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  • netsnmp - how to register string?

    - by user1495181
    I use net-snmp. I try to add my own mibs (no need in handler, just a MIB that i can get and set by snmp call), so i followed the scalar example. In order to add my own mibs i defined them in the mib file and create an agent extension.(see below). It work, so i have now an integer MIB. Now i want to add string mib, so i define the MIB , but i dont find a register API for string, like i have for the int - netsnmp_register_int_instance. I look in the includes file , but dosnt found matching one. agent: #include <net-snmp/net-snmp-config.h> #include <net-snmp/net-snmp-includes.h> #include <net-snmp/agent/net-snmp-agent-includes.h> #include "monitor.h" static int int_init = 0; /* default value */ void init_monitor(void) { oid open_connections_count_oid[] = { 1, 3, 6, 1, 4, 1, 8075, 1, 0 }; netsnmp_register_int_instance("open_connections_count", open_connections_count_oid, OID_LENGTH(open_connections_count_oid), &int_init, NULL); }

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  • Java constructor using generic types

    - by user37903
    I'm having a hard time wrapping my head around Java generic types. Here's a simple piece of code that in my mind should work, but I'm obviously doing something wrong. Eclipse reports this error in BreweryList.java: The method initBreweryFromObject() is undefined for the type <T> The idea is to fill a Vector with instances of objects that are a subclass of the Brewery class, so the invocation would be something like: BreweryList breweryList = new BreweryList(BrewerySubClass.class, list); BreweryList.java package com.beerme.test; import java.util.Vector; public class BreweryList<T extends Brewery> extends Vector<T> { public BreweryList(Class<T> c, Object[] j) { super(); for (int i = 0; i < j.length; i++) { T item = c.newInstance(); // initBreweryFromObject() is an instance method // of Brewery, of which <T> is a subclass (right?) c.initBreweryFromObject(); // "The method initBreweryFromObject() is undefined // for the type <T>" } } } Brewery.java package com.beerme.test; public class Brewery { public Brewery() { super(); } protected void breweryMethod() { } } BrewerySubClass.java package com.beerme.test; public class BrewerySubClass extends Brewery { public BrewerySubClass() { super(); } public void androidMethod() { } } I'm sure this is a complete-generics-noob question, but I'm stuck. Thanks for any tips!

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  • Can't get running JPA2 with Hibernate and Maven

    - by erlord
    Have been trying the whole day long and googled the ** out of the web ... in vain. You are my last hope: Here's my code: The Entity: package sas.test.model; import javax.persistence.Entity; import javax.persistence.Id; @Entity public class Employee { @Id private int id; private String name; private long salary; public Employee() {} public Employee(int id) { this.id = id; } public int getId() { return id; } public void setId(int id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public long getSalary() { return salary; } public void setSalary (long salary) { this.salary = salary; } } The service class: package sas.test.dao; import sas.test.model.Employee; import javax.persistence.*; import java.util.List; public class EmployeeService { protected EntityManager em; public EmployeeService(EntityManager em) { this.em = em; } public Employee createEmployee(int id, String name, long salary) { Employee emp = new Employee(id); emp.setName(name); emp.setSalary(salary); em.persist(emp); return emp; } public void removeEmployee(int id) { Employee emp = findEmployee(id); if (emp != null) { em.remove(emp); } } public Employee raiseEmployeeSalary(int id, long raise) { Employee emp = em.find(Employee.class, id); if (emp != null) { emp.setSalary(emp.getSalary() + raise); } return emp; } public Employee findEmployee(int id) { return em.find(Employee.class, id); } } And the main class: package sas.test.main; import javax.persistence.*; import java.util.List; import sas.test.model.Employee; import sas.test.dao.EmployeeService; public class ExecuteMe { public static void main(String[] args) { EntityManagerFactory emf = Persistence.createEntityManagerFactory("EmployeeService"); EntityManager em = emf.createEntityManager(); EmployeeService service = new EmployeeService(em); // create and persist an employee em.getTransaction().begin(); Employee emp = service.createEmployee(158, "John Doe", 45000); em.getTransaction().commit(); System.out.println("Persisted " + emp); // find a specific employee emp = service.findEmployee(158); System.out.println("Found " + emp); // find all employees // List<Employee> emps = service.findAllEmployees(); // for (Employee e : emps) // System.out.println("Found employee: " + e); // update the employee em.getTransaction().begin(); emp = service.raiseEmployeeSalary(158, 1000); em.getTransaction().commit(); System.out.println("Updated " + emp); // remove an employee em.getTransaction().begin(); service.removeEmployee(158); em.getTransaction().commit(); System.out.println("Removed Employee 158"); // close the EM and EMF when done em.close(); emf.close(); } } Finally my confs. pom.xml: <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>Test_JPA_CRUD</groupId> <artifactId>Test_JPA_CRUD</artifactId> <packaging>jar</packaging> <version>1.0</version> <name>Test_JPA_CRUD</name> <url>http://maven.apache.org</url> <repositories> <repository> <id>maven2-repository.dev.java.net</id> <name>Java.net Repository for Maven</name> <url>http://download.java.net/maven/2/ </url> <layout>default</layout> </repository> <repository> <id>maven.org</id> <name>maven.org Repository</name> <url>http://repo1.maven.org/maven2</url> <releases> <enabled>true</enabled> </releases> <snapshots> <enabled>true</enabled> </snapshots> </repository> </repositories> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.8.1</version> <scope>test</scope> </dependency> <!-- <dependency> <groupId>javax</groupId> <artifactId>javaee-api</artifactId> <version>6.0</version> </dependency> --> <!-- <dependency> <groupId>javax.persistence</groupId> <artifactId>persistence-api</artifactId> <version>1.0</version> </dependency> --> <!-- JPA2 provider --> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-entitymanager</artifactId> <version>3.4.0.GA</version> </dependency> <!-- JDBC driver --> <dependency> <groupId>org.apache.derby</groupId> <artifactId>derby</artifactId> <version>10.5.3.0_1</version> </dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-core</artifactId> <version>3.3.2.GA</version> </dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>ejb3-persistence</artifactId> <version>3.3.2.Beta1</version> </dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-annotations</artifactId> <version>3.4.0.GA</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>1.5.2</version> </dependency> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.14</version> </dependency> </dependencies> <build> <plugins> <!-- compile with mvn assembly:assembly --> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-jar-plugin</artifactId> <version>2.2</version> </plugin> <!-- compile with mvn assembly:assembly --> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-assembly-plugin</artifactId> <version>2.2-beta-2</version> <configuration> <descriptorRefs> <descriptorRef>jar-with-dependencies</descriptorRef> </descriptorRefs> <archive> <manifest> <mainClass>sas.test.main.ExecuteMe</mainClass> </manifest> </archive> </configuration> <executions> <execution> <phase>package</phase> </execution> </executions> </plugin> <plugin> <!-- Force UTF-8 & Java-Version 1.6 --> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <configuration> <source>1.6</source> <target>1.6</target> <!--<encoding>utf-8</encoding>--> </configuration> </plugin> </plugins> </build> </project> and the persistence.xml, which, I promise, is in the classpath of the target: <?xml version="1.0" encoding="UTF-8"?> <persistence version="1.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd http://java.sun.com/xml/ns/persistence "> <persistence-unit name="EmployeeService" transaction-type="RESOURCE_LOCAL"> <provider>org.hibernate.ejb.HibernatePersistence</provider> <class>sas.test.model.Employee</class> <properties> <property name="javax.persistence.jdbc.driver" value="org.apache.derby.jdbc.EmbeddedDriver"/> <property name="hibernate.dialect" value="org.hibernate.dialect.DerbyDialect"/> <property name="hibernate.show_sql" value="true"/> <property name="javax.persistence.jdbc.url" value="jdbc:derby:webdb;create=true"/> </properties> </persistence-unit> </persistence> As you may have noticed from some commented code, I tried both, the Hibernate and the J2EE 6 implementation of JPA2.0, however, both failed. The above-mentioned code ends up with following error: log4j:WARN No appenders could be found for logger (org.hibernate.cfg.annotations.Version). log4j:WARN Please initialize the log4j system properly. Exception in thread "main" java.lang.UnsupportedOperationException: The user must supply a JDBC connection at org.hibernate.connection.UserSuppliedConnectionProvider.getConnection(UserSuppliedConnectionProvider.java:54) at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:446) at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167) at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:142) Any idea what's going wrong? Any "Hello World" maven/JPA2 demo that actually runs? I couldn't get any of those provided by google's search running. Thanx in advance.

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  • JBoss Seam: In ScopeType.PAGE I get: java.lang.IllegalStateException: No conversation context active

    - by Markos Fragkakis
    Hi all, I have a page-scoped component, which has an instance variable List with data, which I display in a datatable. This datatable has pagination, sorting and filtering. The first time gate into the page, I get this appended in my URL: ?conversationId=97. The page works correctly, and when I change datatable pages no now component is created. After a minute or two, and at seamingly random time, I get an exception saying that there is no context. I have not used @Create in my code or my navigation files. So, I have two questions: Why do I get this suffix in my URL? Why did a conversation start? Why the exception? The component is scoped to PAGE. If I received an exception, it should not be related to a conversation. Right? Or is the conversation the exception is referring a temporary conversation? Cheers! UPDATE: This is the page: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xmlns:ui="http://java.sun.com/jsf/facelets" xmlns:h="http://java.sun.com/jsf/html" xmlns:f="http://java.sun.com/jsf/core" xmlns:a4j="http://richfaces.org/a4j" xmlns:rich="http://richfaces.org/rich"> <body> <ui:composition template="/WEB-INF/facelets/templates/template.xhtml"> <ui:define name="content"> <!-- This method returns focus on the filter --> <script type="text/javascript"> function submitByEnter(event){ if (event.keyCode == 13) { if (event.preventDefault) { // Firefox event.preventDefault(); } else { // IE event.returnValue = false; } document.getElementById("refreshButton").click(); } } </script> <h:form prependId="false"> <h:commandButton action="Back" value="Back to home page" /> <br /> <p><h:outputText value="Applicants and Products (experimentation page)" class="page_title" /></p> <h:commandButton action="#{applicantProductListBean.showCreateApplicant}" value="Create Applicant" id="createApplicantButton"> </h:commandButton> <a4j:commandButton value="Refresh" id="refreshButton" action="#{applicantProductListBean.refreshData}" image="/images/icons/refresh48x48.gif" reRender="compositeTable, compositeScroller"> <!-- <f:setPropertyActionListener--> <!-- target="# {pageScrollerBean.applicantProductListPage}" value="1" />--> </a4j:commandButton> <rich:toolTip for="createApplicantButton" value="Create Applicant" /> <rich:dataTable styleClass="composite2DataTable" id="compositeTable" rows="1" columnClasses="col" value="#{applicantProductListBean.dataModel}" var="pageAppList"> <f:facet name="header"> <rich:columnGroup> <rich:column colspan="3"> <h:outputText styleClass="headerText" value="Applicants" /> </rich:column> <rich:column colspan="3"> <h:outputText styleClass="headerText" value="Products" /> </rich:column> <rich:column breakBefore="true"> <h:outputText styleClass="headerText" value="Applicant Name" /> <a4j:commandButton id="sortingApplicantNameButton" action="#{applicantProductListBean.toggleSorting('applicantName')}" image="/images/icons/sorting/#{sortingFilteringBean.applicantProductListSorting.sortingValues['applicantName']}.gif" reRender="sortingApplicantNameButton, sortingApplicantEmailButton, compositeTable, compositeScroller"> <!-- <f:setPropertyActionListener--> <!-- target="#{pageScrollerBean.applicantProductListPage}" value="1" />--> </a4j:commandButton> <br /> <h:inputText value="#{sortingFilteringBean.applicantProductListFiltering.filteringValues['applicantName']}" id="applicantNameFilterValue" onkeypress="return submitByEnter(event)"> </h:inputText> </rich:column> <rich:column> <h:outputText styleClass="headerText" value="Applicant Email" /> <a4j:commandButton id="sortingApplicantEmailButton" action="#{applicantProductListBean.toggleSorting('applicantEmail')}" image="/images/icons/sorting/#{sortingFilteringBean.applicantProductListSorting.sortingValues['applicantEmail']}.gif" reRender="sortingApplicantNameButton, sortingApplicantEmailButton, compositeTable, compositeScroller"> <!-- <f:setPropertyActionListener--> <!-- target="#{pageScrollerBean.applicantProductListPage}" value="1" />--> </a4j:commandButton> <br /> <h:inputText value="#{sortingFilteringBean.applicantProductListFiltering.filteringValues['applicantEmail']}" id="applicantEmailFilterValue" onkeypress="return submitByEnter(event)"> </h:inputText> </rich:column> <rich:column> <h:outputText styleClass="headerText" value="Applicant Actions" /> </rich:column> <rich:column> <h:outputText styleClass="headerText" value="Product Name" /> <a4j:commandButton id="sortingProductNameButton" action="#{applicantProductListBean.toggleSorting('productName')}" immediate="true" image="/images/icons/sorting/#{sortingFilteringBean.applicantProductListSorting.sortingValues['productName']}.gif" reRender="sortingProductNameButton, compositeTable, compositeScroller"> </a4j:commandButton> <br /> <h:inputText value="#{sortingFilteringBean.applicantProductListFiltering.filteringValues['productName']}" id="productNameFilterValue" onkeypress="return submitByEnter(event)"> </h:inputText> </rich:column> <rich:column> <h:outputText styleClass="headerText" value="Product Email" /> <br /> <h:inputText value="#{sortingFilteringBean.applicantProductListFiltering.filteringValues['productEmail']}" id="productEmailFilterValue" onkeypress="return submitByEnter(event)"> </h:inputText> </rich:column> <rich:column> <h:outputText styleClass="headerText" value="Product Actions" /> </rich:column> </rich:columnGroup> </f:facet> <rich:subTable rowClasses="odd_applicant_row, even_applicant_row" value="#{pageAppList}" var="app"> <rich:column styleClass=" internal_cell composite2TextContainingColumn" valign="top"> <h:outputText value="#{app.name}" /> </rich:column> <rich:column styleClass="internal_cell composite2TextContainingColumn" valign="top"> <h:outputText value="#{app.receiptEmail}" /> </rich:column> <rich:column valign="top" styleClass="buttonsColumn"> <h:commandButton action="#{applicantProductListBean.showUpdateApplicant(app)}" image="/images/icons/edit.jpg"> </h:commandButton> <!-- <rich:toolTip for="editApplicantButton" value="Edit Applicant" />--> <h:commandButton action="#{applicantProductListBean.showDeleteApplicant(app)}" image="/images/icons/delete.png"> </h:commandButton> <!-- <rich:toolTip for="deleteApplicantButton" value="Delete Applicant" />--> </rich:column> <rich:column colspan="3"> <table class="productsTableTable"> <tbody> <tr> <td class="createProductButtonTableCell"><h:commandButton action="#{applicantProductListBean.showCreateProduct(app)}" value="Create Product"> </h:commandButton> <!-- <rich:toolTip for="createProductButton" value="Create Product" />--> </td> </tr> <tr> <td><rich:dataTable value="#{app.products}" var="prod" rowClasses="odd_product_row, even_product_row"> <rich:column styleClass="internal_cell composite2TextContainingColumn"> <h:outputText value="#{prod.inventedName}" /> </rich:column> <rich:column styleClass="internal_cell composite2TextContainingColumn"> <h:outputText value="#{prod.receiptEmail}" /> </rich:column> <rich:column styleClass="buttonsColumn"> <h:commandButton action="#{applicantProductListBean.showUpdateProduct(prod)}" image="/images/icons/edit.jpg"> </h:commandButton> <!-- <rich:toolTip for="editProductButton" value="Edit Product" />--> <h:commandButton action="#{applicantProductListBean.showDeleteProduct(prod)}" image="/images/icons/delete.png"> <f:setPropertyActionListener target="#{productBean.product}" value="#{prod}" /> </h:commandButton> <!-- <rich:toolTip for="deleteProductButton" value="Delete Product" />--> </rich:column> </rich:dataTable></td> </tr> </tbody> </table> </rich:column> </rich:subTable> <f:facet name="footer"> <h:panelGrid columns="1" styleClass="applicantProductListFooter"> <h:outputText value="#{msgs.no_results}" rendered="#{(empty applicantProductListBean.dataModel) || (applicantProductListBean.dataModel.rowCount==0)}"/> <rich:datascroller align="center" for="compositeTable" page="#{pageScrollerBean.applicantProductListPage}" id="compositeScroller" reRender="compositeTable" renderIfSinglePage="false" fastControls="hide"> <f:facet name="first"> <h:outputText value="#{msgs.first}" styleClass="scrollerCell" /> </f:facet> <f:facet name="first_disabled"> <h:outputText value="#{msgs.first}" styleClass="scrollerCell" /> </f:facet> <f:facet name="last"> <h:outputText value="#{msgs.last}" styleClass="scrollerCell" /> </f:facet> <f:facet name="last_disabled"> <h:outputText value="#{msgs.last}" styleClass="scrollerCell" /> </f:facet> <f:facet name="next"> <h:outputText value="#{msgs.next}" styleClass="scrollerCell" /> </f:facet> <f:facet name="next_disabled"> <h:outputText value="#{msgs.next}" styleClass="scrollerCell" /> </f:facet> <f:facet name="previous"> <h:outputText value="#{msgs.previous}" styleClass="scrollerCell" /> </f:facet> <f:facet name="previous_disabled"> <h:outputText value="#{msgs.previous}" styleClass="scrollerCell" /> </f:facet> </rich:datascroller> </h:panelGrid> </f:facet> </rich:dataTable> </h:form> </ui:define> This is the backing bean: @Name("applicantProductListBean") @Scope(ScopeType.PAGE) public class ApplicantProductListBean extends BasePagedSortableFilterableListBean { /** * Public field for ad-hoc injection to work. */ @EJB(name = "FacadeService") public ApplicantFacadeService applicantFacadeService; @Logger private static Log logger; private final int pageSize = 10; @Out(scope = ScopeType.CONVERSATION, required = false) Applicant currentApplicant; @Out(scope = ScopeType.CONVERSATION, required = false) Product product; @Create public void onCreate() { System.out.println("Create"); } @Override protected DataModel initDataModel(int pageSize) { // get filtering and sorting from session sorting = getSorting(); filtering = getFiltering(); // System.out.println("Initializing a Composite3DataModel"); // System.out.println("Pagesize: " + pageSize); // System.out.println("Filtering: " + filtering.getFilteringValues()); // System.out.println("Sorting: " + sorting.getSortingValues()); return new Composite3DataModel(1, sorting, filtering); } // Navigation methods /** * Navigation-returning method, returns the action to follow after pressing * the "Create Applicant" button * * @return the action to be taken */ public Navigation.ApplicantProductList showCreateApplicant() { return Navigation.ApplicantProductList.SHOW_CREATE_APPLICANT; } /** * Navigation-returning method, returns the action to follow after pressing * the "Edit Applicant" button * * @return the action to be taken */ public Navigation.ApplicantProductList showUpdateApplicant( Applicant applicant) { this.currentApplicant = applicant; return Navigation.ApplicantProductList.SHOW_UPDATE_APPLICANT; } /** * Navigation-returning method, returns the action to follow after pressing * the "Delete Applicant" button * * @return the action to be taken */ public Navigation.ApplicantProductList showDeleteApplicant( Applicant applicant) { this.currentApplicant = applicant; return Navigation.ApplicantProductList.SHOW_DELETE_APPLICANT; } /** * Navigation-returning method, returns the action to follow after pressing * the "Create Product" button * * @return the action to be taken */ public Navigation.ApplicantProductList showCreateProduct(Applicant app) { this.product = new Product(); this.product.setApplicant(app); return Navigation.ApplicantProductList.SHOW_CREATE_PRODUCT; } /** * Navigation-returning method, returns the action to follow after pressing * the "Edit Product" button * * @return the action to be taken */ public Navigation.ApplicantProductList showUpdateProduct(Product prod) { this.product = prod; return Navigation.ApplicantProductList.SHOW_UPDATE_PRODUCT; } /** * Navigation-returning method, returns the action to follow after pressing * the "Delete Product" button * * @return the action to be taken */ public Navigation.ApplicantProductList showDeleteProduct(Product prod) { this.product = prod; return Navigation.ApplicantProductList.SHOW_DELETE_PRODUCT; } /** * */ @Override public Sorting getSorting() { if (sorting == null) { return (getSortingFilteringBeanFromSession() .getApplicantProductListSorting()); } return sorting; } /** * */ @Override public void setSorting(Sorting sorting) { getSortingFilteringBeanFromSession().setApplicantProductListSorting( sorting); } /** * */ @Override public Filtering getFiltering() { if (filtering == null) { return (getSortingFilteringBeanFromSession() .getApplicantProductListFiltering()); } return filtering; } /** * */ @Override public void setFiltering(Filtering filtering) { getSortingFilteringBeanFromSession().setApplicantProductListFiltering( filtering); } /** * @return the currentApplicant */ public Applicant getCurrentApplicant() { return currentApplicant; } /** * @param currentApplicant * the currentApplicant to set */ public void setCurrentApplicant(Applicant applicant) { this.currentApplicant = applicant; } /** * The model for this page * */ private class Composite3DataModel extends PagedSortableFilterableDataModel<List<Applicant>> { public Composite3DataModel(int pageSize, Sorting sorting, Filtering filtering) { super(pageSize, sorting, filtering); } @Override protected DataPage<List<Applicant>> fetchPage(int fakeStartRow, int fakePageSize) { // if (logger.isTraceEnabled()) { System.out.println("Getting page with fakeStartRow: " + fakeStartRow + " and fakePageSize " + fakePageSize); // } // to find the page size multiply the startRow and the fakePageSize // (which is 1) to the actual page size int startRow = fakeStartRow * ApplicantProductListBean.this.pageSize; int pageSize = fakePageSize * ApplicantProductListBean.this.pageSize; // if (logger.isTraceEnabled()) { System.out.println("Getting page with startRow: " + startRow + " and pageSize " + pageSize); // } List<Applicant> pageApplicants = applicantFacadeService .findPagedWithCriteria(startRow, pageSize, filtering, sorting); // List<Applicant> pageApplicants = applicantFacadeService // .findPagedWithDynamicQuery(startRow, pageSize, filtering, // sorting, true); // if (logger.isTraceEnabled()) { System.out.println("Set of applicants: " + pageApplicants.size()); // } List<List<Applicant>> pageApplicantsListContainer = new ArrayList<List<Applicant>>(); pageApplicantsListContainer.add(pageApplicants); DataPage<List<Applicant>> dataPage = new DataPage<List<Applicant>>( this.getRowCount(), fakeStartRow, pageApplicantsListContainer); return dataPage; } @Override protected int getDatasetSize() { // int size = getServiceFacade().countWithCriteria(filtering, // sorting); // int size = // applicantFacadeService.countWithDynamicQuery(filtering, sorting, // false); int size = (int) Math.ceil((double) applicantFacadeService .countWithCriteria(filtering, sorting, false) / pageSize); if (logger.isTraceEnabled()) { logger.trace("Got Dataset Size: " + size); } return size; } } /** * @return the product */ public Product getProduct() { return product; } /** * @param product * the product to set */ public void setProduct(Product product) { this.product = product; } }

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  • Passing data between android ListActivities in Java

    - by Will Janes
    I am new to Android! I am having a problem getting this code to work... Basically I Go from one list activity to another and pass the text from a list item through the intent of the activity to the new list view, then retrieve that text in the new list activity and then preform a http request based on value of that list item. Log Cat 04-05 17:47:32.370: E/AndroidRuntime(30135): FATAL EXCEPTION: main 04-05 17:47:32.370: E/AndroidRuntime(30135): java.lang.ClassCastException:android.widget.LinearLayout 04-05 17:47:32.370: E/AndroidRuntime(30135): at com.thickcrustdesigns.ufood.CatogPage$1.onItemClick(CatogPage.java:66) 04-05 17:47:32.370: E/AndroidRuntime(30135): at android.widget.AdapterView.performItemClick(AdapterView.java:284) 04-05 17:47:32.370: E/AndroidRuntime(30135): at android.widget.ListView.performItemClick(ListView.java:3731) 04-05 17:47:32.370: E/AndroidRuntime(30135): at android.widget.AbsListView$PerformClick.run(AbsListView.java:1959) 04-05 17:47:32.370: E/AndroidRuntime(30135): at android.os.Handler.handleCallback(Handler.java:587) 04-05 17:47:32.370: E/AndroidRuntime(30135): at android.os.Handler.dispatchMessage(Handler.java:92) 04-05 17:47:32.370: E/AndroidRuntime(30135): at android.os.Looper.loop(Looper.java:130) 04-05 17:47:32.370: E/AndroidRuntime(30135): at android.app.ActivityThread.main(ActivityThread.java:3691) 04-05 17:47:32.370: E/AndroidRuntime(30135): at java.lang.reflect.Method.invokeNative(Native Method) 04-05 17:47:32.370: E/AndroidRuntime(30135): at java.lang.reflect.Method.invoke(Method.java:507) 04-05 17:47:32.370: E/AndroidRuntime(30135): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:907) 04-05 17:47:32.370: E/AndroidRuntime(30135): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:665) 04-05 17:47:32.370: E/AndroidRuntime(30135): at dalvik.system.NativeStart.main(Native Method) ListActivity 1 package com.thickcrustdesigns.ufood; import java.util.ArrayList; import org.apache.http.NameValuePair; import org.apache.http.message.BasicNameValuePair; import org.json.JSONException; import org.json.JSONObject; import android.app.ListActivity; import android.content.Intent; import android.os.Bundle; import android.view.View; import android.widget.AdapterView; import android.widget.AdapterView.OnItemClickListener; import android.widget.Button; import android.widget.ListView; import android.widget.TextView; public class CatogPage extends ListActivity { ListView listView1; Button btn_bk; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.definition_main); btn_bk = (Button) findViewById(R.id.btn_bk); listView1 = (ListView) findViewById(android.R.id.list); ArrayList<NameValuePair> nvp = new ArrayList<NameValuePair>(); nvp.add(new BasicNameValuePair("request", "categories")); ArrayList<JSONObject> jsondefs = Request.fetchData(this, nvp); String[] defs = new String[jsondefs.size()]; for (int i = 0; i < jsondefs.size(); i++) { try { defs[i] = jsondefs.get(i).getString("Name"); } catch (JSONException e) { // TODO Auto-generated catch block e.printStackTrace(); } } uFoodAdapter adapter = new uFoodAdapter(this, R.layout.definition_list, defs); listView1.setAdapter(adapter); ListView lv = getListView(); lv.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { TextView tv = (TextView) view; String p = tv.getText().toString(); Intent i = new Intent(getApplicationContext(), Results.class); i.putExtra("category", p); startActivity(i); } }); btn_bk.setOnClickListener(new View.OnClickListener() { public void onClick(View arg0) { Intent i = new Intent(getApplicationContext(), UFoodAppActivity.class); startActivity(i); } }); } } **ListActivity 2** package com.thickcrustdesigns.ufood; import java.util.ArrayList; import org.apache.http.NameValuePair; import org.apache.http.message.BasicNameValuePair; import org.json.JSONException; import org.json.JSONObject; import android.app.ListActivity; import android.os.Bundle; import android.widget.ListView; public class Results extends ListActivity { ListView listView1; enum Category { Chicken, Beef, Chinese, Cocktails, Curry, Deserts, Fish, ForOne { public String toString() { return "For One"; } }, Lamb, LightBites { public String toString() { return "Light Bites"; } }, Pasta, Pork, Vegetarian } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); this.setContentView(R.layout.definition_main); listView1 = (ListView) findViewById(android.R.id.list); Bundle data = getIntent().getExtras(); String category = data.getString("category"); Category cat = Category.valueOf(category); String value = null; switch (cat) { case Chicken: value = "Chicken"; break; case Beef: value = "Beef"; break; case Chinese: value = "Chinese"; break; case Cocktails: value = "Cocktails"; break; case Curry: value = "Curry"; break; case Deserts: value = "Deserts"; break; case Fish: value = "Fish"; break; case ForOne: value = "ForOne"; break; case Lamb: value = "Lamb"; break; case LightBites: value = "LightBites"; break; case Pasta: value = "Pasta"; break; case Pork: value = "Pork"; break; case Vegetarian: value = "Vegetarian"; } ArrayList<NameValuePair> nvp = new ArrayList<NameValuePair>(); nvp.add(new BasicNameValuePair("request", "category")); nvp.add(new BasicNameValuePair("cat", value)); ArrayList<JSONObject> jsondefs = Request.fetchData(this, nvp); String[] defs = new String[jsondefs.size()]; for (int i = 0; i < jsondefs.size(); i++) { try { defs[i] = jsondefs.get(i).getString("Name"); } catch (JSONException e) { // TODO Auto-generated catch block e.printStackTrace(); } } uFoodAdapter adapter = new uFoodAdapter(this, R.layout.definition_list, defs); listView1.setAdapter(adapter); } } Request package com.thickcrustdesigns.ufood; import java.io.BufferedReader; import java.io.InputStream; import java.io.InputStreamReader; import java.util.ArrayList; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.NameValuePair; import org.apache.http.client.HttpClient; import org.apache.http.client.entity.UrlEncodedFormEntity; import org.apache.http.client.methods.HttpPost; import org.apache.http.impl.client.DefaultHttpClient; import org.json.JSONArray; import org.json.JSONObject; import android.content.Context; import android.util.Log; import android.widget.Toast; public class Request { @SuppressWarnings("null") public static ArrayList<JSONObject> fetchData(Context context, ArrayList<NameValuePair> nvp) { ArrayList<JSONObject> listItems = new ArrayList<JSONObject>(); InputStream is = null; try { HttpClient httpclient = new DefaultHttpClient(); HttpPost httppost = new HttpPost( "http://co350-11d.projects02.glos.ac.uk/php/database.php"); httppost.setEntity(new UrlEncodedFormEntity(nvp)); HttpResponse response = httpclient.execute(httppost); HttpEntity entity = response.getEntity(); is = entity.getContent(); } catch (Exception e) { Log.e("log_tag", "Error in http connection" + e.toString()); } // convert response to string String result = ""; try { BufferedReader reader = new BufferedReader(new InputStreamReader( is, "iso-8859-1"), 8); InputStream stream = null; StringBuilder sb = null; while ((result = reader.readLine()) != null) { sb.append(result + "\n"); } stream.close(); result = sb.toString(); } catch (Exception e) { Log.e("log_tag", "Error converting result " + e.toString()); } try { JSONArray jArray = new JSONArray(result); for (int i = 0; i < jArray.length(); i++) { JSONObject jo = jArray.getJSONObject(i); listItems.add(jo); } } catch (Exception e) { Toast.makeText(context.getApplicationContext(), "None Found!", Toast.LENGTH_LONG).show(); } return listItems; } } Any help would be grateful! Many Thanks EDIT Sorry very tired so missed out my 2nd ListActivity package com.thickcrustdesigns.ufood; import java.util.ArrayList; import org.apache.http.NameValuePair; import org.apache.http.message.BasicNameValuePair; import org.json.JSONException; import org.json.JSONObject; import android.app.ListActivity; import android.os.Bundle; import android.widget.ListView; public class Results extends ListActivity { ListView listView1; enum Category { Chicken, Beef, Chinese, Cocktails, Curry, Deserts, Fish, ForOne { public String toString() { return "For One"; } }, Lamb, LightBites { public String toString() { return "Light Bites"; } }, Pasta, Pork, Vegetarian } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); this.setContentView(R.layout.definition_main); listView1 = (ListView) findViewById(android.R.id.list); Bundle data = getIntent().getExtras(); String category = data.getString("category"); Category cat = Category.valueOf(category); String value = null; switch (cat) { case Chicken: value = "Chicken"; break; case Beef: value = "Beef"; break; case Chinese: value = "Chinese"; break; case Cocktails: value = "Cocktails"; break; case Curry: value = "Curry"; break; case Deserts: value = "Deserts"; break; case Fish: value = "Fish"; break; case ForOne: value = "ForOne"; break; case Lamb: value = "Lamb"; break; case LightBites: value = "LightBites"; break; case Pasta: value = "Pasta"; break; case Pork: value = "Pork"; break; case Vegetarian: value = "Vegetarian"; } ArrayList<NameValuePair> nvp = new ArrayList<NameValuePair>(); nvp.add(new BasicNameValuePair("request", "category")); nvp.add(new BasicNameValuePair("cat", value)); ArrayList<JSONObject> jsondefs = Request.fetchData(this, nvp); String[] defs = new String[jsondefs.size()]; for (int i = 0; i < jsondefs.size(); i++) { try { defs[i] = jsondefs.get(i).getString("Name"); } catch (JSONException e) { // TODO Auto-generated catch block e.printStackTrace(); } } uFoodAdapter adapter = new uFoodAdapter(this, R.layout.definition_list, defs); listView1.setAdapter(adapter); } } Sorry again! Cheers guys!

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  • struts2-json-plugin not retrieving json data from action class for Struts-JQuery-Plugin grid

    - by thebravedave
    Hello, Im having an issue getting json working with the struts-jquery-plugin-2.1.0 I have included the struts2-json-plugin-2.1.8.1 in my classpath as well. Im sure that I have my struts-jquery-plugin configured correctly because the grid loads, but doesnt load the data its supposed to get from the action class that has been json'ized. The documentation with the json plugin and the struts-jquery plugin leaves ALOT of gaps that I cant even find with examples/tutorials, so I come to the community at stackoverflow. My action class has a property called gridModel thats a List with a basic POJO called Customer. Customer is a pojo with one property, id. I have a factory that supplies the populated List to the actions List property which i mentioned called gridModel. Heres how i set up my struts.xml file: <constant name="struts.devMode" value="true"/> <constant name="struts.objectFactory" value="guice"/> <package name="org.webhop.ywdc" namespace="/" extends="struts-default,json-default"> <result-types> <result-type name="json" class="com.googlecode.jsonplugin.JSONResult"> </result-type> </result-types> <action name="login" class="org.webhop.ywdc.LoginAction" > <result type="json"></result> <result name="success" type="dispatcher">/pages/uiTags/Success.jsp</result> <result name="error" type="redirect">/pages/uiTags/Login.jsp</result> <interceptor-ref name="cookie"> <param name="cookiesName">JSESSIONID</param> </interceptor-ref> </action> <action name="logout" class="org.webhop.ywdc.LogoutAction" > <result name="success" type="redirect">/pages/uiTags/Login.jsp</result> </action> </package> In the struts.xml file i set the and in my action i listed in the action configuration. Heres my jsp page that the action loads: <%@ taglib prefix="s" uri="/struts-tags" % <%@ taglib prefix="sj" uri="/struts-jquery-tags"% <%@ taglib prefix="sjg" uri="/struts-jquery-grid-tags"% <%@ page language="java" contentType="text/html" import="java.util.*"% Welcome, you have logged in! <s:url id="remoteurl" action="login"/> <sjg:grid id="gridtable" caption="Customer Examples" dataType="json" href="%{remoteurl}" pager="false" gridModel="gridModel" > <sjg:gridColumn name="id" key="true" index="id" title="ID" formatter="integer" sortable="false"/> </sjg:grid> Welcome, you have logged in. <br /> <b>Session Time: </b><%=new Date(session.getLastAccessedTime())%> <h2>Password:<s:property value="password"/></h2> <h2>userId:<s:property value="userId"/></h2> <br /> <a href="<%= request.getContextPath() %>/logout.action">Logout</a><br /><br /> ID: <s:property value="id"/> session id: <s:property value="JSESSIONID"/> </body> Im not really sure how to tell what json the json plugin is creating from the action class. If i did know how i could tell if it wasnt formed properly. As far as I know if I specificy in my action configuration in struts.xml, that the grid, which is set to read json and knows to look for "gridModel" will then automatically load the json to the grid, but its not. Heres my action class: public class LoginAction extends ActionSupport { public String JSESSIONID; public int id; private String userId; private String password; public Members member; public List<Customer> gridModel; public String execute() { Cookie cookie = new Cookie("ywdcsid", password); cookie.setMaxAge(3600); HttpServletResponse response = ServletActionContext.getResponse(); response.addCookie(cookie); HttpServletRequest request = ServletActionContext.getRequest(); Cookie[] ckey = request.getCookies(); for(Cookie c: ckey) { System.out.println(c.getName() + "/cookie_name + " + c.getValue() + "/cookie_value"); } Map requestParameters = ActionContext.getContext().getParameters();//getParameters(); String[] testString = (String[])requestParameters.get("password"); String passwordString = testString[0]; String[] usernameArray = (String[])requestParameters.get("userId"); String usernameString = usernameArray[0]; Injector injector = Guice.createInjector(new GuiceModule()); HibernateConnection connection = injector.getInstance(HibernateConnection.class); AuthenticationServices currentService = injector.getInstance(AuthenticationServices.class); currentService.setConnection(connection); currentService.setInjector(injector); member = currentService.getMemberByUsernamePassword(usernameString, passwordString); userId = member.getUsername(); password = member.getPassword(); CustomerFactory customerFactory = new CustomerFactory(); gridModel = customerFactory.getCustomers(); if(member == null) { return ERROR; } else { id = member.getId(); Map session = ActionContext.getContext().getSession(); session.put(usernameString, member); return SUCCESS; } } public String logout() throws Exception { Map session = ActionContext.getContext().getSession(); session.remove("logged-in"); return SUCCESS; } public List<Customer> getGridModel() { return gridModel; } public void setGridModel(List<Customer> gridModel) { this.gridModel = gridModel; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } public String getUserId() { return userId; } public void setUserId(String userId) { this.userId = userId; } public String getJSESSIONID() { return JSESSIONID; } public void setJSESSIONID(String jsessionid) { JSESSIONID = jsessionid; } } Please help me with this problem. You will make my week, as this is a major bottleneck for me :( thanks so much, thebravedave

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  • InternalsVisibleTo attribute and security vulnerability

    - by Sergey Litvinov
    I found one issue with InternalsVisibleTo attribute usage. The idea of InternalsVisibleTo attribute to allow some other assemblies to use internal classes\methods of this assembly. To make it work you need sign your assemblies. So, if other assemblies isn't specified in main assembly and if they have incorrect public key, then they can't use Internal members. But the issue in Reflection Emit type generation. For example, we have CorpLibrary1 assembly and it has such class: public class TestApi { internal virtual void DoSomething() { Console.WriteLine("Base DoSomething"); } public void DoApiTest() { // some internal logic // ... // call internal method DoSomething(); } } This assembly is marked with such attribute to allow another CorpLibrary2 to make inheritor for that TestAPI and override behaviour of DoSomething method. [assembly: InternalsVisibleTo("CorpLibrary2, PublicKey=0024000004800000940000000602000000240000525341310004000001000100434D9C5E1F9055BF7970B0C106AAA447271ECE0F8FC56F6AF3A906353F0B848A8346DC13C42A6530B4ED2E6CB8A1E56278E664E61C0D633A6F58643A7B8448CB0B15E31218FB8FE17F63906D3BF7E20B9D1A9F7B1C8CD11877C0AF079D454C21F24D5A85A8765395E5CC5252F0BE85CFEB65896EC69FCC75201E09795AAA07D0")] The issue is that I'm able to override this internal DoSomething method and break class logic. My steps to do it: Generate new assembly in runtime via AssemblyBuilder Get AssemblyName from CorpLibrary1 and copy PublikKey to new assembly Generate new assembly that will inherit TestApi class As PublicKey and name of generated assembly is the same as in InternalsVisibleTo, then we can generate new DoSomething method that will override internal method in TestAPI assembly Then we have another assembly that isn't related to this CorpLibrary1 and can't use internal members. We have such test code in it: class Program { static void Main(string[] args) { var builder = new FakeBuilder(InjectBadCode, "DoSomething", true); TestApi fakeType = builder.CreateFake(); fakeType.DoApiTest(); // it will display: // Inject bad code // Base DoSomething Console.ReadLine(); } public static void InjectBadCode() { Console.WriteLine("Inject bad code"); } } And this FakeBuilder class has such code: /// /// Builder that will generate inheritor for specified assembly and will overload specified internal virtual method /// /// Target type public class FakeBuilder { private readonly Action _callback; private readonly Type _targetType; private readonly string _targetMethodName; private readonly string _slotName; private readonly bool _callBaseMethod; public FakeBuilder(Action callback, string targetMethodName, bool callBaseMethod) { int randomId = new Random((int)DateTime.Now.Ticks).Next(); _slotName = string.Format("FakeSlot_{0}", randomId); _callback = callback; _targetType = typeof(TFakeType); _targetMethodName = targetMethodName; _callBaseMethod = callBaseMethod; } public TFakeType CreateFake() { // as CorpLibrary1 can't use code from unreferences assemblies, we need to store this Action somewhere. // And Thread is not bad place for that. It's not the best place as it won't work in multithread application, but it's just a sample LocalDataStoreSlot slot = Thread.AllocateNamedDataSlot(_slotName); Thread.SetData(slot, _callback); // then we generate new assembly with the same nameand public key as target assembly trusts by InternalsVisibleTo attribute var newTypeName = _targetType.Name + "Fake"; var targetAssembly = Assembly.GetAssembly(_targetType); AssemblyName an = new AssemblyName(); an.Name = GetFakeAssemblyName(targetAssembly); // copying public key to new generated assembly var assemblyName = targetAssembly.GetName(); an.SetPublicKey(assemblyName.GetPublicKey()); an.SetPublicKeyToken(assemblyName.GetPublicKeyToken()); AssemblyBuilder assemblyBuilder = Thread.GetDomain().DefineDynamicAssembly(an, AssemblyBuilderAccess.RunAndSave); ModuleBuilder moduleBuilder = assemblyBuilder.DefineDynamicModule(assemblyBuilder.GetName().Name, true); // create inheritor for specified type TypeBuilder typeBuilder = moduleBuilder.DefineType(newTypeName, TypeAttributes.Public | TypeAttributes.Class, _targetType); // LambdaExpression.CompileToMethod can be used only with static methods, so we need to create another method that will call our Inject method // we can do the same via ILGenerator, but expression trees are more easy to use MethodInfo methodInfo = CreateMethodInfo(moduleBuilder); MethodBuilder methodBuilder = typeBuilder.DefineMethod(_targetMethodName, MethodAttributes.Public | MethodAttributes.Virtual); ILGenerator ilGenerator = methodBuilder.GetILGenerator(); // call our static method that will call inject method ilGenerator.EmitCall(OpCodes.Call, methodInfo, null); // in case if we need, then we put call to base method if (_callBaseMethod) { var baseMethodInfo = _targetType.GetMethod(_targetMethodName, BindingFlags.NonPublic | BindingFlags.Instance); // place this to stack ilGenerator.Emit(OpCodes.Ldarg_0); // call the base method ilGenerator.EmitCall(OpCodes.Call, baseMethodInfo, new Type[0]); // return ilGenerator.Emit(OpCodes.Ret); } // generate type, create it and return to caller Type cheatType = typeBuilder.CreateType(); object type = Activator.CreateInstance(cheatType); return (TFakeType)type; } /// /// Get name of assembly from InternalsVisibleTo AssemblyName /// private static string GetFakeAssemblyName(Assembly assembly) { var internalsVisibleAttr = assembly.GetCustomAttributes(typeof(InternalsVisibleToAttribute), true).FirstOrDefault() as InternalsVisibleToAttribute; if (internalsVisibleAttr == null) { throw new InvalidOperationException("Assembly hasn't InternalVisibleTo attribute"); } var ind = internalsVisibleAttr.AssemblyName.IndexOf(","); var name = internalsVisibleAttr.AssemblyName.Substring(0, ind); return name; } /// /// Generate such code: /// ((Action)Thread.GetData(Thread.GetNamedDataSlot(_slotName))).Invoke(); /// private LambdaExpression MakeStaticExpressionMethod() { var allocateMethod = typeof(Thread).GetMethod("GetNamedDataSlot", BindingFlags.Static | BindingFlags.Public); var getDataMethod = typeof(Thread).GetMethod("GetData", BindingFlags.Static | BindingFlags.Public); var call = Expression.Call(allocateMethod, Expression.Constant(_slotName)); var getCall = Expression.Call(getDataMethod, call); var convCall = Expression.Convert(getCall, typeof(Action)); var invokExpr = Expression.Invoke(convCall); var lambda = Expression.Lambda(invokExpr); return lambda; } /// /// Generate static class with one static function that will execute Action from Thread NamedDataSlot /// private MethodInfo CreateMethodInfo(ModuleBuilder moduleBuilder) { var methodName = "_StaticTestMethod_" + _slotName; var className = "_StaticClass_" + _slotName; TypeBuilder typeBuilder = moduleBuilder.DefineType(className, TypeAttributes.Public | TypeAttributes.Class); MethodBuilder methodBuilder = typeBuilder.DefineMethod(methodName, MethodAttributes.Static | MethodAttributes.Public); LambdaExpression expression = MakeStaticExpressionMethod(); expression.CompileToMethod(methodBuilder); var type = typeBuilder.CreateType(); return type.GetMethod(methodName, BindingFlags.Static | BindingFlags.Public); } } remarks about sample: as we need to execute code from another assembly, CorpLibrary1 hasn't access to it, so we need to store this delegate somewhere. Just for testing I stored it in Thread NamedDataSlot. It won't work in multithreaded applications, but it's just a sample. I know that we use Reflection to get private\internal members of any class, but within reflection we can't override them. But this issue is allows anyone to override internal class\method if that assembly has InternalsVisibleTo attribute. I tested it on .Net 3.5\4 and it works for both of them. How does it possible to just copy PublicKey without private key and use it in runtime? The whole sample can be found there - https://github.com/sergey-litvinov/Tests_InternalsVisibleTo UPDATE1: That test code in Program and FakeBuilder classes hasn't access to key.sn file and that library isn't signed, so it hasn't public key at all. It just copying it from CorpLibrary1 by using Reflection.Emit

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  • wxWidgets in Code::Blocks

    - by Vlad
    Hello all, I'm trying to compile the minimal sample from the "Cross-Platform GUI Programming with wxWidgets" book but the following compile errors: ||=== minimal, Debug ===| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_frame.o):frame.cpp:(.text+0x918)||undefined reference to `__Unwind_Resume' | C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_frame.o):frame.cpp:(.text+0x931)||undefined reference to `__Unwind_Resume'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_frame.o):frame.cpp:(.text+0xa96)||undefined reference to `__Unwind_Resume'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_frame.o):frame.cpp:(.text+0xada)||undefined reference to `__Unwind_Resume'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_frame.o):frame.cpp:(.text+0xb1e)||undefined reference to `__Unwind_Resume'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_frame.o):frame.cpp:(.eh_frame+0x12)||undefined reference to `___gxx_personality_v0'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_datacmn.o):datacmn.cpp:(.eh_frame+0x11)||undefined reference to `___gxx_personality_v0'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_gdicmn.o):gdicmn.cpp:(.text+0x63a)||undefined reference to `__Unwind_Resume'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_gdicmn.o):gdicmn.cpp:(.text+0x696)||undefined reference to `__Unwind_Resume'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_gdicmn.o):gdicmn.cpp:(.text+0x6f2)||undefined reference to `__Unwind_Resume'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_gdicmn.o):gdicmn.cpp:(.text+0x74a)||undefined reference to `__Unwind_Resume'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_gdicmn.o):gdicmn.cpp:(.text+0x7a2)||undefined reference to `__Unwind_Resume'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_gdicmn.o):gdicmn.cpp:(.eh_frame+0x12)||undefined reference to `___gxx_personality_v0'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_menu.o):menu.cpp:(.text+0x88f)||undefined reference to `__Unwind_Resume'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_menu.o):menu.cpp:(.text+0x927)||undefined reference to `__Unwind_Resume' | C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_menu.o):menu.cpp:(.text+0x9bf)||undefined reference to `__Unwind_Resume'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_menu.o):menu.cpp:(.text+0xb8b)||undefined reference to `__Unwind_Resume'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_menu.o):menu.cpp:(.text+0xc87)||undefined reference to `__Unwind_Resume'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_menu.o):menu.cpp:(.eh_frame+0x12)||undefined reference to `___gxx_personality_v0'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_menucmn.o):menucmn.cpp:(.text+0xbc0)||undefined reference to `__Unwind_Resume'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_menucmn.o):menucmn.cpp:(.text+0xc59)||undefined reference to `__Unwind_Resume'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_menucmn.o):menucmn.cpp:(.text+0xcf5)||undefined reference to `__Unwind_Resume'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_menucmn.o):menucmn.cpp:(.text+0xda6)||undefined reference to `__Unwind_Resume'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_menucmn.o):menucmn.cpp:(.text+0xdce)||undefined reference to `__Unwind_Resume'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_menucmn.o):menucmn.cpp:(.eh_frame+0x12)||undefined reference to `___gxx_personality_v0'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_icon.o):icon.cpp:(.text+0x1ff)||undefined reference to `__Unwind_Resume'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_icon.o):icon.cpp:(.text+0x257)||undefined reference to `__Unwind_Resume'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_icon.o):icon.cpp:(.text+0x2af)||undefined reference to `__Unwind_Resume'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_icon.o):icon.cpp:(.text+0x2fc)||undefined reference to `__Unwind_Resume'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_icon.o):icon.cpp:(.text+0x36d)||undefined reference to `__Unwind_Resume'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_icon.o):icon.cpp:(.eh_frame+0x12)||undefined reference to `___gxx_personality_v0'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_gdiimage.o):gdiimage.cpp:(.text+0x4a8)||undefined reference to `__Unwind_Resume'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_gdiimage.o):gdiimage.cpp:(.text+0x73a)||undefined reference to `__Unwind_Resume'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_gdiimage.o):gdiimage.cpp:(.text+0x813)||undefined reference to `__Unwind_Resume'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_gdiimage.o):gdiimage.cpp:(.text+0xc06)||undefined reference to `__Unwind_Resume'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_gdiimage.o):gdiimage.cpp:(.text+0xd3e)||undefined reference to `__Unwind_Resume'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_gdiimage.o):gdiimage.cpp:(.eh_frame+0x12)||undefined reference to `___gxx_personality_v0'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_event.o):event.cpp:(.text+0x970)||undefined reference to `__Unwind_Resume'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_event.o):event.cpp:(.text+0xa80)||undefined reference to `__Unwind_Resume'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_event.o):event.cpp:(.text+0xb8c)||undefined reference to `__Unwind_Resume'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_event.o):event.cpp:(.text+0xc78)||undefined reference to `__Unwind_Resume'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_event.o):event.cpp:(.text+0xd4f)||undefined reference to `__Unwind_Resume'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_event.o):event.cpp:(.eh_frame+0x12)||undefined reference to `___gxx_personality_v0'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_appcmn.o):appcmn.cpp:(.text+0x2ef)||undefined reference to `__Unwind_Resume'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_appcmn.o):appcmn.cpp:(.text+0x32b)||undefined reference to `__Unwind_Resume'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_appcmn.o):appcmn.cpp:(.text+0x43d)||undefined reference to `__Unwind_Resume'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_appcmn.o):appcmn.cpp:(.text+0x586)||undefined reference to `__Unwind_Resume'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_appcmn.o):appcmn.cpp:(.text+0x601)||undefined reference to `__Unwind_Resume'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_appcmn.o):appcmn.cpp:(.eh_frame+0x12)||undefined reference to `___gxx_personality_v0'| C:\SourceCode\Libraries\wxWidgets2.8\lib\gcc_lib\libwxmsw28u_core.a(corelib_app.o):app.cpp:(.text+0x1da)||undefined reference to `__Unwind_Resume'| ||More errors follow but not being shown.| ||Edit the max errors limit in compiler options...| ||=== Build finished: 50 errors, 0 warnings ===| Here's the code sample from the book: #include "wx/wx.h" #include "mondrian.xpm" // Declare the application class class MyApp : public wxApp { public: // Called on application startup virtual bool OnInit(); }; // Declare our main frame class class MyFrame : public wxFrame { public: // Constructor MyFrame(const wxString& title); // Event handlers void OnQuit(wxCommandEvent& event); void OnAbout(wxCommandEvent& event); private: // This class handles events DECLARE_EVENT_TABLE() }; // Implements MyApp& GetApp() DECLARE_APP(MyApp) // Give wxWidgets the means to create a MyApp object IMPLEMENT_APP(MyApp) // Initialize the application bool MyApp::OnInit() { // Create the main application window MyFrame *frame = new MyFrame(wxT("Minimal wxWidgets App")); // Show it frame->Show(true); // Start the event loop return true; } // Event table for MyFrame BEGIN_EVENT_TABLE(MyFrame, wxFrame) EVT_MENU(wxID_ABOUT, MyFrame::OnAbout) EVT_MENU(wxID_EXIT, MyFrame::OnQuit) END_EVENT_TABLE() void MyFrame::OnAbout(wxCommandEvent& event) { wxString msg; msg.Printf(wxT("Hello and welcome to %s"), wxVERSION_STRING); wxMessageBox(msg, wxT("About Minimal"), wxOK | wxICON_INFORMATION, this); } void MyFrame::OnQuit(wxCommandEvent& event) { // Destroy the frame Close(); } MyFrame::MyFrame(const wxString& title) : wxFrame(NULL, wxID_ANY, title) { // Set the frame icon SetIcon(wxIcon(mondrian_xpm)); // Create a menu bar wxMenu *fileMenu = new wxMenu; // The “About” item should be in the help menu wxMenu *helpMenu = new wxMenu; helpMenu->Append(wxID_ABOUT, wxT("&About...\tF1"), wxT("Show about dialog")); fileMenu->Append(wxID_EXIT, wxT("E&xit\tAlt-X"), wxT("Quit this program")); // Now append the freshly created menu to the menu bar... wxMenuBar *menuBar = new wxMenuBar(); menuBar->Append(fileMenu, wxT("&File")); menuBar->Append(helpMenu, wxT("&Help")); // ... and attach this menu bar to the frame SetMenuBar(menuBar); // Create a status bar just for fun CreateStatusBar(2); SetStatusText(wxT("Welcome to wxWidgets!")); } So what's happenning? Thanks! P.S.: I installed wxWidgets through wxPack wich afaik comes with everything precomplied and i also added the wxWidgets directory to Global variables-base in Code::Blocks so everything should be correctly set, right?

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  • .NET file Decryption - Bad Data

    - by Jon
    I am in the process of rewriting an old application. The old app stored data in a scoreboard file that was encrypted with the following code: private const String SSecretKey = @"?B?n?Mj?"; public DataTable GetScoreboardFromFile() { FileInfo f = new FileInfo(scoreBoardLocation); if (!f.Exists) { return setupNewScoreBoard(); } DESCryptoServiceProvider DES = new DESCryptoServiceProvider(); //A 64 bit key and IV is required for this provider. //Set secret key For DES algorithm. DES.Key = ASCIIEncoding.ASCII.GetBytes(SSecretKey); //Set initialization vector. DES.IV = ASCIIEncoding.ASCII.GetBytes(SSecretKey); //Create a file stream to read the encrypted file back. FileStream fsread = new FileStream(scoreBoardLocation, FileMode.Open, FileAccess.Read); //Create a DES decryptor from the DES instance. ICryptoTransform desdecrypt = DES.CreateDecryptor(); //Create crypto stream set to read and do a //DES decryption transform on incoming bytes. CryptoStream cryptostreamDecr = new CryptoStream(fsread, desdecrypt, CryptoStreamMode.Read); DataTable dTable = new DataTable("scoreboard"); dTable.ReadXml(new StreamReader(cryptostreamDecr)); cryptostreamDecr.Close(); fsread.Close(); return dTable; } This works fine. I have copied the code into my new app so that I can create a legacy loader and convert the data into the new format. The problem is I get a "Bad Data" error: System.Security.Cryptography.CryptographicException was unhandled Message="Bad Data.\r\n" Source="mscorlib" The error fires at this line: dTable.ReadXml(new StreamReader(cryptostreamDecr)); The encrypted file was created today on the same machine with the old code. I guess that maybe the encryption / decryption process uses the application name / file or something and therefore means I can not open it. Does anyone have an idea as to: A) Be able explain why this isn't working? B) Offer a solution that would allow me to be able to open files that were created with the legacy application and be able to convert them please? Here is the whole class that deals with loading and saving the scoreboard: using System; using System.Collections.Generic; using System.Text; using System.Security.Cryptography; using System.Runtime.InteropServices; using System.IO; using System.Data; using System.Xml; using System.Threading; namespace JawBreaker { [Serializable] class ScoreBoardLoader { private Jawbreaker jawbreaker; private String sSecretKey = @"?B?n?Mj?"; private String scoreBoardFileLocation = ""; private bool keepScoreBoardUpdated = true; private int intTimer = 180000; public ScoreBoardLoader(Jawbreaker jawbreaker, String scoreBoardFileLocation) { this.jawbreaker = jawbreaker; this.scoreBoardFileLocation = scoreBoardFileLocation; } // Call this function to remove the key from memory after use for security [System.Runtime.InteropServices.DllImport("KERNEL32.DLL", EntryPoint = "RtlZeroMemory")] public static extern bool ZeroMemory(IntPtr Destination, int Length); // Function to Generate a 64 bits Key. private string GenerateKey() { // Create an instance of Symetric Algorithm. Key and IV is generated automatically. DESCryptoServiceProvider desCrypto = (DESCryptoServiceProvider)DESCryptoServiceProvider.Create(); // Use the Automatically generated key for Encryption. return ASCIIEncoding.ASCII.GetString(desCrypto.Key); } public void writeScoreboardToFile() { DataTable tempScoreBoard = getScoreboardFromFile(); //add in the new scores to the end of the file. for (int i = 0; i < jawbreaker.Scoreboard.Rows.Count; i++) { DataRow row = tempScoreBoard.NewRow(); row.ItemArray = jawbreaker.Scoreboard.Rows[i].ItemArray; tempScoreBoard.Rows.Add(row); } //before it is written back to the file make sure we update the sync info if (jawbreaker.SyncScoreboard) { //connect to webservice, login and update all the scores that have not been synced. for (int i = 0; i < tempScoreBoard.Rows.Count; i++) { try { //check to see if that row has been synced to the server if (!Boolean.Parse(tempScoreBoard.Rows[i].ItemArray[7].ToString())) { //sync info to server //update the row to say that it has been updated object[] tempArray = tempScoreBoard.Rows[i].ItemArray; tempArray[7] = true; tempScoreBoard.Rows[i].ItemArray = tempArray; tempScoreBoard.AcceptChanges(); } } catch (Exception ex) { jawbreaker.writeErrorToLog("ERROR OCCURED DURING SYNC TO SERVER UPDATE: " + ex.Message); } } } FileStream fsEncrypted = new FileStream(scoreBoardFileLocation, FileMode.Create, FileAccess.Write); DESCryptoServiceProvider DES = new DESCryptoServiceProvider(); DES.Key = ASCIIEncoding.ASCII.GetBytes(sSecretKey); DES.IV = ASCIIEncoding.ASCII.GetBytes(sSecretKey); ICryptoTransform desencrypt = DES.CreateEncryptor(); CryptoStream cryptostream = new CryptoStream(fsEncrypted, desencrypt, CryptoStreamMode.Write); MemoryStream ms = new MemoryStream(); tempScoreBoard.WriteXml(ms, XmlWriteMode.WriteSchema); ms.Position = 0; byte[] bitarray = new byte[ms.Length]; ms.Read(bitarray, 0, bitarray.Length); cryptostream.Write(bitarray, 0, bitarray.Length); cryptostream.Close(); ms.Close(); //now the scores have been added to the file remove them from the datatable jawbreaker.Scoreboard.Rows.Clear(); } public void startPeriodicScoreboardWriteToFile() { while (keepScoreBoardUpdated) { //three minute sleep. Thread.Sleep(intTimer); writeScoreboardToFile(); } } public void stopPeriodicScoreboardWriteToFile() { keepScoreBoardUpdated = false; } public int IntTimer { get { return intTimer; } set { intTimer = value; } } public DataTable getScoreboardFromFile() { FileInfo f = new FileInfo(scoreBoardFileLocation); if (!f.Exists) { jawbreaker.writeInfoToLog("Scoreboard not there so creating new one"); return setupNewScoreBoard(); } else { DESCryptoServiceProvider DES = new DESCryptoServiceProvider(); //A 64 bit key and IV is required for this provider. //Set secret key For DES algorithm. DES.Key = ASCIIEncoding.ASCII.GetBytes(sSecretKey); //Set initialization vector. DES.IV = ASCIIEncoding.ASCII.GetBytes(sSecretKey); //Create a file stream to read the encrypted file back. FileStream fsread = new FileStream(scoreBoardFileLocation, FileMode.Open, FileAccess.Read); //Create a DES decryptor from the DES instance. ICryptoTransform desdecrypt = DES.CreateDecryptor(); //Create crypto stream set to read and do a //DES decryption transform on incoming bytes. CryptoStream cryptostreamDecr = new CryptoStream(fsread, desdecrypt, CryptoStreamMode.Read); DataTable dTable = new DataTable("scoreboard"); dTable.ReadXml(new StreamReader(cryptostreamDecr)); cryptostreamDecr.Close(); fsread.Close(); return dTable; } } public DataTable setupNewScoreBoard() { //scoreboard info into dataset DataTable scoreboard = new DataTable("scoreboard"); scoreboard.Columns.Add(new DataColumn("playername", System.Type.GetType("System.String"))); scoreboard.Columns.Add(new DataColumn("score", System.Type.GetType("System.Int32"))); scoreboard.Columns.Add(new DataColumn("ballnumber", System.Type.GetType("System.Int32"))); scoreboard.Columns.Add(new DataColumn("xsize", System.Type.GetType("System.Int32"))); scoreboard.Columns.Add(new DataColumn("ysize", System.Type.GetType("System.Int32"))); scoreboard.Columns.Add(new DataColumn("gametype", System.Type.GetType("System.String"))); scoreboard.Columns.Add(new DataColumn("date", System.Type.GetType("System.DateTime"))); scoreboard.Columns.Add(new DataColumn("synced", System.Type.GetType("System.Boolean"))); scoreboard.AcceptChanges(); return scoreboard; } private void Run() { // For additional security Pin the key. GCHandle gch = GCHandle.Alloc(sSecretKey, GCHandleType.Pinned); // Remove the Key from memory. ZeroMemory(gch.AddrOfPinnedObject(), sSecretKey.Length * 2); gch.Free(); } } }

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  • Some problems with GridView in webpart with multiple filters.

    - by NF_81
    Hello, I'm currently working on a highly configurable Database Viewer webpart for WSS 3.0 which we are going to need for several customized sharepoint sites. Sorry in advance for the large wall of text, but i fear it's necessary to recap the whole issue. As background information and to describe my problem as good as possible, I'll start by telling you what the webpart shall do: Basically the webpart contains an UpdatePanel, which contains a GridView and an SqlDataSource. The select-query the Datasource uses can be set via webbrowseable properties or received from a consumer method from another webpart. Now i wanted to add a filtering feature to the webpart, so i want a dropdownlist in the headerrow for each column that should be filterable. As the select-query is completely dynamic and i don't know at design time which columns shall be filterable, i decided to add a webbrowseable property to contain an xml-formed string with filter information. So i added the following into OnRowCreated of the gridview: void gridView_RowCreated(object sender, GridViewRowEventArgs e) { if (e.Row.RowType == DataControlRowType.Header) { for (int i = 0; i < e.Row.Cells.Count; i++) { if (e.Row.Cells[i].GetType() == typeof(DataControlFieldHeaderCell)) { string headerText = ((DataControlFieldHeaderCell)e.Row.Cells[i]).ContainingField.HeaderText; // add sorting functionality if (_allowSorting && !String.IsNullOrEmpty(headerText)) { Label l = new Label(); l.Text = headerText; l.ForeColor = Color.Blue; l.Font.Bold = true; l.ID = "Header" + i; l.Attributes["title"] = "Sort by " + headerText; l.Attributes["onmouseover"] = "this.style.cursor = 'pointer'; this.style.color = 'red'"; l.Attributes["onmouseout"] = "this.style.color = 'blue'"; l.Attributes["onclick"] = "__doPostBack('" + panel.UniqueID + "','SortBy$" + headerText + "');"; e.Row.Cells[i].Controls.Add(l); } // check if this column shall be filterable if (!String.IsNullOrEmpty(filterXmlData)) { XmlNode columnNode = GetColumnNode(headerText); if (columnNode != null) { string dataValueField = columnNode.Attributes["DataValueField"] == null ? "" : columnNode.Attributes["DataValueField"].Value; string filterQuery = columnNode.Attributes["FilterQuery"] == null ? "" : columnNode.Attributes["FilterQuery"].Value; if (!String.IsNullOrEmpty(dataValueField) && !String.IsNullOrEmpty(filterQuery)) { SqlDataSource ds = new SqlDataSource(_conStr, filterQuery); DropDownList cbx = new DropDownList(); cbx.ID = "FilterCbx" + i; cbx.Attributes["onchange"] = "__doPostBack('" + panel.UniqueID + "','SelectionChange$" + headerText + "$' + this.options[this.selectedIndex].value);"; cbx.Width = 150; cbx.DataValueField = dataValueField; cbx.DataSource = ds; cbx.DataBound += new EventHandler(cbx_DataBound); cbx.PreRender += new EventHandler(cbx_PreRender); cbx.DataBind(); e.Row.Cells[i].Controls.Add(cbx); } } } } } } } GetColumnNode() checks in the filter property, if there is a node for the current column, which contains information about the Field the DropDownList should bind to, and the query for filling in the items. In cbx_PreRender() i check ViewState and select an item in case of a postback. In cbx_DataBound() i just add tooltips to the list items as the dropdownlist has a fixed width. Previously, I used AutoPostback and SelectedIndexChanged of the DDL to filter the grid, but to my disappointment it was not always fired. Now i check __EVENTTARGET and __EVENTARGUMENT in OnLoad and call a function when the postback event was due to a selection change in a DDL: private void FilterSelectionChanged(string columnName, string selectedValue) { columnName = "[" + columnName + "]"; if (selectedValue.IndexOf("--") < 0 ) // "-- All --" selected { if (filter.ContainsKey(columnName)) filter[columnName] = "='" + selectedValue + "'"; else filter.Add(columnName, "='" + selectedValue + "'"); } else { filter.Remove(columnName); } gridView.PageIndex = 0; } "filter" is a HashTable which is stored in ViewState for persisting the filters (got this sample somewhere on the web, don't remember where). In OnPreRender of the webpart, i call a function which reads the ViewState and apply the filterExpression to the datasource if there is one. I assume i had to place it here, because if there is another postback (e.g. for sorting) the filters are not applied any more. private void ApplyGridFilter() { string args = " "; int i = 0; foreach (object key in filter.Keys) { if (i == 0) args = key.ToString() + filter[key].ToString(); else args += " AND " + key.ToString() + filter[key].ToString(); i++; } dataSource.FilterExpression = args; ViewState.Add("FilterArgs", filter); } protected override void OnPreRender(EventArgs e) { EnsureChildControls(); if (WebPartManager.DisplayMode.Name == "Edit") { errMsg = "Webpart in Edit mode..."; return; } if (useWebPartConnection == true) // get select-query from consumer webpart { if (provider != null) { dataSource.SelectCommand = provider.strQuery; } } try { int currentPageIndex = gridView.PageIndex; if (!String.IsNullOrEmpty(m_SortExpression)) { gridView.Sort("[" + m_SortExpression + "]", m_SortDirection); } gridView.PageIndex = currentPageIndex; // for some reason, the current pageindex resets after sorting ApplyGridFilter(); gridView.DataBind(); } catch (Exception ex) { Functions.ShowJavaScriptAlert(Page, ex.Message); } base.OnPreRender(e); } So i set the filterExpression and the call DataBind(). I don't know if this is ok on this late stage.. don't have a lot of asp.net experience after all. If anyone can suggest a better solution, please give me a hint. This all works great so far, except when i have two or more filters and set them to a combination that returns zero records. Bam ... gridview gone, completely - without a possiblity of changing the filters back. So i googled and found out that i have to subclass gridview in order to always show the headerrow. I found this solution and implemented it with some modifications. The headerrow get's displayed and i can change the filters even if the returned result contains no rows. But finally to my current problem: When i have two or more filters set which return zero rows, and i change back one filter to something that should return rows, the gridview remains empty (although the pager is rendered). I have to completly refresh the page to reset the filters. When debugging, i can see in the overridden CreateChildControls of the grid, that the base method indeed returns 0, but anyway... the gridView.RowCount remains 0 after databinding. Anyone have an idea what's going wrong here?

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  • actionscript3: reflect-class applied on rotationY

    - by algro
    Hi, I'm using a class which applies a visual reflection-effect to defined movieclips. I use a reflection-class from here: link to source. It works like a charm except when I apply a rotation to the movieclip. In my case the reflection is still visible but only a part of it. What am I doing wrong? How could I pass/include the rotation to the Reflection-Class ? Thanks in advance! This is how you apply the Reflection Class to your movieclip: var ref_mc:MovieClip = new MoviClip(); addChild(ref_mc); var r1:Reflect = new Reflect({mc:ref_mc, alpha:50, ratio:50,distance:0, updateTime:0,reflectionDropoff:1}); Now I apply a rotation to my movieclip: ref_mc.rotationY = 30; And Here the Reflect-Class: package com.pixelfumes.reflect{ import flash.display.MovieClip; import flash.display.DisplayObject; import flash.display.BitmapData; import flash.display.Bitmap; import flash.geom.Matrix; import flash.display.GradientType; import flash.display.SpreadMethod; import flash.utils.setInterval; import flash.utils.clearInterval; public class Reflect extends MovieClip{ //Created By Ben Pritchard of Pixelfumes 2007 //Thanks to Mim, Jasper, Jason Merrill and all the others who //have contributed to the improvement of this class //static var for the version of this class private static var VERSION:String = "4.0"; //reference to the movie clip we are reflecting private var mc:MovieClip; //the BitmapData object that will hold a visual copy of the mc private var mcBMP:BitmapData; //the BitmapData object that will hold the reflected image private var reflectionBMP:Bitmap; //the clip that will act as out gradient mask private var gradientMask_mc:MovieClip; //how often the reflection should update (if it is video or animated) private var updateInt:Number; //the size the reflection is allowed to reflect within private var bounds:Object; //the distance the reflection is vertically from the mc private var distance:Number = 0; function Reflect(args:Object){ /*the args object passes in the following variables /we set the values of our internal vars to math the args*/ //the clip being reflected mc = args.mc; //the alpha level of the reflection clip var alpha:Number = args.alpha/100; //the ratio opaque color used in the gradient mask var ratio:Number = args.ratio; //update time interval var updateTime:Number = args.updateTime; //the distance at which the reflection visually drops off at var reflectionDropoff:Number = args.reflectionDropoff; //the distance the reflection starts from the bottom of the mc var distance:Number = args.distance; //store width and height of the clip var mcHeight = mc.height; var mcWidth = mc.width; //store the bounds of the reflection bounds = new Object(); bounds.width = mcWidth; bounds.height = mcHeight; //create the BitmapData that will hold a snapshot of the movie clip mcBMP = new BitmapData(bounds.width, bounds.height, true, 0xFFFFFF); mcBMP.draw(mc); //create the BitmapData the will hold the reflection reflectionBMP = new Bitmap(mcBMP); //flip the reflection upside down reflectionBMP.scaleY = -1; //move the reflection to the bottom of the movie clip reflectionBMP.y = (bounds.height*2) + distance; //add the reflection to the movie clip's Display Stack var reflectionBMPRef:DisplayObject = mc.addChild(reflectionBMP); reflectionBMPRef.name = "reflectionBMP"; //add a blank movie clip to hold our gradient mask var gradientMaskRef:DisplayObject = mc.addChild(new MovieClip()); gradientMaskRef.name = "gradientMask_mc"; //get a reference to the movie clip - cast the DisplayObject that is returned as a MovieClip gradientMask_mc = mc.getChildByName("gradientMask_mc") as MovieClip; //set the values for the gradient fill var fillType:String = GradientType.LINEAR; var colors:Array = [0xFFFFFF, 0xFFFFFF]; var alphas:Array = [alpha, 0]; var ratios:Array = [0, ratio]; var spreadMethod:String = SpreadMethod.PAD; //create the Matrix and create the gradient box var matr:Matrix = new Matrix(); //set the height of the Matrix used for the gradient mask var matrixHeight:Number; if (reflectionDropoff<=0) { matrixHeight = bounds.height; } else { matrixHeight = bounds.height/reflectionDropoff; } matr.createGradientBox(bounds.width, matrixHeight, (90/180)*Math.PI, 0, 0); //create the gradient fill gradientMask_mc.graphics.beginGradientFill(fillType, colors, alphas, ratios, matr, spreadMethod); gradientMask_mc.graphics.drawRect(0,0,bounds.width,bounds.height); //position the mask over the reflection clip gradientMask_mc.y = mc.getChildByName("reflectionBMP").y - mc.getChildByName("reflectionBMP").height; //cache clip as a bitmap so that the gradient mask will function gradientMask_mc.cacheAsBitmap = true; mc.getChildByName("reflectionBMP").cacheAsBitmap = true; //set the mask for the reflection as the gradient mask mc.getChildByName("reflectionBMP").mask = gradientMask_mc; //if we are updating the reflection for a video or animation do so here if(updateTime > -1){ updateInt = setInterval(update, updateTime, mc); } } public function setBounds(w:Number,h:Number):void{ //allows the user to set the area that the reflection is allowed //this is useful for clips that move within themselves bounds.width = w; bounds.height = h; gradientMask_mc.width = bounds.width; redrawBMP(mc); } public function redrawBMP(mc:MovieClip):void { // redraws the bitmap reflection - Mim Gamiet [2006] mcBMP.dispose(); mcBMP = new BitmapData(bounds.width, bounds.height, true, 0xFFFFFF); mcBMP.draw(mc); } private function update(mc):void { //updates the reflection to visually match the movie clip mcBMP = new BitmapData(bounds.width, bounds.height, true, 0xFFFFFF); mcBMP.draw(mc); reflectionBMP.bitmapData = mcBMP; } public function destroy():void{ //provides a method to remove the reflection mc.removeChild(mc.getChildByName("reflectionBMP")); reflectionBMP = null; mcBMP.dispose(); clearInterval(updateInt); mc.removeChild(mc.getChildByName("gradientMask_mc")); } } }

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  • Ninject.ActivationException: Error activating IMainLicense

    - by Stefan Karlsson
    Im don't know fully how Ninject works thats wye i ask this question here to figure out whats wrong. If i create a empty constructor in ClaimsSecurityService it gets hit. This is my error: Error activating IMainLicense No matching bindings are available, and the type is not self-bindable. Activation path: 3) Injection of dependency IMainLicense into parameter mainLicenses of constructor of type ClaimsSecurityService 2) Injection of dependency ISecurityService into parameter securityService of constructor of type AccountController 1) Request for AccountController Stack: Ninject.KernelBase.Resolve(IRequest request) +474 Ninject.Planning.Targets.Target`1.GetValue(Type service, IContext parent) +153 Ninject.Planning.Targets.Target`1.ResolveWithin(IContext parent) +747 Ninject.Activation.Providers.StandardProvider.GetValue(IContext context, ITarget target) +269 Ninject.Activation.Providers.<>c__DisplayClass4.<Create>b__2(ITarget target) +69 System.Linq.WhereSelectArrayIterator`2.MoveNext() +66 System.Linq.Buffer`1..ctor(IEnumerable`1 source) +216 System.Linq.Enumerable.ToArray(IEnumerable`1 source) +77 Ninject.Activation.Providers.StandardProvider.Create(IContext context) +847 Ninject.Activation.Context.ResolveInternal(Object scope) +218 Ninject.Activation.Context.Resolve() +277 Ninject.<>c__DisplayClass15.<Resolve>b__f(IBinding binding) +86 System.Linq.WhereSelectEnumerableIterator`2.MoveNext() +145 System.Linq.Enumerable.SingleOrDefault(IEnumerable`1 source) +4059897 Ninject.Planning.Targets.Target`1.GetValue(Type service, IContext parent) +169 Ninject.Planning.Targets.Target`1.ResolveWithin(IContext parent) +747 Ninject.Activation.Providers.StandardProvider.GetValue(IContext context, ITarget target) +269 Ninject.Activation.Providers.<>c__DisplayClass4.<Create>b__2(ITarget target) +69 System.Linq.WhereSelectArrayIterator`2.MoveNext() +66 System.Linq.Buffer`1..ctor(IEnumerable`1 source) +216 System.Linq.Enumerable.ToArray(IEnumerable`1 source) +77 Ninject.Activation.Providers.StandardProvider.Create(IContext context) +847 Ninject.Activation.Context.ResolveInternal(Object scope) +218 Ninject.Activation.Context.Resolve() +277 Ninject.<>c__DisplayClass15.<Resolve>b__f(IBinding binding) +86 System.Linq.WhereSelectEnumerableIterator`2.MoveNext() +145 System.Linq.Enumerable.SingleOrDefault(IEnumerable`1 source) +4059897 Ninject.Web.Mvc.NinjectDependencyResolver.GetService(Type serviceType) +145 System.Web.Mvc.DefaultControllerActivator.Create(RequestContext requestContext, Type controllerType) +87 [InvalidOperationException: An error occurred when trying to create a controller of type 'Successful.Struct.Web.Controllers.AccountController'. Make sure that the controller has a parameterless public constructor.] System.Web.Mvc.DefaultControllerActivator.Create(RequestContext requestContext, Type controllerType) +247 System.Web.Mvc.DefaultControllerFactory.GetControllerInstance(RequestContext requestContext, Type controllerType) +438 System.Web.Mvc.DefaultControllerFactory.CreateController(RequestContext requestContext, String controllerName) +257 System.Web.Mvc.MvcHandler.ProcessRequestInit(HttpContextBase httpContext, IController& controller, IControllerFactory& factory) +326 System.Web.Mvc.MvcHandler.BeginProcessRequest(HttpContextBase httpContext, AsyncCallback callback, Object state) +157 System.Web.Mvc.MvcHandler.BeginProcessRequest(HttpContext httpContext, AsyncCallback callback, Object state) +88 System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.BeginProcessRequest(HttpContext context, AsyncCallback cb, Object extraData) +50 System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +301 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155 Account controller: public class AccountController : Controller { private readonly ISecurityService _securityService; public AccountController(ISecurityService securityService) { _securityService = securityService; } // // GET: /Account/Login [AllowAnonymous] public ActionResult Login(string returnUrl) { ViewBag.ReturnUrl = returnUrl; return View(); } } NinjectWebCommon: using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Http; using System.Web.Http.Dependencies; using Microsoft.Web.Infrastructure.DynamicModuleHelper; using Ninject; using Ninject.Extensions.Conventions; using Ninject.Parameters; using Ninject.Syntax; using Ninject.Web.Common; using Successful.Struct.Web; [assembly: WebActivator.PreApplicationStartMethod(typeof(NinjectWebCommon), "Start")] [assembly: WebActivator.ApplicationShutdownMethodAttribute(typeof(NinjectWebCommon), "Stop")] namespace Successful.Struct.Web { public static class NinjectWebCommon { private static readonly Bootstrapper Bootstrapper = new Bootstrapper(); /// <summary> /// Starts the application /// </summary> public static void Start() { DynamicModuleUtility.RegisterModule(typeof(OnePerRequestHttpModule)); DynamicModuleUtility.RegisterModule(typeof(NinjectHttpModule)); Bootstrapper.Initialize(CreateKernel); } /// <summary> /// Stops the application. /// </summary> public static void Stop() { Bootstrapper.ShutDown(); } /// <summary> /// Creates the kernel that will manage your application. /// </summary> /// <returns>The created kernel.</returns> private static IKernel CreateKernel() { var kernel = new StandardKernel(); kernel.Bind<Func<IKernel>>().ToMethod(ctx => () => new Bootstrapper().Kernel); kernel.Bind<IHttpModule>().To<HttpApplicationInitializationHttpModule>(); kernel.Load("Successful*.dll"); kernel.Bind(x => x.FromAssembliesMatching("Successful*.dll") .SelectAllClasses() .BindAllInterfaces() ); GlobalConfiguration.Configuration.DependencyResolver = new NinjectResolver(kernel); RegisterServices(kernel); return kernel; } /// <summary> /// Load your modules or register your services here! /// </summary> /// <param name="kernel">The kernel.</param> private static void RegisterServices(IKernel kernel) { } } public class NinjectResolver : NinjectScope, IDependencyResolver { private readonly IKernel _kernel; public NinjectResolver(IKernel kernel) : base(kernel) { _kernel = kernel; } public IDependencyScope BeginScope() { return new NinjectScope(_kernel.BeginBlock()); } } public class NinjectScope : IDependencyScope { protected IResolutionRoot ResolutionRoot; public NinjectScope(IResolutionRoot kernel) { ResolutionRoot = kernel; } public object GetService(Type serviceType) { var request = ResolutionRoot.CreateRequest(serviceType, null, new Parameter[0], true, true); return ResolutionRoot.Resolve(request).SingleOrDefault(); } public IEnumerable<object> GetServices(Type serviceType) { var request = ResolutionRoot.CreateRequest(serviceType, null, new Parameter[0], true, true); return ResolutionRoot.Resolve(request).ToList(); } public void Dispose() { var disposable = (IDisposable)ResolutionRoot; if (disposable != null) disposable.Dispose(); ResolutionRoot = null; } } } ClaimsSecurityService: public class ClaimsSecurityService : ISecurityService { private const string AscClaimsIdType = "http://schemas.microsoft.com/accesscontrolservice/2010/07/claims/identityprovider"; private const string SuccessfulStructWebNamespace = "Successful.Struct.Web"; private readonly IMainLicense _mainLicenses; private readonly ICompany _companys; private readonly IAuthTokenService _authService; [Inject] public IApplicationContext ApplicationContext { get; set; } [Inject] public ILogger<LocationService> Logger { get; set; } public ClaimsSecurityService(IMainLicense mainLicenses, ICompany companys, IAuthTokenService authService) { _mainLicenses = mainLicenses; _companys = companys; _authService = authService; } }

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  • how to update database table in sqlite3 iphone

    - by Ajeet Kumar Yadav
    Hi I am new in Iphone i am developing application that is use database but i am face problem. In My application I am using table view. I am fetch the value from database in the table view this is done after that we also insert value throw text field in that table of database and display that value in table view.I am also use another table in database table name is Alootikki the value of table alootikki is display in other table view in application and user want to add this table alootikki value in first table of database and display that value in table view when we do this value is display only in the table view this is not write in the database table. when value is display and user want to add other data throw text field then only that add value is show first value is remove from table view. I am not able to solve this plz help me. The code is given bellow for database -(void)Data1 { //////databaseName = @"dataa.sqlite"; databaseName = @"Recipe1.sqlite"; NSArray *documentPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDir = [documentPaths objectAtIndex:0]; databasePath =[documentsDir stringByAppendingPathComponent:databaseName]; [self checkAndCreateDatabase]; list1 = [[NSMutableArray alloc] init]; sqlite3 *database; if (sqlite3_open([databasePath UTF8String], &database) == SQLITE_OK) { if(addStmt == nil) { ////////////const char *sql = "insert into Dataa(item) Values(?)"; const char *sql = " insert into Slist(Incredients ) Values(?)"; if(sqlite3_prepare_v2(database, sql, -1, &addStmt, NULL) != SQLITE_OK) NSAssert1(0, @"Error while creating add statement. '%s'", sqlite3_errmsg(database)); } sqlite3_bind_text(addStmt, 1, [i UTF8String], -1, SQLITE_TRANSIENT); //sqlite3_bind_int(addStmt,1,i); // sqlite3_bind_text(addStmt, 1, [coffeeName UTF8String], -1, SQLITE_TRANSIENT); // sqlite3_bind_double(addStmt, 2, [price doubleValue]); if(SQLITE_DONE != sqlite3_step(addStmt)) NSAssert1(0, @"Error while inserting data. '%s'", sqlite3_errmsg(database)); else //SQLite provides a method to get the last primary key inserted by using sqlite3_last_insert_rowid coffeeID = sqlite3_last_insert_rowid(database); //Reset the add statement. sqlite3_reset(addStmt); // sqlite3_clear_bindings(detailStmt); //} } sqlite3_finalize(addStmt); addStmt = nil; sqlite3_close(database); } -(void)sopinglist { databaseName= @"Recipe1.sqlite"; NSArray *documentPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDir = [documentPaths objectAtIndex:0]; databasePath =[documentsDir stringByAppendingPathComponent:databaseName]; [self checkAndCreateDatabase]; list1 = [[NSMutableArray alloc] init]; sqlite3 *database; if (sqlite3_open([databasePath UTF8String], &database) == SQLITE_OK) { if(addStmt == nil) { ///////////const char *sql = "insert into Dataa(item) Values(?)"; const char *sql = " insert into Slist(Incredients,Recipename,foodtype ) Values(?,?,?)"; ///////////// const char *sql =" Update Slist ( Incredients, Recipename,foodtype) Values(?,?,?)"; if(sqlite3_prepare_v2(database, sql, -1, &addStmt, NULL) != SQLITE_OK) NSAssert1(0, @"Error while creating add statement. '%s'", sqlite3_errmsg(database)); } /////for( NSString * j in k) sqlite3_bind_text(addStmt, 1, [k UTF8String], -1, SQLITE_TRANSIENT); //sqlite3_bind_int(addStmt,1,i); // sqlite3_bind_text(addStmt, 1, [coffeeName UTF8String], -1, SQLITE_TRANSIENT); // sqlite3_bind_double(addStmt, 2, [price doubleValue]); if(SQLITE_DONE != sqlite3_step(addStmt)) NSAssert1(0, @"Error while inserting data. '%s'", sqlite3_errmsg(database)); else //SQLite provides a method to get the last primary key inserted by using sqlite3_last_insert_rowid coffeeID = sqlite3_last_insert_rowid(database); //Reset the add statement. sqlite3_reset(addStmt); // sqlite3_clear_bindings(detailStmt); //} } sqlite3_finalize(addStmt); addStmt = nil; sqlite3_close(database); } -(void)Data { ////////////////databaseName = @"dataa.sqlite"; databaseName = @"Recipe1.sqlite"; NSArray *documentPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDir = [documentPaths objectAtIndex:0]; databasePath =[documentsDir stringByAppendingPathComponent:databaseName]; [self checkAndCreateDatabase]; list1 = [[NSMutableArray alloc] init]; sqlite3 *database; if (sqlite3_open([databasePath UTF8String], &database) == SQLITE_OK) { if(detailStmt == nil) { const char *sql = "Select * from Slist "; if(sqlite3_prepare_v2(database, sql, -1, &detailStmt, NULL) == SQLITE_OK) { //NSLog(@"Hiiiiiii"); //sqlite3_bind_text(detailStmt, 1, [t1 UTF8String], -1, SQLITE_TRANSIENT); //sqlite3_bind_text(detailStmt, 2, [t2 UTF8String], -2, SQLITE_TRANSIENT); //sqlite3_bind_int(detailStmt, 3, t3); while(sqlite3_step(detailStmt) == SQLITE_ROW) { NSLog(@"Helllloooooo"); //NSString *item= [NSString stringWithUTF8String:(char *)sqlite3_column_text(detailStmt, 0)]; NSString *item= [NSString stringWithUTF8String:(char *)sqlite3_column_text(detailStmt, 0)]; char *str=( char*)sqlite3_column_text(detailStmt, 0); if( str) { item = [ NSString stringWithUTF8String:str ]; } else { item= @""; } //+ (NSString*)stringWithCharsIfNotNull: (char*)item /// { // if ( item == NULL ) // return nil; //else // return [[NSString stringWithUTF8String: item] //stringByTrimmingCharactersInSet: [NSCharacterSet whitespaceAndNewlineCharacterSet]]; //} //NSString *fame= [NSString stringWithUTF8String:(char *)sqlite3_column_text(detailStmt, 1)]; //NSString *cinemax = [NSString stringWithUTF8String:(char *)sqlite3_column_text(detailStmt, 2)]; //NSString *big= [NSString stringWithUTF8String:(char *)sqlite3_column_text(detailStmt, 3)]; //pvr1 = pvr; item1=item; //NSLog(@"%@",item1); data = [[NSMutableArray alloc] init]; list *animal=[[list alloc] initWithName:item1]; // Add the animal object to the animals Array [list1 addObject:animal]; //[list1 addObject:item]; } sqlite3_reset(detailStmt); } sqlite3_finalize(detailStmt); // sqlite3_clear_bindings(detailStmt); } } detailStmt = nil; sqlite3_close(database); } (void)recpies { /////////////////////databaseName = @"Data.sqlite"; databaseName = @"Recipe1.sqlite"; NSArray *documentPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDir = [documentPaths objectAtIndex:0]; databasePath =[documentsDir stringByAppendingPathComponent:databaseName]; [self checkAndCreateDatabase]; list1 = [[NSMutableArray alloc] init]; sqlite3 *database; if (sqlite3_open([databasePath UTF8String], &database) == SQLITE_OK) { if(detailStmt == nil) { //////const char *sql = "Select * from Dataa"; const char *sql ="select *from alootikki"; if(sqlite3_prepare_v2(database, sql, -1, &detailStmt, NULL) == SQLITE_OK) { //NSLog(@"Hiiiiiii"); //sqlite3_bind_text(detailStmt, 1, [t1 UTF8String], -1, SQLITE_TRANSIENT); //sqlite3_bind_text(detailStmt, 2, [t2 UTF8String], -2, SQLITE_TRANSIENT); //sqlite3_bind_int(detailStmt, 3, t3); while(sqlite3_step(detailStmt) == SQLITE_ROW) { //NSLog(@"Helllloooooo"); //NSString *item= [NSString stringWithUTF8String:(char *)sqlite3_column_text(detailStmt, 0)]; NSString *item= [NSString stringWithUTF8String:(char *)sqlite3_column_text(detailStmt, 0)]; char *str=( char*)sqlite3_column_text(detailStmt, 0); if( str) { item = [ NSString stringWithUTF8String:str ]; } else { item= @""; } //NSString *fame= [NSString stringWithUTF8String:(char *)sqlite3_column_text(detailStmt, 1)]; //NSString *cinemax = [NSString stringWithUTF8String:(char *)sqlite3_column_text(detailStmt, 2)]; //NSString *big= [NSString stringWithUTF8String:(char *)sqlite3_column_text(detailStmt, 3)]; //pvr1 = pvr; item1=item; //NSLog(@"%@",item1); data = [[NSMutableArray alloc] init]; list *animal=[[list alloc] initWithName:item1]; // Add the animal object to the animals Array [list1 addObject:animal]; //[list1 addObject:item]; } sqlite3_reset(detailStmt); } sqlite3_finalize(detailStmt); // sqlite3_clear_bindings(detailStmt); } } detailStmt = nil; sqlite3_close(database); }

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  • Java, server client TCP communication ends with RST

    - by Senne
    I'm trying to figure out if this is normal. Because without errors, a connection should be terminated by: FIN -> <- ACK <- FIN ACK -> I get this at the end of a TCP connection (over SSL, but i also get it with non-encrypted): From To 1494 server client TCP search-agent > 59185 [PSH, ACK] Seq=25974 Ack=49460 Win=63784 Len=50 1495 client server TCP 59185 > search-agent [ACK] Seq=49460 Ack=26024 Win=63565 Len=0 1496 client server TCP 59185 > search-agent [PSH, ACK] Seq=49460 Ack=26024 Win=63565 Len=23 1497 client server TCP 59185 > search-agent [FIN, ACK] Seq=49483 Ack=26024 Win=63565 Len=0 1498 server client TCP search-agent > 59185 [PSH, ACK] Seq=26024 Ack=49484 Win=63784 Len=23 1499 client server TCP 59185 > search-agent [RST, ACK] Seq=49484 Ack=26047 Win=0 Len=0 The client exits normally and reaches socket.close, shouldn't then the connection be shut down normally, without a reset? I can't find anything about the TCP streams of java on google... Here is my code: Server: package Security; import java.io.*; import java.net.*; import javax.net.ServerSocketFactory; import javax.net.ssl.*; import java.util.*; public class SSLDemoServer { private static ServerSocket serverSocket; private static final int PORT = 1234; public static void main(String[] args) throws IOException { int received = 0; String returned; ObjectInputStream input = null; PrintWriter output = null; Socket client; System.setProperty("javax.net.ssl.keyStore", "key.keystore"); System.setProperty("javax.net.ssl.keyStorePassword", "vwpolo"); System.setProperty("javax.net.ssl.trustStore", "key.keystore"); System.setProperty("javax.net.ssl.trustStorePassword", "vwpolo"); try { System.out.println("Trying to set up server ..."); ServerSocketFactory factory = SSLServerSocketFactory.getDefault(); serverSocket = factory.createServerSocket(PORT); System.out.println("Server started!\n"); } catch (IOException ioEx) { System.out.println("Unable to set up port!"); ioEx.printStackTrace(); System.exit(1); } while(true) { client = serverSocket.accept(); System.out.println("Client trying to connect..."); try { System.out.println("Trying to create inputstream..."); input = new ObjectInputStream(client.getInputStream()); System.out.println("Trying to create outputstream..."); output = new PrintWriter(client.getOutputStream(), true); System.out.println("Client successfully connected!"); while( true ) { received = input.readInt(); returned = Integer.toHexString(received); System.out.print(" " + received); output.println(returned.toUpperCase()); } } catch(SSLException sslEx) { System.out.println("Connection failed! (non-SSL connection?)\n"); client.close(); continue; } catch(EOFException eofEx) { System.out.println("\nEnd of client data.\n"); } catch(IOException ioEx) { System.out.println("I/O problem! (correct inputstream?)"); } try { input.close(); output.close(); } catch (Exception e) { } client.close(); System.out.println("Client closed.\n"); } } } Client: package Security; import java.io.*; import java.net.*; import javax.net.ssl.*; import java.util.*; public class SSLDemoClient { private static InetAddress host; private static final int PORT = 1234; public static void main(String[] args) { System.setProperty("javax.net.ssl.keyStore", "key.keystore"); System.setProperty("javax.net.ssl.keyStorePassword", "vwpolo"); System.setProperty("javax.net.ssl.trustStore", "key.keystore"); System.setProperty("javax.net.ssl.trustStorePassword", "vwpolo"); System.out.println("\nCreating SSL socket ..."); SSLSocket socket = null; try { host = InetAddress.getByName("192.168.56.101"); SSLSocketFactory factory = (SSLSocketFactory) SSLSocketFactory.getDefault(); socket = (SSLSocket) factory.createSocket(host, PORT); socket.startHandshake(); } catch(UnknownHostException uhEx) { System.out.println("\nHost ID not found!\n"); System.exit(1); } catch(SSLException sslEx) { System.out.println("\nHandshaking unsuccessful ..."); System.exit(1); } catch (IOException e) { e.printStackTrace(); } System.out.println("\nHandshaking succeeded ...\n"); SSLClientThread client = new SSLClientThread(socket); SSLReceiverThread receiver = new SSLReceiverThread(socket); client.start(); receiver.start(); try { client.join(); receiver.join(); System.out.println("Trying to close..."); socket.close(); } catch(InterruptedException iEx) { iEx.printStackTrace(); } catch(IOException ioEx) { ioEx.printStackTrace(); } System.out.println("\nClient finished."); } } class SSLClientThread extends Thread { private SSLSocket socket; public SSLClientThread(SSLSocket s) { socket = s; } public void run() { try { ObjectOutputStream output = new ObjectOutputStream(socket.getOutputStream()); for( int i = 1; i < 1025; i++) { output.writeInt(i); sleep(10); output.flush(); } output.flush(); sleep(1000); output.close(); } catch(IOException ioEx) { System.out.println("Socket closed or unable to open socket."); } catch(InterruptedException iEx) { iEx.printStackTrace(); } } } class SSLReceiverThread extends Thread { private SSLSocket socket; public SSLReceiverThread(SSLSocket s) { socket = s; } public void run() { String response = null; BufferedReader input = null; try { input = new BufferedReader( new InputStreamReader(socket.getInputStream())); try { response = input.readLine(); while(!response.equals(null)) { System.out.print(response + " "); response = input.readLine(); } } catch(Exception e) { System.out.println("\nEnd of server data.\n"); } input.close(); } catch(IOException ioEx) { ioEx.printStackTrace(); } } }

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  • Storage model for various user setting and attributes in database?

    - by dvd
    I'm currently trying to upgrade a user management system for one web application. This web application is used to provide remote access to various networking equipment for educational purposes. All equipment is assigned to various pods, which users can book for periods of time. The current system is very simple - just 2 user types: administrators and students. All their security and other attributes are mostly hardcoded. I want to change this to something like the following model: user <-- (1..n)profile <--- (1..n) attributes. I.e. user can be assigned several profiles and each profile can have multiple attributes. At runtime all profiles and attributes are merged into single active profile. Some examples of attributes i'm planning to implement: EXPIRATION_DATE - single value, value type: date, specifies when user account will expire; ACCESS_POD - single value, value type: ref to object of Pod class, specifies which pod the user is allowed to book, user profile can have multiple such attributes with different values; TIME_QUOTA - single value, value type: integer, specifies maximum length of time for which student can reserve equipment. CREDIT_CHARGING - multi valued, specifies how much credits will be assigned to user over period of time. (Reservation of devices will cost credits, which will regenerate over time); Security permissions and user preferences can end up as profile or user attributes too: i.e CAN_CREATE_USERS, CAN_POST_NEWS, CAN_EDIT_DEVICES, FONT_SIZE, etc.. This way i could have, for example: students of course A will have profiles STUDENT (with basic attributes) and PROFILE A (wich grants acces to pod A). Students of course B will have profiles: STUDENT, PROFILE B(wich grants to pod B and have increased time quotas). I'm using Spring and Hibernate frameworks for this application and MySQL for database. For this web application i would like to stay within boundaries of these tools. The problem is, that i can't figure out how to best represent all these attributes in database. I also want to create some kind of unified way of retrieveing these attributes and their values. Here is the model i've come up with. Base classes. public abstract class Attribute{ private Long id; Attribute() {} abstract public String getName(); public Long getId() {return id; } void setId(Long id) {this.id = id;} } public abstract class SimpleAttribute extends Attribute{ public abstract Serializable getValue(); abstract void setValue(Serializable s); @Override public boolean equals(Object obj) { ... } @Override public int hashCode() { ... } } Simple attributes can have only one value of any type (including object and enum). Here are more specific attributes: public abstract class IntAttribute extends SimpleAttribute { private Integer value; public Integer getValue() { return value; } void setValue(Integer value) { this.value = value;} void setValue(Serializable s) { setValue((Integer)s); } } public class MaxOrdersAttribute extends IntAttribute { public String getName() { return "Maximum outstanding orders"; } } public final class CreditRateAttribute extends IntAttribute { public String getName() { return "Credit Regeneration Rate"; } } All attributes stored stored using Hibenate variant "table per class hierarchy". Mapping: <class name="ru.mirea.rea.model.abac.Attribute" table="ATTRIBUTES" abstract="true" > <id name="id" column="id"> <generator class="increment" /> </id> <discriminator column="attributeType" type="string"/> <subclass name="ru.mirea.rea.model.abac.SimpleAttribute" abstract="true"> <subclass name="ru.mirea.rea.model.abac.IntAttribute" abstract="true" > <property name="value" column="intVal" type="integer"/> <subclass name="ru.mirea.rea.model.abac.CreditRateAttribute" discriminator-value="CreditRate" /> <subclass name="ru.mirea.rea.model.abac.MaxOrdersAttribute" discriminator-value="MaxOrders" /> </subclass> <subclass name="ru.mirea.rea.model.abac.DateAttribute" abstract="true" > <property name="value" column="dateVal" type="timestamp"/> <subclass name="ru.mirea.rea.model.abac.ExpirationDateAttribute" discriminator-value="ExpirationDate" /> </subclass> <subclass name="ru.mirea.rea.model.abac.PodAttribute" abstract="true" > <many-to-one name="value" column="podVal" class="ru.mirea.rea.model.pods.Pod"/> <subclass name="ru.mirea.rea.model.abac.PodAccessAttribute" discriminator-value="PodAccess" lazy="false"/> </subclass> <subclass name="ru.mirea.rea.model.abac.SecurityPermissionAttribute" discriminator-value="SecurityPermission" lazy="false"> <property name="value" column="spVal" type="ru.mirea.rea.db.hibernate.customTypes.SecurityPermissionType"/> </subclass> </subclass> </class> SecurityPermissionAttribute uses enumeration of various permissions as it's value. Several types of attributes imlement GrantedAuthority interface and can be used with Spring Security for authentication and authorization. Attributes can be created like this: public final class AttributeManager { public <T extends SimpleAttribute> T createSimpleAttribute(Class<T> c, Serializable value) { Session session = HibernateUtil.getCurrentSession(); T att = null; ... att = c.newInstance(); att.setValue(value); session.save(att); session.flush(); ... return att; } public <T extends SimpleAttribute> List<T> findSimpleAttributes(Class<T> c) { List<T> result = new ArrayList<T>(); Session session = HibernateUtil.getCurrentSession(); List<T> temp = session.createCriteria(c).list(); result.addAll(temp); return result; } } And retrieved through User Profiles to which they are assigned. I do not expect that there would be very large amount of rows in the ATTRIBUTES table, but are there any serious drawbacks of such design?

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  • How to Configure Parameter Interceptors ?

    - by jyo
    Hi In my Struts2 applicaion I have a Jsp page with some feilds , like this <s:form action="customer.action" method="post" validate="false"> <s:textfield name="cust.fname" key="fname" size="20" /> <s:textfield name="cust.lname" key="lname" size="20" /> <s:textfield name="cust.title" key="title" size="20" /> <s:submit method="addCustomer" key="label.submit" align="center" /> </s:form> I have created a Bean Class For that public class Customer { private String fname; private String lname; private String title; public String getFname() { return fname; } public void setFname(String fname) { this.fname = fname; } public String getLname() { return lname; } public void setLname(String lname) { this.lname = lname; } public String getAddress() { return address; } public void setAddress(String address) { this.address = address; } } an Action Class public class CustomerAction extends ActionSupport { private Customer cust; public Customer getCust() { return cust; } public void setCust(Customer cust) { this.cust = cust; } public String addCustomer() { return "success"; } } When i hit the submit button i m getting exception like this com.opensymphony.xwork2.interceptor.ParametersInterceptor setParameters SEVERE: ParametersInterceptor - [setParameters]: Unexpected Exception catched: Error setting expression 'cust.address' with value '[Ljava.lang.String;@153113d' SEVERE: ParametersInterceptor - [setParameters]: Unexpected Exception catched: Error setting expression 'cust.fname' with value '[Ljava.lang.String;@18c8aea' 17 Jun, 2010 3:37:36 PM com.opensymphony.xwork2.interceptor.ParametersInterceptor setParameters SEVERE: ParametersInterceptor - [setParameters]: Unexpected Exception catched: Error setting expression 'cust.lname' with value '[Ljava.lang.String;@1f42731' 17 Jun, 2010 3:37:36 PM com.opensymphony.xwork2.interceptor.ParametersInterceptor setParameters WARNING: Caught an exception while evaluating expression 'cust.lname' against value stack Caught an Ognl exception while getting property cust - Class: ognl.OgnlRuntime File: OgnlRuntime.java Method: getMethodValue Line: 935 - ognl/OgnlRuntime.java:935:-1 at com.opensymphony.xwork2.util.CompoundRootAccessor.getProperty(CompoundRootAccessor.java:106) at ognl.OgnlRuntime.getProperty(OgnlRuntime.java:1643) at ognl.ASTProperty.getValueBody(ASTProperty.java:92) at ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:170) at ognl.SimpleNode.getValue(SimpleNode.java:210) at ognl.ASTChain.getValueBody(ASTChain.java:109) at ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:170) at ognl.SimpleNode.getValue(SimpleNode.java:210) at ognl.Ognl.getValue(Ognl.java:333) at com.opensymphony.xwork2.util.OgnlUtil.getValue(OgnlUtil.java:194) at com.opensymphony.xwork2.util.OgnlValueStack.findValue(OgnlValueStack.java:238) at org.apache.struts2.components.Property.start(Property.java:136) at org.apache.struts2.views.jsp.ComponentTagSupport.doStartTag(ComponentTagSupport.java:54) at org.apache.jsp.pages.SuccessCustomer_jsp._jspx_meth_s_005fproperty_005f1(SuccessCustomer_jsp.java:139) at org.apache.jsp.pages.SuccessCustomer_jsp._jspService(SuccessCustomer_jsp.java:72) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:377) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646) at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436) at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374) at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302) at org.apache.struts2.dispatcher.ServletDispatcherResult.doExecute(ServletDispatcherResult.java:139) at org.apache.struts2.dispatcher.StrutsResultSupport.execute(StrutsResultSupport.java:178) at com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:343) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248) at com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:213) at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:218) at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:216) at com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:150) at org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:48) at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:218) at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:216) at com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:123) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:218) at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:216) at com.opensymphony.xwork2.interceptor.ParametersInterceptor.intercept(ParametersInterceptor.java:161) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:218) at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:216) at com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:105) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:218) at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:216) at org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:83) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:218) at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:216) at org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:207) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:218) at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:216) at com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:74) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:218) at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:216) at com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:127) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:218) at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:216) at org.apache.struts2.interceptor.ProfilingActivationInterceptor.intercept(ProfilingActivationInterceptor.java:107) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:218) at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:216) at org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:206) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:218) at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:216) at com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:115) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:218) at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:216) at com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:143) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:218) at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:216) at com.opensymphony.xwork2.interceptor.PrepareInterceptor.intercept(PrepareInterceptor.java:115) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:218) at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:216) at org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:170) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:218) at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:216) at com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:123) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:218) at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:216) at com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:176) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:218) at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:216) at com.opensymphony.xwork2.interceptor.ParametersInterceptor.intercept(ParametersInterceptor.java:161) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:218) at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:216) at org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:83) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:218) at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:216) at org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:50) at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:507) at org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:421) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) at java.lang.Thread.run(Thread.java:636) Caused by: ognl.OgnlException: cust [java.lang.NullPointerException] at ognl.OgnlRuntime.getMethodValue(OgnlRuntime.java:935) at ognl.ObjectPropertyAccessor.getPossibleProperty(ObjectPropertyAccessor.java:53) at ognl.ObjectPropertyAccessor.getProperty(ObjectPropertyAccessor.java:121) at com.opensymphony.xwork2.util.OgnlValueStack$ObjectAccessor.getProperty(OgnlValueStack.java:58) at ognl.OgnlRuntime.getProperty(OgnlRuntime.java:1643) at com.opensymphony.xwork2.util.CompoundRootAccessor.getProperty(CompoundRootAccessor.java:101) ... 143 more 17 Jun, 2010 3:48:55 PM com.opensymphony.xwork2.util.OgnlValueStack logLookupFailure WARNING: NOTE: Previous warning message was issued due to devMode set to true. How do i resolve this ? Thnks

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  • NoClassDefFoundError and Netty

    - by Dmytro Leonenko
    Hi. First to say I'm n00b in Java. I can understand most concepts but in my situation I want somebody to help me. I'm using JBoss Netty to handle simple http request and using MemCachedClient check existence of client ip in memcached. import org.jboss.netty.channel.ChannelHandler; import static org.jboss.netty.handler.codec.http.HttpHeaders.*; import static org.jboss.netty.handler.codec.http.HttpHeaders.Names.*; import static org.jboss.netty.handler.codec.http.HttpResponseStatus.*; import static org.jboss.netty.handler.codec.http.HttpVersion.*; import com.danga.MemCached.*; import java.util.List; import java.util.Map; import java.util.Map.Entry; import java.util.Set; import org.jboss.netty.buffer.ChannelBuffer; import org.jboss.netty.buffer.ChannelBuffers; import org.jboss.netty.channel.ChannelFuture; import org.jboss.netty.channel.ChannelFutureListener; import org.jboss.netty.channel.ChannelHandlerContext; import org.jboss.netty.channel.ExceptionEvent; import org.jboss.netty.channel.MessageEvent; import org.jboss.netty.channel.SimpleChannelUpstreamHandler; import org.jboss.netty.handler.codec.http.Cookie; import org.jboss.netty.handler.codec.http.CookieDecoder; import org.jboss.netty.handler.codec.http.CookieEncoder; import org.jboss.netty.handler.codec.http.DefaultHttpResponse; import org.jboss.netty.handler.codec.http.HttpChunk; import org.jboss.netty.handler.codec.http.HttpChunkTrailer; import org.jboss.netty.handler.codec.http.HttpRequest; import org.jboss.netty.handler.codec.http.HttpResponse; import org.jboss.netty.handler.codec.http.HttpResponseStatus; import org.jboss.netty.handler.codec.http.QueryStringDecoder; import org.jboss.netty.util.CharsetUtil; /** * @author <a href="http://www.jboss.org/netty/">The Netty Project</a> * @author Andy Taylor ([email protected]) * @author <a href="http://gleamynode.net/">Trustin Lee</a> * * @version $Rev: 2368 $, $Date: 2010-10-18 17:19:03 +0900 (Mon, 18 Oct 2010) $ */ @SuppressWarnings({"ALL"}) public class HttpRequestHandler extends SimpleChannelUpstreamHandler { private HttpRequest request; private boolean readingChunks; /** Buffer that stores the response content */ private final StringBuilder buf = new StringBuilder(); protected MemCachedClient mcc = new MemCachedClient(); private static SockIOPool poolInstance = null; static { // server list and weights String[] servers = { "lcalhost:11211" }; //Integer[] weights = { 3, 3, 2 }; Integer[] weights = {1}; // grab an instance of our connection pool SockIOPool pool = SockIOPool.getInstance(); // set the servers and the weights pool.setServers(servers); pool.setWeights(weights); // set some basic pool settings // 5 initial, 5 min, and 250 max conns // and set the max idle time for a conn // to 6 hours pool.setInitConn(5); pool.setMinConn(5); pool.setMaxConn(250); pool.setMaxIdle(21600000); //1000 * 60 * 60 * 6 // set the sleep for the maint thread // it will wake up every x seconds and // maintain the pool size pool.setMaintSleep(30); // set some TCP settings // disable nagle // set the read timeout to 3 secs // and don't set a connect timeout pool.setNagle(false); pool.setSocketTO(3000); pool.setSocketConnectTO(0); // initialize the connection pool pool.initialize(); // lets set some compression on for the client // compress anything larger than 64k //mcc.setCompressEnable(true); //mcc.setCompressThreshold(64 * 1024); } @Override public void messageReceived(ChannelHandlerContext ctx, MessageEvent e) throws Exception { HttpRequest request = this.request = (HttpRequest) e.getMessage(); if(mcc.get(request.getHeader("X-Real-Ip")) != null) { HttpResponse response = new DefaultHttpResponse(HTTP_1_1, OK); response.setHeader("X-Accel-Redirect", request.getUri()); ctx.getChannel().write(response).addListener(ChannelFutureListener.CLOSE); } else { sendError(ctx, NOT_FOUND); } } private void writeResponse(MessageEvent e) { // Decide whether to close the connection or not. boolean keepAlive = isKeepAlive(request); // Build the response object. HttpResponse response = new DefaultHttpResponse(HTTP_1_1, OK); response.setContent(ChannelBuffers.copiedBuffer(buf.toString(), CharsetUtil.UTF_8)); response.setHeader(CONTENT_TYPE, "text/plain; charset=UTF-8"); if (keepAlive) { // Add 'Content-Length' header only for a keep-alive connection. response.setHeader(CONTENT_LENGTH, response.getContent().readableBytes()); } // Encode the cookie. String cookieString = request.getHeader(COOKIE); if (cookieString != null) { CookieDecoder cookieDecoder = new CookieDecoder(); Set<Cookie> cookies = cookieDecoder.decode(cookieString); if(!cookies.isEmpty()) { // Reset the cookies if necessary. CookieEncoder cookieEncoder = new CookieEncoder(true); for (Cookie cookie : cookies) { cookieEncoder.addCookie(cookie); } response.addHeader(SET_COOKIE, cookieEncoder.encode()); } } // Write the response. ChannelFuture future = e.getChannel().write(response); // Close the non-keep-alive connection after the write operation is done. if (!keepAlive) { future.addListener(ChannelFutureListener.CLOSE); } } @Override public void exceptionCaught(ChannelHandlerContext ctx, ExceptionEvent e) throws Exception { e.getCause().printStackTrace(); e.getChannel().close(); } private void sendError(ChannelHandlerContext ctx, HttpResponseStatus status) { HttpResponse response = new DefaultHttpResponse(HTTP_1_1, status); response.setHeader(CONTENT_TYPE, "text/plain; charset=UTF-8"); response.setContent(ChannelBuffers.copiedBuffer( "Failure: " + status.toString() + "\r\n", CharsetUtil.UTF_8)); // Close the connection as soon as the error message is sent. ctx.getChannel().write(response).addListener(ChannelFutureListener.CLOSE); } } When I try to send request like http://127.0.0.1:8090/1/2/3 I'm getting java.lang.NoClassDefFoundError: com/danga/MemCached/MemCachedClient at httpClientValidator.server.HttpRequestHandler.<clinit>(HttpRequestHandler.java:66) I believe it's not related to classpath. May be it's related to context in which mcc doesn't exist. Any help appreciated EDIT: Original code http://docs.jboss.org/netty/3.2/xref/org/jboss/netty/example/http/snoop/package-summary.html I've modified some parts to fit my needs.

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  • The Clocks on USACO

    - by philip
    I submitted my code for a question on USACO titled "The Clocks". This is the link to the question: http://ace.delos.com/usacoprob2?a=wj7UqN4l7zk&S=clocks This is the output: Compiling... Compile: OK Executing... Test 1: TEST OK [0.173 secs, 13928 KB] Test 2: TEST OK [0.130 secs, 13928 KB] Test 3: TEST OK [0.583 secs, 13928 KB] Test 4: TEST OK [0.965 secs, 13928 KB] Run 5: Execution error: Your program (`clocks') used more than the allotted runtime of 1 seconds (it ended or was stopped at 1.584 seconds) when presented with test case 5. It used 13928 KB of memory. ------ Data for Run 5 ------ 6 12 12 12 12 12 12 12 12 ---------------------------- Your program printed data to stdout. Here is the data: ------------------- time:_0.40928452 ------------------- Test 5: RUNTIME 1.5841 (13928 KB) I wrote my program so that it will print out the time taken (in seconds) for the program to complete before it exits. As can be seen, it took 0.40928452 seconds before exiting. So how the heck did the runtime end up to be 1.584 seconds? What should I do about it? This is the code if it helps: import java.io.; import java.util.; class clocks { public static void main(String[] args) throws IOException { long start = System.nanoTime(); // Use BufferedReader rather than RandomAccessFile; it's much faster BufferedReader f = new BufferedReader(new FileReader("clocks.in")); // input file name goes above PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter("clocks.out"))); // Use StringTokenizer vs. readLine/split -- lots faster int[] clock = new int[9]; for (int i = 0; i < 3; i++) { StringTokenizer st = new StringTokenizer(f.readLine()); // Get line, break into tokens clock[i * 3] = Integer.parseInt(st.nextToken()); clock[i * 3 + 1] = Integer.parseInt(st.nextToken()); clock[i * 3 + 2] = Integer.parseInt(st.nextToken()); } ArrayList validCombination = new ArrayList();; for (int i = 1; true; i++) { ArrayList combination = getPossibleCombinations(i); for (int j = 0; j < combination.size(); j++) { if (tryCombination(clock, (int[]) combination.get(j))) { validCombination.add(combination.get(j)); } } if (validCombination.size() > 0) { break; } } int [] min = (int[])validCombination.get(0); if (validCombination.size() > 1){ String minS = ""; for (int i=0; i<min.length; i++) minS += min[i]; for (int i=1; i<validCombination.size(); i++){ String tempS = ""; int [] temp = (int[])validCombination.get(i); for (int j=0; j<temp.length; j++) tempS += temp[j]; if (tempS.compareTo(minS) < 0){ minS = tempS; min = temp; } } } for (int i=0; i<min.length-1; i++) out.print(min[i] + " "); out.println(min[min.length-1]); out.close(); // close the output file long end = System.nanoTime(); System.out.println("time: " + (end-start)/1000000000.0); System.exit(0); // don't omit this! } static boolean tryCombination(int[] clock, int[] steps) { int[] temp = Arrays.copyOf(clock, clock.length); for (int i = 0; i < steps.length; i++) transform(temp, steps[i]); for (int i=0; i<temp.length; i++) if (temp[i] != 12) return false; return true; } static void transform(int[] clock, int n) { if (n == 1) { int[] clocksToChange = {0, 1, 3, 4}; add3(clock, clocksToChange); } else if (n == 2) { int[] clocksToChange = {0, 1, 2}; add3(clock, clocksToChange); } else if (n == 3) { int[] clocksToChange = {1, 2, 4, 5}; add3(clock, clocksToChange); } else if (n == 4) { int[] clocksToChange = {0, 3, 6}; add3(clock, clocksToChange); } else if (n == 5) { int[] clocksToChange = {1, 3, 4, 5, 7}; add3(clock, clocksToChange); } else if (n == 6) { int[] clocksToChange = {2, 5, 8}; add3(clock, clocksToChange); } else if (n == 7) { int[] clocksToChange = {3, 4, 6, 7}; add3(clock, clocksToChange); } else if (n == 8) { int[] clocksToChange = {6, 7, 8}; add3(clock, clocksToChange); } else if (n == 9) { int[] clocksToChange = {4, 5, 7, 8}; add3(clock, clocksToChange); } } static void add3(int[] clock, int[] position) { for (int i = 0; i < position.length; i++) { if (clock[position[i]] != 12) { clock[position[i]] += 3; } else { clock[position[i]] = 3; } } } static ArrayList getPossibleCombinations(int size) { ArrayList l = new ArrayList(); int[] current = new int[size]; for (int i = 0; i < current.length; i++) { current[i] = 1; } int[] end = new int[size]; for (int i = 0; i < end.length; i++) { end[i] = 9; } l.add(Arrays.copyOf(current, size)); while (!Arrays.equals(current, end)) { incrementWithoutRepetition(current, current.length - 1); l.add(Arrays.copyOf(current, size)); } int [][] combination = new int[l.size()][size]; for (int i=0; i<l.size(); i++) combination[i] = (int[])l.get(i); return l; } static int incrementWithoutRepetition(int[] n, int index) { if (n[index] != 9) { n[index]++; return n[index]; } else { n[index] = incrementWithoutRepetition(n, index - 1); return n[index]; } } static void p(int[] n) { for (int i = 0; i < n.length; i++) { System.out.print(n[i] + " "); } System.out.println(""); } }

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  • Issue with Multiple ModalPopups, ValidationSummary and UpdatePanels

    - by Aaron Hoffman
    I am having an issue when a page contains multiple ModalPopups each containing a ValidationSummary Control. Here is the functionality I need: A user clicks a button and a Modal Popup appears with dynamic content based on the button that was clicked. (This functionality is working. Buttons are wrapped in UpdatePanels and the partial page postback calls .Show() on the ModalPopup) "Save" button in ModalPopup causes client side validation, then causes a full page postback so the entire ModalPopup disappears. (ModalPopup could disappear another way - the ModalPopup just needs to disappear after a successful save operation) If errors occur in the codebehind during Save operation, messages are added to the ValidationSummary (contained within the ModalPopup) and the ModalPopup is displayed again. When the ValidationSummary's are added to the PopupPanel's, the ModalPopups no longer display correctly after a full page postback caused by the "Save" button within the second PopupPanel. (the first panel continues to function correctly) Both PopupPanels are displayed, and neither is "Popped-Up", they are displayed in-line. Any ideas on how to solve this? Image of Error State (after "PostBack Popup2" button has been clicked) ASPX markup <asp:ScriptManager ID="ScriptManager1" runat="server"> </asp:ScriptManager> <%--********************************************************************* Popup1 *********************************************************************--%> <asp:UpdatePanel ID="Popup1ShowButtonUpdatePanel" runat="server"> <ContentTemplate> <%--This button will cause a partial page postback and pass a parameter to the Popup1ModalPopup in code behind and call its .Show() method to make it visible--%> <asp:Button ID="Popup1ShowButton" runat="server" Text="Show Popup1" OnClick="Popup1ShowButton_Click" CommandArgument="1" /> </ContentTemplate> </asp:UpdatePanel> <%--Hidden Control is used as ModalPopup's TargetControlID .Usually this is the ID of control that causes the Popup, but we want to control the modal popup from code behind --%> <asp:HiddenField ID="Popup1ModalPopupTargetControl" runat="server" /> <ajax:ModalPopupExtender ID="Popup1ModalPopup" runat="server" TargetControlID="Popup1ModalPopupTargetControl" PopupControlID="Popup1PopupControl" CancelControlID="Popup1CancelButton"> </ajax:ModalPopupExtender> <asp:Panel ID="Popup1PopupControl" runat="server" CssClass="ModalPopup" Style="width: 600px; background-color: #FFFFFF; border: solid 1px #000000;"> <%--This button causes validation and a full-page post back. Full page postback will causes the ModalPopup to be Hid. If there are errors in code behind, the code behind will add a message to the ValidationSummary, and make the ModalPopup visible again--%> <asp:Button ID="Popup1PostBackButton" runat="server" Text="PostBack Popup1" OnClick="Popup1PostBackButton_Click" />&nbsp; <asp:Button ID="Popup1CancelButton" runat="server" Text="Cancel Popup1" /> <asp:UpdatePanel ID="Popup1UpdatePanel" runat="server"> <ContentTemplate> <%--*************ISSUE HERE*************** The two ValidationSummary's are causing an issue. When the second ModalPopup's PostBack button is clicked, Both ModalPopup's become visible, but neither are "Popped-Up". If ValidationSummary's are removed, both ModalPopups Function Correctly--%> <asp:ValidationSummary ID="Popup1ValidationSummary" runat="server" /> <%--Will display dynamically passed paramter during partial page post-back--%> Popup1 Parameter:<asp:Literal ID="Popup1Parameter" runat="server"></asp:Literal><br /> </ContentTemplate> </asp:UpdatePanel> &nbsp;<br /> &nbsp;<br /> &nbsp;<br /> </asp:Panel> &nbsp;<br /> &nbsp;<br /> &nbsp;<br /> <%--********************************************************************* Popup2 *********************************************************************--%> <asp:UpdatePanel ID="Popup2ShowButtonUpdatePanel" runat="server"> <ContentTemplate> <%--This button will cause a partial page postback and pass a parameter to the Popup2ModalPopup in code behind and call its .Show() method to make it visible--%> <asp:Button ID="Popup2ShowButton" runat="server" Text="Show Popup2" OnClick="Popup2ShowButton_Click" CommandArgument="2" /> </ContentTemplate> </asp:UpdatePanel> <%--Hidden Control is used as ModalPopup's TargetControlID .Usually this is the ID of control that causes the Popup, but we want to control the modal popup from code behind --%> <asp:HiddenField ID="Popup2ModalPopupTargetControl" runat="server" /> <ajax:ModalPopupExtender ID="Popup2ModalPopup" runat="server" TargetControlID="Popup2ModalPopupTargetControl" PopupControlID="Popup2PopupControl" CancelControlID="Popup2CancelButton"> </ajax:ModalPopupExtender> <asp:Panel ID="Popup2PopupControl" runat="server" CssClass="ModalPopup" Style="width: 600px; background-color: #FFFFFF; border: solid 1px #000000;"> <%--This button causes validation and a full-page post back. Full page postback will causes the ModalPopup to be Hid. If there are errors in code behind, the code behind will add a message to the ValidationSummary, and make the ModalPopup visible again--%> <asp:Button ID="Popup2PostBackButton" runat="server" Text="PostBack Popup2" OnClick="Popup2PostBackButton_Click" />&nbsp; <asp:Button ID="Popup2CancelButton" runat="server" Text="Cancel Popup2" /> <asp:UpdatePanel ID="Popup2UpdatePanel" runat="server"> <ContentTemplate> <%--*************ISSUE HERE*************** The two ValidationSummary's are causing an issue. When the second ModalPopup's PostBack button is clicked, Both ModalPopup's become visible, but neither are "Popped-Up". If ValidationSummary's are removed, both ModalPopups Function Correctly--%> <asp:ValidationSummary ID="Popup2ValidationSummary" runat="server" /> <%--Will display dynamically passed paramter during partial page post-back--%> Popup2 Parameter:<asp:Literal ID="Popup2Parameter" runat="server"></asp:Literal><br /> </ContentTemplate> </asp:UpdatePanel> &nbsp;<br /> &nbsp;<br /> &nbsp;<br /> </asp:Panel> Code Behind protected void Popup1ShowButton_Click(object sender, EventArgs e) { Button btn = sender as Button; //Dynamically pass parameter to ModalPopup during partial page postback Popup1Parameter.Text = btn.CommandArgument; Popup1ModalPopup.Show(); } protected void Popup1PostBackButton_Click(object sender, EventArgs e) { //if there is an error, add a message to the validation summary and //show the ModalPopup again //TODO: add message to validation summary //show ModalPopup after page refresh (request/response) Popup1ModalPopup.Show(); } protected void Popup2ShowButton_Click(object sender, EventArgs e) { Button btn = sender as Button; //Dynamically pass parameter to ModalPopup during partial page postback Popup2Parameter.Text = btn.CommandArgument; Popup2ModalPopup.Show(); } protected void Popup2PostBackButton_Click(object sender, EventArgs e) { //***********After This is when the issue appears********************** //if there is an error, add a message to the validation summary and //show the ModalPopup again //TODO: add message to validation summary //show ModalPopup after page refresh (request/response) Popup2ModalPopup.Show(); }

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  • JMS MQ Connection closed in JSF 2 SessionBean

    - by veote
    I use Websphere Application Server 8 with MQ Series as Messaging Queue. When I open close the connection in sessionbean in a "postConstruct" method and I use it in another method then its closed. My Code is: import java.io.Serializable; import javax.annotation.PostConstruct; import javax.annotation.PreDestroy; import javax.annotation.Resource; import javax.faces.application.FacesMessage; import javax.faces.bean.ManagedBean; import javax.faces.bean.SessionScoped; import javax.faces.context.FacesContext; import javax.jms.JMSException; import javax.jms.Queue; import javax.jms.QueueConnection; import javax.jms.QueueConnectionFactory; import javax.jms.QueueSender; import javax.jms.QueueSession; import javax.jms.Session; import javax.jms.TextMessage; @ManagedBean @SessionScoped public class MQRequest implements Serializable { private static final long serialVersionUID = 1L; @Resource(name = "jms/wasmqtest/wasmqtest_QCF") private QueueConnectionFactory connectionFactory; @Resource(name = "jms/wasmqtest/Request_Q") private Queue requestQueue; private QueueConnection connection; private String text = ""; public void sendMessage() { System.out.println("Connection in sendMessage: \n" + connection); TextMessage msg; try { QueueSession queueSession = connection.createQueueSession(false, Session.AUTO_ACKNOWLEDGE); QueueSender sender = queueSession.createSender(requestQueue); msg = queueSession.createTextMessage(text); sender.send(msg); queueSession.close(); sender.close(); } catch (JMSException e) { // TODO Auto-generated catch block e.printStackTrace(); } text = ""; } @PostConstruct public void openConenction() { System.out.println("Open Connection"); try { connection = connectionFactory.createQueueConnection(); connection.start(); System.out.println("Connection in OpenConnectioN: \n" + connection); } catch (JMSException e) { e.printStackTrace(); } } @PreDestroy public void closeConnection() { try { System.out.println("Closing Connection"); connection.close(); } catch (JMSException e) { e.printStackTrace(); } } public void setText(String text) { this.text = text; } public String getText() { return text; } } In PostConstruct method the connection is initialized: [21.10.13 07:36:05:574 CEST] 00000025 SystemOut O Connection in OpenConnectioN: com.ibm.ejs.jms.JMSQueueConnectionHandle@36c9b1a managed connection = com.ibm.ejs.jms.JMSManagedQueueConnection@3657e8b physical connection = com.ibm.mq.jms.MQXAQueueConnection@36618b6 closed = false invalid = false restricted methods enabled = false open session handles = [] temporary queues = [] But in sendMessage() method it isnt and I get a ConnectionClosed Problem: [21.10.13 07:36:12:493 CEST] 00000025 SystemOut O Connection in sendMessage: com.ibm.ejs.jms.JMSQueueConnectionHandle@36c9b1a managed connection = null physical connection = null closed = true invalid = false restricted methods enabled = false open session handles = [] temporary queues = [] 21.10.13 07:36:12:461 CEST] 00000025 SystemErr R 15 [WebContainer : 3] INFO org.apache.bval.jsr303.ConfigurationImpl - ignoreXmlConfiguration == true [21.10.13 07:36:12:601 CEST] 00000025 SystemErr R javax.jms.IllegalStateException: Connection closed [21.10.13 07:36:12:601 CEST] 00000025 SystemErr R at com.ibm.ejs.jms.JMSConnectionHandle.checkOpen(JMSConnectionHandle.java:821) [21.10.13 07:36:12:601 CEST] 00000025 SystemErr R at com.ibm.ejs.jms.JMSQueueConnectionHandle.createQueueSession(JMSQueueConnectionHandle.java:206) [21.10.13 07:36:12:601 CEST] 00000025 SystemErr R at de.volkswagen.wasmqtest.queue.MQRequest.sendMessage(MQRequest.java:51) [21.10.13 07:36:12:601 CEST] 00000025 SystemErr R at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [21.10.13 07:36:12:601 CEST] 00000025 SystemErr R at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:60) [21.10.13 07:36:12:601 CEST] 00000025 SystemErr R at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37) [21.10.13 07:36:12:602 CEST] 00000025 SystemErr R at java.lang.reflect.Method.invoke(Method.java:611) [21.10.13 07:36:12:602 CEST] 00000025 SystemErr R at org.apache.el.parser.AstValue.invoke(AstValue.java:262) [21.10.13 07:36:12:602 CEST] 00000025 SystemErr R at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:278) [21.10.13 07:36:12:602 CEST] 00000025 SystemErr R at org.apache.myfaces.view.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:83) [21.10.13 07:36:12:602 CEST] 00000025 SystemErr R at javax.faces.component._MethodExpressionToMethodBinding.invoke(_MethodExpressionToMethodBinding.java:88) [21.10.13 07:36:12:602 CEST] 00000025 SystemErr R at org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:100) [21.10.13 07:36:12:602 CEST] 00000025 SystemErr R at javax.faces.component.UICommand.broadcast(UICommand.java:120) [21.10.13 07:36:12:602 CEST] 00000025 SystemErr R at javax.faces.component.UIViewRoot._broadcastAll(UIViewRoot.java:973) [21.10.13 07:36:12:602 CEST] 00000025 SystemErr R at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:275) [21.10.13 07:36:12:602 CEST] 00000025 SystemErr R at javax.faces.component.UIViewRoot._process(UIViewRoot.java:1285) [21.10.13 07:36:12:602 CEST] 00000025 SystemErr R at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:711) [21.10.13 07:36:12:602 CEST] 00000025 SystemErr R at org.apache.myfaces.lifecycle.InvokeApplicationExecutor.execute(InvokeApplicationExecutor.java:34) [21.10.13 07:36:12:603 CEST] 00000025 SystemErr R at org.apache.myfaces.lifecycle.LifecycleImpl.executePhase(LifecycleImpl.java:171) [21.10.13 07:36:12:603 CEST] 00000025 SystemErr R at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118) [21.10.13 07:36:12:603 CEST] 00000025 SystemErr R at javax.faces.webapp.FacesServlet.service(FacesServlet.java:189) [21.10.13 07:36:12:603 CEST] 00000025 SystemErr R at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1147) [21.10.13 07:36:12:603 CEST] 00000025 SystemErr R at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:722) [21.10.13 07:36:12:603 CEST] 00000025 SystemErr R at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:449) [21.10.13 07:36:12:603 CEST] 00000025 SystemErr R at com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.handleRequest(ServletWrapperImpl.java:178) [21.10.13 07:36:12:603 CEST] 00000025 SystemErr R at com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters(WebAppFilterManager.java:1020) [21.10.13 07:36:12:603 CEST] 00000025 SystemErr R at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3703) [21.10.13 07:36:12:603 CEST] 00000025 SystemErr R at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:304) [21.10.13 07:36:12:603 CEST] 00000025 SystemErr R at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:953) [21.10.13 07:36:12:603 CEST] 00000025 SystemErr R at com.ibm.ws.webcontainer.WSWebContainer.handleRequest(WSWebContainer.java:1655) [21.10.13 07:36:12:603 CEST] 00000025 SystemErr R at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:195) [21.10.13 07:36:12:604 CEST] 00000025 SystemErr R at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:452) [21.10.13 07:36:12:604 CEST] 00000025 SystemErr R at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:511) [21.10.13 07:36:12:604 CEST] 00000025 SystemErr R at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:305) [21.10.13 07:36:12:604 CEST] 00000025 SystemErr R at com.ibm.ws.http.channel.inbound.impl.HttpICLReadCallback.complete(HttpICLReadCallback.java:83) [21.10.13 07:36:12:604 CEST] 00000025 SystemErr R at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:165) [21.10.13 07:36:12:604 CEST] 00000025 SystemErr R at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217) [21.10.13 07:36:12:604 CEST] 00000025 SystemErr R at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161) [21.10.13 07:36:12:604 CEST] 00000025 SystemErr R at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:138) [21.10.13 07:36:12:604 CEST] 00000025 SystemErr R at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:204) [21.10.13 07:36:12:604 CEST] 00000025 SystemErr R at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:775) [21.10.13 07:36:12:604 CEST] 00000025 SystemErr R at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:905) [21.10.13 07:36:12:605 CEST] 00000025 SystemErr R at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1650) Do you have an idea why the connection is closed?

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  • Why is my simple recusive method for this game always off by 1?

    - by FrankTheTank
    I'm attempting to create a text-based version of this game: http://www.cse.nd.edu/java/SameGame.html Here is the code I have so far: #include <iostream> #include <vector> #include <ctime> class Clickomania { public: Clickomania(); std::vector<std::vector<int> > board; int move(int, int); bool isSolved(); void print(); void pushDown(); bool isValid(); }; Clickomania::Clickomania() : board(12, std::vector<int>(8,0)) { srand((unsigned)time(0)); for(int i = 0; i < 12; i++) { for(int j = 0; j < 8; j++) { int color = (rand() % 3) + 1; board[i][j] = color; } } } void Clickomania::pushDown() { for(int i = 0; i < 8; i++) { for(int j = 0; j < 12; j++) { if (board[j][i] == 0) { for(int k = j; k > 0; k--) { board[k][i] = board[k-1][i]; } board[0][i] = 0; } } } } int Clickomania::move(int row, int col) { bool match = false; int totalMatches = 0; if (row > 12 || row < 0 || col > 8 || col < 0) { return 0; } int currentColor = board[row][col]; board[row][col] = 0; if ((row + 1) < 12) { if (board[row+1][col] == currentColor) { match = true; totalMatches++; totalMatches += move(row+1, col); } } if ((row - 1) >= 0) { if (board[row-1][col] == currentColor) { match = true; totalMatches++; totalMatches += move(row-1, col); } } if ((col + 1) < 8) { if (board[row][col+1] == currentColor) { match = true; totalMatches++; totalMatches += move(row, col+1); } } if ((col - 1) >= 0) { if (board[row][col-1] == currentColor) { match = true; totalMatches++; totalMatches += move(row, col-1); } } return totalMatches; } void Clickomania::print() { for(int i = 0; i < 12; i++) { for(int j = 0; j < 8; j++) { std::cout << board[i][j]; } std::cout << "\n"; } } int main() { Clickomania game; game.print(); int row; int col; std::cout << "Enter row: "; std::cin >> row; std::cout << "Enter col: "; std::cin >> col; int numDestroyed = game.move(row,col); game.print(); std::cout << "Destroyed: " << numDestroyed << "\n"; } The method that is giving me trouble is my "move" method. This method, given a pair of coordinates, should delete all the squares at that coordinate with the same number and likewise with all the squares with the same number connected to it. If you play the link I gave above you'll see how the deletion works on a click. int Clickomania::move(int row, int col) { bool match = false; int totalMatches = 0; if (row > 12 || row < 0 || col > 8 || col < 0) { return 0; } int currentColor = board[row][col]; board[row][col] = 0; if ((row + 1) < 12) { if (board[row+1][col] == currentColor) { match = true; totalMatches++; totalMatches += move(row+1, col); } } if ((row - 1) >= 0) { if (board[row-1][col] == currentColor) { match = true; totalMatches++; totalMatches += move(row-1, col); } } if ((col + 1) < 8) { if (board[row][col+1] == currentColor) { match = true; totalMatches++; totalMatches += move(row, col+1); } } if ((col - 1) >= 0) { if (board[row][col-1] == currentColor) { match = true; totalMatches++; totalMatches += move(row, col-1); } } return totalMatches; } My move() method above works fine, as in, it will delete the appropriate "blocks" and replace them with zeros. However, the number of destroyed (value returned) is always one off (too small). I believe this is because the first call of move() isn't being counted but I don't know how to differentiate between the first call or subsequent calls in that recursive method. How can I modify my move() method so it returns the correct number of destroyed blocks?

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  • Android Uncaught Exception

    - by Agrim Asthana
    09-30 02:32:31.474: D/ddm-heap(214): Got feature list request 09-30 02:32:31.634: D/AndroidRuntime(214): Shutting down VM 09-30 02:32:31.634: W/dalvikvm(214): threadid=3: thread exiting with uncaught exception (group=0x4001b188) 09-30 02:32:31.634: E/AndroidRuntime(214): Uncaught handler: thread main exiting due to uncaught exception 09-30 02:32:31.654: E/AndroidRuntime(214): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.mjcet.mjcet/com.mjcet.mjcet.MJCET}: java.lang.ClassNotFoundException: com.mjcet.mjcet.MJCET in loader dalvik.system.PathClassLoader@44e8c820 09-30 02:32:31.654: E/AndroidRuntime(214): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2417) 09-30 02:32:31.654: E/AndroidRuntime(214): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2512) 09-30 02:32:31.654: E/AndroidRuntime(214): at android.app.ActivityThread.access$2200(ActivityThread.java:119) 09-30 02:32:31.654: E/AndroidRuntime(214): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1863) 09-30 02:32:31.654: E/AndroidRuntime(214): at android.os.Handler.dispatchMessage(Handler.java:99) 09-30 02:32:31.654: E/AndroidRuntime(214): at android.os.Looper.loop(Looper.java:123) 09-30 02:32:31.654: E/AndroidRuntime(214): at android.app.ActivityThread.main(ActivityThread.java:4363) 09-30 02:32:31.654: E/AndroidRuntime(214): at java.lang.reflect.Method.invokeNative(Native Method) 09-30 02:32:31.654: E/AndroidRuntime(214): at java.lang.reflect.Method.invoke(Method.java:521) 09-30 02:32:31.654: E/AndroidRuntime(214): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860) 09-30 02:32:31.654: E/AndroidRuntime(214): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) 09-30 02:32:31.654: E/AndroidRuntime(214): at dalvik.system.NativeStart.main(Native Method) 09-30 02:32:31.654: E/AndroidRuntime(214): Caused by: java.lang.ClassNotFoundException: com.mjcet.mjcet.MJCET in loader dalvik.system.PathClassLoader@44e8c820 09-30 02:32:31.654: E/AndroidRuntime(214): at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:243) 09-30 02:32:31.654: E/AndroidRuntime(214): at java.lang.ClassLoader.loadClass(ClassLoader.java:573) 09-30 02:32:31.654: E/AndroidRuntime(214): at java.lang.ClassLoader.loadClass(ClassLoader.java:532) 09-30 02:32:31.654: E/AndroidRuntime(214): at android.app.Instrumentation.newActivity(Instrumentation.java:1021) 09-30 02:32:31.654: E/AndroidRuntime(214): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2409) 09-30 02:32:31.654: E/AndroidRuntime(214): ... 11 more 09-30 02:32:31.684: I/dalvikvm(214): threadid=7: reacting to signal 3 09-30 02:32:31.684: E/dalvikvm(214): Unable to open stack trace file '/data/anr/traces.txt': Permission denied the above is my debugging output for the below activities LOGINACTIVITY.java package com.agrim.mjcet; import com.agrim.mjcet.R; import android.app.Activity; import android.content.Intent; import android.os.Bundle; import android.view.View; //import android.widget.TextView; import android.widget.Button; import android.widget.EditText; import android.view.View.OnClickListener; public class LoginActivity extends Activity { EditText txtUserName; EditText txtPassword; Button btnLogin; Button btnCancel; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // setting default screen to login.xml setContentView(R.layout.main); txtUserName=(EditText)this.findViewById(R.id.txtUname); txtPassword=(EditText)this.findViewById(R.id.txtPwd); btnLogin=(Button)this.findViewById(R.id.btnLogin); btnLogin=(Button)this.findViewById(R.id.btnLogin); btnLogin.setOnClickListener(new OnClickListener() { public void onClick(View v) { // Switching to Register screen if((txtUserName.getText().toString()).equals(txtPassword.getText().toString())) { Intent myIntent = new Intent(getApplicationContext(),SampleActivity.class); startActivityForResult(myIntent, 0); } } } ); } } SAMPLE ACTIVITY.java package com.agrim.mjcet; import com.agrim.mjcet.R; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.widget.TextView; public class SampleActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // Set View to register.xml setContentView(R.layout.lol); TextView HomeScreen = (TextView) findViewById(R.id.back); HomeScreen.setOnClickListener(new View.OnClickListener() { public void onClick(View arg0) { // Closing registration screen // Switching to Login Screen/closing register screen finish(); } }); } } and here are my 2 layouts MAIN.XML <TableLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:background="#000000" android:stretchColumns="1"> <TableRow> <TextView android:text="@string/user_name" android:textColor="#347235" android:id="@+id/TextView01" android:layout_width="wrap_content" android:layout_marginLeft="25dip" android:layout_height="wrap_content"> </TextView> <EditText android:text="" android:inputType="text" android:id="@+id/txtUname" android:layout_weight="0.75" android:layout_width="wrap_content" android:layout_marginRight="10dip" android:layout_marginBottom="5dip" android:background="#FFFFFF" android:layout_height="wrap_content"> </EditText> </TableRow> <TableRow> <TextView android:text="@string/password" android:textColor="#347235" android:id="@+id/TextView02" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="25dip"> </TextView> <EditText android:text="" android:inputType="textPassword" android:id="@+id/txtPwd" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginRight="10dip" android:layout_weight="1" android:background="#FFFFFF" android:gravity="center"> </EditText> </TableRow> <TableRow> <Button android:id="@+id/btnLogin" android:layout_width="fill_parent" android:layout_height="wrap_content" android:background="#FFFFFF" android:layout_marginTop="25dip" android:layout_marginLeft="50dip" android:onClick="onClickMyButton" android:text="@string/login" /> <Button android:id="@+id/btnCancel" android:layout_width="fill_parent" android:layout_height="wrap_content" android:background="#FFFFFF" android:layout_marginTop="25dip" android:layout_marginLeft="100dip" android:layout_marginRight="50dip" android:text="@string/cancel" /> </TableRow> <FrameLayout android:layout_width="wrap_content" android:layout_height="match_parent" > <ImageView android:layout_width="fill_parent" android:layout_height="match_parent" android:scaleType="centerInside" android:src="@drawable/logo_invert" android:contentDescription="@drawable/logo_invert"/> </FrameLayout> </TableLayout> and finally LOL.xml <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:background="#000000" android:layout_height="fill_parent" > <ImageView android:layout_width="fill_parent" android:id="@+id/back" android:layout_height="match_parent" android:scaleType="centerInside" android:src="@drawable/lol" android:contentDescription="@drawable/lol"> </ImageView> <RelativeLayout android:layout_width="match_parent" android:layout_height="138dp" android:orientation="vertical" android:gravity="bottom" > <TextView android:id="@+id/TextView02" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentBottom="true" android:layout_centerHorizontal="true" android:text="@string/coming_soon" android:textColor="#347235" /> </RelativeLayout> </FrameLayout> I get a force close upon initialization.. and yes this is my first android app :)

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  • Log call information whenever there is a call.

    - by linuxdoniv
    Hi, I have written the android application and I want the application to send the call information whenever there is an incoming call and it ends. This way I would be sending all calls to the server irrespective of size of the call log. Here is the code public class PhoneInfo extends BroadcastReceiver { private int incoming_call = 0; private Cursor c; Context context; public void onReceive(Context con, Intent intent) { c = con.getContentResolver().query( android.provider.CallLog.Calls.CONTENT_URI, null, null, null, android.provider.CallLog.Calls.DATE+ " DESC"); context = con; IncomingCallListener phoneListener=new IncomingCallListener(); TelephonyManager telephony = (TelephonyManager) con.getSystemService(Context.TELEPHONY_SERVICE); telephony.listen(phoneListener,PhoneStateListener.LISTEN_CALL_STATE); } public class IncomingCallListener extends PhoneStateListener { public void onCallStateChanged(int state,String incomingNumber){ switch(state){ case TelephonyManager.CALL_STATE_IDLE: if(incoming_call == 1){ CollectSendCallInfo(); incoming_call = 0; } break; case TelephonyManager.CALL_STATE_OFFHOOK: break; case TelephonyManager.CALL_STATE_RINGING: incoming_call = 1; break; } } } private void CollectSendCallInfo() { int numberColumn = c.getColumnIndex( android.provider.CallLog.Calls.NUMBER); int dateColumn = c.getColumnIndex( android.provider.CallLog.Calls.DATE); int typeColumn = c.getColumnIndex( android.provider.CallLog.Calls.TYPE); int durationColumn=c.getColumnIndex( android.provider.CallLog.Calls.DURATION); ArrayList<String> callList = new ArrayList<String>(); try{ boolean moveToFirst=c.moveToFirst(); } catch(Exception e) { ; // could not move to the first row. return; } int row_count = c.getCount(); int loop_index = 0; int is_latest_call_read = 0; String callerPhonenumber = c.getString(numberColumn); int callDate = c.getInt(dateColumn); int callType = c.getInt(typeColumn); int duration=c.getInt(durationColumn); while((loop_index <row_count) && (is_latest_call_read != 1)){ switch(callType){ case android.provider.CallLog.Calls.INCOMING_TYPE: is_latest_call_read = 1; break; case android.provider.CallLog.Calls.MISSED_TYPE: break; case android.provider.CallLog.Calls.OUTGOING_TYPE: break; } loop_index++; c.moveToNext(); } SendCallInfo(callerPhonenumber, Integer.toString(duration), Integer.toString(callDate)); } private void SendCallInfo(String callerPhonenumber, String callDuration, String callDate) { JSONObject j = new JSONObject(); try { j.put("Caller", callerPhonenumber); j.put("Duration", callDuration); j.put("CallDate", callDate); } catch (JSONException e) { Toast.makeText(context, "Json object failure!", Toast.LENGTH_LONG).show(); } String url = "http://xxxxxx.xxx.xx/xxxx/xxx.php"; Map<String, String> kvPairs = new HashMap<String, String>(); kvPairs.put("phonecall", j.toString()); HttpResponse re; try { re = doPost(url, kvPairs); String temp; try { temp = EntityUtils.toString(re.getEntity()); if (temp.compareTo("SUCCESS") == 0) { ; } else ; } catch (ParseException e1) { Toast.makeText(context, "Parse Exception in response!", Toast.LENGTH_LONG) .show(); e1.printStackTrace(); } catch (IOException e1) { Toast.makeText(context, "Io exception in response!", Toast.LENGTH_LONG).show(); e1.printStackTrace(); } } catch (ClientProtocolException e1) { Toast.makeText(context, "Client Protocol Exception!", Toast.LENGTH_LONG).show(); e1.printStackTrace(); } catch (IOException e1) { Toast.makeText(context, "Client Protocol Io exception!", Toast.LENGTH_LONG).show(); e1.printStackTrace(); } } and here is the manifest file <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"></uses-permission> <uses-permission android:name="android.permission.INTERNET"></uses-permission> <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"></uses-permission> <uses-permission android:name="android.permission.ACCESS_LOCATION_EXTRA_COMMANDS"></uses-permission> <uses-permission android:name="android.permission.INSTALL_LOCATION_PROVIDER"></uses-permission> <uses-permission android:name="android.permission.SET_DEBUG_APP"></uses-permission> <uses-permission android:name="android.permission.RECEIVE_SMS"></uses-permission> <uses-permission android:name="android.permission.READ_PHONE_STATE"></uses-permission> <uses-permission android:name="android.permission.READ_SMS"></uses-permission> <application android:icon="@drawable/icon" android:label="@string/app_name"> <activity android:name=".Friend" android:label="@string/app_name"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <activity android:name=".LoginInfo" android:label="@string/app_name"> <intent-filter> <action android:name="android.intent.action.DEFAULT" /> </intent-filter> </activity> <service android:exported="true" android:enabled="true" android:name=".GeoUpdateService" > </service> <receiver android:name=".SmsInfo" > <intent-filter> <action android:name= "android.provider.Telephony.SMS_RECEIVED" /> </intent-filter> </receiver> <receiver android:name=".PhoneInfo" > <intent-filter> <action android:name="android.intent.action.PHONE_STATE"></action> </intent-filter> </receiver> </application> The application just crashes when there is an incoming call.. i have been able to log the information about incoming SMS, but this call info logging is failing. Thanks for any help.

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  • C++ scoping error

    - by Pat Murray
    I have the following code: #include "Student.h" #include "SortedList.h" using namespace std; int main() { // points to the sorted list object SortedList *list = new SortedList; //This is line 17 // array to hold 100 student objects Student create[100]; int num = 100000; // holds different ID numbers // fills an array with 100 students of various ID numbers for (Student &x : create) { x = new Student(num); num += 100; } // insert all students into the sorted list for (Student &x : create) list->insert(&x); delete list; return 0; } And I keep getting the compile time error: main.cpp: In function ‘int main()’: main.cpp:17: error: ‘SortedList’ was not declared in this scope main.cpp:17: error: ‘list’ was not declared in this scope main.cpp:17: error: expected type-specifier before ‘SortedList’ main.cpp:17: error: expected `;' before ‘SortedList’ main.cpp:20: error: ‘Student’ was not declared in this scope main.cpp:20: error: expected primary-expression before ‘]’ token main.cpp:20: error: expected `;' before ‘create’ main.cpp:25: error: expected `;' before ‘x’ main.cpp:31: error: expected primary-expression before ‘for’ main.cpp:31: error: expected `;' before ‘for’ main.cpp:31: error: expected primary-expression before ‘for’ main.cpp:31: error: expected `)' before ‘for’ main.cpp:31: error: expected `;' before ‘x’ main.cpp:34: error: type ‘<type error>’ argument given to ‘delete’, expected pointer main.cpp:35: error: expected primary-expression before ‘return’ main.cpp:35: error: expected `)' before ‘return’ My Student.cpp and SortedList.cpp files compile just fine. They both also include .h files. I just do not understand why I get an error on that line. It seems to be a small issue though. Any insight would be appreciated. UPDATE1: I originally had .h files included, but i changed it when trying to figure out the cause of the error. The error remains with the .h files included though. UPDATE2: SortedList.h #ifndef SORTEDLIST_H #define SORTEDLIST_H #include "Student.h" /* * SortedList class * * A SortedList is an ordered collection of Students. The Students are ordered * from lowest numbered student ID to highest numbered student ID. */ class SortedList { public: SortedList(); // Constructs an empty list. SortedList(const SortedList & l); // Constructs a copy of the given student object ~SortedList(); // Destructs the sorted list object const SortedList & operator=(const SortedList & l); // Defines the assignment operator between two sorted list objects bool insert(Student *s); // If a student with the same ID is not already in the list, inserts // the given student into the list in the appropriate place and returns // true. If there is already a student in the list with the same ID // then the list is not changed and false is returned. Student *find(int studentID); // Searches the list for a student with the given student ID. If the // student is found, it is returned; if it is not found, NULL is returned. Student *remove(int studentID); // Searches the list for a student with the given student ID. If the // student is found, the student is removed from the list and returned; // if no student is found with the given ID, NULL is returned. // Note that the Student is NOT deleted - it is returned - however, // the removed list node should be deleted. void print() const; // Prints out the list of students to standard output. The students are // printed in order of student ID (from smallest to largest), one per line private: // Since Listnodes will only be used within the SortedList class, // we make it private. struct Listnode { Student *student; Listnode *next; }; Listnode *head; // pointer to first node in the list static void freeList(Listnode *L); // Traverses throught the linked list and deallocates each node static Listnode *copyList(Listnode *L); // Returns a pointer to the first node within a particular list }; #endif #ifndef STUDENT_H #define STUDENT_H Student.h #ifndef STUDENT_H #define STUDENT_H /* * Student class * * A Student object contains a student ID, the number of credits, and an * overall GPA. */ class Student { public: Student(); // Constructs a default student with an ID of 0, 0 credits, and 0.0 GPA. Student(int ID); // Constructs a student with the given ID, 0 credits, and 0.0 GPA. Student(int ID, int cr, double grPtAv); // Constructs a student with the given ID, number of credits, and GPA.\ Student(const Student & s); // Constructs a copy of another student object ~Student(); // Destructs a student object const Student & operator=(const Student & rhs); // Defines the assignment operator between two student objects // Accessors int getID() const; // returns the student ID int getCredits() const; // returns the number of credits double getGPA() const; // returns the GPA // Other methods void update(char grade, int cr); // Updates the total credits and overall GPA to take into account the // additions of the given letter grade in a course with the given number // of credits. The update is done by first converting the letter grade // into a numeric value (A = 4.0, B = 3.0, etc.). The new GPA is // calculated using the formula: // // (oldGPA * old_total_credits) + (numeric_grade * cr) // newGPA = --------------------------------------------------- // old_total_credits + cr // // Finally, the total credits is updated (to old_total_credits + cr) void print() const; // Prints out the student to standard output in the format: // ID,credits,GPA // Note: the end-of-line is NOT printed after the student information private: int studentID; int credits; double GPA; }; #endif

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  • Questions related to writing your own file downloader using multiple threads java

    - by Shekhar
    Hello In my current company, i am doing a PoC on how we can write a file downloader utility. We have to use socket programming(TCP/IP) for downloading the files. One of the requirements of the client is that a file(which will be large in size) should be transfered in chunks for example if we have a file of 5Mb size then we can have 5 threads which transfer 1 Mb each. I have written a small application which downloads a file. You can download the eclipe project from http://www.fileflyer.com/view/QM1JSC0 A brief explanation of my classes FileSender.java This class provides the bytes of file. It has a method called sendBytesOfFile(long start,long end, long sequenceNo) which gives the number of bytes. import java.io.File; import java.io.IOException; import java.util.zip.CRC32; import org.apache.commons.io.FileUtils; public class FileSender { private static final String FILE_NAME = "C:\\shared\\test.pdf"; public ByteArrayWrapper sendBytesOfFile(long start,long end, long sequenceNo){ try { File file = new File(FILE_NAME); byte[] fileBytes = FileUtils.readFileToByteArray(file); System.out.println("Size of file is " +fileBytes.length); System.out.println(); System.out.println("Start "+start +" end "+end); byte[] bytes = getByteArray(fileBytes, start, end); ByteArrayWrapper wrapper = new ByteArrayWrapper(bytes, sequenceNo); return wrapper; } catch (IOException e) { throw new RuntimeException(e); } } private byte[] getByteArray(byte[] bytes, long start, long end){ long arrayLength = end-start; System.out.println("Start : "+start +" end : "+end + " Arraylength : "+arrayLength +" length of source array : "+bytes.length); byte[] arr = new byte[(int)arrayLength]; for(int i = (int)start, j =0; i < end;i++,j++){ arr[j] = bytes[i]; } return arr; } public static long fileSize(){ File file = new File(FILE_NAME); return file.length(); } } Second Class is FileReceiver.java - This class receives the file. Small Explanation what this file does This class finds the size of the file to be fetched from Sender Depending upon the size of the file it finds the start and end position till the bytes needs to be read. It starts n number of threads giving each thread start,end, sequence number and a list which all the threads share. Each thread reads the number of bytes and creates a ByteArrayWrapper. ByteArrayWrapper objects are added to the list Then i have while loop which basically make sure that all threads have done their work finally it sorts the list based on the sequence number. then the bytes are joined, and a complete byte array is formed which is converted to a file. Code of File Receiver package com.filedownloader; import java.io.File; import java.io.IOException; import java.util.ArrayList; import java.util.Collections; import java.util.Comparator; import java.util.List; import java.util.zip.CRC32; import org.apache.commons.io.FileUtils; public class FileReceiver { public static void main(String[] args) { FileReceiver receiver = new FileReceiver(); receiver.receiveFile(); } public void receiveFile(){ long startTime = System.currentTimeMillis(); long numberOfThreads = 10; long filesize = FileSender.fileSize(); System.out.println("File size received "+filesize); long start = filesize/numberOfThreads; List<ByteArrayWrapper> list = new ArrayList<ByteArrayWrapper>(); for(long threadCount =0; threadCount<numberOfThreads ;threadCount++){ FileDownloaderTask task = new FileDownloaderTask(threadCount*start,(threadCount+1)*start,threadCount,list); new Thread(task).start(); } while(list.size() != numberOfThreads){ // this is done so that all the threads should complete their work before processing further. //System.out.println("Waiting for threads to complete. List size "+list.size()); } if(list.size() == numberOfThreads){ System.out.println("All bytes received "+list); Collections.sort(list, new Comparator<ByteArrayWrapper>() { @Override public int compare(ByteArrayWrapper o1, ByteArrayWrapper o2) { long sequence1 = o1.getSequence(); long sequence2 = o2.getSequence(); if(sequence1 < sequence2){ return -1; }else if(sequence1 > sequence2){ return 1; } else{ return 0; } } }); byte[] totalBytes = list.get(0).getBytes(); byte[] firstArr = null; byte[] secondArr = null; for(int i = 1;i<list.size();i++){ firstArr = totalBytes; secondArr = list.get(i).getBytes(); totalBytes = concat(firstArr, secondArr); } System.out.println(totalBytes.length); convertToFile(totalBytes,"c:\\tmp\\test.pdf"); long endTime = System.currentTimeMillis(); System.out.println("Total time taken with "+numberOfThreads +" threads is "+(endTime-startTime)+" ms" ); } } private byte[] concat(byte[] A, byte[] B) { byte[] C= new byte[A.length+B.length]; System.arraycopy(A, 0, C, 0, A.length); System.arraycopy(B, 0, C, A.length, B.length); return C; } private void convertToFile(byte[] totalBytes,String name) { try { FileUtils.writeByteArrayToFile(new File(name), totalBytes); } catch (IOException e) { throw new RuntimeException(e); } } } Code of ByteArrayWrapper package com.filedownloader; import java.io.Serializable; public class ByteArrayWrapper implements Serializable{ private static final long serialVersionUID = 3499562855188457886L; private byte[] bytes; private long sequence; public ByteArrayWrapper(byte[] bytes, long sequenceNo) { this.bytes = bytes; this.sequence = sequenceNo; } public byte[] getBytes() { return bytes; } public long getSequence() { return sequence; } } Code of FileDownloaderTask import java.util.List; public class FileDownloaderTask implements Runnable { private List<ByteArrayWrapper> list; private long start; private long end; private long sequenceNo; public FileDownloaderTask(long start,long end,long sequenceNo,List<ByteArrayWrapper> list) { this.list = list; this.start = start; this.end = end; this.sequenceNo = sequenceNo; } @Override public void run() { ByteArrayWrapper wrapper = new FileSender().sendBytesOfFile(start, end, sequenceNo); list.add(wrapper); } } Questions related to this code 1) Does file downloading becomes fast when multiple threads is used? In this code i am not able to see the benefit. 2) How should i decide how many threads should i create ? 3) Are their any opensource libraries which does that 4) The file which file receiver receives is valid and not corrupted but checksum (i used FileUtils of common-io) does not match. Whats the problem? 5) This code gives out of memory when used with large file(above 100 Mb) i.e. because byte array which is created. How can i avoid? I know this is a very bad code but i have to write this in one day -:). Please suggest any other good way to do this? Thanks Shekhar

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