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• NullPointerException in generated JSP code calling setJspId()

  - by Dobbo

  I am trying to deploy the Duke's Bank example form the J2EE 5 tutorial on JBoss 7.1.1. I have only used (unaltered) the source, and the standard XML configuration files for deployment, part of the exercise here is to see how I might structure a JSP based project of my own. The exception I get is as follows: ERROR [[jsp]] Servlet.service() for servlet jsp threw exception: java.lang.NullPointerException at javax.faces.webapp.UIComponentClassicTagBase.setJspId(UIComponentClassicTagBase.java:1858) [jboss-jsf-api_2.1_spec-2.0.1.Final.jar:2.0.1.Final] at org.apache.jsp.main_jsp._jspx_meth_f_005fview_005f0(main_jsp.java:99) at org.apache.jsp.main_jsp._jspService(main_jsp.java:76) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) [jbossweb-7.0.13.Final.jar:] at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final] at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:369) [jbossweb-7.0.13.Final.jar:] at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:326) [jbossweb-7.0.13.Final.jar:] at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:253) [jbossweb-7.0.13.Final.jar:] at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329) [jbossweb-7.0.13.Final.jar:] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13.Final.jar:] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) [jbossweb-7.0.13.Final.jar:] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) [jbossweb-7.0.13.Final.jar:] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:397) [jbossweb-7.0.13.Final.jar:] at org.jboss.as.jpa.interceptor.WebNonTxEmCloserValve.invoke(WebNonTxEmCloserValve.java:50) [jboss-as-jpa-7.1.1.Final.jar:7.1.1.Final] at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:153) [jboss-as-web-7.1.1.Final.jar:7.1.1.Final] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155) [jbossweb-7.0.13.Final.jar:] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.13.Final.jar:] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.13.Final.jar:] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368) [jbossweb-7.0.13.Final.jar:] at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [jbossweb-7.0.13.Final.jar:] at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:671) [jbossweb-7.0.13.Final.jar:] at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930) [jbossweb-7.0.13.Final.jar:] at java.lang.Thread.run(Thread.java:636) [rt.jar:1.6.0_18] I have not given any JBoss configuration files, the WAR's WEB-INF part looks like this: $ jar tvf build/lib/dukebank-web.war 0 Sat Dec 15 22:00:12 GMT 2012 META-INF/ 123 Sat Dec 15 22:00:10 GMT 2012 META-INF/MANIFEST.MF 0 Sat Dec 15 22:00:12 GMT 2012 WEB-INF/ 2514 Fri Dec 14 14:29:20 GMT 2012 WEB-INF/web.xml 1348 Sat Dec 15 08:19:46 GMT 2012 WEB-INF/dukesBank.tld 7245 Sat Dec 15 08:19:46 GMT 2012 WEB-INF/faces-config.xml 2153 Sat Dec 15 08:19:46 GMT 2012 WEB-INF/tutorial-template.tld 0 Sat Dec 15 22:00:12 GMT 2012 WEB-INF/classes/... The JSP file (main.jsp) that causes this problem is: <f:view> <h:form> <jsp:include page="/template/template.jsp"/> <center> <h3><h:outputText value="#{bundle.Welcome}"/></h3> </center> </h:form> </f:view> The template file it includes: <%@ taglib uri="/WEB-INF/tutorial-template.tld" prefix="tt" %> <%@ page errorPage="/template/errorpage.jsp" %> <%@ include file="/template/screendefinitions.jspf" %> <html> <head> <title> <tt:insert definition="bank" parameter="title"/> </title> <link rel="stylesheet" type="text/css" href="stylesheet.css"> </head> <body bgcolor="#ffffff"> <tt:insert definition="bank" parameter="banner"/> <tt:insert definition="bank" parameter="links"/> </body> </html> I will refrain from coping any more files because, as I said at the start I haven't altered any of the files I have used. Many thanks for your help, Steve

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• "didChangeSection:" NSfetchedResultsController delegate method not being called

  - by robenk

  I have a standard split view controller, with a detail view and a table view. Pressing a button in the detail view can cause the an object to change its placement in the table view's ordering. This works fine, as long as the resulting ordering change doesn't result in a section being added or removed. I.e. an object can change it's ordering in a section or switch from one section to another. Those ordering changes work correctly without problems. But, if the object tries to move to a section that doesn't exist yet, or is the last object to leave a section (therefore requiring the section its leaving to be removed), then the application crashes. NSFetchedResultsControllerDelegate has methods to handle sections being added and removed that should be called in those cases. But those delegate methods aren't being called for some reason. The code in question, is boilerplate: - (void)controllerWillChangeContent:(NSFetchedResultsController *)controller { NSLog(@"willChangeContent"); [self.tableView beginUpdates]; } - (void)controller:(NSFetchedResultsController *)controller didChangeSection:(id <NSFetchedResultsSectionInfo>)sectionInfo atIndex:(NSUInteger)sectionIndex forChangeType:(NSFetchedResultsChangeType)type { NSLog(@"didChangeSection"); switch(type) { case NSFetchedResultsChangeInsert: [self.tableView insertSections:[NSIndexSet indexSetWithIndex:sectionIndex] withRowAnimation:UITableViewRowAnimationFade]; break; case NSFetchedResultsChangeDelete: [self.tableView deleteSections:[NSIndexSet indexSetWithIndex:sectionIndex] withRowAnimation:UITableViewRowAnimationFade]; break; } } - (void)controller:(NSFetchedResultsController *)controller didChangeObject:(id)anObject atIndexPath:(NSIndexPath *)indexPath forChangeType:(NSFetchedResultsChangeType)type newIndexPath:(NSIndexPath *)newIndexPath { NSLog(@"didChangeObject"); UITableView *tableView = self.tableView; switch(type) { case NSFetchedResultsChangeInsert: [tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:newIndexPath] withRowAnimation:UITableViewRowAnimationFade]; break; case NSFetchedResultsChangeDelete: [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade]; break; case NSFetchedResultsChangeUpdate: [self configureCell:[tableView cellForRowAtIndexPath:indexPath] atIndexPath:indexPath]; break; case NSFetchedResultsChangeMove: [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade]; [tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:newIndexPath]withRowAnimation:UITableViewRowAnimationFade]; break; } } - (void)controllerDidChangeContent:(NSFetchedResultsController *)controller { NSLog(@"didChangeContent"); [self.tableView endUpdates]; [detailViewController.reminderView update]; } Starting the application, and then causing the last object to leave a section results in the following output: 2011-01-08 23:40:18.910 Reminders[54647:207] willChangeContent 2011-01-08 23:40:18.912 Reminders[54647:207] didChangeObject 2011-01-08 23:40:18.914 Reminders[54647:207] didChangeContent 2011-01-08 23:40:18.915 Reminders[54647:207] *** Assertion failure in -[UITableView _endCellAnimationsWithContext:], /SourceCache/UIKit_Sim/UIKit-1145.66/UITableView.m:825 2011-01-08 23:40:18.917 Reminders[54647:207] Serious application error. Exception was caught during Core Data change processing: Invalid update: invalid number of sections. The number of sections contained in the table view after the update (5) must be equal to the number of sections contained in the table view before the update (6), plus or minus the number of sections inserted or deleted (0 inserted, 0 deleted). with userInfo (null) As you can see, "willChangeContent", "didChangeObject" (moving the object in question), and "didChangeContent" were all called properly. Based on the Apple's NSFetchedResultsControllerDelegate documentation "didChangeSection" should have been called before "didChangeObject", which would have prevented the exception causing the crash. So I guess the question is how do I assure that didChangeSection gets called? Thanks in advance for any help!

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• Data adapter not filling my dataset

  - by Doug Ancil

  I have the following code: Imports System.Data.SqlClient Public Class Main Protected WithEvents DataGridView1 As DataGridView Dim instForm2 As New Exceptions Private Sub Button1_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles startpayrollButton.Click Dim ssql As String = "select MAX(payrolldate) AS [payrolldate], " & _ "dateadd(dd, ((datediff(dd, '17530107', MAX(payrolldate))/7)*7)+7, '17530107') AS [Sunday]" & _ "from dbo.payroll" & _ " where payrollran = 'no'" Dim oCmd As System.Data.SqlClient.SqlCommand Dim oDr As System.Data.SqlClient.SqlDataReader oCmd = New System.Data.SqlClient.SqlCommand Try With oCmd .Connection = New System.Data.SqlClient.SqlConnection("Initial Catalog=mdr;Data Source=xxxxx;uid=xxxxx;password=xxxxx") .Connection.Open() .CommandType = CommandType.Text .CommandText = ssql oDr = .ExecuteReader() End With If oDr.Read Then payperiodstartdate = oDr.GetDateTime(1) payperiodenddate = payperiodstartdate.AddSeconds(604799) Dim ButtonDialogResult As DialogResult ButtonDialogResult = MessageBox.Show(" The Next Payroll Start Date is: " & payperiodstartdate.ToString() & System.Environment.NewLine & " Through End Date: " & payperiodenddate.ToString()) If ButtonDialogResult = Windows.Forms.DialogResult.OK Then exceptionsButton.Enabled = True startpayrollButton.Enabled = False End If End If oDr.Close() oCmd.Connection.Close() Catch ex As Exception MessageBox.Show(ex.Message) oCmd.Connection.Close() End Try End Sub Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles exceptionsButton.Click Dim connection As System.Data.SqlClient.SqlConnection Dim adapter As System.Data.SqlClient.SqlDataAdapter = New System.Data.SqlClient.SqlDataAdapter Dim connectionString As String = "Initial Catalog=mdr;Data Source=xxxxx;uid=xxxxx;password=xxxxx" Dim ds As New DataSet Dim _sql As String = "SELECT [Exceptions].Employeenumber,[Exceptions].exceptiondate, [Exceptions].starttime, [exceptions].endtime, [Exceptions].code, datediff(minute, starttime, endtime) as duration INTO scratchpad3" & _ " FROM Employees INNER JOIN Exceptions ON [Exceptions].EmployeeNumber = [Exceptions].Employeenumber" & _ " where [Exceptions].exceptiondate between @payperiodstartdate and @payperiodenddate" & _ " GROUP BY [Exceptions].Employeenumber, [Exceptions].Exceptiondate, [Exceptions].starttime, [exceptions].endtime," & _ " [Exceptions].code, [Exceptions].exceptiondate" connection = New SqlConnection(connectionString) connection.Open() Dim _CMD As SqlCommand = New SqlCommand(_sql, connection) _CMD.Parameters.AddWithValue("@payperiodstartdate", payperiodstartdate) _CMD.Parameters.AddWithValue("@payperiodenddate", payperiodenddate) adapter.SelectCommand = _CMD Try adapter.Fill(ds) If ds Is Nothing OrElse ds.Tables.Count = 0 OrElse ds.Tables(0).Rows.Count = 0 Then 'it's empty MessageBox.Show("There was no data for this time period. Press Ok to continue", "No Data") connection.Close() Exceptions.saveButton.Enabled = False Exceptions.Hide() Else connection.Close() End If Catch ex As Exception MessageBox.Show(ex.ToString) connection.Close() End Try Exceptions.Show() End Sub Private Sub payrollButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles payrollButton.Click Payrollfinal.Show() End Sub End Class and when I run my program and press this button Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles exceptionsButton.Click I have my date range within a time that I know that my dataset should produce a result, but when I put a line break in my code here: adapter.Fill(ds) and look at it in debug, I show a table value of 0. If I run the same query that I have to produce these results in sql analyser, I see 1 result. Can someone see why my query on my form produces a different result than the sql analyser does? Also here is my schema for my two tables: Exceptions employeenumber varchar no 50 yes no no SQL_Latin1_General_CP1_CI_AS exceptiondate datetime no 8 yes (n/a) (n/a) NULL starttime datetime no 8 yes (n/a) (n/a) NULL endtime datetime no 8 yes (n/a) (n/a) NULL duration varchar no 50 yes no no SQL_Latin1_General_CP1_CI_AS code varchar no 50 yes no no SQL_Latin1_General_CP1_CI_AS approvedby varchar no 50 yes no no SQL_Latin1_General_CP1_CI_AS approved varchar no 50 yes no no SQL_Latin1_General_CP1_CI_AS time timestamp no 8 yes (n/a) (n/a) NULL employees employeenumber varchar no 50 no no no SQL_Latin1_General_CP1_CI_AS name varchar no 50 no no no SQL_Latin1_General_CP1_CI_AS initials varchar no 50 no no no SQL_Latin1_General_CP1_CI_AS loginname1 varchar no 50 yes no no SQL_Latin1_General_CP1_CI_AS

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• Unable to execute native sql query

  - by Renjith

  I am developing an application with Spring and hibernate. In the DAO class, I was trying to execute a native sql as follows: SELECT * FROM product ORDER BY unitprice ASC LIMIT 6 OFFSET 0 But the system throws an exception. org.hibernate.HibernateException: No Hibernate Session bound to thread, and configuration does not allow creation of non-transactional one here org.springframework.orm.hibernate3.SpringSessionContext.currentSession(SpringSessionContext.java:63) org.hibernate.impl.SessionFactoryImpl.getCurrentSession(SessionFactoryImpl.java:544) com.dao.ProductDAO.listProducts(ProductDAO.java:15) com.dataobjects.impl.ProductDoImpl.listProducts(ProductDoImpl.java:26) com.action.ProductAction.showProducts(ProductAction.java:53) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) application-context.xml is show below <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer" p:location="/WEB-INF/jdbc.properties" /> <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource" p:driverClassName="${jdbc.driverClassName}" p:url="${jdbc.url}" p:username="${jdbc.username}" p:password="${jdbc.password}" /> <!-- Hibernate SessionFactory --> <!-- class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"--> <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> <property name="dataSource"> <ref local="dataSource"/> </property> <property name="configLocation"> <value>WEB-INF/classes/hibernate.cfg.xml</value> </property> <property name="configurationClass"> <value>org.hibernate.cfg.AnnotationConfiguration</value> </property> <!-- <property name="annotatedClasses"> <list> <value>com.pojo.Product</value> <value>com.pojo.User</value> <value>com.pojo.UserLogin</value> </list> </property> --> <property name="hibernateProperties"> <props> <prop key="hibernate.dialect">${hibernate.dialect}</prop> <prop key="hibernate.show_sql">true</prop> </props> </property> </bean> <!-- User Bean definitions --> <bean name="/logincheck" class="com.action.LoginAction"> <property name="userDo" ref="userDo" /> </bean> <bean id="userDo" class="com.dataobjects.impl.UserDoImpl" > <property name="userDAO" ref="userDAO" /> </bean> <bean id="userDAO" class="com.dao.UserDAO" > <property name="sessionFactory" ref="sessionFactory" /> </bean> <bean name="/listproducts" class="com.action.ProductAction"> <property name="productDo" ref="productDo" /> </bean> <bean id="productDo" class="com.dataobjects.impl.ProductDoImpl" > <property name="productDAO" ref="productDAO" /> </bean> <bean id="productDAO" class="com.dao.ProductDAO" > <property name="sessionFactory" ref="sessionFactory" /> </bean> And DAO class is public class ProductDAO extends HibernateDaoSupport{ public List listProducts(int startIndex, int incrementor) { org.hibernate.Session session = getHibernateTemplate().getSessionFactory().getCurrentSession(); String queryString = "SELECT * FROM product ORDER BY unitprice ASC LIMIT 6 OFFSET 0"; List list = null; try{ session.beginTransaction(); org.hibernate.Query query = session.createQuery(queryString); list = query.list(); session.getTransaction().commit(); } catch(Exception e) { e.printStackTrace(); } finally { session.close(); } return list; } public List getProductCount() { String queryString = "SELECT COUNT(*) FROM Product"; return getHibernateTemplate().find(queryString); } } Any thoughts to fix it up?

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• Improve heavy work in a loop in multithreading

  - by xjaphx

  I have a little problem with my data processing. public void ParseDetails() { for (int i = 0; i < mListAppInfo.Count; ++i) { ParseOneDetail(i); } } For 300 records, it usually takes around 13-15 minutes. I've tried to improve by using Parallel.For() but it always stop at some point. public void ParseDetails() { Parallel.For(0, mListAppInfo.Count, i => ParseOneDetail(i)); } In method ParseOneDetail(int index), I set an output log for tracking the record id which is under processing. Always hang at some point, I don't know why.. ParseOneDetail(): 89 ... ParseOneDetail(): 90 ... ParseOneDetail(): 243 ... ParseOneDetail(): 92 ... ParseOneDetail(): 244 ... ParseOneDetail(): 93 ... ParseOneDetail(): 245 ... ParseOneDetail(): 247 ... ParseOneDetail(): 94 ... ParseOneDetail(): 248 ... ParseOneDetail(): 95 ... ParseOneDetail(): 99 ... ParseOneDetail(): 249 ... ParseOneDetail(): 100 ... _ <hang at this point> Appreciate your help and suggestions to improve this. Thank you! Edit 1: update for method: private void ParseOneDetail(int index) { Console.WriteLine("ParseOneDetail(): " + index + " ... "); ApplicationInfo appInfo = mListAppInfo[index]; var htmlWeb = new HtmlWeb(); var document = htmlWeb.Load(appInfo.AppAnnieURL); // get first one only HtmlNode nodeStoreURL = document.DocumentNode.SelectSingleNode(Constants.XPATH_FIRST); appInfo.StoreURL = nodeStoreURL.Attributes[Constants.HREF].Value; } Edit 2: This is the error output after a while running as Enigmativity suggest, ParseOneDetail(): 234 ... ParseOneDetail(): 87 ... ParseOneDetail(): 235 ... ParseOneDetail(): 236 ... ParseOneDetail(): 88 ... ParseOneDetail(): 238 ... ParseOneDetail(): 89 ... ParseOneDetail(): 90 ... ParseOneDetail(): 239 ... ParseOneDetail(): 92 ... Unhandled Exception: System.AggregateException: One or more errors occurred. --- > System.Net.WebException: The operation has timed out at System.Net.HttpWebRequest.GetResponse() at HtmlAgilityPack.HtmlWeb.Get(Uri uri, String method, String path, HtmlDocum ent doc, IWebProxy proxy, ICredentials creds) in D:\Source\htmlagilitypack.new\T runk\HtmlAgilityPack\HtmlWeb.cs:line 1355 at HtmlAgilityPack.HtmlWeb.LoadUrl(Uri uri, String method, WebProxy proxy, Ne tworkCredential creds) in D:\Source\htmlagilitypack.new\Trunk\HtmlAgilityPack\Ht mlWeb.cs:line 1479 at HtmlAgilityPack.HtmlWeb.Load(String url, String method) in D:\Source\htmla gilitypack.new\Trunk\HtmlAgilityPack\HtmlWeb.cs:line 1103 at HtmlAgilityPack.HtmlWeb.Load(String url) in D:\Source\htmlagilitypack.new\ Trunk\HtmlAgilityPack\HtmlWeb.cs:line 1061 at SimpleChartParser.AppAnnieParser.ParseOneDetail(ApplicationInfo appInfo) i n c:\users\nhn60\documents\visual studio 2010\Projects\FunToolPack\SimpleChartPa rser\AppAnnieParser.cs:line 90 at SimpleChartParser.AppAnnieParser.<ParseDetails>b__0(ApplicationInfo ai) in c:\users\nhn60\documents\visual studio 2010\Projects\FunToolPack\SimpleChartPar ser\AppAnnieParser.cs:line 80 at System.Threading.Tasks.Parallel.<>c__DisplayClass21`2.<ForEachWorker>b__17 (Int32 i) at System.Threading.Tasks.Parallel.<>c__DisplayClassf`1.<ForWorker>b__c() at System.Threading.Tasks.Task.InnerInvoke() at System.Threading.Tasks.Task.InnerInvokeWithArg(Task childTask) at System.Threading.Tasks.Task.<>c__DisplayClass7.<ExecuteSelfReplicating>b__ 6(Object ) --- End of inner exception stack trace --- at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceled Exceptions) at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationTo ken cancellationToken) at System.Threading.Tasks.Parallel.ForWorker[TLocal](Int32 fromInclusive, Int 32 toExclusive, ParallelOptions parallelOptions, Action`1 body, Action`2 bodyWit hState, Func`4 bodyWithLocal, Func`1 localInit, Action`1 localFinally) at System.Threading.Tasks.Parallel.ForEachWorker[TSource,TLocal](TSource[] ar ray, ParallelOptions parallelOptions, Action`1 body, Action`2 bodyWithState, Act ion`3 bodyWithStateAndIndex, Func`4 bodyWithStateAndLocal, Func`5 bodyWithEveryt hing, Func`1 localInit, Action`1 localFinally) at System.Threading.Tasks.Parallel.ForEachWorker[TSource,TLocal](IEnumerable` 1 source, ParallelOptions parallelOptions, Action`1 body, Action`2 bodyWithState , Action`3 bodyWithStateAndIndex, Func`4 bodyWithStateAndLocal, Func`5 bodyWithE verything, Func`1 localInit, Action`1 localFinally) at System.Threading.Tasks.Parallel.ForEach[TSource](IEnumerable`1 source, Act ion`1 body) at SimpleChartParser.AppAnnieParser.ParseDetails() in c:\users\nhn60\document s\visual studio 2010\Projects\FunToolPack\SimpleChartParser\AppAnnieParser.cs:li ne 80 at SimpleChartParser.Program.Main(String[] args) in c:\users\nhn60\documents\ visual studio 2010\Projects\FunToolPack\SimpleChartParser\Program.cs:line 15

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• Why can't the style I have within a control template use templatebinding?

  - by Justin

  I have this control template that I am writing: <Style TargetType="{x:Type controls:InfoBar}"> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type controls:InfoBar}"> <Border Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}"> <StackPanel> <Grid> <Grid.Resources> <Style TargetType="{x:Type TextBlock}"> <Setter Property="FontFamily" Value="{TemplateBinding FontFamily}" /> <Setter Property="FontSize" Value="{TemplateBinding FontSize}" /> <Setter Property="Foreground" Value="{TemplateBinding Foreground}" /> </Style> </Grid.Resources> <Grid.ColumnDefinitions> <ColumnDefinition /> <ColumnDefinition /> <ColumnDefinition /> </Grid.ColumnDefinitions> <ItemsControl Grid.Column="0" ItemsSource="{TemplateBinding LeftInfoBarTextBlockCollection}"> <ItemsControl.ItemsPanel> <ItemsPanelTemplate> <WrapPanel /> </ItemsPanelTemplate> </ItemsControl.ItemsPanel> </ItemsControl> <ItemsControl Grid.Column="1" ItemsSource="{TemplateBinding MiddleInfoBarTextBlockCollection}"> <ItemsControl.ItemsPanel> <ItemsPanelTemplate> <WrapPanel /> </ItemsPanelTemplate> </ItemsControl.ItemsPanel> </ItemsControl> <ItemsControl Grid.Column="2" ItemsSource="{TemplateBinding RightInfoBarTextBlockCollection}"> <ItemsControl.ItemsPanel> <ItemsPanelTemplate> <WrapPanel /> </ItemsPanelTemplate> </ItemsControl.ItemsPanel> </ItemsControl> </Grid> </StackPanel> </Border> </ControlTemplate> </Setter.Value> </Setter> </Style> This section of xaml is throwing member is not valid because it does not contain a valid type name. exceptions for the template bindings on FontFamily, FontSize and Foreground. <Grid.Resources> If I change it to this: <Grid.Resources> It will build, but when I debug it, I get this XmlParseExeption: Set property 'System.Windows.Setter.Value' threw an exception. If I change controls:InfoBar to Control, which InfoBar inherits from, I get the same exception. What am I doing wrong?

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• How to kill android application using android code?

  - by Natarajan M

  I am develoing small android application in eclipse. In that project i kill the running process in android, i got the Permission Denial error. how can i solve this problem in android. Anybody help for this problem.... THIS IS MY CODE package com.example.nuts; import java.util.Iterator; import java.util.List; import android.app.Activity; import android.app.ActivityManager; import android.app.ActivityManager.RunningAppProcessInfo; import android.content.Context; import android.content.pm.PackageManager; import android.os.Bundle; import android.telephony.SmsManager; import android.widget.Toast; import android.*; public class killprocess extends Activity { SmsManager smsManager = SmsManager.getDefault(); Recivesms rms=new Recivesms(); String Number=""; int pid=0; String appname=""; protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); try { Number=Recivesms.senderNum; pid=Integer.parseInt(Recivesms.struid); appname=getAppName(pid); Toast.makeText(getBaseContext(),"App Name is "+appname, Toast.LENGTH_LONG).show(); ActivityManager am = (ActivityManager) getSystemService(Activity.ACTIVITY_SERVICE); List<RunningAppProcessInfo> processes = am.getRunningAppProcesses(); if (processes != null){ for (int i=0; i<processes.size(); i++){ RunningAppProcessInfo temp = processes.get(i); String pName = temp.processName; if (pName.equals(appname)) { Toast.makeText(getBaseContext(),"App Name is matched "+appname+" "+pName, Toast.LENGTH_LONG).show(); int pid1 = android.os.Process.getUidForName(pName); //android.os.Process.killProcess(pid1); am.killBackgroundProcesses(pName); Toast.makeText(getBaseContext(), "Killed successfully....", Toast.LENGTH_LONG).show(); } } } smsManager.sendTextMessage(Number, null,"Your process Successfully killed..." , null,null); }catch(Exception e) { Toast.makeText(getBaseContext(),e.getMessage(), Toast.LENGTH_LONG).show(); } } private String getAppName(int Pid) { String processName = ""; ActivityManager am = (ActivityManager)this.getSystemService(ACTIVITY_SERVICE); List l = am.getRunningAppProcesses(); Iterator i = l.iterator(); PackageManager pm = this.getPackageManager(); while(i.hasNext()) { ActivityManager.RunningAppProcessInfo info = (ActivityManager.RunningAppProcessInfo)(i.next()); try { if(info.pid == Pid) { CharSequence c = pm.getApplicationLabel(pm.getApplicationInfo(info.processName, PackageManager.GET_META_DATA)); //Log.d("Process", "Id: "+ info.pid +" ProcessName: "+ info.processName +" Label: "+c.toString()); //processName = c.toString(); processName = info.processName; } } catch(Exception e) { //Log.d("Process", "Error>> :"+ e.toString()); } } return processName; } } After executing the code. i got the following error... Permission Denial: killBackgroundProcess() from pid=894, uid=10052 requires android.permission.KILL_BACKGROUND_PROCESSES Also i put the following line on manifest file <uses-permission android:name="android.permission.KILL_BACKGROUND_PROCESS" /> Anybody help for how to solve this problem... Thanking you....

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• Android inserting into SQLite JSON object

  - by Nizmon

  I'm trying to insert the below json response from a server into my sqlite DB and then read from the DB. The problem I am getting is that when I run my code it compiles fine and runs with no errors. But when trying to read from the DB I just get back what seems like an empty string so I know that the table is being created. I have the correct permissions within the manifest. I have also reference all my classes within there. {"locations": [{"locations":"Newcastle","location_id":"1"},{"locations":"London","location_id":"2"},{"locations":"Sunderland","location_id":"3"}]} Below where I use: Log.v("one", one); Log.v("two", two); below It only prints out the first set within the JSON object so Newcastle and 1. I don't get any errors at all which is stumping me. When I call the method getName within the Location class I just seem to get a blank string back! // This class creates the table as well as inserts and returns data from the sqlite DB public class Location { private DatabaseHelper mDbHelper; private SQLiteDatabase mDb; private final Context mCtx; private static final String vd_location = ("CREATE TABLE " + TABLE_VD_LOCATION + " (" + LOCATION + " TEXT," + LOCATION_ID + " TEXT " +");"); private static class DatabaseHelper extends SQLiteOpenHelper { DatabaseHelper(Context context) { super(context, DATABASE_NAME, null, DATABASE_VERSION); } @Override public void onCreate(SQLiteDatabase db) { db.execSQL(vd_location); } @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { } } public Location(Context ctx) { this.mCtx = ctx; } public Location open() throws SQLException { this.mDbHelper = new DatabaseHelper(this.mCtx); this.mDb = this.mDbHelper.getWritableDatabase(); return this; } public void close() { this.mDbHelper.close(); } public void addOffer (JSONObject json){ try{ JSONArray earthquakes = json.getJSONArray("offers"); for(int i=0;i<earthquakes.length();i++){ open(); JSONObject e = earthquakes.getJSONObject(i); String one = e.getString("locations"); String two = e.getString("location_id"); Log.v("one", one); Log.v("two", two); mDb.execSQL("INSERT INTO " + TABLE_VD_LOCATION + " ( locations, location_id ) " + "VALUES (?, ?)", new Object [] { e.getString("locations"), e.getString("location_id")}); close(); } }catch(Exception e){ }finally{ close(); } } public String getName(long l) throws SQLException{ String[] columns = new String[]{ LOCATION, LOCATION_ID}; Cursor c = mDb.query(TABLE_VD_LOCATION, columns, null, null, null, null, null); String result = ""; int iRow = c.getColumnIndex(LOCATION); int iName = c.getColumnIndex(LOCATION_ID); for (c.moveToFirst(); !c.isAfterLast(); c.moveToNext()){ result = result + c.getString(iRow) + " " + c.getString(iName) + " " + "\n"; } return result; } } // This code reads from the DB, this is just some very hacked together code so excuse it, it also works when used on other tables public void getData(){ boolean didItWork = true; try { Location loc = new Location(this); loc.open(); String data = loc.getName(0); loc.close(); Dialog t = new Dialog(this); t.setTitle("get" + data); t.show(); } catch (Exception e) { didItWork = false; String error = e.toString(); Dialog d = new Dialog(this); d.setTitle("Dang it!"); TextView tv = new TextView(this); tv.setText(error); d.setContentView(tv); d.show(); } finally { if (didItWork) { Dialog d = new Dialog(this); d.setTitle("Heck Yea!"); TextView tv = new TextView(this); tv.setText("Success"); d.setContentView(tv); d.show(); //entry.close(); } } }

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• How to upload Image on Android?

  - by Mattiah85

  I havve to upload image from my SD card to PHP server. I have read a lot of articles and topics but I have some problems... First I have use that code: HttpURLConnection connection = null; DataOutputStream outputStream = null; //DataInputStream inputStream = null; String urlServer = hostName+"Upload"; String lineEnd = "\r\n"; String twoHyphens = "--"; String boundary = "*****"; String serverResponseMessage; //int serverResponseCode; int bytesRead, bytesAvailable, bufferSize; byte[] buffer; int maxBufferSize = 1*1024*1024; try { showLog("uploading file: " + file); FileInputStream fileInputStream = new FileInputStream(new File(pictureFileDir+"/"+file) ); URL url = new URL(urlServer); connection = (HttpURLConnection) url.openConnection(); // Allow Inputs &amp; Outputs. connection.setDoInput(true); connection.setDoOutput(true); connection.setUseCaches(false); // Set HTTP method to POST. connection.setRequestMethod("POST"); connection.setRequestProperty("Connection", "Keep-Alive"); connection.setRequestProperty("Content-Type", "multipart/form-data;boundary="+boundary); outputStream = new DataOutputStream( connection.getOutputStream() ); outputStream.writeBytes(twoHyphens + boundary + lineEnd); outputStream.writeBytes("Content-Disposition: form-data; name=\"uploaded_file\";filename=\"" + file +"\"" + lineEnd); outputStream.writeBytes(lineEnd); bytesAvailable = fileInputStream.available(); bufferSize = Math.min(bytesAvailable, maxBufferSize); buffer = new byte[bufferSize]; // Read file bytesRead = fileInputStream.read(buffer, 0, bufferSize); while (bytesRead > 0) { outputStream.write(buffer, 0, bufferSize); bytesAvailable = fileInputStream.available(); bufferSize = Math.min(bytesAvailable, maxBufferSize); bytesRead = fileInputStream.read(buffer, 0, bufferSize); } outputStream.writeBytes(lineEnd); outputStream.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd); // Responses from the server (code and message) //serverResponseCode = connection.getResponseCode(); serverResponseMessage = connection.getResponseMessage(); showLog("server response: " + serverResponseMessage); fileInputStream.close(); outputStream.flush(); outputStream.close(); } catch (Exception ex) { ex.printStackTrace(); } but server response 200/OK and no file was on destination server... After i have read about Multipart: try { HttpParams params = new BasicHttpParams(); params.setParameter(CoreProtocolPNames.PROTOCOL_VERSION, HttpVersion.HTTP_1_1); DefaultHttpClient mHttpClient = new DefaultHttpClient(params); File image = new File(pictureFileDir + "/" + filename); HttpPost httppost = new HttpPost(hostName+"Upload"); MultipartEntity multipartEntity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE); multipartEntity.addPart("Image", new FileBody(image)); httppost.setEntity(multipartEntity); mHttpClient.execute(httppost, new PhotoUploadResponseHandler()); } catch (Exception e) { e.printStackTrace(); } but then a i have such LOG in LogCat and nothing else... 06-04 06:50:52.277: D/dalvikvm(1584): DexOpt: couldn't find static field Lorg/apache/http/message/BasicHeaderValueParser;.INSTANCE 06-04 06:50:52.277: W/dalvikvm(1584): VFY: unable to resolve static field 6688 (INSTANCE) in Lorg/apache/http/message/BasicHeaderValueParser; 06-04 06:50:52.277: D/dalvikvm(1584): VFY: replacing opcode 0x62 at 0x001b ServerSide Script: $target_path = "uploads"; $target_path = $target_path . basename( $_FILES['Image']); if(move_uploaded_file($_FILES['tmp_name'], $file_path)) { echo "success"; } else{ echo "fail"; } why? What is the simplest way to upload image?

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• Visual Studio reports that not all code path return a value, even though they do

  - by chris12892

  I have an API in NETMF C# that I am writing that includes a function to send an HTTP request. For those who are familiar with NETMF, this is a heavily modified version of the "webClient" example, which a simple application that demonstrates how to submit an HTTP request, and recive a response. In the sample, it simply prints the response and returns void,. In my version, however, I need it to return the HTTP response. For some reason, Visual Studio reports that not all code paths return a value, even though, as far as I can tell, they do. Here is my code... /// <summary> /// This is a modified webClient /// </summary> /// <param name="url"></param> private string httpRequest(string url) { // Create an HTTP Web request. HttpWebRequest request = HttpWebRequest.Create(url) as HttpWebRequest; // Set request.KeepAlive to use a persistent connection. request.KeepAlive = true; // Get a response from the server. WebResponse resp = request.GetResponse(); // Get the network response stream to read the page data. if (resp != null) { Stream respStream = resp.GetResponseStream(); string page = ""; byte[] byteData = new byte[4096]; char[] charData = new char[4096]; int bytesRead = 0; Decoder UTF8decoder = System.Text.Encoding.UTF8.GetDecoder(); int totalBytes = 0; // allow 5 seconds for reading the stream respStream.ReadTimeout = 5000; // If we know the content length, read exactly that amount of // data; otherwise, read until there is nothing left to read. if (resp.ContentLength != -1) { for (int dataRem = (int)resp.ContentLength; dataRem > 0; ) { Thread.Sleep(500); bytesRead = respStream.Read(byteData, 0, byteData.Length); if (bytesRead == 0) throw new Exception("Data laes than expected"); dataRem -= bytesRead; // Convert from bytes to chars, and add to the page // string. int byteUsed, charUsed; bool completed = false; totalBytes += bytesRead; UTF8decoder.Convert(byteData, 0, bytesRead, charData, 0, bytesRead, true, out byteUsed, out charUsed, out completed); page = page + new String(charData, 0, charUsed); } page = new String(System.Text.Encoding.UTF8.GetChars(byteData)); } else throw new Exception("No content-Length reported"); // Close the response stream. For Keep-Alive streams, the // stream will remain open and will be pushed into the unused // stream list. resp.Close(); return page; } } Any ideas? Thanks...

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• Java ME scorecard with vector and multiple input fields/screens

  - by proximity

  I have made a scorecard with 5 holes, for each a input field (shots), and a image is shown. The input should be saved into a vector and shown on each hole, eg. hole 2: enter shots, underneath it "total shots: 4" (if you have made 4 shots on hole 1). In the end I would need a sum up of all shots, eg. Hole 1: 4 Hole 2: 3 Hole 3: 2 ... Total: 17 Could someone please help me with this task? { f = new Form("Scorecard"); d = Display.getDisplay(this); mTextField = new TextField("Shots:", "", 2, TextField.NUMERIC); f.append(mTextField); mStatus = new StringItem("Hole 1:", "Par 3, 480m"); f.append(mStatus); try { Image j = Image.createImage("/hole1.png"); ImageItem ii = new ImageItem("", j, 3, "Hole 1"); f.append(ii); } catch (java.io.IOException ioe) {} catch (Exception e) {} f.addCommand(mBackCommand); f.addCommand(mNextCommand); f.addCommand(mExitCommand); f.setCommandListener(this); Display.getDisplay(this).setCurrent(f); } public void startApp() { mBackCommand = new Command("Back", Command.BACK, 0); mNextCommand = new Command("Next", Command.OK, 1); mExitCommand = new Command("Exit", Command.EXIT, 2); } public void pauseApp() { } public void destroyApp(boolean unconditional) { } public void commandAction(Command c, Displayable d) { if (c == mExitCommand) { destroyApp(true); notifyDestroyed(); } else if ( c == mNextCommand) { // -> go to next hole input! save the mTextField input into a vector. } } } ------------------------------ Full code --------------------------------- import java.util.; import javax.microedition.midlet.; import javax.microedition.lcdui.*; public class ScorerMIDlet extends MIDlet implements CommandListener { private Command mExitCommand, mBackCommand, mNextCommand; private Display d; private Form f; private TextField mTextField; private Alert a; private StringItem mHole1; private int b; // repeat holeForm for all five holes and add the input into a vector or array. Display the values in the end after asking for todays date and put todays date in top of the list. Make it possible to go back in the form, eg. hole 3 - hole 2 - hole 1 public void holeForm(int b) { f = new Form("Scorecard"); d = Display.getDisplay(this); mTextField = new TextField("Shots:", "", 2, TextField.NUMERIC); f.append(mTextField); mHole1 = new StringItem("Hole 1:", "Par 5, 480m"); f.append(mHole1); try { Image j = Image.createImage("/hole1.png"); ImageItem ii = new ImageItem("", j, 3, "Hole 1"); f.append(ii); } catch (java.io.IOException ioe) {} catch (Exception e) {} // Set date&time in the end long now = System.currentTimeMillis(); DateField df = new DateField("Playing date:", DateField.DATE_TIME); df.setDate(new Date(now)); f.append(df); f.addCommand(mBackCommand); f.addCommand(mNextCommand); f.addCommand(mExitCommand); f.setCommandListener(this); Display.getDisplay(this).setCurrent(f); } public void startApp() { mBackCommand = new Command("Back", Command.BACK, 0); mNextCommand = new Command("OK-Next", Command.OK, 1); mExitCommand = new Command("Exit", Command.EXIT, 2); b = 0; holeForm(b); } public void pauseApp() {} public void destroyApp(boolean unconditional) {} public void commandAction(Command c, Displayable d) { if (c == mExitCommand) { destroyApp(true); notifyDestroyed(); } else if ( c == mNextCommand) { holeForm(b); } } }

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• Asus me302c create script crash

  - by wxfred

  State beforehand: So far, only Asus me302c would crash when it creates a script. This device can create renderscript context successfully 06-03 10:12:50.509: V/RenderScript_jni(3144): RS compat mode 06-03 10:12:50.509: V/RenderScript(3144): 0x610bbfc0 Launching thread(s), CPUs 4 06-03 10:12:50.549: D/libEGL(3144): loaded /vendor/lib/egl/libEGL_POWERVR_SGX544_115.so 06-03 10:12:50.559: D/libEGL(3144): loaded /vendor/lib/egl/libGLESv1_CM_POWERVR_SGX544_115.so 06-03 10:12:50.559: D/libEGL(3144): loaded /vendor/lib/egl/libGLESv2_POWERVR_SGX544_115.so 06-03 10:12:50.619: D/OpenGLRenderer(3144): Enabling debug mode 0 06-03 10:12:52.869: D/dalvikvm(3144): Rejecting registerization due to ushr-int/lit8 v4, v7, (#19) When create a script, it crashed. 06-03 09:55:09.859: D/basefilter(26682): ===createScript=== 06-03 09:55:09.869: E/RenderScript(26682): Unable to open shared library (/data/data/xxx.xxxxxxxxxxx.xxxxxxxxx.xxxxx.xxxx//lib/librs.basefilter.so): Cannot load library: soinfo_relocate(linker.cpp:975): cannot locate symbol "_Z3dotDv3_fS_" referenced by "librs.basefilter.so"... 06-03 09:55:09.869: E/RenderScript(26682): Unable to open system shared library (/system/lib/librs.basefilter.so): (null) 06-03 09:55:09.869: D/AndroidRuntime(26682): Shutting down VM 06-03 09:55:09.869: W/dalvikvm(26682): threadid=1: thread exiting with uncaught exception (group=0x418b9e10) 06-03 09:55:09.869: E/AndroidRuntime(26682): FATAL EXCEPTION: main 06-03 09:55:09.869: E/AndroidRuntime(26682): android.support.v8.renderscript.RSRuntimeException: Loading of ScriptC script failed. 06-03 09:55:09.869: E/AndroidRuntime(26682): at android.support.v8.renderscript.ScriptC.<init>(ScriptC.java:69) 06-03 09:55:09.869: E/AndroidRuntime(26682): at xxx.xxxxxxxxxxx.xxxxxxxxx.xxxxxxxxxx.xxxxxx.ScriptC_BaseFilter.<init>(ScriptC_BaseFilter.java:41) 06-03 09:55:09.869: E/AndroidRuntime(26682): at xxx.xxxxxxxxxxx.xxxxxxxxx.xxxxxxxxxx.xxxxxx.ScriptC_BaseFilter.<init>(ScriptC_BaseFilter.java:35) 06-03 09:55:09.869: E/AndroidRuntime(26682): at xxx.xxxxxxxxxxx.xxxxxxxxx.xxxxxxxxxx.xxxxxx.xxxxxx.TeethWhiteningRSFilter.onCreateScript(TeethWhiteningRSFilter.java:19) 06-03 09:55:09.869: E/AndroidRuntime(26682): at xxx.xxxxxxxxxxx.xxxxxxxxx.xxxxxxxxxx.xxxxxx.xxxxxx.TeethWhiteningRSFilter.onCreateScript(TeethWhiteningRSFilter.java:1) 06-03 09:55:09.869: E/AndroidRuntime(26682): at xxx.xxxxxxxxxxx.xxxxxxxxx.xxxxxxxxxx.BaseRSFilter.createScript(BaseRSFilter.java:39) 06-03 09:55:09.869: E/AndroidRuntime(26682): at xxx.xxxxxxxxxxx.xxxxxxxxx.xxxxxxxxxx.RSFilterEngine.addFilter(RSFilterEngine.java:76) 06-03 09:55:09.869: E/AndroidRuntime(26682): at xxx.xxxxxxxxxxx.xxxxxxxxx.xxxxx.xxxx.BeautyActivity.changeBeautyEffect(BeautyActivity.java:277) 06-03 09:55:09.869: E/AndroidRuntime(26682): at xxx.xxxxxxxxxxx.xxxxxxxxx.xxxxx.xxxx.BeautyActivity$2.onClick(BeautyActivity.java:100) 06-03 09:55:09.869: E/AndroidRuntime(26682): at com.android.internal.app.AlertController$ButtonHandler.handleMessage(AlertController.java:166) 06-03 09:55:09.869: E/AndroidRuntime(26682): at android.os.Handler.dispatchMessage(Handler.java:99) 06-03 09:55:09.869: E/AndroidRuntime(26682): at android.os.Looper.loop(Looper.java:152) 06-03 09:55:09.869: E/AndroidRuntime(26682): at android.app.ActivityThread.main(ActivityThread.java:5132) 06-03 09:55:09.869: E/AndroidRuntime(26682): at java.lang.reflect.Method.invokeNative(Native Method) 06-03 09:55:09.869: E/AndroidRuntime(26682): at java.lang.reflect.Method.invoke(Method.java:511) 06-03 09:55:09.869: E/AndroidRuntime(26682): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793) 06-03 09:55:09.869: E/AndroidRuntime(26682): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560) 06-03 09:55:09.869: E/AndroidRuntime(26682): at dalvik.system.NativeStart.main(Native Method) Now, I will post some related infomation. project.properties ... renderscript.target=9 renderscript.support.mode=true sdk.buildtools=19.0.3 device info Brand: Asus Model: ME302C OS: 4.2.2 CPU: Intel(R) Atom(TM) CPU Z2560 @1.60GHz GPU Renderer PowerVR SGX 544MP Finally, by the way, the same code runs well on Galaxy s2, s4, note 2.

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• How do I Insert Record MVVM through WCF

  - by DG KOL

  Hello, I’m new in MVVM Pattern (Using Galasoft MVVM Light toolkit). I’ve created a Test Project where I want to fetch some records from Database through WCF. This is working fine but I’ve failed to insert new record from View; Here is My Code: Database Table Name: TestUser (First Name, LastName) WCF (NWCustomer) Two Methods Public List<TestUser> GetAllUsers() [“LINQ2SQL Operation”] Public bool AddUser(TestUser testuser) Public bool AddUser(TestUser testuser) { try { using (DBDataContext db = new DBDataContext()) { TestUser test = new TestUser() { FirstName = testuser.FirstName, LastName = testuser.LastName }; db.TestUser.InsertOnSubmit(test); db.SubmitChanges(); } } catch (Exception ex) { return false; } return true; } Silverlight Project MODEL consists ITestUserService.cs TestUserService.cs public void AddTestTable(TestTableViewModel testuser, Action<bool> callback) { NWCustomerClient client = new NWCustomerClient("BasicHttpBinding_NWCustomer"); client.AddTestUserCompleted += (s, e) => { var userCallback = e.UserState as Action<bool>; if (userCallback == null) { return; } if (e.Error == null) { userCallback(e.Result); return; } userCallback(false); }; client.AddTestUserAsync(testuser.Model); } VIEWMODEL TestUserViewModel public TestUser User { get; private set; } public const string DirtyVisibilityPropertyName = "DirtyVisibility"; private Visibility _dirty = Visibility.Collapsed; public Visibility DirtyVisibility { get { return _dirty; } set { if (_dirty == value) { return; } _dirty = value; RaisePropertyChanged(DirtyVisibilityPropertyName); } } public TestUserViewModel (TestUser user) { User = user; user.PropertyChanged += (s, e) => { DirtyVisibility = Visibility.Visible; }; } MainViewModel public ObservableCollection<TestUserViewModel> TestTables { get; private set; } public const string ErrorMessagePropertyName = "ErrorMessage"; private string _errorMessage = string.Empty; public string ErrorMessage { get { return _errorMessage; } set { if (_errorMessage == value) { return; } _errorMessage = value; RaisePropertyChanged(ErrorMessagePropertyName); } } private ITestUserService _service; public RelayCommand< TestUserViewModel> AddTestUserRecord { get; private set; } public MainTestTableViewModel (ICustomerService service) { _service = service; TestTables = new ObservableCollection<TestTableViewModel>(); service.GetAllTestTable(HandleResult); } private void HandleResult(IEnumerable<TestTable> result, Exception ex) { TestTables.Clear(); if (ex != null) { //Error return; } if (result == null) { return; } foreach (var test in result) { var table = new TestTableViewModel(test); TestTables.Add(table); } } XAML <Grid x:Name="LayoutRoot"> <StackPanel> <TextBox Text="FirstName" /> <TextBox Text="LastName" /> <Button Content="Add Record" Command="{Binding AddTestUserRecord}" /> </StackPanel> </Grid> I want to add records into TestTable (Database Table). How do I insert record? In XAML two text box and a button control is present. Thanking you. DG

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• One to many in nhibernate mapping problem

  - by chobo2

  Hi I have this using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace Demo.Framework.Domain { public class UserEntity { public virtual Guid UserId { get; protected set; } } } using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace TDemo.Framework.Domain { public class Users : UserEntity { public virtual string OpenIdIdentifier { get; set; } public virtual string Email { get; set; } public virtual IList<Movie> Movies { get; set; } } } using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace Demo.Framework.Domain { public class Movie { public virtual int MovieId { get; set; } public virtual Guid UserId { get; set; } // not sure if I should inherit UserEntity public virtual string Title { get; set; } public virtual DateTime ReleaseDate { get; set; } // in my ms sql 2008 database I want this to be just a Date type. Not sure how to do that. public virtual int Upc { get; set; } } } <?xml version="1.0" encoding="utf-8" ?> <hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" assembly="Demo.Framework" namespace="Demo.Framework.Domain"> <class name="Users"> <id name="UserId"> <generator class="guid.comb" /> </id> <property name="OpenIdIdentifier" not-null="true" /> <property name="Email" not-null="true" /> </class> <subclass name="Movie"> <list name="Movies" cascade="all-delete-orphan"> <key column="MovieId" /> <index column="MovieIndex" /> // not sure what index column is really. <one-to-many class="Movie"/> </list> </subclass> </hibernate-mapping> <?xml version="1.0" encoding="utf-8" ?> <hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" assembly="Demo.Framework" namespace="Demo.Framework.Domain"> <class name="Movie"> <id name="MovieId"> <generator class="native" /> </id> <property name="Title" not-null="true" /> <property name="ReleaseDate" not-null="true" type="Date" /> <property name="Upc" not-null="true" /> <property name="UserId" not-null="true" type="Guid"/> </class> </hibernate-mapping> I get this error 'extends' attribute is not found or is empty. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: NHibernate.MappingException: 'extends' attribute is not found or is empty. Source Error: Line 17: { Line 18: Line 19: var nhConfig = new Configuration().Configure(); Line 20: var sessionFactory = nhConfig.BuildSessionFactory(); Line 21:

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• Launching an Activity from a Service

  - by nldev

  When I am trying to launch a call activity from a Service, I get a NullPointerException. Here is my code: Intent callIntent = new Intent(Intent.ACTION_CALL); callIntent.setData(Uri.parse("tel:" + number)); callIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); startActivity(callIntent); I get the exception on the startActivity line. I tried to use getApplication.startActivity and getApplicationContext.startActivity but no luck. Any ideas? edit : Maybe some usefull info: I am trying to create a service that will run on the background and scan sensor data, when a certain signal is given i would like to maken an automated call to a number. edit : full adb error code: 03-31 09:04:10.214: ERROR/AndroidRuntime(1896): Uncaught handler: thread main exiting due to uncaught exception 03-31 09:04:10.226: ERROR/AndroidRuntime(1896): java.lang.RuntimeException: Unable to instantiate service dfz.epilepsiedetector.services.DetectionService: java.lang.NullPointerException 03-31 09:04:10.226: ERROR/AndroidRuntime(1896): at android.app.ActivityThread.handleCreateService(ActivityThread.java:2668) 03-31 09:04:10.226: ERROR/AndroidRuntime(1896): at android.app.ActivityThread.access$3100(ActivityThread.java:116) 03-31 09:04:10.226: ERROR/AndroidRuntime(1896): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1846) 03-31 09:04:10.226: ERROR/AndroidRuntime(1896): at android.os.Handler.dispatchMessage(Handler.java:99) 03-31 09:04:10.226: ERROR/AndroidRuntime(1896): at android.os.Looper.loop(Looper.java:123) 03-31 09:04:10.226: ERROR/AndroidRuntime(1896): at android.app.ActivityThread.main(ActivityThread.java:4203) 03-31 09:04:10.226: ERROR/AndroidRuntime(1896): at java.lang.reflect.Method.invokeNative(Native Method) 03-31 09:04:10.226: ERROR/AndroidRuntime(1896): at java.lang.reflect.Method.invoke(Method.java:521) 03-31 09:04:10.226: ERROR/AndroidRuntime(1896): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791) 03-31 09:04:10.226: ERROR/AndroidRuntime(1896): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549) 03-31 09:04:10.226: ERROR/AndroidRuntime(1896): at dalvik.system.NativeStart.main(Native Method) 03-31 09:04:10.226: ERROR/AndroidRuntime(1896): Caused by: java.lang.NullPointerException 03-31 09:04:10.226: ERROR/AndroidRuntime(1896): at android.content.ContextWrapper.getPackageName(ContextWrapper.java:120) 03-31 09:04:10.226: ERROR/AndroidRuntime(1896): at android.content.ComponentName.<init>(ComponentName.java:75) 03-31 09:04:10.226: ERROR/AndroidRuntime(1896): at android.content.Intent.<init>(Intent.java:2302) 03-31 09:04:10.226: ERROR/AndroidRuntime(1896): at dfz.epilepsiedetector.services.DetectionService.<init>(DetectionService.java:35) 03-31 09:04:10.226: ERROR/AndroidRuntime(1896): at java.lang.Class.newInstanceImpl(Native Method) 03-31 09:04:10.226: ERROR/AndroidRuntime(1896): at java.lang.Class.newInstance(Class.java:1472) 03-31 09:04:10.226: ERROR/AndroidRuntime(1896): at android.app.ActivityThread.handleCreateService(ActivityThread.java:2665) edit Trimmed class code: `public class DetectionService extends IntentService implements SensorEventListener { private SensorManager mSensorManager; private Sensor mAccelerometer; private boolean hasSeizure = false; private final int POLLS_PER_SECOND = 10; public DetectionService() { super("EpilepsionDetectionService"); //mSensorManager = (SensorManager)getSystemService(SENSOR_SERVICE); // mAccelerometer = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER); /*Intent callIntent = new Intent(Intent.ACTION_CALL); callIntent.setData(Uri.parse("tel:" + "+31648363944")); callIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);*/ Intent callIntent = new Intent(DetectionService.this, InformationActivity.class); callIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); getApplication().startActivity(callIntent); //((Activity) getContext()).startActivity(callIntent); }`

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• How to manipulate data after its retrieved via remote database

  - by bMon

  So I've used code examples from all over the net and got my app to accurately call a .php file on my server, retrieve the JSON data, then parse the data, and print it. The problem is that its just printing to the screen for sake of the tutorial I was following, but now I need to use that data in other places and need help figuring out that process. The ultimate goal is to return my db query with map coordinates, then plot them on a google map. I have another app in which I manually plot points on a map, so I'll be integrating this app with that once I can get my head around how to correctly manipulate the data returned. public class Remote extends Activity { /** Called when the activity is first created. */ TextView txt; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); // Create a crude view - this should really be set via the layout resources // but since its an example saves declaring them in the XML. LinearLayout rootLayout = new LinearLayout(getApplicationContext()); txt = new TextView(getApplicationContext()); rootLayout.addView(txt); setContentView(rootLayout); // Set the text and call the connect function. txt.setText("Connecting..."); //call the method to run the data retreival txt.setText(getServerData(KEY_121)); } public static final String KEY_121 = "http://example.com/mydbcall.php"; private String getServerData(String returnString) { InputStream is = null; String result = ""; //the year data to send //ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(); //nameValuePairs.add(new BasicNameValuePair("year","1970")); try{ HttpClient httpclient = new DefaultHttpClient(); HttpPost httppost = new HttpPost(KEY_121); 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 try{ BufferedReader reader = new BufferedReader(new InputStreamReader(is,"iso-8859-1"),8); StringBuilder sb = new StringBuilder(); String line = null; while ((line = reader.readLine()) != null) { sb.append(line + "\n"); } is.close(); result=sb.toString(); }catch(Exception e){ Log.e("log_tag", "Error converting result "+e.toString()); } //parse json data try{ JSONArray jArray = new JSONArray(result); for(int i=0;i<jArray.length();i++){ JSONObject json_data = jArray.getJSONObject(i); Log.i("log_tag","longitude: "+json_data.getDouble("longitude")+ ", latitude: "+json_data.getDouble("latitude") ); //Get an output to the screen returnString += "\n\t" + jArray.getJSONObject(i); } }catch(JSONException e){ Log.e("log_tag", "Error parsing data "+e.toString()); } return returnString; } } So the code: returnString += "\n\t" + jArray.getJSONObject(i); is what is currently printing to the screen. What I have to figure out is how to get the data into something I can reference in other spots in the program, and access the individual elements ie: double longitude = jArray.getJSONObject(3).longitude; or something to that effect.. I figure the class getServerData will have to return a Array type or something? Any help is appreciated, thanks.

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• Java File I/O problems

  - by dwwilson66

  This is my first time working with file i/o in java, and it's not working. The section of the program where I parse individual lines and output a semicolon delimited line works like a charm when I hardcode a file and display on screen. Whne I try to write to a file public static OutputStream... errors out as an illegal start to expression, and I've been unable to get the program to step through an entire directory of files instead of one at a time. Where I'm not clear: I'm note setting an output filename anywhere...whare am I supposed to do that? The path variable won't pass. What's the proper format for a path? Can anyone see what I need to debug here? import java.io.*; public class FileRead { public static void main(String args[]) { try { // Open the file(s) // single file works OK FileInputStream fstream = new FileInputStream("testfile.txt"); Path startingDir = R:\Data\cs\RoboHelp\CorrLib\Output\Production\WebHelp; PrintFiles pf = new PrintFiles(); Files.walkFileTree(startingDir, pf); // Get the object of DataInputStream DataInputStream in = new DataInputStream(fstream); BufferedReader br = new BufferedReader(new InputStreamReader(in)); String inputLine; String desc = ""; String docNo = ""; String replLtr = ""; String specCond = ""; String states = ""; String howGen = ""; String whenGen = ""; String owner = ""; String lastChange = ""; //Read File Line By Line while ((inputLine = br.readLine()) != null) { int testVal=0; int stringMax = inputLine.length(); // if(inputLine.startsWith("Description")) {desc = inputLine.substring(13,inputLine.length());} else if(inputLine.startsWith("Reference Number")) {docNo = inputLine.substring(20,inputLine.length());} else if(inputLine.startsWith("Replaces Letter")) {replLtr = inputLine.substring(17,inputLine.length());} else if(inputLine.startsWith("Special Conditions")) {specCond = inputLine.substring(21,inputLine.length());} else if(inputLine.startsWith("States Applicable")) {states = inputLine.substring(19,inputLine.length());} else if(inputLine.startsWith("How Generated")) {howGen = inputLine.substring(15,inputLine.length());} else if(inputLine.startsWith("When Generated")) {whenGen = inputLine.substring(16,inputLine.length());} else if(inputLine.startsWith("Owner")) {owner = inputLine.substring(7,inputLine.length());} else if(inputLine.startsWith("Last Change Date")) {lastChange = inputLine.substring(17,inputLine.length());} } //close while loop // Print the content on the console String outStr1 = (desc + ";" + docNo + ";" + replLtr + ";" + specCond + ";" + states); String outStr2 = (";" + howGen + ";" + whenGen + ";" + owner + ";" + lastChange); String outString = (outStr1 + outStr2); System.out.print(inputLine + "\n" + outString); String lineItem = (outStr1+outStr2); // try (OutputStream out = new BufferedOutputStream (logfile.newOutputStream(CREATE, APPEND))) { out.write(lineItem, 0, lineItem.length); } catch (IOException x) { System.err.println(x); } public static OutputStream newOutputStream() throws IOException { // append to an existing file, create file if it doesn't initially exist out = Files.newOutputStream(c:, CREATE, APPEND); } //Close the input stream in.close(); } catch (Exception e) { //Catch exception if any System.err.println("Error: " + e.getMessage()); } } }

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• Using Dynamic Proxies to centralize JPA code

  - by Daziplqa

  Hi All, Actually, This is not a question but really I need your opinions in a matter... I put his post here because I know you always active, so please don't consider this a bad question and share me your opinions. I've used Java dynamic proxies to Centralize The code of JPA that I used in a standalone mode, and Here's the dynamic proxy code: package com.forat.service; import java.lang.reflect.InvocationHandler; import java.lang.reflect.Method; import java.lang.reflect.Proxy; import java.util.logging.Level; import java.util.logging.Logger; import javax.persistence.EntityManager; import javax.persistence.EntityManagerFactory; import javax.persistence.EntityTransaction; import javax.persistence.Persistence; import com.forat.service.exceptions.DAOException; /** * Example of usage : * <pre> * OnlineFromService onfromService = * (OnlineFromService) DAOProxy.newInstance(new OnlineFormServiceImpl()); * try { * Student s = new Student(); * s.setName("Mohammed"); * s.setNationalNumber("123456"); * onfromService.addStudent(s); * }catch (Exception ex) { * System.out.println(ex.getMessage()); * } *</pre> * @author mohammed hewedy * */ public class DAOProxy implements InvocationHandler{ private Object object; private Logger logger = Logger.getLogger(this.getClass().getSimpleName()); private DAOProxy(Object object) { this.object = object; } public static Object newInstance(Object object) { return Proxy.newProxyInstance(object.getClass().getClassLoader(), object.getClass().getInterfaces(), new DAOProxy(object)); } @Override public Object invoke(Object proxy, Method method, Object[] args) throws Throwable { EntityManagerFactory emf = null; EntityManager em = null; EntityTransaction et = null; Object result = null; try { emf = Persistence.createEntityManagerFactory(Constants.UNIT_NAME); em = emf.createEntityManager();; Method entityManagerSetter = object.getClass(). getDeclaredMethod(Constants.ENTITY_MANAGER_SETTER_METHOD, EntityManager.class); entityManagerSetter.invoke(object, em); et = em.getTransaction(); et.begin(); result = method.invoke(object, args); et.commit(); return result; }catch (Exception ex) { et.rollback(); Throwable cause = ex.getCause(); logger.log(Level.SEVERE, cause.getMessage()); if (cause instanceof DAOException) throw new DAOException(cause.getMessage(), cause); else throw new RuntimeException(cause.getMessage(), cause); }finally { em.close(); emf.close(); } } } And here's the link that contains more info (http://m-hewedy.blogspot.com/2010/04/using-dynamic-proxies-to-centralize-jpa.html) (plz don't consider this as adds, as I can copy and past the entire topic here if you want that) So, Please give me your opinions. Thanks.

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• Get the screen height in Android

  - by Dan Bray

  How can I get the available height of the screen in Android? I need to the height minus the status bar / menu bar or any other decorations that might be on screen and I need it to work for all devices. Also, I need to know this in the onCreate function. I know this question has been asked before but I have already tried their solutions and none of them work. Here are some of the things I have tried: I have tested this code on API 7 - 17. Unfortunately, on API 13 there is extra space at bottom both horizontally and vertically and on API 10, 8, and 7 there is not enough space at the bottom both horizontally and vertically. (I have not tested on obsolete API's): Display display = getWindowManager().getDefaultDisplay(); DisplayMetrics metrics = new DisplayMetrics(); display.getMetrics(metrics); screenWidth = metrics.widthPixels; screenHeight = metrics.heightPixels; TypedValue tv = new TypedValue(); if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) { if (getTheme().resolveAttribute(android.R.attr.actionBarSize, tv, true)) screenHeight -= TypedValue.complexToDimensionPixelSize(tv.data,getResources().getDisplayMetrics()); } int resourceId = getResources().getIdentifier("status_bar_height", "dimen", "android"); if (resourceId > 0) screenHeight -= getResources().getDimensionPixelSize(resourceId); This does not take into account the status bar / menu bar: Display display = getWindowManager().getDefaultDisplay(); screenWidth = display.getWidth(); screenHeight = display.getHeight(); Neither does this: Point size = new Point(); getWindowManager().getDefaultDisplay().getSize(size); screenWidth = size.x; screenHeight = size.y; Nor this: Point size = new Point(); getWindowManager().getDefaultDisplay().getRealSize(size); screenWidth = size.x; screenHeight = size.y; This does not work: Display display = getWindowManager().getDefaultDisplay(); DisplayMetrics metrics = new DisplayMetrics(); display.getMetrics(metrics); // since SDK_INT = 1; screenWidth = metrics.widthPixels; screenHeight = metrics.heightPixels; try { // used when 17 > SDK_INT >= 14; includes window decorations (statusbar bar/menu bar) screenWidth = (Integer) Display.class.getMethod("getRawWidth").invoke(display); screenHeight = (Integer) Display.class.getMethod("getRawHeight").invoke(display); } catch (Exception ignored) { // Do nothing } try { // used when SDK_INT >= 17; includes window decorations (statusbar bar/menu bar) Point realSize = new Point(); Display.class.getMethod("getRealSize", Point.class).invoke(display, realSize); screenWidth = realSize.x; screenHeight = realSize.y; } catch (Exception ignored) { // Do nothing } I then used the following code to subtract the height of the status bar and menu bar from the screen height: int result = 0; int resourceId = getResources().getIdentifier("status_bar_height", "dimen", "android"); if (resourceId > 0) result = getResources().getDimensionPixelSize(resourceId); screenHeight -= result; result = 0; if (screenHeight >= screenWidth) resourceId = getResources().getIdentifier("navigation_bar_height", "dimen", "android"); else resourceId = getResources().getIdentifier("navigation_bar_height_landscape", "dimen", "android"); if (resourceId > 0) result = getResources().getDimensionPixelSize(resourceId); screenHeight -= result; On API 17 it correctly calculates the height of the status bar and menu bar in portrait but not in landscape. On API 10, it returns 0. I need it to work ideally on all devices or minimum API 7. Any help would be greatly appreciated.

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• Why does "return ERROR" only work with exceptions?

  - by ThreaT

  In the struts.xml I use: <result name="error">error</result> Then in my action I use: addActionError("ERROR RETURNED"); return ERROR; When I submit the form then it just goes to a blank page and does nothing. However, if I FORCE an exception to be thrown in the action then it goes to the error page and shows the ActionError message. So am I doing this wrong? If so, how should I tell struts to show an error page using "if statements" instead of relying solely on expensive try catches? EDIT 1: I'm using struts 2 version: 2.1.8.1 EDIT 2: For example, here is my action code that I'm using to test: String test = ""; int number = 0; try { if (number == 1) { System.out.println("number 1: " + number); test = SUCCESS; } else if (number == 2) { System.out.println("number 2: " + number); addActionError("ERROR RETURNED?"); addActionMessage("TESTTEST"); test = ERROR; } else if (number == 3) { System.out.println("number 3: " + number); addActionError("ERROR RETURNED?"); addActionMessage("TESTTEST"); test = INPUT; } else { System.out.println("number 4: " + number); test = LOGIN; } } catch (Exception e) { addActionError("ERROR RETURNED? " + e); } return test; And here is my JSP code: <s:form action="number_save" method="post"> <s:textfield name="number" label="Enter number" /> </s:form> <s:actionerror /> <s:fielderror /> <s:actionmessage /> EDIT 3: Here is a longer version of my struts.xml: <action name="number" method="numberCreate" class="NumberActionBean"> <result>number.jsp</result> </action> <action name="error"> <result>error.jsp</result> </action> <action name="number_save" method="numberSave" class="NumberActionBean"> <interceptor-ref name="defaultStack"></interceptor-ref> <result name="success" type="redirect">index</result> <result name="input" type="redirect">number</result> <result name="error">error</result> <result name="login" type="redirect">login</result> <result name="none">number</result> </action> EDIT 4: My error.jsp is simply a <s:actionerror /> tag with the general taglibs and html tags...

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• Problems with Asynchronous UDP Sockets

  - by ihatenetworkcoding

  Hi, I'm struggling a bit with socket programming (something I'm not at all familiar with) and I can't find anything which helps from google or MSDN (awful). Apologies for the length of this. Basically I have an existing service which recieves and responds to requests over UDP. I can't change this at all. I also have a client within my webapp which dispatches and listens for responses to that service. The existing client I've been given is a singleton which creates a socket and an array of response slots, and then creates a background thread with an infinite looping method that makes "sock.Receive()" calls and pushes the data received into the slot array. All kinds of things about this seem wrong to me and the infinite thread breaks my unit testing so I'm trying to replace this service with one which makes it's it's send/receives asynchronously instead. Point 1: Is this the right approach? I want a non-blocking, scalable, thread-safe service. My first attempt is roughly like this, which sort of worked but the data I got back was always shorter than expected (i.e. the buffer did not have the number of bytes requested) and seemed to throw exceptions when processed. private Socket MyPreConfiguredSocket; public object Query() { //build a request this.MyPreConfiguredSocket.SendTo(MYREQUEST, packet.Length, SocketFlags.Multicast, this._target); IAsyncResult h = this._sock.BeginReceiveFrom(response, 0, BUFFER_SIZE, SocketFlags.None, ref this._target, new AsyncCallback(ARecieve), this._sock); if (!h.AsyncWaitHandle.WaitOne(TIMEOUT)) { throw new Exception("Timed out"); } //process response data (always shortened) } private void ARecieve (IAsyncResult result) { int bytesreceived = (result as Socket).EndReceiveFrom(result, ref this._target); } My second attempt was based on more google trawling and this recursive pattern I frequently saw, but this version always times out! It never gets to ARecieve. public object Query() { //build a request this.MyPreConfiguredSocket.SendTo(MYREQUEST, packet.Length, SocketFlags.Multicast, this._target); State s = new State(this.MyPreConfiguredSocket); this.MyPreConfiguredSocket.BeginReceiveFrom(s.Buffer, 0, BUFFER_SIZE, SocketFlags.None, ref this._target, new AsyncCallback(ARecieve), s); if (!s.Flag.WaitOne(10000)) { throw new Exception("Timed out"); } //always thrown //process response data } private void ARecieve (IAsyncResult result) { //never gets here! State s = (result as State); int bytesreceived = s.Sock.EndReceiveFrom(result, ref this._target); if (bytesreceived > 0) { s.Received += bytesreceived; this._sock.BeginReceiveFrom(s.Buffer, s.Received, BUFFER_SIZE, SocketFlags.None, ref this._target, new AsyncCallback(ARecieve), s); } else { s.Flag.Set(); } } private class State { public State(Socket sock) { this._sock = sock; this._buffer = new byte[BUFFER_SIZE]; this._buffer.Initialize(); } public Socket Sock; public byte[] Buffer; public ManualResetEvent Flag = new ManualResetEvent(false); public int Received = 0; } Point 2: So clearly I'm getting something quite wrong. Point 3: I'm not sure if I'm going about this right. How does the data coming from the remote service even get to the right listening thread? Do I need to create a socket per request? Out of my comfort zone here. Need help.

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• Table Name is null in the sqlite database in android device

  - by Mahe

  I am building a simple app which stores some contacts and retrieves contacts in android phone device. I have created my own database and a table and inserting the values to the table in phone. My phone is not rooted. So I cannot access the files, but I see that values are stored in the table. And tested on a emulator also. Till here it is fine. Display all the contacts in a list by fetching data from table. This is also fine. But the problem is When I am trying to delete the record, it shows the table name is null in the logcat(not an exception), and the data is not deleted. But in emulator the data is getting deleted from table. I am not able to achieve this through phone. This is my code for deleting, public boolean onContextItemSelected(MenuItem item) { super.onContextItemSelected(item); AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) item .getMenuInfo(); int menuItemIndex = item.getItemId(); String[] menuItems = getResources().getStringArray(R.array.menu); String menuItemName = menuItems[menuItemIndex]; String listItemName = Customers[info.position]; if (item.getTitle().toString().equalsIgnoreCase("Delete")) { Toast.makeText( context, "Selected List item is: " + listItemName + "MenuItem is: " + menuItemName, Toast.LENGTH_LONG).show(); DB = context.openOrCreateDatabase("CustomerDetails.db", MODE_PRIVATE, null); try { int pos = info.position; pos = pos + 1; Log.d("", "customers[pos]: " + Customers[info.position]); Cursor c = DB .rawQuery( "Select customer_id,first_name,last_name from CustomerInfo", null); int rowCount = c.getCount(); DB.delete(Table_name, "customer_id" + "=" + String.valueOf(pos), null); DB.close(); Log.d("", "" + String.valueOf(pos)); Toast.makeText(context, "Deleted Customer", Toast.LENGTH_LONG) .show(); // Customers[info.position]=null; getCustomers(); } catch (Exception e) { Toast.makeText(context, "Delete unsuccessfull", Toast.LENGTH_LONG).show(); } } this is my logcat, 07-02 10:12:42.976: D/Cursor(1560): Database path: CustomerDetails.db 07-02 10:12:42.976: D/Cursor(1560): Table name : null 07-02 10:12:42.984: D/Cursor(1560): Database path: CustomerDetails.db 07-02 10:12:42.984: D/Cursor(1560): Table name : null Don't know the reason why data is not being deleted. Data exists in the table. This is the specification I have given for creating the table public static String customer_id="customer_id"; public static String site_id="site_id"; public static String last_name="last_name"; public static String first_name="first_name"; public static String phone_number="phone_number"; public static String address="address"; public static String city="city"; public static String state="state"; public static String zip="zip"; public static String email_address="email_address"; public static String custlat="custlat"; public static String custlng="custlng"; public static String Table_name="CustomerInfo"; final SQLiteDatabase DB = context.openOrCreateDatabase( "CustomerDetails.db", MODE_PRIVATE, null); final String CREATE_TABLE = "create table if not exists " + Table_name + " (" + customer_id + " integer primary key autoincrement, " + first_name + " text not null, " + last_name + " text not null, " + phone_number+ " integer not null, " + address+ " text not null, " + city+ " text not null, " + state+ " text not null, " + zip+ " integer not null, " + email_address+ " text not null, " + custlat+ " double, " + custlng+ " double " +" );"; DB.execSQL(CREATE_TABLE); DB.close(); Please correct my code. I am struggling from two days. Any help is appreciated!!

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• Using AsyncTask, but experiencing unexpected behaviour

  - by capcom

  Please refer to the following code which continuously calls a new AsyncTask. The purpose of the AsyncTask is to make an HTTP request, and update the string result. package room.temperature; import java.io.BufferedReader; import java.io.InputStream; import java.io.InputStreamReader; import java.util.ArrayList; import java.util.concurrent.ExecutionException; 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 android.app.Activity; import android.os.AsyncTask; import android.os.Bundle; import android.util.Log; import android.widget.TextView; public class RoomTemperatureActivity extends Activity { String result = null; StringBuilder sb=null; TextView TemperatureText, DateText; ArrayList<NameValuePair> nameValuePairs; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); TemperatureText = (TextView) findViewById(R.id.temperature); DateText = (TextView) findViewById(R.id.date); nameValuePairs = new ArrayList<NameValuePair>(); for (int i = 0; i < 10; i++) { RefreshValuesTask task = new RefreshValuesTask(); task.execute(""); } } // The definition of our task class private class RefreshValuesTask extends AsyncTask<String, Integer, String> { @Override protected void onPreExecute() { super.onPreExecute(); } @Override protected String doInBackground(String... params) { InputStream is = null; try { HttpClient httpclient = new DefaultHttpClient(); HttpPost httppost = new HttpPost("http://mywebsite.com/roomtemp/tempscript.php"); httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs)); 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()); } try { BufferedReader reader = new BufferedReader(new InputStreamReader(is,"iso-8859-1"),8); sb = new StringBuilder(); sb.append(reader.readLine()); is.close(); result=sb.toString(); } catch(Exception e) { Log.e("log_tag", "Error converting result " + e.toString()); } return result; } @Override protected void onProgressUpdate(Integer... values) { super.onProgressUpdate(values); } @Override protected void onPostExecute(String result) { super.onPostExecute(result); //System.out.println(result); setValues(result); } } public void setValues(String resultValue) { System.out.println(resultValue); String[] values = resultValue.split("&"); TemperatureText.setText(values[0]); DateText.setText(values[1]); } } The problem I am experiencing relates to the AsyncTask in some way or the function setValues(), but I am not sure how. Essentially, I want each call to the AsyncTask to run, eventually in an infinite while loop, and update the TextView fields as I have attempted in setValues. I have tried since yesterday after asking a question which led to this code, for reference. Oh yes, I did try using the AsyncTask get() method, but that didn't work either as I found out that it is actually a synchronous call, and renders the whole point of AsyncTask useless.

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• why is my intent not useful?

  - by user1634887

  This is my first to ask here. I write the code for a Broadcast A start another Broadcast B. But the Broadcast B didn't get the intent's value. Broadcast A:get the sms contain message and start B public void onReceive(Context context, Intent intent) { Object[] pdus=(Object[])intent.getExtras().get("pdus"); for(Object pdu:pdus) { byte[] date=(byte[])pdu; SmsMessage message=SmsMessage.createFromPdu(date); String sender=message.getOriginatingAddress(); String body=message.getMessageBody(); if(sender.equals(AppUtil.herPhone)&&body.regionMatches(0, AppUtil.herSmsText, 0, 18)) { Toast.makeText(context, body, Toast.LENGTH_LONG).show(); String [] bodyArray=body.split(" "); String longitude=bodyArray[1]; String latitude=bodyArray[2]; **Intent uiIntent=new Intent(); Bundle bundle=new Bundle(); bundle.putString("longitude", longitude); bundle.putString("latitude", latitude); uiIntent.putExtras(bundle); uiIntent.setAction("android.janmac.location"); context.sendBroadcast(uiIntent);** abortBroadcast(); } } } Boardcast B: it nest in an Activity. register: button.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { AppUtil.SendMessage(MainActivity.this); uiReceiver=new UIReceiver(); IntentFilter filter=new IntentFilter(); filter.addAction("android.janmac.location"); registerReceiver(uiReceiver, filter); } }); extend: private class UIReceiver extends BroadcastReceiver { @Override public void onReceive(Context context, Intent intent) { Log.v("location","uireceiver????!"); **Bundle bundle=new Bundle(); bundle=intent.getExtras(); herLongitude=Double.valueOf(bundle.getString("longitude")); herLatitude=Double.valueOf(bundle.getString("latitude"));** } } but the bundle couldn't get any values. here is log: 08-30 11:17:40.494: D/AndroidRuntime(2359): Shutting down VM 08-30 11:17:40.514: W/dalvikvm(2359): threadid=1: thread exiting with uncaught exception (group=0x40018560) 08-30 11:17:40.544: E/AndroidRuntime(2359): FATAL EXCEPTION: main 08-30 11:17:40.544: E/AndroidRuntime(2359): java.lang.RuntimeException: Error receiving broadcast Intent { act=android.janmac.location (has extras) } in com.example.locationclient.MainActivity$UIReceiver@40513690 08-30 11:17:40.544: E/AndroidRuntime(2359): at android.app.LoadedApk$ReceiverDispatcher$Args.run(LoadedApk.java:722) 08-30 11:17:40.544: E/AndroidRuntime(2359): at android.os.Handler.handleCallback(Handler.java:587) 08-30 11:17:40.544: E/AndroidRuntime(2359): at android.os.Handler.dispatchMessage(Handler.java:92) 08-30 11:17:40.544: E/AndroidRuntime(2359): at android.os.Looper.loop(Looper.java:130) 08-30 11:17:40.544: E/AndroidRuntime(2359): at android.app.ActivityThread.main(ActivityThread.java:3835) 08-30 11:17:40.544: E/AndroidRuntime(2359): at java.lang.reflect.Method.invokeNative(Native Method) 08-30 11:17:40.544: E/AndroidRuntime(2359): at java.lang.reflect.Method.invoke(Method.java:507) 08-30 11:17:40.544: E/AndroidRuntime(2359): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:864) 08-30 11:17:40.544: E/AndroidRuntime(2359): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:622) 08-30 11:17:40.544: E/AndroidRuntime(2359): at dalvik.system.NativeStart.main(Native Method) 08-30 11:17:40.544: E/AndroidRuntime(2359): Caused by: java.lang.NumberFormatException 08-30 11:17:40.544: E/AndroidRuntime(2359): at org.apache.harmony.luni.util.FloatingPointParser.parseDblImpl(Native Method) 08-30 11:17:40.544: E/AndroidRuntime(2359): at org.apache.harmony.luni.util.FloatingPointParser.parseDouble(FloatingPointParser.java:283) 08-30 11:17:40.544: E/AndroidRuntime(2359): at java.lang.Double.parseDouble(Double.java:318) 08-30 11:17:40.544: E/AndroidRuntime(2359): at java.lang.Double.valueOf(Double.java:356) 08-30 11:17:40.544: E/AndroidRuntime(2359): at com.example.locationclient.MainActivity$UIReceiver.onReceive(MainActivity.java:231) 08-30 11:17:40.544: E/AndroidRuntime(2359): at android.app.LoadedApk$ReceiverDispatcher$Args.run(LoadedApk.java:709) 08-30 11:17:40.544: E/AndroidRuntime(2359): ... 9 more enter code here

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• Setup database for Unit tests with Spring, Hibernate and Spring Transaction Support

  - by Michael Bulla

  I want to test integration of dao-layer with my service-layer in a unit-test. So I need to setup some data in my database (hsql). For this setup I need an own transaction at the begining of my testcase to ensure that all my setup is really commited to database before starting my testcase. So here's what I want to achieve: // NotTranactional public void doTest { // transaction begins setup database // commit transaction service.doStuff() // doStuff is annotated @Transactional(propagation=Propagation.REQUIRED) } Here is my not working code: @RunWith(SpringJUnit4ClassRunner.class) @ContextConfiguration(locations={"/asynchUnit.xml"}) @DirtiesContext(classMode=ClassMode.AFTER_EACH_TEST_METHOD) public class ReceiptServiceTest implements ApplicationContextAware { @Autowired(required=true) private UserHome userHome; private ApplicationContext context; @Before @Transactional(propagation=Propagation.REQUIRED) public void init() throws Exception { User user = InitialCreator.createUser(); userHome.persist(user); } @Test public void testDoSomething() { ... } } Leading to this exception: org.hibernate.HibernateException: No Hibernate Session bound to thread, and configuration does not allow creation of non-transactional one here at org.springframework.orm.hibernate3.SpringSessionContext.currentSession(SpringSessionContext.java:63) at org.hibernate.impl.SessionFactoryImpl.getCurrentSession(SessionFactoryImpl.java:687) at de.diandan.asynch.modell.GenericHome.getSession(GenericHome.java:40) at de.diandan.asynch.modell.GenericHome.persist(GenericHome.java:53) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:318) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:196) at $Proxy28.persist(Unknown Source) at de.diandan.asynch.service.ReceiptServiceTest.init(ReceiptServiceTest.java:63) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41) at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:27) at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:74) at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:83) at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:231) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184) at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61) at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:71) at org.junit.runners.ParentRunner.run(ParentRunner.java:236) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:174) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:49) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197) I dont know whats the right way to get the transaction around setup database. What I tried: @Before @Transactional(propagation=Propagation.REQUIRED) public void setup() { setup database } - Spring seems not to start transaction in @Before-annotated methods. Beyond that, thats not what I really want, cause there are a lot merhods in my testclass which needs a slightly differnt setup, so I need several of that init-methods. @Transactional(propagation=Propagation.REQUIRED) public void setup() { setup database } public void doTest { init(); service.doStuff() // doStuff is annotated @Transactional(propagation=Propagation.REQUIRED) } -- init seems not to get started in transaction What I dont want to do: public void doTest { // doing my own transaction-handling setup database // doing my own transaction-handling service.doStuff() // doStuff is annotated @Transactional(propagation=Propagation.REQUIRED) } -- start mixing springs transaction-handling and my own seems to get pain in the ass. @Transactional(propagation=Propagation.REQUIRED) public void doTest { setup database service.doStuff() } -- I want to test as real as possible situation, so my service should start with a clean session and no transaction opened So whats the right way to setup database for my testcase?

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