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  • How to run SQL that contains bind variables in the ODT Query Window?

    - by dnorthut
    How do you run SQL that contains one or more bind variables in the Oracle Developer Tools for Visual Studio Query Window? For example, the following works fine in SQL*Plus: variable x NUMBER; BEGIN :x := 0; END; / SELECT 1 FROM DUAL WHERE :x <> 1; When executed in the ODT Query Window, the following exception is raised in the Query output pane: ERROR ORA-01008: not all variables bound

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  • How to encrypt and save a binary stream after serialization and read it back?

    - by Anindya Chatterjee
    I am having some problems in using CryptoStream when I want to encrypt a binary stream after binary serialization and save it to a file. I am getting the following exception System.ArgumentException : Stream was not readable. Can anybody please show me how to encrypt a binary stream and save it to a file and deserialize it back correctly? The code is as follows: class Program { public static void Main(string[] args) { var b = new B {Name = "BB"}; WriteFile<B>(@"C:\test.bin", b, true); var bb = ReadFile<B>(@"C:\test.bin", true); Console.WriteLine(b.Name == bb.Name); Console.ReadLine(); } public static T ReadFile<T>(string file, bool decrypt) { T bObj = default(T); var _binaryFormatter = new BinaryFormatter(); Stream buffer = null; using (var stream = new FileStream(file, FileMode.OpenOrCreate)) { if(decrypt) { const string strEncrypt = "*#4$%^.++q~!cfr0(_!#$@$!&#&#*&@(7cy9rn8r265&$@&*E^184t44tq2cr9o3r6329"; byte[] dv = {0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF}; CryptoStream cs; DESCryptoServiceProvider des = null; var byKey = Encoding.UTF8.GetBytes(strEncrypt.Substring(0, 8)); using (des = new DESCryptoServiceProvider()) { cs = new CryptoStream(stream, des.CreateEncryptor(byKey, dv), CryptoStreamMode.Read); } buffer = cs; } else buffer = stream; try { bObj = (T) _binaryFormatter.Deserialize(buffer); } catch(SerializationException ex) { Console.WriteLine(ex.Message); } } return bObj; } public static void WriteFile<T>(string file, T bObj, bool encrypt) { var _binaryFormatter = new BinaryFormatter(); Stream buffer; using (var stream = new FileStream(file, FileMode.Create)) { try { if(encrypt) { const string strEncrypt = "*#4$%^.++q~!cfr0(_!#$@$!&#&#*&@(7cy9rn8r265&$@&*E^184t44tq2cr9o3r6329"; byte[] dv = {0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF}; CryptoStream cs; DESCryptoServiceProvider des = null; var byKey = Encoding.UTF8.GetBytes(strEncrypt.Substring(0, 8)); using (des = new DESCryptoServiceProvider()) { cs = new CryptoStream(stream, des.CreateEncryptor(byKey, dv), CryptoStreamMode.Write); buffer = cs; } } else buffer = stream; _binaryFormatter.Serialize(buffer, bObj); buffer.Flush(); } catch(SerializationException ex) { Console.WriteLine(ex.Message); } } } } [Serializable] public class B { public string Name {get; set;} } It throws the serialization exception as follows The input stream is not a valid binary format. The starting contents (in bytes) are: 3F-17-2E-20-80-56-A3-2A-46-63-22-C4-49-56-22-B4-DA ...

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  • Accessing a web service and a HTTP interface using certificate authentication

    - by ADC
    It is the first time I have to use certificate authentication. A commercial partner expose two services, a XML Web Service and a HTTP service. I have to access both of them with .NET clients. What I have tried 0. Setting up the environment I have installed the SSLCACertificates (on root and two intermediate) and the client certificate in my local machine (win 7 professional) using certmgr.exe. 1. For the web service I have the client certificate (der). The service will be consumed via a .NET proxy. Here's the code: OrderWSService proxy = new OrderWSService(); string CertFile = "ClientCert_DER.cer"; proxy.ClientCertificates.Add(new System.Security.Cryptography.X509Certificates.X509Certificate(CertFile)); orderTrackingTO ot = new orderTrackingTO() { order_id = "80", tracking_id = "82", status = stateOrderType.IN_PREPARATION }; resultResponseTO res = proxy.insertOrderTracking(ot); Exception reported at last statement: The request failed with an empty response. 2. For the HTTP interface it is a HTTPS interface I have to call through POST method. The HTTPS request will be send from a .NET client using HTTPWebRequest. Here's the code: string PostData = "MyPostData"; //setting the request HttpWebRequest req; req = (HttpWebRequest)HttpWebRequest.Create(url); req.UserAgent = "MyUserAgent"; req.Method = "POST"; req.ContentType = "application/x-www-form-urlencoded"; req.ClientCertificates.Add(new System.Security.Cryptography.X509Certificates.X509Certificate(CertFile, "MyPassword")); //setting the request content byte[] byteArray = Encoding.UTF8.GetBytes(PostData); Stream dataStream = req.GetRequestStream(); dataStream.Write(byteArray, 0, byteArray.Length); dataStream.Close(); //obtaining the response WebResponse res = req.GetResponse(); r = new StreamReader(res.GetResponseStream()); Exception reported at last statement: The request was aborted: Could not create SSL/TLS secure channel. 3. Last try: using the browser In Chrome, after installing the certificates, if I try to access both urls I get a 107 error: Error 107 (net::ERR_SSL_PROTOCOL_ERROR) I am stuck.

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  • richfaces 3.3.3 problem with ie6

    - by Omar K
    Hi everyone, I am working using richfaces 3.3.3 , tomcat 6. when i try to access my application using IE6 and the windows language is set to arabic, i get the following exception: IllegalArgumentException: Parameter "size" for convert from HTML to java can not be decoded: [1px], reason: Unparseable number: "1px". when i change the windows language back to english, restart the server and try to log in again everything works fine.. Can anybody please help me with this issue

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  • Spring MVC, forward

    - by aauser
    Is there any difference between public class Controller1 extends AbstractController { @Override protected ModelAndView handleRequestInternal(HttpServletRequest request, HttpServletResponse response) throws Exception { return new AnotherController().handleRequest(request, response); } } and @Controller public class Controller1 { @RequestMapping ... public String handleRequest() { return "forward:/path_to_my_another_controller"; } }

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  • Loading jar file using JCL(JarClassLoader ) : classpath in manifest is ignored ..

    - by Xinus
    I am trying to load jar file using JCL using following code FileInputStream fis = new FileInputStream(new File( "C:\\Users\\sunils\\glassfish-tests\\working\\test.jar") ); JarClassLoader jc = new JarClassLoader( ); jc.add(fis); Class main = jc.loadClass( "highmark.test.Main" ); String[] str={}; main.getMethod("test").invoke(null);//.getDeclaredMethod("main",String[].class).invoke(null,str); fis.close(); But when I try to run this program I get Exception as Exception in thread "main" java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at Main.main(Main.java:21) Caused by: java.lang.RuntimeException: Embedded startup not found, classpath is probably incomplete at org.glassfish.api.embedded.Server.<init>(Server.java:292) at org.glassfish.api.embedded.Server.<init>(Server.java:75) at org.glassfish.api.embedded.Server$Builder.build(Server.java:185) at org.glassfish.api.embedded.Server$Builder.build(Server.java:167) at highmark.test.Main.test(Main.java:33) ... 5 more According to this it is not able to locate class, But when I run the jar file explicitly it runs fine. It seems like JCL is ignoring other classes present in the jar file, MANIFEST.MF file in jar file shows: Manifest-Version: 1.0 Class-Path: . Main-Class: highmark.test.Main It seems to be ignoring Class-Path: . , This jar file runs fine when I run it using Java explicitly, This is just a test, in reality this jar file is coming as a InputStream and it cannot be stored in filesystem, How can I overcome this problem , Is there any workaround ? Thanks for any help . UNDATE: Here is a jar Main class : package highmark.test; import org.glassfish.api.embedded.*; import java.io.*; import org.glassfish.api.deployment.*; import com.sun.enterprise.universal.io.FileUtils; public class Main { public static void main(String[] args) throws IOException, LifecycleException, ClassNotFoundException { test(); } public static void test() throws IOException, LifecycleException, ClassNotFoundException{ Server.Builder builder = new Server.Builder("test"); Server server = builder.build(); server.createPort(8080); ContainerBuilder containerBuilder = server.createConfig(ContainerBuilder.Type.web); server.addContainer(containerBuilder); server.start(); File war=new File("C:\\Users\\sunils\\maventests\\simple-webapp\\target\\simple-webapp.war");//(File) inputStream.readObject(); EmbeddedDeployer deployer = server.getDeployer(); DeployCommandParameters params = new DeployCommandParameters(); params.contextroot = "simple"; deployer.deploy(war, params); } }

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  • Does anyone know what happens if you do not implement iequtalable when using generic collections?

    - by ChloeRadshaw
    I asked a question here : http://stackoverflow.com/questions/2476793/when-to-use-iequatable-and-why about using Iequatable. From the msdn: The IEquatable(T) interface is used by generic collection objects such as Dictionary(TKey, TValue), List(T), and LinkedList(T) when testing for equality in such methods as Contains, IndexOf, LastIndexOf, and Remove. If you dont implement that interface what exactly happens?? Exception / default object equals / ref equals?

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  • Best way to detect duplicates when using Spring Hibernate Template

    - by Dean Povey
    We have an application which needs to detect duplicates in certain fields on create. We are using Hibernate as our persistence layer and using Spring's HibernateTemplate. My question is whether it is better to do so an upfront lookup for the item before creating, or to attempt to catch the DataIntegrityViolation exception and then check if this is caused by a duplicate entry.

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  • Why does Int32.MaxValue * Int32.MaxValue == 1 ???

    - by Greg Balajewicz
    OK, I know, Int32.MaxValue * Int32.MaxValue will yield a number larger than Int32 BUT, shouldn't this statement raise some kind of an exception? I ran across this when doing something like IF (X * Y Z) where all are Int32. in X and Y are sufficiently large enough, you get a bogus value from X*Y Why is this so and how to get around this? besides casting everything to int64

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  • Outlook Crashes with Event ID 1000

    - by Deepak N
    We deployed a VSTO addin for outlook 2003. After installing the addin one of the user's outlook crashes when a contact is opened, i.e, when ItemProperties of the contact are read.Some theses properties are read using MAPI.There is no exception being logged even though we have try/catch and logging in all methods. The event log has following message The description for Event ID 1000 from source Microsoft Office 11 cannot be found Source : Microsoft Office 11 The following information was included with the event: outlook.exe 11.0.8312.0 4a403990 msvcr80.dll 8.0.50727.3053 4889d619 0 0001500a

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  • PHP Strange error "0:". Possible Object syntax problem?

    - by Michael Stone
    I'm trying to transfer a site from one hosting company to another. I was using 000webhost until the client had hosting and a domain. Now that the client has their domain and hosting, using FatCow.com, I can not for the life of me, debug my PHP code. I'm not getting any errors. I have a successful DB connection. If you procedurally display data, it works, but when I try to use my original objects, something is breaking and just returns "0:". I have all errors on. On old server where the site worked: PHP Version 5.2.11 MySQL Version: 5.0.81 On new server where I get the "0:": PHP Version 5.2.12 MySQL Version 5.0.32 I've setup a test page to test just the output of the variables with the DB connection. Below is my code: <?php error_reporting(E_ALL); ini_set('display_errors', '1'); try { $link = mysql_connect('connectionstring', 'username', 'password'); if (!$link) { die('Could not connect: ' . mysql_error()); } else{ $db = mysql_select_db('a8210422_lit'); } if($db){ include_once('admin/classes/clsPOW.php'); include_once('admin/classes/clsProviders.php'); $pow = new POW(); $prov = new Providers(); $new = $pow->getNew(); $newAr = $new->val(); $get = $prov->getAll($newAr['providerId']); $getAr = $get->val(); $img = $getAr['image']; $name = $getAr['provider']; $desc = $getAr['description']; $zip = $getAr['zip']; $web = $getAr['link']; if($zip==0){ $zip = "Unavailable"; } print $img; print $name; print $desc; print $zip; print $web; } else{ print 'fail!'; } } //catch exception catch(Exception $e) { echo 'Message: ' .$e->getMessage(); } ?>

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  • How can i do the same thing with Gallery in Android

    - by Maxood
    I am navigating images with the clicks of next and previous buttons.Here is my code: package com.myapps.imagegallery; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.ImageView; import android.widget.TextView; import android.widget.Toast; public class ImageGallery extends Activity { /** Called when the activity is first created. */ int imgs[] = {R.drawable.bluehills,R.drawable.lilies,R.drawable.sunset,R.drawable.winter}; String desc[] = {"Blue Hills", "Lillies", "Sunset", "Winter" }; int counter=0; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); final ImageView imgView = (ImageView)findViewById(R.id.ImageView01); imgView.setImageResource(imgs[counter]); final TextView tvDesc = (TextView)findViewById(R.id.tvDesc); Button btnNext = (Button)findViewById(R.id.btnNext); btnNext.setOnClickListener(new View.OnClickListener(){ @Override public void onClick(View arg0) { try{ // TODO Auto-generated method stub if (counter < desc.length -1) counter++; imgView.setImageResource(imgs[counter]); tvDesc.setText(desc[counter]); }catch(Exception e) { Toast.makeText(ImageGallery.this, e.toString(), Toast.LENGTH_SHORT).show(); } } }); Button btnPrev = (Button)findViewById(R.id.btnPre); btnPrev.setOnClickListener(new View.OnClickListener(){ @Override public void onClick(View arg0) { // TODO Auto-generated method stub try{ // TODO Auto-generated method stub if (counter > 0) counter--; imgView.setImageResource(imgs[counter]); tvDesc.setText(desc[counter]); }catch(Exception e) { Toast.makeText(ImageGallery.this, e.toString(), Toast.LENGTH_SHORT).show(); } }}); } } <?xml version="1.0" encoding="utf-8"?> <AbsoluteLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" > <ImageView android:id="@+id/ImageView01" android:layout_x="70dip" android:layout_width="200px" android:layout_height="200px" android:layout_y="90dip" > </ImageView> <TextView android:id="@+id/tvDesc" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/hello" android:layout_x="90px" android:layout_y="300px" /> <Button android:layout_x="47dip" android:layout_height="wrap_content" android:text="Previous" android:layout_width="100px" android:id="@+id/btnPre" android:layout_y="341dip"> </Button> <Button android:layout_x="190dip" android:layout_height="wrap_content" android:text="Next" android:layout_width="100px" android:id="@+id/btnNext" android:layout_y="341dip"> </Button> </AbsoluteLayout>

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  • Mysterious constraints problem with SQL Server 2000

    - by Ramon
    Hi all I'm getting the following error from a VB NET web application written in VS 2003, on framework 1.1. The web app is running on Windows Server 2000, IIS 5, and is reading from a SQL server 2000 database running on the same machine. System.Data.ConstraintException: Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints. at System.Data.DataSet.FailedEnableConstraints() at System.Data.DataSet.EnableConstraints() at System.Data.DataSet.set_EnforceConstraints(Boolean value) at System.Data.DataTable.EndLoadData() at System.Data.Common.DbDataAdapter.FillFromReader(Object data, String srcTable, IDataReader dataReader, Int32 startRecord, Int32 maxRecords, DataColumn parentChapterColumn, Object parentChapterValue) at System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, String srcTable, IDataReader dataReader, Int32 startRecord, Int32 maxRecords) at System.Data.Common.DbDataAdapter.FillFromCommand(Object data, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) at System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) at System.Data.Common.DbDataAdapter.Fill(DataSet dataSet) The problem appears when the web app is under a high load. The system runs fine when volume is low, but when the number of requests becomes high, the system starts rejecting incoming requests with the above exception message. Once the problem appears, very few requests actually make it through and get processed normally, about 2 in every 30. The vast majority of requests fail, until a SQL Server restart or IIS reset is performed. The system then start processing requests normally, and after some time it starts throwing the same error. The error occurs when a data adapter runs the Fill() method against a SELECT statement, to populate a strongly-typed dataset. It appears that the dataset does not like the data it is given and throws this exception. This error occurs on various SELECT statements, acting on different tables. I have regenerated the dataset and checked the relevant constraints, as well as the table from which the data is read. Both the dataset definition and the data in the table are fine. Admittedly, the hardware running both the web app and SQL Server 2000 is seriously outdated, considering the numbers of incoming requests it currently receives. The amount of RAM consumed by SQL Server is dynamically allocated, and at peak times SQL Server can consume up to 2.8 GB out of a total of 3.5 GB on the server. At first I suspected some sort of index or database corruption, but after running DBCC CHECKDB, no errors were found in the database. So now I'm wondering whether this error is a result of the hardware limitations of the system. Is it possible for SQL Server to somehow mess up the data it's supposed to pass to the dataset, resulting in constraint violation due to, say, data type/length mismatch? I tried accessing the RowError messages of the data rows in the retrieved dataset tables but I kept getting empty strings. I know that HasErrors = true for the datatables in question. I have not set the EnableConstraints = false, and I don't want to do that. Thanks in advance. Ray

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  • EAAccessory problem

    - by dragon
    I have developed code using EAAccessory , and its work fine... But when i disconnect EAAccessory, my application got exception like an error....I want to show an alert , while disconnecting EAAccessory.... I am using this line of code in my app (void)accessoryDidDisconnect:(EAAccessory *)accessory; But this event is not fired ..When i disconnect my accessory.... Can anyone help me ? Thanks in advance..........

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  • How to start 'View Contact' Activity on android?

    - by Phuc Phan Nguyen Truong
    Hi all, I want to create a tab which contains a tab for viewing contact detail. Here is what i did: intent = new Intent(Intent.ACTION_VIEW, Uri.withAppendedPath(ContactsContract.Contacts.CONTENT_URI, ""+contactId)); nativeInfo = tabHost.newTabSpec("native info").setIndicator("N Info").setContent(intent); It throw security exception. I appreciate your help. Thanks.

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  • Type-inferring a constant in C#

    - by Andreas Grech
    In C#, the following type-inference works: var s = "abcd"; But why can't the type be inferred when the variable is a constant? The following throws a compile-time exception: const var s = "abcd"; // <= Compile time error: // Implicitly-typed local variables cannot be constant

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  • How to change fileupload name

    - by Domnic
    im using following code to upload protected void UploadButton_Click(object sender, EventArgs e) { if(FileUploadControl.HasFile) { try { string filename = Path.GetFileName(FileUploadControl.FileName); FileUploadControl.SaveAs(Server.MapPath("~/") + filename); StatusLabel.Text = "Upload status: File uploaded!"; } catch(Exception ex) { StatusLabel.Text = "Upload status: The file could not be uploaded. The following error occured: " + ex.Message; } } } i want to cahnge upload file name...i have to assign file name for every uploaded file how?

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  • Webservice client in j2me from secure site

    - by pujakhemka
    Hi, I have to create a java me web service client for wsdl of a secure site (https). When I try to do it using the conventional method of retrieving wsdl in netbeans, I get "IO Exception (Check Proxy Settings)" I have no idea what to do. Can anybody point me in the right direction?? Thanks in advance.

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  • How can I make properties files mandatory in Spring?

    - by Paulo Guedes
    I have an ApplicationContext.xml file with the following node: <context:property-placeholder location="classpath:hibernate.properties, classpath:pathConfiguration.properties" /> It specifies that both properties files will be used by my application. But if one of these files does not exist, no error ir thrown. How can I throw an exception for any of these files? They should me mandatory.

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  • How to "uninstantiate" an object?

    - by Mark
    I wrote a function in Python: def instantiate(c): if inspect.isclass(c): return c() elif isinstance(c, object): return c else: raise Exception, '%s is not an object or class.' % c Now I want to do the opposite: get the class from an already instantiated object so that I can re-instantiate it with different parameters. How can I do that?

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  • how to invoke a webservice from one container in another container in glassfish

    - by vinny
    I have webservices deployed on two containers in two separate servers A and B. A webMethod in 'Server A' needs to invoke a webmethod in 'Server B'. I have created a client stub for Sever B. Im trying to make 'Server A' use this client stub and talk to Server B. I get an exception while trying to instantiate the port object specifically at : service.getABCBeanPort(); (using JAX-WS library) Is my approach correct? Is there any better way of invoking a webservice on a remote server?

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  • Why an object declared in method is subject to garbage collection before the method returns?

    - by SiLent SoNG
    Consider an object declared in a method: public void foo() { final Object obj = new Object(); // A long run job that consumes tons of memory and // triggers garbage collection } Will obj be subject to garbage collection before foo() returns? UPDATE: Previously I thought obj is not subject to garbage collection until foo() returns. However, today I find myself wrong. I have spend several hours in fixing a bug and finally found the problem is caused by obj garbage collected! Can anyone explain why this happens? And if I want obj to be pinned how to achieve it? Here is the code that has problem. public class Program { public static void main(String[] args) throws Exception { String connectionString = "jdbc:mysql://<whatever>"; // I find wrap is gc-ed somewhere SqlConnection wrap = new SqlConnection(connectionString); Connection con = wrap.currentConnection(); Statement stmt = con.createStatement(ResultSet.TYPE_FORWARD_ONLY, ResultSet.CONCUR_READ_ONLY); stmt.setFetchSize(Integer.MIN_VALUE); ResultSet rs = stmt.executeQuery("select instance_id, doc_id from crawler_archive.documents"); while (rs.next()) { int instanceID = rs.getInt(1); int docID = rs.getInt(2); if (docID % 1000 == 0) { System.out.println(docID); } } rs.close(); //wrap.close(); } } After running the Java program, it will print the following message before it crashes: 161000 161000 ******************************** Finalizer CALLED!! ******************************** ******************************** Close CALLED!! ******************************** 162000 Exception in thread "main" com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: And here is the code of class SqlConnection: class SqlConnection { private final String connectionString; private Connection connection; public SqlConnection(String connectionString) { this.connectionString = connectionString; } public synchronized Connection currentConnection() throws SQLException { if (this.connection == null || this.connection.isClosed()) { this.closeConnection(); this.connection = DriverManager.getConnection(connectionString); } return this.connection; } protected void finalize() throws Throwable { try { System.out.println("********************************"); System.out.println("Finalizer CALLED!!"); System.out.println("********************************"); this.close(); } finally { super.finalize(); } } public void close() { System.out.println("********************************"); System.out.println("Close CALLED!!"); System.out.println("********************************"); this.closeConnection(); } protected void closeConnection() { if (this.connection != null) { try { connection.close(); } catch (Throwable e) { } finally { this.connection = null; } } } }

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