Problem with getInputStream
Hi,
I get the following exception in the code -
java.io.IOException: Server returned HTTP response code: 500 for URL:
The exception is occurring at URLConnection.getInputStream().
Could somebody please let me know how to debug this type of exception? What could be the probable cause?
Any help would be highly appreciated.
Thanks in advance.
It would have taken you about 5 seconds to google for http status codes:
http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
500 means internal server error.
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Problem with threads running javaw
Hi,
Having a problem with multi thread programming using client server sockets. The program works find when starting the the application in a console using java muti.java , but when using javaw multi.java the program doesnt die and have to kill it in the task manager. The program doesnt display any of my gui error messages either when the server disconnect the client. all works find in a console. any advice on this as I havent been able to understand why this is happening? any comment would be appreciated.
troy.troy,
Try and post a minimum code sample of your app which
does not work.
When using javaw, make sure you redirect the standard
error and standard output streams to file.
Graeme.Hi Graeme,
I dont understand what you mean by redirection to file? some of my code below.
The code works fine under a console, code is supposed to exit when the client (the other server )disconnects. the problem is that but the clientworker side of the code still works. which under console it doesnt.
public class Server{
ServerSocket aServerSocket;
Socket dianosticsSocket;
Socket nPortExpress;
ClientListener aClientListener;
LinkedList queue = new LinkedList();
int port = 0;
int clientPort = 0;
String clientName = null;
boolean serverAlive = true;
* Server constructor generates a server
* Socket and then starts a client threads.
* @param aPort socket port of local machine.
public Server(int aPort, String aClientName, int aClientPort){
port = aPort;
clientName = aClientName;
clientPort = aClientPort;
try{
// create a new thread
aServerSocket = new ServerSocket(port) ;
// connect to the nPortExpress
aClientListener = new ClientListener(InetAddress.getByName(clientName), clientPort, queue,this);
// aClientListener.setDaemon(true);
aClientListener.start();
// start a dianostic port
DiagnosticsServer aDiagnosticsServer = new DiagnosticsServer(port,queue,aClientListener);
// System.out.println("Server is running on port " + port + "...");
// System.out.println("Connect to nPort");
catch(Exception e)
// System.out.println("ERROR: Server port " + port + " not available");
JOptionPane.showMessageDialog(null, (e.toString()),"ERROR: Server port " + port + " not available", JOptionPane.ERROR_MESSAGE);
serverAlive = false;
System.exit(1);
while(serverAlive&&aClientListener.hostSocket.isConnected()){
try{
// connect the client
Socket aClient = aServerSocket.accept();
//System.out.println("open client connection");
//System.out.println("client local: "+ aClient.getLocalAddress().toString());
// System.out.println("client localport: "+ aClient.getLocalPort());
// System.out.println("client : "+ aClient.getInetAddress().toString());
// System.out.println("client port: "+ aClient.getLocalPort());
// make a new client thread
ClientWorker clientThread = new ClientWorker(aClient, queue, aClientListener, false);
// start thread
clientThread.start();
catch(Exception e)
//System.out.println("ERROR: Client connection failure");
JOptionPane.showMessageDialog(null, (e.toString()),"ERROR: Client connection failure", JOptionPane.ERROR_MESSAGE);
}// end while
} // end constructor Server
void serverExit(){
JOptionPane.showMessageDialog(null, "Server ","ERROR: nPort Failure", JOptionPane.ERROR_MESSAGE);
System.exit(1);
}// end class Server
*** connect to another server
public class ClientListener extends Thread{
InetAddress hostName;
int hostPort;
Socket hostSocket;
BufferedReader in;
PrintWriter out;
boolean loggedIn;
LinkedList queue; // reference to Server queue
Server serverRef; // reference to main server
* ClientListener connects to the host server.
* @param aHostName is the name of the host eg server name or IP address.
* @param aHostPort is a port number of the host.
* @param aLoginName is the users login name.
public ClientListener(InetAddress aHostName, int aHostPort,LinkedList aQueue,Server aServer) // reference to Server queue)
hostName = aHostName;
hostPort = aHostPort;
queue = aQueue;
serverRef = aServer;
// connect to the server
try{
hostSocket = new Socket(hostName, hostPort);
catch(IOException e){
//System.out.println("ERROR: Connection Host Failed");
JOptionPane.showMessageDialog(null, (e.toString()),"ERROR: Connection to nPort Failed", JOptionPane.ERROR_MESSAGE);
System.exit(0);
} // end constructor ClientListener
** multi client connection server
ClientWorker(Socket aSocket,LinkedList aQueue, ClientListener aClientListener, boolean diagnostics){
queue = aQueue;
addToQueue(this);
client = aSocket;
clientRef = aClientListener;
aDiagnostic = diagnostics;
} // end constructor ClientWorker
* run method is the main loop of the server program
* in change of handle new client connection as well
* as handle all messages and errors.
public void run(){
boolean alive = true;
String aSubString = "";
in = null;
out = null;
loginName = "";
loggedIn = false;
while (alive && client.isConnected()&& clientRef.hostSocket.isConnected()){
try{
in = new BufferedReader(new InputStreamReader(client.getInputStream()));
out = new PrintWriter(new OutputStreamWriter(client.getOutputStream()));
if(aDiagnostic){
out.println("WELCOME to diagnostics");
broadCastDia("Connect : diagnostics "+client.getInetAddress().toString());
out.flush();
else {
out.println("WELCOME to Troy's Server");
broadCastDia("Connect : client "+client.getInetAddress().toString());
out.flush();
String line;
while(((line = in.readLine())!= null)){
StringTokenizer aStringToken = new StringTokenizer(line, " ");
if(!aDiagnostic){
broadCastDia(line);
clientRef.sendMessage(line); // send mesage out to netExpress
out.println(line);
out.flush();
else{
if(line.equals("GETIPS"))
getIPs();
else{
clientRef.sendMessage(line); // send mesage out to netExpress
out.println(line);
out.flush();
} // end while
catch(Exception e){
// System.out.println("ERROR:Client Connection reset");
JOptionPane.showMessageDialog(null, (e.toString()),"ERROR:Client Connection reset", JOptionPane.ERROR_MESSAGE);
try{
if(aDiagnostic){
broadCastDia("Disconnect : diagnostics "+client.getInetAddress().toString());
out.flush();
else {
broadCastDia("Disconnect : client "+client.getInetAddress().toString());
out.flush();
// close the buffers and connection;
in.close();
out.close();
client.close();
// System.out.println("out");
// remove from list
removeThreadQueue(this);
alive = false;
catch(Exception e){
// System.out.println("ERROR: Client Connection reset failure");
JOptionPane.showMessageDialog(null, (e.toString()),"ERROR: Client Connection reset failure", JOptionPane.ERROR_MESSAGE);
}// end while
} // end method run
* method run - Generates io stream for communicating with the server and
* starts the client gui. Run also parses the input commands from the server.
public void run(){
boolean alive = true;
try{
// begin to life the gui
// aGuiClient = new ClientGui(hostName.getHostName(), hostPort, loginName, this);
// aGuiClient.show();
in = new BufferedReader(new InputStreamReader(hostSocket.getInputStream()));
out = new PrintWriter(new OutputStreamWriter(hostSocket.getOutputStream()));
while (alive && hostSocket.isConnected()){
String line;
while(((line = in.readLine())!= null)){
System.out.println(line);
broadCast(line);
} // end while
} // end while
catch(Exception e){
// System.out.println("ERRORa Connection to host reset");
JOptionPane.showMessageDialog(null, (e.toString()),"ERROR: Connection to nPort reset", JOptionPane.ERROR_MESSAGE);
try{
hostSocket.close();
}catch(Exception a){
JOptionPane.showMessageDialog(null, (a.toString()),"ERROR: Exception", JOptionPane.ERROR_MESSAGE);
alive = false;
System.exit(1);
} // end method run -
Java Webstart application problem with TLS certificate revocation checks (Java 1.7.0_76)
We have a problem with our Java Web Start Application regarding the TLS certificate revocation check:
The application is running on a server within a wide area network which is separated from the internet.
The application users have access to the WAN, and also access to the internet over some corporate proxy/firewall.
The user has to enter, for example "https://my-site.de/myapp/ma.jnlp" within a webbrowser or could also call "javaws https://my-site.de/myapp/ma.jnlp" to start the application client.
The webserver has a certificate from a trusted certificate authority. This certificate seems to be ok, the browser is even configured to perform OCSP status check.
The application files are signed with a certificate from another trusted certificate authority. This certificate seems also to be ok. Regarding this certificate there
are no problems with certificate revocation checks.
The problem is, while starting the application client there is a message box which tell us something like "the connection to this website ist not trustworthy",
"Website: https://my-site.de:80", and something about an invalid certificate, meaning the webserver certificate.
Obviously the jvm runtime, which is executed on the users workstation, tries to perform a revocation check for the webservers certificate, but this fails because
it cannot fetch the certificate under https://my-site.de:80.
The application will execute without further problems after that message but the users are very concerned about the "invalid" certificate, so here are my questions:
- Why is the application trying to get the webserver certificate over Port 80. Our application developers told me, there is no corresponding statement. Calling this address
has to fail while "https://my-site.de:443" or "https://my-site.de" would not have a problem.
- Is there a way to make the application go on without performing a tls revocation check? I mean, by adjusting the application sourcecode and not by configuring the users Java Control Panel.
While disabling the TLS Certificate Revocation check in the Java Control Panel, the Webstart Application executes without a warning message, but this is not a workable solution for
our users.
It would be great if someone can help me with a hint so i can send our developers into the right direction;-)
Many thanks!
This is a part from a java console output after calling "javaws -verbose https://my-site.de/myapp/"
(sorry for this is in german... and also my english above)
network: Verbindung von http://ocsp.serverpass.telesec.de/ocspr mit Proxy=HTTP @ internet-proxy.***:80 wird hergestellt
network: Verbindung von http://ocsp.serverpass.telesec.de/ocspr mit Proxy=HTTP @ internet-proxy.***:80 wird hergestellt
security: OCSP Response: GOOD
network: Verbindung von http://ocsp.serverpass.telesec.de/ocspr mit Proxy=HTTP @ internet-proxy.***:80 wird hergestellt
security: UNAUTHORIZED
security: Failing over to CRLs: java.security.cert.CertPathValidatorException: OCSP response error: UNAUTHORIZED
network: Cacheeintrag gefunden [URL: http://crl.serverpass.telesec.de/rl/TeleSec_ServerPass_CA_1.crl, Version: null] prevalidated=false/0
cache: Adding MemoryCache entry: http://crl.serverpass.telesec.de/rl/TeleSec_ServerPass_CA_1.crl
cache: Resource http://crl.serverpass.telesec.de/rl/TeleSec_ServerPass_CA_1.crl has expired.
network: Verbindung von http://crl.serverpass.telesec.de/rl/TeleSec_ServerPass_CA_1.crl mit Proxy=HTTP @ internet-proxy.***:80 wird hergestellt
network: Verbindung von http://crl.serverpass.telesec.de/rl/TeleSec_ServerPass_CA_1.crl mit Proxy=HTTP @ internet-proxy.***:80 wird hergestellt
network: ResponseCode für http://crl.serverpass.telesec.de/rl/TeleSec_ServerPass_CA_1.crl: 200
network: Codierung für http://crl.serverpass.telesec.de/rl/TeleSec_ServerPass_CA_1.crl: null
network: Verbindung mit http://crl.serverpass.telesec.de/rl/TeleSec_ServerPass_CA_1.crl trennen
CacheEntry[http://crl.serverpass.telesec.de/rl/TeleSec_ServerPass_CA_1.crl]: updateAvailable=true,lastModified=Tue Mar 24 10:50:01 CET 2015,length=53241
network: Verbindung von http://crl.serverpass.telesec.de/rl/TeleSec_ServerPass_CA_1.crl mit Proxy=HTTP @ internet-proxy.***:80 wird
network: Verbindung von socket://ldap.serverpass.telesec.de:389 mit Proxy=DIRECT wird hergestellt
security: Revocation Status Unknown
com.sun.deploy.security.RevocationChecker$StatusUnknownException: java.security.cert.CertPathValidatorException: OCSP response error: UNAUTHORIZED
at com.sun.deploy.security.RevocationChecker.checkOCSP(Unknown Source)
at com.sun.deploy.security.RevocationChecker.check(Unknown Source)
at com.sun.deploy.security.RevocationCheckHelper.doRevocationCheck(Unknown Source)
at com.sun.deploy.security.RevocationCheckHelper.doRevocationCheck(Unknown Source)
at com.sun.deploy.security.RevocationCheckHelper.checkRevocationStatus(Unknown Source)
at com.sun.deploy.security.X509TrustManagerDelegate.checkTrusted(Unknown Source)
at com.sun.deploy.security.X509Extended7DeployTrustManagerDelegate.checkServerTrusted(Unknown Source)
at com.sun.deploy.security.X509Extended7DeployTrustManager.checkServerTrusted(Unknown Source)
at sun.security.ssl.ClientHandshaker.serverCertificate(Unknown Source)
at sun.security.ssl.ClientHandshaker.processMessage(Unknown Source)
at sun.security.ssl.Handshaker.processLoop(Unknown Source)
at sun.security.ssl.Handshaker.process_record(Unknown Source)
at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source)
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source)
at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Unknown Source)
at com.sun.deploy.net.HttpUtils.followRedirects(Unknown Source)
at com.sun.deploy.net.BasicHttpRequest.doRequest(Unknown Source)
at com.sun.deploy.net.BasicHttpRequest.doGetRequestEX(Unknown Source)
at com.sun.deploy.cache.ResourceProviderImpl.checkUpdateAvailable(Unknown Source)
at com.sun.deploy.cache.ResourceProviderImpl.isUpdateAvailable(Unknown Source)
at com.sun.deploy.cache.ResourceProviderImpl.getResource(Unknown Source)
at com.sun.deploy.cache.ResourceProviderImpl.getResource(Unknown Source)
at com.sun.deploy.model.ResourceProvider.getResource(Unknown Source)
at com.sun.javaws.jnl.LaunchDescFactory._buildDescriptor(Unknown Source)
at com.sun.javaws.jnl.LaunchDescFactory.buildDescriptor(Unknown Source)
at com.sun.javaws.jnl.LaunchDescFactory.buildDescriptor(Unknown Source)
at com.sun.javaws.Main.launchApp(Unknown Source)
at com.sun.javaws.Main.continueInSecureThread(Unknown Source)
at com.sun.javaws.Main.access$000(Unknown Source)
at com.sun.javaws.Main$1.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Suppressed: com.sun.deploy.security.RevocationChecker$StatusUnknownException
at com.sun.deploy.security.RevocationChecker.checkCRLs(Unknown Source)
... 35 more
Caused by: java.security.cert.CertPathValidatorException: OCSP response error: UNAUTHORIZED
at sun.security.provider.certpath.OCSP.check(Unknown Source)
at sun.security.provider.certpath.OCSP.check(Unknown Source)
at sun.security.provider.certpath.OCSP.check(Unknown Source)
... 36 more
security: Ungültiges Zertifikat vom HTTPS-Server
network: Cacheeintrag nicht gefunden [URL: https://my-site.de:80, Version: null]Add the JSF Jars to the WEB-INF/lib directory of the application. If still getting error add to the CLASSPATH variable in the startWebLogic script in the domain/bin directory.
-
Hello,
I am having a strange problem with Tomcat and axis. I have a webservice that uses axis2 for wsdl2java class generation. When I compile my project in maven a Test is performed. During the test a glassfish server is established and the project is deployed -everything work great with the expected results. However when I try to deploy the webservice on tomcat it has some problems.
At first I tried to call axis code in a POST method that takes a MultiPart message. The code is as below:
*@Path("identifyWavestream")*
*@POST*
*@Consumes(MediaType.MULTIPART_FORM_DATA)*
*@Produces(MediaType.APPLICATION_XML)*
*public String multipartTest(com.sun.jersey.multipart.MultiPart multiPart) throws Exception {*
*// get first body part (index 0)*
*//tomcat shows that the first error is here (line 122 is the nest one with bodypart)*
BodyPart bp = multiPart.getBodyParts().get(0);
BodyPartEntity bodyPartEntity = (BodyPartEntity) bp.getEntity();
InputStream stream = bodyPartEntity.getInputStream();
*//the rest of the code either saves the incoming file or implements the wsdl2java axis interface - neither works.*
And the tomcat error is:
java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
java.util.ArrayList.RangeCheck(Unknown Source)
java.util.ArrayList.get(Unknown Source)
com.webserv.rest.resources.SearchResource.test.multipartTest(SearchResource.java:122)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
java.lang.reflect.Method.invoke(Unknown Source)
com.sun.jersey.server.impl.model.method.dispatch.EntityParamDispatchProvider$TypeOutInvoker._dispatch(EntityParamDispatchProvider.java:138)
com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:67)
com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:124)
com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:111)
com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:71)
com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:111)
com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:63)
com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:555)
com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:514)
com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:505)
com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:359)
javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
It was strange to me since this simple approach of handling a Multipart method worked for me earlier. Then I decided skip the handling of multipart method and just call the axis code. But the results also caused an error. I then tried to call the axis code in a simple @GET method (to cross out any issues regarding the multipart) and the result where the same. Again everything works on the maven- glassfish test. In this case the tomcat error is the following:
javax.servlet.ServletException: java.lang.NoSuchMethodError: org.apache.commons.httpclient.HttpConnectionManager.getParams()Lorg/apache/commons/httpclient/params/HttpConnectionManagerParams;
com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:361)
javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
root cause
com.sun.jersey.api.container.MappableContainerException: java.lang.NoSuchMethodError: org.apache.commons.httpclient.HttpConnectionManager.getParams()Lorg/apache/commons/httpclient/params/HttpConnectionManagerParams;
com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:74)
com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:124)
com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:111)
com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:71)
com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:111)
com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:63)
com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:555)
com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:514)
com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:505)
com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:359)
javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
root cause
java.lang.NoSuchMethodError: org.apache.commons.httpclient.HttpConnectionManager.getParams()Lorg/apache/commons/httpclient/params/HttpConnectionManagerParams;
org.apache.axis2.transport.http.AbstractHTTPSender.initializeTimeouts(AbstractHTTPSender.java:454)
org.apache.axis2.transport.http.AbstractHTTPSender.getHttpClient(AbstractHTTPSender.java:514)
org.apache.axis2.transport.http.HTTPSender.sendViaPost(HTTPSender.java:156)
org.apache.axis2.transport.http.HTTPSender.send(HTTPSender.java:75)
org.apache.axis2.transport.http.CommonsHTTPTransportSender.writeMessageWithCommons(CommonsHTTPTransportSender.java:371)
org.apache.axis2.transport.http.CommonsHTTPTransportSender.invoke(CommonsHTTPTransportSender.java:209)
org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:448)
org.apache.axis2.description.OutInAxisOperationClient.send(OutInAxisOperation.java:401)
org.apache.axis2.description.OutInAxisOperationClient.executeImpl(OutInAxisOperation.java:228)
org.apache.axis2.client.OperationClient.execute(OperationClient.java:163)
com.webserv.rest.webapp.IntSoapServiceStub.getServerData(IntSoapServiceStub.java:2447)
com.webserv..rest.resources.AIntSoapImpl.getServerData(AIntSoapImpl.java:112)
com.webserv..rest.resources.SearchResource.test.pingTest(SearchResource.java:167)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
java.lang.reflect.Method.invoke(Unknown Source)
com.sun.jersey.server.impl.model.method.dispatch.EntityParamDispatchProvider$TypeOutInvoker._dispatch(EntityParamDispatchProvider.java:138)
com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:67)
com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:124)
com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:111)
com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:71)
com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:111)
com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:63)
com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:555)
com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:514)
com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:505)
com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:359)
javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
I think it is also a good ide to post the pom.xml file :
Edited by: 803864 on 2010-10-21 00:30I think it is also a good ide to post the pom.xml file:
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"+
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+<modelVersion>4.0.0</modelVersion>+
+<groupId>com.myProjects</groupId>+
+<artifactId>audioid-rest-interface</artifactId>+
+<packaging>war</packaging>+
+<name>AudioID Rest Interface</name>+
+<version>0.1</version>+
+<dependencies>+
+<!--+
+<dependency>+
+<groupId>com.sun.tools.xjc.maven2</groupId>+
+<artifactId>maven-jaxb-plugin</artifactId>+
+<version>1.1</version>+
+<scope>test</scope>+
+</dependency>+
+<dependency>+
+<groupId>com.sun.jersey</groupId>+
+<artifactId>jersey-client</artifactId>+
+<version>1.0.1</version>+
+</dependency>+
+<dependency>+
+<groupId>com.sun.jersey.contribs</groupId>+
+<artifactId>jersey-multipart</artifactId>+
+<version>1.0.1</version>+
+</dependency>+
+<dependency>+
+<groupId>com.sun.grizzly</groupId>+
+<artifactId>grizzly-servlet-webserver</artifactId>+
+<version>1.9.0</version>+
+<scope>test</scope>+
+</dependency>-->+
+<dependency>+
+<groupId>com.sun.jersey.contribs</groupId>+
+<artifactId>jersey-multipart</artifactId>+
+<version>1.0.1</version>+
+</dependency>+
+<dependency>+
+<groupId>com.sun.jersey</groupId>+
+<artifactId>jersey-client</artifactId>+
+<version>1.0.1</version>+
+</dependency>+
+<dependency>+
+<groupId>com.sun.jersey</groupId>+
+<artifactId>jersey-bundle</artifactId>+
+<version>1.0.1</version>+
+</dependency>+
+<dependency>+
+<groupId>commons-logging</groupId>+
+<artifactId>commons-logging</artifactId>+
+<version>1.0.4</version>+
+</dependency>+
+<dependency>+
+<groupId>commons-collections</groupId>+
+<artifactId>commons-collections</artifactId>+
+<version>3.1</version>+
+</dependency>+
+<dependency>+
+<groupId>org.slf4j</groupId>+
+<artifactId>slf4j-log4j12</artifactId>+
+<version>1.5.6</version>+
+</dependency>+
+<dependency>+
+<groupId>junit</groupId>+
+<artifactId>junit</artifactId>+
+<version>3.8.2</version>+
+<scope>test</scope>+
+</dependency>+
+<dependency>+
+<groupId>org.glassfish.distributions</groupId>+
+<artifactId>web-all</artifactId>+
+<version>10.0-build-20080430</version>+
+<scope>test</scope>+
+</dependency>+
+<dependency>+
+<groupId>org.glassfish.embedded</groupId>+
+<artifactId>gf-embedded-api</artifactId>+
+<version>1.0-alpha-4</version>+
+<scope>test</scope>+
+</dependency>+
+<dependency>+
+<groupId>com.sun.jersey</groupId>+
+<artifactId>jersey-server</artifactId>+
+<version>1.0.3.1</version>+
+<scope>test</scope>+
+</dependency>+
+<dependency>+
+<groupId>com.sun.jersey.contribs</groupId>+
+<artifactId>maven-wadl-plugin</artifactId>+
+<version>1.0.3.1</version>+
+</dependency>+
+<dependency>+
+<groupId>org.hibernate</groupId>+
+<artifactId>hibernate</artifactId>+
+<version>3.2.5.ga</version>+
+<exclusions>+
+<exclusion>+
+<groupId>javax.transaction</groupId>+
+<artifactId>jta</artifactId>+
+</exclusion>+
+<exclusion>+
+<groupId>cglib</groupId>+
+<artifactId>cglib</artifactId>+
+</exclusion>+
+</exclusions>+
+</dependency>+
+<dependency>+
+<groupId>org.apache.axis2</groupId>+
+<artifactId>axis2</artifactId>+
+<version>1.4.1</version>+
+</dependency>+
+<!-- <dependency> -->+
+<dependency>+
+<groupId>org.apache.axis2</groupId>+
+<artifactId>axis2-aar-maven-plugin</artifactId>+
+<version>1.4.1</version>+
+<scope>test</scope>+
+</dependency>+
+<dependency>+
+<groupId>org.apache.axis2</groupId>+
+<artifactId>axis2-java2wsdl</artifactId>+
+<version>1.4.1</version>+
+<scope>test</scope>+
+</dependency>+
+<dependency>+
+<groupId>org.apache.axis2</groupId>+
+<artifactId>axis2-xmlbeans</artifactId>+
+<version>1.4.1</version>+
+</dependency>+
+<!-- <dependency> -->+
+<dependency>+
+<groupId>com.sun.xml.bind</groupId>+
+<artifactId>jaxb-impl</artifactId>+
+<version>2.1.12</version>+
+</dependency>+
+<dependency>+
+<groupId>cglib</groupId>+
+<artifactId>cglib-nodep</artifactId>+
+<version>2.1_3</version>+
+</dependency>+
+</dependencies>+
+<build>+
+<finalName>audioid-rest-interface</finalName>+
+<plugins>+
+<plugin>+
+<!-- This class is just generated for wadl support!!! -->+
+<!-- Take care that folder ../music-dna-core is existing -->+
+<groupId>com.sun.tools.xjc.maven2</groupId>+
+<artifactId>maven-jaxb-plugin</artifactId>+
+<version>1.1</version>+
+<executions>+
+<execution>+
+<phase>generate-sources</phase>+
+<goals>+
+<goal>generate</goal>+
+</goals>+
+</execution>+
+</executions>+
+<configuration>+
+<generatePackage> com.webserv.wsparameters</generatePackage>+
+<schemaDirectory>../audioid-rest-interface/src/main/resources+
+</schemaDirectory>+
+<includeSchemas>+
+<includeSchema>**/*.xsd</includeSchema>+
+</includeSchemas>+
+<extension>true</extension>+
+<strict>false</strict>+
+<verbose>false</verbose>+
+</configuration>+
+</plugin>+
+<plugin>+
+<groupId>org.apache.maven.plugins</groupId>+
+<artifactId>maven-javadoc-plugin</artifactId>+
+<!-- <version>2.6</version> -->+
+<executions>+
+<execution>+
+<goals>+
+<goal>javadoc</goal>+
+</goals>+
+<phase>compile</phase>+
+</execution>+
+</executions>+
+<configuration>+
+<encoding>UTF-8</encoding>+
+<verbose>false</verbose>+
+<show>public</show>+
+<subpackages> com.webserv.rest.rest.resources: com.webserv.rest.rest.commons: com.webserv.wsparameters+
+</subpackages>+
+<doclet>com.sun.jersey.wadl.resourcedoc.ResourceDoclet</doclet>+
+<docletPath>${path.separator}${project.build.outputDirectory}+
+</docletPath>+
+<docletArtifacts>+
+<docletArtifact>+
+<groupId>com.sun.jersey.contribs</groupId>+
+<artifactId>wadl-resourcedoc-doclet</artifactId>+
+<version>1.0.3.1</version>+
+</docletArtifact>+
+<docletArtifact>+
+<groupId>com.sun.jersey</groupId>+
+<artifactId>jersey-server</artifactId>+
+<version>1.0.3.1</version>+
+</docletArtifact>+
+<docletArtifact>+
+<groupId>xerces</groupId>+
+<artifactId>xercesImpl</artifactId>+
+<version>2.6.1</version>+
+</docletArtifact>+
+</docletArtifacts>+
+<additionalparam>-output+
+${project.build.outputDirectory}/resourcedoc.xml</additionalparam>+
+<useStandardDocletOptions>false</useStandardDocletOptions>+
+</configuration>+
+</plugin>+
+<plugin>+
+<groupId>com.sun.jersey.contribs</groupId>+
+<artifactId>maven-wadl-plugin</artifactId>+
+<version>1.0.3.1</version>+
+<executions>+
+<execution>+
+<id>generate</id>+
+<goals>+
+<goal>generate</goal>+
+</goals>+
+<phase>compile</phase>+
+</execution>+
+</executions>+
+<configuration>+
+<wadlFile>${project.build.outputDirectory}/application.wadl+
+</wadlFile>+
+<formatWadlFile>true</formatWadlFile>+
+<baseUri>http://192.168.2.149:8080/${project.build.finalName}+
+</baseUri>+
+<packagesResourceConfig>+
+<param> com.webserv.rest.resources</param>+
+</packagesResourceConfig>+
+<wadlGenerators>+
+<wadlGeneratorDescription>+
+<className>com.sun.jersey.server.wadl.generators.WadlGeneratorApplicationDoc+
+</className>+
+<properties>+
+<property>+
+<name>applicationDocsFile</name>+
+<value>${basedir}/src/main/doc/application-doc.xml</value>+
+</property>+
+</properties>+
+</wadlGeneratorDescription>+
+<wadlGeneratorDescription>+
+<className>com.sun.jersey.server.wadl.generators.WadlGeneratorGrammarsSupport+
+</className>+
+<properties>+
+<property>+
+<name>grammarsFile</name>+
+<value>${basedir}/src/main/doc/application-grammars.xml</value>+
+</property>+
+</properties>+
+</wadlGeneratorDescription>+
+<wadlGeneratorDescription>+
+<className>com.sun.jersey.server.wadl.generators.resourcedoc.WadlGeneratorResourceDocSupport+
+</className>+
+<properties>+
+<property>+
+<name>resourceDocFile</name>+
+<value>${project.build.outputDirectory}/resourcedoc.xml</value>+
+</property>+
+</properties>+
+</wadlGeneratorDescription>+
+</wadlGenerators>+
+</configuration>+
+</plugin>+
+<plugin>+
+<groupId>org.codehaus.mojo</groupId>+
+<artifactId>exec-maven-plugin</artifactId>+
+<version>1.1</version>+
+<executions>+
+<execution>+
+<goals>+
+<goal>java</goal>+
+</goals>+
+</execution>+
+</executions>+
+<configuration>+
+<mainClass>com.sun.jersey.samples.generatewadl.Main</mainClass>+
+</configuration>+
+</plugin>+
+<plugin>+
+<groupId>org.apache.maven.plugins</groupId>+
+<artifactId>maven-compiler-plugin</artifactId>+
+<inherited>true</inherited>+
+<configuration>+
+<source>1.5</source>+
+<target>1.5</target>+
+<!--+
exclude temporary types that are only needed for wadl and doc
generation
-->
+<!--+
+<excludes> <exclude>com/webserv/types/temporary/**</exclude>+
+<exclude>com/webserv/rest/commons/Examples.java</exclude>+
+</excludes>+
-->
+</configuration>+
+</plugin>+
+<plugin>+
+<groupId>org.jvnet.jaxb2.maven2</groupId>+
+<artifactId>maven-jaxb2-plugin</artifactId>+
+<executions>+
+<execution>+
+<goals>+
+<goal>generate</goal>+
+</goals>+
+</execution>+
+</executions>+
+</plugin>+
+<plugin>+
+<groupId>org.apache.axis2</groupId>+
+<artifactId>axis2-wsdl2code-maven-plugin</artifactId>+
+<version>1.4.1</version>+
+<executions>+
+<execution>+
+<id>generate reco core</id>+
+<goals>+
+<goal>wsdl2code</goal>+
+</goals>+
+<configuration>+
+<packageName>com.webserv.rest.webapp</packageName>+
+<wsdlFile>src/main/java/com/webserv/wsdl/web.wsdl</wsdlFile>+
+<databindingName>adb</databindingName>+
+</configuration>+
+</execution>+
+</executions>+
+</plugin>+
+<plugin>+
+<groupId>com.sun.tools.xjc.maven2</groupId>+
+<artifactId>maven-jaxb-plugin</artifactId>+
+<version>1.1</version>+
+<executions>+
+<execution>+
+<goals>+
+<goal>generate</goal>+
+</goals>+
+</execution>+
+</executions>+
+<configuration>+
+<generatePackage>com.webserv.wsparameters</generatePackage>+
+<schemaDirectory>src/main/xsd</schemaDirectory> <includeSchemas>+
+<includeSchema>**/*.xsd</includeSchema> </includeSchemas>+
+<extension>true</extension>+
+<strict>false</strict>+
+<verbose>true</verbose>+
+</configuration>+
+</plugin>+
+</plugins>+
+</build>+
+<profiles>+
+<profile>+
+<id>jdk-1.5</id>+
+<activation>+
+<jdk>1.5</jdk>+
+</activation>+
+<dependencies>+
+<dependency>+
+<groupId>com.sun.xml.bind</groupId>+
+<artifactId>jaxb-impl</artifactId>+
+<version>2.1.10</version>+
+</dependency>+
+</dependencies>+
+<build>+
+<plugins>+
+<plugin>+
+<groupId>org.apache.maven.plugins</groupId>+
+<artifactId>maven-javadoc-plugin</artifactId>+
+<configuration>+
+<docletArtifacts>+
+<docletArtifact>+
+<groupId>com.sun.jersey.contribs</groupId>+
+<artifactId>maven-wadl-plugin</artifactId>+
+<version>1.0.3.1</version>+
+</docletArtifact>+
+<docletArtifact>+
+<groupId>com.sun.jersey.contribs</groupId>+
+<artifactId>wadl-resourcedoc-doclet</artifactId>+
+<version>1.0.3.1</version>+
+</docletArtifact>+
+<docletArtifact>+
+<groupId>com.sun.jersey</groupId>+
+<artifactId>jersey-server</artifactId>+
+<version>1.0.3.1</version>+
+</docletArtifact>+
+<docletArtifact>+
+<groupId>xerces</groupId>+
+<artifactId>xercesImpl</artifactId>+
+<version>2.6.1</version>+
+</docletArtifact>+
+<docletArtifact>+
+<groupId>javax.xml.bind</groupId>+
+<artifactId>jaxb-api</artifactId>+
+<version>2.1</version>+
+</docletArtifact>+
+<docletArtifact>+
+<groupId>javax.xml</groupId>+
+<artifactId>jaxb-impl</artifactId>+
+<version>2.1</version>+
+</docletArtifact>+
+<docletArtifact>+
+<groupId>javax.activation</groupId>+
+<artifactId>activation</artifactId>+
+<version>1.1</version>+
+</docletArtifact>+
+<docletArtifact>+
+<groupId>javax.xml.stream</groupId>+
+<artifactId>stax-api</artifactId>+
+<version>1.0</version>+
+</docletArtifact>+
+</docletArtifacts>+
+</configuration>+
+</plugin>+
+</plugins>+
+</build>+
+</profile>+
+<profile>+
+<id>xsltproc</id>+
+<activation>+
+<file>+
+<exists>../xsltproc_win32/xsltproc.exe</exists>+
+</file>+
+</activation>+
+<build>+
+<plugins>+
+<!-- Create/generate the application.html using xsltproc -->+
+<!-- Create/generate the application.html using xsltproc -->+
+<plugin>+
+<groupId>org.codehaus.mojo</groupId>+
+<artifactId>exec-maven-plugin</artifactId>+
+<version>1.1</version>+
+<executions>+
+<execution>+
+<id>copy-docs-to-builddir</id>+
+<goals>+
+<goal>exec</goal>+
+</goals>+
+<phase>compile</phase>+
+<configuration>+
+<executable>copy</executable>+
+<commandlineArgs>src\\main\\doc\\*.* target\\classes+
+</commandlineArgs>+
+</configuration>+
+</execution>+
+<execution>+
+<id>prepare-xsltproc</id>+
+<goals>+
+<goal>exec</goal>+
+</goals>+
+<phase>package</phase>+
+<configuration>+
+<executable>copy</executable>+
+<commandlineArgs>..\\audioid-rest-interface\\src\\main\\resources\\*.xsd+
target\\classes</commandlineArgs>
+</configuration>+
+</execution>+
+<execution>+
+<id>exec-xsltproc: target/application.html</id>+
+<goals>+
+<goal>exec</goal>+
+</goals>+
+<phase>package</phase>+
+<configuration>+
+<!--<executable>xsltproc</executable>-->+
+<executable>../xsltproc_win32/xsltproc.exe</executable>+
+<commandlineArgs>-o target/application.html+
src/main/doc/wadl_documentation.xsl
target/classes/application.wadl</commandlineArgs>
+</configuration>+
+</execution>+
+</executions>+
+</plugin>+
+</plugins>+
+</build>+
+</profile>+
+</profiles>+
+<pluginRepositories>+
+<pluginRepository>+
+<id>maven2-repository.dev.java.net</id>+
+<name>Java.net Repository for Maven</name>+
+<url>http://download.java.net/maven/2/</url>+
+<layout>default</layout>+
+</pluginRepository>+
+<pluginRepository>+
+<id>maven-repository.dev.java.net</id>+
+<name>Java.net Maven 1 Repository (legacy)</name>+
+<url>http://download.java.net/maven/1</url>+
+<layout>legacy</layout>+
+</pluginRepository>+
+</pluginRepositories>+
+<repositories>+
+<repository>+
+<id>maven2-repository.dev.java.net</id>+
+<name>Java.net Repository for Maven</name>+
+<url>http://download.java.net/maven/2/</url>+
+<layout>default</layout>+
+</repository>+
+<repository>+
+<id>maven-repository.dev.java.net</id>+
+<name>Java.net Maven 1 Repository (legacy)</name>+
+<url>http://download.java.net/maven/1</url>+
+<layout>legacy</layout>+
+</repository>+
+<repository>+
+<id>glassfish-repository</id>+
+<name>Java.net Repository for Glassfish</name>+
+<url>http://download.java.net/maven/glassfish</url>+
+</repository>+
+</repositories>+
+</project>+
Can anyonr contribute? -
Problem with Thread and InputStream
Hi,
I am having a problem with threads and InputStreams. I have a class which
extends Thread. I have created and started four instances of this class. But
only one instance finishes its' work. When I check the state of other three
threads their state remains Runnable.
What I want to do is to open four InputStreams which are running in four
threads, which reads from the same url.
This is what I have written in my thread class's run method,
public void run()
URL url = new URL("http://localhost/test/myFile.exe");
URLConnection conn = url.openConnection();
InputStream istream = conn.getInputStream();
System.out.println("input stream taken");
If I close the input stream at the end of the run method, then other threads
also works fine. But I do not want to close it becuase I have to read data
from it later.
The file(myFile.exe) I am trying to read is about 35 MB in size.
When I try to read a file which is about 10 KB all the threads work well.
Plz teach me how to solve this problem.
I am using JDK 1.5 and Win XP home edition.
Thanks in advance,
Chamal.I dunno if we should be doing such things as this code does, but it works fine for me. All threads get completed.
public class ThreadURL implements Runnable
/* (non-Javadoc)
* @see java.lang.Runnable#run()
public void run()
try
URL url = new URL("http://localhost:7777/java/install/");
URLConnection conn = url.openConnection();
InputStream istream = conn.getInputStream();
System.out.println("input stream taken by "+Thread.currentThread().getName());
istream.close();
System.out.println("input stream closed by "+Thread.currentThread().getName());
catch (MalformedURLException e)
System.out.println(e);
//TODO Handle exception.
catch (IOException e)
System.out.println(e);
//TODO Handle exception.
public static void main(String[] args)
ThreadURL u = new ThreadURL();
Thread t = new Thread(u,"1");
Thread t1 = new Thread(u,"2");
Thread t2 = new Thread(u,"3");
Thread t3 = new Thread(u,"4");
t.start();
t1.start();
t2.start();
t3.start();
}And this is the o/p i got
input stream taken by 2
input stream closed by 2
input stream taken by 4
input stream closed by 4
input stream taken by 3
input stream closed by 3
input stream taken by 1
input stream closed by 1
can u paste your whole code ?
ram. -
Problem With ObjectSream and GUI
Hi
I had a problem with the sendBtn ActionListener. When i press the send button the application freeze and the button freeze pressed.
But when i put some code to do the same think that send button should do, into the main method everything works fine. Any help?
Thanks in advanced and sorry for my english
//Some imports
public class SampleCommunicationAgentGUI extends BaseCommunicationAgent {
public SampleCommunicationAgentGUI(String name) {
super(name);
try {
connectToACS("127.0.0.1", 3333);
} catch (IOException e) {
System.out.print("\nNetwork error while connecting to ACS ("
+ e.getMessage() + ")");
} catch (ClassNotFoundException e) {
System.out.print("\nNetwork error while connecting to ACS ("
+ e.getMessage() + ")");
frame = new SampleAgentFrame(name);
frame.sendBtn.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
KQML message = new KQML();
message.setSender(getName());
message.setReceiver(frame.receiverField.getText());
message.setContent(frame.contentField.getText());
message.setInReplyTo(frame.inReplyToField.getText());
message.setLanguage(frame.languageField.getText());
message.setOntology(frame.ontologyField.getText());
message.setPerformative(frame.perfomativeField.getText());
message.setReplyWith(frame.inReplayWithField.getText());
System.out.println(message.getTotalMsg());
try {
sendMessage(message); // A method of BaseCommunicationAgent
} catch (Exception e) {
e.printStackTrace();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.validate();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
public static SampleAgentFrame frame;
public static void main(String[] args) {
KQML message;
SampleCommunicationAgentGUI agent = new SampleCommunicationAgentGUI("Chris");
if (!agent.getACSStatus().equals(ACSStatus.CONNECTED)) {
System.out.println("\nERROR: Could not connect on ACS!");
return;
/*If i put this code here everything works fine
* message = new KQML();
* agent.sendMessage(message);
while (true) {
message = agent.getMessage();
frame.messageTextArea.append(message.getContent() + "\r\n");
protected static class SampleAgentFrame extends JFrame {
//Some variables
public SampleAgentFrame(String name) {
setTitle(name);
initComponents(name);
* Initializes the GUI.
private void initComponents(String name) {
//Inits the GUI but is to big to post it.
}And the BaseCommunicationAgent
//Some imports
public class BaseCommunicationAgent extends BaseAgent {
public static enum ACSStatus {
INITIALIZING, INITIALIZED, CONNECTING, CONNECTED
private Socket socketACS;
private ObjectOutputStream dataOut;
private ObjectInputStream dataIn;
protected ACSStatus statusACS;
private KQML kqmlMessage;
public BaseCommunicationAgent(String name) {
super(name);
statusACS = ACSStatus.INITIALIZING;
socket = null;
dataOut = null;
dataOut = null;
kqmlMessage = null;
statusACS = ACSStatus.INITIALIZED;
protected synchronized boolean connectToACS(String address, int port)
throws IOException, ClassNotFoundException {
try {
statusACS = ACSStatus.CONNECTING;
socketACS = new Socket(address, port);
dataOut = new ObjectOutputStream(socketACS.getOutputStream());
dataIn = new ObjectInputStream(socketACS.getInputStream());
kqmlMessage = new KQML();
KQML message;
boolean isComment;
do {
message = (KQML) dataIn.readObject();
isComment = message.getPerformative().equals("comment");
if (isComment) {
System.out.println(message.getContent());
} while (isComment);
if (message.getPerformative().equals("identify")) {
kqmlMessage.resetMessage();
kqmlMessage.setPerformative("who-am-i");
kqmlMessage.setSender(getName());
dataOut.writeObject(kqmlMessage);
dataOut.flush();
dataOut.reset();
do {
message = (KQML) dataIn.readObject();
isComment = message.getPerformative().equals("comment");
if (isComment) {
System.out.println(message.getContent());
} while (isComment);
if (message.getPerformative().equals("registered")) {
statusACS = ACSStatus.CONNECTED;
} else {
System.out.println(message.getContent());
socketACS.close();
statusACS = ACSStatus.INITIALIZING;
} else {
System.out.println(message.getContent());
socketACS.close();
statusACS = ACSStatus.INITIALIZING;
} catch (IOException e) {
statusACS = ACSStatus.INITIALIZING;
throw e;
} catch (ClassNotFoundException e) {
statusACS = ACSStatus.INITIALIZING;
throw e;
return statusACS.equals(ACSStatus.CONNECTED);
public ACSStatus getACSStatus() {
return statusACS;
protected synchronized void closeConnectionWithACS() { // Only the
// dataOut.close()
try {
dataOut.flush();
dataOut.close();
dataIn.close();
socketACS.close();
} catch (IOException ex) {
ex.printStackTrace();
protected synchronized void sendMessage(KQML message) throws IOException {
dataOut.writeObject(message);
dataOut.flush();
dataOut.reset();
protected synchronized KQML getMessage() {
KQML message = new KQML();
try {
message = (KQML) dataIn.readObject();
return message;
} catch (IOException e) {
e.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
return message;
}Thanks for the answer. I take a look at Swing Worker but i have a few problems :
1)The GUI doesn't freeze but nothing happens either.
2) When i remove the sendMessage method and i put only a System.out.println(somethingToPrint); it works but only once. After i hit second time my send button nothing happens. Somewhere i read that works only once is that true or i misunderstood? And if yes how i can do it every time i press the send button?
Could you take a look at my code?
Thanks in advanced
//Some imports
public class SampleCommunicationAgentGUI extends BaseCommunicationAgent {
public SampleCommunicationAgentGUI(String name) {
super(name);
try {
// agent.connectToREVE("127.0.0.1", 4444);
connectToACS("127.0.0.1", 3333);
} catch (IOException e) {
System.out.print("\nNetwork error while connecting to ACS ("
+ e.getMessage() + ")");
} catch (ClassNotFoundException e) {
System.out.print("\nNetwork error while connecting to ACS ("
+ e.getMessage() + ")");
final SwingWorker worker =
new SwingWorker() {
@Override
protected KQML doInBackground() throws Exception {
KQML message = new KQML();
message.setSender(getName());
message.setReceiver(frame.receiverField.getText());
message.setContent(frame.contentField.getText());
message.setInReplyTo(frame.inReplyToField.getText());
message.setLanguage(frame.languageField.getText());
message.setOntology(frame.ontologyField.getText());
message.setPerformative(frame.perfomativeField.getText());
message.setReplyWith(frame.inReplayWithField.getText());
System.out.println(message.getTotalMsg());
sendMessage(message);
return message;
frame = new SampleAgentFrame(name);
frame.sendBtn.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
try{
worker.execute();
} catch (Exception e) {
e.printStackTrace();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.validate();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
public static SampleAgentFrame frame;
public static void main(String[] args) {
KQML message;
SampleCommunicationAgentGUI agent = new SampleCommunicationAgentGUI("Chris");
if (!agent.getACSStatus().equals(ACSStatus.CONNECTED)) {
System.out.println("\nERROR: Could not connect on ACS!");
return;
while (true) {
message = agent.getMessage();
frame.messageTextArea.append(message.getContent() + "\r\n");
protected static class SampleAgentFrame extends JFrame {
//Some variables
public SampleAgentFrame(String name) {
setTitle(name);
initComponents(name);
* Initializes the GUI.
private void initComponents(String name) {
//Init components
} -
Problem with Applet for Microsoft VM
Hi there!
I implemented an applet (first for SUN JVM 1.4.1_02) that has to communicate with a servlet via serialized objects. Therefore the applet sends a request and expects the response :
//establish connection
URLConnection l_con= l_url.openConnection();
l_con.setUseCaches(false);
l_con.setDoOutput(true);
l_con.setDoInput(true);
l_con.setRequestProperty("Content-Type", "application/x-java-serialized-object");
//send request to servlet
ObjectOutputStream l_outputStream = new ObjectOutputStream(l_con.getOutputStream());
l_outputStream.writeObject(l_obj);
l_outputStream.flush();
l_outputStream.close();
//get response
ObjectInputStream l_obInStr = new ObjectInputStream(l_con.getInputStream());
l_response = (MyResponseClass)l_obInStr.readObject();
l_obInStr.close();This works absolutely fine for the Sun VM. Now I have to use the Microsoft VM (because I don't want the users to install anything on their clients).
I compiled the client classes like that:
javac -target 1.1 classname.javaThe applet starts correctly but there is a problem with the communication that I recognized in the console:
java.io.IOException: Cannot write output after reading input.
at com/ms/net/wininet/http/HttpURLConnection.getOutputStream (HttpURLConnection.java)
at myclass/MyApplet.callToServlet (MyApplet.java:109)
Does anyone know what this error means ?
Thanks a lot in advance.Hi there!
I solved my problem by removing all the System.out.println-statements that I used for debugging issues.
Anyway, I want to know if there are more restrictions concerning this matter for using the Microsoft VM instead of the Sun VM. (Because it HAS worked with the debugging statements with the Sun VM).
Thank you. -
Problem with charsets for foreign languages
hi
i have a problem with a webapplication
in my webapplication i have some code that gets data from a webpage of another webapplication. This other web application can use many foreign languages
the problem is that those foreign languages contain some special characters, and those special chars aren't displayed the right way
this is the code to get the data from the other webapp
private static StringBuffer getContent(String sUrl) throws MalformedURLException, IOException {
StringBuffer content = new StringBuffer();
URL url = new URL(sUrl);
HttpURLConnection httpURLConn = (HttpURLConnection) url.openConnection();
httpURLConn.setRequestProperty("charset", "utf-8");
BufferedReader buffReader = new BufferedReader(new InputStreamReader(httpURLConn.getInputStream()));
String inputLine;
while ((inputLine = buffReader.readLine()) != null) {
content.append("\n" + inputLine);
return content;
}as you see , i tried to set the encoding to UTF-8 but that did not solve the probleman example of those special chars
fran�aisis displayed as
code]
fran��ais -
Problem with unicode in MIME text/html
Hi;
I have a java program that sends email by sending it to our exchange server using SMTP. The email has both a To and a Bcc in the single email sent.
The bcc addressee receives the email fine.
The to address however has a problem with chars that are > 0x7f in the html. The html uses utf-8. But the displayed characters look as though the utf-8 part was ignored.
Also weird, if I go to view, options in Outlook for the bcc email (which is good) it shows:
MIME-Version: 1.0
Content-Type: multipart/alternative;
boundary="----=_Part_0_32437168.1135634913407"
Return-Path: [email protected]
X-OriginalArrivalTime: 26 Dec 2005 22:08:33.0366 (UTC) FILETIME=[E94D1F60:01C60A68]
------=_Part_0_32437168.1135634913407
Content-Type: text/plain; charset=Cp1252
Content-Transfer-Encoding: quoted-printable
------=_Part_0_32437168.1135634913407
Content-Type: text/html; charset=Cp1252
Content-Transfer-Encoding: quoted-printable
------=_Part_0_32437168.1135634913407--
But for the to email (which has the problem), it only shows:
MIME-Version: 1.0
Content-Type: multipart/alternative;
boundary="----=_Part_0_32437168.1135634913407"
Return-Path: [email protected]
X-OriginalArrivalTime: 26 Dec 2005 22:08:33.0366 (UTC) FILETIME=[E94D1F60:01C60A68]
Does javamail do anything weird when it gets an email with a to and a bcc and split it up wrong? I just download and installed the latest mail.jar and activation.jar.
thanks - daveOK...this didnt quite cure it for me...but having done this AND then this...
MimeBodyPart htmlText = new MimeBodyPart();
final String htmlStuff = "<?xml version=\"1.0\" encoding=\"utf-8\"?>"
+ "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">"
+ "<html xmlns=\"http://www.w3.org/1999/xhtml\" xml:lang=\"en\" lang=\"en\">"
+ "<head>"
+ "<title>Stuff.</title>"
+ "<meta http-equiv=\"Content-Type\" content=\"application/xhtml+xml; charset=utf-8\"/>"
+ "</head><body>"
+ "<p>Currency Symbols: \u00A3\u00A2\u20A3\u20AC$<p>"
+ "</body></html>";
DataSource htmlSource = new DataSource()
private String stuff = htmlStuff;
private Charset cset = Charset.forName("utf-8");
public String getContentType() { return "text/html"; };
public java.io.InputStream getInputStream() throws IOException
return new ByteArrayInputStream(cset.encode(stuff).array());
public String getName()
return null;
public OutputStream getOutputStream() throws IOException
throw new IOException();
htmlText.setDataHandler(new DataHandler(htmlSource));
htmlText.addHeader("Content-Transfer-Encoding","base64");
This works for me as shown by the Unicode chars in the html.
If you intend to take this to production create a decent external DataHandler class and avoid the use of the anonymous class - which then avoids the need for the final String and the string can come from anywhere then.
Hope this helps,
Barry -
Problems with the Proxy Programme--Please help
Hi All,
I have written a simple proxy server in the form of a servlet. I changed the proxy config of my browser to connect to this servlet hosted on the default context(http://localhost:8080) of the Tomcat 5.0.25 . Well , this servlet internally connects to the proxy of the corporate LAN . The logic that I have applied is as follows. The servlet gets the request from the client (ie the browser in this case) , extracts the headers and contents from the request, sets them to a new request that it forms and finally send this new request to the proxy. When the proxy responds, the servlet collects the response headers and contents adn writes them in its response. To sum up , this servlet transparently carries the requests and responses between the client(browser) and the corporate LAN proxy. Now the problem is this. Let's say , now I am accessing http://www.google.com.The browser sends a request to my servlet with the following headers as they are extracted by my servlet.
ProxyServer:::>posting request
ProxyServer:::>headerValue::> headerName = accept : headerValue=*/*
ProxyServer:::>headerValue::> headerName = referer : headerValue=http://www.google.com/
ProxyServer:::>headerValue::> headerName = accept-language : headerValue=en-us
ProxyServer:::>headerValue::> headerName = proxy-connection : headerValue=Keep-Alive
ProxyServer:::>headerValue::> headerName = user-agent : headerValue=Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; UB1.4_IE6.0_SP1; .NET CLR 1.0.3705; .NET CLR 1.1.4322)
ProxyServer:::>headerValue::> headerName = host : headerValue=www.google.com
ProxyServer:::>headerValue::> headerName = cookie : headerValue=PREF=ID=1be27c0a74f198ca:TM=1082058853:LM=1082058853:S=bu6ORrygzm8AUkm8
ProxyServer:::>postRequest
I set these headers into a new connection opened to the proxy and post a fresh request to the proxy,which, in turn responds with the following headers.
ProxyServer:::>posted request successfully
ProxyServer:::>writing response
ProxyServer:::>writeResponse-->headerName = Proxy-Connection : headerValue = [close]
ProxyServer:::>writeResponse-->headerName = Content-Length : headerValue = [257]
ProxyServer:::>writeResponse-->headerName = Date : headerValue = [Tue, 13 Jul 2004 14:01:40 GMT]
ProxyServer:::>writeResponse-->headerName = Content-Type : headerValue = [text/html]
ProxyServer:::>writeResponse-->headerName = Server : headerValue = [NetCache appliance (NetApp/5.5R2)]
ProxyServer:::>writeResponse-->headerName = Proxy-Authenticate : headerValue = [Basic realm="Charlotte - napxyclt2"]
ProxyServer:::>writeResponse-->headerName = null : headerValue = [HTTP/1.1 407 Proxy Authentication Required]
ProxyServer:::>writeResponse exiting
ProxyServer:::>wrote response successfully
I write these headers back to the client. According to what I was thinking, the client ie the browser would open a new dialog box asking for username/password owing to the presence of the "Proxy-Authenticate " header. But it does not happen that way. Rather the browser stops responsding and displays a blank page. Does anyone know why it happens this way? I am pasting the server prog below for everybody's reference.
package server.proxy;
//import all servlet related classes
import javax.servlet.*;
import javax.servlet.http.*;
import java.util.*;
import java.io.*;
import java.net.*;
import server.resources.*;
//My Proxy server --->Currently it is very simplea and relies on
//other proxy servers of an already connected network.
public class ProxyServer extends HttpServlet
//stores the resource bundle
private ServerResBundle resBundle = null;
//checks for the mode of operation
private boolean proxySet = false;
private String proxy = null;
//storing the original System out/err etc
private PrintStream sysOutOrig = null;
private PrintStream sysErrOrig = null;
private InputStream sysInOrig = null;
//initialise certain features that are required later
public void init() throws ServletException
try
//initialise the resource bundle
this.initResBundle();
System.out.println("ProxyServer:::>res bundle init");
//set the mode of operation
this.setMode();
System.out.println("ProxyServer:::>mode set");
//set the system out and err --System.setOut etc
this.setSystemOutErr();
System.out.println("ProxyServer:::>in/out/err set");
}//End try
catch(Exception e)
System.out.println("Exception in init..."+(e.getMessage()));
throw new ServletException(e);
}//Edn
catch(Throwable e)
System.out.println("Irrecoverable Error...");
throw new ServletException(e);
}//End
}//End init
//method to init the resource bundle;
private void initResBundle()
this.resBundle = ServerResBundle.getBundle();
}//End
//method to set the mode of the server--proxy or direct
private void setMode()
//read the target proxy property from the bundle and
//if it is set,take that URL
String temp = (String)(this.resBundle.getResource(ResKeys.PROXY_SERVER));
if ( (temp != null) && (temp.length() > 0) )
this.proxySet = true;
this.proxy = temp;
temp = null;
}//End
}//End
//method to set the system out and err etc
private void setSystemOutErr() throws Exception
//keep a copy of the original system out and error
this.sysOutOrig = System.out;
this.sysErrOrig = System.err;
try
//read the options adn if they are set, take the values directly
String newOutStr = (String)(this.resBundle.getResource(ResKeys.SYSTEM_OUT));
String newErrStr = (String)(this.resBundle.getResource(ResKeys.SYSTEM_ERR));
if ((newOutStr != null) && (newOutStr.length() > 0))
System.setOut(new PrintStream(new FileOutputStream(new File(newOutStr),true),true));
}//End if
if ((newErrStr != null) && (newErrStr.length() > 0))
System.setErr(new PrintStream(new FileOutputStream(new File(newErrStr),true),true));
}//End if
}//End
catch(Exception e)
//restore the stuff
System.setOut(this.sysOutOrig);
System.setErr(this.sysErrOrig);
}//End
}//End
//this is where the proxy functionalities will be embedded
public void service(HttpServletRequest req,HttpServletResponse resp)
throws ServletException,java.io.IOException
//conenction URL
URL target = null;
//conenction to the remote object
URLConnection targetConn = null;
//stores the OOS and the OIS
ObjectOutputStream oos = null;
ObjectInputStream ois = null;
try
//check for the mode of operation
if (proxySet)
URLConnection objects go through two phases: first they are created, then they are connected.
After being created, and before being connected, various options can be specified
(e.g., doInput and UseCaches). After connecting, it is an error to try to set them.
Operations that depend on being connected, like getContentLength, will implicitly perform the connection,
if necessary.
//for the URL to the proxy
target=new URL(this.proxy);
//conenct to the proxy
targetConn = target.openConnection();
//set the details of the connectuon
targetConn.setDoInput(true);
targetConn.setDoOutput(true);
targetConn.setUseCaches(false);
// If true, this URL is being examined in a context in which it makes sense to allow user interactions such as popping up an authentication dialog. If false, then no user interaction is allowed
targetConn.setAllowUserInteraction(true);
//connect to the remote object
// targetConn.connect();//call this only when all the request properties are set
System.out.println("ProxyServer:::>posting request");
//post the received request to the URL
this.postRequest(targetConn,req);
System.out.println("ProxyServer:::>posted request successfully");
System.out.println("ProxyServer:::>writing response");
//receive the response
//write the received response to the client
this.writeResponse(targetConn,resp);
System.out.println("ProxyServer:::>wrote response successfully");
}//End if
else
//currently this functionality is not supported
throw new ServletException(
(String)(this.resBundle.getResource(ResKeys.ERR_FUNC_NOTSUPPORTED)));
}//End
}//End try
catch(Exception e)
if(e instanceof ServletException)
throw (ServletException)e;
}//End
if (e instanceof IOException)
throw (IOException)e;
}//End
//wrap it up in ServletException
throw new ServletException(e);
}//End
}//End
//method to write the response back to the client
private void writeResponse(URLConnection targetConn,HttpServletResponse resp)
throws ServletException
//get all the header fields from the response connection and set them to the
//response of the servlet
Map headerFields = null;
Iterator headerFieldEntries = null;
Map.Entry header = null;
//stores the input stream to the conn
BufferedReader brConn = null;
//stores the writer to the response
PrintWriter prResp = null;
//checks if the proxy authentication needed or not
boolean proxyAuthReqd = false;
try
//juste ensuring that the proxy authentication is reset
proxyAuthReqd = false;
if( (targetConn != null) && (resp != null) )
//Returns an unmodifiable Map of the header fields.
//The Map keys are Strings that represent the response-header field names.
//Each Map value is an unmodifiable List of Strings that represents the corresponding
//field values
headerFields = targetConn.getHeaderFields();
//Returns a set view of the mappings contained in this map
Set temp = headerFields.entrySet();
//Returns an iterator over the elements in this set
headerFieldEntries = temp.iterator();
if (headerFieldEntries != null)
while (headerFieldEntries.hasNext())
Object tempHeader = headerFieldEntries.next();
if (tempHeader instanceof Map.Entry)
header = (Map.Entry)tempHeader;
Object headerName = header.getKey();
Object headerValue=header.getValue();
System.out.println("ProxyServer:::>writeResponse-->headerName = "+headerName+" : headerValue = "+headerValue);
//do not select the key-value pair if both the key adn the value are null
if ( ( headerName == null) && (headerValue == null) )
continue;
}//Enmd
if (headerValue != null)
List headerValList = null;
if (headerValue instanceof List)
headerValList = (List)headerValue;
}//End
if(headerValList != null)
for (int i=0;i<headerValList.size();i++)
Object headerValueStr = headerValList.get(i);
if (headerValueStr instanceof String)
//note that the header-key can not be null for addHeader
//I have made this temporary provision to make the programme work.
resp.addHeader(( (headerName==null)? ("null_header"+i) :(String)headerName),
(String)headerValueStr);
//check if the proxy authentication required or not
if (((String)headerValueStr).
indexOf(resp.SC_PROXY_AUTHENTICATION_REQUIRED+"") != -1)
System.out.println("ProxyServer:::>writeResponse-->proxy auth needed");
//proxy authentication is needed
proxyAuthReqd = true;
}//End
}//Ednd of
else if (headerValueStr == null)
resp.addHeader(( (headerName==null)? null :(String)headerName),
null);
}//End
}//End for
}//End if
}//End if
}//End
}//End while
}//End if
//get the writer to the client
prResp = resp.getWriter();
System.out.println("ProxyServer:::>writeResponse-->proxyAuthReqd="+proxyAuthReqd);
//juste test a simple header
System.out.println("Proxy-Authenticate = "+(resp.containsHeader("Proxy-Authenticate")));
//if the proxy asks you for authentication,pass on the same to the client
//from whom you have received the request.When this flag is true,the connection
//is closed by the remotehost adn hence any attempt to open in input steram
//results in an error ie IOException
if (!proxyAuthReqd)
//now get the content adn write it to the response too
brConn = new BufferedReader(new InputStreamReader(
targetConn.getInputStream()));
String tempStr = null;
while ((tempStr = brConn.readLine())!=null)
prResp.println(tempStr);
}//End while
//close the connections
brConn.close();
}//End if
else
prResp.println("Proxy Authentication needed...");
}//End
//close the streams
prResp.flush();
prResp.close();
}//End if
System.out.println("ProxyServer:::>writeResponse exiting\n");
}//End try
catch(Exception e)
throw new ServletException(e);
}//End
}//End
//method to post request to the internet
private void postRequest(URLConnection targetConn,HttpServletRequest req)
throws ServletException
//extract the header parameters and the body content from the incoming request
//and set them to the new connection
Enumeration reqHeaders = null;
//reads the incoming request's content
BufferedReader brReqRd = null;
PrintWriter prResWt = null;
//stores temp header names and values
String headerName = null;
String headerValue = null;
try
if( (targetConn != null) && (req != null) )
reqHeaders = req.getHeaderNames();
//extract a header adn set it to the new connection
while (reqHeaders.hasMoreElements())
headerName = (String)(reqHeaders.nextElement());
headerValue = req.getHeader(headerName);
targetConn.setRequestProperty(headerName,headerValue);
System.out.println("ProxyServer:::>headerValue::> headerName = "+headerName+" : headerValue="+headerValue);
}//End
System.out.println("ProxyServer:::>postRequest\n");
//establis the actual connection
//calling this method bfore the above loop results in IllegalStateException
targetConn.connect();
//NOTE : try reading from and writing into OIS and OOS respectively
//now read the contents and write them to the connection
// brReqRd = req.getReader(); //this hangs for some reason
brReqRd = new BufferedReader(new InputStreamReader(req.getInputStream()));
System.out.println("Got the reader..brReqRd = "+brReqRd);
if (brReqRd != null)
String temp = null;
//establish the printwriter
// prResWt = new PrintWriter(targetConn.getOutputStream(),true);
prResWt = new PrintWriter(targetConn.getOutputStream());
System.out.println("trying to read in a loop from brReqRd.. ready="+(brReqRd.ready()));
while( (brReqRd.ready()) && ((temp=brReqRd.readLine()) != null) )
System.out.println("In while::>temp = "+temp);
prResWt.println(temp);
}//Emd while
//close the streams adn go back
brReqRd.close();
prResWt.flush();
prResWt.close();
}//End
}//End outer if
System.out.println("ProxyServer:::>postRequest exiting\n");
}//End try
catch(Exception e)
throw new ServletException(e);
}//End
}//End
}//EndHi serlank ,
Thanks for your reply. Well , I initially I thought of not pasting the code,as it was too long. But I could not help it,as I thought I must show in code what I exactly meant. That's why I followed a description of my problem with the code. You could probably have copied the code and pasted it in one of your favourite editors to take a look at it. Did you,by any chance, try to read it on the browser? And as regards reposting the same message, I can say that I did it as I felt the subject was not quite appropriate in the first posting and I was not sure as to how I could delete/alter the posting. I am not asking for a code-fix,but some suggestions from some one who might ever have come across such a thing.Anyway, lemme know if you have any idea on it. Thanks... -
I have problem with my zip files. all that i need is a simple zipping of files. here's is what i am doing
//this mehod takes 2 arugments, first argument is the file which is to be zipped and the second argument is the name of the zip file
public void makeZIP(File fileToZip, String zfileName) throws IOException{
try{
byte[] buff = new byte[BUF_SIZE];//BUF_SIZE =128
int cnt=0;
FileInputStream swcConvFis = new FileInputStream(fileToZip);
ZipEntry swcConvZipEntry = new ZipEntry(zfileName);
ZipOutputStream swcConvZipOutputStream = new ZipOutputStream(swcConvFos);
swcConvZipOutputStream.putNextEntry(swcConvZipEntry);
while((cnt = swcConvFis.read(buff,0,BUF_SIZE)) != -1){
swcConvZipOutputStream.write(buff,0,cnt);
swcConvFis.close();
swcConvZipOutputStream.closeEntry();
}catch(NullPointerException npe){npe.printStackTrace();}
whis code is a part of the servlet code that has to send the zipped file to the applet. What's happening is i am able to zip the files. but when i try to open the zip file it gives me a an error window saying " cannot open file: it does not appear to be valid archive."
ofcourse the file is zipped on a linux machine and i am trying to open it in windows...it think this shouldn't be a problem though!!
please somebody throw some light on this. i have searched the archives but not helpful sofar.
thanks
srithe outputToApplet is the ObjectOutputStream object.
at the applet's reading end this is what i am doing
ObjectInputStream intputFromServlet = new ObjectInputStream(connect.getInputStream());
//code to read the output files from the servlet
byte[] buff = new byte[BUF_SIZE];
int cnt = 0;
ArrayList getOutputFilesFromServlet = (ArrayList) inputFromServlet.readObject(); // at the servlet end i am writing outputToApplet.writeObject(send2Files), send2Files is an ArrayList object that has one .txt file and another .zip file
System.out.println("total no.of files "+getOutputFilesFromServlet.size()); //shows 2
Iterator getOutputFilesFromServletIterator = getOutputFilesFromServlet.iterator();
while(getOutputFilesFromServletIterator.hasNext()){
File file = (File)getOutputFilesFromServletIterator.next();
String fname = file.getName();
System.out.println("received "+fname);//shows correct file names
try{
File nfile = new File(getOfile.getParent()+System.getProperty("file.separator")+fname);//puts the files in the requested directory on the client machine
FileOutputStream toFile = new FileOutputStream(nfile);
//reading the files uploaded by the applet
while( (cnt = dump.read( buff )) > -1 ){
if(cnt<BUF_SIZE){
toFile.write( buff, 0, cnt );
toFile.close();
break;
toFile.write( buff, 0, cnt );
}catch(Exception e){e.printStackTrace();}
System.out.println("finished reading all files from the servlet....");
}//while(it.next)
not only the zip file even the other text file is not downloaded properly....(i.e) it shows some junk characters instead of the actual file context. so maybe there is mistake in the way that i am reading the files...but what i am doing at applet's end is just a mirror reflection of what i am doing at the servlet's end. you got me!! hope i am not confusing!
any suggestions!! -
Problem with URL File download
Hi every one i am facing a problem with URL File read Technique
import java.awt.Color;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.net.URL;
import java.net.URLConnection;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JProgressBar;
public class JarDownloader
boolean isSuccess = false;
public JarDownloader(String url)
downloadJar(url);
public boolean isDownloadingSuccess()
return isSuccess;
private File deleteExistingFile(String filename)
File jarf = new File(filename);
if(jarf.exists())
jarf.delete();
return jarf;
public static void main(String args[]){
new JarDownloader("url/filename.extension");
private void downloadJar(String url)
try
URL jarurl = new URL(url);
URLConnection urlc = jarurl.openConnection();
urlc.setUseCaches(false);
urlc.setDefaultUseCaches(false);
InputStream inst = urlc.getInputStream();
int totlength = urlc.getContentLength();
System.out.println("Total length "+totlength);
// If the size is less than 10 kb that means the linkis wrong
if(totlength<=10*1024)throw new Exception("Wrong Link");
JFrame jw =new JFrame("Livehelp-Download");
JPanel jp =new JPanel();
jp.setLayout(null);
JLabel jl = new JLabel("Downloading required file(s)...",JLabel.CENTER);
jl.setBounds(10,10,200,50);
jp.add(jl);
JProgressBar jpbar = new JProgressBar(0,totlength);
jpbar.setBorderPainted(true);
jpbar.setStringPainted(true);
jpbar.setBounds(10,70,200,30);
jpbar.setBackground(Color.BLUE);
jp.add(jpbar);
jw.setContentPane(jp);
jw.pack();
jw.setResizable(false);
jw.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
jw.setLocationRelativeTo(null);
jw.setSize(220,150);
jw.setVisible(true);
int readlngth=0;
int position=0;
byte[] readbytes = new byte[totlength];
while(totlength-position > 0)
readlngth = inst.read(readbytes,position,totlength-position);
position+=readlngth;
jpbar.setValue(position);
File jarf = deleteExistingFile(filename);
jarf.createNewFile();
//FileWriter fwriter=new FileWriter(jarf,true);
FileOutputStream fout = new FileOutputStream(jarf,true);
DataOutputStream dout = new DataOutputStream(fout);
dout.write(readbytes);
dout.flush();
dout.close();
inst.close();
jw.setVisible(false);
jw.dispose();
isSuccess=true;
}catch(Exception ex)
isSuccess=false;
}From the above code i received the total length of the PAGE content (i.e here url is a file) when i tried to find the size of that file it return -1.
please help meI think the real problem is that you don't check the return value from read (it's probably less than data.length indicating an incomplete read). Isn't there a readFully somewhere?
-
Problems with a thread that records dvd on suse linux
PLEASE HELP
I am using SuSE linux, and I record dvd+/- RW with the program growisofs.
By command line on the linux shell, growisofs records normally, but when I try to use the same line cone that I use in the shell in a java thread, it never stops recording, I mean, it records all data, but it apparently does not close the dvd session, for the grenn light on the drive never stops blinking, and I have to stop the proccess manually, because it never releases the dvd drive.
I use the thread in a large program, but for debugging this I have made a simple program, whose error is the same.
the code is:
String s = "/usr/local/bin/growisofs -speed=1 -M /dev/dvdram -V MIS27 -A growisofs -P MedImServer " +
" -p MedImServer -sysid Linux -J -R -l -relaxed-filenames -allow-lowercase -allow-multidot /windows/C/online";
Process p;
try {
p = Runtime.getRuntime().exec(s);
p.waitFor();
catch (IOException ex) {
JOptionPane.showMessageDialog(null,"erro no runtime");
System.exit(0);
catch (InterruptedException ex1) {
JOptionPane.showMessageDialog(null,"erro no waitfor");
System.exit(0);
}with JBuilder 9 debug, I realized that it freezes at the moment of "p.waitFor()".
I thought that it was a problem with the recording software, but it is not: the same command line that I use in the program I have used in the Linux shell and it recorded perfectly. The program does not require any user interaction but the command line I wrote before. The problem with the Java program is that it records all data, but never returns from the process. It's not a problem with the software, for it records perfectly when it's not called within the Java program, so I imagine that it is some funny thing in either the Runtime.getRuntime().exec(...) or the p.wait().
Better yet:
Is there a way to record dvds with a java command instead with an exteranal program?
This would be the heaven...
IF it is possible, do it require some sun package?
Thans
TiagoDid you mean like this?
Process p = null;
String s = null;
File f;
try {
f = new File(pathtmp);
f.mkdir();
if(VERBOSE) Log.info(GRAVA_LOG_MARK + "Pasta " + f.getPath() + " criada");
for (Iterator iter = estudos.iterator(); iter.hasNext(); ) {
HashMap item = (HashMap) iter.next();
String id = (String) item.get("id_paciente");
String dt_hr = (String) item.get("dt_hr_estudo");
String estudo = id + "." + dt_hr;
File dir = new File(distriOff.path);
String[] arquivos = dir.list(new FiltroInicio(estudo));
for (int i = 0; i < arquivos.length; i++) {
File src = new File(distriOff.path + arquivos);
File dest = new File(pathtmp + arquivos[i]);
try {
Util.copy(src, dest);
catch (Throwable ex) {
Log.error(mensagem + " " + ex);
prop.enviaMsg(mensagem + " " + ex);
throw new ExcecaoDistribuicao(ExcecaoDistribuicao.ERRO, mensagem + " " + ex);
String os = System.getProperty("os.name");
String modo;
if(midia.getEspaco_disponivel_midia() == midia.getTamanho_midia()) {
//primeira gravagco
modo = "-Z";
else {
//gravagco de novas segues
modo = "-M";
String speed = "-speed=1";
String cmd = "/usr/local/bin/growisofs " + speed + " " + modo + " " + dvdDevice + " "
+" -V " + prop.getIdMidiaAtual() + " -A growisofs -P MedImServer "
+"-p MedImServer -sysid " + os + " -J -R -l -relaxed-filenames -allow-lowercase -allow-multidot " + pathtmp;
p = Runtime.getRuntime().exec(cmd);
p.waitFor();
catch (IOException ex){
Log.error(mensagem + " " + ex);
prop.enviaMsg(mensagem + " " + ex);
throw new ExcecaoDistribuicao(ExcecaoDistribuicao.ERRO, mensagem + " " + ex);
catch (InterruptedException ex) {
Log.error(mensagem + " " + ex);
prop.enviaMsg(mensagem + " " + ex);
throw new ExcecaoDistribuicao(ExcecaoDistribuicao.ERRO, mensagem + " " + ex);
try
BufferedReader stdInput = new BufferedReader(new InputStreamReader(p.getInputStream()));
// Lj saida padrco do comando
while ( (s = stdInput.readLine()) != null)
Log.info(GRAVA_LOG_MARK + s);
catch (IOException ex)
Log.error(mensagem + " " + ex);
prop.enviaMsg(mensagem + " " + ex);
throw new ExcecaoDistribuicao(ExcecaoDistribuicao.ERRO, mensagem + " " + ex);
try
BufferedReader stdErr = new BufferedReader(new InputStreamReader(p.getErrorStream()));
// Lj qualquer erro do comando
while ( (s = stdErr.readLine()) != null) {
Log.info("Processo de Gravagco: " + s);
if((s.indexOf("failed") != -1) || (s.indexOf("error") != -1) || (s.indexOf("unable") != -1)) {
Log.error(mensagem + " " + s);
prop.enviaMsg(mensagem + " " + s);
throw new ExcecaoDistribuicao(ExcecaoDistribuicao.ERRO, mensagem + " " + s);
catch (IOException ex)
Log.error(mensagem + " " + ex);
prop.enviaMsg(mensagem + " " + ex);
throw new ExcecaoDistribuicao(ExcecaoDistribuicao.ERRO, mensagem + " " + ex);
I tried to execute it, and it indeed doesn't freeze, but it doesn't record a thing either...
now it doesn't even wait for the thread, which is VERY weird: it does not record a thing!!! It just passes by the line 'p.waitFor()'...
Any sugestion?
By the way, thanks for helping me...
Tiago -
Problem with the socket and the standard output stream
Hy, I have a little problem with a socket program. It has the server and the client. The problem is that the client at one point in the program, cannot print messages in the console.
My program does the next: the server waits connections, when a client connects to it, the server gets outputstream to the socket and writes two strings on it. Meanwhile, the client gets the inputstream to the socket and reads on it with a loop the two strings written by the server . The strings are printed by the client in the console. The problem starts here; once the read strings are printed ,I mean, after the loop, there are other System.out.println in the client but the console doesnt print anything . It curious that only when I comment on the server code the line that says: "br.readLine()" just before the catch, the client prints all the System.out.println after the loop but why?
Here is the code:
Server code:
public class MyServerSocket {
public MyServerSocket() {
try{
ServerSocket server= new ServerSocket(2000);
System.out.println("servidor iniciado");
Socket client=server.accept();
System.out.println("Client connected");
OutputStream os=client.getOutputStream();
PrintWriter pw= new PrintWriter(os);
String cadena1="cadena1";
String cadena2="cadena2";
pw.println(cadena1);
pw.println(cadena2);
pw.flush();
InputStream is=client.getInputStream();
InputStreamReader isr= new InputStreamReader(is);
BufferedReader br= new BufferedReader(isr);
br.readLine(); //If a comment this line, the client prints after the loop, all the System.out....
catch (IOException e) {
// TODO: handle exception
public static void main(String[] args) {
new MyServerSocket
Client code:
public class MyClientSocket {
public MyClientSocket () {
try{
Socket client= new Socket("localhost",2000);
InputStream is=client.getInputStream();
InputStreamReader isr= new InputStreamReader(is);
BufferedReader br= new BufferedReader(isr);
String read;
while((read=br.readLine())!=null){
System.out.println(read);
//These messages are not printed unless I comment the line I talked about in the server code
System.out.println("leido");
System.out.println("hola");
}catch (IOException e) {
public static void main(String[] args) {
new MyClientSocket
}You are right but with this program the loop ends. As you see, the first class, the Server, writes to the socket one text file. The second class, the client, reads the text file in his socket written by the server and writes it to a file in his machine.
NOTE: The loop in the client ends and the server doesnt make any close() socket or shutdownOutput() .
public class ServidorSocketFicheromio {
public ServidorSocketFicheromio() {
try{
ServerSocket servidor= new ServerSocket(2000);
System.out.println("servidor iniciado");
Socket cliente=servidor.accept();
System.out.println("cliente conectado");
OutputStream os=cliente.getOutputStream();
PrintWriter pw= new PrintWriter(os);
File f = new File("c:\\curso java\\DUDAS.TXT");
FileReader fr= new FileReader(f);
BufferedReader br= new BufferedReader(fr);
String leido;
while((leido=br.readLine())!=null){
pw.println(leido);
pw.flush();
}catch (IOException e) {
* @param args
public static void main(String[] args) {
new ServidorSocketFicheromio();
public class ClienteSocketFicheromio {
public ClienteSocketFicheromio() {
try{
Socket cliente= new Socket("localhost",2000);
File f = new File("G:\\pepe.txt");
FileWriter fw= new FileWriter(f);
PrintWriter pw= new PrintWriter(fw);
InputStream is=cliente.getInputStream();
InputStreamReader isr= new InputStreamReader(is);
BufferedReader br= new BufferedReader(isr);
String leido;
while((leido=br.readLine())!=null){
pw.println(leido);
System.out.println(leido);
System.out.println("leido");
System.out.println("hola");
pw.flush();
}catch (IOException e) {
public static void main(String[] args) {
new ClienteSocketFicheromio();/
} -
Problem with output string to command
hey i have no idea why this aint working
its a simple output string to command.
what it is supposed to do is make a new directory given by the input string
e.g. mkdir /home/luke/dep
thanks for the help
//methods input save files
saveFile = JOptionPane.showInputDialog("Save Files To : ");
//method command for saving files
//Stream to write file
FileOutputStream fout;
try { Process myProcess = Runtime.getRuntime().exec("mkdir" + saveFile );
InputStreamReader myIStreamReader = new InputStreamReader(myProcess.getInputStream());
fout = new FileOutputStream ("file.txt");
while ((ch = myIStreamReader.read()) != -1) { new PrintStream(fout).print((char)ch); } }
catch (IOException anIOException) { System.out.println(anIOException); }What you fail to understand is that "aint working" and "Problem with output string to command" tells us absolutely squat about what your problem is. This is the same as saying to the doctor "I'm sick" and expecting him to cure you. As mentioned by Enceph you need to provide details. Do you get error messages? If so post the entire error and indicate the line of code it occurs on. Do you get incorrect output? Then post what output you get, what output you expect. The more effort you put into your question the more effort others will put in their replies. So until you can manage to execute a little common sense then the only responses you will get will be flames. Now is your tiny little brain able to comprehend that?
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