Could anybody make it detailed about the ChatServer sample? I even don't know how to run it! Thank you!
2007/6/22, Reich, Matthias <[EMAIL PROTECTED]>:
There have been a lot of things fixed and enhanced in the Comet area since version 6.0.10. You should better try with version 6.0.13. Regards, Matthias > -----Original Message----- > From: Ritesh Kumar [mailto:[EMAIL PROTECTED] > Sent: Thursday, June 21, 2007 11:43 AM > To: users@tomcat.apache.org > Subject: Comet example Tomcat 6 not working. > > > Hi, > > I am trying to run the comet sample given along with tomcat. > The sample is > not working correctly most of the time. I am using NIO > connectors and Tomcat > version is 6.0.10. > I have some doubts also: > > 1) In the ChatServer example, a thread (using a Runnable > MessageSender) is > sending responses the clients. Is it possible to write > multiple times to the > same response. Because when we do writer.flush() then that > response is sent > to the client. > > 2) The READ event is never invoked in my example. whenever I > send a request > only BEGIN event is getting called. I thought, for the first > time only BEGIN > event should get called, and for further requests by the same > client, READ > event should get called. > > 3) I am getting exception at the line where the thread which > is trying to > write to response stream is calling the flush method. > The code (from tomcat example) is: > > for (int i = 0; i < connections.size(); i++) { > try { > PrintWriter writer = > connections.get(i).getWriter(); > String toBeFlushed = ""; > for (int j = 0; j < > pendingMessages.length; j++) > { > // FIXME: Add HTML filtering > writer.println(pendingMessages[j] + > "<br/>"); > } > writer.println("Random message 1" > + "<br/>"); > writer.println("Random message 2" > + "<br/>"); > System.out.println("writer will flush now. > writer is null?=" + writer == null); > writer.flush(); > } catch (IOException e) { > log("IOExeption sending message", e); > } > } > > And the error message I am getting is: > > Exception in thread "MessageSender[/CometTestApp]" > java.lang.NullPointerException > at > org.apache.coyote.http11.InternalNioOutputBuffer.addToBB(Inter > nalNioOutputBuffer.java:607) > at > org.apache.coyote.http11.InternalNioOutputBuffer.commit(Intern > alNioOutputBuffer.java:600) > at > org.apache.coyote.http11.Http11NioProcessor.action(Http11NioPr > ocessor.java:1010) > at org.apache.coyote.Response.action(Response.java:183) > at org.apache.coyote.Response.sendHeaders(Response.java:379) > at > org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffe > r.java:305) > at > org.apache.catalina.connector.OutputBuffer.flush(OutputBuffer. > java:288) > at > org.apache.catalina.connector.CoyoteWriter.flush(CoyoteWriter.java:95) > at > com.headstrong.test.ChatServlet$MessageSender.run(ChatServlet. > java:276) > at java.lang.Thread.run(Thread.java:595) > > > -- > View this message in context: > http://www.nabble.com/Comet-example-Tomcat-6-not-working.-tf39 > 57585.html#a11229741 > Sent from the Tomcat - User mailing list archive at Nabble.com. > > > --------------------------------------------------------------------- > To start a new topic, e-mail: users@tomcat.apache.org > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > --------------------------------------------------------------------- To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
