users@grizzly.java.net

Grizzly+Comet question

From: Lillian Angel <langel_at_redhat.com>
Date: Tue, 2 Mar 2010 11:40:57 -0500

Hi,

I am told you are the person I should be contacting for help :)

I am creating a comet servlet for the Jboss Errai project. I am using Glassfish V2. I have enabled cometSupport in the domain.xml (the jmaki-comet demo works well!), but I keep running into the error below. I can't figure out why it is being thrown, as the thread invoking the methods all seem to be the same as well.

To reproduce, I have uploaded the war here: http://langel.fedorapeople.org/errai-samples-store-1.1-SNAPSHOT.war

I have modified org/jboss/errai/bus/server/servlet/GrizzlyCometServlet.java to print statements for every function it hits. Right now the code is pretty rough and most likely incorrect, but it is based on the grizzly+comet demo (http://docs.sun.com/app/docs/doc/820-4496/ggrgt?a=view) and should be working a bit better than it is now. See the error below.


If you have an insight, please share!

Thanks a lot!
Lillian


[#|2010-03-02T11:02:29.447-0500|INFO|sun-appserver2.1|javax.enterprise.system.stream.out|_ThreadID=21;_ThreadName=httpWorkerThread-8080-0;|
14 service !!!!!!!!!!!!!GET|#]
15
16 [#|2010-03-02T11:02:29.448-0500|INFO|sun-appserver2.1|javax.enterprise.system.stream.out|_ThreadID=21;_ThreadName=httpWorkerThread-8080-0;|
17 doGet !!!!!!!!!!!!|#]
18
19 [#|2010-03-02T11:02:29.448-0500|INFO|sun-appserver2.1|javax.enterprise.system.stream.out|_ThreadID=21;_ThreadName=httpWorkerThread-8080-0;| 20 attach !!!!!!!!!!!!|#]

21 22 [#|2010-03-02T11:02:29.448-0500|SEVERE|sun-appserver2.1|javax.enterprise.system.container.web|_ThreadID=21;_Thre
  adName=httpWorkerThread-8080-0;_RequestID=8e5691c7-2c78-4e1f-80c1-cee36fe1f247;|StandardWrapperValve[GrizzlyErraiServlet]: PWC1406: Servlet.service() for servlet GrizzlyErraiServlet threw exception
23 java.lang.IllegalStateException: Make sure you have enabled Comet or make sure the Thread invoking that method i
  s the same as the Servlet.service() Thread.
24 at com.sun.grizzly.comet.CometContext.<clinit>(CometContext.java:183)
25 at com.sun.grizzly.comet.CometEngine.register(CometEngine.java:285)
26 at com.sun.grizzly.comet.CometEngine.register(CometEngine.java:260)
27 at com.sun.grizzly.comet.CometEngine.register(CometEngine.java:245)
28 at org.jboss.errai.bus.server.servlet.GrizzlyCometServlet.init(GrizzlyCometServlet.java:44)
29 at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1100)
30 at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1023)
31 at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4969)