Hello Jean-Francois,
Let me start by thanking you for all your good work on the Grizzly/comet front. Kudos!
I wrote a simple comet app based on the tutorial found at:
http://docs.sun.com/app/docs/doc/820-4496/ggrgt?a=view.
I get the following exception when a request is received by my servlet:
java.lang.IllegalStateException: Make sure you have enabled Comet or make sure the Thread invoking that method is the same a the request Thread.
at com.sun.grizzly.comet.CometContext.addCometHandler(CometContext.java:263)
at com.sun.grizzly.comet.CometContext.addCometHandler(CometContext.java:311)
....
I have already combed through your blogs. I have tried all the suggestions that I have come across. So far, i haven't had any success. I noticed a peculiar behavior with my glassfish instance; whether <property name="cometSupport" value="true"/> is added to domain.xml or not seems to make not a bit of a difference.
I have made sure to bounce the server every time i make a change to domain.xml to ensure that the changes will be recognized. I have tried several experiments with the "cometSupport" property added and removed from domain.xml. I ave tried similar experiments with <property name="proxiedProtocols" value="ws/tcp"/> I have even enabled the flag through the command line using "asadmin set server.http-service.http-listener.http-listener-1.property.cometSupport=true"
Relevant environment information:
Sun Java System Application Server 9.1 (build b58g-fcs) (GlassfishV2)
excerpt from domain.xml:
....
<http-listener acceptor-threads="1" address="0.0.0.0" blocking-enabled="false" default-virtual-server="server" enabled="true" family="inet" id="http-listener-1" port="8080" security-enabled="false" server-name="" xpowered-by="true">
<property name="proxiedProtocols" value="ws/tcp"/>
<property name="cometSupport" value="true"/>
</http-listener>
....
excerpt from app server output console:
....
WEB0302: Starting Sun-Java-System/Application-Server.
Enabling Grizzly ARP Comet support.
WEB0712: Starting Sun-Java-System/Application-Server HTTP/1.1 on 8080
....
excerpt from web.xml
...
<servlet>
<servlet-name>RefreshServlet</servlet-name>
<servlet-class>package.RefreshServlet</servlet-class>
<load-on-startup>0</load-on-startup>
</servlet>
...
The following bit of code registers the handler and is invoked only once, upon receipt of first request.
private void registerHandler(HttpServletResponse response)
throws IllegalStateException{
if (oneShot) {
RefreshHandler handler = new RefreshHandler();
handler.attach(response);
CometEngine engine = CometEngine.getEngine();
CometContext context = engine.getCometContext(contextPath);
try{
context.addCometHandler(handler);
oneShot = false;
}catch(IllegalStateException ex){
logger.error(ex.getMessage(), ex);
throw ex;
}
}
}
Two questions:
1) Any suggestions?
2) How can I positively tell that comet support is indeed enabled?