Little error on graniteds-reference-guide.pdf

[maven dev]

hello,

FYI there is a little error on this reference PDF (page 144 on the
table).

For GlassFish 3.x and Tomcat 7.x/Jetty 8.x package for servlet
gravity class is org.granite.gravity.async whereas the real package is
org.granite.gravity.servlet3.

I'm using 2.3 docs maybe this has changed from prior version.

cheers

Olivier

[maven dev]

but....

when I'm using org.granite.gravity.servlet3.GravityAsyncServlet with
GlassFish 3+ I receive a javax.servlet.ServletException :

[#|2011-12-05T12:06:28.859+0100|WARNING|glassfish3.1.1|
javax.enterprise.system.container.web.com.sun.enterprise.web|
_ThreadID=118;_ThreadName=Thread-2;|
StandardWrapperValve[GravityServlet]: PWC1406: Servlet.service() for
servlet GravityServlet threw exception
javax.servlet.ServletException: Asynchronous requests are not
supported with this servlet. Please check your web.xml
at
org.granite.gravity.servlet3.GravityAsyncServlet.doPost(GravityAsyncServlet.java:
57)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:754)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
at
org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:
1539)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:
281)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:
175)
at
org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:
655)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:
595)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:98)
at
com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:
91)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:
162)
at
org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:
330)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:
231)
at
com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:
174)
at
com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:
828)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:
725)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:
1019)
at
com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:
225)
at
com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:
137)
at
com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:
104)
at
com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:
90)
at
com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:
79)
at
com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:
54)
at
com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:
59)
at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
at com.sun.grizzly.util.AbstractThreadPool
$Worker.doWork(AbstractThreadPool.java:532)
at com.sun.grizzly.util.AbstractThreadPool
$Worker.run(AbstractThreadPool.java:513)
at java.lang.Thread.run(Thread.java:722)

using org.granite.gravity.generic.GravityGenericServlet solve this
problem.

Cannot use org.granite.gravity.servlet3.GravityAsyncServlet with
GlassFish ?

Thanks

Olivier

[William Draï]

You have to add <async-supported>true</async-supported> to your servlet descriptor in web.xml. And ensure that your web.xml has a header with version 3.0:

<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee"

    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">

[maven dev]

Very nice it works like a charm now !

Thanks a lot.

For my information, with
org.granite.gravity.generic.GravityGenericServlet it's mentioned
that's there is no asynchronous
support for this class. What does it mean exactly ?

Does it mean that :

- it's impossible for a not connected consumer to receive a producer
message in a future connection ?
- sending a message will block in any way consumers...?
- what else...?

Thanks for clarification

Olivier