Incidentally...after all of that...I still can't seem to get the content
sent across container boundaries. In summary, here's what I did:
1. Placed the 2.0 SNAPSHOT and those other 3 JARs in my classpath.
2. Moved up to Java 5 to avoid the invalid class version error when
compiling
3. Started up the services container.
4. Rolled my own XmlWebApplicationContext that instantiates itself with
the XBeanProcessor.
5. Deployed the web client.
From all indications, the content that I'm setting on the client side
of the exchange never makes it to the service-side. Properties make the
trip, but the content does not.
Any clues?
Craig Walls wrote:
Okay, I moved up to Java 1.5 and have the service-side of my example
working with the 2.0 SNAPSHOT. I'm loading the container myself in
Spring code that is similar to the code in org.servicemix.Main:
List processors = Arrays.asList(new Object[] { new XBeanProcessor()
});
new ClassPathXmlApplicationContext(
"com/habuma/pig/service/service-container.xml", processors);
But I run into a wrinkle with the client-side...You see, the client
side of my example is web-based. Previously (with version 1.1), I had
this in my web.xml file:
<servlet>
<servlet-name>pig</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
<init-param>
<param-name>contextClass</param-name>
<param-value>org.servicemix.jbi.config.XmlWebApplicationContext</param-value>
</init-param>
</servlet>
Now that I'm at 2.0, I figured that I should probably be using the
XBean version of XmlWebApplicationContext...not a problem...
<init-param>
<param-name>contextClass</param-name>
<param-value>org.xbean.spring.context.XmlWebApplicationContext</param-value>
</init-param>
But here's the problem...using "1.1 compatibility" I need to be able
to set an XBeanProcessor on XmlWebApplicationContext, similar to what
I did on the service side. Except that I don't instantiate
XmlWebApplicationContext. DispatcherServlet has that honor. Therefore,
there's no clear way to set the XBeanProcessor and so the
XmlWebApplicationContext doesn't know how to parse the
ServiceMix-specific context.
There are a few options:
* My client's container doesn't have any of its own components, so I
suppose that I could use standard Spring XML to configure the
container. But if I decide to add a service to that container then
things get ugly.
* I could go put the appropriate property file in META-INF and
declare an xmlns in my XML to handle the ServiceMix-specific
stuff. But in my opinion the fact that ServiceMix is using XBean
should be as transparent to me as possible. Having to tweak my XML
to explicitly say that I'm using ServiceMix tags via XBean seems
kinda dirty to me.
* Perhaps a custom ServiceMix-specific DispatcherServlet could be
written that handles the creation of XmlWebApplicationContext
appropriately.
* Or perhaps (and maybe even better), the ServiceMix version of
XmlWebApplicationContext could extend the XBean version and
properly register the XBeanProcessor. This means I'd have to
change web.xml back to use the old ServiceMix-specific
XmlWebApplicationContext...but that's okay with me.
What advice is there for me? Any ideas on how to deal with this? I
favor the last option...here's what I've got that seems to do the trick:
package org.servicemix.jbi.config;
import java.util.Arrays;
import org.servicemix.jbi.config.spring.XBeanProcessor;
public class XmlWebApplicationContext extends
org.xbean.spring.context.XmlWebApplicationContext {
public XmlWebApplicationContext() {
super(Arrays.asList(new Object[] { new XBeanProcessor() }));
}
}
Guillaume Nodet wrote:
Hi All !
A snapshot of ServiceMix 2.0 has been deployed at
http://dist.codehaus.org/servicemix/jars/servicemix-2.0-SNAPSHOT.jar
It includes a number of bug fixes, especially on cluster flow (for
Craig) and sendSync on pub/sub (for George).
To use it on a 1.x distribution, you will need to put the jar at the
place of the old one (do not forget to remove the old one from the
classpath).
It works the same way, and you can access the compatibility mode in
the following way :
..\..\bin\servicemix -v1 servicemix.xml
You will certainly encouter a number of ClassNotFoundException. You
will need to add the following jars to the classpath:
http://dist.codehaus.org/xbean/jars/xbean-spring-2.0-SNAPSHOT.jar
http://www.ibiblio.org/maven/springframework/jars/spring-1.2.5.jar
http://www.ibiblio.org/maven/backport-util-concurrent/jars/backport-util-concurrent-2.0_01_pd.jar
Do not forget to remove the old spring jar from the classpath too.
Enjoy !
Cheers,
Guillaume Nodet
