XPAth routing with default namespace via ESB Content-based r

[tds111]

I have a message that I am trying to route via a content -based router that I have setup within the JBoss ESB. I have tested with a message when not defining any namespacing. However, when including namespace within the message XML document, the XPATH evaluation fails. It appears that perhaps the problem is that this default namespace is not defined or registered in order for the DslHelper.xmlContentEquals method to properly evaluate it? At any rate, just trying to figure out how to get this XPath evaulation to work in this situation, with namespaces? Has anyone encountered this problem? Thanks much! Todd

[marklittle]

Check through the forum. I'm sure this has come up before.

[tobysaville]

i've had this issue:
http://www.jboss.com/index.html?module=bb&op=viewtopic&t=123539

there was no resolution, so i wrote my own using Jaxen. I can post the code if you want.

[kurtstam]

Hi Toby,

I think this is the same issue

http://jira.jboss.com/jira/browse/JBESB-1426

Check that and if it is then it'd be great if you can attach your code there.

Thx!

--Kurt

[tobysaville]

Hello,

i will check out that JIRA issue and post my code shortly if relevent.

in the meantime, i was wondering if it would be possible to use the local-name() function? it requires the fn: namespace to be defined in the XSL when used as a normal translation, so i dont know if it will work as part of CBR and i haven't had a chance to try it.

- toby

[viniciuscarvalho]

Hello toby. I have successfully changed the DSL Helper to support namespaces, and it was easy to do so. I've attached the code for the Namespacecontext only at the JIRA, but here's what I've done:

I've replaced the dsl file for the CBR:

#JBossESB Content Based Routing using XPath DSL
[when]xpathMatch "{xpath}"=msg : Message( type == MessageType.JBOSS_XML ) and eval( com.synos.csm.esb.routing.DslHelper.xmlContentMatches(msg, "{xpath}") )
[when]xpathEquals "{xpath}", "{value}"=msg : Message( type == MessageType.JBOSS_XML ) and eval( com.synos.csm.esb.routing.DslHelper.xmlContentEquals(msg, "{xpath}", "{value}") )
[when]xpathGreaterThan "{xpath}", "{value}"=msg : Message( type == MessageType.JBOSS_XML ) and eval( com.synos.csm.esb.routing.DslHelper.xmlContentGreaterThan(msg, "{xpath}", "{value}") )
[when]xpathLessThan "{xpath}", "{value}"=msg : Message( type == MessageType.JBOSS_XML ) and eval( com.synos.csm.esb.routing.DslHelper.xmlContentLessThan(msg, "{xpath}", "{value}") )
[then]Log : "{message}"=System.out.println("{message}");
[then]Destination : "{message}"=destinations.add("{message}");

Then, for each method on it, I've just modified the xpath related block:

CustomNamespaceContext cn = new CustomNamespaceContext();
cn.addNamespace("acme","http://www.acme.com.br/schemas");
XPath xpath = xpf.newXPath();
xpath.setNamespaceContext(cn);

And that was it :)

My suggestion was to have an way to access the configTree so one could set the namespaces on the config element of the CBR :)

Hope it helps

Regards

[tobysaville]

Hi viniciuscarvalho,

thats a good solution, thanks for the idea! can you add a link to your jira issue too?

- toby

[viniciuscarvalho]

Yep :)

http://jira.jboss.com/jira/browse/JBESB-1426