Re: How do I expose my BPEL component as a webservice?

Mike Edwards Wed, 07 May 2008 20:35:57 -0700

Dalys,

Can you post the contents of the following files, please:


- composite file
- BPEL process file
- WSDL file

The WSDL file is especially important here - it defines the interface that the BPEL process is usingand also any policies that may apply.

It appears as if there is a failure at the point where Tuscany processes your componentType file andfollows the <interface.wsdl..../> to the WSDL file. The error message is VERY unfriendly and wemust improve it, but it will be helpful to see what error is being caught.



Yours,  Mike.



Dalys Sebastian wrote:

Hi,

I was missing the axis2-ws binding in the WEB-INF/lib. I added those libs and 
verified
the dependencies with other working webapps and now the error has migrated to 
the
following:
Any idea what's going wrong? (I don't get any errors if I omit "<binding.ws/>" 
in the
componentType file.)

Caused by: java.lang.NullPointerException
        at
org.apache.tuscany.sca.assembly.xml.PolicyAttachPointProcessor.resolvePolicies(PolicyAttachPointProcessor.java:243)
        at
org.apache.tuscany.sca.binding.ws.xml.WebServiceBindingProcessor.resolve(WebServiceBindingProcessor.java:310)
        at
org.apache.tuscany.sca.binding.ws.xml.WebServiceBindingProcessor.resolve(WebServiceBindingProcessor.java:59)
        at
org.apache.tuscany.sca.contribution.processor.DefaultStAXArtifactProcessorExtensionPoint$LazyStAXArtifactProcessor.resolve(DefaultStAXArtifactProcess
orExtensionPoint.java:252)
        at
org.apache.tuscany.sca.contribution.processor.ExtensibleStAXArtifactProcessor.resolve(ExtensibleStAXArtifactProcessor.java:109)
        at
org.apache.tuscany.sca.assembly.xml.BaseAssemblyProcessor.resolveContracts(BaseAssemblyProcessor.java:362)
        at
org.apache.tuscany.sca.assembly.xml.BaseAssemblyProcessor.resolveContracts(BaseAssemblyProcessor.java:311)
        at
org.apache.tuscany.sca.assembly.xml.ComponentTypeProcessor.resolve(ComponentTypeProcessor.java:340)
        at
org.apache.tuscany.sca.assembly.xml.ComponentTypeProcessor.resolve(ComponentTypeProcessor.java:57)
        at
org.apache.tuscany.sca.contribution.processor.ExtensibleStAXArtifactProcessor.resolve(ExtensibleStAXArtifactProcessor.java:109)
        at
org.apache.tuscany.sca.assembly.xml.ComponentTypeDocumentProcessor.resolve(ComponentTypeDocumentProcessor.java:112)
        at
org.apache.tuscany.sca.assembly.xml.ComponentTypeDocumentProcessor.resolve(ComponentTypeDocumentProcessor.java:44)
        at
org.apache.tuscany.sca.contribution.processor.ExtensibleURLArtifactProcessor.resolve(ExtensibleURLArtifactProcessor.java:86)
        at
org.apache.tuscany.sca.contribution.service.impl.ContributionServiceImpl.processResolvePhase(ContributionServiceImpl.java:454)
        at
org.apache.tuscany.sca.contribution.service.impl.ContributionServiceImpl.addContribution(ContributionServiceImpl.java:348)

Thanks,
Dalys
--- Luciano Resende <[EMAIL PROTECTED]> wrote:

On Sun, May 4, 2008 at 10:37 PM, Dalys Sebastian
<[EMAIL PROTECTED]> wrote:

Hi everyone,

This may probably be a very basic question. But I had been trying for quite 
sometime

and

could not find an example on it, so I thought I will post it.

How do I expose my component (BPEL implementation) as a webservice URI? Do I 
modify

the

componentType file?

I tried modifying both the componentType and the composite file and introduced
"<binding.ws/>" in both, but it does not seem to pick it up.

For e.g., my componentType file looks like:
<componentType xmlns="http://www.osoa.org/xmlns/sca/1.0";
       xmlns:wsdli="http://www.w3.org/2006/01/wsdl-instance";
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
       xmlns:xsd="http://www.w3.org/2001/XMLSchema";>

 <service name="HelloService" promote="BPELHelloWorldComponent">
       <interface.wsdl

interface="http://tuscany.apache.org/implementation/bpel/example/helloworld.wsdl#wsdl.interface(HelloPortType)"

/>
       <binding.ws/>
 </service>

</componentType>

I have deployed it as a webapp on Tomcat. And during startup, Tuscany throws a

warning

like:
WARNING: Element {http://www.osoa.org/xmlns/sca/1.0}binding.ws cannot be 
processed.
([row,col,system-id]:

Looks like you are missing the axis-ws binding dependency jar in your
app. Could you please verify your dependencies ?

[27,9,"file:/C:/apache-tomcat-5.5.25/webapps/sample-helloworld-bpel/WEB-INF/classes/helloworld.componentType"])

What am I doing wrong?

Thanks,
Dalys

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--
Luciano Resende
Apache Tuscany Committer
http://people.apache.org/~lresende
http://lresende.blogspot.com/

Re: How do I expose my BPEL component as a webservice?

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