Axis 2 integration

[rkozura]

Hello,

I am trying to use axis2 in a RESTful web service.  The osgi bundle fails to deploy:

karaf@root> ERROR: Error starting proxy-1.0.0.jar (org.osgi.framework.BundleException: Unresolved constraint in bundle : Unable to resolve 187.0: missing requirement package; (&(package=javax.xml.namespace(version>=1.0.0)))

Here is the axis2 dependency in my pom file:

<dependency>

   <groupId>org.apache.axis2</groupId>

   <artifactId>org.apache.axis2.osgi</artifactId>

   <version>1.5.3</version>

   <type>bundle</type>

</dependency>

And here is the MANIFEST file for the OSGI bundle:

Manifest-Version: 1.0

Export-Package: uses:="org.apache.axis2,or

g.apache.axis2.databinding.types,org.apache.axis2.context,org.apache.

cxf.message,org.apache.cxf.interceptor,org.apache.cxf.phase,org.apach

e.commons.httpclient.methods,javax.ws.rs,org.apache.cxf.jaxrs.impl,or

g.apache.commons.httpclient,javax.ws.rs.core"

Built-By: rkozura

Tool: Bnd-0.0.357

Bundle-Name: Service

Created-By: Apache Maven Bundle Plugin

Require-Bundle: org.apache.cxf.bundle

Bundle-Vendor: The Apache Software Foundation

DynamicImport-Package: javax.ws.rs.*

Build-Jdk: 1.6.0_23

Bundle-Version: 1.0.0

Bnd-LastModified: 1296757373785

Bundle-ManifestVersion: 2

Bundle-Description: This pom provides project information that is comm

on to all ServiceMix branches.

Bundle-License: http://www.apache.org/licenses/LICENSE-2.0.txt

Bundle-SymbolicName: proxy

Bundle-DocURL: http://www.apache.org/

Import-Package: META-INF.cxf,META-INF.cxf.osgi,javax.net.ssl,javax.ws.rs;version="1.0",javax.ws.rs.core;version

="1.0",javax.wsdl,javax.xml.bind,javax.xml.bind.annotation,javax.xml.

namespace;version="1.0",javax.xml.stream;version="1.0",org.apache.axi

om.om,org.apache.axiom.om.impl.llom,org.apache.axiom.soap,org.apache.

axis2;version="1.5",org.apache.axis2.addressing;version="1.5",org.apa

che.axis2.client;version="1.5",org.apache.axis2.context;version="1.5"

,org.apache.axis2.databinding;version="1.5",org.apache.axis2.databind

ing.types;version="1.5",org.apache.axis2.databinding.utils;version="1

.5",org.apache.axis2.databinding.utils.reader;version="1.5",org.apach

e.axis2.databinding.utils.writer;version="1.5",org.apache.axis2.descr

iption;version="1.5",org.apache.axis2.transport;version="1.5",org.apa

che.commons.httpclient,org.apache.commons.httpclient.methods,org.apac

he.commons.httpclient.params,org.apache.commons.httpclient.protocol,o

rg.apache.cxf.binding,org.apache.cxf.bus,org.apache.cxf.bus.resource,

org.apache.cxf.bus.spring,org.apache.cxf.configuration.spring,org.apa

che.cxf.interceptor,org.apache.cxf.jaxrs.impl,org.apache.cxf.jaxrs.ut

ils,org.apache.cxf.message,org.apache.cxf.phase,org.apache.cxf.resour

ce,org.apache.cxf.transport.http_osgi

If I change the javax.xml.naming version to 0.0.0, there is an unresolved exception with org.apache.axis2 now.

Anyone have any idea why this is happening?  Anyone use Axis2 with the FUSE ESB?

Has anyone used Axis2 in OSGI bundles who can help me out?

[gertv]

L.S.,

Not sure where/how you got that Axis OSGi bundle, but if I install that bundle, it does not have the javax.xml.namespace version (it says javax.xml.namespace;version=0.0.0 instead) and does not have all the CXF imports either.

And now that we're talking about CXF: What use case do you have for Axis2 that CXF wouldn't solve?  We pre-integrated CXF to help you solve all WS-* and RESTful services problem, so we'd definitely be interested to learn about the scenarios we need to add support for.

Regards,

Gert

[rkozura]

I may be a bit confused.  Here is what I am trying to do in a nutshell:

- Create a RESTful web service that does some tedious operation

- Intercept that RESTful request

- Once intercepted, use SOAP to connect to a web service

- Depending on the SOAP response, continue with the message path or not

I took your advice and went away from Axis2.  Axis 2 was used to create java code from a WSDL.

I am now using cxf's wsdl2java plugin to great effect, but something is wrong...I can't seem to use the SOAP client within a RESTful code block.

Here is what I have been using for a reference of sorts:

http://logicsector.wordpress.com/2008/10/19/how-to-create-a-wsdl-first-soap-client-in-java-with-cxf-and-maven/

Any advice would be greatly appreciated.

[gertv]

L.S.,

Those all look like good use cases for CXF to me, so at least that's a good start.

Have you tried invoking the webservice client from a simple Java program or a unit test to see if the generated client works for you there?  What's the exception you're seeing when you try to use the client from within you RESTful service code?

Regards,

Gert

Edited by: gertv on Feb 8, 2011 2:06 PM

[rkozura]

Thank you so much for helping me.  I am able to run the standalone client created by the wsdl2java plugin.  Here is what I have constructed so far to make the client work inside a RESTful web service:

- I created an InInterceptor in the beans.xml configuration file.  This allows me to intercept the message before reaching the RESTful endpoint.

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"

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

*     xmlns:jaxrs="http://cxf.apache.org/jaxrs"*

*     xmlns:cxf="http://cxf.apache.org/core"*

    xmlns:osgi="http://www.springframework.org/schema/osgi"

*     xsi:schemaLocation="*

http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd

http://cxf.apache.org/jaxrs http://cxf.apache.org/schemas/jaxrs.xsd

http://www.springframework.org/schema/osgi http://www.springframework.org/schema/osgi/spring-osgi.xsd

http://camel.apache.org/schema/spring http://camel.apache.org/schema/spring/camel-spring.xsd

http://cxf.apache.org/core http://cxf.apache.org/schemas/core.xsd">

    <import resource="classpath:META-INF/cxf/cxf.xml" />

    <import resource="classpath:META-INF/cxf/cxf-extension-jaxrs-binding.xml" />

    <import resource="classpath:META-INF/cxf/cxf-extension-http.xml" />

    <import resource="classpath:META-INF/cxf/osgi/cxf-extension-osgi.xml" />

*     *

*     *

    <jaxrs:server id="Apps" address="/" >

        <jaxrs:serviceBeans>

            <ref bean="proxyWebService"/>

        </jaxrs:serviceBeans>

    </jaxrs:server>

    <bean id="interceptor" class="com.company.Interceptor"/>

*     *

    <bean id="proxyWebService" class="com.company.Proxy"/>

</beans>

- When I deployed the OSGI bundle on the ESB, I was getting an exception like: org.apache.cxf.BusException: No binding factory for namespace http://schemas.xmlsoap.org/soap/ registered.  In order to fix this, I had to add <import resource="classpath:META-INF/cxf/cxf-extension-soap.xml" />

- Something to note, when I followed the steps per http://logicsector.wordpress.com/2008/10/19/how-to-create-a-wsdl-first-soap-client-in-java-with-cxf-and-maven/ to fix the problem, the REST web service would deploy, but will it would not be visible on the ESB for some reason, maybe because the OSGi container could not decide what type of service it was.  I had to only add the cxf-extension-soap.xml import statement and not the others.

- Another problem I had was after the code ran the SOAP client, the InInterceptor was catching the request or response for some reason, resulting in an infinite loop.  To fix this issue, I tried to find a discrepancy in the true REST message and the SOAP client message.  The difference was the Message.PATH_INFO being null for the SOAP client message.  So I simply added an if statement to check for it.

I wish there was a more elegant way to handle this...

Edited by: rkozura on Feb 8, 2011 6:43 PM

Edited by: rkozura on Feb 8, 2011 8:12 PM

[njiang]

Hi,

You can set up the interceptor per endpoint instead of bus. In this way your CXF client will not be affected by the custom interceptor.

Willem

[rkozura]

Thanks!  Works like a charm!

[sracem_s-racem]

Hi,

i tried invoking the webservice client from a simple Java program and it works but when i tried to use the client from within you RESTful service code i receive the following exception

20:20:36,744 | ERROR | ead #2 - myTimer | DefaultErrorHandler              | ?                                   ? | 89 - org.apache.camel.camel-core - 2.8.0.fuse-05-03 | Failed delivery for exchangeId: ID-PaymentServer-33385-1339183083120-1-15. Exhausted after delivery attempt: 1 caught: org.apache.camel.CamelExecutionException: Exception occurred during execution on the exchange: Exchange[Message: ]

org.apache.camel.CamelExecutionException: Exception occurred during execution on the exchange: Exchange[Message: ]

        at org.apache.camel.util.ObjectHelper.wrapCamelExecutionException(ObjectHelper.java:1173)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        at org.apache.camel.impl.DefaultExchange.setException(DefaultExchange.java:287)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        at org.apache.camel.component.bean.BeanProcessor.process(BeanProcessor.java:182)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:78)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:98)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:89)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:69)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:78)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:98)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:89)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        at org.apache.camel.processor.interceptor.TraceInterceptor.process(TraceInterceptor.java:99)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:78)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:98)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:89)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        at org.apache.camel.fabric.FabricTraceProcessor.process(FabricTraceProcessor.java:81)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:78)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        at org.apache.camel.processor.RedeliveryErrorHandler.processErrorHandler(RedeliveryErrorHandler.java:319)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:210)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        at org.apache.camel.processor.RouteContextProcessor.processNext(RouteContextProcessor.java:45)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:89)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        at org.apache.camel.processor.DefaultChannel.process(DefaultChannel.java:304)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:78)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        at org.apache.camel.processor.Pipeline.process(Pipeline.java:116)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        at org.apache.camel.processor.Pipeline.process(Pipeline.java:79)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        at org.apache.camel.processor.RouteContextProcessor.processNext(RouteContextProcessor.java:45)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:89)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        at org.apache.camel.processor.UnitOfWorkProcessor.processAsync(UnitOfWorkProcessor.java:150)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        at org.apache.camel.processor.UnitOfWorkProcessor.process(UnitOfWorkProcessor.java:117)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:78)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:98)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:89)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:69)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:104)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:85)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        at org.apache.camel.component.timer.TimerConsumer.sendTimerExchange(TimerConsumer.java:134)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        at org.apache.camel.component.timer.TimerConsumer$1.run(TimerConsumer.java:63)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        at java.util.TimerThread.mainLoop(Timer.java:512)[:1.6.0_31]

        at java.util.TimerThread.run(Timer.java:462)[:1.6.0_31]

Caused by: javax.xml.ws.spi.FactoryFinder$ConfigurationError: Provider org.apache.cxf.jaxws.spi.ProviderImpl not found

        at javax.xml.ws.spi.FactoryFinder$2.run(FactoryFinder.java:130)

        at javax.xml.ws.spi.FactoryFinder.doPrivileged(FactoryFinder.java:220)

        at javax.xml.ws.spi.FactoryFinder.newInstance(FactoryFinder.java:124)

        at javax.xml.ws.spi.FactoryFinder.access$200(FactoryFinder.java:44)

        at javax.xml.ws.spi.FactoryFinder$3.run(FactoryFinder.java:211)

        at javax.xml.ws.spi.FactoryFinder.doPrivileged(FactoryFinder.java:220)

        at javax.xml.ws.spi.FactoryFinder.find(FactoryFinder.java:160)

        at javax.xml.ws.spi.Provider.provider(Provider.java:43)

        at javax.xml.ws.Service.(VersionService.java:52)[43:camel-bundle:0.0.1]

        at com.ingenico.esb.camel.bundle.MyTransform.transform(MyTransform.java:25)[43:camel-bundle:0.0.1]

        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)[:1.6.0_31]

        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)[:1.6.0_31]

        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)[:1.6.0_31]

        at java.lang.reflect.Method.invoke(Method.java:597)[:1.6.0_31]

        at org.apache.camel.component.bean.MethodInfo.invoke(MethodInfo.java:329)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        at org.apache.camel.component.bean.MethodInfo$1.proceed(MethodInfo.java:231)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        at org.apache.camel.component.bean.BeanProcessor.process(BeanProcessor.java:171)[89:org.apache.camel.camel-core:2.8.0.fuse-05-03]

        ... 35 more

can you help me?

[sracem_s-racem]

bellow my spring configuration maybe i have error in this configuration !!

    <property name="prefix" value="$"/>

  </bean>

[gertv]

L.S.,

It rather looks like your problem is in the client code invoking the REST endpoint instead of in the XML for the routes.  Could you attach the code you have in your transform bean?  Also, could you do an osgi:headers  for this bundle/xml file as well and provide us with that output?

Thanks,

Gert Vanthienen

[ffang]

Hi,

First of all, I don't think your question here is related to this thread "Axis 2 integration", so you should create a new thread to ask your question if your question is about use CXF in FUSE ESB but has nothing to do with Axis, this is for a better track, and easily for other guys for search similar issues.

Back to the exception you encounter, seems your customer bundle didn't import necessary cxf related packages. If you're new with FUSE ESB/CXF, the cxf-osgi example should be a good start for you.

Freeman