Problem using XPATH with camel

[rkozura]

Hello all!  I am having problems using xpath.  Here is my camel route:

I am getting the following error in the log file:

09:24:16,247 | WARN  | 9@qtp-32833315-1 | PhaseInterceptorChain            | ache.cxf.common.logging.LogUtils  365 | Interceptor for RouterService#invoke has thrown exception, unwinding now

org.apache.cxf.interceptor.Fault: org.apache.cxf.message.MessageContentsList

[davsclaus]

Use google to find hits about that exception.

And maybe try adding  in the route to convert to String so the data can be read multiple times. I bet CXF may use streams.

You can also enable stream caching

http://camel.apache.org/stream-caching

[njiang]

Ah, org.apache.cxf.message.MessageContentsList.

You are using the POJO dataformat of camel-cxf endpoint, please try to use Message dataformat and cache the inputstream.

[rkozura]

Thank you for the help!  I enabled streamCaching on my route.  My cxf endpoint is already in message mode:

@WebServiceProvider()

@ServiceMode(Mode.MESSAGE)

public class Router implements Provider, however the beans are not processed.

Here is a general bean I have:

public SOAPMessage processSOAP(Exchange exchange) {

         System.out.println("Got here."); //I GET HERE!

        ...

}

[njiang]

Did your bean processSOAP method print "Got here" ?

Can you show us the stack trace?

You are using the WebServiceProvider, so you can get the SOAPMessage from the exchange.getInMessage().getBody(SOAPMessage.class).

But if convert the message body into String, you can't use the upper code anymore.

Willem

[rkozura]

Sure:

org.apache.cxf.interceptor.Fault

     at org.apache.camel.component.cxf.CxfConsumer$1.invoke(CxfConsumer.java:101)

     at org.apache.cxf.interceptor.ServiceInvokerInterceptor$1.run(ServiceInvokerInterceptor.java:58)

     at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:417)

     at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:269)

     at java.util.concurrent.FutureTask.run(FutureTask.java:123)

     at org.apache.cxf.workqueue.SynchronousExecutor.execute(SynchronousExecutor.java:37)

     at org.apache.cxf.interceptor.ServiceInvokerInterceptor.handleMessage(ServiceInvokerInterceptor.java:106)

     at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:243)

     at org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:110)

     at org.apache.cxf.transport.http_osgi.OsgiDestination.doMessage(OsgiDestination.java:79)

     at org.apache.cxf.transport.http_osgi.OsgiServletController.invokeDestination(OsgiServletController.java:327)

     at org.apache.cxf.transport.http_osgi.OsgiServletController.invoke(OsgiServletController.java:151)

     at org.apache.cxf.transport.http_osgi.OsgiServlet.invoke(OsgiServlet.java:53)

     at org.apache.cxf.transport.http_osgi.SpringOsgiServlet.invoke(SpringOsgiServlet.java:48)

     at org.apache.cxf.transport.servlet.AbstractHTTPServlet.handleRequest(AbstractHTTPServlet.java:179)

     at org.apache.cxf.transport.servlet.AbstractHTTPServlet.doPost(AbstractHTTPServlet.java:103)

     at javax.servlet.http.HttpServlet.service(HttpServlet.java:713)

     at org.apache.cxf.transport.servlet.AbstractHTTPServlet.service(AbstractHTTPServlet.java:159)

     at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)

     at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:390)

     at org.ops4j.pax.web.service.jetty.internal.HttpServiceServletHandler.handle(HttpServiceServletHandler.java:64)

     at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)

     at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)

     at org.ops4j.pax.web.service.jetty.internal.HttpServiceContext.handle(HttpServiceContext.java:111)

     at org.ops4j.pax.web.service.jetty.internal.JettyServerHandlerCollection.handle(JettyServerHandlerCollection.java:64)

     at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)

     at org.mortbay.jetty.Server.handle(Server.java:326)

     at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)

     at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:938)

     at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:755)

     at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218)

     at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)

     at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)

     at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)

Caused by: java.lang.NullPointerException

     at org.apache.servicemix.examples.demo_soap.MyTransform.processSOAP(MyTransform.java:40)

     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

     at java.lang.reflect.Method.invoke(Method.java:592)

     at org.apache.camel.component.bean.MethodInfo.invoke(MethodInfo.java:214)

     at org.apache.camel.component.bean.MethodInfo$1.proceed(MethodInfo.java:133)

     at org.apache.camel.component.bean.BeanProcessor.process(BeanProcessor.java:137)

     at org.apache.camel.impl.ProcessorEndpoint.onExchange(ProcessorEndpoint.java:95)

     at org.apache.camel.impl.ProcessorEndpoint$1.process(ProcessorEndpoint.java:65)

     at org.apache.camel.processor.SendProcessor$1.doInProducer(SendProcessor.java:97)

     at org.apache.camel.processor.SendProcessor$1.doInProducer(SendProcessor.java:95)

     at org.apache.camel.impl.ProducerCache.doInProducer(ProducerCache.java:146)

     at org.apache.camel.processor.SendProcessor.doProcess(SendProcessor.java:94)

     at org.apache.camel.processor.SendProcessor.process(SendProcessor.java:82)

     at org.apache.camel.processor.DelegateProcessor.processNext(DelegateProcessor.java:53)

     at org.apache.camel.processor.DelegateProcessor.proceed(DelegateProcessor.java:82)

     at org.apache.camel.processor.interceptor.TraceInterceptor.process(TraceInterceptor.java:93)

     at org.apache.camel.processor.interceptor.StreamCachingInterceptor.process(StreamCachingInterceptor.java:52)

     at org.apache.camel.processor.RedeliveryErrorHandler.processExchange(RedeliveryErrorHandler.java:177)

     at org.apache.camel.processor.RedeliveryErrorHandler.processErrorHandler(RedeliveryErrorHandler.java:143)

     at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:88)

     at org.apache.camel.processor.DefaultErrorHandler.process(DefaultErrorHandler.java:49)

     at org.apache.camel.processor.DefaultChannel.process(DefaultChannel.java:228)

     at org.apache.camel.processor.DelegateProcessor.processNext(DelegateProcessor.java:53)

     at org.apache.camel.processor.ChoiceProcessor.process(ChoiceProcessor.java:51)

     at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:67)

     at org.apache.camel.processor.DelegateProcessor.processNext(DelegateProcessor.java:53)

     at org.apache.camel.processor.DelegateProcessor.proceed(DelegateProcessor.java:82)

     at org.apache.camel.processor.interceptor.TraceInterceptor.process(TraceInterceptor.java:93)

     at org.apache.camel.processor.interceptor.StreamCachingInterceptor.process(StreamCachingInterceptor.java:52)

     at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:67)

     at org.apache.camel.processor.RedeliveryErrorHandler.processExchange(RedeliveryErrorHandler.java:177)

     at org.apache.camel.processor.RedeliveryErrorHandler.processErrorHandler(RedeliveryErrorHandler.java:143)

     at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:88)

     at org.apache.camel.processor.DefaultErrorHandler.process(DefaultErrorHandler.java:49)

     at org.apache.camel.processor.DefaultChannel.process(DefaultChannel.java:228)

     at org.apache.camel.processor.Pipeline.process(Pipeline.java:74)

     at org.apache.camel.processor.UnitOfWorkProcessor.processNext(UnitOfWorkProcessor.java:66)

     at org.apache.camel.processor.DelegateProcessor.process(DelegateProcessor.java:48)

     at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:67)

     at org.apache.camel.component.cxf.CxfConsumer$1.invoke(CxfConsumer.java:91)

     ... 33 more

I do indeed get the message: "Got here"

There are two options I can think of to fix this:

1.  Convert the body back to the original format.  I have tried this and it does not work.

2.  Have the bean method accept a String and try and build a response from that.

[njiang]

It's a NPE from the MyTransoform.java.

Caused by: java.lang.NullPointerException
at org.apache.servicemix.examples.demo_soap.MyTransform.processSOAP(MyTransform.java:40)

I need to have a look at it.

Willem