[Fuse 4.3.0] Camel xPath expression : ClassCastException

[stephane_stephane.pain]

Hi,

   In my camel-context.xml file, I have a route with :

The problem is when my http consumer send the message to this route, I have the exception :

java.lang.ClassCastException: javax.xml.transform.stream.StreamSource cannot be cast to org.w3c.dom.Node

     at com.sun.org.apache.xpath.internal.jaxp.XPathExpressionImpl.eval(XPathExpressionImpl.java:116)[:1.6.0_07]

     at com.sun.org.apache.xpath.internal.jaxp.XPathExpressionImpl.eval(XPathExpressionImpl.java:98)[:1.6.0_07]

     at com.sun.org.apache.xpath.internal.jaxp.XPathExpressionImpl.evaluate(XPathExpressionImpl.java:180)[:1.6.0_07]

     at org.apache.camel.builder.xml.XPathBuilder.doInEvaluateAs(XPathBuilder.java:598)[68:org.apache.camel.camel-core:2.4.0.fuse-00-00]

     at org.apache.camel.builder.xml.XPathBuilder.evaluateAs(XPathBuilder.java:570)[68:org.apache.camel.camel-core:2.4.0.fuse-00-00]

     at org.apache.camel.builder.xml.XPathBuilder.matches(XPathBuilder.java:122)[68:org.apache.camel.camel-core:2.4.0.fuse-00-00]

     at org.apache.camel.processor.ChoiceProcessor.process(ChoiceProcessor.java:61)[68:org.apache.camel.camel-core:2.4.0.fuse-00-00]

     at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:70)[68:org.apache.camel.camel-core:2.4.0.fuse-00-00]

     at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:98)[68:org.apache.camel.camel-core:2.4.0.fuse-00-00]

     at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:89)[68:org.apache.camel.camel-core:2.4.0.fuse-00-00]

     at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:68)[68:org.apache.camel.camel-core:2.4.0.fuse-00-00]

     at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:70)[68:org.apache.camel.camel-core:2.4.0.fuse-00-00]

     at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:98)[68:org.apache.camel.camel-core:2.4.0.fuse-00-00]

     at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:89)[68:org.apache.camel.camel-core:2.4.0.fuse-00-00]

     at org.apache.camel.processor.interceptor.TraceInterceptor.process(TraceInterceptor.java:99)[68:org.apache.camel.camel-core:2.4.0.fuse-00-00]

     at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:70)[68:org.apache.camel.camel-core:2.4.0.fuse-00-00]

     at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:98)[68:org.apache.camel.camel-core:2.4.0.fuse-00-00]

     at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:89)[68:org.apache.camel.camel-core:2.4.0.fuse-00-00]

     at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:68)[68:org.apache.camel.camel-core:2.4.0.fuse-00-00]

     at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:70)[68:org.apache.camel.camel-core:2.4.0.fuse-00-00]

     at org.apache.camel.processor.RedeliveryErrorHandler.processErrorHandler(RedeliveryErrorHandler.java:290)[68:org.apache.camel.camel-core:2.4.0.fuse-00-00]

     at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:202)[68:org.apache.camel.camel-core:2.4.0.fuse-00-00]

     at org.apache.camel.processor.DefaultChannel.process(DefaultChannel.java:256)[68:org.apache.camel.camel-core:2.4.0.fuse-00-00]

     at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:70)[68:org.apache.camel.camel-core:2.4.0.fuse-00-00]

     at org.apache.camel.processor.Pipeline.process(Pipeline.java:143)[68:org.apache.camel.camel-core:2.4.0.fuse-00-00]

     at org.apache.camel.processor.Pipeline.process(Pipeline.java:78)[68:org.apache.camel.camel-core:2.4.0.fuse-00-00]

     at org.apache.camel.processor.UnitOfWorkProcessor.process(UnitOfWorkProcessor.java:99)[68:org.apache.camel.camel-core:2.4.0.fuse-00-00]

     at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:70)[68:org.apache.camel.camel-core:2.4.0.fuse-00-00]

     at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:98)[68:org.apache.camel.camel-core:2.4.0.fuse-00-00]

     at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:89)[68:org.apache.camel.camel-core:2.4.0.fuse-00-00]

     at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:68)[68:org.apache.camel.camel-core:2.4.0.fuse-00-00]

     at org.apache.servicemix.camel.CamelProviderEndpoint$1.call(CamelProviderEndpoint.java:109)[142:servicemix-camel:2010.02.0.fuse-00-00]

     at org.apache.servicemix.camel.JbiBinding.runWithCamelContextClassLoader(JbiBinding.java:116)[142:servicemix-camel:2010.02.0.fuse-00-00]

     at org.apache.servicemix.camel.CamelProviderEndpoint.handleActiveProviderExchange(CamelProviderEndpoint.java:107)[142:servicemix-camel:2010.02.0.fuse-00-00]

     at org.apache.servicemix.camel.CamelProviderEndpoint.process(CamelProviderEndpoint.java:85)[142:servicemix-camel:2010.02.0.fuse-00-00]

     at org.apache.servicemix.common.AsyncBaseLifeCycle.doProcess(AsyncBaseLifeCycle.java:617)[90:servicemix-common:2010.02.0.fuse-00-00]

     at org.apache.servicemix.common.AsyncBaseLifeCycle.processExchange(AsyncBaseLifeCycle.java:571)[90:servicemix-common:2010.02.0.fuse-00-00]

     at org.apache.servicemix.common.AsyncBaseLifeCycle.processExchangeInTx(AsyncBaseLifeCycle.java:468)[90:servicemix-common:2010.02.0.fuse-00-00]

     at org.apache.servicemix.common.AsyncBaseLifeCycle$2.run(AsyncBaseLifeCycle.java:347)[90:servicemix-common:2010.02.0.fuse-00-00]

     at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)[:1.6.0_07]

     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)[:1.6.0_07]

     at java.lang.Thread.run(Thread.java:619)[:1.6.0_07]

Could you help me ?

Thank you

[davsclaus]

Add

which tells Camel to convert the message to a String which the XPath can work with.

Alternative you may have to enable stream caching.

Also pay attention if you messages is streams you may want to enable stream caching

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

[stephane_stephane.pain]

I'm not sure to understand.

In my case :

1- my application sends an in-message 'I_1' to the http consumer

2- the http consumer sends the in-message 'I_1' to the camel router

3- camel router sends the in-message 'I_1'  to my custom bean

4- my custom bean writes an out-message 'O_1' as a response to camel router

5- camel router receives the response from my custom bean with in-message 'I_1' and out-message 'O_1'

6- camel router sends a response to the http consumer with in-message 'I_1' and out-message 'I_1' (and not with out-message 'O_1' ???)

7- the http consumer receives and sends to my application a response with in-message 'I_1'  and out-message 'I_1'

You tell me that this is the normal way ?

So, in this case, how can I get my out-message 'O_1' in my application

Thank you

[stephane_stephane.pain]

Sorry for the last post, wrong thread.

Thank you for your answer, it works