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From Tijs <t.rademak...@chello.nl>
Subject Re: XPath expression with namespace
Date Wed, 07 Nov 2007 12:55:24 GMT

Gert,

I tried the example with the 1.3 SNAPSHOT and that works!
Is it likely that there will be a 1.3 release soon?
It would also be great to see Camel 1.3 in ServiceMix!

Thanks,

Tijs


Gert Vanthienen wrote:
> 
> Tijs,
> 
> Not entirely sure about it, but looking at the code I guess this feature 
> will only be available with the upcoming 1.3 release of Apache Camel.  
> Could you give it a try with a 1.3 SNAPSHOT (available on 
> http://people.apache.org/repo/m2-snapshot-repository/org/apache/camel/apache-camel/1.3-SNAPSHOT/)?
> 
> Gert
> 
> Tijs wrote:
>> Hi,
>>
>> I am using Apache Camel 1.2.0 and I have the following XML configuration:
>>
>> <beans xmlns="http://www.springframework.org/schema/beans"
>>        xmlns:ins="http://insurance.com"
>>        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>>        xsi:schemaLocation="
>>        http://www.springframework.org/schema/beans
>> http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
>>        http://activemq.apache.org/camel/schema/spring
>> http://activemq.apache.org/camel/schema/spring/camel-spring.xsd">
>>
>>   <camelContext useJmx="true"
>> xmlns="http://activemq.apache.org/camel/schema/spring">
>>     <route>
>>       <from uri="file:inbox"/>
>>       <choice>
>>         <when>		    	  
>>           <xpath>//ins:insurance-type='Car'</xpath>		          
>>           <to uri="file:outboxCar"/>
>>         </when>
>>         <otherwise>
>>           <to uri="file:outboxTravel"/>
>>         </otherwise>
>>       </choice>
>>     </route>
>>   </camelContext>
>> </beans>
>>
>> I think this XML configuration is correct as it is the same as the XPath
>> explanation on the Camel website. I however get the following exception:
>>
>> 5-nov-2007 18:03:15 org.apache.camel.processor.Logger log
>> SEVERE: Invalid xpath: //ins:insurance-type='Car'. Reason:
>> javax.xml.xpath.XPath
>> ExpressionException
>> org.apache.camel.builder.xml.InvalidXPathExpression: Invalid xpath:
>> //ins:insura
>> nce-type='Car'. Reason: javax.xml.xpath.XPathExpressionException
>>         at
>> org.apache.camel.builder.xml.XPathBuilder.evaluateAs(XPathBuilder.jav
>> a:383)
>>         at
>> org.apache.camel.builder.xml.XPathBuilder.matches(XPathBuilder.java:9
>> 2)
>>         at
>> org.apache.camel.builder.xml.XPathBuilder.matches(XPathBuilder.java:5
>> 8)
>>         at
>> org.apache.camel.processor.ChoiceProcessor.process(ChoiceProcessor.ja
>> va:47)
>>         at
>> org.apache.camel.processor.DelegateProcessor.processNext(DelegateProc
>> essor.java:47)
>>         at
>> org.apache.camel.processor.DelegateProcessor.process(DelegateProcesso
>> r.java:42)
>>         at
>> org.apache.camel.management.InstrumentationProcessor.process(Instrume
>> ntationProcessor.java:33)
>>         at
>> org.apache.camel.impl.converter.AsyncProcessorTypeConverter$Processor
>> ToAsynProcessorBridge.process(AsyncProcessorTypeConverter.java:44)
>>         at
>> org.apache.camel.processor.DeadLetterChannel.process(DeadLetterChanne
>> l.java:136)
>>         at
>> org.apache.camel.processor.DeadLetterChannel.process(DeadLetterChanne
>> l.java:86)
>>         at
>> org.apache.camel.processor.UnitOfWorkProcessor.process(UnitOfWorkProc
>> essor.java:40)
>>         at
>> org.apache.camel.component.file.FileConsumer.pollFile(FileConsumer.ja
>> va:131)
>>         at
>> org.apache.camel.component.file.FileConsumer.pollFileOrDirectory(File
>> Consumer.java:68)
>>         at
>> org.apache.camel.component.file.FileConsumer.pollFileOrDirectory(File
>> Consumer.java:76)
>>         at
>> org.apache.camel.component.file.FileConsumer.poll(FileConsumer.java:4
>> 9)
>>         at
>> org.apache.camel.impl.ScheduledPollConsumer.run(ScheduledPollConsumer
>> .java:63)
>>         at
>> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:41
>> 7)
>>         at
>> java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java
>> :280)
>>         at
>> java.util.concurrent.FutureTask.runAndReset(FutureTask.java:135)
>>         at
>> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.
>> access$101(ScheduledThreadPoolExecutor.java:65)
>>         at
>> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.
>> runPeriodic(ScheduledThreadPoolExecutor.java:142)
>>         at
>> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.
>> run(ScheduledThreadPoolExecutor.java:166)
>>         at
>> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExec
>> utor.java:650)
>>         at
>> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor
>> .java:675)
>>         at java.lang.Thread.run(Thread.java:595)
>> Caused by: javax.xml.xpath.XPathExpressionException
>>         at
>> com.sun.org.apache.xpath.internal.jaxp.XPathImpl.compile(XPathImpl.ja
>> va:402)
>>         at
>> org.apache.camel.builder.xml.XPathBuilder.createXPathExpression(XPath
>> Builder.java:405)
>>         at
>> org.apache.camel.builder.xml.XPathBuilder.getExpression(XPathBuilder.
>> java:269)
>>         at
>> org.apache.camel.builder.xml.XPathBuilder.evaluateAs(XPathBuilder.jav
>> a:372)
>>         ... 24 more
>> Caused by: javax.xml.transform.TransformerException: Prefix must resolve
>> to
>> a na
>> mespace: ins
>>         at
>> com.sun.org.apache.xpath.internal.compiler.XPathParser.error(XPathPar
>> ser.java:602)
>>         at
>> com.sun.org.apache.xpath.internal.compiler.Lexer.mapNSTokens(Lexer.ja
>> va:638)
>>         at
>> com.sun.org.apache.xpath.internal.compiler.Lexer.tokenize(Lexer.java:
>> 265)
>>         at
>> com.sun.org.apache.xpath.internal.compiler.Lexer.tokenize(Lexer.java:
>> 96)
>>         at
>> com.sun.org.apache.xpath.internal.compiler.XPathParser.initXPath(XPat
>> hParser.java:108)
>>         at com.sun.org.apache.xpath.internal.XPath.<init>(XPath.java:162)
>>         at com.sun.org.apache.xpath.internal.XPath.<init>(XPath.java:198)
>>         at
>> com.sun.org.apache.xpath.internal.jaxp.XPathImpl.compile(XPathImpl.ja
>> va:394)
>>         ... 27 more
>>
>> Is this a bug or am I doing something wrong here?
>>
>> Thanks,
>>
>> Tijs
>>   
> 
> 
> 

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