Here is an test[1] in the camel-spring unit test is same for your case :)
The <xpath> $foo = 'bar' </xpath> is expression for checking the header
foo isequals to bar.
And this feature was added in Camel 1.3.0.
[1]https://svn.apache.org/repos/asf/activemq/camel/trunk/components/camel-spring/src/test/resources/org/apache/camel/spring/processor/choice.xml
Willem
Daniel Nebot wrote:
Hi,
I am very new to Camel and as soon as I have included a slightly more complex route I got a NullPointerException. I will be very grateful if somebody could have a look at the console output and point out any hints.
The route is:
<route>
<from uri="activemq:QUEUE_HL7LISC_OUT"/>
<choice>
<when>
<predicate>
<header name="msgAppFrom"/>
<isEqualTo value="APP1"/>
</predicate>
<to uri="activemq:QUEUE_ALLPLISC_IN"/>
</when>
<when>
<predicate>
<header name="msgAppFrom"/>
<isEqualTo value="APP2"/>
</predicate>
<to uri="activemq:example.A"/>
</when>
<otherwise>
<to uri="activemq:example.B"/>
</otherwise>
</choice>
</route>
The output is:
ACTIVEMQ_HOME: C:\Program Files\apache-activemq-5.1.0\bin\..
ACTIVEMQ_BASE: C:\Program Files\apache-activemq-5.1.0\bin\..
Loading message broker from: xbean:activemq.xml
INFO BrokerService - Using Persistence Adapter: AMQPersistence
Adapter(C:\Program Files\apache-activemq-5.1.0\bin\..\data)
INFO BrokerService - ActiveMQ 5.1.0 JMS Message Broker (localh
ost) is starting
INFO BrokerService - For help or more information please see:
http://activemq.apache.org/
INFO AMQPersistenceAdapter - AMQStore starting using directory: C:\Pro
gram Files\apache-activemq-5.1.0\bin\..\data
INFO KahaStore - Kaha Store using data directory C:\Progra
m Files\apache-activemq-5.1.0\bin\..\data\kr-store\state
INFO AMQPersistenceAdapter - Active data files: [1]
INFO KahaStore - Kaha Store using data directory C:\Progra
m Files\apache-activemq-5.1.0\bin\..\data\kr-store\data
INFO TransportServerThreadSupport - Listening for connections at: tcp://pc911
830016168:61616
INFO TransportConnector - Connector openwire Started
INFO TransportServerThreadSupport - Listening for connections at: ssl://pc911
830016168:61617
INFO TransportConnector - Connector ssl Started
INFO TransportServerThreadSupport - Listening for connections at: stomp://pc9
11830016168:61613
INFO TransportConnector - Connector stomp Started
INFO TransportServerThreadSupport - Listening for connections at: xmpp://pc91
1830016168:61222
INFO TransportConnector - Connector xmpp Started
INFO NetworkConnector - Network Connector default-nc Started
INFO BrokerService - ActiveMQ JMS Message Broker (localhost, I
D:pc911830016168-4261-1211802211218-0:0) started
INFO log - Logging to org.slf4j.impl.JCLLoggerAdapte
r(org.mortbay.log) via org.mortbay.log.Slf4jLog
INFO log - jetty-6.1.9
INFO WebConsoleStarter - ActiveMQ WebConsole initialized.
INFO /admin - Initializing Spring FrameworkServlet 'dis
patcher'
INFO log - ActiveMQ Console at http://0.0.0.0:8161/a
dmin
INFO log - ActiveMQ Web Demos at http://0.0.0.0:8161
/demo
INFO log - RESTful file access application at http:/
/0.0.0.0:8161/fileserver
INFO log - Started [EMAIL PROTECTED]:81
61
ERROR: java.lang.RuntimeException: Failed to execute start task. Reason: java.la
ng.NullPointerException
java.lang.RuntimeException: Failed to execute start task. Reason: java.lang.Null
PointerException
at org.apache.activemq.console.command.StartCommand.runTask(StartCommand
.java:98)
at org.apache.activemq.console.command.AbstractCommand.execute(AbstractC
ommand.java:57)
at org.apache.activemq.console.command.ShellCommand.runTask(ShellCommand
.java:129)
at org.apache.activemq.console.command.AbstractCommand.execute(AbstractC
ommand.java:57)
at org.apache.activemq.console.command.ShellCommand.main(ShellCommand.ja
va:79)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.activemq.console.Main.runTaskClass(Main.java:222)
at org.apache.activemq.console.Main.main(Main.java:106)
Caused by: java.lang.NullPointerException
at org.apache.camel.model.ExpressionNode.createFilterProcessor(Expressio
nNode.java:91)
at org.apache.camel.model.WhenType.createProcessor(WhenType.java:49)
at org.apache.camel.model.ChoiceType.createProcessor(ChoiceType.java:57)
at org.apache.camel.model.ProcessorType.makeProcessor(ProcessorType.java
:1387)
at org.apache.camel.model.ProcessorType.addRoutes(ProcessorType.java:95)
at org.apache.camel.model.RouteType.addRoutes(RouteType.java:189)
at org.apache.camel.model.RouteType.addRoutes(RouteType.java:83)
at org.apache.camel.impl.DefaultCamelContext.startRouteDefinitions(Defau
ltCamelContext.java:438)
at org.apache.camel.impl.DefaultCamelContext.doStart(DefaultCamelContext
.java:430)
at org.apache.camel.spring.SpringCamelContext.doStart(SpringCamelContext
.java:148)
at org.apache.camel.impl.ServiceSupport.start(ServiceSupport.java:47)
at org.apache.camel.spring.SpringCamelContext.onApplicationEvent(SpringC
amelContext.java:102)
at org.springframework.context.event.SimpleApplicationEventMulticaster$1
.run(SimpleApplicationEventMulticaster.java:78)
at org.springframework.core.task.SyncTaskExecutor.execute(SyncTaskExecut
or.java:49)
at org.springframework.context.event.SimpleApplicationEventMulticaster.m
ulticastEvent(SimpleApplicationEventMulticaster.java:76)
at org.springframework.context.support.AbstractApplicationContext.publis
hEvent(AbstractApplicationContext.java:260)
at org.springframework.context.support.AbstractApplicationContext.finish
Refresh(AbstractApplicationContext.java:744)
at org.springframework.context.support.AbstractApplicationContext.refres
h(AbstractApplicationContext.java:372)
at org.apache.xbean.spring.context.ResourceXmlApplicationContext.<init>(
ResourceXmlApplicationContext.java:64)
at org.apache.xbean.spring.context.ResourceXmlApplicationContext.<init>(
ResourceXmlApplicationContext.java:52)
at org.apache.activemq.xbean.XBeanBrokerFactory.createApplicationContext
(XBeanBrokerFactory.java:96)
at org.apache.activemq.xbean.XBeanBrokerFactory.createBroker(XBeanBroker
Factory.java:52)
at org.apache.activemq.broker.BrokerFactory.createBroker(BrokerFactory.j
ava:71)
at org.apache.activemq.broker.BrokerFactory.createBroker(BrokerFactory.j
ava:54)
at org.apache.activemq.console.command.StartCommand.startBroker(StartCom
mand.java:111)
at org.apache.activemq.console.command.StartCommand.runTask(StartCommand
.java:73)
... 10 more
ERROR: java.lang.Exception: java.lang.NullPointerException
java.lang.Exception: java.lang.NullPointerException
at org.apache.activemq.console.command.StartCommand.runTask(StartCommand
.java:99)
at org.apache.activemq.console.command.AbstractCommand.execute(AbstractC
ommand.java:57)
at org.apache.activemq.console.command.ShellCommand.runTask(ShellCommand
.java:129)
at org.apache.activemq.console.command.AbstractCommand.execute(AbstractC
ommand.java:57)
at org.apache.activemq.console.command.ShellCommand.main(ShellCommand.ja
va:79)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.activemq.console.Main.runTaskClass(Main.java:222)
at org.apache.activemq.console.Main.main(Main.java:106)
Caused by: java.lang.NullPointerException
at org.apache.camel.model.ExpressionNode.createFilterProcessor(Expressio
nNode.java:91)
at org.apache.camel.model.WhenType.createProcessor(WhenType.java:49)
at org.apache.camel.model.ChoiceType.createProcessor(ChoiceType.java:57)
at org.apache.camel.model.ProcessorType.makeProcessor(ProcessorType.java
:1387)
at org.apache.camel.model.ProcessorType.addRoutes(ProcessorType.java:95)
at org.apache.camel.model.RouteType.addRoutes(RouteType.java:189)
at org.apache.camel.model.RouteType.addRoutes(RouteType.java:83)
at org.apache.camel.impl.DefaultCamelContext.startRouteDefinitions(Defau
ltCamelContext.java:438)
at org.apache.camel.impl.DefaultCamelContext.doStart(DefaultCamelContext
.java:430)
at org.apache.camel.spring.SpringCamelContext.doStart(SpringCamelContext
.java:148)
at org.apache.camel.impl.ServiceSupport.start(ServiceSupport.java:47)
at org.apache.camel.spring.SpringCamelContext.onApplicationEvent(SpringC
amelContext.java:102)
at org.springframework.context.event.SimpleApplicationEventMulticaster$1
.run(SimpleApplicationEventMulticaster.java:78)
at org.springframework.core.task.SyncTaskExecutor.execute(SyncTaskExecut
or.java:49)
at org.springframework.context.event.SimpleApplicationEventMulticaster.m
ulticastEvent(SimpleApplicationEventMulticaster.java:76)
at org.springframework.context.support.AbstractApplicationContext.publis
hEvent(AbstractApplicationContext.java:260)
at org.springframework.context.support.AbstractApplicationContext.finish
Refresh(AbstractApplicationContext.java:744)
at org.springframework.context.support.AbstractApplicationContext.refres
h(AbstractApplicationContext.java:372)
at org.apache.xbean.spring.context.ResourceXmlApplicationContext.<init>(
ResourceXmlApplicationContext.java:64)
at org.apache.xbean.spring.context.ResourceXmlApplicationContext.<init>(
ResourceXmlApplicationContext.java:52)
at org.apache.activemq.xbean.XBeanBrokerFactory.createApplicationContext
(XBeanBrokerFactory.java:96)
at org.apache.activemq.xbean.XBeanBrokerFactory.createBroker(XBeanBroker
Factory.java:52)
at org.apache.activemq.broker.BrokerFactory.createBroker(BrokerFactory.j
ava:71)
at org.apache.activemq.broker.BrokerFactory.createBroker(BrokerFactory.j
ava:54)
at org.apache.activemq.console.command.StartCommand.startBroker(StartCom
mand.java:111)
at org.apache.activemq.console.command.StartCommand.runTask(StartCommand
.java:73)
... 10 more
Cheers
Daniel
