Hi, If you want to access the CamelLoopIndex, you should use properties['CamelLoopIndex'] instead of property(CamelLoopIndex).
-- Willem Jiang Red Hat, Inc. FuseSource is now part of Red Hat Web: http://www.fusesource.com | http://www.redhat.com Blog: http://willemjiang.blogspot.com (http://willemjiang.blogspot.com/) (English) http://jnn.iteye.com (http://jnn.javaeye.com/) (Chinese) Twitter: willemjiang Weibo: 姜宁willem On Monday, July 15, 2013 at 9:24 AM, bocamel wrote: > I need to access CamelLoopIndex within a route. According to > http://camel.apache.org/loop.html, CamelLoopIndex is a property in the > Exchange while in the loop. I tried this simple test route: > > <camel:route> > <camel:from uri="file:src/data?noop=true"/> > <setBody><constant>Count </constant></setBody> > <camel:loop> > <constant>5</constant> > <setBody><camel:spel>#{body + ':' + > property(CamelLoopIndex)}</camel:spel></setBody> > <camel:to uri="file:target/messages/out" /> > </camel:loop> > </camel:route> > > But I received the error below. Any help will be greatly appreciated. > > > org.apache.camel.ExpressionEvaluationException: > org.springframework.expression.spel.SpelEvaluationException: EL1008E:(pos > 22): Field or property 'CamelLoopIndex' cannot be found on object of type > 'org.apache.camel.language.spel.RootObject' > at > org.apache.camel.language.spel.SpelExpression.evaluate(SpelExpression.java:64) > at > org.apache.camel.processor.SetBodyProcessor.process(SetBodyProcessor.java:38) > at > org.apache.camel.util.AsyncProcessorConverterHelper$ProcessorToAsyncProcessorBridge.process(AsyncProcessorConverterHelper.java:61) > at > org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73) > at > org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:99) > at > org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90) > at > org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:72) > at > org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73) > at > org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:99) > at > org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90) > at > org.apache.camel.processor.interceptor.BacklogTracerInterceptor.process(BacklogTracerInterceptor.java:84) > at > org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73) > at > org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:99) > at > org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90) > at > org.apache.camel.processor.interceptor.TraceInterceptor.process(TraceInterceptor.java:91) > at > org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73) > at > org.apache.camel.processor.RedeliveryErrorHandler.processErrorHandler(RedeliveryErrorHandler.java:390) > at > org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:273) > at > org.apache.camel.processor.RouteContextProcessor.processNext(RouteContextProcessor.java:46) > at > org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90) > at > org.apache.camel.processor.interceptor.DefaultChannel.process(DefaultChannel.java:335) > at > org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73) > at org.apache.camel.processor.Pipeline.process(Pipeline.java:117) > at org.apache.camel.processor.Pipeline.process(Pipeline.java:80) > at > org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73) > at > org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:99) > at org.apache.camel.processor.LoopProcessor.process(LoopProcessor.java:103) > at org.apache.camel.processor.LoopProcessor.process(LoopProcessor.java:74) > at > org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73) > at > org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:99) > at > org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90) > at > org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:72) > at > org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73) > at > org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:99) > at > org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90) > at > org.apache.camel.processor.interceptor.BacklogTracerInterceptor.process(BacklogTracerInterceptor.java:84) > at > org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73) > at > org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:99) > at > org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90) > at > org.apache.camel.processor.interceptor.TraceInterceptor.process(TraceInterceptor.java:91) > at > org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73) > at > org.apache.camel.processor.RedeliveryErrorHandler.processErrorHandler(RedeliveryErrorHandler.java:390) > at > org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:273) > at > org.apache.camel.processor.RouteContextProcessor.processNext(RouteContextProcessor.java:46) > at > org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90) > at > org.apache.camel.processor.interceptor.DefaultChannel.process(DefaultChannel.java:335) > at > org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73) > at org.apache.camel.processor.Pipeline.process(Pipeline.java:117) > at org.apache.camel.processor.Pipeline.process(Pipeline.java:80) > at > org.apache.camel.processor.RouteContextProcessor.processNext(RouteContextProcessor.java:46) > at > org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90) > at > org.apache.camel.processor.UnitOfWorkProcessor.processAsync(UnitOfWorkProcessor.java:150) > at > org.apache.camel.processor.UnitOfWorkProcessor.process(UnitOfWorkProcessor.java:117) > at > org.apache.camel.processor.RouteInflightRepositoryProcessor.processNext(RouteInflightRepositoryProcessor.java:48) > at > org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90) > at > org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73) > at > org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:99) > at > org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90) > at > org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:72) > at > org.apache.camel.component.file.GenericFileConsumer.processExchange(GenericFileConsumer.java:350) > at > org.apache.camel.component.file.GenericFileConsumer.processBatch(GenericFileConsumer.java:197) > at > org.apache.camel.component.file.GenericFileConsumer.poll(GenericFileConsumer.java:163) > at > org.apache.camel.impl.ScheduledPollConsumer.doRun(ScheduledPollConsumer.java:141) > at > org.apache.camel.impl.ScheduledPollConsumer.run(ScheduledPollConsumer.java:91) > at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) > at > java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:351) > at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:178) > at > java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178) > at > java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) > at java.lang.Thread.run(Thread.java:722) > Caused by: org.springframework.expression.spel.SpelEvaluationException: > EL1008E:(pos 22): Field or property 'CamelLoopIndex' cannot be found on > object of type 'org.apache.camel.language.spel.RootObject' > at > org.springframework.expression.spel.ast.PropertyOrFieldReference.readProperty(PropertyOrFieldReference.java:208) > at > org.springframework.expression.spel.ast.PropertyOrFieldReference.getValueInternal(PropertyOrFieldReference.java:72) > at > org.springframework.expression.spel.ast.MethodReference.getValueInternal(MethodReference.java:65) > at > org.springframework.expression.spel.ast.OpPlus.getValueInternal(OpPlus.java:70) > at > org.springframework.expression.spel.ast.SpelNodeImpl.getValue(SpelNodeImpl.java:93) > at > org.springframework.expression.spel.standard.SpelExpression.getValue(SpelExpression.java:88) > at > org.apache.camel.language.spel.SpelExpression.evaluate(SpelExpression.java:60) > ... 71 more > > > > > -- > View this message in context: > http://camel.465427.n5.nabble.com/Cannot-access-CamelLoopIndex-in-route-using-spel-tp5735638.html > Sent from the Camel - Users mailing list archive at Nabble.com > (http://Nabble.com). >
