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POMule message enricher from jdbc source
 

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    <p>I'd like to enrich the current message with two variables, LAST_POLL_START and LAST_POLL_END. These variables are then going to be used to build another jdbc query.</p> <p>However, I cannot understand how I should use the enricher. The code I've tried is below, and it is inspired by the code found <a href="http://www.mulesoft.org/jira/browse/MULE-5541?page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#issue-tabs" rel="nofollow">here</a> and on <a href="http://blogs.mulesoft.org/enrich-your-experience-orchestration-and-data-enrichment-with-mule-3-1/" rel="nofollow">Mule's blog</a>. In my mind, this should work. I'm using mule-3.2.0, and the jdbc query works and returns the correct values.</p> <pre><code>&lt;flow name="MasterFlow" processingStrategy="synchronous"&gt; &lt;quartz:inbound-endpoint jobName="cronJobPoolTime" cronExpression="0 0/1 * * * ?"&gt; &lt;quartz:endpoint-polling-job&gt; &lt;quartz:job-endpoint ref="jdbc_quartzDummy"/&gt; &lt;/quartz:endpoint-polling-job&gt; &lt;/quartz:inbound-endpoint&gt; &lt;flow-ref name="GetPollingTimes" /&gt; &lt;!-- Do other things --&gt; &lt;/flow&gt; &lt;!-- Below is needed when using Quartz trigger --&gt; &lt;jdbc:endpoint name="jdbc_quartzDummy" connector-ref="tabuConnector" queryKey="quartzDummy" /&gt; &lt;flow name="GetPollingTimes"&gt; &lt;enricher&gt; &lt;jdbc:outbound-endpoint queryKey="getPollTimes" exchange-pattern="request-response" /&gt; &lt;enrich target="#[variable:last_poll_start]" source="#[map-payload:LAST_POLL_START]"/&gt; &lt;enrich target="#[variable:last_poll_end]" source="#[map-payload:LAST_POLL_END]"/&gt; &lt;/enricher&gt; &lt;logger level="INFO" message="last_poll_start = #[variable:last_poll_start]" /&gt; &lt;/flow&gt; </code></pre> <p>The error message is:</p> <pre><code>WARN 2011-12-27 15:38:00,831 [scheduler-ESB_Worker-1] org.mule.DefaultMuleMessage: setProperty(key, value) called with null value; removing key: last_poll_start; please report the following stack trace to dev@mule.codehaus.org java.lang.Throwable at org.mule.DefaultMuleMessage.setProperty(DefaultMuleMessage.java:456) at org.mule.expression.VariableExpressionEnricher.enrich(VariableExpressionEnricher.java:24) at org.mule.expression.DefaultExpressionManager.enrich(DefaultExpressionManager.java:248) at org.mule.expression.DefaultExpressionManager.enrich(DefaultExpressionManager.java:237) at org.mule.enricher.MessageEnricher.enrich(MessageEnricher.java:69) at org.mule.enricher.MessageEnricher.process(MessageEnricher.java:43) at org.mule.processor.chain.DefaultMessageProcessorChain.doProcess(DefaultMessageProcessorChain.java:99) at org.mule.processor.chain.AbstractMessageProcessorChain.process(AbstractMessageProcessorChain.java:64) at org.mule.processor.AbstractInterceptingMessageProcessorBase.processNext(AbstractInterceptingMessageProcessorBase.java:105) at org.mule.processor.AsyncInterceptingMessageProcessor.process(AsyncInterceptingMessageProcessor.java:90) at org.mule.processor.chain.DefaultMessageProcessorChain.doProcess(DefaultMessageProcessorChain.java:99) at org.mule.processor.chain.AbstractMessageProcessorChain.process(AbstractMessageProcessorChain.java:64) at org.mule.processor.AbstractInterceptingMessageProcessorBase.processNext(AbstractInterceptingMessageProcessorBase.java:105) at org.mule.interceptor.AbstractEnvelopeInterceptor.process(AbstractEnvelopeInterceptor.java:55) at org.mule.processor.AbstractInterceptingMessageProcessorBase.processNext(AbstractInterceptingMessageProcessorBase.java:105) at org.mule.processor.AbstractFilteringMessageProcessor.process(AbstractFilteringMessageProcessor.java:41) at org.mule.processor.chain.DefaultMessageProcessorChain.doProcess(DefaultMessageProcessorChain.java:99) at org.mule.processor.chain.AbstractMessageProcessorChain.process(AbstractMessageProcessorChain.java:64) at org.mule.processor.chain.InterceptingChainLifecycleWrapper.doProcess(InterceptingChainLifecycleWrapper.java:56) at org.mule.processor.chain.AbstractMessageProcessorChain.process(AbstractMessageProcessorChain.java:64) at org.mule.processor.chain.InterceptingChainLifecycleWrapper.process(InterceptingChainLifecycleWrapper.java:87) at org.mule.construct.Flow.process(Flow.java:64) at org.mule.config.spring.factories.FlowRefFactoryBean$1.process(FlowRefFactoryBean.java:44) at org.mule.processor.chain.DefaultMessageProcessorChain.doProcess(DefaultMessageProcessorChain.java:99) at org.mule.processor.chain.AbstractMessageProcessorChain.process(AbstractMessageProcessorChain.java:64) at org.mule.processor.AbstractInterceptingMessageProcessorBase.processNext(AbstractInterceptingMessageProcessorBase.java:105) at org.mule.interceptor.AbstractEnvelopeInterceptor.process(AbstractEnvelopeInterceptor.java:55) at org.mule.processor.AbstractInterceptingMessageProcessorBase.processNext(AbstractInterceptingMessageProcessorBase.java:105) at org.mule.processor.AbstractFilteringMessageProcessor.process(AbstractFilteringMessageProcessor.java:41) at org.mule.processor.chain.DefaultMessageProcessorChain.doProcess(DefaultMessageProcessorChain.java:99) at org.mule.processor.chain.AbstractMessageProcessorChain.process(AbstractMessageProcessorChain.java:64) at org.mule.processor.chain.InterceptingChainLifecycleWrapper.doProcess(InterceptingChainLifecycleWrapper.java:56) at org.mule.processor.chain.AbstractMessageProcessorChain.process(AbstractMessageProcessorChain.java:64) at org.mule.processor.chain.InterceptingChainLifecycleWrapper.process(InterceptingChainLifecycleWrapper.java:87) at org.mule.construct.AbstractPipeline$1.process(AbstractPipeline.java:138) at org.mule.processor.chain.DefaultMessageProcessorChain.doProcess(DefaultMessageProcessorChain.java:99) at org.mule.processor.chain.AbstractMessageProcessorChain.process(AbstractMessageProcessorChain.java:64) at org.mule.processor.chain.InterceptingChainLifecycleWrapper.doProcess(InterceptingChainLifecycleWrapper.java:56) at org.mule.processor.chain.AbstractMessageProcessorChain.process(AbstractMessageProcessorChain.java:64) at org.mule.processor.chain.InterceptingChainLifecycleWrapper.process(InterceptingChainLifecycleWrapper.java:87) at org.mule.processor.chain.DefaultMessageProcessorChain.doProcess(DefaultMessageProcessorChain.java:99) at org.mule.processor.chain.AbstractMessageProcessorChain.process(AbstractMessageProcessorChain.java:64) at org.mule.processor.chain.InterceptingChainLifecycleWrapper.doProcess(InterceptingChainLifecycleWrapper.java:56) at org.mule.processor.chain.AbstractMessageProcessorChain.process(AbstractMessageProcessorChain.java:64) at org.mule.processor.chain.InterceptingChainLifecycleWrapper.process(InterceptingChainLifecycleWrapper.java:87) at org.mule.transport.AbstractMessageReceiver.routeMessage(AbstractMessageReceiver.java:190) at org.mule.transport.AbstractMessageReceiver.routeMessage(AbstractMessageReceiver.java:163) at org.mule.transport.AbstractMessageReceiver.routeMessage(AbstractMessageReceiver.java:150) at org.mule.transport.quartz.jobs.EndpointPollingJob$1.doInTransaction(EndpointPollingJob.java:162) at org.mule.transport.quartz.jobs.EndpointPollingJob$1.doInTransaction(EndpointPollingJob.java:125) at org.mule.transaction.TransactionTemplate.execute(TransactionTemplate.java:45) at org.mule.transport.quartz.jobs.EndpointPollingJob.doExecute(EndpointPollingJob.java:169) at org.mule.transport.quartz.jobs.AbstractJob.execute(AbstractJob.java:36) at org.quartz.core.JobRunShell.run(JobRunShell.java:202) at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:534) </code></pre> <p>Changing the enrich source to #[payload]:</p> <pre><code>&lt;enrich target="#[variable:last_poll_start]" source="#[payload]"/&gt; &lt;logger level="INFO" message="last_poll_start = #[variable:last_poll_start]" /&gt; </code></pre> <p>Produces (from log file):</p> <pre><code>org.mule.api.processor.LoggerMessageProcessor: last_poll_start = [{LAST_POLL_START=2011-12-21, LAST_POLL_END=2000-01-01}] </code></pre>
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    1. USOskar Ferm
    1. USOskar Ferm
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      1. VTUpMod
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    1. COAre you sure of the casing for the keys in the map payload? map-payload:LAST_POLL_START expects a DB field name in uppercase in the map payload.
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      1. USDavid Dossot
    2. COI have updated the question to show the output of using `source="#[payload]"`. That is the reason for believing that it is uppercase.
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    3. COFurthermore, `source="#[payload:LAST_POLL_START]"` gives: org.mule.api.MuleRuntimeException: Failed to process Expression Evaluation "LAST_POLL_START"
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