Hi Mind about the DLQ is usually a drop point for the message content, and as you use a file endpoint, then you can only reply this by having a route that pickup those files and route back to what its supposed to do. The actual exception message should still be logged in the log, so you have a chance to find out why it failed.
Also mind that this requires to be able to reply the message safely, eg the error may happen half way into a route, and then you replay the message from DLQ, and then it may re-process some parts it did before the error (idempotence). Since your example started from a JMS and a JMS broker has error handling and delivery, then have you though about using its feature for that, and not Camels. On Wed, Apr 22, 2020 at 2:59 PM Gerald Kallas <catsh...@mailbox.org> wrote: > > Hi Claus, > > tx for the reply. > > I already thought about direct send to the DLQ. > > When I'm going to use a file consumer with a failure directory configured eg > > <from uri="file:/var/casisp/files/prices?include=.*&moveFailed=error/> > > the move would be only executed when an exception has been thrown. Do you > have any hint on this with the approach as described? > > Best > - Gerald > > > Claus Ibsen <claus.ib...@gmail.com> hat am 22. April 2020 14:49 geschrieben: > > > > > > Hi > > > > Dont throw an exception again while handling the exception in doCatch. > > But instead you can send the message direct to the DLQ. > > And also dont make your error handling to complex. > > > > On Wed, Apr 22, 2020 at 2:37 PM Gerald Kallas <catsh...@mailbox.org> wrote: > > > > > > Hi all, > > > > > > I've following route. The doCatch should do some specific stuff in case > > > of an error, followed by a general execption thrown for hitting the error > > > handler. > > > > > > I'd expect that in case of an error the message would be sent to the DLQ > > > but this doesn't happen. > > > > > > What I'm doing wrong here? Tx for any hints. > > > > > > Best > > > - Gerald > > > > > > <blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0"; > > > > > > xmlns:ext="http://aries.apache.org/blueprint/xmlns/blueprint-ext/v1.0.0"; > > > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; > > > xsi:schemaLocation="http://www.osgi.org/xmlns/blueprint/v1.0.0 > > > https://www.osgi.org/xmlns/blueprint/v1.0.0/blueprint.xsd";> > > > > > > <bean id="redeliveryPolicyConfig" > > > class="org.apache.camel.processor.errorhandler.RedeliveryPolicy"> > > > <property name="maximumRedeliveries" value="3"/> > > > <property name="redeliveryDelay" value="5000"/> > > > </bean> > > > > > > <bean id="deadLetterErrorHandler" > > > class="org.apache.camel.builder.DeadLetterChannelBuilder"> > > > <property name="deadLetterUri" value="jms:queue:DLQ"/> > > > <property name="redeliveryPolicy" > > > ref="redeliveryPolicyConfig"/> > > > </bean> > > > > > > <camelContext> > > > > > > <route> > > > <from uri="jms:queue:TEST" > > > errorHandlerRef="deadLetterErrorHandler" /> > > > > > > <doTry> > > > > > > <to uri="https://someFailureEndpoint"; /> > > > > > > <doCatch> > > > > > > > > > <exception>java.lang.Exception</exception> > > > ... > > > > > > <throwException > > > exceptionType="java.lang.Exception" message="Exception captured."/> > > > </doCatch> > > > > > > <doFinally> > > > </doFinally> > > > > > > </doTry> > > > </route> > > > > > > </camelContext> > > > > > > </blueprint> > > > > > > > > -- > > Claus Ibsen > > ----------------- > > http://davsclaus.com @davsclaus > > Camel in Action 2: https://www.manning.com/ibsen2 -- Claus Ibsen ----------------- http://davsclaus.com @davsclaus Camel in Action 2: https://www.manning.com/ibsen2
