Hi I don't get what the instance that you mention in your questions.
Camel will create a new Message when it get the mms from the topic queue. I don't know how you link the "processRequest" route to "sendPesponse" route. It is important for us to answer the question of 4. -- 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.javaeye.com (http://jnn.javaeye.com/) (Chinese) Twitter: willemjiang Weibo: willemjiang On Friday, October 12, 2012 at 5:00 PM, zuff wrote: > Dear All, > > I'm suddenly feel a bit loss on the usage and behaviour of camel and > will like to seek clarification. > > <camel:camelContext> > > <route id="processRequest"> > <from uri="activemq:topic:request"/> > <bean ref="eventProcessor" method="processEvent"/> > </route> > > <route id="sendResponse"> > <from uri="direct:myProxy"/> > <setProperty propertyName="result"> > <method ref="convertor"/> > </setProperty> > <bean ref="strategyManager" > method="isStrategyCompleted(${property.result})"/> > <choice> > <when> > <simple>${body}</simple> > <bean ref="camelJMS" > method="sendComplete(${property.result})"/> > </when> > </choice> > </route> > </camel:camelContext> > > > Given the scenario: > > > T=0; Request 1 published to activemq:topic:request > T=1; Request 2 published to activemq:topic:request > T=3; Request 3 published to activemq:topic:request > T=60; (External system place the result file for Request 2 into a folder), > picked up by > <from uri="direct:myProxy"/> in route sendResponse > > My question. > 1. Does camel start a new instance for all new message at > activemq:topic:request > 2. If it does, will all 3 instances perform route sendResponse, even though > its not for them? > > 3. Camel is single instance, but will help to keep track of the exchanges > for you? (Very vague, and I not sure whether I imagining the correct > scenario. > > 4. Any other behaviour? I doubt it will hang at route 2, while waiting for > it to be trigger even if there are news messages on the > activemq:topic:request > > Thanks and Best Regards, > Zuff > > > > -- > View this message in context: > http://camel.465427.n5.nabble.com/Camel-Confusion-tp5720952.html > Sent from the Camel - Users mailing list archive at Nabble.com > (http://Nabble.com).
