CODEWITHSUNDEEP
apache-camelcamel-jms
JointEffort
JointEffort

Reputation: 643

Custom camel header not stored in JMS message property

I'm playing around with Camel, and as a simple testcase, I want to add an header to the incoming message and store it in a JMS queue (activemq). This is the code using the REST dsl:

rest("/query-set")
  .id("queryset-route")
  .get("{id}")
      .route()
          .process((exchange) -> {
              exchange.getIn().setHeader("myHeader", constant(UUID.randomUUID()));
          })
          .setHeader(Exchange.HTTP_RESPONSE_CODE, constant(200))
      .endParent()
      .marshal().json(JsonLibrary.Jackson)
      .to("jms:queue:querysetRequests?exchangePattern=InOnly");

Now when I do a GET with HTTPie (httpie.org):

http -a admin:admin GET http://localhost:8080/camel/query-set/someId?key=value 'Foo:bar'

and inspect the message in the queue, I notice the following:

BUT, my custom 'myHeader' with the random UUID as value is NOT present in as a JMS property.

What am I doing wrong?

Upvotes: 2

Views: 3072

Answers (1)

Claus Ibsen
Claus Ibsen

Reputation: 55750

You are using a Processor to set the header, and therefore you should just set the header value as-is. You should not use constant, eg

exchange.getIn().setHeader("myHeader", UUID.randomUUID());

as its just plain regular Java code.

And mind that JMS spec forbids certain types in JMS properties (aka Camel headers). There is some details at: http://camel.apache.org/jms

Upvotes: 1

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