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commit c0894b1ccde78bb200602040148ee74cae248367
Author: Claus Ibsen <claus.ib...@gmail.com>
AuthorDate: Wed Mar 7 08:37:57 2018 +0100
CAMEL-12324: Improve docs
---
.../src/main/docs/rabbitmq-component.adoc | 36 ++++++++++++++++++++++
1 file changed, 36 insertions(+)
diff --git a/components/camel-rabbitmq/src/main/docs/rabbitmq-component.adoc
b/components/camel-rabbitmq/src/main/docs/rabbitmq-component.adoc
index 9a941ea..d781a04 100644
--- a/components/camel-rabbitmq/src/main/docs/rabbitmq-component.adoc
+++ b/components/camel-rabbitmq/src/main/docs/rabbitmq-component.adoc
@@ -276,3 +276,39 @@ public Map<String, Object> bindArgsBuilder() {
}
----
+==== Routing between exchanges
+
+If you for example want to route messages from one Rabbit exchange to another
as shown
+in the example below with foo -> bar:
+
+[source,java]
+----
+from("rabbitmq://localhost/foo")
+ .to("rabbitmq://localhost/bar")
+----
+
+Then beware that Camel will route the message to itself, eg foo -> foo. So why
is that?
+This is because the consumer that receives the message (eg from) provides the
message header
+`rabbitmq.EXCHANGE_NAME` with the name of the exchange, eg `foo`. And when the
Camel producer
+is sending the message to `bar` then the header `rabbitmq.EXCHANGE_NAME` will
override this
+and instead send the message to `foo`.
+
+To avoid this you need to either:
+
+- remove the header
+
+[source,java]
+----
+from("rabbitmq://localhost/foo")
+ .removeHeader("rabbitmq.EXCHANGE_NAME")
+ .to("rabbitmq://localhost/bar")
+----
+
+- or turn on `bridgeEndpoint` mode on the producer.
+
+[source,java]
+----
+from("rabbitmq://localhost/foo")
+ .to("rabbitmq://localhost/bar?bridgeEndpoint=true")
+----
+
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