The Choice processor is a conditional statement that can be employed to route incoming messages to alternative producer endpoints. Each of these alternative producer endpoints will be preceded by a when method, which takes a predicate-argument. If the predicate happens to be true, the following target is selected, otherwise, processing will proceed to the next when in the rule.
XML DSL:
| Code Block |
|---|
<camelContext id="buildSimpleRouteWithChoice" xmlns="http://camel.apache.org/schema/spring">
<route>
<from uri="SourceURL"/>
<choice>
<when>
<!-- First predicate -->
<simple>header.foo = 'bar'</simple>
<to uri="Target1"/>
</when>
<when>
<!-- Second predicate -->
<simple>header.foo = 'manchu'</simple>
<to uri="Target2"/>
</when>
<otherwise>
<to uri="Target3"/>
</otherwise>
</choice>
</route>
</camelContext> |
Java DSL:
| Code Block |
|---|
from("direct:start")
.choice()
.when(bodyAs(String.class).contains("Camel"))
.loadBalance().roundRobin().to("mock:foo").to("mock:bar").endChoice()
.otherwise()
.to("mock:result"); |