choice-processing.xml

<flow name="choiceFlow2">
  <description>
    Flow that shows the use of the choice element for selective message processing
  </description>
  <http:inbound-endpoint host="localhost" port="8080"/>
  <choice>
    <when expression="payload=='foo'" evaluator="groovy">
      <append-string-transformer message=" Hello foo" />
    </when>
    <when expression="payload=='bar'" evaluator="groovy">
      <append-string-transformer message=" Hello bar" />
    </when>
    <otherwise>
      <append-string-transformer message=" Hello ?" />
    </otherwise>
  </choice>
</flow>