gistfile1.xml

<service name="PermissionsSetterService">
  <inbound>
    <vm:inbound-endpoint path="rabbitmq.permissions.set"
                         synchronous="true" />
    <selective-consumer-router>
      <regex-filter pattern="ok" />
    </selective-consumer-router>
    <forwarding-catch-all-strategy>
      <vm:outbound-endpoint path="rabbitmq.user.creation.failures"
                            synchronous="true" />
    </forwarding-catch-all-strategy>
  </inbound>
  <outbound>
    <pass-through-router>
      <erlang:outbound-endpoint node="rabbit@${host.name}"
                                moduleFunction="rabbit_access_control:set_permissions"
                                invocationType="RPC"
                                synchronous="true">
        <transformers>
          <expression-transformer>
            <return-argument expression="[userDetails.username.bytes,userDetails.vhost.bytes,userDetails.configure.bytes,userDetails.write.bytes,userDetails.read.bytes]"
                             evaluator="groovy" />
          </expression-transformer>
        </transformers>
      </erlang:outbound-endpoint>
    </pass-through-router>
  </outbound>
</service>