Question

我基本上有两个流程：

HTTP入站端点接收批处理XML，拆分为单个部分并将其分级到JMS队列。
从JMS队列中读取暂存的XML并处理消息。

我需要使用Rest调用来控制上面的流2的执行（即）流2应该仅在接收到HTTP入站呼叫时运行。我使用的是Mule版本3.2.2

以下是流程：

         <flow name="flow-stage-input">
           <http:inbound-endpoint   host="localhost" 
                        port=   "8082" 
                        path=   "test/order"
                        exchange-pattern=   "request-response"
                                    >

           </http:inbound-endpoint>
          <object-to-string-transformer></object-to-string-transformer>
          <splitter evaluator="xpath" expression="//Test/TestNode" enableCorrelation="ALWAYS"/>
          <custom-transformer class="org.testing.transformers.DocumentToString"></custom-transformer>

          <pooled-component>
                <spring-object bean="receiver"></spring-object>
          </pooled-component>

          <!-- DECIDE SUCCESS OR FAILURE --> 
          <choice>
                <when expression="//Test/TestNode" evaluator="xpath">
            <jms:outbound-endpoint queue="stagingQueue" exchange-pattern="one-way" connector-ref="jmsConnector" />
            </when>
            <otherwise>
                <logger message="Skipped staging message due to errors" level="ERROR" /> 
            </otherwise>
          </choice>
          <collection-aggregator></collection-aggregator>
          <custom-transformer class="org.testing.transformers.ListOfStringsToString"></custom-transformer>
          <!-- RESPONSE SENT BACK TO CALLER -->
        </flow>




        <flow name="flow-process-jms-input" > 
           <jms:inbound-endpoint  queue="stagingQueue" exchange-pattern="one-way" connector-ref="jmsConnector" />
           <pooled-component>
            <spring-object bean="processor"></spring-object>
           </pooled-component>
           <!-- DECIDE SUCCESS OR FAILURE  -->
           <choice>
                 <when expression="//ErrorCondition/Path" evaluator="xpath">
                <jms:outbound-endpoint queue="errorQueue" exchange-pattern="one-way" connector-ref="jmsConnector" />
             </when>
             <otherwise>
                <logger message="Message processed successfully" level="ERROR" /> 
             </otherwise>
           </choice>
         </flow>

Answer 1

使用流2中的Groovy脚本使用以下命令从队列中请求一条JMS消息：

muleContext.client.request("jms://stagingQueue", 0)

如果队列为空，则返回null，否则返回包含JMS消息的Mule消息。

如何使用HTTP端点启动mule流以从JMS队列读取消息

1 个答案: