Question

我有一个石英预定流程，只有在初始流程完成后才能运行。初始流程设置必须存在于文件中的数据，以使石英计划流程成功。但是，石英工艺开始，初始过程永远不会开始。我只希望初始化运行一次所以我不希望它在石英流程中运行。

     <!-- Needs to run only once -->
      <flow name="InitialJob">
       <component ....
     </flow>

    <!-- Depends on InitialJob -->
    <flow name="ScheduledProcess">
          <quartz:inbound-endpoint responseTimeout="10000" doc:name="Schd" 
            cronExpression="0 */5 * * * ?" jobName="doIt" 
            repeatInterval="0">
            <quartz:event-generator-job/>
         </quartz:inbound-endpoint>

         <!-- I don't want to put InitialJob  here, 
           I only want it to run once
              -->
        <flow-ref name="PerformJob"/>
   </flow>

有没有办法实现这个目标？我如何安排流程来实现我的目标？

Answer 1

You can create two flows, one which will be triggered periodically but disabled on start-up and one that will set-up your data and activate the periodic flow. Something like:

    <!-- Will run periodically once started -->
    <flow name="PeriodicJob" initialState="stopped">
        <quartz:inbound-endpoint jobName="PeriodicJob" cronExpression="* * * * * ?" repeatInterval="0" responseTimeout="10000" doc:name="Quartz">
            <quartz:event-generator-job/>
        </quartz:inbound-endpoint>
        <flow-ref name="PerformJob"/>
    </flow>

    <!-- Will run once on start-up and activate PeriodJob -->
    <flow name="InitialJobRunOnce">
        <quartz:inbound-endpoint jobName="InitialJobRunOnce" repeatInterval="0" repeatCount="0" startDelay="0" responseTimeout="10000" doc:name="Quartz">
            <quartz:event-generator-job/>
        </quartz:inbound-endpoint>
        <expression-component doc:name="Activate period job"><![CDATA[app.registry.PeriodicJob.start();]]></expression-component>
    </flow>

Your initial flow will run once on start-up, but this "run a flow once" approach have some limits. If your application restart, the initial flow will run again - though this can be somehow mitigated by adding some logic to your initial flow.

Answer 2

In your initial flow try to start the quartz flow like this`<expression-component>
    app.registry.yourflowName.start();
  </expression-component>`

Then in after quartz flow is finished try to stop the initial flow with below script:`<expression-component>
    app.registry.yourflowName.stop();
  </expression-component>`

谢谢！

Mule - 如何安排仅在Quartz预定流程之前运行一次的流程

2 个答案: