Mule

Question

我有一个 quartz 计划流，它应该只在初始流完成后运行。初始流程设置数据，这些数据必须存在于文件中才能使 quartz 计划进程成功。但是，石英进程启动，而初始进程从未启动。我只希望首字母运行一次，所以我不希望它在石英流中成为运行。

     <!-- 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>

有办法实现吗？我如何安排流程来实现我的目标？

Answer 1

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！

Answer 2

您可以创建两个流，一个将定期触发但在启动时禁用，另一个将设置您的数据并激活周期性流。类似于：

    <!-- 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>

您的初始流程将运行启动一次，但这种 "run a flow once" 方法有一些限制。如果您的应用程序重新启动，初始流程将再次运行 - 尽管可以通过向初始流程添加一些逻辑来以某种方式缓解这种情况。

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