Number of Messages in Mule ESB VM inbound endpoint Queue

问题

How to get the number of messages in Mule ESB vm inbound endpoint Queue from the code?

Here is the configuration:

    <vm:connector name="queue.vm.connector">
    <vm:queue-profile maxOutstandingMessages="${oms.process.flow.max.queue.size}"/>
</vm:connector>

...
<flow name="Flow1"...
<vm:inbound-endpoint exchange-pattern="one-way" path="inbound_parcel.create.queue" responseTimeout="10000" mimeType="text/plain" connector-ref="queue.vm.connector" doc:name="Inbound Parcel Create Queue"/>

Thank you.

回答1:

That can be achieved using the following custom code:

VMConnector vmConnector = (VMConnector) muleContext.getRegistry().lookupConnector("queue.vm.connector");
vmConnector.getQueueManager().getQueueSession().getQueue("inbound_parcel.create.queue").size();

If the queue if persistent the same result can be achieved by monitoring the folder where message are stored:

${MULE_HOME}/.mule/${app.name}/queuestore/inbound_parcel.create.queue

来源：https://stackoverflow.com/questions/12775070/number-of-messages-in-mule-esb-vm-inbound-endpoint-queue