Task scheduler

The MBean task scheduler can be launched using the agent. The script agenttask.cmd is provided to do this. There are two optional command line arguments. The first specifies the URL of a startup task descriptor, which is executed when the start() method is invoked. The second specifies the URL of a shutdown task descriptor, which is executed when the stop() method is invoked.

The task scheduler also has operations for scheduling task descriptors for either one-off execution, or repeated fixed-rate or fixed-delay execution.

XML Task Descriptor


<?xml version="1.0" encoding="UTF-8"?>
<task>
   <create mbean="Test:type=mbean1,info=listener" name="org.jmx.test.TestMBean">
      <parameter value="example test MBean" type="java.lang.String"/>
   </create>
   <create mbean="Test:type=mbean2,info=emitter" name="org.jmx.test.EmitterMBean"/>
   <attribute mbean="Test:type=mbean2,info=emitter" name="SamplingRate" value="25"/>
   <!-- filter and handback are optional -->
   <addListener mbean="Test:type=mbean2,info=emitter" name="Test:type=mbean1,info=listener" filter="observable.*" handback="1"/>
   <invoke mbean="Test:type=mbean2,info=emitter" name="startFile">
      <parameter value="file.txt" type="java.io.File"/>
   </invoke>
   <!-- filter and handback are optional -->
   <removeListener mbean="Test:type=mbean2,info=emitter" name="Test:type=mbean1,info=listener" filter="observable.*" handback="1"/>
   <unregister mbean="Test:type=mbean1,info=listener"/>
   <unregister mbean="Test:type=mbean2,info=emitter"/>
</task>