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- PR Comments - Switch to Jackson2 - Fix oxm config Polishing INTSAMPLES-127 Update to SI 4.0.0.RC1 INTSAMPLES-127 Remove Servlet Dependency travel sample; see INT-3350. INTSAMPLES-127 Update Samples to SI 4.0.0 JIRA: https://jira.spring.io/browse/INTSAMPLES-127 Created `maint` branch for ongoing SI 3.0.x samples.
JMX Sample
This example demonstrates the following aspects of the JMX support available with Spring Integration:
- JMX Attribute Polling Channel
- JMX Operation Invoking Channel Adapter
StopWatch is a Managed Bean. It is bootstraped and deployed using annotation support (@Component, @ManagedResource) and component scanning functionality provided by Spring JMX. Internally StopWatch simply runs a task that increments the value of its seconds attribute by 1 every second.
The JMX Attribute Polling Channel Adapter simply polls a managed attribute seconds of the StopWatch MBean identified by the name:
org.springframework.integration.samples.jmx:type=StopWatch,name=stopWatch
It sends its value to a seconds channel. The interesting part is that the seconds channel is a publish-subscribe-channel and has two subscribers:
- Stdout Channel Adapter which prints the value of the polled attribute to the console
- Filter which essentially waits till the payload value is 10
Once the payload value is 10, the filter sends the Message to a reset channel, which is represented as JMX Operation Invoking Channel Adapter. That adapter simply invokes the reset operation on the same StopWatch MBean resetting the seconds attribute value back to 1 and the process repeats.
To run the JMX Adapter sample simply execute JmxAdapterDemoTest. You will see output similar to this, which will loop for ~20 seconds:
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. . .