Package kieker.monitoring.probe.servlet

Class CPUMemUsageServletContextListener

java.lang.Object
kieker.monitoring.probe.servlet.AbstractRegularSamplingServletContextListener
kieker.monitoring.probe.servlet.CPUMemUsageServletContextListener
All Implemented Interfaces:
java.util.EventListener, javax.servlet.ServletContextListener
public class CPUMemUsageServletContextListener
extends AbstractRegularSamplingServletContextListener

Starts and stops the periodic logging of CPU utilization and Memory usage employing the OshiSamplerFactory as the Servlet is initialized and destroyed respectively.
The initial delay and the sampling period (both given in seconds) can be configured via context-params in the web.xml file, as shown below.

The integration and configuration in a web.xml file works as follows:

  
  <web-app>
  ...

  <context-param>
   <param-name>CPUMemUsageServletContextListener.samplingIntervalSeconds</param-name>
   <param-value>15</param-value>
  </context-param>

  <context-param>
   <param-name>CPUMemUsageServletContextListener.initialSamplingDelaySeconds</param-name>
   <param-value>0</param-value>
  </context-param>

  <listener>
    <listener-class>
     kieker.monitoring.probe.servlet.CPUMemUsageServletContextListener
    </listener-class>
  </listener>

 ...
 </web-app>
 }

Since:
1.3
Author:
Andre van Hoorn