Package kieker.monitoring.probe.servlet

Class CPUsCombinedServletContextListener

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

Starts and stops the periodic logging of CPU utilization 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>CPUsCombinedServletContextListener.samplingIntervalSeconds</param-name>
  <param-value>15</param-value>
 </context-param>

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

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

 ...
 </web-app>
 }

Since:
1.3
Author:
Andre van Hoorn