Portlet filter mappings declared in the global portlet.xml file are applied across portlet applications. With the XML configuration below, the filter ApplicationMonitoringFilter involves in request handling on any deployed portlet.

<filter>
     <filter-name>org.exoplatform.portal.application.ApplicationMonitoringFilter</filter-name>
    <filter-class>org.exoplatform.portal.application.ApplicationMonitoringFilter</filter-class>
    <lifecycle>ACTION_PHASE</lifecycle>
    <lifecycle>RENDER_PHASE</lifecycle>
    <lifecycle>EVENT_PHASE</lifecycle>
    <lifecycle>RESOURCE_PHASE</lifecycle>
</filter>

Application Monitoring Filter supports four lifecycle phases as the order below: ACTION_PHASE/ EVENT_PHASE/ RENDER_PHASE/ RESOURCE_PHASE and records statistic information on deployed portlets. The filter alternates actual monitoring mechanism in WebUI Framework.