CounterInterceptor

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org.jboss.varia.counter
Class CounterInterceptor

java.lang.Object
  org.jboss.ejb.plugins.AbstractInterceptor (src) 
      org.jboss.varia.counter.CounterInterceptor

All Implemented Interfaces:: AllowedOperationsFlags (src) , ContainerPlugin (src) , Interceptor (src) , Service (src)

public class CounterInterceptor
extends AbstractInterceptor (src)

Interceptor that uses the CounterService MBean to record the length of time spent in 'lower' interceptors (below it in the stack).

How to use:

First, the CounterService MBean must be installed in JBoss. See counter-service.xml for details/examples.

Next, you need to configure this interceptor into the interceptor stacks of any beans you wish to monitor. This can be done either globally for a container-config in standardjboss.xml, or on a per-bean basis in a jar's jboss.jcml. Just insert the following at the top of the <container-interceptors> section. If you're overriding this for a bean in jboss.xml, you'll need to override the entire container-interceptors section.


 <interceptor>org.jboss.varia.counter.CounterInterceptor</interceptor>

This can go anywhere in the container-interceptors section, but either the top or the bottom will probably be best for gathering application statistics.

Field Summary

Fields inherited from class org.jboss.ejb.plugins.AbstractInterceptor (src)

log, nextInterceptor

Fields inherited from interface org.jboss.ejb.AllowedOperationsFlags (src)

IN_AFTER_BEGIN, IN_AFTER_COMPLETION, IN_BEFORE_COMPLETION, IN_BUSINESS_METHOD, IN_EJB_ACTIVATE, IN_EJB_CREATE, IN_EJB_FIND, IN_EJB_HOME, IN_EJB_LOAD, IN_EJB_PASSIVATE, IN_EJB_POST_CREATE, IN_EJB_REMOVE, IN_EJB_STORE, IN_EJB_TIMEOUT, IN_INTERCEPTOR_METHOD, IN_SERVICE_ENDPOINT_METHOD, IN_SET_ENTITY_CONTEXT, IN_SET_MESSAGE_DRIVEN_CONTEXT, IN_SET_SESSION_CONTEXT, IN_UNSET_ENTITY_CONTEXT, NOT_ALLOWED

Constructor Summary
`CounterInterceptor()`

Method Summary
`void`	`create()` create the service, do expensive operations etc
`Container (src)`	`getContainer()`
`java.lang.Object`	`invoke(Invocation (src) mi)` ???
`java.lang.Object`	`invokeHome(Invocation (src) mi)` ???
`void`	`resetStatistic()`
`java.util.Map`	`retrieveStatistic()`
`void`	`sample(java.lang.Object s)`
`void`	`setContainer(Container (src) container)` This callback is set by the container so that the plugin may access it

Methods inherited from class org.jboss.ejb.plugins.AbstractInterceptor (src)

destroy, getNext, setNext, start, stop

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail