org.jboss.varia.counter
Class CounterInterceptor

java.lang.Object
  extended by org.jboss.ejb.plugins.AbstractInterceptor
      extended by org.jboss.varia.counter.CounterInterceptor
All Implemented Interfaces:
org.jboss.ejb.AllowedOperationsFlags, org.jboss.ejb.ContainerPlugin, org.jboss.ejb.Interceptor, org.jboss.system.Service

public class CounterInterceptor
extends org.jboss.ejb.plugins.AbstractInterceptor

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.

Version:
$Revision: 1.7.6.1 $
Author:
Dan Christopherson

Field Summary
 
Fields inherited from class org.jboss.ejb.plugins.AbstractInterceptor
log, nextInterceptor
 
Fields inherited from interface org.jboss.ejb.AllowedOperationsFlags
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()
           
 org.jboss.ejb.Container getContainer()
           
 Object invoke(org.jboss.invocation.Invocation mi)
           
 Object invokeHome(org.jboss.invocation.Invocation mi)
           
 void resetStatistic()
           
 Map retrieveStatistic()
           
 void sample(Object s)
           
 void setContainer(org.jboss.ejb.Container container)
           
 
Methods inherited from class org.jboss.ejb.plugins.AbstractInterceptor
destroy, getNext, isAppException, setNext, start, stop
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

CounterInterceptor

public CounterInterceptor()
Method Detail

setContainer

public void setContainer(org.jboss.ejb.Container container)
Specified by:
setContainer in interface org.jboss.ejb.ContainerPlugin
Overrides:
setContainer in class org.jboss.ejb.plugins.AbstractInterceptor

getContainer

public org.jboss.ejb.Container getContainer()
Overrides:
getContainer in class org.jboss.ejb.plugins.AbstractInterceptor

invokeHome

public Object invokeHome(org.jboss.invocation.Invocation mi)
                  throws Exception
Specified by:
invokeHome in interface org.jboss.ejb.Interceptor
Overrides:
invokeHome in class org.jboss.ejb.plugins.AbstractInterceptor
Throws:
Exception

invoke

public Object invoke(org.jboss.invocation.Invocation mi)
              throws Exception
Specified by:
invoke in interface org.jboss.ejb.Interceptor
Overrides:
invoke in class org.jboss.ejb.plugins.AbstractInterceptor
Throws:
Exception

create

public void create()
            throws Exception
Specified by:
create in interface org.jboss.system.Service
Overrides:
create in class org.jboss.ejb.plugins.AbstractInterceptor
Throws:
Exception

sample

public void sample(Object s)

retrieveStatistic

public Map retrieveStatistic()

resetStatistic

public void resetStatistic()


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