org.ow2.easybeans.component.audit.Auditor Maven / Gradle / Ivy
/**
* EasyBeans
* Copyright (C) 2010-2012 Bull S.A.S.
* Contact: [email protected]
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*
* --------------------------------------------------------------------------
* $Id: Auditor.java 5468 2010-04-21 12:44:14Z benoitf $
* --------------------------------------------------------------------------
*/
package org.ow2.easybeans.component.audit;
import org.ow2.easybeans.api.event.EZBEvent;
import org.ow2.easybeans.api.event.EZBEventListener;
import org.ow2.easybeans.api.event.bean.EZBEventBeanInvocationBegin;
import org.ow2.easybeans.api.event.bean.EZBEventBeanInvocationEnd;
import org.ow2.easybeans.api.event.bean.EZBEventBeanInvocationError;
import org.ow2.easybeans.api.event.lifecycle.EZBEventLifeCycle;
import org.ow2.easybeans.api.event.lifecycle.EZBEventLifeCycleStarted;
import org.ow2.easybeans.api.event.lifecycle.EZBEventLifeCycleStarting;
import org.ow2.easybeans.api.event.lifecycle.EZBEventLifeCycleStopped;
import org.ow2.easybeans.api.event.lifecycle.EZBEventLifeCycleStopping;
import org.ow2.easybeans.component.audit.jmx.JMXNotifier;
import org.ow2.easybeans.component.audit.report.InvocationAuditReportFactory;
import org.ow2.util.auditreport.impl.GenericAuditReport;
import org.ow2.util.auditreport.impl.LifeCycleAuditReport;
import org.ow2.util.auditreport.impl.LifeCycleAuditReport.STEP;
import org.ow2.util.auditreport.impl.event.Event;
import org.ow2.util.event.api.EventPriority;
import org.ow2.util.event.api.IEvent;
import org.ow2.util.event.api.IEventService;
import org.ow2.util.event.impl.EventDispatcher;
/**
* This class listen to every event comming from its audited bean.
* @author Mathieu ANCELIN
*/
public class Auditor implements EZBEventListener {
/**
* The event provider filter.
*/
private String eventProviderFilter = ".*";
/**
* JMX Notifier.
*/
private JMXNotifier jmxNotifier = null;
/**
* Invocation audit report factory.
*/
private InvocationAuditReportFactory invocationAuditReportFactory = null;
/**
* Enable/Disable lifecycle.
*/
private boolean lifecycleEnabled = false;
/**
* eventService to send audit report
*/
private IEventService eventService;
/**
* The constructor of the auditor.
* @param filter the filter of the listener.
* @param jmxNotifier the given JMX notifier.
* @param invocationAuditReportFactory the given invocation audit factory
*/
public Auditor(final String filter, final JMXNotifier jmxNotifier,
final InvocationAuditReportFactory invocationAuditReportFactory, final IEventService eventService) {
this.eventService = eventService;
this.eventProviderFilter = filter;
this.jmxNotifier = jmxNotifier;
this.invocationAuditReportFactory = invocationAuditReportFactory;
}
/**
* The handle method of the listener. Called any time an event is received.
* @param event the handled event.
*/
public void handle(final IEvent event) {
String eventOn = ((EZBEvent) event).getEventProviderId();
String methodName = eventOn.substring(eventOn.lastIndexOf("/") + 1, eventOn.length());
Event eventReport;
EventDispatcher dispatcherEJB = (EventDispatcher) this.eventService.getDispatcher("EJB");
if(dispatcherEJB == null) {
dispatcherEJB = new EventDispatcher();
dispatcherEJB.setNbWorkers(2);
dispatcherEJB.start();
this.eventService.registerDispatcher("EJB", dispatcherEJB);
dispatcherEJB = (EventDispatcher) this.eventService.getDispatcher("EJB");
}
if (EZBEventBeanInvocationBegin.class.isAssignableFrom(event.getClass())) {
EZBEventBeanInvocationBegin e = (EZBEventBeanInvocationBegin) event;
if (e.getEventProviderId().contains(this.eventProviderFilter)) {
this.invocationAuditReportFactory.prepareAuditReport(e.getTime(), methodName, Thread.currentThread(), e,e.getEventProviderId(), e.getCallerRoles(), e.getCallerPrincipal());
}
}
if (EZBEventBeanInvocationEnd.class.isAssignableFrom(event.getClass())) {
EZBEventBeanInvocationEnd eventEnd = (EZBEventBeanInvocationEnd) event;
if (eventEnd.getEventProviderId().contains(this.eventProviderFilter)) {
eventReport = new Event((GenericAuditReport)this.invocationAuditReportFactory.getAuditReport(eventEnd.getTime(), eventEnd,eventEnd.getEventProviderId()));
dispatcherEJB.dispatch(eventReport);
}
}
if (EZBEventBeanInvocationError.class.isAssignableFrom(event.getClass())) {
EZBEventBeanInvocationError eventEnd = (EZBEventBeanInvocationError) event;
if (eventEnd.getEventProviderId().contains(this.eventProviderFilter)) {
eventReport = new Event((GenericAuditReport)this.invocationAuditReportFactory.getAuditReport(eventEnd.getTime(), eventEnd,eventEnd.getEventProviderId()));
dispatcherEJB.dispatch(eventReport);
}
}
if (this.lifecycleEnabled) {
if (EZBEventLifeCycleStarted.class.isAssignableFrom(event.getClass())) {
EZBEventLifeCycleStarted eventEnd = (EZBEventLifeCycleStarted) event;
eventReport = new Event((GenericAuditReport)getLifeCycleAuditReport(eventEnd,
this.eventProviderFilter, STEP.STARTED, Thread.currentThread()));
dispatcherEJB.dispatch(eventReport);
}
if (EZBEventLifeCycleStarting.class.isAssignableFrom(event.getClass())) {
EZBEventLifeCycleStarting eventEnd = (EZBEventLifeCycleStarting) event;
eventReport = new Event((GenericAuditReport)getLifeCycleAuditReport(eventEnd,
this.eventProviderFilter, STEP.STARTING, Thread.currentThread()));
dispatcherEJB.dispatch(eventReport);
}
if (EZBEventLifeCycleStopped.class.isAssignableFrom(event.getClass())) {
EZBEventLifeCycleStopped eventEnd = (EZBEventLifeCycleStopped) event;
eventReport = new Event((GenericAuditReport)getLifeCycleAuditReport(eventEnd,
this.eventProviderFilter, STEP.STOPPED, Thread.currentThread()));
dispatcherEJB.dispatch(eventReport);
}
if (EZBEventLifeCycleStopping.class.isAssignableFrom(event.getClass())) {
EZBEventLifeCycleStopping eventEnd = (EZBEventLifeCycleStopping) event;
eventReport = new Event((GenericAuditReport)getLifeCycleAuditReport(eventEnd,
this.eventProviderFilter, STEP.STOPPING, Thread.currentThread()));
dispatcherEJB.dispatch(eventReport);
}
}
}
/**
* Get the event provider filter.
* The event provider filter is a regular expression that define which event
* provider the listener needs to listen.
* @return The event provider filter.
*/
public String getEventProviderFilter() {
return this.eventProviderFilter;
}
/**
* Check whether the listener wants to handle this event.
* @param event The event to check.
* @return True if the listener wants to handle this event, false otherwise.
*/
public boolean accept(final IEvent event) {
try {
if (((EZBEvent) event).getEventProviderId().contains(this.eventProviderFilter)) {
return true;
}
return false;
} catch (Throwable error) {
return false;
}
}
/**
* Get the listener priority.
* @return The listener priority.
*/
public EventPriority getPriority() {
return EventPriority.ASYNC_LOW;
}
/**
* This method return a new lifecycle audit report.
* @param event the event used to generate the report.
* @param beanName the name of the concerned bean.
* @param step the step of the event in the lifecycle.
* @param current the current thread.
* @return the builded audit report.
*/
public LifeCycleAuditReport getLifeCycleAuditReport(final EZBEventLifeCycle event, final String beanName, final STEP step,
final Thread current) {
int freeMemoryBefore = (int) (Runtime.getRuntime().freeMemory());
int totalMemoryBefore = (int) (Runtime.getRuntime().totalMemory());
int freeMemoryAfter = (int) (Runtime.getRuntime().freeMemory());
int totalMemoryAfter = (int) (Runtime.getRuntime().totalMemory());
return new LifeCycleAuditReport(event.getTime(), beanName, step, current, freeMemoryBefore, totalMemoryBefore,
freeMemoryAfter, totalMemoryAfter);
}
}
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