/*
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* or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
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*
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* file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
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* as provided by Sun in the GPL Version 2 section of the License file that
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* Header, with the fields enclosed by brackets [] replaced by your own
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* holder.
*/
/*
* @(#) ApplicationLoaderEventListener.java
*
* Copyright 2000-2001 by iPlanet/Sun Microsystems, Inc.,
* 901 San Antonio Road, Palo Alto, California, 94303, U.S.A.
* All rights reserved.
*
* This software is the confidential and proprietary information
* of iPlanet/Sun Microsystems, Inc. ("Confidential Information").
* You shall not disclose such Confidential Information and shall
* use it only in accordance with the terms of the license
* agreement you entered into with iPlanet/Sun Microsystems.
*/
package com.sun.enterprise.server.event;
import com.sun.enterprise.config.ConfigContext;
import com.sun.enterprise.deployment.Application;
/**
*
* ApplicationEvents are sent before/after an application
* is loaded/unloaded.
*
* Listeners that are interested in getting ApplicationLaoderEvents
* can register with the ApplicationLoaderEventNotifier as follows:
*
* ApplicationLoaderEventNotifier notifier =
* ApplicationLoaderEventNotifier.getInstance();
* notifier.addListener(listener);
*
* Application events are sent even when StandaloneModules are
* deployed / undeployed. ApplicationEvent.getApplication().isVirtual()
* will return true for stand-alone modules and false otherwise.
*
* Generally, APPLICATION events are sent in the following order
* a) BEFORE_APPLICATION_LOADED
* b) AFTER_APPLICATION_LOADED
* c) BEFORE_APPLICATION_UNLOADED
* d) AFTER_APPLICATION_UNLOADED
*
* Note:-
* There are some cases, when AFTER_APPLICATION_LOADED and
* BEFORE_APPLICATION_UNLOAD will not be sent to listeners.
* In particular, if an Ejb cannot be loaded successfully
* then no AFTER_APPLICATION_LOADED and BEFORE_APPLICATION_UNLOAD
* will be sent to the listeners.
*
*/
public class ApplicationEvent {
public static final int BEFORE_APPLICATION_LOAD = 0;
public static final int AFTER_APPLICATION_LOAD = 1;
public static final int BEFORE_APPLICATION_UNLOAD = 2;
public static final int AFTER_APPLICATION_UNLOAD = 3;
private int eventType;
private Application application;
private ClassLoader loader;
private ConfigContext configContext;
public ApplicationEvent(int eventType, Application application,
ClassLoader loader, ConfigContext configContext)
{
this.eventType = eventType;
this.application = application;
this.loader = loader;
this.configContext = configContext;
}
public int getEventType() {
return this.eventType;
}
public Application getApplication() {
return this.application;
}
public ClassLoader getClassLoader() {
return this.loader;
}
public ConfigContext getConfigContext() {
return this.configContext;
}
public String toString() {
StringBuffer sbuf = new StringBuffer("AppEvent: ");
return toString(sbuf);
}
/**
*Appends event info to the already-instantiated StringBuffer argument.
*@param StringBuffer already created and, optionally, already containing
*a prefix identfying which type of event this is.
*/
protected String toString(StringBuffer sbuf) {
switch (eventType) {
case BEFORE_APPLICATION_LOAD:
sbuf.append("BEFORE_LOAD -> ");
break;
case AFTER_APPLICATION_LOAD:
sbuf.append("AFTER_LOAD -> ");
break;
case BEFORE_APPLICATION_UNLOAD:
sbuf.append("BEFORE_UNLOAD -> ");
break;
case AFTER_APPLICATION_UNLOAD:
sbuf.append("AFTER_UNLOAD -> ");
break;
default:
//
}
if (application != null) {
sbuf.append(application.getRegistrationName());
}
return sbuf.toString();
}
}
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