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/*
* @(#) ApplicationClientModuleLoader.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;
import com.sun.enterprise.server.event.ApplicationClientEvent;
import com.sun.enterprise.server.event.ApplicationLoaderEventNotifier;
import java.net.URL;
import java.util.Set;
import com.sun.enterprise.loader.EJBClassPathUtils;
import com.sun.enterprise.config.ConfigException;
import com.sun.enterprise.instance.AppclientModulesManager;
import java.util.jar.Manifest;
import java.util.logging.Level;
import java.util.logging.Logger;
import com.sun.logging.LogDomains;
import com.sun.enterprise.loader.EJBClassLoader;
// for jsr77
import com.sun.enterprise.instance.InstanceEnvironment;
import com.sun.enterprise.deployment.ApplicationClientDescriptor;
import com.sun.enterprise.deployment.node.J2EEDocumentBuilder;
import com.sun.enterprise.deployment.Descriptor;
import com.sun.enterprise.deployment.EjbDescriptor;
import com.sun.enterprise.deployment.EjbBundleDescriptor;
import com.sun.enterprise.deployment.Application;
import java.util.Iterator;
import javax.management.MBeanException;
import com.sun.enterprise.Switch;
/**
* Application client loader loads and unloads stand alone Application client module.
*
* @author Sreenivas Munnangi
* @since JDK1.4
*/
class ApplicationClientModuleLoader extends AbstractLoader {
private ApplicationClientDescriptor acDescriptor = null;
static Logger _logger=LogDomains.getLogger(LogDomains.LOADER_LOGGER);
private ApplicationLoaderEventNotifier appLoaderEventNotifier;
/**
* ApplicationClientModuleLoader loads one module.
*
* @param modID the name of the Application client module
* @param parentClassLoader the parent class loader
* @param acModulesManager the application client module mgr
*/
ApplicationClientModuleLoader(String modID, ClassLoader parentClassLoader,
AppclientModulesManager acModulesManager) {
super(modID, parentClassLoader, acModulesManager);
setDescriptor();
try {
this.application = acModulesManager.getDescriptor(modID, parentClassLoader, false);
appLoaderEventNotifier =
ApplicationLoaderEventNotifier.getInstance();
} catch (ConfigException ce) {
_logger.log(Level.SEVERE,"loader.error_while_loading_app_desc",
ce);
}
}
/**
*Loads the app client.
*Although the app client logic is not actually loaded into the app server,
*there may be some components interested in the load operation, so notify
*them.
*
* @param jsr77 create jsr77 mBeans if true
* @return true if load is successful
*/
boolean doLoad(boolean jsr77) {
notifyAppClientEvent(ApplicationClientEvent.BEFORE_APPLICATION_CLIENT_LOAD);
notifyAppClientEvent(ApplicationClientEvent.AFTER_APPLICATION_CLIENT_LOAD);
return true;
}
/**
*Unloads the app client.
*Because no code is actually loaded into the server for app clients, there is
*none to unload. Still, notify any interested listeners.
*
* @param jsr77 delete jsr77 mBeans if true
* @return true if unload is successful
*/
boolean unload(boolean jsr77) {
notifyAppClientEvent(ApplicationClientEvent.BEFORE_APPLICATION_CLIENT_UNLOAD);
configManager.unregisterDescriptor(id);
notifyAppClientEvent(ApplicationClientEvent.AFTER_APPLICATION_CLIENT_UNLOAD);
return true;
}
/**
* Create jsr77 root mBean
*/
void createRootMBean() throws MBeanException {
try {
Switch.getSwitch().getManagementObjectManager().registerAppClient(
acDescriptor,
this.configManager.getInstanceEnvironment().getName(),
this.configManager.getLocation(this.id));
} catch (Exception e) {
throw new MBeanException(e);
}
}
/**
* Delete jsr77 root mBean
*/
void deleteRootMBean() throws MBeanException {
Switch.getSwitch().getManagementObjectManager().unregisterAppClient(
acDescriptor,
this.configManager.getInstanceEnvironment().getName());
}
/**
* Create jsr77 mBeans for ejbs within this module
*/
void createLeafMBeans() throws MBeanException {
return;
}
/**
* Create jsr77 mBeans for ejbs within this module
*/
void createLeafMBean(Descriptor descriptor) throws MBeanException {
return;
}
/**
* Delete jsr77 mBeans for ejbs within this module
*/
void deleteLeafMBeans() throws MBeanException {
return;
}
/**
* Delete jsr77 mBeans for ejbs within this module
*/
void deleteLeafMBean(Descriptor descriptor) throws MBeanException {
return;
}
/**
* Delete jsr77 mBeans for the module and its' components
*/
void deleteLeafAndRootMBeans() throws MBeanException {
deleteLeafMBeans();
deleteRootMBean();
}
/**
* Set state for the root mBean
*/
void setState(int state) throws MBeanException {
return;
}
private void setDescriptor() {
acDescriptor = getApplicationClientDescriptor();
}
private ApplicationClientDescriptor getApplicationClientDescriptor() {
ApplicationClientDescriptor appCD = null;
try {
Application app = configManager.getDescriptor(this.id, null, false);
appCD = (ApplicationClientDescriptor) app.getStandaloneBundleDescriptor();
} catch(ConfigException ex) {
_logger.log(Level.WARNING,"Failed to get the ApplicationClientDescriptor");
}
return appCD;
}
/**
*Notifies interested listeners of the load or unload operation.
*@param the type of event to broadcast
*/
protected void notifyAppClientEvent(int eventType) {
ApplicationClientEvent event = new ApplicationClientEvent(eventType,
getApplication(), getClassLoader(), getConfigContext());
appLoaderEventNotifier.notifyListeners(event);
}
}