org.glassfish.admin.mejb.ListenerRegistry Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of payara-micro Show documentation
Show all versions of payara-micro Show documentation
Micro Distribution of the Payara Project
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 1997-2013 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package org.glassfish.admin.mejb;
import java.rmi.RemoteException;
import java.util.Hashtable;
import javax.management.InstanceNotFoundException;
import javax.management.ListenerNotFoundException;
import javax.management.NotificationFilter;
import javax.management.NotificationListener;
import javax.management.ObjectName;
import javax.management.j2ee.Management;
/**
* ListenerRegistry provides an implementation of ListenerRegistration
* This implementation creates instances of RemoteListenerConnectors which
* are registered on the MEJB on behalf of the local listener.
*
* Note that this cannot possibly work for remote listeners due to MEJBUtility not supporting
* anything but the local MBeanServer.
*
* @author Hans Hrasna
*/
public final class ListenerRegistry implements javax.management.j2ee.ListenerRegistration {
//private static final String OMG_ORB_INIT_PORT_PROPERTY = "org.omg.CORBA.ORBInitialPort";
private static final boolean debug = true;
private static void debug( final String s ) { if ( debug ) { System.out.println(s); } }
private final Hashtable listenerConnectors =
new Hashtable();
private final String serverAddress; // the hostname or ip address of the MEJB
public ListenerRegistry(String ip) {
serverAddress = ip;
}
/**
* Add a listener to a registered managed object.
*
* @param name The name of the managed object on which the listener should be added.
* @param listener The listener object which will handle the notifications emitted by the registered managed object.
* @param filter The filter object. If filter is null, no filtering will be performed before handling notifications.
* @param handback The context to be sent to the listener when a notification is emitted.
*
* @exception InstanceNotFoundException The managed object name provided does not match any of the registered managed objects.
*
*/
public void addNotificationListener(
final ObjectName name,
final NotificationListener listener,
final NotificationFilter filter,
final Object handback)
throws RemoteException {
final String proxyAddress = EventListenerProxy.getEventListenerProxy().getProxyAddress();
try {
debug("ListenerRegistry:addNotificationListener() to " + name);
final RemoteListenerConnector connector = new RemoteListenerConnector(proxyAddress);
getMEJBUtility().addNotificationListener(name, connector, filter, connector.getId());
EventListenerProxy.getEventListenerProxy().addListener(connector.getId(), listener, handback);
listenerConnectors.put(listener, connector);
} catch (final InstanceNotFoundException inf) {
throw new RemoteException(inf.getMessage(), inf);
}
}
/**
* Remove a listener from a registered managed object.
*
* @param name The name of the managed object on which the listener should be removed.
* @param listener The listener object which will handle the notifications emitted by the registered managed object.
* This method will remove all the information related to this listener.
*
* @exception InstanceNotFoundException The managed object name provided does not match any of the registered managed objects.
* @exception ListenerNotFoundException The listener is not registered in the managed object.
*/
public void removeNotificationListener(
final ObjectName name,
final NotificationListener listener)
throws RemoteException {
final EventListenerProxy proxy = EventListenerProxy.getEventListenerProxy();
try {
debug("ListenerRegistry.removeNotificationListener: " + listener + " for " + name);
//debug("ListenerRegistry.listenerProxy = " + listenerConnectors.get(((RemoteListenerConnector) listener).getId()));
final RemoteListenerConnector connector = listenerConnectors.get(listener);
getMEJBUtility().removeNotificationListener(name, connector);
proxy.removeListener(connector.getId());
listenerConnectors.remove(listener);
} catch (final InstanceNotFoundException inf) {
throw new RemoteException(inf.getMessage(), inf);
} catch (final ListenerNotFoundException lnf) {
throw new RemoteException(lnf.getMessage(), lnf);
}
}
private MEJBUtility getMEJBUtility() {
return MEJBUtility.getInstance();
}
}