org.glassfish.admin.amx.util.jmx.NotificationBuilder Maven / Gradle / Ivy
Show all versions of payara-micro Show documentation
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 1997-2010 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.amx.util.jmx;
import javax.management.Notification;
import java.io.Serializable;
import java.util.HashMap;
import java.util.Map;
/**
Base class for building AMX Notifications. AMX Notifications
all place a Map in the userData field. This class takes care
of building Notifications with correct time stamp, sequence number,
etc. It also enforces certain conventions.
A convenience routine is provided for adding additional fields to
the Map--putMapData().
*/
public class NotificationBuilder
{
private long mSequenceNumber = 0;
private final String mNotificationType;
private final Object mSource;
protected synchronized long nextSequenceNumber()
{
return (mSequenceNumber++);
}
public NotificationBuilder(
final String notificationType,
final Object source)
{
mNotificationType = notificationType;
mSource = source;
}
public final String getNotificationType()
{
return (mNotificationType);
}
public final Object getSource()
{
return (mSource);
}
protected final long now()
{
return (System.currentTimeMillis());
}
/**
Build a new Notification with an existing Map.
*/
public Notification buildNewWithMap(
final String message,
final Map userDataMap)
{
final Notification notif = new Notification(
mNotificationType,
mSource,
nextSequenceNumber(),
now(),
message);
if (userDataMap != null)
{
notif.setUserData(userDataMap);
}
else
{
notif.setUserData(new HashMap());
}
return (notif);
}
/**
Build a new Notification without any values in its Map
and no message.
*/
public Notification buildNew()
{
return buildNew(mNotificationType);
}
/**
Build a new Notification without any values in its Map.
@param message
*/
public Notification buildNew(final String message)
{
return buildNewWithMap(message, null);
}
/**
Build a new Notification with one key/value for the Map.
public Notification
buildNew(
final String key,
final Serializable value )
{
if ( value instanceof Map )
{
throw new IllegalArgumentException("use buildNewWithMap" );
}
final Notification notif = buildNew();
if ( key != null )
{
putMapData( notif, key, value );
}
return( notif );
}
*/
/**
Build a new Notification with one key/value for the Map.
public Notification
buildNew(
final String key,
final Serializable value,
final String message )
{
final Notification notif = buildNew( message );
if ( key != null )
{
putMapData( notif, key, value );
}
return( notif );
}
*/
/**
Put a single key/value pair into the user data Map.
*/
public static final void putMapData(
final Notification notif,
final String keyToInsert,
final Serializable valueToInsert)
{
final Map userData =
JMXUtil.getUserDataMapString_Serializable(notif);
userData.put(keyToInsert, valueToInsert);
}
/**
Put all key/value pairs into the user data Map.
*/
public static final void putAllMapData(
final Notification notif,
final Map additionalUserData)
{
final Map userData =
JMXUtil.getUserDataMapString_Serializable(notif);
userData.putAll(additionalUserData);
}
}