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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.tomcat.util.modeler;

import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReadWriteLock;
import java.util.concurrent.locks.ReentrantReadWriteLock;

import javax.management.MBeanNotificationInfo;

/**
 * 

Internal configuration information for a Notification * descriptor.

* * @author Craig R. McClanahan */ public class NotificationInfo extends FeatureInfo { private static final long serialVersionUID = -6319885418912650856L; // ----------------------------------------------------- Instance Variables /** * The ModelMBeanNotificationInfo object that corresponds * to this NotificationInfo instance. */ transient MBeanNotificationInfo info = null; protected String notifTypes[] = new String[0]; protected final ReadWriteLock notifTypesLock = new ReentrantReadWriteLock(); // ------------------------------------------------------------- Properties /** * Override the description property setter. * * @param description The new description */ @Override public void setDescription(String description) { super.setDescription(description); this.info = null; } /** * Override the name property setter. * * @param name The new name */ @Override public void setName(String name) { super.setName(name); this.info = null; } /** * @return the set of notification types for this MBean. */ public String[] getNotifTypes() { Lock readLock = notifTypesLock.readLock(); readLock.lock(); try { return this.notifTypes; } finally { readLock.unlock(); } } // --------------------------------------------------------- Public Methods /** * Add a new notification type to the set managed by an MBean. * * @param notifType The new notification type */ public void addNotifType(String notifType) { Lock writeLock = notifTypesLock.writeLock(); writeLock.lock(); try { String results[] = new String[notifTypes.length + 1]; System.arraycopy(notifTypes, 0, results, 0, notifTypes.length); results[notifTypes.length] = notifType; notifTypes = results; this.info = null; } finally { writeLock.unlock(); } } /** * Create and return a ModelMBeanNotificationInfo object that * corresponds to the attribute described by this instance. * @return the notification info */ public MBeanNotificationInfo createNotificationInfo() { // Return our cached information (if any) if (info != null) { return info; } // Create and return a new information object info = new MBeanNotificationInfo (getNotifTypes(), getName(), getDescription()); //Descriptor descriptor = info.getDescriptor(); //addFields(descriptor); //info.setDescriptor(descriptor); return info; } /** * Return a string representation of this notification descriptor. */ @Override public String toString() { StringBuilder sb = new StringBuilder("NotificationInfo["); sb.append("name="); sb.append(name); sb.append(", description="); sb.append(description); sb.append(", notifTypes="); Lock readLock = notifTypesLock.readLock(); readLock.lock(); try { sb.append(notifTypes.length); } finally { readLock.unlock(); } sb.append(']'); return sb.toString(); } }




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