001 /* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 018 019 package org.apache.commons.modeler; 020 021 022 import java.io.Serializable; 023 024 import javax.management.Descriptor; 025 import javax.management.modelmbean.ModelMBeanNotificationInfo; 026 027 028 /** 029 * <p>Internal configuration information for a <code>Notification</code> 030 * descriptor.</p> 031 * 032 * @author Craig R. McClanahan 033 * @version $Revision: 480402 $ $Date: 2006-11-29 05:43:23 +0100 (Wed, 29 Nov 2006) $ 034 */ 035 036 public class NotificationInfo extends FeatureInfo implements Serializable { 037 static final long serialVersionUID = -6319885418912650856L; 038 039 // ----------------------------------------------------- Instance Variables 040 041 042 /** 043 * The <code>ModelMBeanNotificationInfo</code> object that corresponds 044 * to this <code>NotificationInfo</code> instance. 045 */ 046 transient ModelMBeanNotificationInfo info = null; 047 protected String notifTypes[] = new String[0]; 048 049 // ------------------------------------------------------------- Properties 050 051 052 /** 053 * Override the <code>description</code> property setter. 054 * 055 * @param description The new description 056 */ 057 public void setDescription(String description) { 058 super.setDescription(description); 059 this.info = null; 060 } 061 062 063 /** 064 * Override the <code>name</code> property setter. 065 * 066 * @param name The new name 067 */ 068 public void setName(String name) { 069 super.setName(name); 070 this.info = null; 071 } 072 073 074 /** 075 * The set of notification types for this MBean. 076 */ 077 public String[] getNotifTypes() { 078 return (this.notifTypes); 079 } 080 081 082 // --------------------------------------------------------- Public Methods 083 084 085 /** 086 * Add a new notification type to the set managed by an MBean. 087 * 088 * @param notifType The new notification type 089 */ 090 public void addNotifType(String notifType) { 091 092 synchronized (notifTypes) { 093 String results[] = new String[notifTypes.length + 1]; 094 System.arraycopy(notifTypes, 0, results, 0, notifTypes.length); 095 results[notifTypes.length] = notifType; 096 notifTypes = results; 097 this.info = null; 098 } 099 100 } 101 102 103 /** 104 * Create and return a <code>ModelMBeanNotificationInfo</code> object that 105 * corresponds to the attribute described by this instance. 106 */ 107 public ModelMBeanNotificationInfo createNotificationInfo() { 108 109 // Return our cached information (if any) 110 if (info != null) 111 return (info); 112 113 // Create and return a new information object 114 info = new ModelMBeanNotificationInfo 115 (getNotifTypes(), getName(), getDescription()); 116 Descriptor descriptor = info.getDescriptor(); 117 addFields(descriptor); 118 info.setDescriptor(descriptor); 119 return (info); 120 121 } 122 123 124 /** 125 * Return a string representation of this notification descriptor. 126 */ 127 public String toString() { 128 129 StringBuffer sb = new StringBuffer("NotificationInfo["); 130 sb.append("name="); 131 sb.append(name); 132 sb.append(", description="); 133 sb.append(description); 134 sb.append(", notifTypes="); 135 sb.append(notifTypes.length); 136 sb.append("]"); 137 return (sb.toString()); 138 139 } 140 141 142 }