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| 1 | +/* | |
| 2 | + * Copyright (c) 1999, 2004, Oracle and/or its affiliates. All rights reserved. | |
| 3 | + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 | + * | |
| 5 | + * This code is free software; you can redistribute it and/or modify it | |
| 6 | + * under the terms of the GNU General Public License version 2 only, as | |
| 7 | + * published by the Free Software Foundation. Oracle designates this | |
| 8 | + * particular file as subject to the "Classpath" exception as provided | |
| 9 | + * by Oracle in the LICENSE file that accompanied this code. | |
| 10 | + * | |
| 11 | + * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 | + * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 | + * accompanied this code). | |
| 16 | + * | |
| 17 | + * You should have received a copy of the GNU General Public License version | |
| 18 | + * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 | + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 | + * | |
| 21 | + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 | + * or visit www.oracle.com if you need additional information or have any | |
| 23 | + * questions. | |
| 24 | + */ | |
| 25 | + | |
| 26 | +package javax.management; | |
| 27 | + | |
| 28 | +// java import | |
| 29 | +import java.io.Serializable; | |
| 30 | + | |
| 31 | +// RI import | |
| 32 | +import javax.management.ObjectName; | |
| 33 | + | |
| 34 | + | |
| 35 | +/** | |
| 36 | + * Used to represent the object name of an MBean and its class name. | |
| 37 | + * If the MBean is a Dynamic MBean the class name should be retrieved from | |
| 38 | + * the <CODE>MBeanInfo</CODE> it provides. | |
| 39 | + * | |
| 40 | + * @since 1.5 | |
| 41 | + */ | |
| 42 | +public class ObjectInstance implements Serializable { | |
| 43 | + | |
| 44 | + | |
| 45 | + /* Serial version */ | |
| 46 | + private static final long serialVersionUID = -4099952623687795850L; | |
| 47 | + | |
| 48 | + /** | |
| 49 | + * @serial Object name. | |
| 50 | + */ | |
| 51 | + private ObjectName name; | |
| 52 | + | |
| 53 | + /** | |
| 54 | + * @serial Class name. | |
| 55 | + */ | |
| 56 | + private String className; | |
| 57 | + | |
| 58 | + /** | |
| 59 | + * Allows an object instance to be created given a string representation of | |
| 60 | + * an object name and the full class name, including the package name. | |
| 61 | + * | |
| 62 | + * @param objectName A string representation of the object name. | |
| 63 | + * @param className The full class name, including the package | |
| 64 | + * name, of the object instance. If the MBean is a Dynamic MBean | |
| 65 | + * the class name corresponds to its {@link | |
| 66 | + * DynamicMBean#getMBeanInfo() | |
| 67 | + * getMBeanInfo()}<code>.getClassName()</code>. | |
| 68 | + * | |
| 69 | + * @exception MalformedObjectNameException The string passed as a | |
| 70 | + * parameter does not have the right format. | |
| 71 | + * | |
| 72 | + */ | |
| 73 | + public ObjectInstance(String objectName, String className) | |
| 74 | + throws MalformedObjectNameException { | |
| 75 | + this(new ObjectName(objectName), className); | |
| 76 | + } | |
| 77 | + | |
| 78 | + /** | |
| 79 | + * Allows an object instance to be created given an object name and | |
| 80 | + * the full class name, including the package name. | |
| 81 | + * | |
| 82 | + * @param objectName The object name. | |
| 83 | + * @param className The full class name, including the package | |
| 84 | + * name, of the object instance. If the MBean is a Dynamic MBean | |
| 85 | + * the class name corresponds to its {@link | |
| 86 | + * DynamicMBean#getMBeanInfo() | |
| 87 | + * getMBeanInfo()}<code>.getClassName()</code>. | |
| 88 | + * If the MBean is a Dynamic MBean the class name should be retrieved | |
| 89 | + * from the <CODE>MBeanInfo</CODE> it provides. | |
| 90 | + * | |
| 91 | + */ | |
| 92 | + public ObjectInstance(ObjectName objectName, String className) { | |
| 93 | + if (objectName.isPattern()) { | |
| 94 | + final IllegalArgumentException iae = | |
| 95 | + new IllegalArgumentException("Invalid name->"+ | |
| 96 | + objectName.toString()); | |
| 97 | + throw new RuntimeOperationsException(iae); | |
| 98 | + } | |
| 99 | + this.name= objectName; | |
| 100 | + this.className= className; | |
| 101 | + } | |
| 102 | + | |
| 103 | + | |
| 104 | + /** | |
| 105 | + * Compares the current object instance with another object instance. | |
| 106 | + * | |
| 107 | + * @param object The object instance that the current object instance is | |
| 108 | + * to be compared with. | |
| 109 | + * | |
| 110 | + * @return True if the two object instances are equal, otherwise false. | |
| 111 | + */ | |
| 112 | + public boolean equals(Object object) { | |
| 113 | + if (!(object instanceof ObjectInstance)) { | |
| 114 | + return false; | |
| 115 | + } | |
| 116 | + ObjectInstance val = (ObjectInstance) object; | |
| 117 | + if (! name.equals(val.getObjectName())) return false; | |
| 118 | + if (className == null) | |
| 119 | + return (val.getClassName() == null); | |
| 120 | + return className.equals(val.getClassName()); | |
| 121 | + } | |
| 122 | + | |
| 123 | + public int hashCode() { | |
| 124 | + final int classHash = ((className==null)?0:className.hashCode()); | |
| 125 | + return name.hashCode() ^ classHash; | |
| 126 | + } | |
| 127 | + | |
| 128 | + /** | |
| 129 | + * Returns the object name part. | |
| 130 | + * | |
| 131 | + * @return the object name. | |
| 132 | + */ | |
| 133 | + public ObjectName getObjectName() { | |
| 134 | + return name; | |
| 135 | + } | |
| 136 | + | |
| 137 | + /** | |
| 138 | + * Returns the class part. | |
| 139 | + * | |
| 140 | + * @return the class name. | |
| 141 | + */ | |
| 142 | + public String getClassName() { | |
| 143 | + return className; | |
| 144 | + } | |
| 145 | + | |
| 146 | + /** | |
| 147 | + * Returns a string representing this ObjectInstance object. The format of this string | |
| 148 | + * is not specified, but users can expect that two ObjectInstances return the same | |
| 149 | + * string if and only if they are equal. | |
| 150 | + */ | |
| 151 | + public String toString() { | |
| 152 | + return getClassName() + "[" + getObjectName() + "]"; | |
| 153 | + } | |
| 154 | + } | |