author | xdono |
Wed, 02 Jul 2008 12:55:45 -0700 | |
changeset 715 | f16baef3a20e |
parent 526 | 61ba2d5ea9da |
child 5506 | 202f599c92aa |
permissions | -rw-r--r-- |
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/* |
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* Copyright 2000-2008 Sun Microsystems, Inc. All Rights Reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Sun designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Sun in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
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* CA 95054 USA or visit www.sun.com if you need additional information or |
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* have any questions. |
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*/ |
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package javax.management.relation; |
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import javax.management.Notification; |
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import javax.management.ObjectName; |
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import java.io.IOException; |
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import java.io.ObjectInputStream; |
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import java.io.ObjectOutputStream; |
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import java.io.ObjectStreamField; |
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import java.security.AccessController; |
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import java.security.PrivilegedAction; |
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import java.util.ArrayList; |
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import java.util.Collections; |
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import java.util.List; |
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import com.sun.jmx.mbeanserver.GetPropertyAction; |
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import static com.sun.jmx.mbeanserver.Util.cast; |
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/** |
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* A notification of a change in the Relation Service. |
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* A RelationNotification notification is sent when a relation is created via |
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* the Relation Service, or an MBean is added as a relation in the Relation |
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* Service, or a role is updated in a relation, or a relation is removed from |
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* the Relation Service. |
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* |
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* <p>The <b>serialVersionUID</b> of this class is <code>-6871117877523310399L</code>. |
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* |
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* @since 1.5 |
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*/ |
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@SuppressWarnings("serial") // serialVersionUID not constant |
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public class RelationNotification extends Notification { |
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// Serialization compatibility stuff: |
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// Two serial forms are supported in this class. The selected form depends |
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// on system property "jmx.serial.form": |
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// - "1.0" for JMX 1.0 |
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// - any other value for JMX 1.1 and higher |
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// |
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// Serial version for old serial form |
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private static final long oldSerialVersionUID = -2126464566505527147L; |
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// |
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// Serial version for new serial form |
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private static final long newSerialVersionUID = -6871117877523310399L; |
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// |
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// Serializable fields in old serial form |
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private static final ObjectStreamField[] oldSerialPersistentFields = |
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{ |
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new ObjectStreamField("myNewRoleValue", ArrayList.class), |
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new ObjectStreamField("myOldRoleValue", ArrayList.class), |
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new ObjectStreamField("myRelId", String.class), |
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new ObjectStreamField("myRelObjName", ObjectName.class), |
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new ObjectStreamField("myRelTypeName", String.class), |
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new ObjectStreamField("myRoleName", String.class), |
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new ObjectStreamField("myUnregMBeanList", ArrayList.class) |
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}; |
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// |
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// Serializable fields in new serial form |
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private static final ObjectStreamField[] newSerialPersistentFields = |
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{ |
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new ObjectStreamField("newRoleValue", List.class), |
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new ObjectStreamField("oldRoleValue", List.class), |
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new ObjectStreamField("relationId", String.class), |
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new ObjectStreamField("relationObjName", ObjectName.class), |
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new ObjectStreamField("relationTypeName", String.class), |
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new ObjectStreamField("roleName", String.class), |
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new ObjectStreamField("unregisterMBeanList", List.class) |
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}; |
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// |
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// Actual serial version and serial form |
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private static final long serialVersionUID; |
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/** |
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* @serialField relationId String Relation identifier of |
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* created/removed/updated relation |
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* @serialField relationTypeName String Relation type name of |
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* created/removed/updated relation |
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* @serialField relationObjName ObjectName {@link ObjectName} of |
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* the relation MBean of created/removed/updated relation (only if |
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* the relation is represented by an MBean) |
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* @serialField unregisterMBeanList List List of {@link |
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* ObjectName}s of referenced MBeans to be unregistered due to |
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* relation removal |
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* @serialField roleName String Name of updated role (only for role update) |
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* @serialField oldRoleValue List Old role value ({@link |
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* ArrayList} of {@link ObjectName}s) (only for role update) |
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* @serialField newRoleValue List New role value ({@link |
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* ArrayList} of {@link ObjectName}s) (only for role update) |
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*/ |
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private static final ObjectStreamField[] serialPersistentFields; |
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private static boolean compat = false; |
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static { |
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try { |
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GetPropertyAction act = new GetPropertyAction("jmx.serial.form"); |
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String form = AccessController.doPrivileged(act); |
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compat = (form != null && form.equals("1.0")); |
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} catch (Exception e) { |
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// OK : Too bad, no compat with 1.0 |
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} |
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if (compat) { |
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serialPersistentFields = oldSerialPersistentFields; |
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serialVersionUID = oldSerialVersionUID; |
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} else { |
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serialPersistentFields = newSerialPersistentFields; |
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serialVersionUID = newSerialVersionUID; |
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} |
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} |
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// |
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// END Serialization compatibility stuff |
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// |
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// Notification types |
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// |
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/** |
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* Type for the creation of an internal relation. |
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*/ |
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public static final String RELATION_BASIC_CREATION = "jmx.relation.creation.basic"; |
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/** |
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* Type for the relation MBean added into the Relation Service. |
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*/ |
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public static final String RELATION_MBEAN_CREATION = "jmx.relation.creation.mbean"; |
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/** |
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* Type for an update of an internal relation. |
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*/ |
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public static final String RELATION_BASIC_UPDATE = "jmx.relation.update.basic"; |
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/** |
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* Type for the update of a relation MBean. |
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*/ |
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public static final String RELATION_MBEAN_UPDATE = "jmx.relation.update.mbean"; |
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/** |
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* Type for the removal from the Relation Service of an internal relation. |
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*/ |
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public static final String RELATION_BASIC_REMOVAL = "jmx.relation.removal.basic"; |
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/** |
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* Type for the removal from the Relation Service of a relation MBean. |
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*/ |
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public static final String RELATION_MBEAN_REMOVAL = "jmx.relation.removal.mbean"; |
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// |
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// Private members |
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// |
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/** |
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* @serial Relation identifier of created/removed/updated relation |
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*/ |
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private String relationId = null; |
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/** |
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* @serial Relation type name of created/removed/updated relation |
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*/ |
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private String relationTypeName = null; |
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/** |
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* @serial {@link ObjectName} of the relation MBean of created/removed/updated relation |
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* (only if the relation is represented by an MBean) |
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*/ |
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private ObjectName relationObjName = null; |
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/** |
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* @serial List of {@link ObjectName}s of referenced MBeans to be unregistered due to |
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* relation removal |
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*/ |
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private List<ObjectName> unregisterMBeanList = null; |
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/** |
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* @serial Name of updated role (only for role update) |
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*/ |
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private String roleName = null; |
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/** |
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* @serial Old role value ({@link ArrayList} of {@link ObjectName}s) (only for role update) |
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*/ |
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private List<ObjectName> oldRoleValue = null; |
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/** |
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* @serial New role value ({@link ArrayList} of {@link ObjectName}s) (only for role update) |
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*/ |
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private List<ObjectName> newRoleValue = null; |
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// |
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// Constructors |
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// |
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/** |
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* Creates a notification for either a relation creation (RelationSupport |
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* object created internally in the Relation Service, or an MBean added as a |
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* relation) or for a relation removal from the Relation Service. |
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* |
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* @param notifType type of the notification; either: |
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* <P>- RELATION_BASIC_CREATION |
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* <P>- RELATION_MBEAN_CREATION |
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* <P>- RELATION_BASIC_REMOVAL |
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* <P>- RELATION_MBEAN_REMOVAL |
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* @param sourceObj source object, sending the notification. This is either |
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* an ObjectName or a RelationService object. In the latter case it must be |
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* the MBean emitting the notification; the MBean Server will rewrite the |
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* source to be the ObjectName under which that MBean is registered. |
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* @param sequence sequence number to identify the notification |
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* @param timeStamp time stamp |
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* @param message human-readable message describing the notification |
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* @param id relation id identifying the relation in the Relation |
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* Service |
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* @param typeName name of the relation type |
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* @param objectName ObjectName of the relation object if it is an MBean |
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* (null for relations internally handled by the Relation Service) |
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* @param unregMBeanList list of ObjectNames of referenced MBeans |
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* expected to be unregistered due to relation removal (only for removal, |
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* due to CIM qualifiers, can be null) |
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* |
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* @exception IllegalArgumentException if: |
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* <P>- no value for the notification type |
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* <P>- the notification type is not RELATION_BASIC_CREATION, |
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* RELATION_MBEAN_CREATION, RELATION_BASIC_REMOVAL or |
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* RELATION_MBEAN_REMOVAL |
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* <P>- no source object |
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* <P>- the source object is not a Relation Service |
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* <P>- no relation id |
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* <P>- no relation type name |
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*/ |
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public RelationNotification(String notifType, |
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Object sourceObj, |
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long sequence, |
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long timeStamp, |
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String message, |
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String id, |
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String typeName, |
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ObjectName objectName, |
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List<ObjectName> unregMBeanList) |
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throws IllegalArgumentException { |
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super(notifType, sourceObj, sequence, timeStamp, message); |
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// Can throw IllegalArgumentException |
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initMembers(1, |
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notifType, |
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sourceObj, |
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sequence, |
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timeStamp, |
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message, |
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id, |
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typeName, |
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objectName, |
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unregMBeanList, |
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null, |
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null, |
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null); |
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return; |
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} |
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/** |
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* Creates a notification for a role update in a relation. |
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* |
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* @param notifType type of the notification; either: |
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* <P>- RELATION_BASIC_UPDATE |
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* <P>- RELATION_MBEAN_UPDATE |
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* @param sourceObj source object, sending the notification. This is either |
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* an ObjectName or a RelationService object. In the latter case it must be |
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* the MBean emitting the notification; the MBean Server will rewrite the |
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* source to be the ObjectName under which that MBean is registered. |
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* @param sequence sequence number to identify the notification |
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* @param timeStamp time stamp |
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* @param message human-readable message describing the notification |
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* @param id relation id identifying the relation in the Relation |
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* Service |
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* @param typeName name of the relation type |
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* @param objectName ObjectName of the relation object if it is an MBean |
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* (null for relations internally handled by the Relation Service) |
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* @param name name of the updated role |
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* @param newValue new role value (List of ObjectName objects) |
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* @param oldValue old role value (List of ObjectName objects) |
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* |
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* @exception IllegalArgumentException if null parameter |
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*/ |
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public RelationNotification(String notifType, |
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Object sourceObj, |
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long sequence, |
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long timeStamp, |
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String message, |
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String id, |
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String typeName, |
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ObjectName objectName, |
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String name, |
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List<ObjectName> newValue, |
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List<ObjectName> oldValue |
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) |
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throws IllegalArgumentException { |
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super(notifType, sourceObj, sequence, timeStamp, message); |
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// Can throw IllegalArgumentException |
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initMembers(2, |
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notifType, |
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sourceObj, |
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sequence, |
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timeStamp, |
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message, |
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id, |
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typeName, |
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objectName, |
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null, |
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name, |
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newValue, |
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oldValue); |
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return; |
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} |
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// |
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// Accessors |
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// |
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/** |
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* Returns the relation identifier of created/removed/updated relation. |
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* |
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* @return the relation id. |
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*/ |
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public String getRelationId() { |
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return relationId; |
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} |
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/** |
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* Returns the relation type name of created/removed/updated relation. |
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* |
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* @return the relation type name. |
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*/ |
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public String getRelationTypeName() { |
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return relationTypeName; |
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} |
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/** |
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* Returns the ObjectName of the |
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* created/removed/updated relation. |
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* |
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* @return the ObjectName if the relation is an MBean, otherwise null. |
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*/ |
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public ObjectName getObjectName() { |
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return relationObjName; |
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} |
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/** |
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* Returns the list of ObjectNames of MBeans expected to be unregistered |
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* due to a relation removal (only for relation removal). |
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* |
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* @return a {@link List} of {@link ObjectName}. |
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*/ |
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public List<ObjectName> getMBeansToUnregister() { |
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526
61ba2d5ea9da
6701459: Synchronization bug pattern found in javax.management.relation.RelationService
emcmanus
parents:
2
diff
changeset
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List<ObjectName> result; |
2 | 373 |
if (unregisterMBeanList != null) { |
374 |
result = new ArrayList<ObjectName>(unregisterMBeanList); |
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} else { |
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result = Collections.emptyList(); |
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} |
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return result; |
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} |
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/** |
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* Returns name of updated role of updated relation (only for role update). |
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* |
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* @return the name of the updated role. |
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*/ |
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386 |
public String getRoleName() { |
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String result = null; |
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if (roleName != null) { |
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result = roleName; |
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} |
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return result; |
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} |
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394 |
/** |
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* Returns old value of updated role (only for role update). |
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* |
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* @return the old value of the updated role. |
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*/ |
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399 |
public List<ObjectName> getOldRoleValue() { |
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526
61ba2d5ea9da
6701459: Synchronization bug pattern found in javax.management.relation.RelationService
emcmanus
parents:
2
diff
changeset
|
400 |
List<ObjectName> result; |
2 | 401 |
if (oldRoleValue != null) { |
402 |
result = new ArrayList<ObjectName>(oldRoleValue); |
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} else { |
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result = Collections.emptyList(); |
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} |
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return result; |
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407 |
} |
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408 |
||
409 |
/** |
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410 |
* Returns new value of updated role (only for role update). |
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* |
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412 |
* @return the new value of the updated role. |
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413 |
*/ |
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414 |
public List<ObjectName> getNewRoleValue() { |
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526
61ba2d5ea9da
6701459: Synchronization bug pattern found in javax.management.relation.RelationService
emcmanus
parents:
2
diff
changeset
|
415 |
List<ObjectName> result; |
2 | 416 |
if (newRoleValue != null) { |
417 |
result = new ArrayList<ObjectName>(newRoleValue); |
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418 |
} else { |
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result = Collections.emptyList(); |
|
420 |
} |
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421 |
return result; |
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422 |
} |
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423 |
||
424 |
// |
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425 |
// Misc |
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426 |
// |
|
427 |
||
428 |
// Initializes members |
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429 |
// |
|
430 |
// -param notifKind 1 for creation/removal, 2 for update |
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431 |
// -param notifType type of the notification; either: |
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432 |
// - RELATION_BASIC_UPDATE |
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433 |
// - RELATION_MBEAN_UPDATE |
|
434 |
// for an update, or: |
|
435 |
// - RELATION_BASIC_CREATION |
|
436 |
// - RELATION_MBEAN_CREATION |
|
437 |
// - RELATION_BASIC_REMOVAL |
|
438 |
// - RELATION_MBEAN_REMOVAL |
|
439 |
// for a creation or removal |
|
440 |
// -param sourceObj source object, sending the notification. Will always |
|
441 |
// be a RelationService object. |
|
442 |
// -param sequence sequence number to identify the notification |
|
443 |
// -param timeStamp time stamp |
|
444 |
// -param message human-readable message describing the notification |
|
445 |
// -param id relation id identifying the relation in the Relation |
|
446 |
// Service |
|
447 |
// -param typeName name of the relation type |
|
448 |
// -param objectName ObjectName of the relation object if it is an MBean |
|
449 |
// (null for relations internally handled by the Relation Service) |
|
450 |
// -param unregMBeanList list of ObjectNames of MBeans expected to be |
|
451 |
// removed due to relation removal |
|
452 |
// -param name name of the updated role |
|
453 |
// -param newValue new value (List of ObjectName objects) |
|
454 |
// -param oldValue old value (List of ObjectName objects) |
|
455 |
// |
|
456 |
// -exception IllegalArgumentException if: |
|
457 |
// - no value for the notification type |
|
458 |
// - incorrect notification type |
|
459 |
// - no source object |
|
460 |
// - the source object is not a Relation Service |
|
461 |
// - no relation id |
|
462 |
// - no relation type name |
|
463 |
// - no role name (for role update) |
|
464 |
// - no role old value (for role update) |
|
465 |
// - no role new value (for role update) |
|
466 |
private void initMembers(int notifKind, |
|
467 |
String notifType, |
|
468 |
Object sourceObj, |
|
469 |
long sequence, |
|
470 |
long timeStamp, |
|
471 |
String message, |
|
472 |
String id, |
|
473 |
String typeName, |
|
474 |
ObjectName objectName, |
|
475 |
List<ObjectName> unregMBeanList, |
|
476 |
String name, |
|
477 |
List<ObjectName> newValue, |
|
478 |
List<ObjectName> oldValue) |
|
479 |
throws IllegalArgumentException { |
|
480 |
||
481 |
boolean badInitFlg = false; |
|
482 |
||
483 |
if (notifType == null || |
|
484 |
sourceObj == null || |
|
485 |
(!(sourceObj instanceof RelationService) && |
|
486 |
!(sourceObj instanceof ObjectName)) || |
|
487 |
id == null || |
|
488 |
typeName == null) { |
|
489 |
||
490 |
badInitFlg = true; |
|
491 |
} |
|
492 |
||
493 |
if (notifKind == 1) { |
|
494 |
||
495 |
if ((!(notifType.equals(RelationNotification.RELATION_BASIC_CREATION))) |
|
496 |
&& |
|
497 |
(!(notifType.equals(RelationNotification.RELATION_MBEAN_CREATION))) |
|
498 |
&& |
|
499 |
(!(notifType.equals(RelationNotification.RELATION_BASIC_REMOVAL))) |
|
500 |
&& |
|
501 |
(!(notifType.equals(RelationNotification.RELATION_MBEAN_REMOVAL))) |
|
502 |
) { |
|
503 |
||
504 |
// Creation/removal |
|
505 |
badInitFlg = true; |
|
506 |
} |
|
507 |
||
508 |
} else if (notifKind == 2) { |
|
509 |
||
510 |
if (((!(notifType.equals(RelationNotification.RELATION_BASIC_UPDATE))) |
|
511 |
&& |
|
512 |
(!(notifType.equals(RelationNotification.RELATION_MBEAN_UPDATE)))) |
|
513 |
|| name == null || |
|
514 |
oldValue == null || |
|
515 |
newValue == null) { |
|
516 |
||
517 |
// Role update |
|
518 |
badInitFlg = true; |
|
519 |
} |
|
520 |
} |
|
521 |
||
522 |
if (badInitFlg) { |
|
523 |
String excMsg = "Invalid parameter."; |
|
524 |
throw new IllegalArgumentException(excMsg); |
|
525 |
} |
|
526 |
||
527 |
relationId = id; |
|
528 |
relationTypeName = typeName; |
|
529 |
relationObjName = objectName; |
|
530 |
if (unregMBeanList != null) { |
|
531 |
unregisterMBeanList = new ArrayList<ObjectName>(unregMBeanList); |
|
532 |
} |
|
533 |
if (name != null) { |
|
534 |
roleName = name; |
|
535 |
} |
|
536 |
if (oldValue != null) { |
|
537 |
oldRoleValue = new ArrayList<ObjectName>(oldValue); |
|
538 |
} |
|
539 |
if (newValue != null) { |
|
540 |
newRoleValue = new ArrayList<ObjectName>(newValue); |
|
541 |
} |
|
542 |
return; |
|
543 |
} |
|
544 |
||
545 |
/** |
|
546 |
* Deserializes a {@link RelationNotification} from an {@link ObjectInputStream}. |
|
547 |
*/ |
|
548 |
private void readObject(ObjectInputStream in) |
|
549 |
throws IOException, ClassNotFoundException { |
|
550 |
if (compat) |
|
551 |
{ |
|
552 |
// Read an object serialized in the old serial form |
|
553 |
// |
|
554 |
ObjectInputStream.GetField fields = in.readFields(); |
|
555 |
newRoleValue = cast(fields.get("myNewRoleValue", null)); |
|
556 |
if (fields.defaulted("myNewRoleValue")) |
|
557 |
{ |
|
558 |
throw new NullPointerException("newRoleValue"); |
|
559 |
} |
|
560 |
oldRoleValue = cast(fields.get("myOldRoleValue", null)); |
|
561 |
if (fields.defaulted("myOldRoleValue")) |
|
562 |
{ |
|
563 |
throw new NullPointerException("oldRoleValue"); |
|
564 |
} |
|
565 |
relationId = (String) fields.get("myRelId", null); |
|
566 |
if (fields.defaulted("myRelId")) |
|
567 |
{ |
|
568 |
throw new NullPointerException("relationId"); |
|
569 |
} |
|
570 |
relationObjName = (ObjectName) fields.get("myRelObjName", null); |
|
571 |
if (fields.defaulted("myRelObjName")) |
|
572 |
{ |
|
573 |
throw new NullPointerException("relationObjName"); |
|
574 |
} |
|
575 |
relationTypeName = (String) fields.get("myRelTypeName", null); |
|
576 |
if (fields.defaulted("myRelTypeName")) |
|
577 |
{ |
|
578 |
throw new NullPointerException("relationTypeName"); |
|
579 |
} |
|
580 |
roleName = (String) fields.get("myRoleName", null); |
|
581 |
if (fields.defaulted("myRoleName")) |
|
582 |
{ |
|
583 |
throw new NullPointerException("roleName"); |
|
584 |
} |
|
585 |
unregisterMBeanList = cast(fields.get("myUnregMBeanList", null)); |
|
586 |
if (fields.defaulted("myUnregMBeanList")) |
|
587 |
{ |
|
588 |
throw new NullPointerException("unregisterMBeanList"); |
|
589 |
} |
|
590 |
} |
|
591 |
else |
|
592 |
{ |
|
593 |
// Read an object serialized in the new serial form |
|
594 |
// |
|
595 |
in.defaultReadObject(); |
|
596 |
} |
|
597 |
} |
|
598 |
||
599 |
||
600 |
/** |
|
601 |
* Serializes a {@link RelationNotification} to an {@link ObjectOutputStream}. |
|
602 |
*/ |
|
603 |
private void writeObject(ObjectOutputStream out) |
|
604 |
throws IOException { |
|
605 |
if (compat) |
|
606 |
{ |
|
607 |
// Serializes this instance in the old serial form |
|
608 |
// |
|
609 |
ObjectOutputStream.PutField fields = out.putFields(); |
|
610 |
fields.put("myNewRoleValue", newRoleValue); |
|
611 |
fields.put("myOldRoleValue", oldRoleValue); |
|
612 |
fields.put("myRelId", relationId); |
|
613 |
fields.put("myRelObjName", relationObjName); |
|
614 |
fields.put("myRelTypeName", relationTypeName); |
|
615 |
fields.put("myRoleName",roleName); |
|
616 |
fields.put("myUnregMBeanList", unregisterMBeanList); |
|
617 |
out.writeFields(); |
|
618 |
} |
|
619 |
else |
|
620 |
{ |
|
621 |
// Serializes this instance in the new serial form |
|
622 |
// |
|
623 |
out.defaultWriteObject(); |
|
624 |
} |
|
625 |
} |
|
626 |
} |