1 /*

     2  * Copyright (c) 2005, 2008, 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 sun.management;

    27 

    28 import java.lang.management.LockInfo;

    29 import java.lang.management.ThreadInfo;

    30 import javax.management.Attribute;

    31 import javax.management.StandardMBean;

    32 import javax.management.openmbean.CompositeData;

    33 

    34 /**

    35  * This MXBean is used for data conversion from LockInfo

    36  * to CompositeData (its mapped type) or vice versa.

    37  */

    38 class LockDataConverter extends StandardMBean

    39          implements LockDataConverterMXBean {

    40     private LockInfo      lockInfo;

    41     private LockInfo[]    lockedSyncs;

    42 

    43     LockDataConverter() {

    44         super(LockDataConverterMXBean.class, true);

    45         this.lockInfo = null;

    46         this.lockedSyncs = null;

    47     }

    48 

    49     LockDataConverter(ThreadInfo ti) {

    50         super(LockDataConverterMXBean.class, true);

    51         this.lockInfo = ti.getLockInfo();

    52         this.lockedSyncs = ti.getLockedSynchronizers();

    53     }

    54 

    55     public void setLockInfo(LockInfo l) {

    56         this.lockInfo = l;

    57     }

    58 

    59     public LockInfo getLockInfo() {

    60         return this.lockInfo;

    61     }

    62 

    63     public void setLockedSynchronizers(LockInfo[] l) {

    64         this.lockedSyncs = l;

    65     }

    66 

    67     public LockInfo[] getLockedSynchronizers() {

    68         return this.lockedSyncs;

    69     }

    70 

    71     // helper methods

    72     CompositeData toLockInfoCompositeData() {

    73         try {

    74             return (CompositeData) getAttribute("LockInfo");

    75         } catch (Exception e) {

    76             throw new AssertionError(e);

    77         }

    78     }

    79 

    80     CompositeData[] toLockedSynchronizersCompositeData() {

    81         try {

    82             return (CompositeData[]) getAttribute("LockedSynchronizers");

    83         } catch (Exception e) {

    84             throw new AssertionError(e);

    85         }

    86     }

    87 

    88     LockInfo toLockInfo(CompositeData cd) {

    89         try {

    90             setAttribute(new Attribute("LockInfo", cd));

    91         } catch (Exception e) {

    92             throw new AssertionError(e);

    93         }

    94         return getLockInfo();

    95     }

    96 

    97     LockInfo[] toLockedSynchronizers(CompositeData[] cd) {

    98         try {

    99             setAttribute(new Attribute("LockedSynchronizers", cd));

   100         } catch (Exception e) {

   101             throw new AssertionError(e);

   102         }

   103         return getLockedSynchronizers();

   104     }

   105 

   106     static CompositeData toLockInfoCompositeData(LockInfo l) {

   107         LockDataConverter ldc = new LockDataConverter();

   108         ldc.setLockInfo(l);

   109         return ldc.toLockInfoCompositeData();

   110     }

   111 }