1 /*

     2  * Copyright (c) 2004, 2010, 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.jvmstat.perfdata.monitor;

    27 

    28 import sun.jvmstat.monitor.*;

    29 import java.nio.ByteBuffer;

    30 

    31 /**

    32  *

    33  * Class for monitoring a variable PerfData String instrument.

    34  * The current value of a variable string instrument changes over time.

    35  *

    36  * @author Brian Doherty

    37  * @since 1.5

    38  */

    39 public class PerfStringVariableMonitor extends PerfStringMonitor {

    40 

    41     /**

    42      * Constructor to create a StringMonitor object for the variable string

    43      * instrument represented by the data in the given buffer.

    44      *

    45      * @param name the name of the string instrument

    46      * @param supported support level indicator

    47      * @param bb the buffer containing the string instrument data.

    48      */

    49     public PerfStringVariableMonitor(String name, boolean supported,

    50                                      ByteBuffer bb) {

    51         this(name, supported, bb, bb.limit());

    52     }

    53 

    54     /**

    55      * Constructor to create a StringMonitor object for the variable

    56      * string instrument represented by the data in the given buffer.

    57      *

    58      * @param name the name of the string instrument

    59      * @param bb the buffer containing the string instrument data.

    60      * @param supported support level indicator

    61      * @param maxLength the maximum length of the string data.

    62      */

    63     public PerfStringVariableMonitor(String name, boolean supported,

    64                                      ByteBuffer bb, int maxLength) {

    65         // account for the null terminator by adding 1 to maxLength

    66         super(name, Variability.VARIABLE, supported, bb, maxLength+1);

    67     }

    68 }