01: /*
02: * Copyright 2004 Sun Microsystems, Inc. All Rights Reserved.
03: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
04: *
05: * This code is free software; you can redistribute it and/or modify it
06: * under the terms of the GNU General Public License version 2 only, as
07: * published by the Free Software Foundation. Sun designates this
08: * particular file as subject to the "Classpath" exception as provided
09: * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22: * CA 95054 USA or visit www.sun.com if you need additional information or
23: * have any questions.
24: */
25:
26: package sun.jvmstat.perfdata.monitor;
27:
28: import sun.jvmstat.monitor.*;
29: import sun.management.counter.Variability;
30: import java.nio.ByteBuffer;
31:
32: /**
33: *
34: * Class for monitoring a variable PerfData String instrument.
35: * The current value of a variable string instrument changes over time.
36: *
37: * @author Brian Doherty
38: * @version 1.8, 05/05/07
39: * @since 1.5
40: */
41: public class PerfStringVariableMonitor extends PerfStringMonitor {
42:
43: /**
44: * Constructor to create a StringMonitor object for the variable string
45: * instrument represented by the data in the given buffer.
46: *
47: * @param name the name of the string instrument
48: * @param supported support level indicator
49: * @param bb the buffer containing the string instrument data.
50: */
51: public PerfStringVariableMonitor(String name, boolean supported,
52: ByteBuffer bb) {
53: this (name, supported, bb, bb.limit());
54: }
55:
56: /**
57: * Constructor to create a StringMonitor object for the variable
58: * string instrument represented by the data in the given buffer.
59: *
60: * @param name the name of the string instrument
61: * @param bb the buffer containing the string instrument data.
62: * @param supported support level indicator
63: * @param maxLength the maximum length of the string data.
64: */
65: public PerfStringVariableMonitor(String name, boolean supported,
66: ByteBuffer bb, int maxLength) {
67: // account for the null terminator by adding 1 to maxLength
68: super (name, Variability.VARIABLE, supported, bb, maxLength + 1);
69: }
70: }
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