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.IntBuffer; 30 31 /** 32 * Class for monitoring a PerfData Integer instrument. 33 * 34 * @author Brian Doherty 35 * @since 1.5 36 */ 37 public class PerfIntegerMonitor extends AbstractMonitor 38 implements IntegerMonitor { 39 40 /** 41 * The buffer containing the data for the integer instrument. 42 */ 43 IntBuffer ib; 44 45 /** 46 * Constructor to create an IntegerMonitor object for the integer 47 * instrument represented by the data in the given buffer. 48 * 49 * @param name the name of the integer instrument 50 * @param u the units of measure attribute 51 * @param v the variability attribute 52 * @param supported support level indicator 53 * @param ib the buffer containing the integer instrument data. 54 */ 55 public PerfIntegerMonitor(String name, Units u, Variability v, 56 boolean supported, IntBuffer ib) { 57 super(name, u, v, supported); 58 this.ib = ib; 59 } 60 61 /** 62 * {@inheritDoc} 63 * The object returned contains an Integer object containing the 64 * current value of the IntegerInstrument. 65 * 66 * @return Object - the current value of the the IntegerInstrument. The 67 * return type is guaranteed to be of type Integer. 68 */ 69 public Object getValue() { 70 return new Integer(ib.get(0)); 71 } 72 73 /** 74 * Return the current value of the IntegerInstrument as an int. 75 * 76 * @return int - a the current value of the IntegerInstrument. 77 */ 78 public int intValue() { 79 return ib.get(0); 80 } 81 }