1 /* |
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2 * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 |
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26 package sun.jvmstat.perfdata.monitor; |
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27 |
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28 import sun.jvmstat.monitor.*; |
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29 import java.nio.IntBuffer; |
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30 |
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31 /** |
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32 * Class for monitoring a PerfData Integer instrument. |
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33 * |
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34 * @author Brian Doherty |
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35 * @since 1.5 |
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36 */ |
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37 public class PerfIntegerMonitor extends AbstractMonitor |
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38 implements IntegerMonitor { |
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39 |
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40 /** |
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41 * The buffer containing the data for the integer instrument. |
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42 */ |
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43 IntBuffer ib; |
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44 |
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45 /** |
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46 * Constructor to create an IntegerMonitor object for the integer |
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47 * instrument represented by the data in the given buffer. |
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48 * |
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49 * @param name the name of the integer instrument |
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50 * @param u the units of measure attribute |
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51 * @param v the variability attribute |
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52 * @param supported support level indicator |
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53 * @param ib the buffer containing the integer instrument data. |
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54 */ |
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55 public PerfIntegerMonitor(String name, Units u, Variability v, |
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56 boolean supported, IntBuffer ib) { |
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57 super(name, u, v, supported); |
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58 this.ib = ib; |
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59 } |
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60 |
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61 /** |
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62 * {@inheritDoc} |
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63 * The object returned contains an Integer object containing the |
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64 * current value of the IntegerInstrument. |
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65 * |
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66 * @return Object - the current value of the IntegerInstrument. The |
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67 * return type is guaranteed to be of type Integer. |
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68 */ |
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69 public Object getValue() { |
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70 return ib.get(0); |
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71 } |
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72 |
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73 /** |
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74 * Return the current value of the IntegerInstrument as an int. |
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75 * |
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76 * @return int - a the current value of the IntegerInstrument. |
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77 */ |
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78 public int intValue() { |
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79 return ib.get(0); |
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80 } |
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81 } |
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