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| 1 | /* | ||
| 2 | * Copyright (c) 2003, 2004, 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.counter; | ||
| 27 | |||
| 28 | import java.io.IOException; | ||
| 29 | import java.io.ObjectOutputStream; | ||
| 30 | import java.io.ObjectInputStream; | ||
| 31 | |||
| 32 | /** | ||
| 33 | */ | ||
| 34 | public abstract class AbstractCounter implements Counter { | ||
| 35 | |||
| 36 | String name; | ||
| 37 | Units units; | ||
| 38 | Variability variability; | ||
| 39 | int flags; | ||
| 40 | int vectorLength; | ||
| 41 | |||
| 42 | // Flags defined in hotspot implementation | ||
| 43 | class Flags { | ||
| 44 | static final int SUPPORTED = 0x1; | ||
| 45 | } | ||
| 46 | |||
| 47 | protected AbstractCounter(String name, Units units, | ||
| 48 | Variability variability, int flags, | ||
| 49 | int vectorLength) { | ||
| 50 | this.name = name; | ||
| 51 | this.units = units; | ||
| 52 | this.variability = variability; | ||
| 53 | this.flags = flags; | ||
| 54 | this.vectorLength = vectorLength; | ||
| 55 | } | ||
| 56 | |||
| 57 | protected AbstractCounter(String name, Units units, | ||
| 58 | Variability variability, int flags) { | ||
| 59 | this(name, units, variability, flags, 0); | ||
| 60 | } | ||
| 61 | |||
| 62 | /** | ||
| 63 | * Returns the name of the Performance Counter | ||
| 64 | */ | ||
| 65 | public String getName() { | ||
| 66 | return name; | ||
| 67 | } | ||
| 68 | |||
| 69 | /** | ||
| 70 | * Returns the Units for this Performance Counter | ||
| 71 | */ | ||
| 72 | public Units getUnits() { | ||
| 73 | return units; | ||
| 74 | } | ||
| 75 | |||
| 76 | /** | ||
| 77 | * Returns the Variability for this performance Object | ||
| 78 | */ | ||
| 79 | public Variability getVariability() { | ||
| 80 | return variability; | ||
| 81 | } | ||
| 82 | |||
| 83 | /** | ||
| 84 | * Return true if this performance counter is a vector | ||
| 85 | */ | ||
| 86 | public boolean isVector() { | ||
| 87 | return vectorLength > 0; | ||
| 88 | } | ||
| 89 | |||
| 90 | /** | ||
| 91 | * return the length of the vector | ||
| 92 | */ | ||
| 93 | public int getVectorLength() { | ||
| 94 | return vectorLength; | ||
| 95 | } | ||
| 96 | |||
| 97 | public boolean isInternal() { | ||
| 98 | return (flags & Flags.SUPPORTED) == 0; | ||
| 99 | } | ||
| 100 | |||
| 101 | /** | ||
| 102 | * return the flags associated with the counter. | ||
| 103 | */ | ||
| 104 | public int getFlags() { | ||
| 105 | return flags; | ||
| 106 | } | ||
| 107 | |||
| 108 | public abstract Object getValue(); | ||
| 109 | |||
| 110 | public String toString() { | ||
| 111 | String result = getName() + ": " + getValue() + " " + getUnits(); | ||
| 112 | if (isInternal()) { | ||
| 113 | return result + " [INTERNAL]"; | ||
| 114 | } else { | ||
| 115 | return result; | ||
| 116 | } | ||
| 117 | } | ||
| 118 | |||
| 119 | private static final long serialVersionUID = 6992337162326171013L; | ||
| 120 | |||
| 121 | } | ||