0N/A/*
2362N/A * Copyright (c) 2003, 2004, Oracle and/or its affiliates. All rights reserved.
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2362N/A * published by the Free Software Foundation. Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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0N/A */
0N/A
0N/Apackage sun.management.counter;
0N/A
0N/A/**
0N/A * Provides a typesafe enumeration for describing units of measurement
0N/A * attribute for instrumentation objects.
0N/A *
0N/A * @author Brian Doherty
0N/A */
0N/Apublic class Units implements java.io.Serializable {
0N/A
0N/A /* The enumeration values for this typesafe enumeration must be
0N/A * kept in synchronization with the Units enum in the perfData.hpp file
0N/A * in the HotSpot source base.
0N/A */
0N/A
0N/A private static final int NUNITS=8;
0N/A
0N/A private static Units[] map = new Units[NUNITS];
0N/A
0N/A private final String name;
0N/A private final int value;
0N/A
0N/A /**
0N/A * An Invalid Units value.
0N/A */
0N/A public static final Units INVALID = new Units("Invalid", 0);
0N/A
0N/A /**
0N/A * Units attribute representing unit-less quantities.
0N/A */
0N/A public static final Units NONE = new Units("None", 1);
0N/A
0N/A /**
0N/A * Units attribute representing Bytes.
0N/A */
0N/A public static final Units BYTES = new Units("Bytes", 2);
0N/A
0N/A /**
0N/A * Units attribute representing Ticks.
0N/A */
0N/A public static final Units TICKS = new Units("Ticks", 3);
0N/A
0N/A /**
0N/A * Units attribute representing a count of events.
0N/A */
0N/A public static final Units EVENTS = new Units("Events", 4);
0N/A
0N/A /**
0N/A * Units attribute representing String data. Although not really
0N/A * a unit of measure, this Units value serves to distinguish String
0N/A * instrumentation objects from instrumentation objects of other types.
0N/A */
0N/A public static final Units STRING = new Units("String", 5);
0N/A
0N/A /**
0N/A * Units attribute representing Hertz (frequency).
0N/A */
0N/A public static final Units HERTZ = new Units("Hertz", 6);
0N/A
0N/A /**
0N/A * Returns a string describing this Unit of measurement attribute
0N/A *
0N/A * @return String - a descriptive string for this enum.
0N/A */
0N/A public String toString() {
0N/A return name;
0N/A }
0N/A
0N/A /**
0N/A * Returns the integer representation of this Units attribute
0N/A *
0N/A * @return int - an integer representation of this Units attribute.
0N/A */
0N/A public int intValue() {
0N/A return value;
0N/A }
0N/A
0N/A /**
0N/A * Maps an integer value to its corresponding Units attribute.
0N/A * If the integer value does not have a corresponding Units enum
0N/A * value, then {@link Units#INVALID} is returned.
0N/A *
0N/A * @param value an integer representation of counter Units
0N/A * @return Units - the Units object for the given <code>value</code>
0N/A * or {@link Units#INVALID} if out of range.
0N/A */
0N/A public static Units toUnits(int value) {
0N/A
0N/A if (value < 0 || value >= map.length || map[value] == null) {
0N/A return INVALID;
0N/A }
0N/A
0N/A return map[value];
0N/A }
0N/A
0N/A private Units(String name, int value) {
0N/A this.name = name;
0N/A this.value = value;
0N/A map[value] = this;
0N/A }
0N/A
0N/A private static final long serialVersionUID = 6992337162326171013L;
0N/A}