| /* |
| * Copyright (c) 2004, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package sun.tools.jstat; |
| |
| import java.util.*; |
| |
| /** |
| * A typesafe enumeration for describing data scaling semantics |
| * |
| * @author Brian Doherty |
| * @since 1.5 |
| */ |
| public class Scale { |
| private static int nextOrdinal = 0; |
| private static HashMap<String, Scale> map = new HashMap<String, Scale>(); |
| |
| private final String name; |
| private final int ordinal = nextOrdinal++; |
| private final double factor; |
| |
| private Scale(String name, double factor) { |
| this.name = name; |
| this.factor = factor; |
| assert !map.containsKey(name); |
| map.put(name, this); |
| } |
| |
| /** |
| * Scale representing a no scaling |
| */ |
| public static final Scale RAW = new Scale("raw", 1); |
| |
| /** |
| * Scale representing a percent scaling |
| */ |
| public static final Scale PERCENT = new Scale("percent", 1/100); |
| |
| /** |
| * Scale representing a kilo scaling |
| */ |
| public static final Scale KILO = new Scale("K", 1024); |
| |
| /** |
| * Scale representing a mega scaling |
| */ |
| public static final Scale MEGA = new Scale("M", 1024*1024); |
| |
| /** |
| * Scale representing a giga scaling |
| */ |
| public static final Scale GIGA = new Scale("G", 1024*1024*1024); |
| |
| /** |
| * Scale representing a tera scaling |
| */ |
| public static final Scale TERA = new Scale("T", 1024*1024*1024*1024); |
| |
| /** |
| * Scale representing a tera scaling |
| */ |
| public static final Scale PETA = new Scale("P", 1024*1024*1024*1024*1024); |
| |
| /** |
| * Scale representing a pico scaling |
| */ |
| public static final Scale PICO = new Scale("p", 10.0E-12); |
| |
| /** |
| * Scale representing a nano scaling |
| */ |
| public static final Scale NANO = new Scale("n", 10.0E-9); |
| |
| /** |
| * Scale representing a micro scaling |
| */ |
| public static final Scale MICRO = new Scale("u", 10.0E-6); |
| |
| /** |
| * Scale representing a milli scaling |
| */ |
| public static final Scale MILLI = new Scale("m", 10.0E-3); |
| |
| /** |
| * Scale representing a picosecond scaling |
| */ |
| public static final Scale PSEC = new Scale("ps", 10.0E-12); |
| |
| /** |
| * Scale representing a nanosecond scaling |
| */ |
| public static final Scale NSEC = new Scale("ns", 10.0E-9); |
| |
| /** |
| * Scale representing a microsecond scaling |
| */ |
| public static final Scale USEC = new Scale("us", 10.0E-6); |
| |
| /** |
| * Scale representing a millisecond scaling |
| */ |
| public static final Scale MSEC = new Scale("ms", 10.0E-3); |
| |
| /** |
| * Scale representing a second scaling |
| */ |
| public static final Scale SEC = new Scale("s", 1); |
| public static final Scale SEC2 = new Scale("sec", 1); |
| |
| /** |
| * Scale representing a minutes scaling |
| */ |
| public static final Scale MINUTES = new Scale("min", 1/60.0); |
| |
| /** |
| * Scale representing a hours scaling |
| */ |
| public static final Scale HOUR = new Scale("h", 1/(60.0*60.0)); |
| public static final Scale HOUR2 = new Scale("hour", 1/(60.0*60.0)); |
| |
| /** |
| * Returns the scaling factor of this Scale object |
| * |
| * @return the scaling factor of this Scale object |
| */ |
| public double getFactor() { |
| return factor; |
| } |
| |
| /** |
| * Returns the string representation of this Scale object. |
| * The string representation is the name of the Scale object. |
| * |
| * @return the string representation of this Scale object |
| */ |
| public String toString() { |
| return name; |
| } |
| |
| /** |
| * Maps a string to its corresponding Scale object. |
| * |
| * @param s a string to match against Scale objects. |
| * @return The Scale object matching the given string. |
| */ |
| public static Scale toScale(String s) { |
| return map.get(s); |
| } |
| |
| /** |
| * Returns an enumeration of the keys for this enumerated type |
| * |
| * @param s an string to match against Scale objects. |
| * @return The Scale object matching the given string. |
| */ |
| protected static Set<String> keySet() { |
| return map.keySet(); |
| } |
| |
| protected double scale(double value) { |
| return value/factor; |
| } |
| } |