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My first initial commit with all of mine experimental changes.

Dmitry Kabak (userdima committed 13 years ago

Commit d37b88d1 parent 3f5b46618352 files · +2598093 −-8690Browse files

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1/*
2 * Copyright (c) 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
26package sun.tools.jstat;
27
28import java.util.*;
29
30/**
31 * A typesafe enumeration for describing data scaling semantics
32 *
33 * @author Brian Doherty
34 * @since 1.5
35 */
36public class Scale {
37 private static int nextOrdinal = 0;
38 private static HashMap<String, Scale> map = new HashMap<String, Scale>();
39
40 private final String name;
41 private final int ordinal = nextOrdinal++;
42 private final double factor;
43
44 private Scale(String name, double factor) {
45 this.name = name;
46 this.factor = factor;
47 assert !map.containsKey(name);
48 map.put(name, this);
49 }
50
51 /**
52 * Scale representing a no scaling
53 */
54 public static final Scale RAW = new Scale("raw", 1);
55
56 /**
57 * Scale representing a percent scaling
58 */
59 public static final Scale PERCENT = new Scale("percent", 1/100);
60
61 /**
62 * Scale representing a kilo scaling
63 */
64 public static final Scale KILO = new Scale("K", 1024);
65
66 /**
67 * Scale representing a mega scaling
68 */
69 public static final Scale MEGA = new Scale("M", 1024*1024);
70
71 /**
72 * Scale representing a giga scaling
73 */
74 public static final Scale GIGA = new Scale("G", 1024*1024*1024);
75
76 /**
77 * Scale representing a tera scaling
78 */
79 public static final Scale TERA = new Scale("T", 1024*1024*1024*1024);
80
81 /**
82 * Scale representing a tera scaling
83 */
84 public static final Scale PETA = new Scale("P", 1024*1024*1024*1024*1024);
85
86 /**
87 * Scale representing a pico scaling
88 */
89 public static final Scale PICO = new Scale("p", 10.0E-12);
90
91 /**
92 * Scale representing a nano scaling
93 */
94 public static final Scale NANO = new Scale("n", 10.0E-9);
95
96 /**
97 * Scale representing a micro scaling
98 */
99 public static final Scale MICRO = new Scale("u", 10.0E-6);
100
101 /**
102 * Scale representing a milli scaling
103 */
104 public static final Scale MILLI = new Scale("m", 10.0E-3);
105
106 /**
107 * Scale representing a picosecond scaling
108 */
109 public static final Scale PSEC = new Scale("ps", 10.0E-12);
110
111 /**
112 * Scale representing a nanosecond scaling
113 */
114 public static final Scale NSEC = new Scale("ns", 10.0E-9);
115
116 /**
117 * Scale representing a microsecond scaling
118 */
119 public static final Scale USEC = new Scale("us", 10.0E-6);
120
121 /**
122 * Scale representing a millisecond scaling
123 */
124 public static final Scale MSEC = new Scale("ms", 10.0E-3);
125
126 /**
127 * Scale representing a second scaling
128 */
129 public static final Scale SEC = new Scale("s", 1);
130 public static final Scale SEC2 = new Scale("sec", 1);
131
132 /**
133 * Scale representing a minutes scaling
134 */
135 public static final Scale MINUTES = new Scale("min", 1/60.0);
136
137 /**
138 * Scale representing a hours scaling
139 */
140 public static final Scale HOUR = new Scale("h", 1/(60.0*60.0));
141 public static final Scale HOUR2 = new Scale("hour", 1/(60.0*60.0));
142
143 /**
144 * Returns the scaling factor of this Scale object
145 *
146 * @return the scaling factor of this Scale object
147 */
148 public double getFactor() {
149 return factor;
150 }
151
152 /**
153 * Returns the string representation of this Scale object.
154 * The string representation is the name of the Scale object.
155 *
156 * @return the string representation of this Scale object
157 */
158 public String toString() {
159 return name;
160 }
161
162 /**
163 * Maps a string to its corresponding Scale object.
164 *
165 * @param s a string to match against Scale objects.
166 * @return The Scale object matching the given string.
167 */
168 public static Scale toScale(String s) {
169 return map.get(s);
170 }
171
172 /**
173 * Returns an enumeration of the keys for this enumerated type
174 *
175 * @param s an string to match against Scale objects.
176 * @return The Scale object matching the given string.
177 */
178 protected static Set keySet() {
179 return map.keySet();
180 }
181
182 protected double scale(double value) {
183 return value/factor;
184 }
185}