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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

Showing the changes to java/pkg/sun/tools/jstat/Scale.java (1 of 18352 files). Show all

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java/pkg/sun/tools/jstat/Scale.java+185−0
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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+
26+package sun.tools.jstat;
27+
28+import java.util.*;
29+
30+/**
31+ * A typesafe enumeration for describing data scaling semantics
32+ *
33+ * @author Brian Doherty
34+ * @since 1.5
35+ */
36+public 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+}