01: /*
02: * Copyright 2000-2004 Sun Microsystems, Inc. All Rights Reserved.
03: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
04: *
05: * This code is free software; you can redistribute it and/or modify it
06: * under the terms of the GNU General Public License version 2 only, as
07: * published by the Free Software Foundation. Sun designates this
08: * particular file as subject to the "Classpath" exception as provided
09: * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22: * CA 95054 USA or visit www.sun.com if you need additional information or
23: * have any questions.
24: */
25:
26: package sun.tools.javazic;
27:
28: import java.util.ArrayList;
29: import java.util.HashMap;
30: import java.util.List;
31: import java.util.Map;
32:
33: /**
34: * Month enum handles month related manipulation.
35: *
36: * @since 1.4
37: */
38: enum Month {
39: JANUARY("Jan"), FEBRUARY("Feb"), MARCH("Mar"), APRIL("Apr"), MAY(
40: "May"), JUNE("Jun"), JULY("Jul"), AUGUST("Aug"), SEPTEMBER(
41: "Sep"), OCTOBER("Oct"), NOVEMBER("Nov"), DECEMBER("Dec");
42:
43: private final String abbr;
44:
45: private static final Map<String, Month> abbreviations = new HashMap<String, Month>(
46: 12);
47:
48: static {
49: for (Month m : Month.values()) {
50: abbreviations.put(m.abbr, m);
51: }
52: }
53:
54: private Month(String abbr) {
55: this .abbr = abbr;
56: }
57:
58: int value() {
59: return ordinal() + 1;
60: }
61:
62: /**
63: * Parses the specified string as a month abbreviation.
64: * @param name the month abbreviation
65: * @return the Month value
66: */
67: static Month parse(String name) {
68: Month m = abbreviations.get(name);
69: if (m != null) {
70: return m;
71: }
72: return null;
73: }
74:
75: /**
76: * @param month the nunmth number (1-based)
77: * @return the month name in uppercase of the specified month
78: */
79: static String toString(int month) {
80: if (month >= JANUARY.value() && month <= DECEMBER.value()) {
81: return "Calendar." + Month.values()[month - 1];
82: }
83: throw new IllegalArgumentException("wrong month number: "
84: + month);
85: }
86: }
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