1 /*
2 * Copyright (c) 2000, 2013, 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 import java.io.BufferedWriter;
27 import java.io.File;
28 import java.io.FileWriter;
29 import java.io.IOException;
30 import java.util.HashMap;
31 import java.util.List;
32 import java.util.Map;
33 import java.util.Set;
34 import java.util.SortedMap;
35 import java.util.TreeMap;
36 import java.util.TreeSet;
37
38 /**
39 * <code>Simple</code> generates TimeZoneData, which had been used as internal
40 * data of TimeZone before J2SDK1.3.
41 * Since J2SDK1.4 doesn't need TimeZoneData, this class is for maintenance
42 * of old JDK release.
43 */
44 class Simple extends BackEnd {
45
46 /**
47 * Zone records which are applied for given year.
48 */
49 private static Map<String,ZoneRec> lastZoneRecs = new HashMap<>();
50
51 /**
52 * Rule records which are applied for given year.
53 */
54 private static Map<String,List<RuleRec>> lastRules = new TreeMap<>();
55
56 /**
57 * zone IDs sorted by their GMT offsets. If zone's GMT
58 * offset will change in the future, its last known offset is
59 * used.
60 */
61 private SortedMap<Integer, Set<String>> zonesByOffset = new TreeMap<>();
62
63 /**
64 * Sets last Rule records and Zone records for given timezone to
65 * each Map.
66 *
67 * @param tz Timezone object for each zone
68 * @return always 0
69 */
70 int processZoneinfo(Timezone tz) {
71 String zonename = tz.getName();
72
73 lastRules.put(zonename, tz.getLastRules());
74 lastZoneRecs.put(zonename, tz.getLastZoneRec());
75
76 // Populate zonesByOffset. (Zones that will change their
77 // GMT offsets are also added to zonesByOffset here.)
78 int lastKnownOffset = tz.getRawOffset();
79 Set<String> set = zonesByOffset.get(lastKnownOffset);
80 if (set == null) {
81 set = new TreeSet<>();
82 zonesByOffset.put(lastKnownOffset, set);
83 }
84 set.add(zonename);
85
86 return 0;
87 }
88
89 /**
90 * Generates TimeZoneData to output SimpleTimeZone data.
91 * @param map Mappings object which is generated by {@link Main#compile}.
92 * @return 0 if no error occurred, otherwise 1.
93 */
94 int generateSrc(Mappings map) {
95 try {
96 File outD = new File(Main.getOutputDir());
97 outD.mkdirs();
98
99 FileWriter fw =
100 new FileWriter(new File(outD, "TimeZoneData.java"), false);
101 BufferedWriter out = new BufferedWriter(fw);
102
103 out.write("import java.util.SimpleTimeZone;\n\n");
104 out.write(" static SimpleTimeZone zones[] = {\n");
105
106 Map<String,String> a = map.getAliases();
107 List<Integer> roi = map.getRawOffsetsIndex();
108 List<Set<String>> roit = map.getRawOffsetsIndexTable();
109
110 int index = 0;
111 for (int offset : zonesByOffset.keySet()) {
112 int o = roi.get(index);
113 Set<String> set = zonesByOffset.get(offset);
114 if (offset == o) {
115 // Merge aliases into zonesByOffset
116 set.addAll(roit.get(index));
117 }
118 index++;
119
120 for (String key : set) {
121 ZoneRec zrec;
122 String realname;
123 List<RuleRec> stz;
124 if ((realname = a.get(key)) != null) {
125 // if this alias is not targeted, ignore it.
126 if (!Zone.isTargetZone(key)) {
127 continue;
128 }
129 stz = lastRules.get(realname);
130 zrec = lastZoneRecs.get(realname);
131 } else {
132 stz = lastRules.get(key);
133 zrec = lastZoneRecs.get(key);
134 }
135
136 out.write("\t//--------------------------------------------------------------------\n");
137 String s = Time.toFormedString(offset);
138 out.write("\tnew SimpleTimeZone(" +
139 Time.toFormedString(offset) + ", \"" + key + "\"");
140 if (realname != null) {
141 out.write(" /* " + realname + " */");
142 }
143
144 if (stz == null) {
145 out.write("),\n");
146 } else {
147 RuleRec rr0 = stz.get(0);
148 RuleRec rr1 = stz.get(1);
149
150 out.write(",\n\t " + Month.toString(rr0.getMonthNum()) +
151 ", " + rr0.getDay().getDayForSimpleTimeZone() + ", " +
152 rr0.getDay().getDayOfWeekForSimpleTimeZone() + ", " +
153 Time.toFormedString((int)rr0.getTime().getTime()) + ", " +
154 rr0.getTime().getTypeForSimpleTimeZone() + ",\n" +
155
156 "\t " + Month.toString(rr1.getMonthNum()) + ", " +
157 rr1.getDay().getDayForSimpleTimeZone() + ", " +
158 rr1.getDay().getDayOfWeekForSimpleTimeZone() + ", " +
159 Time.toFormedString((int)rr1.getTime().getTime())+ ", " +
160 rr1.getTime().getTypeForSimpleTimeZone() + ",\n" +
161
162 "\t " + Time.toFormedString(rr0.getSave()) + "),\n");
163
164 out.write("\t// " + rr0.getLine() + "\n");
165 out.write("\t// " + rr1.getLine() + "\n");
166 }
167
168 String zline = zrec.getLine();
169 if (zline.indexOf("Zone") == -1) {
170 zline = "Zone " + key + "\t" + zline.trim();
171 }
172 out.write("\t// " + zline + "\n");
173 }
174 }
175 out.write(" };\n");
176
177 out.close();
178 fw.close();
179 } catch(IOException e) {
180 Main.panic("IO error: "+e.getMessage());
181 return 1;
182 }
183
184 return 0;
185 }
186 }