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[/] [scarts/] [trunk/] [toolchain/] [scarts-gcc/] [gcc-4.1.1/] [libjava/] [classpath/] [java/] [text/] [DateFormatSymbols.java] - Blame information for rev 14

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1 14 jlechner
/* DateFormatSymbols.java -- Format over a range of numbers
2
   Copyright (C) 1998, 1999, 2000, 2001, 2003, 2005  Free Software Foundation, Inc.
3
 
4
This file is part of GNU Classpath.
5
 
6
GNU Classpath is free software; you can redistribute it and/or modify
7
it under the terms of the GNU General Public License as published by
8
the Free Software Foundation; either version 2, or (at your option)
9
any later version.
10
 
11
GNU Classpath is distributed in the hope that it will be useful, but
12
WITHOUT ANY WARRANTY; without even the implied warranty of
13
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14
General Public License for more details.
15
 
16
You should have received a copy of the GNU General Public License
17
along with GNU Classpath; see the file COPYING.  If not, write to the
18
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
19
02110-1301 USA.
20
 
21
Linking this library statically or dynamically with other modules is
22
making a combined work based on this library.  Thus, the terms and
23
conditions of the GNU General Public License cover the whole
24
combination.
25
 
26
As a special exception, the copyright holders of this library give you
27
permission to link this library with independent modules to produce an
28
executable, regardless of the license terms of these independent
29
modules, and to copy and distribute the resulting executable under
30
terms of your choice, provided that you also meet, for each linked
31
independent module, the terms and conditions of the license of that
32
module.  An independent module is a module which is not derived from
33
or based on this library.  If you modify this library, you may extend
34
this exception to your version of the library, but you are not
35
obligated to do so.  If you do not wish to do so, delete this
36
exception statement from your version. */
37
 
38
 
39
package java.text;
40
 
41
import java.util.Locale;
42
import java.util.MissingResourceException;
43
import java.util.ResourceBundle;
44
 
45
/**
46
 * This class acts as container for locale specific date/time formatting
47
 * information such as the days of the week and the months of the year.
48
 * @author Per Bothner (bothner@cygnus.com)
49
 * @date October 24, 1998.
50
 */
51
/* Written using "Java Class Libraries", 2nd edition, ISBN 0-201-31002-3.
52
 * Status:  Believed complete and correct.
53
 */
54
public class DateFormatSymbols implements java.io.Serializable, Cloneable
55
{
56
  String[] ampms;
57
  String[] eras;
58
  private String localPatternChars;
59
  String[] months;
60
  String[] shortMonths;
61
  String[] shortWeekdays;
62
  String[] weekdays;
63
  private String[][] zoneStrings;
64
 
65
  private static final long serialVersionUID = -5987973545549424702L;
66
 
67
  // The order of these prefixes must be the same as in DateFormat
68
  private static final String[] formatPrefixes =
69
  {
70
    "full", "long", "medium", "short"
71
  };
72
 
73
  // These are each arrays with a value for SHORT, MEDIUM, LONG, FULL,
74
  // and DEFAULT (constants defined in java.text.DateFormat).  While
75
  // not part of the official spec, we need a way to get at locale-specific
76
  // default formatting patterns.  They are declared package scope so
77
  // as to be easily accessible where needed (DateFormat, SimpleDateFormat).
78
  transient String[] dateFormats;
79
  transient String[] timeFormats;
80
 
81
  private static String[] getStringArray(ResourceBundle res, String name)
82
  {
83
    return res.getString(name).split("\u00ae");
84
  }
85
 
86
  private String[][] getZoneStrings(ResourceBundle res)
87
  {
88
    try
89
      {
90
        int index = 0;
91
        String data = res.getString("zoneStrings");
92
        String[] zones = data.split("\u00a9");
93
        String[][] array = new String[zones.length][];
94
        for (int a = 0; a < zones.length; ++a)
95
          array[a] = zones[a].split("\u00ae");
96
        return array;
97
      }
98
    catch (MissingResourceException e)
99
      {
100
        return new String[0][];
101
      }
102
  }
103
 
104
  private String[] formatsForKey(ResourceBundle res, String key)
105
  {
106
    String[] values = new String[formatPrefixes.length];
107
 
108
    for (int i = 0; i < formatPrefixes.length; i++)
109
      values[i] = res.getString(formatPrefixes[i] + key);
110
 
111
    return values;
112
  }
113
 
114
  /**
115
   * This method initializes a new instance of <code>DateFormatSymbols</code>
116
   * by loading the date format information for the specified locale.
117
   *
118
   * @param locale The locale for which date formatting symbols should
119
   *               be loaded.
120
   */
121
  public DateFormatSymbols (Locale locale) throws MissingResourceException
122
  {
123
    ResourceBundle res
124
      = ResourceBundle.getBundle("gnu.java.locale.LocaleInformation", locale,
125
                                 ClassLoader.getSystemClassLoader());
126
 
127
    ampms = getStringArray(res, "ampms");
128
    eras = getStringArray(res, "eras");
129
    localPatternChars = res.getString("localPatternChars");
130
    months = getStringArray(res, "months");
131
    shortMonths = getStringArray(res, "shortMonths");
132
    shortWeekdays = getStringArray(res, "shortWeekdays");
133
    weekdays = getStringArray(res, "weekdays");
134
    zoneStrings = getZoneStrings(res);
135
    dateFormats = formatsForKey(res, "DateFormat");
136
    timeFormats = formatsForKey(res, "TimeFormat");
137
  }
138
 
139
  /**
140
   * This method loads the format symbol information for the default
141
   * locale.
142
   */
143
  public DateFormatSymbols () throws MissingResourceException
144
  {
145
    this (Locale.getDefault());
146
  }
147
 
148
  /**
149
   * This method returns the list of strings used for displaying AM or PM.
150
   * This is a two element <code>String</code> array indexed by
151
   * <code>Calendar.AM</code> and <code>Calendar.PM</code>
152
   *
153
   * @return The list of AM/PM display strings.
154
   */
155
  public String[] getAmPmStrings()
156
  {
157
    return ampms;
158
  }
159
 
160
  /**
161
    * This method returns the list of strings used for displaying eras
162
    * (e.g., "BC" and "AD").  This is a two element <code>String</code>
163
    * array indexed by <code>Calendar.BC</code> and <code>Calendar.AD</code>.
164
    *
165
    * @return The list of era disply strings.
166
    */
167
  public String[] getEras()
168
  {
169
    return eras;
170
  }
171
 
172
  /**
173
    * This method returns the pattern character information for this
174
    * object.  This is an 18 character string that contains the characters
175
    * that are used in creating the date formatting strings in
176
    * <code>SimpleDateFormat</code>.   The following are the character
177
    * positions in the string and which format character they correspond
178
    * to (the character in parentheses is the default value in the US English
179
    * locale):
180
    * <p>
181
    * <ul>
182
    * <li>0 - era (G)</li>
183
    * <li>1 - year (y)</li>
184
    * <li>2 - month (M)</li>
185
    * <li>3 - day of month (d)</li>
186
    * <li>4 - hour out of 12, from 1-12 (h)</li>
187
    * <li>5 - hour out of 24, from 0-23 (H)</li>
188
    * <li>6 - minute (m)</li>
189
    * <li>7 - second (s)</li>
190
    * <li>8 - millisecond (S)</li>
191
    * <li>9 - date of week (E)</li>
192
    * <li>10 - date of year (D)</li>
193
    * <li>11 - day of week in month, eg. "4th Thur in Nov" (F)</li>
194
    * <li>12 - week in year (w)</li>
195
    * <li>13 - week in month (W)</li>
196
    * <li>14 - am/pm (a)</li>
197
    * <li>15 - hour out of 24, from 1-24 (k)</li>
198
    * <li>16 - hour out of 12, from 0-11 (K)</li>
199
    * <li>17 - time zone (z)</li>
200
    * </ul>
201
    *
202
    * @return The format patter characters
203
    */
204
  public String getLocalPatternChars()
205
  {
206
    return localPatternChars;
207
  }
208
 
209
  /**
210
   * This method returns the list of strings used for displaying month
211
   * names (e.g., "January" and "February").  This is a thirteen element
212
   * string array indexed by <code>Calendar.JANUARY</code> through
213
   * <code>Calendar.UNDECEMBER</code>.  Note that there are thirteen
214
   * elements because some calendars have thriteen months.
215
   *
216
   * @return The list of month display strings.
217
   */
218
  public String[] getMonths ()
219
  {
220
    return months;
221
  }
222
 
223
  /**
224
   * This method returns the list of strings used for displaying abbreviated
225
   * month names (e.g., "Jan" and "Feb").  This is a thirteen element
226
   * <code>String</code> array indexed by <code>Calendar.JANUARY</code>
227
   * through <code>Calendar.UNDECEMBER</code>.  Note that there are thirteen
228
   * elements because some calendars have thirteen months.
229
   *
230
   * @return The list of abbreviated month display strings.
231
   */
232
  public String[] getShortMonths ()
233
  {
234
    return shortMonths;
235
  }
236
 
237
  /**
238
   * This method returns the list of strings used for displaying abbreviated
239
   * weekday names (e.g., "Sun" and "Mon").  This is an eight element
240
   * <code>String</code> array indexed by <code>Calendar.SUNDAY</code>
241
   * through <code>Calendar.SATURDAY</code>.  Note that the first element
242
   * of this array is ignored.
243
   *
244
   * @return This list of abbreviated weekday display strings.
245
   */
246
  public String[] getShortWeekdays ()
247
  {
248
    return shortWeekdays;
249
  }
250
 
251
  /**
252
   * This method returns the list of strings used for displaying weekday
253
   * names (e.g., "Sunday" and "Monday").  This is an eight element
254
   * <code>String</code> array indexed by <code>Calendar.SUNDAY</code>
255
   * through <code>Calendar.SATURDAY</code>.  Note that the first element
256
   * of this array is ignored.
257
   *
258
   * @return This list of weekday display strings.
259
   */
260
  public String[] getWeekdays ()
261
  {
262
    return weekdays;
263
  }
264
 
265
  /**
266
   * This method returns this list of localized timezone display strings.
267
   * This is a two dimensional <code>String</code> array where each row in
268
   * the array contains five values:
269
   * <P>
270
   * <ul>
271
   * <li>0 - The non-localized time zone id string.</li>
272
   * <li>1 - The long name of the time zone (standard time).</li>
273
   * <li>2 - The short name of the time zone (standard time).</li>
274
   * <li>3 - The long name of the time zone (daylight savings time).</li>
275
   * <li>4 - the short name of the time zone (daylight savings time).</li>
276
   * </ul>
277
   *
278
   * @return The list of time zone display strings.
279
   */
280
  public String[] [] getZoneStrings ()
281
  {
282
    return zoneStrings;
283
  }
284
 
285
  /**
286
   * This method sets the list of strings used to display AM/PM values to
287
   * the specified list.
288
   * This is a two element <code>String</code> array indexed by
289
   * <code>Calendar.AM</code> and <code>Calendar.PM</code>
290
   *
291
   * @param value The new list of AM/PM display strings.
292
   */
293
  public void setAmPmStrings (String[] value)
294
  {
295
    ampms = value;
296
  }
297
 
298
  /**
299
   * This method sets the list of strings used to display time eras to
300
   * to the specified list.
301
   * This is a two element <code>String</code>
302
   * array indexed by <code>Calendar.BC</code> and <code>Calendar.AD</code>.
303
   *
304
   * @param labels The new list of era display strings.
305
   */
306
  public void setEras (String[] labels)
307
  {
308
    eras = labels;
309
  }
310
 
311
  /**
312
    * This method sets the list of characters used to specific date/time
313
    * formatting strings.
314
    * This is an 18 character string that contains the characters
315
    * that are used in creating the date formatting strings in
316
    * <code>SimpleDateFormat</code>.   The following are the character
317
    * positions in the string and which format character they correspond
318
    * to (the character in parentheses is the default value in the US English
319
    * locale):
320
    * <p>
321
    * <ul>
322
    * <li>0 - era (G)</li>
323
    * <li>1 - year (y)</li>
324
    * <li>2 - month (M)</li>
325
    * <li>3 - day of month (d)</li>
326
    * <li>4 - hour out of 12, from 1-12 (h)</li>
327
    * <li>5 - hour out of 24, from 0-23 (H)</li>
328
    * <li>6 - minute (m)</li>
329
    * <li>7 - second (s)</li>
330
    * <li>8 - millisecond (S)</li>
331
    * <li>9 - date of week (E)</li>
332
    * <li>10 - date of year (D)</li>
333
    * <li>11 - day of week in month, eg. "4th Thur in Nov" (F)</li>
334
    * <li>12 - week in year (w)</li>
335
    * <li>13 - week in month (W)</li>
336
    * <li>14 - am/pm (a)</li>
337
    * <li>15 - hour out of 24, from 1-24 (k)</li>
338
    * <li>16 - hour out of 12, from 0-11 (K)</li>
339
    * <li>17 - time zone (z)</li>
340
    * </ul>
341
    *
342
    * @param chars The new format pattern characters
343
    */
344
  public void setLocalPatternChars (String chars)
345
  {
346
    localPatternChars = chars;
347
  }
348
 
349
  /**
350
    * This method sets the list of strings used to display month names.
351
    * This is a thirteen element
352
    * string array indexed by <code>Calendar.JANUARY</code> through
353
    * <code>Calendar.UNDECEMBER</code>.  Note that there are thirteen
354
    * elements because some calendars have thriteen months.
355
    *
356
    * @param labels The list of month display strings.
357
    */
358
  public void setMonths (String[] labels)
359
  {
360
    months = labels;
361
  }
362
 
363
  /**
364
   * This method sets the list of strings used to display abbreviated month
365
   * names.
366
   * This is a thirteen element
367
   * <code>String</code> array indexed by <code>Calendar.JANUARY</code>
368
   * through <code>Calendar.UNDECEMBER</code>.  Note that there are thirteen
369
   * elements because some calendars have thirteen months.
370
   *
371
   * @param labels The new list of abbreviated month display strings.
372
   */
373
  public void setShortMonths (String[] labels)
374
  {
375
    shortMonths = labels;
376
  }
377
 
378
  /**
379
   * This method sets the list of strings used to display abbreviated
380
   * weekday names.
381
   * This is an eight element
382
   * <code>String</code> array indexed by <code>Calendar.SUNDAY</code>
383
   * through <code>Calendar.SATURDAY</code>.  Note that the first element
384
   * of this array is ignored.
385
   *
386
   * @param labels This list of abbreviated weekday display strings.
387
   */
388
  public void setShortWeekdays (String[] labels)
389
  {
390
    shortWeekdays = labels;
391
  }
392
 
393
  /**
394
   * This method sets the list of strings used to display weekday names.
395
   * This is an eight element
396
   * <code>String</code> array indexed by <code>Calendar.SUNDAY</code>
397
   * through <code>Calendar.SATURDAY</code>.  Note that the first element
398
   * of this array is ignored.
399
   *
400
   * @param labels This list of weekday display strings.
401
   */
402
  public void setWeekdays (String[] labels)
403
  {
404
    weekdays = labels;
405
  }
406
 
407
  /**
408
   * This method sets the list of display strings for time zones.
409
   * This is a two dimensional <code>String</code> array where each row in
410
   * the array contains five values:
411
   * <P>
412
   * <ul>
413
   * <li>0 - The non-localized time zone id string.</li>
414
   * <li>1 - The long name of the time zone (standard time).</li>
415
   * <li>2 - The short name of the time zone (standard time).</li>
416
   * <li>3 - The long name of the time zone (daylight savings time).</li>
417
   * <li>4 - the short name of the time zone (daylight savings time).</li>
418
   * </ul>
419
   *
420
   * @params zones The list of time zone display strings.
421
   */
422
  public void setZoneStrings (String[][] zones)
423
  {
424
    zoneStrings = zones;
425
  }
426
 
427
  /* Does a "deep" equality test - recurses into arrays. */
428
  private static boolean equals (Object x, Object y)
429
  {
430
    if (x == y)
431
      return true;
432
    if (x == null || y == null)
433
      return false;
434
    if (! (x instanceof Object[]) || ! (y instanceof Object[]))
435
      return x.equals(y);
436
    Object[] xa = (Object[]) x;
437
    Object[] ya = (Object[]) y;
438
    if (xa.length != ya.length)
439
      return false;
440
    for (int i = xa.length;  --i >= 0; )
441
      {
442
        if (! equals(xa[i], ya[i]))
443
          return false;
444
      }
445
    return true;
446
  }
447
 
448
  private static int hashCode (Object x)
449
  {
450
    if (x == null)
451
      return 0;
452
    if (! (x instanceof Object[]))
453
      return x.hashCode();
454
    Object[] xa = (Object[]) x;
455
    int hash = 0;
456
    for (int i = 0;  i < xa.length;  i++)
457
      hash = 37 * hashCode(xa[i]);
458
    return hash;
459
  }
460
 
461
  /**
462
   * This method tests a specified object for equality against this object.
463
   * This will be true if and only if the specified object:
464
   * <p>
465
   * <ul>
466
   * <li> Is not <code>null</code>.</li>
467
   * <li> Is an instance of <code>DateFormatSymbols</code>.</li>
468
   * <li> Contains identical formatting symbols to this object.</li>
469
   * </ul>
470
   *
471
   * @param obj The <code>Object</code> to test for equality against.
472
   *
473
   * @return <code>true</code> if the specified object is equal to this one,
474
   * <code>false</code> otherwise.
475
   */
476
  public boolean equals (Object obj)
477
  {
478
    if (! (obj instanceof DateFormatSymbols))
479
      return false;
480
    DateFormatSymbols other = (DateFormatSymbols) obj;
481
    return (equals(ampms, other.ampms)
482
            && equals(eras, other.eras)
483
            && equals(localPatternChars, other.localPatternChars)
484
            && equals(months, other.months)
485
            && equals(shortMonths, other.shortMonths)
486
            && equals(shortWeekdays, other.shortWeekdays)
487
            && equals(weekdays, other.weekdays)
488
            && equals(zoneStrings, other.zoneStrings));
489
  }
490
 
491
  /**
492
   * Returns a new copy of this object.
493
   *
494
   * @return A copy of this object
495
   */
496
  public Object clone ()
497
  {
498
    try
499
      {
500
        return super.clone ();
501
      }
502
    catch (CloneNotSupportedException e)
503
      {
504
        return null;
505
      }
506
  }
507
 
508
  /**
509
   * This method returns a hash value for this object.
510
   *
511
   * @return A hash value for this object.
512
   */
513
  public int hashCode ()
514
  {
515
    return (hashCode(ampms)
516
            ^ hashCode(eras)
517
            ^ hashCode(localPatternChars)
518
            ^ hashCode(months)
519
            ^ hashCode(shortMonths)
520
            ^ hashCode(shortWeekdays)
521
            ^ hashCode(weekdays)
522
            ^ hashCode(zoneStrings));
523
  }
524
}

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