| 1 | /* |
| 2 | * Copyright 2001-2006,2008 Stephen Colebourne |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | package org.joda.time.format; |
| 17 | |
| 18 | import java.util.Collection; |
| 19 | import java.util.HashSet; |
| 20 | import java.util.Set; |
| 21 | |
| 22 | import org.joda.time.DateTimeFieldType; |
| 23 | import org.joda.time.DateTimeZone; |
| 24 | |
| 25 | /** |
| 26 | * Factory that creates instances of DateTimeFormatter for the ISO8601 standard. |
| 27 | * <p> |
| 28 | * Datetime formatting is performed by the {@link DateTimeFormatter} class. |
| 29 | * Three classes provide factory methods to create formatters, and this is one. |
| 30 | * The others are {@link DateTimeFormat} and {@link DateTimeFormatterBuilder}. |
| 31 | * <p> |
| 32 | * ISO8601 is the international standard for data interchange. It defines a |
| 33 | * framework, rather than an absolute standard. As a result this provider has a |
| 34 | * number of methods that represent common uses of the framework. The most common |
| 35 | * formats are {@link #date() date}, {@link #time() time}, and {@link #dateTime() dateTime}. |
| 36 | * <p> |
| 37 | * For example, to format a date time in ISO format: |
| 38 | * <pre> |
| 39 | * DateTime dt = new DateTime(); |
| 40 | * DateTimeFormatter fmt = ISODateTimeFormat.dateTime(); |
| 41 | * String str = fmt.print(dt); |
| 42 | * </pre> |
| 43 | * <p> |
| 44 | * It is important to understand that these formatters are not linked to |
| 45 | * the <code>ISOChronology</code>. These formatters may be used with any |
| 46 | * chronology, however there may be certain side effects with more unusual |
| 47 | * chronologies. For example, the ISO formatters rely on dayOfWeek being |
| 48 | * single digit, dayOfMonth being two digit and dayOfYear being three digit. |
| 49 | * A chronology with a ten day week would thus cause issues. However, in |
| 50 | * general, it is safe to use these formatters with other chronologies. |
| 51 | * <p> |
| 52 | * ISODateTimeFormat is thread-safe and immutable, and the formatters it |
| 53 | * returns are as well. |
| 54 | * |
| 55 | * @author Brian S O'Neill |
| 56 | * @since 1.0 |
| 57 | * @see DateTimeFormat |
| 58 | * @see DateTimeFormatterBuilder |
| 59 | */ |
| 60 | public class ISODateTimeFormat { |
| 61 | |
| 62 | //----------------------------------------------------------------------- |
| 63 | private static DateTimeFormatter |
| 64 | ye, // year element (yyyy) |
| 65 | mye, // monthOfYear element (-MM) |
| 66 | dme, // dayOfMonth element (-dd) |
| 67 | we, // weekyear element (xxxx) |
| 68 | wwe, // weekOfWeekyear element (-ww) |
| 69 | dwe, // dayOfWeek element (-ee) |
| 70 | dye, // dayOfYear element (-DDD) |
| 71 | hde, // hourOfDay element (HH) |
| 72 | mhe, // minuteOfHour element (:mm) |
| 73 | sme, // secondOfMinute element (:ss) |
| 74 | fse, // fractionOfSecond element (.SSSSSSSSS) |
| 75 | ze, // zone offset element |
| 76 | lte, // literal 'T' element |
| 77 | |
| 78 | //y, // year (same as year element) |
| 79 | ym, // year month |
| 80 | ymd, // year month day |
| 81 | |
| 82 | //w, // weekyear (same as weekyear element) |
| 83 | ww, // weekyear week |
| 84 | wwd, // weekyear week day |
| 85 | |
| 86 | //h, // hour (same as hour element) |
| 87 | hm, // hour minute |
| 88 | hms, // hour minute second |
| 89 | hmsl, // hour minute second millis |
| 90 | hmsf, // hour minute second fraction |
| 91 | |
| 92 | dh, // date hour |
| 93 | dhm, // date hour minute |
| 94 | dhms, // date hour minute second |
| 95 | dhmsl, // date hour minute second millis |
| 96 | dhmsf, // date hour minute second fraction |
| 97 | |
| 98 | //d, // date (same as ymd) |
| 99 | t, // time |
| 100 | tx, // time no millis |
| 101 | tt, // Ttime |
| 102 | ttx, // Ttime no millis |
| 103 | dt, // date time |
| 104 | dtx, // date time no millis |
| 105 | |
| 106 | //wd, // week date (same as wwd) |
| 107 | wdt, // week date time |
| 108 | wdtx, // week date time no millis |
| 109 | |
| 110 | od, // ordinal date (same as yd) |
| 111 | odt, // ordinal date time |
| 112 | odtx, // ordinal date time no millis |
| 113 | |
| 114 | bd, // basic date |
| 115 | bt, // basic time |
| 116 | btx, // basic time no millis |
| 117 | btt, // basic Ttime |
| 118 | bttx, // basic Ttime no millis |
| 119 | bdt, // basic date time |
| 120 | bdtx, // basic date time no millis |
| 121 | |
| 122 | bod, // basic ordinal date |
| 123 | bodt, // basic ordinal date time |
| 124 | bodtx, // basic ordinal date time no millis |
| 125 | |
| 126 | bwd, // basic week date |
| 127 | bwdt, // basic week date time |
| 128 | bwdtx, // basic week date time no millis |
| 129 | |
| 130 | dpe, // date parser element |
| 131 | tpe, // time parser element |
| 132 | dp, // date parser |
| 133 | ldp, // local date parser |
| 134 | tp, // time parser |
| 135 | ltp, // local time parser |
| 136 | dtp, // date time parser |
| 137 | dotp, // date optional time parser |
| 138 | ldotp; // local date optional time parser |
| 139 | |
| 140 | /** |
| 141 | * Constructor. |
| 142 | * |
| 143 | * @since 1.1 (previously private) |
| 144 | */ |
| 145 | protected ISODateTimeFormat() { |
| 146 | super(); |
| 147 | } |
| 148 | |
| 149 | //----------------------------------------------------------------------- |
| 150 | /** |
| 151 | * Returns a formatter that outputs only those fields specified. |
| 152 | * <p> |
| 153 | * This method examines the fields provided and returns an ISO-style |
| 154 | * formatter that best fits. This can be useful for outputting |
| 155 | * less-common ISO styles, such as YearMonth (YYYY-MM) or MonthDay (--MM-DD). |
| 156 | * <p> |
| 157 | * The list provided may have overlapping fields, such as dayOfWeek and |
| 158 | * dayOfMonth. In this case, the style is chosen based on the following |
| 159 | * list, thus in the example, the calendar style is chosen as dayOfMonth |
| 160 | * is higher in priority than dayOfWeek: |
| 161 | * <ul> |
| 162 | * <li>monthOfYear - calendar date style |
| 163 | * <li>dayOfYear - ordinal date style |
| 164 | * <li>weekOfWeekYear - week date style |
| 165 | * <li>dayOfMonth - calendar date style |
| 166 | * <li>dayOfWeek - week date style |
| 167 | * <li>year |
| 168 | * <li>weekyear |
| 169 | * </ul> |
| 170 | * The supported formats are: |
| 171 | * <pre> |
| 172 | * Extended Basic Fields |
| 173 | * 2005-03-25 20050325 year/monthOfYear/dayOfMonth |
| 174 | * 2005-03 2005-03 year/monthOfYear |
| 175 | * 2005--25 2005--25 year/dayOfMonth * |
| 176 | * 2005 2005 year |
| 177 | * --03-25 --0325 monthOfYear/dayOfMonth |
| 178 | * --03 --03 monthOfYear |
| 179 | * ---03 ---03 dayOfMonth |
| 180 | * 2005-084 2005084 year/dayOfYear |
| 181 | * -084 -084 dayOfYear |
| 182 | * 2005-W12-5 2005W125 weekyear/weekOfWeekyear/dayOfWeek |
| 183 | * 2005-W-5 2005W-5 weekyear/dayOfWeek * |
| 184 | * 2005-W12 2005W12 weekyear/weekOfWeekyear |
| 185 | * -W12-5 -W125 weekOfWeekyear/dayOfWeek |
| 186 | * -W12 -W12 weekOfWeekyear |
| 187 | * -W-5 -W-5 dayOfWeek |
| 188 | * 10:20:30.040 102030.040 hour/minute/second/milli |
| 189 | * 10:20:30 102030 hour/minute/second |
| 190 | * 10:20 1020 hour/minute |
| 191 | * 10 10 hour |
| 192 | * -20:30.040 -2030.040 minute/second/milli |
| 193 | * -20:30 -2030 minute/second |
| 194 | * -20 -20 minute |
| 195 | * --30.040 --30.040 second/milli |
| 196 | * --30 --30 second |
| 197 | * ---.040 ---.040 milli * |
| 198 | * 10-30.040 10-30.040 hour/second/milli * |
| 199 | * 10:20-.040 1020-.040 hour/minute/milli * |
| 200 | * 10-30 10-30 hour/second * |
| 201 | * 10--.040 10--.040 hour/milli * |
| 202 | * -20-.040 -20-.040 minute/milli * |
| 203 | * plus datetime formats like {date}T{time} |
| 204 | * </pre> |
| 205 | * * indiates that this is not an official ISO format and can be excluded |
| 206 | * by passing in <code>strictISO</code> as <code>true</code>. |
| 207 | * <p> |
| 208 | * This method can side effect the input collection of fields. |
| 209 | * If the input collection is modifiable, then each field that was added to |
| 210 | * the formatter will be removed from the collection, including any duplicates. |
| 211 | * If the input collection is unmodifiable then no side effect occurs. |
| 212 | * <p> |
| 213 | * This side effect processing is useful if you need to know whether all |
| 214 | * the fields were converted into the formatter or not. To achieve this, |
| 215 | * pass in a modifiable list, and check that it is empty on exit. |
| 216 | * |
| 217 | * @param fields the fields to get a formatter for, not null, |
| 218 | * updated by the method call unless unmodifiable, |
| 219 | * removing those fields built in the formatter |
| 220 | * @param extended true to use the extended format (with separators) |
| 221 | * @param strictISO true to stick exactly to ISO8601, false to include additional formats |
| 222 | * @return a suitable formatter |
| 223 | * @throws IllegalArgumentException if there is no format for the fields |
| 224 | * @since 1.1 |
| 225 | */ |
| 226 | public static DateTimeFormatter forFields( |
| 227 | Collection fields, |
| 228 | boolean extended, |
| 229 | boolean strictISO) { |
| 230 | |
| 231 | if (fields == null || fields.size() == 0) { |
| 232 | throw new IllegalArgumentException("The fields must not be null or empty"); |
| 233 | } |
| 234 | Set workingFields = new HashSet(fields); |
| 235 | int inputSize = workingFields.size(); |
| 236 | boolean reducedPrec = false; |
| 237 | DateTimeFormatterBuilder bld = new DateTimeFormatterBuilder(); |
| 238 | // date |
| 239 | if (workingFields.contains(DateTimeFieldType.monthOfYear())) { |
| 240 | reducedPrec = dateByMonth(bld, workingFields, extended, strictISO); |
| 241 | } else if (workingFields.contains(DateTimeFieldType.dayOfYear())) { |
| 242 | reducedPrec = dateByOrdinal(bld, workingFields, extended, strictISO); |
| 243 | } else if (workingFields.contains(DateTimeFieldType.weekOfWeekyear())) { |
| 244 | reducedPrec = dateByWeek(bld, workingFields, extended, strictISO); |
| 245 | } else if (workingFields.contains(DateTimeFieldType.dayOfMonth())) { |
| 246 | reducedPrec = dateByMonth(bld, workingFields, extended, strictISO); |
| 247 | } else if (workingFields.contains(DateTimeFieldType.dayOfWeek())) { |
| 248 | reducedPrec = dateByWeek(bld, workingFields, extended, strictISO); |
| 249 | } else if (workingFields.remove(DateTimeFieldType.year())) { |
| 250 | bld.append(yearElement()); |
| 251 | reducedPrec = true; |
| 252 | } else if (workingFields.remove(DateTimeFieldType.weekyear())) { |
| 253 | bld.append(weekyearElement()); |
| 254 | reducedPrec = true; |
| 255 | } |
| 256 | boolean datePresent = (workingFields.size() < inputSize); |
| 257 | |
| 258 | // time |
| 259 | time(bld, workingFields, extended, strictISO, reducedPrec, datePresent); |
| 260 | |
| 261 | // result |
| 262 | if (bld.canBuildFormatter() == false) { |
| 263 | throw new IllegalArgumentException("No valid format for fields: " + fields); |
| 264 | } |
| 265 | |
| 266 | // side effect the input collection to indicate the processed fields |
| 267 | // handling unmodifiable collections with no side effect |
| 268 | try { |
| 269 | fields.retainAll(workingFields); |
| 270 | } catch (UnsupportedOperationException ex) { |
| 271 | // ignore, so we can handle unmodifiable collections |
| 272 | } |
| 273 | return bld.toFormatter(); |
| 274 | } |
| 275 | |
| 276 | //----------------------------------------------------------------------- |
| 277 | /** |
| 278 | * Creates a date using the calendar date format. |
| 279 | * Specification reference: 5.2.1. |
| 280 | * |
| 281 | * @param bld the builder |
| 282 | * @param fields the fields |
| 283 | * @param extended true to use extended format |
| 284 | * @param strictISO true to only allow ISO formats |
| 285 | * @return true if reduced precision |
| 286 | * @since 1.1 |
| 287 | */ |
| 288 | private static boolean dateByMonth( |
| 289 | DateTimeFormatterBuilder bld, |
| 290 | Collection fields, |
| 291 | boolean extended, |
| 292 | boolean strictISO) { |
| 293 | |
| 294 | boolean reducedPrec = false; |
| 295 | if (fields.remove(DateTimeFieldType.year())) { |
| 296 | bld.append(yearElement()); |
| 297 | if (fields.remove(DateTimeFieldType.monthOfYear())) { |
| 298 | if (fields.remove(DateTimeFieldType.dayOfMonth())) { |
| 299 | // YYYY-MM-DD/YYYYMMDD |
| 300 | appendSeparator(bld, extended); |
| 301 | bld.appendMonthOfYear(2); |
| 302 | appendSeparator(bld, extended); |
| 303 | bld.appendDayOfMonth(2); |
| 304 | } else { |
| 305 | // YYYY-MM/YYYY-MM |
| 306 | bld.appendLiteral('-'); |
| 307 | bld.appendMonthOfYear(2); |
| 308 | reducedPrec = true; |
| 309 | } |
| 310 | } else { |
| 311 | if (fields.remove(DateTimeFieldType.dayOfMonth())) { |
| 312 | // YYYY--DD/YYYY--DD (non-iso) |
| 313 | checkNotStrictISO(fields, strictISO); |
| 314 | bld.appendLiteral('-'); |
| 315 | bld.appendLiteral('-'); |
| 316 | bld.appendDayOfMonth(2); |
| 317 | } else { |
| 318 | // YYYY/YYYY |
| 319 | reducedPrec = true; |
| 320 | } |
| 321 | } |
| 322 | |
| 323 | } else if (fields.remove(DateTimeFieldType.monthOfYear())) { |
| 324 | bld.appendLiteral('-'); |
| 325 | bld.appendLiteral('-'); |
| 326 | bld.appendMonthOfYear(2); |
| 327 | if (fields.remove(DateTimeFieldType.dayOfMonth())) { |
| 328 | // --MM-DD/--MMDD |
| 329 | appendSeparator(bld, extended); |
| 330 | bld.appendDayOfMonth(2); |
| 331 | } else { |
| 332 | // --MM/--MM |
| 333 | reducedPrec = true; |
| 334 | } |
| 335 | } else if (fields.remove(DateTimeFieldType.dayOfMonth())) { |
| 336 | // ---DD/---DD |
| 337 | bld.appendLiteral('-'); |
| 338 | bld.appendLiteral('-'); |
| 339 | bld.appendLiteral('-'); |
| 340 | bld.appendDayOfMonth(2); |
| 341 | } |
| 342 | return reducedPrec; |
| 343 | } |
| 344 | |
| 345 | //----------------------------------------------------------------------- |
| 346 | /** |
| 347 | * Creates a date using the ordinal date format. |
| 348 | * Specification reference: 5.2.2. |
| 349 | * |
| 350 | * @param bld the builder |
| 351 | * @param fields the fields |
| 352 | * @param extended true to use extended format |
| 353 | * @param strictISO true to only allow ISO formats |
| 354 | * @since 1.1 |
| 355 | */ |
| 356 | private static boolean dateByOrdinal( |
| 357 | DateTimeFormatterBuilder bld, |
| 358 | Collection fields, |
| 359 | boolean extended, |
| 360 | boolean strictISO) { |
| 361 | |
| 362 | boolean reducedPrec = false; |
| 363 | if (fields.remove(DateTimeFieldType.year())) { |
| 364 | bld.append(yearElement()); |
| 365 | if (fields.remove(DateTimeFieldType.dayOfYear())) { |
| 366 | // YYYY-DDD/YYYYDDD |
| 367 | appendSeparator(bld, extended); |
| 368 | bld.appendDayOfYear(3); |
| 369 | } else { |
| 370 | // YYYY/YYYY |
| 371 | reducedPrec = true; |
| 372 | } |
| 373 | |
| 374 | } else if (fields.remove(DateTimeFieldType.dayOfYear())) { |
| 375 | // -DDD/-DDD |
| 376 | bld.appendLiteral('-'); |
| 377 | bld.appendDayOfYear(3); |
| 378 | } |
| 379 | return reducedPrec; |
| 380 | } |
| 381 | |
| 382 | //----------------------------------------------------------------------- |
| 383 | /** |
| 384 | * Creates a date using the calendar date format. |
| 385 | * Specification reference: 5.2.3. |
| 386 | * |
| 387 | * @param bld the builder |
| 388 | * @param fields the fields |
| 389 | * @param extended true to use extended format |
| 390 | * @param strictISO true to only allow ISO formats |
| 391 | * @since 1.1 |
| 392 | */ |
| 393 | private static boolean dateByWeek( |
| 394 | DateTimeFormatterBuilder bld, |
| 395 | Collection fields, |
| 396 | boolean extended, |
| 397 | boolean strictISO) { |
| 398 | |
| 399 | boolean reducedPrec = false; |
| 400 | if (fields.remove(DateTimeFieldType.weekyear())) { |
| 401 | bld.append(weekyearElement()); |
| 402 | if (fields.remove(DateTimeFieldType.weekOfWeekyear())) { |
| 403 | appendSeparator(bld, extended); |
| 404 | bld.appendLiteral('W'); |
| 405 | bld.appendWeekOfWeekyear(2); |
| 406 | if (fields.remove(DateTimeFieldType.dayOfWeek())) { |
| 407 | // YYYY-WWW-D/YYYYWWWD |
| 408 | appendSeparator(bld, extended); |
| 409 | bld.appendDayOfWeek(1); |
| 410 | } else { |
| 411 | // YYYY-WWW/YYYY-WWW |
| 412 | reducedPrec = true; |
| 413 | } |
| 414 | } else { |
| 415 | if (fields.remove(DateTimeFieldType.dayOfWeek())) { |
| 416 | // YYYY-W-D/YYYYW-D (non-iso) |
| 417 | checkNotStrictISO(fields, strictISO); |
| 418 | appendSeparator(bld, extended); |
| 419 | bld.appendLiteral('W'); |
| 420 | bld.appendLiteral('-'); |
| 421 | bld.appendDayOfWeek(1); |
| 422 | } else { |
| 423 | // YYYY/YYYY |
| 424 | reducedPrec = true; |
| 425 | } |
| 426 | } |
| 427 | |
| 428 | } else if (fields.remove(DateTimeFieldType.weekOfWeekyear())) { |
| 429 | bld.appendLiteral('-'); |
| 430 | bld.appendLiteral('W'); |
| 431 | bld.appendWeekOfWeekyear(2); |
| 432 | if (fields.remove(DateTimeFieldType.dayOfWeek())) { |
| 433 | // -WWW-D/-WWWD |
| 434 | appendSeparator(bld, extended); |
| 435 | bld.appendDayOfWeek(1); |
| 436 | } else { |
| 437 | // -WWW/-WWW |
| 438 | reducedPrec = true; |
| 439 | } |
| 440 | } else if (fields.remove(DateTimeFieldType.dayOfWeek())) { |
| 441 | // -W-D/-W-D |
| 442 | bld.appendLiteral('-'); |
| 443 | bld.appendLiteral('W'); |
| 444 | bld.appendLiteral('-'); |
| 445 | bld.appendDayOfWeek(1); |
| 446 | } |
| 447 | return reducedPrec; |
| 448 | } |
| 449 | |
| 450 | //----------------------------------------------------------------------- |
| 451 | /** |
| 452 | * Adds the time fields to the builder. |
| 453 | * Specification reference: 5.3.1. |
| 454 | * |
| 455 | * @param bld the builder |
| 456 | * @param fields the fields |
| 457 | * @param extended whether to use the extended format |
| 458 | * @param strictISO whether to be strict |
| 459 | * @param reducedPrec whether the date was reduced precision |
| 460 | * @param datePresent whether there was a date |
| 461 | * @since 1.1 |
| 462 | */ |
| 463 | private static void time( |
| 464 | DateTimeFormatterBuilder bld, |
| 465 | Collection fields, |
| 466 | boolean extended, |
| 467 | boolean strictISO, |
| 468 | boolean reducedPrec, |
| 469 | boolean datePresent) { |
| 470 | |
| 471 | boolean hour = fields.remove(DateTimeFieldType.hourOfDay()); |
| 472 | boolean minute = fields.remove(DateTimeFieldType.minuteOfHour()); |
| 473 | boolean second = fields.remove(DateTimeFieldType.secondOfMinute()); |
| 474 | boolean milli = fields.remove(DateTimeFieldType.millisOfSecond()); |
| 475 | if (!hour && !minute && !second && !milli) { |
| 476 | return; |
| 477 | } |
| 478 | if (hour || minute || second || milli) { |
| 479 | if (strictISO && reducedPrec) { |
| 480 | throw new IllegalArgumentException("No valid ISO8601 format for fields because Date was reduced precision: " + fields); |
| 481 | } |
| 482 | if (datePresent) { |
| 483 | bld.appendLiteral('T'); |
| 484 | } |
| 485 | } |
| 486 | if (hour && minute && second || (hour && !second && !milli)) { |
| 487 | // OK - HMSm/HMS/HM/H - valid in combination with date |
| 488 | } else { |
| 489 | if (strictISO && datePresent) { |
| 490 | throw new IllegalArgumentException("No valid ISO8601 format for fields because Time was truncated: " + fields); |
| 491 | } |
| 492 | if (!hour && (minute && second || (minute && !milli) || second)) { |
| 493 | // OK - MSm/MS/M/Sm/S - valid ISO formats |
| 494 | } else { |
| 495 | if (strictISO) { |
| 496 | throw new IllegalArgumentException("No valid ISO8601 format for fields: " + fields); |
| 497 | } |
| 498 | } |
| 499 | } |
| 500 | if (hour) { |
| 501 | bld.appendHourOfDay(2); |
| 502 | } else if (minute || second || milli) { |
| 503 | bld.appendLiteral('-'); |
| 504 | } |
| 505 | if (extended && hour && minute) { |
| 506 | bld.appendLiteral(':'); |
| 507 | } |
| 508 | if (minute) { |
| 509 | bld.appendMinuteOfHour(2); |
| 510 | } else if (second || milli) { |
| 511 | bld.appendLiteral('-'); |
| 512 | } |
| 513 | if (extended && minute && second) { |
| 514 | bld.appendLiteral(':'); |
| 515 | } |
| 516 | if (second) { |
| 517 | bld.appendSecondOfMinute(2); |
| 518 | } else if (milli) { |
| 519 | bld.appendLiteral('-'); |
| 520 | } |
| 521 | if (milli) { |
| 522 | bld.appendLiteral('.'); |
| 523 | bld.appendMillisOfSecond(3); |
| 524 | } |
| 525 | } |
| 526 | |
| 527 | //----------------------------------------------------------------------- |
| 528 | /** |
| 529 | * Checks that the iso only flag is not set, throwing an exception if it is. |
| 530 | * |
| 531 | * @param fields the fields |
| 532 | * @param strictISO true if only ISO formats allowed |
| 533 | * @since 1.1 |
| 534 | */ |
| 535 | private static void checkNotStrictISO(Collection fields, boolean strictISO) { |
| 536 | if (strictISO) { |
| 537 | throw new IllegalArgumentException("No valid ISO8601 format for fields: " + fields); |
| 538 | } |
| 539 | } |
| 540 | |
| 541 | /** |
| 542 | * Appends the separator if necessary. |
| 543 | * |
| 544 | * @param bld the builder |
| 545 | * @param extended whether to append the separator |
| 546 | * @param sep the separator |
| 547 | * @since 1.1 |
| 548 | */ |
| 549 | private static void appendSeparator(DateTimeFormatterBuilder bld, boolean extended) { |
| 550 | if (extended) { |
| 551 | bld.appendLiteral('-'); |
| 552 | } |
| 553 | } |
| 554 | |
| 555 | //----------------------------------------------------------------------- |
| 556 | /** |
| 557 | * Returns a generic ISO date parser for parsing dates with a possible zone. |
| 558 | * It accepts formats described by the following syntax: |
| 559 | * <pre> |
| 560 | * date = date-element ['T' offset] |
| 561 | * date-element = std-date-element | ord-date-element | week-date-element |
| 562 | * std-date-element = yyyy ['-' MM ['-' dd]] |
| 563 | * ord-date-element = yyyy ['-' DDD] |
| 564 | * week-date-element = xxxx '-W' ww ['-' e] |
| 565 | * offset = 'Z' | (('+' | '-') HH [':' mm [':' ss [('.' | ',') SSS]]]) |
| 566 | * </pre> |
| 567 | */ |
| 568 | public static DateTimeFormatter dateParser() { |
| 569 | if (dp == null) { |
| 570 | DateTimeParser tOffset = new DateTimeFormatterBuilder() |
| 571 | .appendLiteral('T') |
| 572 | .append(offsetElement()).toParser(); |
| 573 | dp = new DateTimeFormatterBuilder() |
| 574 | .append(dateElementParser()) |
| 575 | .appendOptional(tOffset) |
| 576 | .toFormatter(); |
| 577 | } |
| 578 | return dp; |
| 579 | } |
| 580 | |
| 581 | /** |
| 582 | * Returns a generic ISO date parser for parsing local dates. |
| 583 | * This parser is initialised with the local (UTC) time zone. |
| 584 | * <p> |
| 585 | * It accepts formats described by the following syntax: |
| 586 | * <pre> |
| 587 | * date-element = std-date-element | ord-date-element | week-date-element |
| 588 | * std-date-element = yyyy ['-' MM ['-' dd]] |
| 589 | * ord-date-element = yyyy ['-' DDD] |
| 590 | * week-date-element = xxxx '-W' ww ['-' e] |
| 591 | * </pre> |
| 592 | * @since 1.3 |
| 593 | */ |
| 594 | public static DateTimeFormatter localDateParser() { |
| 595 | if (ldp == null) { |
| 596 | ldp = dateElementParser().withZone(DateTimeZone.UTC); |
| 597 | } |
| 598 | return ldp; |
| 599 | } |
| 600 | |
| 601 | /** |
| 602 | * Returns a generic ISO date parser for parsing dates. |
| 603 | * It accepts formats described by the following syntax: |
| 604 | * <pre> |
| 605 | * date-element = std-date-element | ord-date-element | week-date-element |
| 606 | * std-date-element = yyyy ['-' MM ['-' dd]] |
| 607 | * ord-date-element = yyyy ['-' DDD] |
| 608 | * week-date-element = xxxx '-W' ww ['-' e] |
| 609 | * </pre> |
| 610 | */ |
| 611 | public static DateTimeFormatter dateElementParser() { |
| 612 | if (dpe == null) { |
| 613 | dpe = new DateTimeFormatterBuilder() |
| 614 | .append(null, new DateTimeParser[] { |
| 615 | new DateTimeFormatterBuilder() |
| 616 | .append(yearElement()) |
| 617 | .appendOptional |
| 618 | (new DateTimeFormatterBuilder() |
| 619 | .append(monthElement()) |
| 620 | .appendOptional(dayOfMonthElement().getParser()) |
| 621 | .toParser()) |
| 622 | .toParser(), |
| 623 | new DateTimeFormatterBuilder() |
| 624 | .append(weekyearElement()) |
| 625 | .append(weekElement()) |
| 626 | .appendOptional(dayOfWeekElement().getParser()) |
| 627 | .toParser(), |
| 628 | new DateTimeFormatterBuilder() |
| 629 | .append(yearElement()) |
| 630 | .append(dayOfYearElement()) |
| 631 | .toParser() |
| 632 | }) |
| 633 | .toFormatter(); |
| 634 | } |
| 635 | return dpe; |
| 636 | } |
| 637 | |
| 638 | /** |
| 639 | * Returns a generic ISO time parser for parsing times with a possible zone. |
| 640 | * It accepts formats described by the following syntax: |
| 641 | * <pre> |
| 642 | * time = ['T'] time-element [offset] |
| 643 | * time-element = HH [minute-element] | [fraction] |
| 644 | * minute-element = ':' mm [second-element] | [fraction] |
| 645 | * second-element = ':' ss [fraction] |
| 646 | * fraction = ('.' | ',') digit+ |
| 647 | * offset = 'Z' | (('+' | '-') HH [':' mm [':' ss [('.' | ',') SSS]]]) |
| 648 | * </pre> |
| 649 | */ |
| 650 | public static DateTimeFormatter timeParser() { |
| 651 | if (tp == null) { |
| 652 | tp = new DateTimeFormatterBuilder() |
| 653 | .appendOptional(literalTElement().getParser()) |
| 654 | .append(timeElementParser()) |
| 655 | .appendOptional(offsetElement().getParser()) |
| 656 | .toFormatter(); |
| 657 | } |
| 658 | return tp; |
| 659 | } |
| 660 | |
| 661 | /** |
| 662 | * Returns a generic ISO time parser for parsing local times. |
| 663 | * This parser is initialised with the local (UTC) time zone. |
| 664 | * <p> |
| 665 | * It accepts formats described by the following syntax: |
| 666 | * <pre> |
| 667 | * time = ['T'] time-element |
| 668 | * time-element = HH [minute-element] | [fraction] |
| 669 | * minute-element = ':' mm [second-element] | [fraction] |
| 670 | * second-element = ':' ss [fraction] |
| 671 | * fraction = ('.' | ',') digit+ |
| 672 | * </pre> |
| 673 | * @since 1.3 |
| 674 | */ |
| 675 | public static DateTimeFormatter localTimeParser() { |
| 676 | if (ltp == null) { |
| 677 | ltp = new DateTimeFormatterBuilder() |
| 678 | .appendOptional(literalTElement().getParser()) |
| 679 | .append(timeElementParser()) |
| 680 | .toFormatter().withZone(DateTimeZone.UTC); |
| 681 | } |
| 682 | return ltp; |
| 683 | } |
| 684 | |
| 685 | /** |
| 686 | * Returns a generic ISO time parser. It accepts formats described by |
| 687 | * the following syntax: |
| 688 | * <pre> |
| 689 | * time-element = HH [minute-element] | [fraction] |
| 690 | * minute-element = ':' mm [second-element] | [fraction] |
| 691 | * second-element = ':' ss [fraction] |
| 692 | * fraction = ('.' | ',') digit+ |
| 693 | * </pre> |
| 694 | */ |
| 695 | public static DateTimeFormatter timeElementParser() { |
| 696 | if (tpe == null) { |
| 697 | // Decimal point can be either '.' or ',' |
| 698 | DateTimeParser decimalPoint = new DateTimeFormatterBuilder() |
| 699 | .append(null, new DateTimeParser[] { |
| 700 | new DateTimeFormatterBuilder() |
| 701 | .appendLiteral('.') |
| 702 | .toParser(), |
| 703 | new DateTimeFormatterBuilder() |
| 704 | .appendLiteral(',') |
| 705 | .toParser() |
| 706 | }) |
| 707 | .toParser(); |
| 708 | |
| 709 | tpe = new DateTimeFormatterBuilder() |
| 710 | // time-element |
| 711 | .append(hourElement()) |
| 712 | .append |
| 713 | (null, new DateTimeParser[] { |
| 714 | new DateTimeFormatterBuilder() |
| 715 | // minute-element |
| 716 | .append(minuteElement()) |
| 717 | .append |
| 718 | (null, new DateTimeParser[] { |
| 719 | new DateTimeFormatterBuilder() |
| 720 | // second-element |
| 721 | .append(secondElement()) |
| 722 | // second fraction |
| 723 | .appendOptional(new DateTimeFormatterBuilder() |
| 724 | .append(decimalPoint) |
| 725 | .appendFractionOfSecond(1, 9) |
| 726 | .toParser()) |
| 727 | .toParser(), |
| 728 | // minute fraction |
| 729 | new DateTimeFormatterBuilder() |
| 730 | .append(decimalPoint) |
| 731 | .appendFractionOfMinute(1, 9) |
| 732 | .toParser(), |
| 733 | null |
| 734 | }) |
| 735 | .toParser(), |
| 736 | // hour fraction |
| 737 | new DateTimeFormatterBuilder() |
| 738 | .append(decimalPoint) |
| 739 | .appendFractionOfHour(1, 9) |
| 740 | .toParser(), |
| 741 | null |
| 742 | }) |
| 743 | .toFormatter(); |
| 744 | } |
| 745 | return tpe; |
| 746 | } |
| 747 | |
| 748 | /** |
| 749 | * Returns a generic ISO datetime parser which parses either a date or |
| 750 | * a time or both. It accepts formats described by the following syntax: |
| 751 | * <pre> |
| 752 | * datetime = time | date-opt-time |
| 753 | * time = 'T' time-element [offset] |
| 754 | * date-opt-time = date-element ['T' [time-element] [offset]] |
| 755 | * date-element = std-date-element | ord-date-element | week-date-element |
| 756 | * std-date-element = yyyy ['-' MM ['-' dd]] |
| 757 | * ord-date-element = yyyy ['-' DDD] |
| 758 | * week-date-element = xxxx '-W' ww ['-' e] |
| 759 | * time-element = HH [minute-element] | [fraction] |
| 760 | * minute-element = ':' mm [second-element] | [fraction] |
| 761 | * second-element = ':' ss [fraction] |
| 762 | * fraction = ('.' | ',') digit+ |
| 763 | * offset = 'Z' | (('+' | '-') HH [':' mm [':' ss [('.' | ',') SSS]]]) |
| 764 | * </pre> |
| 765 | */ |
| 766 | public static DateTimeFormatter dateTimeParser() { |
| 767 | if (dtp == null) { |
| 768 | // This is different from the general time parser in that the 'T' |
| 769 | // is required. |
| 770 | DateTimeParser time = new DateTimeFormatterBuilder() |
| 771 | .appendLiteral('T') |
| 772 | .append(timeElementParser()) |
| 773 | .appendOptional(offsetElement().getParser()) |
| 774 | .toParser(); |
| 775 | dtp = new DateTimeFormatterBuilder() |
| 776 | .append(null, new DateTimeParser[] {time, dateOptionalTimeParser().getParser()}) |
| 777 | .toFormatter(); |
| 778 | } |
| 779 | return dtp; |
| 780 | } |
| 781 | |
| 782 | /** |
| 783 | * Returns a generic ISO datetime parser where the date is mandatory and |
| 784 | * the time is optional. This parser can parse zoned datetimes. |
| 785 | * It accepts formats described by the following syntax: |
| 786 | * <pre> |
| 787 | * date-opt-time = date-element ['T' [time-element] [offset]] |
| 788 | * date-element = std-date-element | ord-date-element | week-date-element |
| 789 | * std-date-element = yyyy ['-' MM ['-' dd]] |
| 790 | * ord-date-element = yyyy ['-' DDD] |
| 791 | * week-date-element = xxxx '-W' ww ['-' e] |
| 792 | * time-element = HH [minute-element] | [fraction] |
| 793 | * minute-element = ':' mm [second-element] | [fraction] |
| 794 | * second-element = ':' ss [fraction] |
| 795 | * fraction = ('.' | ',') digit+ |
| 796 | * </pre> |
| 797 | * @since 1.3 |
| 798 | */ |
| 799 | public static DateTimeFormatter dateOptionalTimeParser() { |
| 800 | if (dotp == null) { |
| 801 | DateTimeParser timeOrOffset = new DateTimeFormatterBuilder() |
| 802 | .appendLiteral('T') |
| 803 | .appendOptional(timeElementParser().getParser()) |
| 804 | .appendOptional(offsetElement().getParser()) |
| 805 | .toParser(); |
| 806 | dotp = new DateTimeFormatterBuilder() |
| 807 | .append(dateElementParser()) |
| 808 | .appendOptional(timeOrOffset) |
| 809 | .toFormatter(); |
| 810 | } |
| 811 | return dotp; |
| 812 | } |
| 813 | |
| 814 | /** |
| 815 | * Returns a generic ISO datetime parser where the date is mandatory and |
| 816 | * the time is optional. This parser only parses local datetimes. |
| 817 | * This parser is initialised with the local (UTC) time zone. |
| 818 | * <p> |
| 819 | * It accepts formats described by the following syntax: |
| 820 | * <pre> |
| 821 | * datetime = date-element ['T' time-element] |
| 822 | * date-element = std-date-element | ord-date-element | week-date-element |
| 823 | * std-date-element = yyyy ['-' MM ['-' dd]] |
| 824 | * ord-date-element = yyyy ['-' DDD] |
| 825 | * week-date-element = xxxx '-W' ww ['-' e] |
| 826 | * time-element = HH [minute-element] | [fraction] |
| 827 | * minute-element = ':' mm [second-element] | [fraction] |
| 828 | * second-element = ':' ss [fraction] |
| 829 | * fraction = ('.' | ',') digit+ |
| 830 | * </pre> |
| 831 | * @since 1.3 |
| 832 | */ |
| 833 | public static DateTimeFormatter localDateOptionalTimeParser() { |
| 834 | if (ldotp == null) { |
| 835 | DateTimeParser time = new DateTimeFormatterBuilder() |
| 836 | .appendLiteral('T') |
| 837 | .append(timeElementParser()) |
| 838 | .toParser(); |
| 839 | ldotp = new DateTimeFormatterBuilder() |
| 840 | .append(dateElementParser()) |
| 841 | .appendOptional(time) |
| 842 | .toFormatter().withZone(DateTimeZone.UTC); |
| 843 | } |
| 844 | return ldotp; |
| 845 | } |
| 846 | |
| 847 | //----------------------------------------------------------------------- |
| 848 | /** |
| 849 | * Returns a formatter for a full date as four digit year, two digit month |
| 850 | * of year, and two digit day of month (yyyy-MM-dd). |
| 851 | * |
| 852 | * @return a formatter for yyyy-MM-dd |
| 853 | */ |
| 854 | public static DateTimeFormatter date() { |
| 855 | return yearMonthDay(); |
| 856 | } |
| 857 | |
| 858 | /** |
| 859 | * Returns a formatter for a two digit hour of day, two digit minute of |
| 860 | * hour, two digit second of minute, three digit fraction of second, and |
| 861 | * time zone offset (HH:mm:ss.SSSZZ). |
| 862 | * The time zone offset is 'Z' for zero, and of the form '\u00b1HH:mm' for non-zero. |
| 863 | * |
| 864 | * @return a formatter for HH:mm:ss.SSSZZ |
| 865 | */ |
| 866 | public static DateTimeFormatter time() { |
| 867 | if (t == null) { |
| 868 | t = new DateTimeFormatterBuilder() |
| 869 | .append(hourMinuteSecondFraction()) |
| 870 | .append(offsetElement()) |
| 871 | .toFormatter(); |
| 872 | } |
| 873 | return t; |
| 874 | } |
| 875 | |
| 876 | /** |
| 877 | * Returns a formatter for a two digit hour of day, two digit minute of |
| 878 | * hour, two digit second of minute, and time zone offset (HH:mm:ssZZ). |
| 879 | * The time zone offset is 'Z' for zero, and of the form '\u00b1HH:mm' for non-zero. |
| 880 | * |
| 881 | * @return a formatter for HH:mm:ssZZ |
| 882 | */ |
| 883 | public static DateTimeFormatter timeNoMillis() { |
| 884 | if (tx == null) { |
| 885 | tx = new DateTimeFormatterBuilder() |
| 886 | .append(hourMinuteSecond()) |
| 887 | .append(offsetElement()) |
| 888 | .toFormatter(); |
| 889 | } |
| 890 | return tx; |
| 891 | } |
| 892 | |
| 893 | /** |
| 894 | * Returns a formatter for a two digit hour of day, two digit minute of |
| 895 | * hour, two digit second of minute, three digit fraction of second, and |
| 896 | * time zone offset prefixed by 'T' ('T'HH:mm:ss.SSSZZ). |
| 897 | * The time zone offset is 'Z' for zero, and of the form '\u00b1HH:mm' for non-zero. |
| 898 | * |
| 899 | * @return a formatter for 'T'HH:mm:ss.SSSZZ |
| 900 | */ |
| 901 | public static DateTimeFormatter tTime() { |
| 902 | if (tt == null) { |
| 903 | tt = new DateTimeFormatterBuilder() |
| 904 | .append(literalTElement()) |
| 905 | .append(time()) |
| 906 | .toFormatter(); |
| 907 | } |
| 908 | return tt; |
| 909 | } |
| 910 | |
| 911 | /** |
| 912 | * Returns a formatter for a two digit hour of day, two digit minute of |
| 913 | * hour, two digit second of minute, and time zone offset prefixed |
| 914 | * by 'T' ('T'HH:mm:ssZZ). |
| 915 | * The time zone offset is 'Z' for zero, and of the form '\u00b1HH:mm' for non-zero. |
| 916 | * |
| 917 | * @return a formatter for 'T'HH:mm:ssZZ |
| 918 | */ |
| 919 | public static DateTimeFormatter tTimeNoMillis() { |
| 920 | if (ttx == null) { |
| 921 | ttx = new DateTimeFormatterBuilder() |
| 922 | .append(literalTElement()) |
| 923 | .append(timeNoMillis()) |
| 924 | .toFormatter(); |
| 925 | } |
| 926 | return ttx; |
| 927 | } |
| 928 | |
| 929 | /** |
| 930 | * Returns a formatter that combines a full date and time, separated by a 'T' |
| 931 | * (yyyy-MM-dd'T'HH:mm:ss.SSSZZ). |
| 932 | * The time zone offset is 'Z' for zero, and of the form '\u00b1HH:mm' for non-zero. |
| 933 | * |
| 934 | * @return a formatter for yyyy-MM-dd'T'HH:mm:ss.SSSZZ |
| 935 | */ |
| 936 | public static DateTimeFormatter dateTime() { |
| 937 | if (dt == null) { |
| 938 | dt = new DateTimeFormatterBuilder() |
| 939 | .append(date()) |
| 940 | .append(tTime()) |
| 941 | .toFormatter(); |
| 942 | } |
| 943 | return dt; |
| 944 | } |
| 945 | |
| 946 | /** |
| 947 | * Returns a formatter that combines a full date and time without millis, |
| 948 | * separated by a 'T' (yyyy-MM-dd'T'HH:mm:ssZZ). |
| 949 | * The time zone offset is 'Z' for zero, and of the form '\u00b1HH:mm' for non-zero. |
| 950 | * |
| 951 | * @return a formatter for yyyy-MM-dd'T'HH:mm:ssZZ |
| 952 | */ |
| 953 | public static DateTimeFormatter dateTimeNoMillis() { |
| 954 | if (dtx == null) { |
| 955 | dtx = new DateTimeFormatterBuilder() |
| 956 | .append(date()) |
| 957 | .append(tTimeNoMillis()) |
| 958 | .toFormatter(); |
| 959 | } |
| 960 | return dtx; |
| 961 | } |
| 962 | |
| 963 | /** |
| 964 | * Returns a formatter for a full ordinal date, using a four |
| 965 | * digit year and three digit dayOfYear (yyyy-DDD). |
| 966 | * |
| 967 | * @return a formatter for yyyy-DDD |
| 968 | * @since 1.1 |
| 969 | */ |
| 970 | public static DateTimeFormatter ordinalDate() { |
| 971 | if (od == null) { |
| 972 | od = new DateTimeFormatterBuilder() |
| 973 | .append(yearElement()) |
| 974 | .append(dayOfYearElement()) |
| 975 | .toFormatter(); |
| 976 | } |
| 977 | return od; |
| 978 | } |
| 979 | |
| 980 | /** |
| 981 | * Returns a formatter for a full ordinal date and time, using a four |
| 982 | * digit year and three digit dayOfYear (yyyy-DDD'T'HH:mm:ss.SSSZZ). |
| 983 | * The time zone offset is 'Z' for zero, and of the form '\u00b1HH:mm' for non-zero. |
| 984 | * |
| 985 | * @return a formatter for yyyy-DDD'T'HH:mm:ss.SSSZZ |
| 986 | * @since 1.1 |
| 987 | */ |
| 988 | public static DateTimeFormatter ordinalDateTime() { |
| 989 | if (odt == null) { |
| 990 | odt = new DateTimeFormatterBuilder() |
| 991 | .append(ordinalDate()) |
| 992 | .append(tTime()) |
| 993 | .toFormatter(); |
| 994 | } |
| 995 | return odt; |
| 996 | } |
| 997 | |
| 998 | /** |
| 999 | * Returns a formatter for a full ordinal date and time without millis, |
| 1000 | * using a four digit year and three digit dayOfYear (yyyy-DDD'T'HH:mm:ssZZ). |
| 1001 | * The time zone offset is 'Z' for zero, and of the form '\u00b1HH:mm' for non-zero. |
| 1002 | * |
| 1003 | * @return a formatter for yyyy-DDD'T'HH:mm:ssZZ |
| 1004 | * @since 1.1 |
| 1005 | */ |
| 1006 | public static DateTimeFormatter ordinalDateTimeNoMillis() { |
| 1007 | if (odtx == null) { |
| 1008 | odtx = new DateTimeFormatterBuilder() |
| 1009 | .append(ordinalDate()) |
| 1010 | .append(tTimeNoMillis()) |
| 1011 | .toFormatter(); |
| 1012 | } |
| 1013 | return odtx; |
| 1014 | } |
| 1015 | |
| 1016 | /** |
| 1017 | * Returns a formatter for a full date as four digit weekyear, two digit |
| 1018 | * week of weekyear, and one digit day of week (xxxx-'W'ww-e). |
| 1019 | * |
| 1020 | * @return a formatter for xxxx-'W'ww-e |
| 1021 | */ |
| 1022 | public static DateTimeFormatter weekDate() { |
| 1023 | return weekyearWeekDay(); |
| 1024 | } |
| 1025 | |
| 1026 | /** |
| 1027 | * Returns a formatter that combines a full weekyear date and time, |
| 1028 | * separated by a 'T' (xxxx-'W'ww-e'T'HH:mm:ss.SSSZZ). |
| 1029 | * The time zone offset is 'Z' for zero, and of the form '\u00b1HH:mm' for non-zero. |
| 1030 | * |
| 1031 | * @return a formatter for xxxx-'W'ww-e'T'HH:mm:ss.SSSZZ |
| 1032 | */ |
| 1033 | public static DateTimeFormatter weekDateTime() { |
| 1034 | if (wdt == null) { |
| 1035 | wdt = new DateTimeFormatterBuilder() |
| 1036 | .append(weekDate()) |
| 1037 | .append(tTime()) |
| 1038 | .toFormatter(); |
| 1039 | } |
| 1040 | return wdt; |
| 1041 | } |
| 1042 | |
| 1043 | /** |
| 1044 | * Returns a formatter that combines a full weekyear date and time without millis, |
| 1045 | * separated by a 'T' (xxxx-'W'ww-e'T'HH:mm:ssZZ). |
| 1046 | * The time zone offset is 'Z' for zero, and of the form '\u00b1HH:mm' for non-zero. |
| 1047 | * |
| 1048 | * @return a formatter for xxxx-'W'ww-e'T'HH:mm:ssZZ |
| 1049 | */ |
| 1050 | public static DateTimeFormatter weekDateTimeNoMillis() { |
| 1051 | if (wdtx == null) { |
| 1052 | wdtx = new DateTimeFormatterBuilder() |
| 1053 | .append(weekDate()) |
| 1054 | .append(tTimeNoMillis()) |
| 1055 | .toFormatter(); |
| 1056 | } |
| 1057 | return wdtx; |
| 1058 | } |
| 1059 | |
| 1060 | //----------------------------------------------------------------------- |
| 1061 | /** |
| 1062 | * Returns a basic formatter for a full date as four digit year, two digit |
| 1063 | * month of year, and two digit day of month (yyyyMMdd). |
| 1064 | * |
| 1065 | * @return a formatter for yyyyMMdd |
| 1066 | */ |
| 1067 | public static DateTimeFormatter basicDate() { |
| 1068 | if (bd == null) { |
| 1069 | bd = new DateTimeFormatterBuilder() |
| 1070 | .appendYear(4, 4) |
| 1071 | .appendFixedDecimal(DateTimeFieldType.monthOfYear(), 2) |
| 1072 | .appendFixedDecimal(DateTimeFieldType.dayOfMonth(), 2) |
| 1073 | .toFormatter(); |
| 1074 | } |
| 1075 | return bd; |
| 1076 | } |
| 1077 | |
| 1078 | /** |
| 1079 | * Returns a basic formatter for a two digit hour of day, two digit minute |
| 1080 | * of hour, two digit second of minute, three digit millis, and time zone |
| 1081 | * offset (HHmmss.SSSZ). |
| 1082 | * The time zone offset is 'Z' for zero, and of the form '\u00b1HHmm' for non-zero. |
| 1083 | * |
| 1084 | * @return a formatter for HHmmss.SSSZ |
| 1085 | */ |
| 1086 | public static DateTimeFormatter basicTime() { |
| 1087 | if (bt == null) { |
| 1088 | bt = new DateTimeFormatterBuilder() |
| 1089 | .appendFixedDecimal(DateTimeFieldType.hourOfDay(), 2) |
| 1090 | .appendFixedDecimal(DateTimeFieldType.minuteOfHour(), 2) |
| 1091 | .appendFixedDecimal(DateTimeFieldType.secondOfMinute(), 2) |
| 1092 | .appendLiteral('.') |
| 1093 | .appendFractionOfSecond(3, 9) |
| 1094 | .appendTimeZoneOffset("Z", false, 2, 2) |
| 1095 | .toFormatter(); |
| 1096 | } |
| 1097 | return bt; |
| 1098 | } |
| 1099 | |
| 1100 | /** |
| 1101 | * Returns a basic formatter for a two digit hour of day, two digit minute |
| 1102 | * of hour, two digit second of minute, and time zone offset (HHmmssZ). |
| 1103 | * The time zone offset is 'Z' for zero, and of the form '\u00b1HHmm' for non-zero. |
| 1104 | * |
| 1105 | * @return a formatter for HHmmssZ |
| 1106 | */ |
| 1107 | public static DateTimeFormatter basicTimeNoMillis() { |
| 1108 | if (btx == null) { |
| 1109 | btx = new DateTimeFormatterBuilder() |
| 1110 | .appendFixedDecimal(DateTimeFieldType.hourOfDay(), 2) |
| 1111 | .appendFixedDecimal(DateTimeFieldType.minuteOfHour(), 2) |
| 1112 | .appendFixedDecimal(DateTimeFieldType.secondOfMinute(), 2) |
| 1113 | .appendTimeZoneOffset("Z", false, 2, 2) |
| 1114 | .toFormatter(); |
| 1115 | } |
| 1116 | return btx; |
| 1117 | } |
| 1118 | |
| 1119 | /** |
| 1120 | * Returns a basic formatter for a two digit hour of day, two digit minute |
| 1121 | * of hour, two digit second of minute, three digit millis, and time zone |
| 1122 | * offset prefixed by 'T' ('T'HHmmss.SSSZ). |
| 1123 | * The time zone offset is 'Z' for zero, and of the form '\u00b1HHmm' for non-zero. |
| 1124 | * |
| 1125 | * @return a formatter for 'T'HHmmss.SSSZ |
| 1126 | */ |
| 1127 | public static DateTimeFormatter basicTTime() { |
| 1128 | if (btt == null) { |
| 1129 | btt = new DateTimeFormatterBuilder() |
| 1130 | .append(literalTElement()) |
| 1131 | .append(basicTime()) |
| 1132 | .toFormatter(); |
| 1133 | } |
| 1134 | return btt; |
| 1135 | } |
| 1136 | |
| 1137 | /** |
| 1138 | * Returns a basic formatter for a two digit hour of day, two digit minute |
| 1139 | * of hour, two digit second of minute, and time zone offset prefixed by 'T' |
| 1140 | * ('T'HHmmssZ). |
| 1141 | * The time zone offset is 'Z' for zero, and of the form '\u00b1HHmm' for non-zero. |
| 1142 | * |
| 1143 | * @return a formatter for 'T'HHmmssZ |
| 1144 | */ |
| 1145 | public static DateTimeFormatter basicTTimeNoMillis() { |
| 1146 | if (bttx == null) { |
| 1147 | bttx = new DateTimeFormatterBuilder() |
| 1148 | .append(literalTElement()) |
| 1149 | .append(basicTimeNoMillis()) |
| 1150 | .toFormatter(); |
| 1151 | } |
| 1152 | return bttx; |
| 1153 | } |
| 1154 | |
| 1155 | /** |
| 1156 | * Returns a basic formatter that combines a basic date and time, separated |
| 1157 | * by a 'T' (yyyyMMdd'T'HHmmss.SSSZ). |
| 1158 | * The time zone offset is 'Z' for zero, and of the form '\u00b1HHmm' for non-zero. |
| 1159 | * |
| 1160 | * @return a formatter for yyyyMMdd'T'HHmmss.SSSZ |
| 1161 | */ |
| 1162 | public static DateTimeFormatter basicDateTime() { |
| 1163 | if (bdt == null) { |
| 1164 | bdt = new DateTimeFormatterBuilder() |
| 1165 | .append(basicDate()) |
| 1166 | .append(basicTTime()) |
| 1167 | .toFormatter(); |
| 1168 | } |
| 1169 | return bdt; |
| 1170 | } |
| 1171 | |
| 1172 | /** |
| 1173 | * Returns a basic formatter that combines a basic date and time without millis, |
| 1174 | * separated by a 'T' (yyyyMMdd'T'HHmmssZ). |
| 1175 | * The time zone offset is 'Z' for zero, and of the form '\u00b1HHmm' for non-zero. |
| 1176 | * |
| 1177 | * @return a formatter for yyyyMMdd'T'HHmmssZ |
| 1178 | */ |
| 1179 | public static DateTimeFormatter basicDateTimeNoMillis() { |
| 1180 | if (bdtx == null) { |
| 1181 | bdtx = new DateTimeFormatterBuilder() |
| 1182 | .append(basicDate()) |
| 1183 | .append(basicTTimeNoMillis()) |
| 1184 | .toFormatter(); |
| 1185 | } |
| 1186 | return bdtx; |
| 1187 | } |
| 1188 | |
| 1189 | /** |
| 1190 | * Returns a formatter for a full ordinal date, using a four |
| 1191 | * digit year and three digit dayOfYear (yyyyDDD). |
| 1192 | * |
| 1193 | * @return a formatter for yyyyDDD |
| 1194 | * @since 1.1 |
| 1195 | */ |
| 1196 | public static DateTimeFormatter basicOrdinalDate() { |
| 1197 | if (bod == null) { |
| 1198 | bod = new DateTimeFormatterBuilder() |
| 1199 | .appendYear(4, 4) |
| 1200 | .appendFixedDecimal(DateTimeFieldType.dayOfYear(), 3) |
| 1201 | .toFormatter(); |
| 1202 | } |
| 1203 | return bod; |
| 1204 | } |
| 1205 | |
| 1206 | /** |
| 1207 | * Returns a formatter for a full ordinal date and time, using a four |
| 1208 | * digit year and three digit dayOfYear (yyyyDDD'T'HHmmss.SSSZ). |
| 1209 | * The time zone offset is 'Z' for zero, and of the form '\u00b1HHmm' for non-zero. |
| 1210 | * |
| 1211 | * @return a formatter for yyyyDDD'T'HHmmss.SSSZ |
| 1212 | * @since 1.1 |
| 1213 | */ |
| 1214 | public static DateTimeFormatter basicOrdinalDateTime() { |
| 1215 | if (bodt == null) { |
| 1216 | bodt = new DateTimeFormatterBuilder() |
| 1217 | .append(basicOrdinalDate()) |
| 1218 | .append(basicTTime()) |
| 1219 | .toFormatter(); |
| 1220 | } |
| 1221 | return bodt; |
| 1222 | } |
| 1223 | |
| 1224 | /** |
| 1225 | * Returns a formatter for a full ordinal date and time without millis, |
| 1226 | * using a four digit year and three digit dayOfYear (yyyyDDD'T'HHmmssZ). |
| 1227 | * The time zone offset is 'Z' for zero, and of the form '\u00b1HHmm' for non-zero. |
| 1228 | * |
| 1229 | * @return a formatter for yyyyDDD'T'HHmmssZ |
| 1230 | * @since 1.1 |
| 1231 | */ |
| 1232 | public static DateTimeFormatter basicOrdinalDateTimeNoMillis() { |
| 1233 | if (bodtx == null) { |
| 1234 | bodtx = new DateTimeFormatterBuilder() |
| 1235 | .append(basicOrdinalDate()) |
| 1236 | .append(basicTTimeNoMillis()) |
| 1237 | .toFormatter(); |
| 1238 | } |
| 1239 | return bodtx; |
| 1240 | } |
| 1241 | |
| 1242 | /** |
| 1243 | * Returns a basic formatter for a full date as four digit weekyear, two |
| 1244 | * digit week of weekyear, and one digit day of week (xxxx'W'wwe). |
| 1245 | * |
| 1246 | * @return a formatter for xxxx'W'wwe |
| 1247 | */ |
| 1248 | public static DateTimeFormatter basicWeekDate() { |
| 1249 | if (bwd == null) { |
| 1250 | bwd = new DateTimeFormatterBuilder() |
| 1251 | .appendWeekyear(4, 4) |
| 1252 | .appendLiteral('W') |
| 1253 | .appendFixedDecimal(DateTimeFieldType.weekOfWeekyear(), 2) |
| 1254 | .appendFixedDecimal(DateTimeFieldType.dayOfWeek(), 1) |
| 1255 | .toFormatter(); |
| 1256 | } |
| 1257 | return bwd; |
| 1258 | } |
| 1259 | |
| 1260 | /** |
| 1261 | * Returns a basic formatter that combines a basic weekyear date and time, |
| 1262 | * separated by a 'T' (xxxx'W'wwe'T'HHmmss.SSSZ). |
| 1263 | * The time zone offset is 'Z' for zero, and of the form '\u00b1HHmm' for non-zero. |
| 1264 | * |
| 1265 | * @return a formatter for xxxx'W'wwe'T'HHmmss.SSSZ |
| 1266 | */ |
| 1267 | public static DateTimeFormatter basicWeekDateTime() { |
| 1268 | if (bwdt == null) { |
| 1269 | bwdt = new DateTimeFormatterBuilder() |
| 1270 | .append(basicWeekDate()) |
| 1271 | .append(basicTTime()) |
| 1272 | .toFormatter(); |
| 1273 | } |
| 1274 | return bwdt; |
| 1275 | } |
| 1276 | |
| 1277 | /** |
| 1278 | * Returns a basic formatter that combines a basic weekyear date and time |
| 1279 | * without millis, separated by a 'T' (xxxx'W'wwe'T'HHmmssZ). |
| 1280 | * The time zone offset is 'Z' for zero, and of the form '\u00b1HHmm' for non-zero. |
| 1281 | * |
| 1282 | * @return a formatter for xxxx'W'wwe'T'HHmmssZ |
| 1283 | */ |
| 1284 | public static DateTimeFormatter basicWeekDateTimeNoMillis() { |
| 1285 | if (bwdtx == null) { |
| 1286 | bwdtx = new DateTimeFormatterBuilder() |
| 1287 | .append(basicWeekDate()) |
| 1288 | .append(basicTTimeNoMillis()) |
| 1289 | .toFormatter(); |
| 1290 | } |
| 1291 | return bwdtx; |
| 1292 | } |
| 1293 | |
| 1294 | //----------------------------------------------------------------------- |
| 1295 | /** |
| 1296 | * Returns a formatter for a four digit year. (yyyy) |
| 1297 | * |
| 1298 | * @return a formatter for yyyy |
| 1299 | */ |
| 1300 | public static DateTimeFormatter year() { |
| 1301 | return yearElement(); |
| 1302 | } |
| 1303 | |
| 1304 | /** |
| 1305 | * Returns a formatter for a four digit year and two digit month of |
| 1306 | * year. (yyyy-MM) |
| 1307 | * |
| 1308 | * @return a formatter for yyyy-MM |
| 1309 | */ |
| 1310 | public static DateTimeFormatter yearMonth() { |
| 1311 | if (ym == null) { |
| 1312 | ym = new DateTimeFormatterBuilder() |
| 1313 | .append(yearElement()) |
| 1314 | .append(monthElement()) |
| 1315 | .toFormatter(); |
| 1316 | } |
| 1317 | return ym; |
| 1318 | } |
| 1319 | |
| 1320 | /** |
| 1321 | * Returns a formatter for a four digit year, two digit month of year, and |
| 1322 | * two digit day of month. (yyyy-MM-dd) |
| 1323 | * |
| 1324 | * @return a formatter for yyyy-MM-dd |
| 1325 | */ |
| 1326 | public static DateTimeFormatter yearMonthDay() { |
| 1327 | if (ymd == null) { |
| 1328 | ymd = new DateTimeFormatterBuilder() |
| 1329 | .append(yearElement()) |
| 1330 | .append(monthElement()) |
| 1331 | .append(dayOfMonthElement()) |
| 1332 | .toFormatter(); |
| 1333 | } |
| 1334 | return ymd; |
| 1335 | } |
| 1336 | |
| 1337 | /** |
| 1338 | * Returns a formatter for a four digit weekyear. (xxxx) |
| 1339 | * |
| 1340 | * @return a formatter for xxxx |
| 1341 | */ |
| 1342 | public static DateTimeFormatter weekyear() { |
| 1343 | return weekyearElement(); |
| 1344 | } |
| 1345 | |
| 1346 | /** |
| 1347 | * Returns a formatter for a four digit weekyear and two digit week of |
| 1348 | * weekyear. (xxxx-'W'ww) |
| 1349 | * |
| 1350 | * @return a formatter for xxxx-'W'ww |
| 1351 | */ |
| 1352 | public static DateTimeFormatter weekyearWeek() { |
| 1353 | if (ww == null) { |
| 1354 | ww = new DateTimeFormatterBuilder() |
| 1355 | .append(weekyearElement()) |
| 1356 | .append(weekElement()) |
| 1357 | .toFormatter(); |
| 1358 | } |
| 1359 | return ww; |
| 1360 | } |
| 1361 | |
| 1362 | /** |
| 1363 | * Returns a formatter for a four digit weekyear, two digit week of |
| 1364 | * weekyear, and one digit day of week. (xxxx-'W'ww-e) |
| 1365 | * |
| 1366 | * @return a formatter for xxxx-'W'ww-e |
| 1367 | */ |
| 1368 | public static DateTimeFormatter weekyearWeekDay() { |
| 1369 | if (wwd == null) { |
| 1370 | wwd = new DateTimeFormatterBuilder() |
| 1371 | .append(weekyearElement()) |
| 1372 | .append(weekElement()) |
| 1373 | .append(dayOfWeekElement()) |
| 1374 | .toFormatter(); |
| 1375 | } |
| 1376 | return wwd; |
| 1377 | } |
| 1378 | |
| 1379 | /** |
| 1380 | * Returns a formatter for a two digit hour of day. (HH) |
| 1381 | * |
| 1382 | * @return a formatter for HH |
| 1383 | */ |
| 1384 | public static DateTimeFormatter hour() { |
| 1385 | return hourElement(); |
| 1386 | } |
| 1387 | |
| 1388 | /** |
| 1389 | * Returns a formatter for a two digit hour of day and two digit minute of |
| 1390 | * hour. (HH:mm) |
| 1391 | * |
| 1392 | * @return a formatter for HH:mm |
| 1393 | */ |
| 1394 | public static DateTimeFormatter hourMinute() { |
| 1395 | if (hm == null) { |
| 1396 | hm = new DateTimeFormatterBuilder() |
| 1397 | .append(hourElement()) |
| 1398 | .append(minuteElement()) |
| 1399 | .toFormatter(); |
| 1400 | } |
| 1401 | return hm; |
| 1402 | } |
| 1403 | |
| 1404 | /** |
| 1405 | * Returns a formatter for a two digit hour of day, two digit minute of |
| 1406 | * hour, and two digit second of minute. (HH:mm:ss) |
| 1407 | * |
| 1408 | * @return a formatter for HH:mm:ss |
| 1409 | */ |
| 1410 | public static DateTimeFormatter hourMinuteSecond() { |
| 1411 | if (hms == null) { |
| 1412 | hms = new DateTimeFormatterBuilder() |
| 1413 | .append(hourElement()) |
| 1414 | .append(minuteElement()) |
| 1415 | .append(secondElement()) |
| 1416 | .toFormatter(); |
| 1417 | } |
| 1418 | return hms; |
| 1419 | } |
| 1420 | |
| 1421 | /** |
| 1422 | * Returns a formatter for a two digit hour of day, two digit minute of |
| 1423 | * hour, two digit second of minute, and three digit fraction of |
| 1424 | * second (HH:mm:ss.SSS). Parsing will parse up to 3 fractional second |
| 1425 | * digits. |
| 1426 | * |
| 1427 | * @return a formatter for HH:mm:ss.SSS |
| 1428 | */ |
| 1429 | public static DateTimeFormatter hourMinuteSecondMillis() { |
| 1430 | if (hmsl == null) { |
| 1431 | hmsl = new DateTimeFormatterBuilder() |
| 1432 | .append(hourElement()) |
| 1433 | .append(minuteElement()) |
| 1434 | .append(secondElement()) |
| 1435 | .appendLiteral('.') |
| 1436 | .appendFractionOfSecond(3, 3) |
| 1437 | .toFormatter(); |
| 1438 | } |
| 1439 | return hmsl; |
| 1440 | } |
| 1441 | |
| 1442 | /** |
| 1443 | * Returns a formatter for a two digit hour of day, two digit minute of |
| 1444 | * hour, two digit second of minute, and three digit fraction of |
| 1445 | * second (HH:mm:ss.SSS). Parsing will parse up to 9 fractional second |
| 1446 | * digits, throwing away all except the first three. |
| 1447 | * |
| 1448 | * @return a formatter for HH:mm:ss.SSS |
| 1449 | */ |
| 1450 | public static DateTimeFormatter hourMinuteSecondFraction() { |
| 1451 | if (hmsf == null) { |
| 1452 | hmsf = new DateTimeFormatterBuilder() |
| 1453 | .append(hourElement()) |
| 1454 | .append(minuteElement()) |
| 1455 | .append(secondElement()) |
| 1456 | .append(fractionElement()) |
| 1457 | .toFormatter(); |
| 1458 | } |
| 1459 | return hmsf; |
| 1460 | } |
| 1461 | |
| 1462 | /** |
| 1463 | * Returns a formatter that combines a full date and two digit hour of |
| 1464 | * day. (yyyy-MM-dd'T'HH) |
| 1465 | * |
| 1466 | * @return a formatter for yyyy-MM-dd'T'HH |
| 1467 | */ |
| 1468 | public static DateTimeFormatter dateHour() { |
| 1469 | if (dh == null) { |
| 1470 | dh = new DateTimeFormatterBuilder() |
| 1471 | .append(date()) |
| 1472 | .append(literalTElement()) |
| 1473 | .append(hour()) |
| 1474 | .toFormatter(); |
| 1475 | } |
| 1476 | return dh; |
| 1477 | } |
| 1478 | |
| 1479 | /** |
| 1480 | * Returns a formatter that combines a full date, two digit hour of day, |
| 1481 | * and two digit minute of hour. (yyyy-MM-dd'T'HH:mm) |
| 1482 | * |
| 1483 | * @return a formatter for yyyy-MM-dd'T'HH:mm |
| 1484 | */ |
| 1485 | public static DateTimeFormatter dateHourMinute() { |
| 1486 | if (dhm == null) { |
| 1487 | dhm = new DateTimeFormatterBuilder() |
| 1488 | .append(date()) |
| 1489 | .append(literalTElement()) |
| 1490 | .append(hourMinute()) |
| 1491 | .toFormatter(); |
| 1492 | } |
| 1493 | return dhm; |
| 1494 | } |
| 1495 | |
| 1496 | /** |
| 1497 | * Returns a formatter that combines a full date, two digit hour of day, |
| 1498 | * two digit minute of hour, and two digit second of |
| 1499 | * minute. (yyyy-MM-dd'T'HH:mm:ss) |
| 1500 | * |
| 1501 | * @return a formatter for yyyy-MM-dd'T'HH:mm:ss |
| 1502 | */ |
| 1503 | public static DateTimeFormatter dateHourMinuteSecond() { |
| 1504 | if (dhms == null) { |
| 1505 | dhms = new DateTimeFormatterBuilder() |
| 1506 | .append(date()) |
| 1507 | .append(literalTElement()) |
| 1508 | .append(hourMinuteSecond()) |
| 1509 | .toFormatter(); |
| 1510 | } |
| 1511 | return dhms; |
| 1512 | } |
| 1513 | |
| 1514 | /** |
| 1515 | * Returns a formatter that combines a full date, two digit hour of day, |
| 1516 | * two digit minute of hour, two digit second of minute, and three digit |
| 1517 | * fraction of second (yyyy-MM-dd'T'HH:mm:ss.SSS). Parsing will parse up |
| 1518 | * to 3 fractional second digits. |
| 1519 | * |
| 1520 | * @return a formatter for yyyy-MM-dd'T'HH:mm:ss.SSS |
| 1521 | */ |
| 1522 | public static DateTimeFormatter dateHourMinuteSecondMillis() { |
| 1523 | if (dhmsl == null) { |
| 1524 | dhmsl = new DateTimeFormatterBuilder() |
| 1525 | .append(date()) |
| 1526 | .append(literalTElement()) |
| 1527 | .append(hourMinuteSecondMillis()) |
| 1528 | .toFormatter(); |
| 1529 | } |
| 1530 | return dhmsl; |
| 1531 | } |
| 1532 | |
| 1533 | /** |
| 1534 | * Returns a formatter that combines a full date, two digit hour of day, |
| 1535 | * two digit minute of hour, two digit second of minute, and three digit |
| 1536 | * fraction of second (yyyy-MM-dd'T'HH:mm:ss.SSS). Parsing will parse up |
| 1537 | * to 9 fractional second digits, throwing away all except the first three. |
| 1538 | * |
| 1539 | * @return a formatter for yyyy-MM-dd'T'HH:mm:ss.SSS |
| 1540 | */ |
| 1541 | public static DateTimeFormatter dateHourMinuteSecondFraction() { |
| 1542 | if (dhmsf == null) { |
| 1543 | dhmsf = new DateTimeFormatterBuilder() |
| 1544 | .append(date()) |
| 1545 | .append(literalTElement()) |
| 1546 | .append(hourMinuteSecondFraction()) |
| 1547 | .toFormatter(); |
| 1548 | } |
| 1549 | return dhmsf; |
| 1550 | } |
| 1551 | |
| 1552 | //----------------------------------------------------------------------- |
| 1553 | private static DateTimeFormatter yearElement() { |
| 1554 | if (ye == null) { |
| 1555 | ye = new DateTimeFormatterBuilder() |
| 1556 | .appendYear(4, 9) |
| 1557 | .toFormatter(); |
| 1558 | } |
| 1559 | return ye; |
| 1560 | } |
| 1561 | |
| 1562 | private static DateTimeFormatter monthElement() { |
| 1563 | if (mye == null) { |
| 1564 | mye = new DateTimeFormatterBuilder() |
| 1565 | .appendLiteral('-') |
| 1566 | .appendMonthOfYear(2) |
| 1567 | .toFormatter(); |
| 1568 | } |
| 1569 | return mye; |
| 1570 | } |
| 1571 | |
| 1572 | private static DateTimeFormatter dayOfMonthElement() { |
| 1573 | if (dme == null) { |
| 1574 | dme = new DateTimeFormatterBuilder() |
| 1575 | .appendLiteral('-') |
| 1576 | .appendDayOfMonth(2) |
| 1577 | .toFormatter(); |
| 1578 | } |
| 1579 | return dme; |
| 1580 | } |
| 1581 | |
| 1582 | private static DateTimeFormatter weekyearElement() { |
| 1583 | if (we == null) { |
| 1584 | we = new DateTimeFormatterBuilder() |
| 1585 | .appendWeekyear(4, 9) |
| 1586 | .toFormatter(); |
| 1587 | } |
| 1588 | return we; |
| 1589 | } |
| 1590 | |
| 1591 | private static DateTimeFormatter weekElement() { |
| 1592 | if (wwe == null) { |
| 1593 | wwe = new DateTimeFormatterBuilder() |
| 1594 | .appendLiteral("-W") |
| 1595 | .appendWeekOfWeekyear(2) |
| 1596 | .toFormatter(); |
| 1597 | } |
| 1598 | return wwe; |
| 1599 | } |
| 1600 | |
| 1601 | private static DateTimeFormatter dayOfWeekElement() { |
| 1602 | if (dwe == null) { |
| 1603 | dwe = new DateTimeFormatterBuilder() |
| 1604 | .appendLiteral('-') |
| 1605 | .appendDayOfWeek(1) |
| 1606 | .toFormatter(); |
| 1607 | } |
| 1608 | return dwe; |
| 1609 | } |
| 1610 | |
| 1611 | private static DateTimeFormatter dayOfYearElement() { |
| 1612 | if (dye == null) { |
| 1613 | dye = new DateTimeFormatterBuilder() |
| 1614 | .appendLiteral('-') |
| 1615 | .appendDayOfYear(3) |
| 1616 | .toFormatter(); |
| 1617 | } |
| 1618 | return dye; |
| 1619 | } |
| 1620 | |
| 1621 | private static DateTimeFormatter literalTElement() { |
| 1622 | if (lte == null) { |
| 1623 | lte = new DateTimeFormatterBuilder() |
| 1624 | .appendLiteral('T') |
| 1625 | .toFormatter(); |
| 1626 | } |
| 1627 | return lte; |
| 1628 | } |
| 1629 | |
| 1630 | private static DateTimeFormatter hourElement() { |
| 1631 | if (hde == null) { |
| 1632 | hde = new DateTimeFormatterBuilder() |
| 1633 | .appendHourOfDay(2) |
| 1634 | .toFormatter(); |
| 1635 | } |
| 1636 | return hde; |
| 1637 | } |
| 1638 | |
| 1639 | private static DateTimeFormatter minuteElement() { |
| 1640 | if (mhe == null) { |
| 1641 | mhe = new DateTimeFormatterBuilder() |
| 1642 | .appendLiteral(':') |
| 1643 | .appendMinuteOfHour(2) |
| 1644 | .toFormatter(); |
| 1645 | } |
| 1646 | return mhe; |
| 1647 | } |
| 1648 | |
| 1649 | private static DateTimeFormatter secondElement() { |
| 1650 | if (sme == null) { |
| 1651 | sme = new DateTimeFormatterBuilder() |
| 1652 | .appendLiteral(':') |
| 1653 | .appendSecondOfMinute(2) |
| 1654 | .toFormatter(); |
| 1655 | } |
| 1656 | return sme; |
| 1657 | } |
| 1658 | |
| 1659 | private static DateTimeFormatter fractionElement() { |
| 1660 | if (fse == null) { |
| 1661 | fse = new DateTimeFormatterBuilder() |
| 1662 | .appendLiteral('.') |
| 1663 | // Support parsing up to nanosecond precision even though |
| 1664 | // those extra digits will be dropped. |
| 1665 | .appendFractionOfSecond(3, 9) |
| 1666 | .toFormatter(); |
| 1667 | } |
| 1668 | return fse; |
| 1669 | } |
| 1670 | |
| 1671 | private static DateTimeFormatter offsetElement() { |
| 1672 | if (ze == null) { |
| 1673 | ze = new DateTimeFormatterBuilder() |
| 1674 | .appendTimeZoneOffset("Z", true, 2, 4) |
| 1675 | .toFormatter(); |
| 1676 | } |
| 1677 | return ze; |
| 1678 | } |
| 1679 | |
| 1680 | } |