| 1 | /* |
| 2 | * Copyright 2001-2008 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.chrono; |
| 17 | |
| 18 | import java.util.HashMap; |
| 19 | import java.util.Locale; |
| 20 | |
| 21 | import org.joda.time.Chronology; |
| 22 | import org.joda.time.DateTimeConstants; |
| 23 | import org.joda.time.DateTimeField; |
| 24 | import org.joda.time.DateTimeZone; |
| 25 | import org.joda.time.DurationField; |
| 26 | import org.joda.time.IllegalFieldValueException; |
| 27 | import org.joda.time.Instant; |
| 28 | import org.joda.time.ReadablePartial; |
| 29 | import org.joda.time.field.BaseDateTimeField; |
| 30 | import org.joda.time.field.BaseDurationField; |
| 31 | import org.joda.time.format.DateTimeFormat; |
| 32 | |
| 33 | /** |
| 34 | * Wraps another Chronology to add support for time zones. |
| 35 | * <p> |
| 36 | * ZonedChronology is thread-safe and immutable. |
| 37 | * |
| 38 | * @author Brian S O'Neill |
| 39 | * @author Stephen Colebourne |
| 40 | * @since 1.0 |
| 41 | */ |
| 42 | public final class ZonedChronology extends AssembledChronology { |
| 43 | |
| 44 | /** Serialization lock */ |
| 45 | private static final long serialVersionUID = -1079258847191166848L; |
| 46 | |
| 47 | /** |
| 48 | * Create a ZonedChronology for any chronology, overriding any time zone it |
| 49 | * may already have. |
| 50 | * |
| 51 | * @param base base chronology to wrap |
| 52 | * @param zone the time zone |
| 53 | * @throws IllegalArgumentException if chronology or time zone is null |
| 54 | */ |
| 55 | public static ZonedChronology getInstance(Chronology base, DateTimeZone zone) { |
| 56 | if (base == null) { |
| 57 | throw new IllegalArgumentException("Must supply a chronology"); |
| 58 | } |
| 59 | base = base.withUTC(); |
| 60 | if (base == null) { |
| 61 | throw new IllegalArgumentException("UTC chronology must not be null"); |
| 62 | } |
| 63 | if (zone == null) { |
| 64 | throw new IllegalArgumentException("DateTimeZone must not be null"); |
| 65 | } |
| 66 | return new ZonedChronology(base, zone); |
| 67 | } |
| 68 | |
| 69 | static boolean useTimeArithmetic(DurationField field) { |
| 70 | // Use time of day arithmetic rules for unit durations less than |
| 71 | // typical time zone offsets. |
| 72 | return field != null && field.getUnitMillis() < DateTimeConstants.MILLIS_PER_HOUR * 12; |
| 73 | } |
| 74 | |
| 75 | /** |
| 76 | * Restricted constructor |
| 77 | * |
| 78 | * @param base base chronology to wrap |
| 79 | * @param zone the time zone |
| 80 | */ |
| 81 | private ZonedChronology(Chronology base, DateTimeZone zone) { |
| 82 | super(base, zone); |
| 83 | } |
| 84 | |
| 85 | public DateTimeZone getZone() { |
| 86 | return (DateTimeZone)getParam(); |
| 87 | } |
| 88 | |
| 89 | public Chronology withUTC() { |
| 90 | return getBase(); |
| 91 | } |
| 92 | |
| 93 | public Chronology withZone(DateTimeZone zone) { |
| 94 | if (zone == null) { |
| 95 | zone = DateTimeZone.getDefault(); |
| 96 | } |
| 97 | if (zone == getParam()) { |
| 98 | return this; |
| 99 | } |
| 100 | if (zone == DateTimeZone.UTC) { |
| 101 | return getBase(); |
| 102 | } |
| 103 | return new ZonedChronology(getBase(), zone); |
| 104 | } |
| 105 | |
| 106 | public long getDateTimeMillis(int year, int monthOfYear, int dayOfMonth, |
| 107 | int millisOfDay) |
| 108 | throws IllegalArgumentException |
| 109 | { |
| 110 | return localToUTC(getBase().getDateTimeMillis |
| 111 | (year, monthOfYear, dayOfMonth, millisOfDay)); |
| 112 | } |
| 113 | |
| 114 | public long getDateTimeMillis(int year, int monthOfYear, int dayOfMonth, |
| 115 | int hourOfDay, int minuteOfHour, |
| 116 | int secondOfMinute, int millisOfSecond) |
| 117 | throws IllegalArgumentException |
| 118 | { |
| 119 | return localToUTC(getBase().getDateTimeMillis |
| 120 | (year, monthOfYear, dayOfMonth, |
| 121 | hourOfDay, minuteOfHour, secondOfMinute, millisOfSecond)); |
| 122 | } |
| 123 | |
| 124 | public long getDateTimeMillis(long instant, |
| 125 | int hourOfDay, int minuteOfHour, |
| 126 | int secondOfMinute, int millisOfSecond) |
| 127 | throws IllegalArgumentException |
| 128 | { |
| 129 | return localToUTC(getBase().getDateTimeMillis |
| 130 | (instant + getZone().getOffset(instant), |
| 131 | hourOfDay, minuteOfHour, secondOfMinute, millisOfSecond)); |
| 132 | } |
| 133 | |
| 134 | /** |
| 135 | * @param instant instant from 1970-01-01T00:00:00 local time |
| 136 | * @return instant from 1970-01-01T00:00:00Z |
| 137 | */ |
| 138 | private long localToUTC(long instant) { |
| 139 | DateTimeZone zone = getZone(); |
| 140 | int offset = zone.getOffsetFromLocal(instant); |
| 141 | instant -= offset; |
| 142 | if (offset != zone.getOffset(instant)) { |
| 143 | throw new IllegalArgumentException |
| 144 | ("Illegal instant due to time zone offset transition: " + |
| 145 | DateTimeFormat.forPattern("yyyy-MM-dd'T'HH:mm:ss.SSS").print(new Instant(instant))); |
| 146 | } |
| 147 | return instant; |
| 148 | } |
| 149 | |
| 150 | protected void assemble(Fields fields) { |
| 151 | // Keep a local cache of converted fields so as not to create redundant |
| 152 | // objects. |
| 153 | HashMap converted = new HashMap(); |
| 154 | |
| 155 | // Convert duration fields... |
| 156 | |
| 157 | fields.eras = convertField(fields.eras, converted); |
| 158 | fields.centuries = convertField(fields.centuries, converted); |
| 159 | fields.years = convertField(fields.years, converted); |
| 160 | fields.months = convertField(fields.months, converted); |
| 161 | fields.weekyears = convertField(fields.weekyears, converted); |
| 162 | fields.weeks = convertField(fields.weeks, converted); |
| 163 | fields.days = convertField(fields.days, converted); |
| 164 | |
| 165 | fields.halfdays = convertField(fields.halfdays, converted); |
| 166 | fields.hours = convertField(fields.hours, converted); |
| 167 | fields.minutes = convertField(fields.minutes, converted); |
| 168 | fields.seconds = convertField(fields.seconds, converted); |
| 169 | fields.millis = convertField(fields.millis, converted); |
| 170 | |
| 171 | // Convert datetime fields... |
| 172 | |
| 173 | fields.year = convertField(fields.year, converted); |
| 174 | fields.yearOfEra = convertField(fields.yearOfEra, converted); |
| 175 | fields.yearOfCentury = convertField(fields.yearOfCentury, converted); |
| 176 | fields.centuryOfEra = convertField(fields.centuryOfEra, converted); |
| 177 | fields.era = convertField(fields.era, converted); |
| 178 | fields.dayOfWeek = convertField(fields.dayOfWeek, converted); |
| 179 | fields.dayOfMonth = convertField(fields.dayOfMonth, converted); |
| 180 | fields.dayOfYear = convertField(fields.dayOfYear, converted); |
| 181 | fields.monthOfYear = convertField(fields.monthOfYear, converted); |
| 182 | fields.weekOfWeekyear = convertField(fields.weekOfWeekyear, converted); |
| 183 | fields.weekyear = convertField(fields.weekyear, converted); |
| 184 | fields.weekyearOfCentury = convertField(fields.weekyearOfCentury, converted); |
| 185 | |
| 186 | fields.millisOfSecond = convertField(fields.millisOfSecond, converted); |
| 187 | fields.millisOfDay = convertField(fields.millisOfDay, converted); |
| 188 | fields.secondOfMinute = convertField(fields.secondOfMinute, converted); |
| 189 | fields.secondOfDay = convertField(fields.secondOfDay, converted); |
| 190 | fields.minuteOfHour = convertField(fields.minuteOfHour, converted); |
| 191 | fields.minuteOfDay = convertField(fields.minuteOfDay, converted); |
| 192 | fields.hourOfDay = convertField(fields.hourOfDay, converted); |
| 193 | fields.hourOfHalfday = convertField(fields.hourOfHalfday, converted); |
| 194 | fields.clockhourOfDay = convertField(fields.clockhourOfDay, converted); |
| 195 | fields.clockhourOfHalfday = convertField(fields.clockhourOfHalfday, converted); |
| 196 | fields.halfdayOfDay = convertField(fields.halfdayOfDay, converted); |
| 197 | } |
| 198 | |
| 199 | private DurationField convertField(DurationField field, HashMap converted) { |
| 200 | if (field == null || !field.isSupported()) { |
| 201 | return field; |
| 202 | } |
| 203 | if (converted.containsKey(field)) { |
| 204 | return (DurationField)converted.get(field); |
| 205 | } |
| 206 | ZonedDurationField zonedField = new ZonedDurationField(field, getZone()); |
| 207 | converted.put(field, zonedField); |
| 208 | return zonedField; |
| 209 | } |
| 210 | |
| 211 | private DateTimeField convertField(DateTimeField field, HashMap converted) { |
| 212 | if (field == null || !field.isSupported()) { |
| 213 | return field; |
| 214 | } |
| 215 | if (converted.containsKey(field)) { |
| 216 | return (DateTimeField)converted.get(field); |
| 217 | } |
| 218 | ZonedDateTimeField zonedField = |
| 219 | new ZonedDateTimeField(field, getZone(), |
| 220 | convertField(field.getDurationField(), converted), |
| 221 | convertField(field.getRangeDurationField(), converted), |
| 222 | convertField(field.getLeapDurationField(), converted)); |
| 223 | converted.put(field, zonedField); |
| 224 | return zonedField; |
| 225 | } |
| 226 | |
| 227 | //----------------------------------------------------------------------- |
| 228 | /** |
| 229 | * A zoned chronology is only equal to a zoned chronology with the |
| 230 | * same base chronology and zone. |
| 231 | * |
| 232 | * @param obj the object to compare to |
| 233 | * @return true if equal |
| 234 | * @since 1.4 |
| 235 | */ |
| 236 | public boolean equals(Object obj) { |
| 237 | if (this == obj) { |
| 238 | return true; |
| 239 | } |
| 240 | if (obj instanceof ZonedChronology == false) { |
| 241 | return false; |
| 242 | } |
| 243 | ZonedChronology chrono = (ZonedChronology) obj; |
| 244 | return |
| 245 | getBase().equals(chrono.getBase()) && |
| 246 | getZone().equals(chrono.getZone()); |
| 247 | } |
| 248 | |
| 249 | /** |
| 250 | * A suitable hashcode for the chronology. |
| 251 | * |
| 252 | * @return the hashcode |
| 253 | * @since 1.4 |
| 254 | */ |
| 255 | public int hashCode() { |
| 256 | return 326565 + getZone().hashCode() * 11 + getBase().hashCode() * 7; |
| 257 | } |
| 258 | |
| 259 | /** |
| 260 | * A debugging string for the chronology. |
| 261 | * |
| 262 | * @return the debugging string |
| 263 | */ |
| 264 | public String toString() { |
| 265 | return "ZonedChronology[" + getBase() + ", " + getZone().getID() + ']'; |
| 266 | } |
| 267 | |
| 268 | //----------------------------------------------------------------------- |
| 269 | /* |
| 270 | * Because time durations are typically smaller than time zone offsets, the |
| 271 | * arithmetic methods subtract the original offset. This produces a more |
| 272 | * expected behavior when crossing time zone offset transitions. For dates, |
| 273 | * the new offset is subtracted off. This behavior, if applied to time |
| 274 | * fields, can nullify or reverse an add when crossing a transition. |
| 275 | */ |
| 276 | static class ZonedDurationField extends BaseDurationField { |
| 277 | private static final long serialVersionUID = -485345310999208286L; |
| 278 | |
| 279 | final DurationField iField; |
| 280 | final boolean iTimeField; |
| 281 | final DateTimeZone iZone; |
| 282 | |
| 283 | ZonedDurationField(DurationField field, DateTimeZone zone) { |
| 284 | super(field.getType()); |
| 285 | if (!field.isSupported()) { |
| 286 | throw new IllegalArgumentException(); |
| 287 | } |
| 288 | iField = field; |
| 289 | iTimeField = useTimeArithmetic(field); |
| 290 | iZone = zone; |
| 291 | } |
| 292 | |
| 293 | public boolean isPrecise() { |
| 294 | return iTimeField ? iField.isPrecise() : iField.isPrecise() && this.iZone.isFixed(); |
| 295 | } |
| 296 | |
| 297 | public long getUnitMillis() { |
| 298 | return iField.getUnitMillis(); |
| 299 | } |
| 300 | |
| 301 | public int getValue(long duration, long instant) { |
| 302 | return iField.getValue(duration, addOffset(instant)); |
| 303 | } |
| 304 | |
| 305 | public long getValueAsLong(long duration, long instant) { |
| 306 | return iField.getValueAsLong(duration, addOffset(instant)); |
| 307 | } |
| 308 | |
| 309 | public long getMillis(int value, long instant) { |
| 310 | return iField.getMillis(value, addOffset(instant)); |
| 311 | } |
| 312 | |
| 313 | public long getMillis(long value, long instant) { |
| 314 | return iField.getMillis(value, addOffset(instant)); |
| 315 | } |
| 316 | |
| 317 | public long add(long instant, int value) { |
| 318 | int offset = getOffsetToAdd(instant); |
| 319 | instant = iField.add(instant + offset, value); |
| 320 | return instant - (iTimeField ? offset : getOffsetFromLocalToSubtract(instant)); |
| 321 | } |
| 322 | |
| 323 | public long add(long instant, long value) { |
| 324 | int offset = getOffsetToAdd(instant); |
| 325 | instant = iField.add(instant + offset, value); |
| 326 | return instant - (iTimeField ? offset : getOffsetFromLocalToSubtract(instant)); |
| 327 | } |
| 328 | |
| 329 | public int getDifference(long minuendInstant, long subtrahendInstant) { |
| 330 | int offset = getOffsetToAdd(subtrahendInstant); |
| 331 | return iField.getDifference |
| 332 | (minuendInstant + (iTimeField ? offset : getOffsetToAdd(minuendInstant)), |
| 333 | subtrahendInstant + offset); |
| 334 | } |
| 335 | |
| 336 | public long getDifferenceAsLong(long minuendInstant, long subtrahendInstant) { |
| 337 | int offset = getOffsetToAdd(subtrahendInstant); |
| 338 | return iField.getDifferenceAsLong |
| 339 | (minuendInstant + (iTimeField ? offset : getOffsetToAdd(minuendInstant)), |
| 340 | subtrahendInstant + offset); |
| 341 | } |
| 342 | |
| 343 | private int getOffsetToAdd(long instant) { |
| 344 | int offset = this.iZone.getOffset(instant); |
| 345 | long sum = instant + offset; |
| 346 | // If there is a sign change, but the two values have the same sign... |
| 347 | if ((instant ^ sum) < 0 && (instant ^ offset) >= 0) { |
| 348 | throw new ArithmeticException("Adding time zone offset caused overflow"); |
| 349 | } |
| 350 | return offset; |
| 351 | } |
| 352 | |
| 353 | private int getOffsetFromLocalToSubtract(long instant) { |
| 354 | int offset = this.iZone.getOffsetFromLocal(instant); |
| 355 | long diff = instant - offset; |
| 356 | // If there is a sign change, but the two values have different signs... |
| 357 | if ((instant ^ diff) < 0 && (instant ^ offset) < 0) { |
| 358 | throw new ArithmeticException("Subtracting time zone offset caused overflow"); |
| 359 | } |
| 360 | return offset; |
| 361 | } |
| 362 | |
| 363 | private long addOffset(long instant) { |
| 364 | return iZone.convertUTCToLocal(instant); |
| 365 | } |
| 366 | } |
| 367 | |
| 368 | /** |
| 369 | * A DateTimeField that decorates another to add timezone behaviour. |
| 370 | * <p> |
| 371 | * This class converts passed in instants to local wall time, and vice |
| 372 | * versa on output. |
| 373 | */ |
| 374 | static final class ZonedDateTimeField extends BaseDateTimeField { |
| 375 | private static final long serialVersionUID = -3968986277775529794L; |
| 376 | |
| 377 | final DateTimeField iField; |
| 378 | final DateTimeZone iZone; |
| 379 | final DurationField iDurationField; |
| 380 | final boolean iTimeField; |
| 381 | final DurationField iRangeDurationField; |
| 382 | final DurationField iLeapDurationField; |
| 383 | |
| 384 | ZonedDateTimeField(DateTimeField field, |
| 385 | DateTimeZone zone, |
| 386 | DurationField durationField, |
| 387 | DurationField rangeDurationField, |
| 388 | DurationField leapDurationField) { |
| 389 | super(field.getType()); |
| 390 | if (!field.isSupported()) { |
| 391 | throw new IllegalArgumentException(); |
| 392 | } |
| 393 | iField = field; |
| 394 | iZone = zone; |
| 395 | iDurationField = durationField; |
| 396 | iTimeField = useTimeArithmetic(durationField); |
| 397 | iRangeDurationField = rangeDurationField; |
| 398 | iLeapDurationField = leapDurationField; |
| 399 | } |
| 400 | |
| 401 | public boolean isLenient() { |
| 402 | return iField.isLenient(); |
| 403 | } |
| 404 | |
| 405 | public int get(long instant) { |
| 406 | long localInstant = iZone.convertUTCToLocal(instant); |
| 407 | return iField.get(localInstant); |
| 408 | } |
| 409 | |
| 410 | public String getAsText(long instant, Locale locale) { |
| 411 | long localInstant = iZone.convertUTCToLocal(instant); |
| 412 | return iField.getAsText(localInstant, locale); |
| 413 | } |
| 414 | |
| 415 | public String getAsShortText(long instant, Locale locale) { |
| 416 | long localInstant = iZone.convertUTCToLocal(instant); |
| 417 | return iField.getAsShortText(localInstant, locale); |
| 418 | } |
| 419 | |
| 420 | public String getAsText(int fieldValue, Locale locale) { |
| 421 | return iField.getAsText(fieldValue, locale); |
| 422 | } |
| 423 | |
| 424 | public String getAsShortText(int fieldValue, Locale locale) { |
| 425 | return iField.getAsShortText(fieldValue, locale); |
| 426 | } |
| 427 | |
| 428 | public long add(long instant, int value) { |
| 429 | if (iTimeField) { |
| 430 | int offset = getOffsetToAdd(instant); |
| 431 | long localInstant = iField.add(instant + offset, value); |
| 432 | return localInstant - offset; |
| 433 | } else { |
| 434 | long localInstant = iZone.convertUTCToLocal(instant); |
| 435 | localInstant = iField.add(localInstant, value); |
| 436 | return iZone.convertLocalToUTC(localInstant, false); |
| 437 | } |
| 438 | } |
| 439 | |
| 440 | public long add(long instant, long value) { |
| 441 | if (iTimeField) { |
| 442 | int offset = getOffsetToAdd(instant); |
| 443 | long localInstant = iField.add(instant + offset, value); |
| 444 | return localInstant - offset; |
| 445 | } else { |
| 446 | long localInstant = iZone.convertUTCToLocal(instant); |
| 447 | localInstant = iField.add(localInstant, value); |
| 448 | return iZone.convertLocalToUTC(localInstant, false); |
| 449 | } |
| 450 | } |
| 451 | |
| 452 | public long addWrapField(long instant, int value) { |
| 453 | if (iTimeField) { |
| 454 | int offset = getOffsetToAdd(instant); |
| 455 | long localInstant = iField.addWrapField(instant + offset, value); |
| 456 | return localInstant - offset; |
| 457 | } else { |
| 458 | long localInstant = iZone.convertUTCToLocal(instant); |
| 459 | localInstant = iField.addWrapField(localInstant, value); |
| 460 | return iZone.convertLocalToUTC(localInstant, false); |
| 461 | } |
| 462 | } |
| 463 | |
| 464 | public long set(long instant, int value) { |
| 465 | long localInstant = iZone.convertUTCToLocal(instant); |
| 466 | localInstant = iField.set(localInstant, value); |
| 467 | long result = iZone.convertLocalToUTC(localInstant, false); |
| 468 | if (get(result) != value) { |
| 469 | throw new IllegalFieldValueException(iField.getType(), new Integer(value), |
| 470 | "Illegal instant due to time zone offset transition: " + |
| 471 | DateTimeFormat.forPattern("yyyy-MM-dd'T'HH:mm:ss.SSS").print(new Instant(localInstant)) + |
| 472 | " (" + iZone.getID() + ")"); |
| 473 | } |
| 474 | return result; |
| 475 | } |
| 476 | |
| 477 | public long set(long instant, String text, Locale locale) { |
| 478 | // cannot verify that new value stuck because set may be lenient |
| 479 | long localInstant = iZone.convertUTCToLocal(instant); |
| 480 | localInstant = iField.set(localInstant, text, locale); |
| 481 | return iZone.convertLocalToUTC(localInstant, false); |
| 482 | } |
| 483 | |
| 484 | public int getDifference(long minuendInstant, long subtrahendInstant) { |
| 485 | int offset = getOffsetToAdd(subtrahendInstant); |
| 486 | return iField.getDifference |
| 487 | (minuendInstant + (iTimeField ? offset : getOffsetToAdd(minuendInstant)), |
| 488 | subtrahendInstant + offset); |
| 489 | } |
| 490 | |
| 491 | public long getDifferenceAsLong(long minuendInstant, long subtrahendInstant) { |
| 492 | int offset = getOffsetToAdd(subtrahendInstant); |
| 493 | return iField.getDifferenceAsLong |
| 494 | (minuendInstant + (iTimeField ? offset : getOffsetToAdd(minuendInstant)), |
| 495 | subtrahendInstant + offset); |
| 496 | } |
| 497 | |
| 498 | public final DurationField getDurationField() { |
| 499 | return iDurationField; |
| 500 | } |
| 501 | |
| 502 | public final DurationField getRangeDurationField() { |
| 503 | return iRangeDurationField; |
| 504 | } |
| 505 | |
| 506 | public boolean isLeap(long instant) { |
| 507 | long localInstant = iZone.convertUTCToLocal(instant); |
| 508 | return iField.isLeap(localInstant); |
| 509 | } |
| 510 | |
| 511 | public int getLeapAmount(long instant) { |
| 512 | long localInstant = iZone.convertUTCToLocal(instant); |
| 513 | return iField.getLeapAmount(localInstant); |
| 514 | } |
| 515 | |
| 516 | public final DurationField getLeapDurationField() { |
| 517 | return iLeapDurationField; |
| 518 | } |
| 519 | |
| 520 | public long roundFloor(long instant) { |
| 521 | if (iTimeField) { |
| 522 | int offset = getOffsetToAdd(instant); |
| 523 | instant = iField.roundFloor(instant + offset); |
| 524 | return instant - offset; |
| 525 | } else { |
| 526 | long localInstant = iZone.convertUTCToLocal(instant); |
| 527 | localInstant = iField.roundFloor(localInstant); |
| 528 | return iZone.convertLocalToUTC(localInstant, false); |
| 529 | } |
| 530 | } |
| 531 | |
| 532 | public long roundCeiling(long instant) { |
| 533 | if (iTimeField) { |
| 534 | int offset = getOffsetToAdd(instant); |
| 535 | instant = iField.roundCeiling(instant + offset); |
| 536 | return instant - offset; |
| 537 | } else { |
| 538 | long localInstant = iZone.convertUTCToLocal(instant); |
| 539 | localInstant = iField.roundCeiling(localInstant); |
| 540 | return iZone.convertLocalToUTC(localInstant, false); |
| 541 | } |
| 542 | } |
| 543 | |
| 544 | public long remainder(long instant) { |
| 545 | long localInstant = iZone.convertUTCToLocal(instant); |
| 546 | return iField.remainder(localInstant); |
| 547 | } |
| 548 | |
| 549 | public int getMinimumValue() { |
| 550 | return iField.getMinimumValue(); |
| 551 | } |
| 552 | |
| 553 | public int getMinimumValue(long instant) { |
| 554 | long localInstant = iZone.convertUTCToLocal(instant); |
| 555 | return iField.getMinimumValue(localInstant); |
| 556 | } |
| 557 | |
| 558 | public int getMinimumValue(ReadablePartial instant) { |
| 559 | return iField.getMinimumValue(instant); |
| 560 | } |
| 561 | |
| 562 | public int getMinimumValue(ReadablePartial instant, int[] values) { |
| 563 | return iField.getMinimumValue(instant, values); |
| 564 | } |
| 565 | |
| 566 | public int getMaximumValue() { |
| 567 | return iField.getMaximumValue(); |
| 568 | } |
| 569 | |
| 570 | public int getMaximumValue(long instant) { |
| 571 | long localInstant = iZone.convertUTCToLocal(instant); |
| 572 | return iField.getMaximumValue(localInstant); |
| 573 | } |
| 574 | |
| 575 | public int getMaximumValue(ReadablePartial instant) { |
| 576 | return iField.getMaximumValue(instant); |
| 577 | } |
| 578 | |
| 579 | public int getMaximumValue(ReadablePartial instant, int[] values) { |
| 580 | return iField.getMaximumValue(instant, values); |
| 581 | } |
| 582 | |
| 583 | public int getMaximumTextLength(Locale locale) { |
| 584 | return iField.getMaximumTextLength(locale); |
| 585 | } |
| 586 | |
| 587 | public int getMaximumShortTextLength(Locale locale) { |
| 588 | return iField.getMaximumShortTextLength(locale); |
| 589 | } |
| 590 | |
| 591 | private int getOffsetToAdd(long instant) { |
| 592 | int offset = this.iZone.getOffset(instant); |
| 593 | long sum = instant + offset; |
| 594 | // If there is a sign change, but the two values have the same sign... |
| 595 | if ((instant ^ sum) < 0 && (instant ^ offset) >= 0) { |
| 596 | throw new ArithmeticException("Adding time zone offset caused overflow"); |
| 597 | } |
| 598 | return offset; |
| 599 | } |
| 600 | } |
| 601 | |
| 602 | } |