| 1 | /* |
| 2 | * Copyright 2001-2005 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.Locale; |
| 19 | |
| 20 | import org.joda.time.DateTimeConstants; |
| 21 | import org.joda.time.DateTimeFieldType; |
| 22 | import org.joda.time.DurationField; |
| 23 | import org.joda.time.field.PreciseDurationDateTimeField; |
| 24 | |
| 25 | /** |
| 26 | * GJDayOfWeekDateTimeField provides time calculations for the |
| 27 | * day of the week component of time. |
| 28 | * |
| 29 | * @since 1.0 |
| 30 | * @author Guy Allard |
| 31 | * @author Stephen Colebourne |
| 32 | * @author Brian S O'Neill |
| 33 | */ |
| 34 | final class GJDayOfWeekDateTimeField extends PreciseDurationDateTimeField { |
| 35 | |
| 36 | /** Serialization version */ |
| 37 | private static final long serialVersionUID = -3857947176719041436L; |
| 38 | |
| 39 | private final BasicChronology iChronology; |
| 40 | |
| 41 | /** |
| 42 | * Restricted constructor. |
| 43 | */ |
| 44 | GJDayOfWeekDateTimeField(BasicChronology chronology, DurationField days) { |
| 45 | super(DateTimeFieldType.dayOfWeek(), days); |
| 46 | iChronology = chronology; |
| 47 | } |
| 48 | |
| 49 | /** |
| 50 | * Get the value of the specified time instant. |
| 51 | * |
| 52 | * @param instant the time instant in millis to query |
| 53 | * @return the day of the week extracted from the input |
| 54 | */ |
| 55 | public int get(long instant) { |
| 56 | return iChronology.getDayOfWeek(instant); |
| 57 | } |
| 58 | |
| 59 | /** |
| 60 | * Get the textual value of the specified time instant. |
| 61 | * |
| 62 | * @param fieldValue the field value to query |
| 63 | * @param locale the locale to use |
| 64 | * @return the day of the week, such as 'Monday' |
| 65 | */ |
| 66 | public String getAsText(int fieldValue, Locale locale) { |
| 67 | return GJLocaleSymbols.forLocale(locale).dayOfWeekValueToText(fieldValue); |
| 68 | } |
| 69 | |
| 70 | /** |
| 71 | * Get the abbreviated textual value of the specified time instant. |
| 72 | * |
| 73 | * @param fieldValue the field value to query |
| 74 | * @param locale the locale to use |
| 75 | * @return the day of the week, such as 'Mon' |
| 76 | */ |
| 77 | public String getAsShortText(int fieldValue, Locale locale) { |
| 78 | return GJLocaleSymbols.forLocale(locale).dayOfWeekValueToShortText(fieldValue); |
| 79 | } |
| 80 | |
| 81 | /** |
| 82 | * Convert the specified text and locale into a value. |
| 83 | * |
| 84 | * @param text the text to convert |
| 85 | * @param locale the locale to convert using |
| 86 | * @return the value extracted from the text |
| 87 | * @throws IllegalArgumentException if the text is invalid |
| 88 | */ |
| 89 | protected int convertText(String text, Locale locale) { |
| 90 | return GJLocaleSymbols.forLocale(locale).dayOfWeekTextToValue(text); |
| 91 | } |
| 92 | |
| 93 | public DurationField getRangeDurationField() { |
| 94 | return iChronology.weeks(); |
| 95 | } |
| 96 | |
| 97 | /** |
| 98 | * Get the minimum value that this field can have. |
| 99 | * |
| 100 | * @return the field's minimum value |
| 101 | */ |
| 102 | public int getMinimumValue() { |
| 103 | return DateTimeConstants.MONDAY; |
| 104 | } |
| 105 | |
| 106 | /** |
| 107 | * Get the maximum value that this field can have. |
| 108 | * |
| 109 | * @return the field's maximum value |
| 110 | */ |
| 111 | public int getMaximumValue() { |
| 112 | return DateTimeConstants.SUNDAY; |
| 113 | } |
| 114 | |
| 115 | /** |
| 116 | * Get the maximum length of the text returned by this field. |
| 117 | * |
| 118 | * @param locale the locale to use |
| 119 | * @return the maximum textual length |
| 120 | */ |
| 121 | public int getMaximumTextLength(Locale locale) { |
| 122 | return GJLocaleSymbols.forLocale(locale).getDayOfWeekMaxTextLength(); |
| 123 | } |
| 124 | |
| 125 | /** |
| 126 | * Get the maximum length of the abbreviated text returned by this field. |
| 127 | * |
| 128 | * @param locale the locale to use |
| 129 | * @return the maximum abbreviated textual length |
| 130 | */ |
| 131 | public int getMaximumShortTextLength(Locale locale) { |
| 132 | return GJLocaleSymbols.forLocale(locale).getDayOfWeekMaxShortTextLength(); |
| 133 | } |
| 134 | |
| 135 | /** |
| 136 | * Serialization singleton |
| 137 | */ |
| 138 | private Object readResolve() { |
| 139 | return iChronology.dayOfWeek(); |
| 140 | } |
| 141 | } |