1 /*
2 * Copyright 2001-2013 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 @SuppressWarnings("unused")
38 private static final long serialVersionUID = -3857947176719041436L;
39
40 private final BasicChronology iChronology;
41
42 /**
43 * Restricted constructor.
44 */
45 GJDayOfWeekDateTimeField(BasicChronology chronology, DurationField days) {
46 super(DateTimeFieldType.dayOfWeek(), days);
47 iChronology = chronology;
48 }
49
50 /**
51 * Get the value of the specified time instant.
52 *
53 * @param instant the time instant in millis to query
54 * @return the day of the week extracted from the input
55 */
56 public int get(long instant) {
57 return iChronology.getDayOfWeek(instant);
58 }
59
60 /**
61 * Get the textual value of the specified time instant.
62 *
63 * @param fieldValue the field value to query
64 * @param locale the locale to use
65 * @return the day of the week, such as 'Monday'
66 */
67 public String getAsText(int fieldValue, Locale locale) {
68 return GJLocaleSymbols.forLocale(locale).dayOfWeekValueToText(fieldValue);
69 }
70
71 /**
72 * Get the abbreviated textual value of the specified time instant.
73 *
74 * @param fieldValue the field value to query
75 * @param locale the locale to use
76 * @return the day of the week, such as 'Mon'
77 */
78 public String getAsShortText(int fieldValue, Locale locale) {
79 return GJLocaleSymbols.forLocale(locale).dayOfWeekValueToShortText(fieldValue);
80 }
81
82 /**
83 * Convert the specified text and locale into a value.
84 *
85 * @param text the text to convert
86 * @param locale the locale to convert using
87 * @return the value extracted from the text
88 * @throws IllegalArgumentException if the text is invalid
89 */
90 protected int convertText(String text, Locale locale) {
91 return GJLocaleSymbols.forLocale(locale).dayOfWeekTextToValue(text);
92 }
93
94 public DurationField getRangeDurationField() {
95 return iChronology.weeks();
96 }
97
98 /**
99 * Get the minimum value that this field can have.
100 *
101 * @return the field's minimum value
102 */
103 public int getMinimumValue() {
104 return DateTimeConstants.MONDAY;
105 }
106
107 /**
108 * Get the maximum value that this field can have.
109 *
110 * @return the field's maximum value
111 */
112 public int getMaximumValue() {
113 return DateTimeConstants.SUNDAY;
114 }
115
116 /**
117 * Get the maximum length of the text returned by this field.
118 *
119 * @param locale the locale to use
120 * @return the maximum textual length
121 */
122 public int getMaximumTextLength(Locale locale) {
123 return GJLocaleSymbols.forLocale(locale).getDayOfWeekMaxTextLength();
124 }
125
126 /**
127 * Get the maximum length of the abbreviated text returned by this field.
128 *
129 * @param locale the locale to use
130 * @return the maximum abbreviated textual length
131 */
132 public int getMaximumShortTextLength(Locale locale) {
133 return GJLocaleSymbols.forLocale(locale).getDayOfWeekMaxShortTextLength();
134 }
135
136 /**
137 * Serialization singleton
138 */
139 private Object readResolve() {
140 return iChronology.dayOfWeek();
141 }
142 }
143