36 * Concrete implementation of the {@link java.util.spi.CalendarDataProvider
37 * CalendarDataProvider} class for the JRE LocaleProviderAdapter.
38 *
39 * @author Masayoshi Okutsu
40 * @author Naoto Sato
41 */
42 public class CalendarNameProviderImpl extends CalendarNameProvider implements AvailableLanguageTags {
43 private final LocaleProviderAdapter.Type type;
44 private final Set<String> langtags;
45
46 public CalendarNameProviderImpl(LocaleProviderAdapter.Type type, Set<String> langtags) {
47 this.type = type;
48 this.langtags = langtags;
49 }
50
51 @Override
52 public String getDisplayName(String calendarType, int field, int value, int style, Locale locale) {
53 return getDisplayNameImpl(calendarType, field, value, style, locale, false);
54 }
55
56 public String getCldrDisplayName(String calendarType, int field, int value, int style, Locale locale) {
57 return getDisplayNameImpl(calendarType, field, value, style, locale, true);
58 }
59
60 public String getDisplayNameImpl(String calendarType, int field, int value, int style, Locale locale, boolean cldr) {
61 String name = null;
62 String key = getResourceKey(calendarType, field, style, cldr);
63 if (key != null) {
64 String[] strings = LocaleProviderAdapter.forType(type).getLocaleResources(locale).getCalendarNames(key);
65 if (strings != null && strings.length > 0) {
66 if (field == DAY_OF_WEEK || field == YEAR) {
67 --value;
68 }
69 if (value < 0 || value >= strings.length) {
70 return null;
71 }
72 name = strings[value];
73 // If name is empty in standalone, try its `format' style.
74 if (name.length() == 0
75 && (style == SHORT_STANDALONE || style == LONG_STANDALONE
76 || style == NARROW_STANDALONE)) {
77 name = getDisplayName(calendarType, field, value,
78 getBaseStyle(style),
79 locale);
80 }
81 }
82 }
83 return name;
84 }
87 SHORT_STANDALONE, LONG_FORMAT, LONG_STANDALONE,
88 NARROW_FORMAT, NARROW_STANDALONE
89 };
90
91 @Override
92 public Map<String, Integer> getDisplayNames(String calendarType, int field, int style, Locale locale) {
93 Map<String, Integer> names;
94 if (style == ALL_STYLES) {
95 names = getDisplayNamesImpl(calendarType, field, SHORT_FORMAT, locale, false);
96 for (int st : REST_OF_STYLES) {
97 names.putAll(getDisplayNamesImpl(calendarType, field, st, locale, false));
98 }
99 } else {
100 // specific style
101 names = getDisplayNamesImpl(calendarType, field, style, locale, false);
102 }
103 return names.isEmpty() ? null : names;
104 }
105
106 // NOTE: This method should be used ONLY BY JSR 310 classes.
107 public Map<String, Integer> getCldrDisplayNames(String calendarType, int field, int style, Locale locale) {
108 Map<String, Integer> names;
109 names = getDisplayNamesImpl(calendarType, field, style, locale, true);
110 return names.isEmpty() ? null : names;
111 }
112
113 private Map<String, Integer> getDisplayNamesImpl(String calendarType, int field,
114 int style, Locale locale, boolean cldr) {
115 String key = getResourceKey(calendarType, field, style, cldr);
116 Map<String, Integer> map = new TreeMap<>(LengthBasedComparator.INSTANCE);
117 if (key != null) {
118 String[] strings = LocaleProviderAdapter.forType(type).getLocaleResources(locale).getCalendarNames(key);
119 if (strings != null) {
120 if (!hasDuplicates(strings)) {
121 if (field == YEAR) {
122 if (strings.length > 0) {
123 map.put(strings[0], 1);
124 }
125 } else {
126 int base = (field == DAY_OF_WEEK) ? 1 : 0;
127 for (int i = 0; i < strings.length; i++) {
128 String name = strings[i];
129 // Ignore any empty string (some standalone month names
130 // are not defined)
131 if (name.length() == 0) {
132 continue;
133 }
134 map.put(name, base + i);
135 }
136 }
137 }
138 }
203 @Override
204 public Set<String> getAvailableLanguageTags() {
205 return langtags;
206 }
207
208 private boolean hasDuplicates(String[] strings) {
209 int len = strings.length;
210 for (int i = 0; i < len - 1; i++) {
211 String a = strings[i];
212 if (a != null) {
213 for (int j = i + 1; j < len; j++) {
214 if (a.equals(strings[j])) {
215 return true;
216 }
217 }
218 }
219 }
220 return false;
221 }
222
223 private String getResourceKey(String type, int field, int style, boolean cldr) {
224 int baseStyle = getBaseStyle(style);
225 boolean isStandalone = (style != baseStyle);
226
227 if ("gregory".equals(type)) {
228 type = null;
229 }
230 boolean isNarrow = (baseStyle == NARROW_FORMAT);
231 StringBuilder key = new StringBuilder();
232 // If cldr is true, use prefix "cldr.".
233 if (cldr) {
234 key.append("cldr.");
235 }
236 switch (field) {
237 case ERA:
238 if (type != null) {
239 key.append(type).append('.');
240 }
241 if (isNarrow) {
242 key.append("narrow.");
243 } else {
244 // JRE and CLDR use different resource key conventions
245 // due to historical reasons. (JRE DateFormatSymbols.getEras returns
246 // abbreviations while other getShort*() return abbreviations.)
247 if (this.type == LocaleProviderAdapter.Type.JRE) {
248 if (cldr) {
249 if (baseStyle == LONG) {
250 key.append("long.");
251 }
252 }
253 if (baseStyle == SHORT) {
254 key.append("short.");
255 }
256 } else { // CLDR
257 if (baseStyle == LONG) {
258 key.append("long.");
259 }
260 }
261 }
262 key.append("Eras");
263 break;
264
265 case YEAR:
266 if (!isNarrow) {
267 key.append(type).append(".FirstYear");
268 }
269 break;
270
271 case MONTH:
272 if ("islamic".equals(type)) {
273 key.append(type).append('.');
274 }
275 if (isStandalone) {
276 key.append("standalone.");
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36 * Concrete implementation of the {@link java.util.spi.CalendarDataProvider
37 * CalendarDataProvider} class for the JRE LocaleProviderAdapter.
38 *
39 * @author Masayoshi Okutsu
40 * @author Naoto Sato
41 */
42 public class CalendarNameProviderImpl extends CalendarNameProvider implements AvailableLanguageTags {
43 private final LocaleProviderAdapter.Type type;
44 private final Set<String> langtags;
45
46 public CalendarNameProviderImpl(LocaleProviderAdapter.Type type, Set<String> langtags) {
47 this.type = type;
48 this.langtags = langtags;
49 }
50
51 @Override
52 public String getDisplayName(String calendarType, int field, int value, int style, Locale locale) {
53 return getDisplayNameImpl(calendarType, field, value, style, locale, false);
54 }
55
56 public String getJavaTimeDisplayName(String calendarType, int field, int value, int style, Locale locale) {
57 return getDisplayNameImpl(calendarType, field, value, style, locale, true);
58 }
59
60 public String getDisplayNameImpl(String calendarType, int field, int value, int style, Locale locale, boolean javatime) {
61 String name = null;
62 String key = getResourceKey(calendarType, field, style, javatime);
63 if (key != null) {
64 LocaleResources lr = LocaleProviderAdapter.forType(type).getLocaleResources(locale);
65 String[] strings = javatime ? lr.getJavaTimeNames(key) : lr.getCalendarNames(key);
66 if (strings != null && strings.length > 0) {
67 if (field == DAY_OF_WEEK || field == YEAR) {
68 --value;
69 }
70 if (value < 0 || value >= strings.length) {
71 return null;
72 }
73 name = strings[value];
74 // If name is empty in standalone, try its `format' style.
75 if (name.length() == 0
76 && (style == SHORT_STANDALONE || style == LONG_STANDALONE
77 || style == NARROW_STANDALONE)) {
78 name = getDisplayName(calendarType, field, value,
79 getBaseStyle(style),
80 locale);
81 }
82 }
83 }
84 return name;
85 }
88 SHORT_STANDALONE, LONG_FORMAT, LONG_STANDALONE,
89 NARROW_FORMAT, NARROW_STANDALONE
90 };
91
92 @Override
93 public Map<String, Integer> getDisplayNames(String calendarType, int field, int style, Locale locale) {
94 Map<String, Integer> names;
95 if (style == ALL_STYLES) {
96 names = getDisplayNamesImpl(calendarType, field, SHORT_FORMAT, locale, false);
97 for (int st : REST_OF_STYLES) {
98 names.putAll(getDisplayNamesImpl(calendarType, field, st, locale, false));
99 }
100 } else {
101 // specific style
102 names = getDisplayNamesImpl(calendarType, field, style, locale, false);
103 }
104 return names.isEmpty() ? null : names;
105 }
106
107 // NOTE: This method should be used ONLY BY JSR 310 classes.
108 public Map<String, Integer> getJavaTimeDisplayNames(String calendarType, int field, int style, Locale locale) {
109 Map<String, Integer> names;
110 names = getDisplayNamesImpl(calendarType, field, style, locale, true);
111 return names.isEmpty() ? null : names;
112 }
113
114 private Map<String, Integer> getDisplayNamesImpl(String calendarType, int field,
115 int style, Locale locale, boolean javatime) {
116 String key = getResourceKey(calendarType, field, style, javatime);
117 Map<String, Integer> map = new TreeMap<>(LengthBasedComparator.INSTANCE);
118 if (key != null) {
119 LocaleResources lr = LocaleProviderAdapter.forType(type).getLocaleResources(locale);
120 String[] strings = javatime ? lr.getJavaTimeNames(key) : lr.getCalendarNames(key);
121 if (strings != null) {
122 if (!hasDuplicates(strings)) {
123 if (field == YEAR) {
124 if (strings.length > 0) {
125 map.put(strings[0], 1);
126 }
127 } else {
128 int base = (field == DAY_OF_WEEK) ? 1 : 0;
129 for (int i = 0; i < strings.length; i++) {
130 String name = strings[i];
131 // Ignore any empty string (some standalone month names
132 // are not defined)
133 if (name.length() == 0) {
134 continue;
135 }
136 map.put(name, base + i);
137 }
138 }
139 }
140 }
205 @Override
206 public Set<String> getAvailableLanguageTags() {
207 return langtags;
208 }
209
210 private boolean hasDuplicates(String[] strings) {
211 int len = strings.length;
212 for (int i = 0; i < len - 1; i++) {
213 String a = strings[i];
214 if (a != null) {
215 for (int j = i + 1; j < len; j++) {
216 if (a.equals(strings[j])) {
217 return true;
218 }
219 }
220 }
221 }
222 return false;
223 }
224
225 private String getResourceKey(String type, int field, int style, boolean javatime) {
226 int baseStyle = getBaseStyle(style);
227 boolean isStandalone = (style != baseStyle);
228
229 if ("gregory".equals(type)) {
230 type = null;
231 }
232 boolean isNarrow = (baseStyle == NARROW_FORMAT);
233 StringBuilder key = new StringBuilder();
234 // If javatime is true, use prefix "java.time.".
235 if (javatime) {
236 key.append("java.time.");
237 }
238 switch (field) {
239 case ERA:
240 if (type != null) {
241 key.append(type).append('.');
242 }
243 if (isNarrow) {
244 key.append("narrow.");
245 } else {
246 // JRE and CLDR use different resource key conventions
247 // due to historical reasons. (JRE DateFormatSymbols.getEras returns
248 // abbreviations while other getShort*() return abbreviations.)
249 if (this.type == LocaleProviderAdapter.Type.JRE) {
250 if (javatime) {
251 if (baseStyle == LONG) {
252 key.append("long.");
253 }
254 }
255 if (baseStyle == SHORT) {
256 key.append("short.");
257 }
258 } else { // this.type == LocaleProviderAdapter.Type.CLDR
259 if (baseStyle == LONG) {
260 key.append("long.");
261 }
262 }
263 }
264 key.append("Eras");
265 break;
266
267 case YEAR:
268 if (!isNarrow) {
269 key.append(type).append(".FirstYear");
270 }
271 break;
272
273 case MONTH:
274 if ("islamic".equals(type)) {
275 key.append(type).append('.');
276 }
277 if (isStandalone) {
278 key.append("standalone.");
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