libcore_icu_ICU.cpp revision 480537d9d51add98bffe6d9a9ef3b1022b959336 
1/*
2 * Copyright (C) 2008 The Android Open Source Project
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
17#define LOG_TAG "ICU"
18
19#include "IcuUtilities.h"
20#include "JNIHelp.h"
21#include "JniConstants.h"
22#include "JniException.h"
23#include "ScopedFd.h"
24#include "ScopedJavaUnicodeString.h"
25#include "ScopedLocalRef.h"
26#include "ScopedUtfChars.h"
27#include "UniquePtr.h"
28#include "cutils/log.h"
29#include "toStringArray.h"
30#include "unicode/calendar.h"
31#include "unicode/datefmt.h"
32#include "unicode/dcfmtsym.h"
33#include "unicode/decimfmt.h"
34#include "unicode/dtfmtsym.h"
35#include "unicode/dtptngen.h"
36#include "unicode/gregocal.h"
37#include "unicode/locid.h"
38#include "unicode/numfmt.h"
39#include "unicode/strenum.h"
40#include "unicode/ubrk.h"
41#include "unicode/ucal.h"
42#include "unicode/uclean.h"
43#include "unicode/ucol.h"
44#include "unicode/ucurr.h"
45#include "unicode/udat.h"
46#include "unicode/uloc.h"
47#include "unicode/ulocdata.h"
48#include "unicode/ustring.h"
49#include "ureslocs.h"
50#include "valueOf.h"
51
52#include <errno.h>
53#include <fcntl.h>
54#include <stdlib.h>
55#include <string.h>
56#include <string>
57#include <sys/mman.h>
58#include <sys/stat.h>
59#include <sys/time.h>
60#include <sys/types.h>
61#include <time.h>
62#include <unistd.h>
63
64// TODO: put this in a header file and use it everywhere!
65// DISALLOW_COPY_AND_ASSIGN disallows the copy and operator= functions.
66// It goes in the private: declarations in a class.
67#define DISALLOW_COPY_AND_ASSIGN(TypeName) \
68    TypeName(const TypeName&); \
69    void operator=(const TypeName&)
70
71class ScopedResourceBundle {
72 public:
73  ScopedResourceBundle(UResourceBundle* bundle) : bundle_(bundle) {
74  }
75
76  ~ScopedResourceBundle() {
77    if (bundle_ != NULL) {
78      ures_close(bundle_);
79    }
80  }
81
82  UResourceBundle* get() {
83    return bundle_;
84  }
85
86  bool hasKey(const char* key) {
87    UErrorCode status = U_ZERO_ERROR;
88    ures_getStringByKey(bundle_, key, NULL, &status);
89    return U_SUCCESS(status);
90  }
91
92 private:
93  UResourceBundle* bundle_;
94  DISALLOW_COPY_AND_ASSIGN(ScopedResourceBundle);
95};
96
97static jstring ICU_addLikelySubtags(JNIEnv* env, jclass, jstring javaLocale) {
98    UErrorCode status = U_ZERO_ERROR;
99    ScopedUtfChars localeID(env, javaLocale);
100    char maximizedLocaleID[ULOC_FULLNAME_CAPACITY];
101    uloc_addLikelySubtags(localeID.c_str(), maximizedLocaleID, sizeof(maximizedLocaleID), &status);
102    if (U_FAILURE(status)) {
103        return javaLocale;
104    }
105    return env->NewStringUTF(maximizedLocaleID);
106}
107
108static jstring ICU_getScript(JNIEnv* env, jclass, jstring javaLocale) {
109    UErrorCode status = U_ZERO_ERROR;
110    ScopedUtfChars localeID(env, javaLocale);
111    char script[ULOC_SCRIPT_CAPACITY];
112    uloc_getScript(localeID.c_str(), script, sizeof(script), &status);
113    if (U_FAILURE(status)) {
114        return NULL;
115    }
116    return env->NewStringUTF(script);
117}
118
119static jint ICU_getCurrencyFractionDigits(JNIEnv* env, jclass, jstring javaCurrencyCode) {
120  ScopedJavaUnicodeString currencyCode(env, javaCurrencyCode);
121  if (!currencyCode.valid()) {
122    return 0;
123  }
124  UnicodeString icuCurrencyCode(currencyCode.unicodeString());
125  UErrorCode status = U_ZERO_ERROR;
126  return ucurr_getDefaultFractionDigits(icuCurrencyCode.getTerminatedBuffer(), &status);
127}
128
129// TODO: rewrite this with int32_t ucurr_forLocale(const char* locale, UChar* buff, int32_t buffCapacity, UErrorCode* ec)...
130static jstring ICU_getCurrencyCode(JNIEnv* env, jclass, jstring javaCountryCode) {
131    UErrorCode status = U_ZERO_ERROR;
132    ScopedResourceBundle supplData(ures_openDirect(U_ICUDATA_CURR, "supplementalData", &status));
133    if (U_FAILURE(status)) {
134        return NULL;
135    }
136
137    ScopedResourceBundle currencyMap(ures_getByKey(supplData.get(), "CurrencyMap", NULL, &status));
138    if (U_FAILURE(status)) {
139        return NULL;
140    }
141
142    ScopedUtfChars countryCode(env, javaCountryCode);
143    ScopedResourceBundle currency(ures_getByKey(currencyMap.get(), countryCode.c_str(), NULL, &status));
144    if (U_FAILURE(status)) {
145        return NULL;
146    }
147
148    ScopedResourceBundle currencyElem(ures_getByIndex(currency.get(), 0, NULL, &status));
149    if (U_FAILURE(status)) {
150        return env->NewStringUTF("XXX");
151    }
152
153    // Check if there's a 'to' date. If there is, the currency isn't used anymore.
154    ScopedResourceBundle currencyTo(ures_getByKey(currencyElem.get(), "to", NULL, &status));
155    if (!U_FAILURE(status)) {
156        return NULL;
157    }
158    // Ignore the failure to find a 'to' date.
159    status = U_ZERO_ERROR;
160
161    ScopedResourceBundle currencyId(ures_getByKey(currencyElem.get(), "id", NULL, &status));
162    if (U_FAILURE(status)) {
163        // No id defined for this country
164        return env->NewStringUTF("XXX");
165    }
166
167    int32_t charCount;
168    const jchar* chars = ures_getString(currencyId.get(), &charCount, &status);
169    return (charCount == 0) ? env->NewStringUTF("XXX") : env->NewString(chars, charCount);
170}
171
172static jstring getCurrencyName(JNIEnv* env, jstring javaLocaleName, jstring javaCurrencyCode, UCurrNameStyle nameStyle) {
173  ScopedUtfChars localeName(env, javaLocaleName);
174  if (localeName.c_str() == NULL) {
175    return NULL;
176  }
177  ScopedJavaUnicodeString currencyCode(env, javaCurrencyCode);
178  if (!currencyCode.valid()) {
179    return NULL;
180  }
181  UnicodeString icuCurrencyCode(currencyCode.unicodeString());
182  UErrorCode status = U_ZERO_ERROR;
183  UBool isChoiceFormat = false;
184  int32_t charCount;
185  const UChar* chars = ucurr_getName(icuCurrencyCode.getTerminatedBuffer(), localeName.c_str(),
186                                     nameStyle, &isChoiceFormat, &charCount, &status);
187  if (status == U_USING_DEFAULT_WARNING) {
188    if (nameStyle == UCURR_SYMBOL_NAME) {
189      // ICU doesn't distinguish between falling back to the root locale and meeting a genuinely
190      // unknown currency. The Currency class does.
191      if (!ucurr_isAvailable(icuCurrencyCode.getTerminatedBuffer(), U_DATE_MIN, U_DATE_MAX, &status)) {
192        return NULL;
193      }
194    }
195    if (nameStyle == UCURR_LONG_NAME) {
196      // ICU's default is English. We want the ISO 4217 currency code instead.
197      chars = icuCurrencyCode.getBuffer();
198      charCount = icuCurrencyCode.length();
199    }
200  }
201  return (charCount == 0) ? NULL : env->NewString(chars, charCount);
202}
203
204static jstring ICU_getCurrencyDisplayName(JNIEnv* env, jclass, jstring javaLocaleName, jstring javaCurrencyCode) {
205  return getCurrencyName(env, javaLocaleName, javaCurrencyCode, UCURR_LONG_NAME);
206}
207
208static jstring ICU_getCurrencySymbol(JNIEnv* env, jclass, jstring javaLocaleName, jstring javaCurrencyCode) {
209  return getCurrencyName(env, javaLocaleName, javaCurrencyCode, UCURR_SYMBOL_NAME);
210}
211
212static jstring ICU_getDisplayCountryNative(JNIEnv* env, jclass, jstring targetLocale, jstring locale) {
213    Locale loc = getLocale(env, locale);
214    Locale targetLoc = getLocale(env, targetLocale);
215    UnicodeString str;
216    targetLoc.getDisplayCountry(loc, str);
217    return env->NewString(str.getBuffer(), str.length());
218}
219
220static jstring ICU_getDisplayLanguageNative(JNIEnv* env, jclass, jstring targetLocale, jstring locale) {
221    Locale loc = getLocale(env, locale);
222    Locale targetLoc = getLocale(env, targetLocale);
223    UnicodeString str;
224    targetLoc.getDisplayLanguage(loc, str);
225    return env->NewString(str.getBuffer(), str.length());
226}
227
228static jstring ICU_getDisplayVariantNative(JNIEnv* env, jclass, jstring targetLocale, jstring locale) {
229    Locale loc = getLocale(env, locale);
230    Locale targetLoc = getLocale(env, targetLocale);
231    UnicodeString str;
232    targetLoc.getDisplayVariant(loc, str);
233    return env->NewString(str.getBuffer(), str.length());
234}
235
236static jstring ICU_getISO3CountryNative(JNIEnv* env, jclass, jstring locale) {
237    Locale loc = getLocale(env, locale);
238    return env->NewStringUTF(loc.getISO3Country());
239}
240
241static jstring ICU_getISO3LanguageNative(JNIEnv* env, jclass, jstring locale) {
242    Locale loc = getLocale(env, locale);
243    return env->NewStringUTF(loc.getISO3Language());
244}
245
246static jobjectArray ICU_getISOCountriesNative(JNIEnv* env, jclass) {
247    return toStringArray(env, Locale::getISOCountries());
248}
249
250static jobjectArray ICU_getISOLanguagesNative(JNIEnv* env, jclass) {
251    return toStringArray(env, Locale::getISOLanguages());
252}
253
254static jobjectArray ICU_getAvailableLocalesNative(JNIEnv* env, jclass) {
255    return toStringArray(env, uloc_countAvailable, uloc_getAvailable);
256}
257
258static jobjectArray ICU_getAvailableBreakIteratorLocalesNative(JNIEnv* env, jclass) {
259    return toStringArray(env, ubrk_countAvailable, ubrk_getAvailable);
260}
261
262static jobjectArray ICU_getAvailableCalendarLocalesNative(JNIEnv* env, jclass) {
263    return toStringArray(env, ucal_countAvailable, ucal_getAvailable);
264}
265
266static jobjectArray ICU_getAvailableCollatorLocalesNative(JNIEnv* env, jclass) {
267    return toStringArray(env, ucol_countAvailable, ucol_getAvailable);
268}
269
270static jobjectArray ICU_getAvailableDateFormatLocalesNative(JNIEnv* env, jclass) {
271    return toStringArray(env, udat_countAvailable, udat_getAvailable);
272}
273
274static jobjectArray ICU_getAvailableNumberFormatLocalesNative(JNIEnv* env, jclass) {
275    return toStringArray(env, unum_countAvailable, unum_getAvailable);
276}
277
278static void setIntegerField(JNIEnv* env, jobject obj, const char* fieldName, int value) {
279    ScopedLocalRef<jobject> integerValue(env, integerValueOf(env, value));
280    jfieldID fid = env->GetFieldID(JniConstants::localeDataClass, fieldName, "Ljava/lang/Integer;");
281    env->SetObjectField(obj, fid, integerValue.get());
282}
283
284static void setStringField(JNIEnv* env, jobject obj, const char* fieldName, jstring value) {
285    jfieldID fid = env->GetFieldID(JniConstants::localeDataClass, fieldName, "Ljava/lang/String;");
286    env->SetObjectField(obj, fid, value);
287    env->DeleteLocalRef(value);
288}
289
290static void setStringArrayField(JNIEnv* env, jobject obj, const char* fieldName, jobjectArray value) {
291    jfieldID fid = env->GetFieldID(JniConstants::localeDataClass, fieldName, "[Ljava/lang/String;");
292    env->SetObjectField(obj, fid, value);
293}
294
295static void setStringArrayField(JNIEnv* env, jobject obj, const char* fieldName, const UnicodeString* valueArray, int32_t size) {
296    ScopedLocalRef<jobjectArray> result(env, env->NewObjectArray(size, JniConstants::stringClass, NULL));
297    for (int32_t i = 0; i < size ; i++) {
298        ScopedLocalRef<jstring> s(env, env->NewString(valueArray[i].getBuffer(),valueArray[i].length()));
299        if (env->ExceptionCheck()) {
300            return;
301        }
302        env->SetObjectArrayElement(result.get(), i, s.get());
303        if (env->ExceptionCheck()) {
304            return;
305        }
306    }
307    setStringArrayField(env, obj, fieldName, result.get());
308}
309
310static void setStringField(JNIEnv* env, jobject obj, const char* fieldName, UResourceBundle* bundle, int index) {
311  UErrorCode status = U_ZERO_ERROR;
312  int charCount;
313  const UChar* chars = ures_getStringByIndex(bundle, index, &charCount, &status);
314  if (U_SUCCESS(status)) {
315    setStringField(env, obj, fieldName, env->NewString(chars, charCount));
316  } else {
317    ALOGE("Error setting String field %s from ICU resource (index %d): %s", fieldName, index, u_errorName(status));
318  }
319}
320
321static void setStringField(JNIEnv* env, jobject obj, const char* fieldName, UResourceBundle* bundle, const char* key) {
322  UErrorCode status = U_ZERO_ERROR;
323  int charCount;
324  const UChar* chars = ures_getStringByKey(bundle, key, &charCount, &status);
325  if (U_SUCCESS(status)) {
326    setStringField(env, obj, fieldName, env->NewString(chars, charCount));
327  } else {
328    ALOGE("Error setting String field %s from ICU resource (key %s): %s", fieldName, key, u_errorName(status));
329  }
330}
331
332static void setCharField(JNIEnv* env, jobject obj, const char* fieldName, const UnicodeString& value) {
333    if (value.length() == 0) {
334        return;
335    }
336    jfieldID fid = env->GetFieldID(JniConstants::localeDataClass, fieldName, "C");
337    env->SetCharField(obj, fid, value.charAt(0));
338}
339
340static void setStringField(JNIEnv* env, jobject obj, const char* fieldName, const UnicodeString& value) {
341    const UChar* chars = value.getBuffer();
342    setStringField(env, obj, fieldName, env->NewString(chars, value.length()));
343}
344
345static void setNumberPatterns(JNIEnv* env, jobject obj, Locale& locale) {
346    UErrorCode status = U_ZERO_ERROR;
347
348    UnicodeString pattern;
349    UniquePtr<DecimalFormat> fmt(static_cast<DecimalFormat*>(NumberFormat::createInstance(locale, UNUM_CURRENCY, status)));
350    pattern = fmt->toPattern(pattern.remove());
351    setStringField(env, obj, "currencyPattern", pattern);
352
353    fmt.reset(static_cast<DecimalFormat*>(NumberFormat::createInstance(locale, UNUM_DECIMAL, status)));
354    pattern = fmt->toPattern(pattern.remove());
355    setStringField(env, obj, "numberPattern", pattern);
356
357    fmt.reset(static_cast<DecimalFormat*>(NumberFormat::createInstance(locale, UNUM_PERCENT, status)));
358    pattern = fmt->toPattern(pattern.remove());
359    setStringField(env, obj, "percentPattern", pattern);
360}
361
362static void setDecimalFormatSymbolsData(JNIEnv* env, jobject obj, Locale& locale) {
363    UErrorCode status = U_ZERO_ERROR;
364    DecimalFormatSymbols dfs(locale, status);
365
366    setCharField(env, obj, "decimalSeparator", dfs.getSymbol(DecimalFormatSymbols::kDecimalSeparatorSymbol));
367    setCharField(env, obj, "groupingSeparator", dfs.getSymbol(DecimalFormatSymbols::kGroupingSeparatorSymbol));
368    setCharField(env, obj, "patternSeparator", dfs.getSymbol(DecimalFormatSymbols::kPatternSeparatorSymbol));
369    setCharField(env, obj, "percent", dfs.getSymbol(DecimalFormatSymbols::kPercentSymbol));
370    setCharField(env, obj, "perMill", dfs.getSymbol(DecimalFormatSymbols::kPerMillSymbol));
371    setCharField(env, obj, "monetarySeparator", dfs.getSymbol(DecimalFormatSymbols::kMonetarySeparatorSymbol));
372    setCharField(env, obj, "minusSign", dfs.getSymbol(DecimalFormatSymbols:: kMinusSignSymbol));
373    setStringField(env, obj, "exponentSeparator", dfs.getSymbol(DecimalFormatSymbols::kExponentialSymbol));
374    setStringField(env, obj, "infinity", dfs.getSymbol(DecimalFormatSymbols::kInfinitySymbol));
375    setStringField(env, obj, "NaN", dfs.getSymbol(DecimalFormatSymbols::kNaNSymbol));
376    setCharField(env, obj, "zeroDigit", dfs.getSymbol(DecimalFormatSymbols::kZeroDigitSymbol));
377}
378
379
380// Iterates up through the locale hierarchy. So "en_US" would return "en_US", "en", "".
381class LocaleNameIterator {
382 public:
383  LocaleNameIterator(const char* locale_name, UErrorCode& status) : status_(status), has_next_(true) {
384    strcpy(locale_name_, locale_name);
385    locale_name_length_ = strlen(locale_name_);
386  }
387
388  const char* Get() {
389      return locale_name_;
390  }
391
392  bool HasNext() {
393    return has_next_;
394  }
395
396  void Up() {
397    locale_name_length_ = uloc_getParent(locale_name_, locale_name_, sizeof(locale_name_), &status_);
398    if (locale_name_length_ == 0) {
399      has_next_ = false;
400    }
401  }
402
403 private:
404  UErrorCode& status_;
405  bool has_next_;
406  char locale_name_[ULOC_FULLNAME_CAPACITY];
407  int32_t locale_name_length_;
408
409  DISALLOW_COPY_AND_ASSIGN(LocaleNameIterator);
410};
411
412static bool getDateTimePatterns(JNIEnv* env, jobject localeData, const char* locale_name) {
413  UErrorCode status = U_ZERO_ERROR;
414  ScopedResourceBundle root(ures_open(NULL, locale_name, &status));
415  if (U_FAILURE(status)) {
416    return false;
417  }
418  ScopedResourceBundle calendar(ures_getByKey(root.get(), "calendar", NULL, &status));
419  if (U_FAILURE(status)) {
420    return false;
421  }
422  ScopedResourceBundle gregorian(ures_getByKey(calendar.get(), "gregorian", NULL, &status));
423  if (U_FAILURE(status)) {
424    return false;
425  }
426  ScopedResourceBundle dateTimePatterns(ures_getByKey(gregorian.get(), "DateTimePatterns", NULL, &status));
427  if (U_FAILURE(status)) {
428    return false;
429  }
430  setStringField(env, localeData, "fullTimeFormat", dateTimePatterns.get(), 0);
431  setStringField(env, localeData, "longTimeFormat", dateTimePatterns.get(), 1);
432  setStringField(env, localeData, "mediumTimeFormat", dateTimePatterns.get(), 2);
433  setStringField(env, localeData, "shortTimeFormat", dateTimePatterns.get(), 3);
434  setStringField(env, localeData, "fullDateFormat", dateTimePatterns.get(), 4);
435  setStringField(env, localeData, "longDateFormat", dateTimePatterns.get(), 5);
436  setStringField(env, localeData, "mediumDateFormat", dateTimePatterns.get(), 6);
437  setStringField(env, localeData, "shortDateFormat", dateTimePatterns.get(), 7);
438  return true;
439}
440
441static bool getTimeFormats12And24(JNIEnv* env, jobject localeData, Locale& locale) {
442  UErrorCode status = U_ZERO_ERROR;
443  DateTimePatternGenerator* generator = DateTimePatternGenerator::createInstance(locale, status);
444  if (U_FAILURE(status)) {
445    return false;
446  }
447
448  UnicodeString pattern_Hm(generator->getBestPattern(UnicodeString("Hm", 2, US_INV), status));
449  if (U_FAILURE(status)) {
450    return false;
451  }
452
453  UnicodeString pattern_hm(generator->getBestPattern(UnicodeString("hm", 2, US_INV), status));
454  if (U_FAILURE(status)) {
455    return false;
456  }
457
458  setStringField(env, localeData, "timeFormat12", pattern_hm);
459  setStringField(env, localeData, "timeFormat24", pattern_Hm);
460  return true;
461}
462
463static bool getYesterdayTodayAndTomorrow(JNIEnv* env, jobject localeData, const char* locale_name) {
464  UErrorCode status = U_ZERO_ERROR;
465  ScopedResourceBundle root(ures_open(NULL, locale_name, &status));
466  if (U_FAILURE(status)) {
467    return false;
468  }
469  ScopedResourceBundle fields(ures_getByKey(root.get(), "fields", NULL, &status));
470  if (U_FAILURE(status)) {
471    return false;
472  }
473  ScopedResourceBundle day(ures_getByKey(fields.get(), "day", NULL, &status));
474  if (U_FAILURE(status)) {
475    return false;
476  }
477  ScopedResourceBundle relative(ures_getByKey(day.get(), "relative", NULL, &status));
478  if (U_FAILURE(status)) {
479    return false;
480  }
481  // bn_BD only has a "-2" entry.
482  if (relative.hasKey("-1") && relative.hasKey("0") && relative.hasKey("1")) {
483    setStringField(env, localeData, "yesterday", relative.get(), "-1");
484    setStringField(env, localeData, "today", relative.get(), "0");
485    setStringField(env, localeData, "tomorrow", relative.get(), "1");
486    return true;
487  }
488  return false;
489}
490
491static jboolean ICU_initLocaleDataImpl(JNIEnv* env, jclass, jstring javaLocaleName, jobject localeData) {
492    ScopedUtfChars localeName(env, javaLocaleName);
493    if (localeName.c_str() == NULL) {
494        return JNI_FALSE;
495    }
496    if (localeName.size() >= ULOC_FULLNAME_CAPACITY) {
497        return JNI_FALSE; // ICU has a fixed-length limit.
498    }
499
500    // Get the DateTimePatterns.
501    UErrorCode status = U_ZERO_ERROR;
502    bool foundDateTimePatterns = false;
503    for (LocaleNameIterator it(localeName.c_str(), status); it.HasNext(); it.Up()) {
504      if (getDateTimePatterns(env, localeData, it.Get())) {
505          foundDateTimePatterns = true;
506          break;
507      }
508    }
509    if (!foundDateTimePatterns) {
510        ALOGE("Couldn't find ICU DateTimePatterns for %s", localeName.c_str());
511        return JNI_FALSE;
512    }
513
514    // Get the "h:mm a" and "HH:mm" 12- and 24-hour time format strings.
515    Locale locale = getLocale(env, javaLocaleName);
516    if (!getTimeFormats12And24(env, localeData, locale)) {
517        ALOGE("Couldn't find ICU 12- and 24-hour time formats for %s", localeName.c_str());
518        return JNI_FALSE;
519    }
520
521    // Get the "Yesterday", "Today", and "Tomorrow" strings.
522    bool foundYesterdayTodayAndTomorrow = false;
523    for (LocaleNameIterator it(localeName.c_str(), status); it.HasNext(); it.Up()) {
524      if (getYesterdayTodayAndTomorrow(env, localeData, it.Get())) {
525        foundYesterdayTodayAndTomorrow = true;
526        break;
527      }
528    }
529    if (!foundYesterdayTodayAndTomorrow) {
530      ALOGE("Couldn't find ICU yesterday/today/tomorrow for %s", localeName.c_str());
531      return JNI_FALSE;
532    }
533
534    status = U_ZERO_ERROR;
535    UniquePtr<Calendar> cal(Calendar::createInstance(locale, status));
536    if (U_FAILURE(status)) {
537        return JNI_FALSE;
538    }
539
540    setIntegerField(env, localeData, "firstDayOfWeek", cal->getFirstDayOfWeek());
541    setIntegerField(env, localeData, "minimalDaysInFirstWeek", cal->getMinimalDaysInFirstWeek());
542
543    // Get DateFormatSymbols.
544    status = U_ZERO_ERROR;
545    DateFormatSymbols dateFormatSym(locale, status);
546    if (U_FAILURE(status)) {
547        return JNI_FALSE;
548    }
549
550    // Get AM/PM and BC/AD.
551    int32_t count = 0;
552    const UnicodeString* amPmStrs = dateFormatSym.getAmPmStrings(count);
553    setStringArrayField(env, localeData, "amPm", amPmStrs, count);
554    const UnicodeString* erasStrs = dateFormatSym.getEras(count);
555    setStringArrayField(env, localeData, "eras", erasStrs, count);
556
557    const UnicodeString* longMonthNames =
558       dateFormatSym.getMonths(count, DateFormatSymbols::FORMAT, DateFormatSymbols::WIDE);
559    setStringArrayField(env, localeData, "longMonthNames", longMonthNames, count);
560    const UnicodeString* shortMonthNames =
561        dateFormatSym.getMonths(count, DateFormatSymbols::FORMAT, DateFormatSymbols::ABBREVIATED);
562    setStringArrayField(env, localeData, "shortMonthNames", shortMonthNames, count);
563    const UnicodeString* tinyMonthNames =
564        dateFormatSym.getMonths(count, DateFormatSymbols::FORMAT, DateFormatSymbols::NARROW);
565    setStringArrayField(env, localeData, "tinyMonthNames", tinyMonthNames, count);
566    const UnicodeString* longWeekdayNames =
567        dateFormatSym.getWeekdays(count, DateFormatSymbols::FORMAT, DateFormatSymbols::WIDE);
568    setStringArrayField(env, localeData, "longWeekdayNames", longWeekdayNames, count);
569    const UnicodeString* shortWeekdayNames =
570        dateFormatSym.getWeekdays(count, DateFormatSymbols::FORMAT, DateFormatSymbols::ABBREVIATED);
571    setStringArrayField(env, localeData, "shortWeekdayNames", shortWeekdayNames, count);
572    const UnicodeString* tinyWeekdayNames =
573        dateFormatSym.getWeekdays(count, DateFormatSymbols::FORMAT, DateFormatSymbols::NARROW);
574    setStringArrayField(env, localeData, "tinyWeekdayNames", tinyWeekdayNames, count);
575
576    const UnicodeString* longStandAloneMonthNames =
577        dateFormatSym.getMonths(count, DateFormatSymbols::STANDALONE, DateFormatSymbols::WIDE);
578    setStringArrayField(env, localeData, "longStandAloneMonthNames", longStandAloneMonthNames, count);
579    const UnicodeString* shortStandAloneMonthNames =
580        dateFormatSym.getMonths(count, DateFormatSymbols::STANDALONE, DateFormatSymbols::ABBREVIATED);
581    setStringArrayField(env, localeData, "shortStandAloneMonthNames", shortStandAloneMonthNames, count);
582    const UnicodeString* tinyStandAloneMonthNames =
583        dateFormatSym.getMonths(count, DateFormatSymbols::STANDALONE, DateFormatSymbols::NARROW);
584    setStringArrayField(env, localeData, "tinyStandAloneMonthNames", tinyStandAloneMonthNames, count);
585    const UnicodeString* longStandAloneWeekdayNames =
586        dateFormatSym.getWeekdays(count, DateFormatSymbols::STANDALONE, DateFormatSymbols::WIDE);
587    setStringArrayField(env, localeData, "longStandAloneWeekdayNames", longStandAloneWeekdayNames, count);
588    const UnicodeString* shortStandAloneWeekdayNames =
589        dateFormatSym.getWeekdays(count, DateFormatSymbols::STANDALONE, DateFormatSymbols::ABBREVIATED);
590    setStringArrayField(env, localeData, "shortStandAloneWeekdayNames", shortStandAloneWeekdayNames, count);
591    const UnicodeString* tinyStandAloneWeekdayNames =
592        dateFormatSym.getWeekdays(count, DateFormatSymbols::STANDALONE, DateFormatSymbols::NARROW);
593    setStringArrayField(env, localeData, "tinyStandAloneWeekdayNames", tinyStandAloneWeekdayNames, count);
594
595    status = U_ZERO_ERROR;
596
597    // For numberPatterns and symbols.
598    setNumberPatterns(env, localeData, locale);
599    setDecimalFormatSymbolsData(env, localeData, locale);
600
601    jstring countryCode = env->NewStringUTF(Locale::createFromName(localeName.c_str()).getCountry());
602    jstring internationalCurrencySymbol = ICU_getCurrencyCode(env, NULL, countryCode);
603    env->DeleteLocalRef(countryCode);
604    countryCode = NULL;
605
606    jstring currencySymbol = NULL;
607    if (internationalCurrencySymbol != NULL) {
608        currencySymbol = ICU_getCurrencySymbol(env, NULL, javaLocaleName, internationalCurrencySymbol);
609    } else {
610        internationalCurrencySymbol = env->NewStringUTF("XXX");
611    }
612    if (currencySymbol == NULL) {
613        // This is the UTF-8 encoding of U+00A4 (CURRENCY SIGN).
614        currencySymbol = env->NewStringUTF("\xc2\xa4");
615    }
616    setStringField(env, localeData, "currencySymbol", currencySymbol);
617    setStringField(env, localeData, "internationalCurrencySymbol", internationalCurrencySymbol);
618
619    return JNI_TRUE;
620}
621
622static jstring ICU_toLowerCase(JNIEnv* env, jclass, jstring javaString, jstring localeName) {
623  ScopedJavaUnicodeString scopedString(env, javaString);
624  if (!scopedString.valid()) {
625    return NULL;
626  }
627  UnicodeString& s(scopedString.unicodeString());
628  UnicodeString original(s);
629  s.toLower(Locale::createFromName(ScopedUtfChars(env, localeName).c_str()));
630  return s == original ? javaString : env->NewString(s.getBuffer(), s.length());
631}
632
633static jstring ICU_toUpperCase(JNIEnv* env, jclass, jstring javaString, jstring localeName) {
634  ScopedJavaUnicodeString scopedString(env, javaString);
635  if (!scopedString.valid()) {
636    return NULL;
637  }
638  UnicodeString& s(scopedString.unicodeString());
639  UnicodeString original(s);
640  s.toUpper(Locale::createFromName(ScopedUtfChars(env, localeName).c_str()));
641  return s == original ? javaString : env->NewString(s.getBuffer(), s.length());
642}
643
644static jstring versionString(JNIEnv* env, const UVersionInfo& version) {
645    char versionString[U_MAX_VERSION_STRING_LENGTH];
646    u_versionToString(const_cast<UVersionInfo&>(version), &versionString[0]);
647    return env->NewStringUTF(versionString);
648}
649
650static jstring ICU_getCldrVersion(JNIEnv* env, jclass) {
651  UErrorCode status = U_ZERO_ERROR;
652  UVersionInfo cldrVersion;
653  ulocdata_getCLDRVersion(cldrVersion, &status);
654  return versionString(env, cldrVersion);
655}
656
657static jstring ICU_getIcuVersion(JNIEnv* env, jclass) {
658    UVersionInfo icuVersion;
659    u_getVersion(icuVersion);
660    return versionString(env, icuVersion);
661}
662
663static jstring ICU_getUnicodeVersion(JNIEnv* env, jclass) {
664    UVersionInfo unicodeVersion;
665    u_getUnicodeVersion(unicodeVersion);
666    return versionString(env, unicodeVersion);
667}
668
669struct EnumerationCounter {
670    const size_t count;
671    EnumerationCounter(size_t count) : count(count) {}
672    size_t operator()() { return count; }
673};
674struct EnumerationGetter {
675    UEnumeration* e;
676    UErrorCode* status;
677    EnumerationGetter(UEnumeration* e, UErrorCode* status) : e(e), status(status) {}
678    const UChar* operator()(int32_t* charCount) { return uenum_unext(e, charCount, status); }
679};
680static jobject ICU_getAvailableCurrencyCodes(JNIEnv* env, jclass) {
681    UErrorCode status = U_ZERO_ERROR;
682    UEnumeration* e(ucurr_openISOCurrencies(UCURR_COMMON|UCURR_NON_DEPRECATED, &status));
683    EnumerationCounter counter(uenum_count(e, &status));
684    if (maybeThrowIcuException(env, "uenum_count", status)) {
685        return NULL;
686    }
687    EnumerationGetter getter(e, &status);
688    jobject result = toStringArray16(env, &counter, &getter);
689    maybeThrowIcuException(env, "uenum_unext", status);
690    uenum_close(e);
691    return result;
692}
693
694static jstring ICU_getBestDateTimePattern(JNIEnv* env, jclass, jstring javaSkeleton, jstring javaLocaleName) {
695  Locale locale = getLocale(env, javaLocaleName);
696  UErrorCode status = U_ZERO_ERROR;
697  DateTimePatternGenerator* generator = DateTimePatternGenerator::createInstance(locale, status);
698  if (maybeThrowIcuException(env, "DateTimePatternGenerator::createInstance", status)) {
699    return NULL;
700  }
701
702  ScopedJavaUnicodeString skeletonHolder(env, javaSkeleton);
703  if (!skeletonHolder.valid()) {
704    return NULL;
705  }
706  UnicodeString result(generator->getBestPattern(skeletonHolder.unicodeString(), status));
707  if (maybeThrowIcuException(env, "DateTimePatternGenerator::getBestPattern", status)) {
708    return NULL;
709  }
710
711  return env->NewString(result.getBuffer(), result.length());
712}
713
714static JNINativeMethod gMethods[] = {
715    NATIVE_METHOD(ICU, addLikelySubtags, "(Ljava/lang/String;)Ljava/lang/String;"),
716    NATIVE_METHOD(ICU, getAvailableBreakIteratorLocalesNative, "()[Ljava/lang/String;"),
717    NATIVE_METHOD(ICU, getAvailableCalendarLocalesNative, "()[Ljava/lang/String;"),
718    NATIVE_METHOD(ICU, getAvailableCollatorLocalesNative, "()[Ljava/lang/String;"),
719    NATIVE_METHOD(ICU, getAvailableCurrencyCodes, "()[Ljava/lang/String;"),
720    NATIVE_METHOD(ICU, getAvailableDateFormatLocalesNative, "()[Ljava/lang/String;"),
721    NATIVE_METHOD(ICU, getAvailableLocalesNative, "()[Ljava/lang/String;"),
722    NATIVE_METHOD(ICU, getAvailableNumberFormatLocalesNative, "()[Ljava/lang/String;"),
723    NATIVE_METHOD(ICU, getBestDateTimePattern, "(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;"),
724    NATIVE_METHOD(ICU, getCldrVersion, "()Ljava/lang/String;"),
725    NATIVE_METHOD(ICU, getCurrencyCode, "(Ljava/lang/String;)Ljava/lang/String;"),
726    NATIVE_METHOD(ICU, getCurrencyDisplayName, "(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;"),
727    NATIVE_METHOD(ICU, getCurrencyFractionDigits, "(Ljava/lang/String;)I"),
728    NATIVE_METHOD(ICU, getCurrencySymbol, "(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;"),
729    NATIVE_METHOD(ICU, getDisplayCountryNative, "(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;"),
730    NATIVE_METHOD(ICU, getDisplayLanguageNative, "(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;"),
731    NATIVE_METHOD(ICU, getDisplayVariantNative, "(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;"),
732    NATIVE_METHOD(ICU, getISO3CountryNative, "(Ljava/lang/String;)Ljava/lang/String;"),
733    NATIVE_METHOD(ICU, getISO3LanguageNative, "(Ljava/lang/String;)Ljava/lang/String;"),
734    NATIVE_METHOD(ICU, getISOCountriesNative, "()[Ljava/lang/String;"),
735    NATIVE_METHOD(ICU, getISOLanguagesNative, "()[Ljava/lang/String;"),
736    NATIVE_METHOD(ICU, getIcuVersion, "()Ljava/lang/String;"),
737    NATIVE_METHOD(ICU, getScript, "(Ljava/lang/String;)Ljava/lang/String;"),
738    NATIVE_METHOD(ICU, getUnicodeVersion, "()Ljava/lang/String;"),
739    NATIVE_METHOD(ICU, initLocaleDataImpl, "(Ljava/lang/String;Llibcore/icu/LocaleData;)Z"),
740    NATIVE_METHOD(ICU, toLowerCase, "(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;"),
741    NATIVE_METHOD(ICU, toUpperCase, "(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;"),
742};
743void register_libcore_icu_ICU(JNIEnv* env) {
744    std::string path;
745    path = u_getDataDirectory();
746    path += "/";
747    path += U_ICUDATA_NAME;
748    path += ".dat";
749
750    #define FAIL_WITH_STRERROR(s) \
751        ALOGE("Couldn't " s " '%s': %s", path.c_str(), strerror(errno)); \
752        abort();
753    #define MAYBE_FAIL_WITH_ICU_ERROR(s) \
754        if (status != U_ZERO_ERROR) {\
755            ALOGE("Couldn't initialize ICU (" s "): %s (%s)", u_errorName(status), path.c_str()); \
756            abort(); \
757        }
758
759    // Open the file and get its length.
760    ScopedFd fd(open(path.c_str(), O_RDONLY));
761    if (fd.get() == -1) {
762        FAIL_WITH_STRERROR("open");
763    }
764    struct stat sb;
765    if (fstat(fd.get(), &sb) == -1) {
766        FAIL_WITH_STRERROR("stat");
767    }
768
769    // Map it.
770    void* data = mmap(NULL, sb.st_size, PROT_READ, MAP_SHARED, fd.get(), 0);
771    if (data == MAP_FAILED) {
772        FAIL_WITH_STRERROR("mmap");
773    }
774
775    // Tell the kernel that accesses are likely to be random rather than sequential.
776    if (madvise(data, sb.st_size, MADV_RANDOM) == -1) {
777        FAIL_WITH_STRERROR("madvise(MADV_RANDOM)");
778    }
779
780    // Tell ICU to use our memory-mapped data.
781    UErrorCode status = U_ZERO_ERROR;
782    udata_setCommonData(data, &status);
783    MAYBE_FAIL_WITH_ICU_ERROR("udata_setCommonData");
784    // Tell ICU it can *only* use our memory-mapped data.
785    udata_setFileAccess(UDATA_NO_FILES, &status);
786    MAYBE_FAIL_WITH_ICU_ERROR("udata_setFileAccess");
787
788    // Failures to find the ICU data tend to be somewhat obscure because ICU loads its data on first
789    // use, which can be anywhere. Force initialization up front so we can report a nice clear error
790    // and bail.
791    u_init(&status);
792    MAYBE_FAIL_WITH_ICU_ERROR("u_init");
793    jniRegisterNativeMethods(env, "libcore/icu/ICU", gMethods, NELEM(gMethods));
794}
795