libcore_icu_ICU.cpp revision 783112d47e2236b6a7e2315c2e50166d755422a7 
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    if (locale_name_length_ == 0) {
398      has_next_ = false;
399    } else {
400      locale_name_length_ = uloc_getParent(locale_name_, locale_name_, sizeof(locale_name_), &status_);
401    }
402  }
403
404 private:
405  UErrorCode& status_;
406  bool has_next_;
407  char locale_name_[ULOC_FULLNAME_CAPACITY];
408  int32_t locale_name_length_;
409
410  DISALLOW_COPY_AND_ASSIGN(LocaleNameIterator);
411};
412
413static bool getDateTimePatterns(JNIEnv* env, jobject localeData, const char* locale_name) {
414  UErrorCode status = U_ZERO_ERROR;
415  ScopedResourceBundle root(ures_open(NULL, locale_name, &status));
416  if (U_FAILURE(status)) {
417    return false;
418  }
419  ScopedResourceBundle calendar(ures_getByKey(root.get(), "calendar", NULL, &status));
420  if (U_FAILURE(status)) {
421    return false;
422  }
423  ScopedResourceBundle gregorian(ures_getByKey(calendar.get(), "gregorian", NULL, &status));
424  if (U_FAILURE(status)) {
425    return false;
426  }
427  ScopedResourceBundle dateTimePatterns(ures_getByKey(gregorian.get(), "DateTimePatterns", NULL, &status));
428  if (U_FAILURE(status)) {
429    return false;
430  }
431  setStringField(env, localeData, "fullTimeFormat", dateTimePatterns.get(), 0);
432  setStringField(env, localeData, "longTimeFormat", dateTimePatterns.get(), 1);
433  setStringField(env, localeData, "mediumTimeFormat", dateTimePatterns.get(), 2);
434  setStringField(env, localeData, "shortTimeFormat", dateTimePatterns.get(), 3);
435  setStringField(env, localeData, "fullDateFormat", dateTimePatterns.get(), 4);
436  setStringField(env, localeData, "longDateFormat", dateTimePatterns.get(), 5);
437  setStringField(env, localeData, "mediumDateFormat", dateTimePatterns.get(), 6);
438  setStringField(env, localeData, "shortDateFormat", dateTimePatterns.get(), 7);
439  return true;
440}
441
442static bool getYesterdayTodayAndTomorrow(JNIEnv* env, jobject localeData, const char* locale_name) {
443  UErrorCode status = U_ZERO_ERROR;
444  ScopedResourceBundle root(ures_open(NULL, locale_name, &status));
445  if (U_FAILURE(status)) {
446    return false;
447  }
448  ScopedResourceBundle fields(ures_getByKey(root.get(), "fields", NULL, &status));
449  if (U_FAILURE(status)) {
450    return false;
451  }
452  ScopedResourceBundle day(ures_getByKey(fields.get(), "day", NULL, &status));
453  if (U_FAILURE(status)) {
454    return false;
455  }
456  ScopedResourceBundle relative(ures_getByKey(day.get(), "relative", NULL, &status));
457  if (U_FAILURE(status)) {
458    return false;
459  }
460  // bn_BD only has a "-2" entry.
461  if (relative.hasKey("-1") && relative.hasKey("0") && relative.hasKey("1")) {
462    setStringField(env, localeData, "yesterday", relative.get(), "-1");
463    setStringField(env, localeData, "today", relative.get(), "0");
464    setStringField(env, localeData, "tomorrow", relative.get(), "1");
465    return true;
466  }
467  return false;
468}
469
470static jboolean ICU_initLocaleDataImpl(JNIEnv* env, jclass, jstring javaLocaleName, jobject localeData) {
471    ScopedUtfChars localeName(env, javaLocaleName);
472    if (localeName.c_str() == NULL) {
473        return JNI_FALSE;
474    }
475    if (localeName.size() >= ULOC_FULLNAME_CAPACITY) {
476        return JNI_FALSE; // ICU has a fixed-length limit.
477    }
478
479    // Get the DateTimePatterns.
480    UErrorCode status = U_ZERO_ERROR;
481    bool foundDateTimePatterns = false;
482    for (LocaleNameIterator it(localeName.c_str(), status); it.HasNext(); it.Up()) {
483      if (getDateTimePatterns(env, localeData, it.Get())) {
484          foundDateTimePatterns = true;
485          break;
486      }
487    }
488    if (!foundDateTimePatterns) {
489        ALOGE("Couldn't find ICU DateTimePatterns for %s", localeName.c_str());
490        return JNI_FALSE;
491    }
492
493    // Get the "Yesterday", "Today", and "Tomorrow" strings.
494    bool foundYesterdayTodayAndTomorrow = false;
495    for (LocaleNameIterator it(localeName.c_str(), status); it.HasNext(); it.Up()) {
496      if (getYesterdayTodayAndTomorrow(env, localeData, it.Get())) {
497        foundYesterdayTodayAndTomorrow = true;
498        break;
499      }
500    }
501    if (!foundYesterdayTodayAndTomorrow) {
502      ALOGE("Couldn't find ICU yesterday/today/tomorrow for %s", localeName.c_str());
503      return JNI_FALSE;
504    }
505
506    status = U_ZERO_ERROR;
507    Locale locale = getLocale(env, javaLocaleName);
508    UniquePtr<Calendar> cal(Calendar::createInstance(locale, status));
509    if (U_FAILURE(status)) {
510        return JNI_FALSE;
511    }
512
513    setIntegerField(env, localeData, "firstDayOfWeek", cal->getFirstDayOfWeek());
514    setIntegerField(env, localeData, "minimalDaysInFirstWeek", cal->getMinimalDaysInFirstWeek());
515
516    // Get DateFormatSymbols.
517    status = U_ZERO_ERROR;
518    DateFormatSymbols dateFormatSym(locale, status);
519    if (U_FAILURE(status)) {
520        return JNI_FALSE;
521    }
522
523    // Get AM/PM and BC/AD.
524    int32_t count = 0;
525    const UnicodeString* amPmStrs = dateFormatSym.getAmPmStrings(count);
526    setStringArrayField(env, localeData, "amPm", amPmStrs, count);
527    const UnicodeString* erasStrs = dateFormatSym.getEras(count);
528    setStringArrayField(env, localeData, "eras", erasStrs, count);
529
530    const UnicodeString* longMonthNames =
531       dateFormatSym.getMonths(count, DateFormatSymbols::FORMAT, DateFormatSymbols::WIDE);
532    setStringArrayField(env, localeData, "longMonthNames", longMonthNames, count);
533    const UnicodeString* shortMonthNames =
534        dateFormatSym.getMonths(count, DateFormatSymbols::FORMAT, DateFormatSymbols::ABBREVIATED);
535    setStringArrayField(env, localeData, "shortMonthNames", shortMonthNames, count);
536    const UnicodeString* tinyMonthNames =
537        dateFormatSym.getMonths(count, DateFormatSymbols::FORMAT, DateFormatSymbols::NARROW);
538    setStringArrayField(env, localeData, "tinyMonthNames", tinyMonthNames, count);
539    const UnicodeString* longWeekdayNames =
540        dateFormatSym.getWeekdays(count, DateFormatSymbols::FORMAT, DateFormatSymbols::WIDE);
541    setStringArrayField(env, localeData, "longWeekdayNames", longWeekdayNames, count);
542    const UnicodeString* shortWeekdayNames =
543        dateFormatSym.getWeekdays(count, DateFormatSymbols::FORMAT, DateFormatSymbols::ABBREVIATED);
544    setStringArrayField(env, localeData, "shortWeekdayNames", shortWeekdayNames, count);
545    const UnicodeString* tinyWeekdayNames =
546        dateFormatSym.getWeekdays(count, DateFormatSymbols::FORMAT, DateFormatSymbols::NARROW);
547    setStringArrayField(env, localeData, "tinyWeekdayNames", tinyWeekdayNames, count);
548
549    const UnicodeString* longStandAloneMonthNames =
550        dateFormatSym.getMonths(count, DateFormatSymbols::STANDALONE, DateFormatSymbols::WIDE);
551    setStringArrayField(env, localeData, "longStandAloneMonthNames", longStandAloneMonthNames, count);
552    const UnicodeString* shortStandAloneMonthNames =
553        dateFormatSym.getMonths(count, DateFormatSymbols::STANDALONE, DateFormatSymbols::ABBREVIATED);
554    setStringArrayField(env, localeData, "shortStandAloneMonthNames", shortStandAloneMonthNames, count);
555    const UnicodeString* tinyStandAloneMonthNames =
556        dateFormatSym.getMonths(count, DateFormatSymbols::STANDALONE, DateFormatSymbols::NARROW);
557    setStringArrayField(env, localeData, "tinyStandAloneMonthNames", tinyStandAloneMonthNames, count);
558    const UnicodeString* longStandAloneWeekdayNames =
559        dateFormatSym.getWeekdays(count, DateFormatSymbols::STANDALONE, DateFormatSymbols::WIDE);
560    setStringArrayField(env, localeData, "longStandAloneWeekdayNames", longStandAloneWeekdayNames, count);
561    const UnicodeString* shortStandAloneWeekdayNames =
562        dateFormatSym.getWeekdays(count, DateFormatSymbols::STANDALONE, DateFormatSymbols::ABBREVIATED);
563    setStringArrayField(env, localeData, "shortStandAloneWeekdayNames", shortStandAloneWeekdayNames, count);
564    const UnicodeString* tinyStandAloneWeekdayNames =
565        dateFormatSym.getWeekdays(count, DateFormatSymbols::STANDALONE, DateFormatSymbols::NARROW);
566    setStringArrayField(env, localeData, "tinyStandAloneWeekdayNames", tinyStandAloneWeekdayNames, count);
567
568    status = U_ZERO_ERROR;
569
570    // For numberPatterns and symbols.
571    setNumberPatterns(env, localeData, locale);
572    setDecimalFormatSymbolsData(env, localeData, locale);
573
574    jstring countryCode = env->NewStringUTF(Locale::createFromName(localeName.c_str()).getCountry());
575    jstring internationalCurrencySymbol = ICU_getCurrencyCode(env, NULL, countryCode);
576    env->DeleteLocalRef(countryCode);
577    countryCode = NULL;
578
579    jstring currencySymbol = NULL;
580    if (internationalCurrencySymbol != NULL) {
581        currencySymbol = ICU_getCurrencySymbol(env, NULL, javaLocaleName, internationalCurrencySymbol);
582    } else {
583        internationalCurrencySymbol = env->NewStringUTF("XXX");
584    }
585    if (currencySymbol == NULL) {
586        // This is the UTF-8 encoding of U+00A4 (CURRENCY SIGN).
587        currencySymbol = env->NewStringUTF("\xc2\xa4");
588    }
589    setStringField(env, localeData, "currencySymbol", currencySymbol);
590    setStringField(env, localeData, "internationalCurrencySymbol", internationalCurrencySymbol);
591
592    return JNI_TRUE;
593}
594
595static jstring ICU_toLowerCase(JNIEnv* env, jclass, jstring javaString, jstring localeName) {
596  ScopedJavaUnicodeString scopedString(env, javaString);
597  if (!scopedString.valid()) {
598    return NULL;
599  }
600  UnicodeString& s(scopedString.unicodeString());
601  UnicodeString original(s);
602  s.toLower(getLocale(env, localeName));
603  return s == original ? javaString : env->NewString(s.getBuffer(), s.length());
604}
605
606static jstring ICU_toUpperCase(JNIEnv* env, jclass, jstring javaString, jstring localeName) {
607  ScopedJavaUnicodeString scopedString(env, javaString);
608  if (!scopedString.valid()) {
609    return NULL;
610  }
611  UnicodeString& s(scopedString.unicodeString());
612  UnicodeString original(s);
613  s.toUpper(getLocale(env, localeName));
614  return s == original ? javaString : env->NewString(s.getBuffer(), s.length());
615}
616
617static jstring versionString(JNIEnv* env, const UVersionInfo& version) {
618    char versionString[U_MAX_VERSION_STRING_LENGTH];
619    u_versionToString(const_cast<UVersionInfo&>(version), &versionString[0]);
620    return env->NewStringUTF(versionString);
621}
622
623static jstring ICU_getCldrVersion(JNIEnv* env, jclass) {
624  UErrorCode status = U_ZERO_ERROR;
625  UVersionInfo cldrVersion;
626  ulocdata_getCLDRVersion(cldrVersion, &status);
627  return versionString(env, cldrVersion);
628}
629
630static jstring ICU_getIcuVersion(JNIEnv* env, jclass) {
631    UVersionInfo icuVersion;
632    u_getVersion(icuVersion);
633    return versionString(env, icuVersion);
634}
635
636static jstring ICU_getUnicodeVersion(JNIEnv* env, jclass) {
637    UVersionInfo unicodeVersion;
638    u_getUnicodeVersion(unicodeVersion);
639    return versionString(env, unicodeVersion);
640}
641
642static jobject ICU_getAvailableCurrencyCodes(JNIEnv* env, jclass) {
643  UErrorCode status = U_ZERO_ERROR;
644  UStringEnumeration e(ucurr_openISOCurrencies(UCURR_COMMON|UCURR_NON_DEPRECATED, &status));
645  return fromStringEnumeration(env, status, "ucurr_openISOCurrencies", &e);
646}
647
648static jstring ICU_getBestDateTimePattern(JNIEnv* env, jclass, jstring javaSkeleton, jstring javaLocaleName) {
649  Locale locale = getLocale(env, javaLocaleName);
650  UErrorCode status = U_ZERO_ERROR;
651  DateTimePatternGenerator* generator = DateTimePatternGenerator::createInstance(locale, status);
652  if (maybeThrowIcuException(env, "DateTimePatternGenerator::createInstance", status)) {
653    return NULL;
654  }
655
656  ScopedJavaUnicodeString skeletonHolder(env, javaSkeleton);
657  if (!skeletonHolder.valid()) {
658    return NULL;
659  }
660  UnicodeString result(generator->getBestPattern(skeletonHolder.unicodeString(), status));
661  if (maybeThrowIcuException(env, "DateTimePatternGenerator::getBestPattern", status)) {
662    return NULL;
663  }
664
665  return env->NewString(result.getBuffer(), result.length());
666}
667
668static JNINativeMethod gMethods[] = {
669    NATIVE_METHOD(ICU, addLikelySubtags, "(Ljava/lang/String;)Ljava/lang/String;"),
670    NATIVE_METHOD(ICU, getAvailableBreakIteratorLocalesNative, "()[Ljava/lang/String;"),
671    NATIVE_METHOD(ICU, getAvailableCalendarLocalesNative, "()[Ljava/lang/String;"),
672    NATIVE_METHOD(ICU, getAvailableCollatorLocalesNative, "()[Ljava/lang/String;"),
673    NATIVE_METHOD(ICU, getAvailableCurrencyCodes, "()[Ljava/lang/String;"),
674    NATIVE_METHOD(ICU, getAvailableDateFormatLocalesNative, "()[Ljava/lang/String;"),
675    NATIVE_METHOD(ICU, getAvailableLocalesNative, "()[Ljava/lang/String;"),
676    NATIVE_METHOD(ICU, getAvailableNumberFormatLocalesNative, "()[Ljava/lang/String;"),
677    NATIVE_METHOD(ICU, getBestDateTimePattern, "(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;"),
678    NATIVE_METHOD(ICU, getCldrVersion, "()Ljava/lang/String;"),
679    NATIVE_METHOD(ICU, getCurrencyCode, "(Ljava/lang/String;)Ljava/lang/String;"),
680    NATIVE_METHOD(ICU, getCurrencyDisplayName, "(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;"),
681    NATIVE_METHOD(ICU, getCurrencyFractionDigits, "(Ljava/lang/String;)I"),
682    NATIVE_METHOD(ICU, getCurrencySymbol, "(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;"),
683    NATIVE_METHOD(ICU, getDisplayCountryNative, "(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;"),
684    NATIVE_METHOD(ICU, getDisplayLanguageNative, "(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;"),
685    NATIVE_METHOD(ICU, getDisplayVariantNative, "(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;"),
686    NATIVE_METHOD(ICU, getISO3CountryNative, "(Ljava/lang/String;)Ljava/lang/String;"),
687    NATIVE_METHOD(ICU, getISO3LanguageNative, "(Ljava/lang/String;)Ljava/lang/String;"),
688    NATIVE_METHOD(ICU, getISOCountriesNative, "()[Ljava/lang/String;"),
689    NATIVE_METHOD(ICU, getISOLanguagesNative, "()[Ljava/lang/String;"),
690    NATIVE_METHOD(ICU, getIcuVersion, "()Ljava/lang/String;"),
691    NATIVE_METHOD(ICU, getScript, "(Ljava/lang/String;)Ljava/lang/String;"),
692    NATIVE_METHOD(ICU, getUnicodeVersion, "()Ljava/lang/String;"),
693    NATIVE_METHOD(ICU, initLocaleDataImpl, "(Ljava/lang/String;Llibcore/icu/LocaleData;)Z"),
694    NATIVE_METHOD(ICU, toLowerCase, "(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;"),
695    NATIVE_METHOD(ICU, toUpperCase, "(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;"),
696};
697void register_libcore_icu_ICU(JNIEnv* env) {
698    std::string path;
699    path = u_getDataDirectory();
700    path += "/";
701    path += U_ICUDATA_NAME;
702    path += ".dat";
703
704    #define FAIL_WITH_STRERROR(s) \
705        ALOGE("Couldn't " s " '%s': %s", path.c_str(), strerror(errno)); \
706        abort();
707    #define MAYBE_FAIL_WITH_ICU_ERROR(s) \
708        if (status != U_ZERO_ERROR) {\
709            ALOGE("Couldn't initialize ICU (" s "): %s (%s)", u_errorName(status), path.c_str()); \
710            abort(); \
711        }
712
713    // Open the file and get its length.
714    ScopedFd fd(open(path.c_str(), O_RDONLY));
715    if (fd.get() == -1) {
716        FAIL_WITH_STRERROR("open");
717    }
718    struct stat sb;
719    if (fstat(fd.get(), &sb) == -1) {
720        FAIL_WITH_STRERROR("stat");
721    }
722
723    // Map it.
724    void* data = mmap(NULL, sb.st_size, PROT_READ, MAP_SHARED, fd.get(), 0);
725    if (data == MAP_FAILED) {
726        FAIL_WITH_STRERROR("mmap");
727    }
728
729    // Tell the kernel that accesses are likely to be random rather than sequential.
730    if (madvise(data, sb.st_size, MADV_RANDOM) == -1) {
731        FAIL_WITH_STRERROR("madvise(MADV_RANDOM)");
732    }
733
734    // Tell ICU to use our memory-mapped data.
735    UErrorCode status = U_ZERO_ERROR;
736    udata_setCommonData(data, &status);
737    MAYBE_FAIL_WITH_ICU_ERROR("udata_setCommonData");
738    // Tell ICU it can *only* use our memory-mapped data.
739    udata_setFileAccess(UDATA_NO_FILES, &status);
740    MAYBE_FAIL_WITH_ICU_ERROR("udata_setFileAccess");
741
742    // Failures to find the ICU data tend to be somewhat obscure because ICU loads its data on first
743    // use, which can be anywhere. Force initialization up front so we can report a nice clear error
744    // and bail.
745    u_init(&status);
746    MAYBE_FAIL_WITH_ICU_ERROR("u_init");
747    jniRegisterNativeMethods(env, "libcore/icu/ICU", gMethods, NELEM(gMethods));
748}
749