| // © 2016 and later: Unicode, Inc. and others. |
| // License & terms of use: http://www.unicode.org/copyright.html |
| /* |
| ******************************************************************************* |
| * Copyright (C) 2007-2014, International Business Machines Corporation and |
| * others. All Rights Reserved. |
| ******************************************************************************* |
| */ |
| |
| #include "unicode/utypes.h" |
| |
| #if !UCONFIG_NO_FORMATTING |
| |
| #include "zonemeta.h" |
| |
| #include "unicode/timezone.h" |
| #include "unicode/ustring.h" |
| #include "unicode/putil.h" |
| #include "unicode/simpletz.h" |
| #include "unicode/strenum.h" |
| #include "umutex.h" |
| #include "uvector.h" |
| #include "cmemory.h" |
| #include "gregoimp.h" |
| #include "cstring.h" |
| #include "ucln_in.h" |
| #include "uassert.h" |
| #include "uresimp.h" |
| #include "uhash.h" |
| #include "olsontz.h" |
| #include "uinvchar.h" |
| |
| static UMutex gZoneMetaLock = U_MUTEX_INITIALIZER; |
| |
| // CLDR Canonical ID mapping table |
| static UHashtable *gCanonicalIDCache = NULL; |
| static icu::UInitOnce gCanonicalIDCacheInitOnce = U_INITONCE_INITIALIZER; |
| |
| // Metazone mapping table |
| static UHashtable *gOlsonToMeta = NULL; |
| static icu::UInitOnce gOlsonToMetaInitOnce = U_INITONCE_INITIALIZER; |
| |
| // Available metazone IDs vector and table |
| static icu::UVector *gMetaZoneIDs = NULL; |
| static UHashtable *gMetaZoneIDTable = NULL; |
| static icu::UInitOnce gMetaZoneIDsInitOnce = U_INITONCE_INITIALIZER; |
| |
| // Country info vectors |
| static icu::UVector *gSingleZoneCountries = NULL; |
| static icu::UVector *gMultiZonesCountries = NULL; |
| static icu::UInitOnce gCountryInfoVectorsInitOnce = U_INITONCE_INITIALIZER; |
| |
| U_CDECL_BEGIN |
| |
| /** |
| * Cleanup callback func |
| */ |
| static UBool U_CALLCONV zoneMeta_cleanup(void) |
| { |
| if (gCanonicalIDCache != NULL) { |
| uhash_close(gCanonicalIDCache); |
| gCanonicalIDCache = NULL; |
| } |
| gCanonicalIDCacheInitOnce.reset(); |
| |
| if (gOlsonToMeta != NULL) { |
| uhash_close(gOlsonToMeta); |
| gOlsonToMeta = NULL; |
| } |
| gOlsonToMetaInitOnce.reset(); |
| |
| if (gMetaZoneIDTable != NULL) { |
| uhash_close(gMetaZoneIDTable); |
| gMetaZoneIDTable = NULL; |
| } |
| // delete after closing gMetaZoneIDTable, because it holds |
| // value objects held by the hashtable |
| delete gMetaZoneIDs; |
| gMetaZoneIDs = NULL; |
| gMetaZoneIDsInitOnce.reset(); |
| |
| delete gSingleZoneCountries; |
| gSingleZoneCountries = NULL; |
| delete gMultiZonesCountries; |
| gMultiZonesCountries = NULL; |
| gCountryInfoVectorsInitOnce.reset(); |
| |
| return TRUE; |
| } |
| |
| /** |
| * Deleter for UChar* string |
| */ |
| static void U_CALLCONV |
| deleteUCharString(void *obj) { |
| UChar *entry = (UChar*)obj; |
| uprv_free(entry); |
| } |
| |
| /** |
| * Deleter for UVector |
| */ |
| static void U_CALLCONV |
| deleteUVector(void *obj) { |
| delete (icu::UVector*) obj; |
| } |
| |
| /** |
| * Deleter for OlsonToMetaMappingEntry |
| */ |
| static void U_CALLCONV |
| deleteOlsonToMetaMappingEntry(void *obj) { |
| icu::OlsonToMetaMappingEntry *entry = (icu::OlsonToMetaMappingEntry*)obj; |
| uprv_free(entry); |
| } |
| |
| U_CDECL_END |
| |
| U_NAMESPACE_BEGIN |
| |
| #define ZID_KEY_MAX 128 |
| |
| static const char gMetaZones[] = "metaZones"; |
| static const char gMetazoneInfo[] = "metazoneInfo"; |
| static const char gMapTimezonesTag[] = "mapTimezones"; |
| |
| static const char gKeyTypeData[] = "keyTypeData"; |
| static const char gTypeAliasTag[] = "typeAlias"; |
| static const char gTypeMapTag[] = "typeMap"; |
| static const char gTimezoneTag[] = "timezone"; |
| |
| static const char gPrimaryZonesTag[] = "primaryZones"; |
| |
| static const char gWorldTag[] = "001"; |
| |
| static const UChar gWorld[] = {0x30, 0x30, 0x31, 0x00}; // "001" |
| |
| static const UChar gDefaultFrom[] = {0x31, 0x39, 0x37, 0x30, 0x2D, 0x30, 0x31, 0x2D, 0x30, 0x31, |
| 0x20, 0x30, 0x30, 0x3A, 0x30, 0x30, 0x00}; // "1970-01-01 00:00" |
| static const UChar gDefaultTo[] = {0x39, 0x39, 0x39, 0x39, 0x2D, 0x31, 0x32, 0x2D, 0x33, 0x31, |
| 0x20, 0x32, 0x33, 0x3A, 0x35, 0x39, 0x00}; // "9999-12-31 23:59" |
| |
| static const UChar gCustomTzPrefix[] = {0x47, 0x4D, 0x54, 0}; // "GMT" |
| |
| #define ASCII_DIGIT(c) (((c)>=0x30 && (c)<=0x39) ? (c)-0x30 : -1) |
| |
| /* |
| * Convert a date string used by metazone mappings to UDate. |
| * The format used by CLDR metazone mapping is "yyyy-MM-dd HH:mm". |
| */ |
| static UDate |
| parseDate (const UChar *text, UErrorCode &status) { |
| if (U_FAILURE(status)) { |
| return 0; |
| } |
| int32_t len = u_strlen(text); |
| if (len != 16 && len != 10) { |
| // It must be yyyy-MM-dd HH:mm (length 16) or yyyy-MM-dd (length 10) |
| status = U_INVALID_FORMAT_ERROR; |
| return 0; |
| } |
| |
| int32_t year = 0, month = 0, day = 0, hour = 0, min = 0, n; |
| int32_t idx; |
| |
| // "yyyy" (0 - 3) |
| for (idx = 0; idx <= 3 && U_SUCCESS(status); idx++) { |
| n = ASCII_DIGIT((int32_t)text[idx]); |
| if (n >= 0) { |
| year = 10*year + n; |
| } else { |
| status = U_INVALID_FORMAT_ERROR; |
| } |
| } |
| // "MM" (5 - 6) |
| for (idx = 5; idx <= 6 && U_SUCCESS(status); idx++) { |
| n = ASCII_DIGIT((int32_t)text[idx]); |
| if (n >= 0) { |
| month = 10*month + n; |
| } else { |
| status = U_INVALID_FORMAT_ERROR; |
| } |
| } |
| // "dd" (8 - 9) |
| for (idx = 8; idx <= 9 && U_SUCCESS(status); idx++) { |
| n = ASCII_DIGIT((int32_t)text[idx]); |
| if (n >= 0) { |
| day = 10*day + n; |
| } else { |
| status = U_INVALID_FORMAT_ERROR; |
| } |
| } |
| if (len == 16) { |
| // "HH" (11 - 12) |
| for (idx = 11; idx <= 12 && U_SUCCESS(status); idx++) { |
| n = ASCII_DIGIT((int32_t)text[idx]); |
| if (n >= 0) { |
| hour = 10*hour + n; |
| } else { |
| status = U_INVALID_FORMAT_ERROR; |
| } |
| } |
| // "mm" (14 - 15) |
| for (idx = 14; idx <= 15 && U_SUCCESS(status); idx++) { |
| n = ASCII_DIGIT((int32_t)text[idx]); |
| if (n >= 0) { |
| min = 10*min + n; |
| } else { |
| status = U_INVALID_FORMAT_ERROR; |
| } |
| } |
| } |
| |
| if (U_SUCCESS(status)) { |
| UDate date = Grego::fieldsToDay(year, month - 1, day) * U_MILLIS_PER_DAY |
| + hour * U_MILLIS_PER_HOUR + min * U_MILLIS_PER_MINUTE; |
| return date; |
| } |
| return 0; |
| } |
| |
| static void U_CALLCONV initCanonicalIDCache(UErrorCode &status) { |
| gCanonicalIDCache = uhash_open(uhash_hashUChars, uhash_compareUChars, NULL, &status); |
| if (gCanonicalIDCache == NULL) { |
| status = U_MEMORY_ALLOCATION_ERROR; |
| } |
| if (U_FAILURE(status)) { |
| gCanonicalIDCache = NULL; |
| } |
| // No key/value deleters - keys/values are from a resource bundle |
| ucln_i18n_registerCleanup(UCLN_I18N_ZONEMETA, zoneMeta_cleanup); |
| } |
| |
| |
| const UChar* U_EXPORT2 |
| ZoneMeta::getCanonicalCLDRID(const UnicodeString &tzid, UErrorCode& status) { |
| if (U_FAILURE(status)) { |
| return NULL; |
| } |
| |
| if (tzid.isBogus() || tzid.length() > ZID_KEY_MAX) { |
| status = U_ILLEGAL_ARGUMENT_ERROR; |
| return NULL; |
| } |
| |
| // Checking the cached results |
| umtx_initOnce(gCanonicalIDCacheInitOnce, &initCanonicalIDCache, status); |
| if (U_FAILURE(status)) { |
| return NULL; |
| } |
| |
| const UChar *canonicalID = NULL; |
| |
| UErrorCode tmpStatus = U_ZERO_ERROR; |
| UChar utzid[ZID_KEY_MAX + 1]; |
| tzid.extract(utzid, ZID_KEY_MAX + 1, tmpStatus); |
| U_ASSERT(tmpStatus == U_ZERO_ERROR); // we checked the length of tzid already |
| |
| if (!uprv_isInvariantUString(utzid, -1)) { |
| // All of known tz IDs are only containing ASCII invariant characters. |
| status = U_ILLEGAL_ARGUMENT_ERROR; |
| return NULL; |
| } |
| |
| // Check if it was already cached |
| umtx_lock(&gZoneMetaLock); |
| { |
| canonicalID = (const UChar *)uhash_get(gCanonicalIDCache, utzid); |
| } |
| umtx_unlock(&gZoneMetaLock); |
| |
| if (canonicalID != NULL) { |
| return canonicalID; |
| } |
| |
| // If not, resolve CLDR canonical ID with resource data |
| UBool isInputCanonical = FALSE; |
| char id[ZID_KEY_MAX + 1]; |
| tzid.extract(0, 0x7fffffff, id, UPRV_LENGTHOF(id), US_INV); |
| |
| // replace '/' with ':' |
| char *p = id; |
| while (*p++) { |
| if (*p == '/') { |
| *p = ':'; |
| } |
| } |
| |
| UResourceBundle *top = ures_openDirect(NULL, gKeyTypeData, &tmpStatus); |
| UResourceBundle *rb = ures_getByKey(top, gTypeMapTag, NULL, &tmpStatus); |
| ures_getByKey(rb, gTimezoneTag, rb, &tmpStatus); |
| ures_getByKey(rb, id, rb, &tmpStatus); |
| if (U_SUCCESS(tmpStatus)) { |
| // type entry (canonical) found |
| // the input is the canonical ID. resolve to const UChar* |
| canonicalID = TimeZone::findID(tzid); |
| isInputCanonical = TRUE; |
| } |
| |
| if (canonicalID == NULL) { |
| // If a map element not found, then look for an alias |
| tmpStatus = U_ZERO_ERROR; |
| ures_getByKey(top, gTypeAliasTag, rb, &tmpStatus); |
| ures_getByKey(rb, gTimezoneTag, rb, &tmpStatus); |
| const UChar *canonical = ures_getStringByKey(rb,id,NULL,&tmpStatus); |
| if (U_SUCCESS(tmpStatus)) { |
| // canonical map found |
| canonicalID = canonical; |
| } |
| |
| if (canonicalID == NULL) { |
| // Dereference the input ID using the tz data |
| const UChar *derefer = TimeZone::dereferOlsonLink(tzid); |
| if (derefer == NULL) { |
| status = U_ILLEGAL_ARGUMENT_ERROR; |
| } else { |
| int32_t len = u_strlen(derefer); |
| u_UCharsToChars(derefer,id,len); |
| id[len] = (char) 0; // Make sure it is null terminated. |
| |
| // replace '/' with ':' |
| char *p = id; |
| while (*p++) { |
| if (*p == '/') { |
| *p = ':'; |
| } |
| } |
| |
| // If a dereference turned something up then look for an alias. |
| // rb still points to the alias table, so we don't have to go looking |
| // for it. |
| tmpStatus = U_ZERO_ERROR; |
| canonical = ures_getStringByKey(rb,id,NULL,&tmpStatus); |
| if (U_SUCCESS(tmpStatus)) { |
| // canonical map for the dereferenced ID found |
| canonicalID = canonical; |
| } else { |
| canonicalID = derefer; |
| isInputCanonical = TRUE; |
| } |
| } |
| } |
| } |
| ures_close(rb); |
| ures_close(top); |
| |
| if (U_SUCCESS(status)) { |
| U_ASSERT(canonicalID != NULL); // canocanilD must be non-NULL here |
| |
| // Put the resolved canonical ID to the cache |
| umtx_lock(&gZoneMetaLock); |
| { |
| const UChar* idInCache = (const UChar *)uhash_get(gCanonicalIDCache, utzid); |
| if (idInCache == NULL) { |
| const UChar* key = ZoneMeta::findTimeZoneID(tzid); |
| U_ASSERT(key != NULL); |
| if (key != NULL) { |
| idInCache = (const UChar *)uhash_put(gCanonicalIDCache, (void *)key, (void *)canonicalID, &status); |
| U_ASSERT(idInCache == NULL); |
| } |
| } |
| if (U_SUCCESS(status) && isInputCanonical) { |
| // Also put canonical ID itself into the cache if not exist |
| const UChar *canonicalInCache = (const UChar*)uhash_get(gCanonicalIDCache, canonicalID); |
| if (canonicalInCache == NULL) { |
| canonicalInCache = (const UChar *)uhash_put(gCanonicalIDCache, (void *)canonicalID, (void *)canonicalID, &status); |
| U_ASSERT(canonicalInCache == NULL); |
| } |
| } |
| } |
| umtx_unlock(&gZoneMetaLock); |
| } |
| |
| return canonicalID; |
| } |
| |
| UnicodeString& U_EXPORT2 |
| ZoneMeta::getCanonicalCLDRID(const UnicodeString &tzid, UnicodeString &systemID, UErrorCode& status) { |
| const UChar *canonicalID = getCanonicalCLDRID(tzid, status); |
| if (U_FAILURE(status) || canonicalID == NULL) { |
| systemID.setToBogus(); |
| return systemID; |
| } |
| systemID.setTo(TRUE, canonicalID, -1); |
| return systemID; |
| } |
| |
| const UChar* U_EXPORT2 |
| ZoneMeta::getCanonicalCLDRID(const TimeZone& tz) { |
| if (dynamic_cast<const OlsonTimeZone *>(&tz) != NULL) { |
| // short cut for OlsonTimeZone |
| const OlsonTimeZone *otz = (const OlsonTimeZone*)&tz; |
| return otz->getCanonicalID(); |
| } |
| UErrorCode status = U_ZERO_ERROR; |
| UnicodeString tzID; |
| return getCanonicalCLDRID(tz.getID(tzID), status); |
| } |
| |
| static void U_CALLCONV countryInfoVectorsInit(UErrorCode &status) { |
| // Create empty vectors |
| // No deleters for these UVectors, it's a reference to a resource bundle string. |
| gSingleZoneCountries = new UVector(NULL, uhash_compareUChars, status); |
| if (gSingleZoneCountries == NULL) { |
| status = U_MEMORY_ALLOCATION_ERROR; |
| } |
| gMultiZonesCountries = new UVector(NULL, uhash_compareUChars, status); |
| if (gMultiZonesCountries == NULL) { |
| status = U_MEMORY_ALLOCATION_ERROR; |
| } |
| |
| if (U_FAILURE(status)) { |
| delete gSingleZoneCountries; |
| delete gMultiZonesCountries; |
| gSingleZoneCountries = NULL; |
| gMultiZonesCountries = NULL; |
| } |
| ucln_i18n_registerCleanup(UCLN_I18N_ZONEMETA, zoneMeta_cleanup); |
| } |
| |
| |
| UnicodeString& U_EXPORT2 |
| ZoneMeta::getCanonicalCountry(const UnicodeString &tzid, UnicodeString &country, UBool *isPrimary /* = NULL */) { |
| if (isPrimary != NULL) { |
| *isPrimary = FALSE; |
| } |
| |
| const UChar *region = TimeZone::getRegion(tzid); |
| if (region != NULL && u_strcmp(gWorld, region) != 0) { |
| country.setTo(region, -1); |
| } else { |
| country.setToBogus(); |
| return country; |
| } |
| |
| if (isPrimary != NULL) { |
| char regionBuf[] = {0, 0, 0}; |
| |
| // Checking the cached results |
| UErrorCode status = U_ZERO_ERROR; |
| umtx_initOnce(gCountryInfoVectorsInitOnce, &countryInfoVectorsInit, status); |
| if (U_FAILURE(status)) { |
| return country; |
| } |
| |
| // Check if it was already cached |
| UBool cached = FALSE; |
| UBool singleZone = FALSE; |
| umtx_lock(&gZoneMetaLock); |
| { |
| singleZone = cached = gSingleZoneCountries->contains((void*)region); |
| if (!cached) { |
| cached = gMultiZonesCountries->contains((void*)region); |
| } |
| } |
| umtx_unlock(&gZoneMetaLock); |
| |
| if (!cached) { |
| // We need to go through all zones associated with the region. |
| // This is relatively heavy operation. |
| |
| U_ASSERT(u_strlen(region) == 2); |
| |
| u_UCharsToChars(region, regionBuf, 2); |
| |
| StringEnumeration *ids = TimeZone::createTimeZoneIDEnumeration(UCAL_ZONE_TYPE_CANONICAL_LOCATION, regionBuf, NULL, status); |
| int32_t idsLen = ids->count(status); |
| if (U_SUCCESS(status) && idsLen == 1) { |
| // only the single zone is available for the region |
| singleZone = TRUE; |
| } |
| delete ids; |
| |
| // Cache the result |
| umtx_lock(&gZoneMetaLock); |
| { |
| UErrorCode ec = U_ZERO_ERROR; |
| if (singleZone) { |
| if (!gSingleZoneCountries->contains((void*)region)) { |
| gSingleZoneCountries->addElement((void*)region, ec); |
| } |
| } else { |
| if (!gMultiZonesCountries->contains((void*)region)) { |
| gMultiZonesCountries->addElement((void*)region, ec); |
| } |
| } |
| } |
| umtx_unlock(&gZoneMetaLock); |
| } |
| |
| if (singleZone) { |
| *isPrimary = TRUE; |
| } else { |
| // Note: We may cache the primary zone map in future. |
| |
| // Even a country has multiple zones, one of them might be |
| // dominant and treated as a primary zone |
| int32_t idLen = 0; |
| if (regionBuf[0] == 0) { |
| u_UCharsToChars(region, regionBuf, 2); |
| } |
| |
| UResourceBundle *rb = ures_openDirect(NULL, gMetaZones, &status); |
| ures_getByKey(rb, gPrimaryZonesTag, rb, &status); |
| const UChar *primaryZone = ures_getStringByKey(rb, regionBuf, &idLen, &status); |
| if (U_SUCCESS(status)) { |
| if (tzid.compare(primaryZone, idLen) == 0) { |
| *isPrimary = TRUE; |
| } else { |
| // The given ID might not be a canonical ID |
| UnicodeString canonicalID; |
| TimeZone::getCanonicalID(tzid, canonicalID, status); |
| if (U_SUCCESS(status) && canonicalID.compare(primaryZone, idLen) == 0) { |
| *isPrimary = TRUE; |
| } |
| } |
| } |
| ures_close(rb); |
| } |
| } |
| |
| return country; |
| } |
| |
| UnicodeString& U_EXPORT2 |
| ZoneMeta::getMetazoneID(const UnicodeString &tzid, UDate date, UnicodeString &result) { |
| UBool isSet = FALSE; |
| const UVector *mappings = getMetazoneMappings(tzid); |
| if (mappings != NULL) { |
| for (int32_t i = 0; i < mappings->size(); i++) { |
| OlsonToMetaMappingEntry *mzm = (OlsonToMetaMappingEntry*)mappings->elementAt(i); |
| if (mzm->from <= date && mzm->to > date) { |
| result.setTo(mzm->mzid, -1); |
| isSet = TRUE; |
| break; |
| } |
| } |
| } |
| if (!isSet) { |
| result.setToBogus(); |
| } |
| return result; |
| } |
| |
| static void U_CALLCONV olsonToMetaInit(UErrorCode &status) { |
| U_ASSERT(gOlsonToMeta == NULL); |
| ucln_i18n_registerCleanup(UCLN_I18N_ZONEMETA, zoneMeta_cleanup); |
| gOlsonToMeta = uhash_open(uhash_hashUChars, uhash_compareUChars, NULL, &status); |
| if (U_FAILURE(status)) { |
| gOlsonToMeta = NULL; |
| } else { |
| uhash_setKeyDeleter(gOlsonToMeta, deleteUCharString); |
| uhash_setValueDeleter(gOlsonToMeta, deleteUVector); |
| } |
| } |
| |
| |
| const UVector* U_EXPORT2 |
| ZoneMeta::getMetazoneMappings(const UnicodeString &tzid) { |
| UErrorCode status = U_ZERO_ERROR; |
| UChar tzidUChars[ZID_KEY_MAX + 1]; |
| tzid.extract(tzidUChars, ZID_KEY_MAX + 1, status); |
| if (U_FAILURE(status) || status == U_STRING_NOT_TERMINATED_WARNING) { |
| return NULL; |
| } |
| |
| umtx_initOnce(gOlsonToMetaInitOnce, &olsonToMetaInit, status); |
| if (U_FAILURE(status)) { |
| return NULL; |
| } |
| |
| // get the mapping from cache |
| const UVector *result = NULL; |
| |
| umtx_lock(&gZoneMetaLock); |
| { |
| result = (UVector*) uhash_get(gOlsonToMeta, tzidUChars); |
| } |
| umtx_unlock(&gZoneMetaLock); |
| |
| if (result != NULL) { |
| return result; |
| } |
| |
| // miss the cache - create new one |
| UVector *tmpResult = createMetazoneMappings(tzid); |
| if (tmpResult == NULL) { |
| // not available |
| return NULL; |
| } |
| |
| // put the new one into the cache |
| umtx_lock(&gZoneMetaLock); |
| { |
| // make sure it's already created |
| result = (UVector*) uhash_get(gOlsonToMeta, tzidUChars); |
| if (result == NULL) { |
| // add the one just created |
| int32_t tzidLen = tzid.length() + 1; |
| UChar *key = (UChar*)uprv_malloc(tzidLen * sizeof(UChar)); |
| if (key == NULL) { |
| // memory allocation error.. just return NULL |
| result = NULL; |
| delete tmpResult; |
| } else { |
| tzid.extract(key, tzidLen, status); |
| uhash_put(gOlsonToMeta, key, tmpResult, &status); |
| if (U_FAILURE(status)) { |
| // delete the mapping |
| result = NULL; |
| delete tmpResult; |
| } else { |
| result = tmpResult; |
| } |
| } |
| } else { |
| // another thread already put the one |
| delete tmpResult; |
| } |
| } |
| umtx_unlock(&gZoneMetaLock); |
| |
| return result; |
| } |
| |
| UVector* |
| ZoneMeta::createMetazoneMappings(const UnicodeString &tzid) { |
| UVector *mzMappings = NULL; |
| UErrorCode status = U_ZERO_ERROR; |
| |
| UnicodeString canonicalID; |
| UResourceBundle *rb = ures_openDirect(NULL, gMetaZones, &status); |
| ures_getByKey(rb, gMetazoneInfo, rb, &status); |
| getCanonicalCLDRID(tzid, canonicalID, status); |
| |
| if (U_SUCCESS(status)) { |
| char tzKey[ZID_KEY_MAX + 1]; |
| int32_t tzKeyLen = canonicalID.extract(0, canonicalID.length(), tzKey, sizeof(tzKey), US_INV); |
| tzKey[tzKeyLen] = 0; |
| |
| // tzid keys are using ':' as separators |
| char *p = tzKey; |
| while (*p) { |
| if (*p == '/') { |
| *p = ':'; |
| } |
| p++; |
| } |
| |
| ures_getByKey(rb, tzKey, rb, &status); |
| |
| if (U_SUCCESS(status)) { |
| UResourceBundle *mz = NULL; |
| while (ures_hasNext(rb)) { |
| mz = ures_getNextResource(rb, mz, &status); |
| |
| const UChar *mz_name = ures_getStringByIndex(mz, 0, NULL, &status); |
| const UChar *mz_from = gDefaultFrom; |
| const UChar *mz_to = gDefaultTo; |
| |
| if (ures_getSize(mz) == 3) { |
| mz_from = ures_getStringByIndex(mz, 1, NULL, &status); |
| mz_to = ures_getStringByIndex(mz, 2, NULL, &status); |
| } |
| |
| if(U_FAILURE(status)){ |
| status = U_ZERO_ERROR; |
| continue; |
| } |
| // We do not want to use SimpleDateformat to parse boundary dates, |
| // because this code could be triggered by the initialization code |
| // used by SimpleDateFormat. |
| UDate from = parseDate(mz_from, status); |
| UDate to = parseDate(mz_to, status); |
| if (U_FAILURE(status)) { |
| status = U_ZERO_ERROR; |
| continue; |
| } |
| |
| OlsonToMetaMappingEntry *entry = (OlsonToMetaMappingEntry*)uprv_malloc(sizeof(OlsonToMetaMappingEntry)); |
| if (entry == NULL) { |
| status = U_MEMORY_ALLOCATION_ERROR; |
| break; |
| } |
| entry->mzid = mz_name; |
| entry->from = from; |
| entry->to = to; |
| |
| if (mzMappings == NULL) { |
| mzMappings = new UVector(deleteOlsonToMetaMappingEntry, NULL, status); |
| if (U_FAILURE(status)) { |
| delete mzMappings; |
| mzMappings = NULL; |
| uprv_free(entry); |
| break; |
| } |
| } |
| |
| mzMappings->addElement(entry, status); |
| if (U_FAILURE(status)) { |
| break; |
| } |
| } |
| ures_close(mz); |
| if (U_FAILURE(status)) { |
| if (mzMappings != NULL) { |
| delete mzMappings; |
| mzMappings = NULL; |
| } |
| } |
| } |
| } |
| ures_close(rb); |
| return mzMappings; |
| } |
| |
| UnicodeString& U_EXPORT2 |
| ZoneMeta::getZoneIdByMetazone(const UnicodeString &mzid, const UnicodeString ®ion, UnicodeString &result) { |
| UErrorCode status = U_ZERO_ERROR; |
| const UChar *tzid = NULL; |
| int32_t tzidLen = 0; |
| char keyBuf[ZID_KEY_MAX + 1]; |
| int32_t keyLen = 0; |
| |
| if (mzid.isBogus() || mzid.length() > ZID_KEY_MAX) { |
| result.setToBogus(); |
| return result; |
| } |
| |
| keyLen = mzid.extract(0, mzid.length(), keyBuf, ZID_KEY_MAX + 1, US_INV); |
| keyBuf[keyLen] = 0; |
| |
| UResourceBundle *rb = ures_openDirect(NULL, gMetaZones, &status); |
| ures_getByKey(rb, gMapTimezonesTag, rb, &status); |
| ures_getByKey(rb, keyBuf, rb, &status); |
| |
| if (U_SUCCESS(status)) { |
| // check region mapping |
| if (region.length() == 2 || region.length() == 3) { |
| keyLen = region.extract(0, region.length(), keyBuf, ZID_KEY_MAX + 1, US_INV); |
| keyBuf[keyLen] = 0; |
| tzid = ures_getStringByKey(rb, keyBuf, &tzidLen, &status); |
| if (status == U_MISSING_RESOURCE_ERROR) { |
| status = U_ZERO_ERROR; |
| } |
| } |
| if (U_SUCCESS(status) && tzid == NULL) { |
| // try "001" |
| tzid = ures_getStringByKey(rb, gWorldTag, &tzidLen, &status); |
| } |
| } |
| ures_close(rb); |
| |
| if (tzid == NULL) { |
| result.setToBogus(); |
| } else { |
| result.setTo(tzid, tzidLen); |
| } |
| |
| return result; |
| } |
| |
| static void U_CALLCONV initAvailableMetaZoneIDs () { |
| U_ASSERT(gMetaZoneIDs == NULL); |
| U_ASSERT(gMetaZoneIDTable == NULL); |
| ucln_i18n_registerCleanup(UCLN_I18N_ZONEMETA, zoneMeta_cleanup); |
| |
| UErrorCode status = U_ZERO_ERROR; |
| gMetaZoneIDTable = uhash_open(uhash_hashUnicodeString, uhash_compareUnicodeString, NULL, &status); |
| if (U_FAILURE(status) || gMetaZoneIDTable == NULL) { |
| gMetaZoneIDTable = NULL; |
| return; |
| } |
| uhash_setKeyDeleter(gMetaZoneIDTable, uprv_deleteUObject); |
| // No valueDeleter, because the vector maintain the value objects |
| gMetaZoneIDs = new UVector(NULL, uhash_compareUChars, status); |
| if (U_FAILURE(status) || gMetaZoneIDs == NULL) { |
| gMetaZoneIDs = NULL; |
| uhash_close(gMetaZoneIDTable); |
| gMetaZoneIDTable = NULL; |
| return; |
| } |
| gMetaZoneIDs->setDeleter(uprv_free); |
| |
| UResourceBundle *rb = ures_openDirect(NULL, gMetaZones, &status); |
| UResourceBundle *bundle = ures_getByKey(rb, gMapTimezonesTag, NULL, &status); |
| UResourceBundle res; |
| ures_initStackObject(&res); |
| while (U_SUCCESS(status) && ures_hasNext(bundle)) { |
| ures_getNextResource(bundle, &res, &status); |
| if (U_FAILURE(status)) { |
| break; |
| } |
| const char *mzID = ures_getKey(&res); |
| int32_t len = static_cast<int32_t>(uprv_strlen(mzID)); |
| UChar *uMzID = (UChar*)uprv_malloc(sizeof(UChar) * (len + 1)); |
| if (uMzID == NULL) { |
| status = U_MEMORY_ALLOCATION_ERROR; |
| break; |
| } |
| u_charsToUChars(mzID, uMzID, len); |
| uMzID[len] = 0; |
| UnicodeString *usMzID = new UnicodeString(uMzID); |
| if (uhash_get(gMetaZoneIDTable, usMzID) == NULL) { |
| gMetaZoneIDs->addElement((void *)uMzID, status); |
| uhash_put(gMetaZoneIDTable, (void *)usMzID, (void *)uMzID, &status); |
| } else { |
| uprv_free(uMzID); |
| delete usMzID; |
| } |
| } |
| ures_close(&res); |
| ures_close(bundle); |
| ures_close(rb); |
| |
| if (U_FAILURE(status)) { |
| uhash_close(gMetaZoneIDTable); |
| delete gMetaZoneIDs; |
| gMetaZoneIDTable = NULL; |
| gMetaZoneIDs = NULL; |
| } |
| } |
| |
| const UVector* |
| ZoneMeta::getAvailableMetazoneIDs() { |
| umtx_initOnce(gMetaZoneIDsInitOnce, &initAvailableMetaZoneIDs); |
| return gMetaZoneIDs; |
| } |
| |
| const UChar* |
| ZoneMeta::findMetaZoneID(const UnicodeString& mzid) { |
| umtx_initOnce(gMetaZoneIDsInitOnce, &initAvailableMetaZoneIDs); |
| if (gMetaZoneIDTable == NULL) { |
| return NULL; |
| } |
| return (const UChar*)uhash_get(gMetaZoneIDTable, &mzid); |
| } |
| |
| const UChar* |
| ZoneMeta::findTimeZoneID(const UnicodeString& tzid) { |
| return TimeZone::findID(tzid); |
| } |
| |
| |
| TimeZone* |
| ZoneMeta::createCustomTimeZone(int32_t offset) { |
| UBool negative = FALSE; |
| int32_t tmp = offset; |
| if (offset < 0) { |
| negative = TRUE; |
| tmp = -offset; |
| } |
| int32_t hour, min, sec; |
| |
| tmp /= 1000; |
| sec = tmp % 60; |
| tmp /= 60; |
| min = tmp % 60; |
| hour = tmp / 60; |
| |
| UnicodeString zid; |
| formatCustomID(hour, min, sec, negative, zid); |
| return new SimpleTimeZone(offset, zid); |
| } |
| |
| UnicodeString& |
| ZoneMeta::formatCustomID(uint8_t hour, uint8_t min, uint8_t sec, UBool negative, UnicodeString& id) { |
| // Create normalized time zone ID - GMT[+|-]HH:mm[:ss] |
| id.setTo(gCustomTzPrefix, -1); |
| if (hour != 0 || min != 0) { |
| if (negative) { |
| id.append((UChar)0x2D); // '-' |
| } else { |
| id.append((UChar)0x2B); // '+' |
| } |
| // Always use US-ASCII digits |
| id.append((UChar)(0x30 + (hour%100)/10)); |
| id.append((UChar)(0x30 + (hour%10))); |
| id.append((UChar)0x3A); // ':' |
| id.append((UChar)(0x30 + (min%100)/10)); |
| id.append((UChar)(0x30 + (min%10))); |
| if (sec != 0) { |
| id.append((UChar)0x3A); // ':' |
| id.append((UChar)(0x30 + (sec%100)/10)); |
| id.append((UChar)(0x30 + (sec%10))); |
| } |
| } |
| return id; |
| } |
| |
| const UChar* |
| ZoneMeta::getShortID(const TimeZone& tz) { |
| const UChar* canonicalID = NULL; |
| if (dynamic_cast<const OlsonTimeZone *>(&tz) != NULL) { |
| // short cut for OlsonTimeZone |
| const OlsonTimeZone *otz = (const OlsonTimeZone*)&tz; |
| canonicalID = otz->getCanonicalID(); |
| } |
| if (canonicalID == NULL) { |
| return NULL; |
| } |
| return getShortIDFromCanonical(canonicalID); |
| } |
| |
| const UChar* |
| ZoneMeta::getShortID(const UnicodeString& id) { |
| UErrorCode status = U_ZERO_ERROR; |
| const UChar* canonicalID = ZoneMeta::getCanonicalCLDRID(id, status); |
| if (U_FAILURE(status) || canonicalID == NULL) { |
| return NULL; |
| } |
| return ZoneMeta::getShortIDFromCanonical(canonicalID); |
| } |
| |
| const UChar* |
| ZoneMeta::getShortIDFromCanonical(const UChar* canonicalID) { |
| const UChar* shortID = NULL; |
| int32_t len = u_strlen(canonicalID); |
| char tzidKey[ZID_KEY_MAX + 1]; |
| |
| u_UCharsToChars(canonicalID, tzidKey, len); |
| tzidKey[len] = (char) 0; // Make sure it is null terminated. |
| |
| // replace '/' with ':' |
| char *p = tzidKey; |
| while (*p++) { |
| if (*p == '/') { |
| *p = ':'; |
| } |
| } |
| |
| UErrorCode status = U_ZERO_ERROR; |
| UResourceBundle *rb = ures_openDirect(NULL, gKeyTypeData, &status); |
| ures_getByKey(rb, gTypeMapTag, rb, &status); |
| ures_getByKey(rb, gTimezoneTag, rb, &status); |
| shortID = ures_getStringByKey(rb, tzidKey, NULL, &status); |
| ures_close(rb); |
| |
| return shortID; |
| } |
| |
| U_NAMESPACE_END |
| |
| #endif /* #if !UCONFIG_NO_FORMATTING */ |
