/*
*******************************************************************************
-* Copyright (C) 2007-2012, International Business Machines Corporation and *
-* others. All Rights Reserved. *
+* Copyright (C) 2007-2014, International Business Machines Corporation and
+* others. All Rights Reserved.
*******************************************************************************
*/
#include "uhash.h"
#include "olsontz.h"
-static UMTX gZoneMetaLock = NULL;
+static UMutex gZoneMetaLock = U_MUTEX_INITIALIZER;
// CLDR Canonical ID mapping table
static UHashtable *gCanonicalIDCache = NULL;
-static UBool gCanonicalIDCacheInitialized = FALSE;
+static icu::UInitOnce gCanonicalIDCacheInitOnce = U_INITONCE_INITIALIZER;
// Metazone mapping table
static UHashtable *gOlsonToMeta = NULL;
-static UBool gOlsonToMetaInitialized = FALSE;
+static icu::UInitOnce gOlsonToMetaInitOnce = U_INITONCE_INITIALIZER;
// Available metazone IDs vector and table
static icu::UVector *gMetaZoneIDs = NULL;
static UHashtable *gMetaZoneIDTable = NULL;
-static UBool gMetaZoneIDsInitialized = FALSE;
+static icu::UInitOnce gMetaZoneIDsInitOnce = U_INITONCE_INITIALIZER;
// Country info vectors
static icu::UVector *gSingleZoneCountries = NULL;
static icu::UVector *gMultiZonesCountries = NULL;
-static UBool gCountryInfoVectorsInitialized = FALSE;
+static icu::UInitOnce gCountryInfoVectorsInitOnce = U_INITONCE_INITIALIZER;
U_CDECL_BEGIN
*/
static UBool U_CALLCONV zoneMeta_cleanup(void)
{
- umtx_destroy(&gZoneMetaLock);
-
if (gCanonicalIDCache != NULL) {
uhash_close(gCanonicalIDCache);
gCanonicalIDCache = NULL;
}
- gCanonicalIDCacheInitialized = FALSE;
+ gCanonicalIDCacheInitOnce.reset();
if (gOlsonToMeta != NULL) {
uhash_close(gOlsonToMeta);
gOlsonToMeta = NULL;
}
- gOlsonToMetaInitialized = FALSE;
+ 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;
- gMetaZoneIDsInitialized = FALSE;
+ gMetaZoneIDs = NULL;
+ gMetaZoneIDsInitOnce.reset();
delete gSingleZoneCountries;
+ gSingleZoneCountries = NULL;
delete gMultiZonesCountries;
- gCountryInfoVectorsInitialized = FALSE;
+ gMultiZonesCountries = NULL;
+ gCountryInfoVectorsInitOnce.reset();
return TRUE;
}
static const char gMetazoneInfo[] = "metazoneInfo";
static const char gMapTimezonesTag[] = "mapTimezones";
-static const char gTimeZoneTypes[] = "timezoneTypes";
+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"
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;
}
- int32_t len = tzid.length();
- if (len > ZID_KEY_MAX) {
+ if (tzid.isBogus() || tzid.length() > ZID_KEY_MAX) {
status = U_ILLEGAL_ARGUMENT_ERROR;
return NULL;
}
// Checking the cached results
- UBool initialized;
- UMTX_CHECK(&gZoneMetaLock, gCanonicalIDCacheInitialized, initialized);
- if (!initialized) {
- // Create empty hashtable
- umtx_lock(&gZoneMetaLock);
- {
- if (!gCanonicalIDCacheInitialized) {
- gCanonicalIDCache = uhash_open(uhash_hashUChars, uhash_compareUChars, NULL, &status);
- if (gCanonicalIDCache == NULL) {
- status = U_MEMORY_ALLOCATION_ERROR;
- }
- if (U_FAILURE(status)) {
- gCanonicalIDCache = NULL;
- return NULL;
- }
- // No key/value deleters - keys/values are from a resource bundle
- gCanonicalIDCacheInitialized = TRUE;
- ucln_i18n_registerCleanup(UCLN_I18N_ZONEMETA, zoneMeta_cleanup);
- }
- }
- umtx_unlock(&gZoneMetaLock);
+ umtx_initOnce(gCanonicalIDCacheInitOnce, &initCanonicalIDCache, status);
+ if (U_FAILURE(status)) {
+ return NULL;
}
const UChar *canonicalID = NULL;
// If not, resolve CLDR canonical ID with resource data
UBool isInputCanonical = FALSE;
char id[ZID_KEY_MAX + 1];
- const UChar* idChars = tzid.getBuffer();
-
- u_UCharsToChars(idChars,id,len);
- id[len] = (char) 0; // Make sure it is null terminated.
+ tzid.extract(0, 0x7fffffff, id, UPRV_LENGTHOF(id), US_INV);
// replace '/' with ':'
char *p = id;
}
}
- UResourceBundle *top = ures_openDirect(NULL, gTimeZoneTypes, &tmpStatus);
+ 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 (derefer == NULL) {
status = U_ILLEGAL_ARGUMENT_ERROR;
} else {
- len = u_strlen(derefer);
+ int32_t len = u_strlen(derefer);
u_UCharsToChars(derefer,id,len);
id[len] = (char) 0; // Make sure it is null terminated.
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;
+ }
-
-UnicodeString& U_EXPORT2
-ZoneMeta::getCanonicalCountry(const UnicodeString &tzid, UnicodeString &canonicalCountry) {
- const UChar *region = TimeZone::getRegion(tzid);
- if (region != NULL && u_strcmp(gWorld, region) != 0) {
- canonicalCountry.setTo(region, -1);
- } else {
- canonicalCountry.setToBogus();
+ if (U_FAILURE(status)) {
+ delete gSingleZoneCountries;
+ delete gMultiZonesCountries;
+ gSingleZoneCountries = NULL;
+ gMultiZonesCountries = NULL;
}
- return canonicalCountry;
+ ucln_i18n_registerCleanup(UCLN_I18N_ZONEMETA, zoneMeta_cleanup);
}
+
UnicodeString& U_EXPORT2
-ZoneMeta::getSingleCountry(const UnicodeString &tzid, UnicodeString &country) {
- // Get canonical country for the zone
+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) {
- // special case - unknown or "001"
+ if (region != NULL && u_strcmp(gWorld, region) != 0) {
+ country.setTo(region, -1);
+ } else {
country.setToBogus();
return country;
}
- // Checking the cached results
- UErrorCode status = U_ZERO_ERROR;
- UBool initialized;
- UMTX_CHECK(&gZoneMetaLock, gCountryInfoVectorsInitialized, initialized);
- if (!initialized) {
- // Create empty vectors
- umtx_lock(&gZoneMetaLock);
- {
- if (!gCountryInfoVectorsInitialized) {
- // 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_SUCCESS(status)) {
- gCountryInfoVectorsInitialized = TRUE;
- } else {
- delete gSingleZoneCountries;
- delete gMultiZonesCountries;
- }
- }
- }
- umtx_unlock(&gZoneMetaLock);
+ 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)) {
- country.setToBogus();
return country;
}
- U_ASSERT(gSingleZoneCountries != NULL);
- U_ASSERT(gMultiZonesCountries != NULL);
- }
- // Check if it was already cached
- UBool cached = FALSE;
- UBool multiZones = FALSE;
- umtx_lock(&gZoneMetaLock);
- {
- multiZones = cached = gMultiZonesCountries->contains((void*)region);
- if (!multiZones) {
- cached = gSingleZoneCountries->contains((void*)region);
+ // 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);
+ umtx_unlock(&gZoneMetaLock);
- if (!cached) {
- // We need to go through all zones associated with the region.
- // This is relatively heavy operation.
+ 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_ASSERT(u_strlen(region) == 2);
- char buf[] = {0, 0, 0};
- u_UCharsToChars(region, buf, 2);
+ u_UCharsToChars(region, regionBuf, 2);
- StringEnumeration *ids = TimeZone::createTimeZoneIDEnumeration(UCAL_ZONE_TYPE_CANONICAL_LOCATION, buf, NULL, status);
- int32_t idsLen = ids->count(status);
- if (U_SUCCESS(status) && idsLen > 1) {
- // multiple canonical zones are available for the region
- multiZones = TRUE;
- }
- if (U_FAILURE(status)) {
- // no single country by default for any error cases
- multiZones = TRUE;
+ 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);
}
- delete ids;
- // Cache the result
- umtx_lock(&gZoneMetaLock);
- {
- UErrorCode ec = U_ZERO_ERROR;
- if (multiZones) {
- if (!gMultiZonesCountries->contains((void*)region)) {
- gMultiZonesCountries->addElement((void*)region, ec);
- }
- } else {
- if (!gSingleZoneCountries->contains((void*)region)) {
- gSingleZoneCountries->addElement((void*)region, ec);
+ 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);
}
- umtx_unlock(&gZoneMetaLock);
}
- if (multiZones) {
- country.setToBogus();
- } else {
- country.setTo(region, -1);
- }
return country;
}
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;
return NULL;
}
- UBool initialized;
- UMTX_CHECK(&gZoneMetaLock, gOlsonToMetaInitialized, initialized);
- if (!initialized) {
- UHashtable *tmpOlsonToMeta = uhash_open(uhash_hashUChars, uhash_compareUChars, NULL, &status);
- if (U_FAILURE(status)) {
- return NULL;
- }
- uhash_setKeyDeleter(tmpOlsonToMeta, deleteUCharString);
- uhash_setValueDeleter(tmpOlsonToMeta, deleteUVector);
-
- umtx_lock(&gZoneMetaLock);
- {
- if (!gOlsonToMetaInitialized) {
- gOlsonToMeta = tmpOlsonToMeta;
- tmpOlsonToMeta = NULL;
- gOlsonToMetaInitialized = TRUE;
- }
- }
- umtx_unlock(&gZoneMetaLock);
-
- // OK to call the following multiple times with the same function
- ucln_i18n_registerCleanup(UCLN_I18N_ZONEMETA, zoneMeta_cleanup);
- if (tmpOlsonToMeta != NULL) {
- uhash_close(tmpOlsonToMeta);
- }
+ umtx_initOnce(gOlsonToMetaInitOnce, &olsonToMetaInit, status);
+ if (U_FAILURE(status)) {
+ return NULL;
}
// get the mapping from cache
char keyBuf[ZID_KEY_MAX + 1];
int32_t keyLen = 0;
- if (mzid.length() > ZID_KEY_MAX) {
+ if (mzid.isBogus() || mzid.length() > ZID_KEY_MAX) {
result.setToBogus();
return result;
}
return result;
}
-void
-ZoneMeta::initAvailableMetaZoneIDs () {
- UBool initialized;
- UMTX_CHECK(&gZoneMetaLock, gMetaZoneIDsInitialized, initialized);
- if (!initialized) {
- umtx_lock(&gZoneMetaLock);
- {
- if (!gMetaZoneIDsInitialized) {
- UErrorCode status = U_ZERO_ERROR;
- UHashtable *metaZoneIDTable = uhash_open(uhash_hashUnicodeString, uhash_compareUnicodeString, NULL, &status);
- uhash_setKeyDeleter(metaZoneIDTable, uprv_deleteUObject);
- // No valueDeleter, because the vector maintain the value objects
- UVector *metaZoneIDs = NULL;
- if (U_SUCCESS(status)) {
- metaZoneIDs = new UVector(NULL, uhash_compareUChars, status);
- if (metaZoneIDs == NULL) {
- status = U_MEMORY_ALLOCATION_ERROR;
- }
- } else {
- uhash_close(metaZoneIDTable);
- }
- if (U_SUCCESS(status)) {
- U_ASSERT(metaZoneIDs != NULL);
- metaZoneIDs->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 = 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(metaZoneIDTable, usMzID) == NULL) {
- metaZoneIDs->addElement((void *)uMzID, status);
- uhash_put(metaZoneIDTable, (void *)usMzID, (void *)uMzID, &status);
- } else {
- uprv_free(uMzID);
- delete usMzID;
- }
- }
- if (U_SUCCESS(status)) {
- gMetaZoneIDs = metaZoneIDs;
- gMetaZoneIDTable = metaZoneIDTable;
- gMetaZoneIDsInitialized = TRUE;
- } else {
- uhash_close(metaZoneIDTable);
- delete metaZoneIDs;
- }
- ures_close(&res);
- ures_close(bundle);
- ures_close(rb);
- }
- }
+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;
}
- umtx_unlock(&gZoneMetaLock);
+ const char *mzID = ures_getKey(&res);
+ int32_t len = 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() {
- initAvailableMetaZoneIDs();
+ umtx_initOnce(gMetaZoneIDsInitOnce, &initAvailableMetaZoneIDs);
return gMetaZoneIDs;
}
const UChar*
ZoneMeta::findMetaZoneID(const UnicodeString& mzid) {
- initAvailableMetaZoneIDs();
+ umtx_initOnce(gMetaZoneIDsInitOnce, &initAvailableMetaZoneIDs);
+ if (gMetaZoneIDTable == NULL) {
+ return NULL;
+ }
return (const UChar*)uhash_get(gMetaZoneIDTable, &mzid);
}
id.setTo(gCustomTzPrefix, -1);
if (hour != 0 || min != 0) {
if (negative) {
- id.append(0x2D); // '-'
+ id.append((UChar)0x2D); // '-'
} else {
- id.append(0x2B); // '+'
+ id.append((UChar)0x2B); // '+'
}
// Always use US-ASCII digits
- id.append(0x30 + (hour%100)/10);
- id.append(0x30 + (hour%10));
- id.append(0x3A); // ':'
- id.append(0x30 + (min%100)/10);
- id.append(0x30 + (min%10));
+ 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(0x3A); // ':'
- id.append(0x30 + (sec%100)/10);
- id.append(0x30 + (sec%10));
+ 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
projects / apple / icu.git / blobdiff