808 lines
25 KiB
C++
808 lines
25 KiB
C++
/*
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*******************************************************************************
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* Copyright (C) 2007-2008, International Business Machines Corporation and *
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* others. All Rights Reserved. *
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*******************************************************************************
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*/
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#include "unicode/utypes.h"
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#if !UCONFIG_NO_FORMATTING
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#include "zonemeta.h"
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#include "unicode/timezone.h"
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#include "unicode/ustring.h"
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#include "unicode/putil.h"
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#include "umutex.h"
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#include "uvector.h"
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#include "cmemory.h"
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#include "gregoimp.h"
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#include "cstring.h"
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#include "ucln_in.h"
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static UBool gZoneMetaInitialized = FALSE;
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// Metazone mapping tables
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static UMTX gZoneMetaLock = NULL;
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static U_NAMESPACE_QUALIFIER Hashtable *gCanonicalMap = NULL;
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static U_NAMESPACE_QUALIFIER Hashtable *gOlsonToMeta = NULL;
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static U_NAMESPACE_QUALIFIER Hashtable *gMetaToOlson = NULL;
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U_CDECL_BEGIN
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/**
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* Cleanup callback func
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*/
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static UBool U_CALLCONV zoneMeta_cleanup(void)
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{
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umtx_destroy(&gZoneMetaLock);
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if (gCanonicalMap != NULL) {
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delete gCanonicalMap;
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gCanonicalMap = NULL;
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}
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if (gOlsonToMeta != NULL) {
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delete gOlsonToMeta;
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gOlsonToMeta = NULL;
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}
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if (gMetaToOlson != NULL) {
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delete gMetaToOlson;
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gMetaToOlson = NULL;
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}
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gZoneMetaInitialized = FALSE;
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return TRUE;
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}
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/**
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* Deleter for UVector
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*/
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static void U_CALLCONV
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deleteUVector(void *obj) {
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delete (U_NAMESPACE_QUALIFIER UVector*) obj;
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}
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/**
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* Deleter for CanonicalMapEntry
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*/
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static void U_CALLCONV
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deleteCanonicalMapEntry(void *obj) {
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U_NAMESPACE_QUALIFIER CanonicalMapEntry *entry = (U_NAMESPACE_QUALIFIER CanonicalMapEntry*)obj;
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uprv_free(entry->id);
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uprv_free(entry);
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}
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/**
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* Deleter for OlsonToMetaMappingEntry
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*/
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static void U_CALLCONV
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deleteOlsonToMetaMappingEntry(void *obj) {
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U_NAMESPACE_QUALIFIER OlsonToMetaMappingEntry *entry = (U_NAMESPACE_QUALIFIER OlsonToMetaMappingEntry*)obj;
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uprv_free(entry);
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}
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/**
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* Deleter for MetaToOlsonMappingEntry
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*/
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static void U_CALLCONV
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deleteMetaToOlsonMappingEntry(void *obj) {
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U_NAMESPACE_QUALIFIER MetaToOlsonMappingEntry *entry = (U_NAMESPACE_QUALIFIER MetaToOlsonMappingEntry*)obj;
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uprv_free(entry->territory);
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uprv_free(entry);
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}
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U_CDECL_END
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U_NAMESPACE_BEGIN
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#define ZID_KEY_MAX 128
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static const char gZoneStringsTag[] = "zoneStrings";
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static const char gUseMetazoneTag[] = "um";
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static const char gSupplementalData[] = "supplementalData";
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static const char gMapTimezonesTag[] = "mapTimezones";
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static const char gMetazonesTag[] = "metazones";
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static const char gZoneFormattingTag[] = "zoneFormatting";
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static const char gTerritoryTag[] = "territory";
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static const char gAliasesTag[] = "aliases";
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static const char gMultizoneTag[] = "multizone";
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static const char gMetazoneInfo[] = "metazoneInfo";
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static const char gMetazoneMappings[] = "metazoneMappings";
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#define MZID_PREFIX_LEN 5
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static const char gMetazoneIdPrefix[] = "meta:";
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static const UChar gWorld[] = {0x30, 0x30, 0x31, 0x00}; // "001"
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#define ASCII_DIGIT(c) (((c)>=0x30 && (c)<=0x39) ? (c)-0x30 : -1)
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/*
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* Convert a date string used by metazone mappings to UDate.
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* The format used by CLDR metazone mapping is "yyyy-MM-dd HH:mm".
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*/
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static UDate
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parseDate (const UChar *text, UErrorCode &status) {
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if (U_FAILURE(status)) {
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return 0;
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}
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int32_t len = u_strlen(text);
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if (len != 16 && len != 10) {
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// It must be yyyy-MM-dd HH:mm (length 16) or yyyy-MM-dd (length 10)
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status = U_INVALID_FORMAT_ERROR;
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return 0;
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}
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int32_t year = 0, month = 0, day = 0, hour = 0, min = 0, n;
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int32_t idx;
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// "yyyy" (0 - 3)
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for (idx = 0; idx <= 3 && U_SUCCESS(status); idx++) {
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n = ASCII_DIGIT(text[idx]);
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if (n >= 0) {
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year = 10*year + n;
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} else {
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status = U_INVALID_FORMAT_ERROR;
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}
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}
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// "MM" (5 - 6)
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for (idx = 5; idx <= 6 && U_SUCCESS(status); idx++) {
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n = ASCII_DIGIT(text[idx]);
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if (n >= 0) {
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month = 10*month + n;
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} else {
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status = U_INVALID_FORMAT_ERROR;
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}
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}
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// "dd" (8 - 9)
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for (idx = 8; idx <= 9 && U_SUCCESS(status); idx++) {
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n = ASCII_DIGIT(text[idx]);
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if (n >= 0) {
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day = 10*day + n;
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} else {
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status = U_INVALID_FORMAT_ERROR;
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}
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}
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if (len == 16) {
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// "HH" (11 - 12)
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for (idx = 11; idx <= 12 && U_SUCCESS(status); idx++) {
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n = ASCII_DIGIT(text[idx]);
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if (n >= 0) {
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hour = 10*hour + n;
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} else {
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status = U_INVALID_FORMAT_ERROR;
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}
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}
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// "mm" (14 - 15)
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for (idx = 14; idx <= 15 && U_SUCCESS(status); idx++) {
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n = ASCII_DIGIT(text[idx]);
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if (n >= 0) {
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min = 10*min + n;
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} else {
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status = U_INVALID_FORMAT_ERROR;
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}
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}
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}
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if (U_SUCCESS(status)) {
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UDate date = Grego::fieldsToDay(year, month - 1, day) * U_MILLIS_PER_DAY
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+ hour * U_MILLIS_PER_HOUR + min * U_MILLIS_PER_MINUTE;
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return date;
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}
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return 0;
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}
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Hashtable*
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ZoneMeta::createCanonicalMap(void) {
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UErrorCode status = U_ZERO_ERROR;
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Hashtable *canonicalMap = NULL;
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UResourceBundle *zoneFormatting = NULL;
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UResourceBundle *tzitem = NULL;
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UResourceBundle *aliases = NULL;
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StringEnumeration* tzenum = NULL;
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int32_t numZones;
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canonicalMap = new Hashtable(uhash_compareUnicodeString, NULL, status);
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if (U_FAILURE(status)) {
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return NULL;
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}
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canonicalMap->setValueDeleter(deleteCanonicalMapEntry);
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zoneFormatting = ures_openDirect(NULL, gSupplementalData, &status);
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zoneFormatting = ures_getByKey(zoneFormatting, gZoneFormattingTag, zoneFormatting, &status);
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if (U_FAILURE(status)) {
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goto error_cleanup;
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}
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while (ures_hasNext(zoneFormatting)) {
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tzitem = ures_getNextResource(zoneFormatting, tzitem, &status);
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if (U_FAILURE(status)) {
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status = U_ZERO_ERROR;
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continue;
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}
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if (ures_getType(tzitem) != URES_TABLE) {
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continue;
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}
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int32_t territoryLen;
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const UChar *territory = ures_getStringByKey(tzitem, gTerritoryTag, &territoryLen, &status);
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if (U_FAILURE(status)) {
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territory = NULL;
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status = U_ZERO_ERROR;
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}
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int32_t tzidLen = 0;
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char tzid[ZID_KEY_MAX];
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const char *tzkey = ures_getKey(tzitem);
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uprv_strcpy(tzid, tzkey);
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// Replace ':' with '/'
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char *p = tzid;
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while (*p) {
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if (*p == ':') {
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*p = '/';
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}
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p++;
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tzidLen++;
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}
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// Create canonical map entry
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CanonicalMapEntry *entry = (CanonicalMapEntry*)uprv_malloc(sizeof(CanonicalMapEntry));
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if (entry == NULL) {
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status = U_MEMORY_ALLOCATION_ERROR;
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goto error_cleanup;
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}
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entry->id = (UChar*)uprv_malloc((tzidLen + 1) * sizeof(UChar));
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if (entry->id == NULL) {
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status = U_MEMORY_ALLOCATION_ERROR;
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uprv_free(entry);
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goto error_cleanup;
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}
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u_charsToUChars(tzid, entry->id, tzidLen + 1);
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if (territory == NULL || u_strcmp(territory, gWorld) == 0) {
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entry->country = NULL;
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} else {
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entry->country = territory;
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}
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// Put this entry to the table
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canonicalMap->put(UnicodeString(entry->id), entry, status);
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if (U_FAILURE(status)) {
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goto error_cleanup;
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}
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// Get aliases
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aliases = ures_getByKey(tzitem, gAliasesTag, aliases, &status);
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if (U_FAILURE(status)) {
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// No aliases
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status = U_ZERO_ERROR;
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continue;
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}
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while (ures_hasNext(aliases)) {
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const UChar* alias = ures_getNextString(aliases, NULL, NULL, &status);
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if (U_FAILURE(status)) {
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status = U_ZERO_ERROR;
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continue;
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}
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// Create canonical map entry for this alias
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entry = (CanonicalMapEntry*)uprv_malloc(sizeof(CanonicalMapEntry));
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if (entry == NULL) {
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status = U_MEMORY_ALLOCATION_ERROR;
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goto error_cleanup;
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}
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entry->id = (UChar*)uprv_malloc((tzidLen + 1) * sizeof(UChar));
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if (entry->id == NULL) {
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status = U_MEMORY_ALLOCATION_ERROR;
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uprv_free(entry);
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goto error_cleanup;
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}
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u_charsToUChars(tzid, entry->id, tzidLen + 1);
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if (territory == NULL || u_strcmp(territory, gWorld) == 0) {
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entry->country = NULL;
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} else {
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entry->country = territory;
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}
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canonicalMap->put(UnicodeString(alias), entry, status);
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if (U_FAILURE(status)) {
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goto error_cleanup;
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}
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}
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}
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// Some available Olson zones are not included in CLDR data (such as Asia/Riyadh87).
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// Also, when we update Olson tzdata, new zones may be added.
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// This code scans all available zones in zoneinfo.res, and if any of them are
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// missing, add them to the map.
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tzenum = TimeZone::createEnumeration();
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numZones = tzenum->count(status);
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if (U_SUCCESS(status)) {
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int32_t i;
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for (i = 0; i < numZones; i++) {
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const UnicodeString *zone = tzenum->snext(status);
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if (U_FAILURE(status)) {
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// We should not get here.
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status = U_ZERO_ERROR;
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continue;
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}
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CanonicalMapEntry *entry = (CanonicalMapEntry*)canonicalMap->get(*zone);
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if (entry) {
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// Already included in CLDR data
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continue;
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}
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// Not in CLDR data, but it could be new one whose alias is available
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// in CLDR.
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int32_t nTzdataEquivalent = TimeZone::countEquivalentIDs(*zone);
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int32_t j;
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for (j = 0; j < nTzdataEquivalent; j++) {
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UnicodeString alias = TimeZone::getEquivalentID(*zone, j);
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if (alias == *zone) {
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continue;
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}
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entry = (CanonicalMapEntry*)canonicalMap->get(alias);
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if (entry != NULL) {
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break;
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}
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}
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// Create a new map entry
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CanonicalMapEntry* newEntry = (CanonicalMapEntry*)uprv_malloc(sizeof(CanonicalMapEntry));
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int32_t idLen;
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if (newEntry == NULL) {
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status = U_MEMORY_ALLOCATION_ERROR;
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goto error_cleanup;
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}
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if (entry == NULL) {
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// Set dereferenced zone ID as the canonical ID
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UnicodeString derefZone;
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TimeZone::dereferOlsonLink(*zone, derefZone);
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if (derefZone.length() == 0) {
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// It should never happen.. but just in case
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derefZone = *zone;
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}
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idLen = derefZone.length() + 1;
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newEntry->id = (UChar*)uprv_malloc(idLen * sizeof(UChar));
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if (newEntry->id == NULL) {
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status = U_MEMORY_ALLOCATION_ERROR;
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uprv_free(newEntry);
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goto error_cleanup;
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}
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// Copy NULL terminated string
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derefZone.extract(newEntry->id, idLen, status);
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if (U_FAILURE(status)) {
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uprv_free(newEntry->id);
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uprv_free(newEntry);
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goto error_cleanup;
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}
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// No territory information available
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newEntry->country = NULL;
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} else {
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// Use the canonical ID in the existing entry
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idLen = u_strlen(entry->id) + 1;
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newEntry->id = (UChar*)uprv_malloc(idLen * sizeof(UChar));
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if (newEntry->id == NULL) {
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status = U_MEMORY_ALLOCATION_ERROR;
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uprv_free(newEntry);
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goto error_cleanup;
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}
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// Duplicate the entry
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u_strcpy(newEntry->id, entry->id);
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newEntry->country = entry->country;
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}
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canonicalMap->put(*zone, newEntry, status);
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if (U_FAILURE(status)) {
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goto error_cleanup;
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}
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}
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}
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normal_cleanup:
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ures_close(aliases);
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ures_close(tzitem);
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ures_close(zoneFormatting);
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delete tzenum;
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return canonicalMap;
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error_cleanup:
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delete canonicalMap;
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canonicalMap = NULL;
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goto normal_cleanup;
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}
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/*
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* Creating Olson tzid to metazone mappings from resource (3.8.1 and beyond)
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*/
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Hashtable*
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ZoneMeta::createOlsonToMetaMap(void) {
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UErrorCode status = U_ZERO_ERROR;
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Hashtable *olsonToMeta = NULL;
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UResourceBundle *metazoneMappings = NULL;
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UResourceBundle *zoneItem = NULL;
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UResourceBundle *mz = NULL;
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StringEnumeration *tzids = NULL;
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olsonToMeta = new Hashtable(uhash_compareUnicodeString, NULL, status);
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if (U_FAILURE(status)) {
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return NULL;
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}
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olsonToMeta->setValueDeleter(deleteUVector);
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// Read metazone mappings from metazoneInfo bundle
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metazoneMappings = ures_openDirect(NULL, gMetazoneInfo, &status);
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metazoneMappings = ures_getByKey(metazoneMappings, gMetazoneMappings, metazoneMappings, &status);
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if (U_FAILURE(status)) {
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goto error_cleanup;
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}
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// Walk through all canonical tzids
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char zidkey[ZID_KEY_MAX];
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tzids = TimeZone::createEnumeration();
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const UnicodeString *tzid;
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while ((tzid = tzids->snext(status))) {
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if (U_FAILURE(status)) {
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goto error_cleanup;
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}
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// We may skip aliases, because the bundle
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// contains only canonical IDs. For now, try
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// all of them.
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tzid->extract(0, tzid->length(), zidkey, sizeof(zidkey), US_INV);
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zidkey[sizeof(zidkey)-1] = 0; // NULL terminate just in case.
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// Replace '/' with ':'
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UBool foundSep = FALSE;
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char *p = zidkey;
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while (*p) {
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if (*p == '/') {
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*p = ':';
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foundSep = TRUE;
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}
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p++;
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}
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if (!foundSep) {
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// A valid time zone key has at least one separator
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continue;
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}
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zoneItem = ures_getByKey(metazoneMappings, zidkey, zoneItem, &status);
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if (U_FAILURE(status)) {
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status = U_ZERO_ERROR;
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continue;
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}
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UVector *mzMappings = NULL;
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while (ures_hasNext(zoneItem)) {
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mz = ures_getNextResource(zoneItem, mz, &status);
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const UChar *mz_name = ures_getStringByIndex(mz, 0, NULL, &status);
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const UChar *mz_from = ures_getStringByIndex(mz, 1, NULL, &status);
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const UChar *mz_to = ures_getStringByIndex(mz, 2, NULL, &status);
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if(U_FAILURE(status)){
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status = U_ZERO_ERROR;
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continue;
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}
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// We do not want to use SimpleDateformat to parse boundary dates,
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// because this code could be triggered by the initialization code
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// used by SimpleDateFormat.
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UDate from = parseDate(mz_from, status);
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UDate to = parseDate(mz_to, status);
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if (U_FAILURE(status)) {
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status = U_ZERO_ERROR;
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continue;
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}
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OlsonToMetaMappingEntry *entry = (OlsonToMetaMappingEntry*)uprv_malloc(sizeof(OlsonToMetaMappingEntry));
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if (entry == NULL) {
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status = U_MEMORY_ALLOCATION_ERROR;
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break;
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}
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entry->mzid = mz_name;
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entry->from = from;
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entry->to = to;
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if (mzMappings == NULL) {
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mzMappings = new UVector(deleteOlsonToMetaMappingEntry, NULL, status);
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if (U_FAILURE(status)) {
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delete mzMappings;
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deleteOlsonToMetaMappingEntry(entry);
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uprv_free(entry);
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break;
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}
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}
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mzMappings->addElement(entry, status);
|
|
if (U_FAILURE(status)) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (U_FAILURE(status)) {
|
|
if (mzMappings != NULL) {
|
|
delete mzMappings;
|
|
}
|
|
goto error_cleanup;
|
|
}
|
|
if (mzMappings != NULL) {
|
|
olsonToMeta->put(*tzid, mzMappings, status);
|
|
if (U_FAILURE(status)) {
|
|
goto error_cleanup;
|
|
}
|
|
}
|
|
}
|
|
|
|
normal_cleanup:
|
|
if (tzids != NULL) {
|
|
delete tzids;
|
|
}
|
|
ures_close(zoneItem);
|
|
ures_close(mz);
|
|
ures_close(metazoneMappings);
|
|
return olsonToMeta;
|
|
|
|
error_cleanup:
|
|
if (olsonToMeta != NULL) {
|
|
delete olsonToMeta;
|
|
olsonToMeta = NULL;
|
|
}
|
|
goto normal_cleanup;
|
|
}
|
|
|
|
Hashtable*
|
|
ZoneMeta::createMetaToOlsonMap(void) {
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
|
|
Hashtable *metaToOlson = NULL;
|
|
UResourceBundle *metazones = NULL;
|
|
UResourceBundle *mz = NULL;
|
|
|
|
metaToOlson = new Hashtable(uhash_compareUnicodeString, NULL, status);
|
|
if (U_FAILURE(status)) {
|
|
return NULL;
|
|
}
|
|
metaToOlson->setValueDeleter(deleteUVector);
|
|
|
|
metazones = ures_openDirect(NULL, gSupplementalData, &status);
|
|
metazones = ures_getByKey(metazones, gMapTimezonesTag, metazones, &status);
|
|
metazones = ures_getByKey(metazones, gMetazonesTag, metazones, &status);
|
|
if (U_FAILURE(status)) {
|
|
goto error_cleanup;
|
|
}
|
|
|
|
while (ures_hasNext(metazones)) {
|
|
mz = ures_getNextResource(metazones, mz, &status);
|
|
if (U_FAILURE(status)) {
|
|
status = U_ZERO_ERROR;
|
|
continue;
|
|
}
|
|
const char *mzkey = ures_getKey(mz);
|
|
if (uprv_strncmp(mzkey, gMetazoneIdPrefix, MZID_PREFIX_LEN) == 0) {
|
|
const char *mzid = mzkey + MZID_PREFIX_LEN;
|
|
const char *territory = uprv_strrchr(mzid, '_');
|
|
int32_t mzidLen = 0;
|
|
int32_t territoryLen = 0;
|
|
if (territory) {
|
|
mzidLen = territory - mzid;
|
|
territory++;
|
|
territoryLen = uprv_strlen(territory);
|
|
}
|
|
if (mzidLen > 0 && territoryLen > 0) {
|
|
int32_t tzidLen;
|
|
const UChar *tzid = ures_getStringByIndex(mz, 0, &tzidLen, &status);
|
|
if (U_SUCCESS(status)) {
|
|
// Create MetaToOlsonMappingEntry
|
|
MetaToOlsonMappingEntry *entry = (MetaToOlsonMappingEntry*)uprv_malloc(sizeof(MetaToOlsonMappingEntry));
|
|
if (entry == NULL) {
|
|
status = U_MEMORY_ALLOCATION_ERROR;
|
|
goto error_cleanup;
|
|
}
|
|
entry->id = tzid;
|
|
entry->territory = (UChar*)uprv_malloc((territoryLen + 1) * sizeof(UChar));
|
|
if (entry->territory == NULL) {
|
|
status = U_MEMORY_ALLOCATION_ERROR;
|
|
uprv_free(entry);
|
|
goto error_cleanup;
|
|
}
|
|
u_charsToUChars(territory, entry->territory, territoryLen + 1);
|
|
|
|
// Check if mapping entries for metazone is already available
|
|
UnicodeString mzidStr(mzid, mzidLen, US_INV);
|
|
UVector *tzMappings = (UVector*)metaToOlson->get(mzidStr);
|
|
if (tzMappings == NULL) {
|
|
// Create new UVector and put it into the hashtable
|
|
tzMappings = new UVector(deleteMetaToOlsonMappingEntry, NULL, status);
|
|
metaToOlson->put(mzidStr, tzMappings, status);
|
|
if (U_FAILURE(status)) {
|
|
deleteMetaToOlsonMappingEntry(entry);
|
|
goto error_cleanup;
|
|
}
|
|
}
|
|
tzMappings->addElement(entry, status);
|
|
if (U_FAILURE(status)) {
|
|
goto error_cleanup;
|
|
}
|
|
} else {
|
|
status = U_ZERO_ERROR;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
normal_cleanup:
|
|
ures_close(mz);
|
|
ures_close(metazones);
|
|
return metaToOlson;
|
|
|
|
error_cleanup:
|
|
if (metaToOlson != NULL) {
|
|
delete metaToOlson;
|
|
}
|
|
metaToOlson = NULL;
|
|
goto normal_cleanup;
|
|
}
|
|
|
|
/*
|
|
* Initialize global objects
|
|
*/
|
|
void
|
|
ZoneMeta::initialize(void) {
|
|
UBool initialized;
|
|
UMTX_CHECK(&gZoneMetaLock, gZoneMetaInitialized, initialized);
|
|
if (initialized) {
|
|
return;
|
|
}
|
|
|
|
// Initialize hash tables
|
|
Hashtable *tmpCanonicalMap = createCanonicalMap();
|
|
Hashtable *tmpOlsonToMeta = createOlsonToMetaMap();
|
|
Hashtable *tmpMetaToOlson = createMetaToOlsonMap();
|
|
|
|
umtx_lock(&gZoneMetaLock);
|
|
if (gZoneMetaInitialized) {
|
|
// Another thread already created mappings
|
|
delete tmpCanonicalMap;
|
|
delete tmpOlsonToMeta;
|
|
delete tmpMetaToOlson;
|
|
} else {
|
|
gZoneMetaInitialized = TRUE;
|
|
gCanonicalMap = tmpCanonicalMap;
|
|
gOlsonToMeta = tmpOlsonToMeta;
|
|
gMetaToOlson = tmpMetaToOlson;
|
|
ucln_i18n_registerCleanup(UCLN_I18N_ZONEMETA, zoneMeta_cleanup);
|
|
}
|
|
umtx_unlock(&gZoneMetaLock);
|
|
}
|
|
|
|
UnicodeString& U_EXPORT2
|
|
ZoneMeta::getCanonicalSystemID(const UnicodeString &tzid, UnicodeString &systemID, UErrorCode& status) {
|
|
const CanonicalMapEntry *entry = getCanonicalInfo(tzid);
|
|
if (entry != NULL) {
|
|
systemID.setTo(entry->id);
|
|
} else {
|
|
status = U_ILLEGAL_ARGUMENT_ERROR;
|
|
}
|
|
return systemID;
|
|
}
|
|
|
|
UnicodeString& U_EXPORT2
|
|
ZoneMeta::getCanonicalCountry(const UnicodeString &tzid, UnicodeString &canonicalCountry) {
|
|
const CanonicalMapEntry *entry = getCanonicalInfo(tzid);
|
|
if (entry != NULL && entry->country != NULL) {
|
|
canonicalCountry.setTo(entry->country);
|
|
} else {
|
|
// Use the input tzid
|
|
canonicalCountry.remove();
|
|
}
|
|
return canonicalCountry;
|
|
}
|
|
|
|
const CanonicalMapEntry* U_EXPORT2
|
|
ZoneMeta::getCanonicalInfo(const UnicodeString &tzid) {
|
|
initialize();
|
|
CanonicalMapEntry *entry = NULL;
|
|
if (gCanonicalMap != NULL) {
|
|
entry = (CanonicalMapEntry*)gCanonicalMap->get(tzid);
|
|
}
|
|
return entry;
|
|
}
|
|
|
|
UnicodeString& U_EXPORT2
|
|
ZoneMeta::getSingleCountry(const UnicodeString &tzid, UnicodeString &country) {
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
|
|
// Get canonical country for the zone
|
|
getCanonicalCountry(tzid, country);
|
|
|
|
if (!country.isEmpty()) {
|
|
UResourceBundle *supplementalDataBundle = ures_openDirect(NULL, gSupplementalData, &status);
|
|
UResourceBundle *zoneFormatting = ures_getByKey(supplementalDataBundle, gZoneFormattingTag, NULL, &status);
|
|
UResourceBundle *multizone = ures_getByKey(zoneFormatting, gMultizoneTag, NULL, &status);
|
|
|
|
if (U_SUCCESS(status)) {
|
|
while (ures_hasNext(multizone)) {
|
|
int32_t len;
|
|
const UChar* multizoneCountry = ures_getNextString(multizone, &len, NULL, &status);
|
|
if (country.compare(multizoneCountry, len) == 0) {
|
|
// Included in the multizone country list
|
|
country.remove();
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
ures_close(multizone);
|
|
ures_close(zoneFormatting);
|
|
ures_close(supplementalDataBundle);
|
|
}
|
|
|
|
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.remove();
|
|
}
|
|
return result;
|
|
}
|
|
|
|
const UVector* U_EXPORT2
|
|
ZoneMeta::getMetazoneMappings(const UnicodeString &tzid) {
|
|
initialize();
|
|
const UVector *result = NULL;
|
|
if (gOlsonToMeta != NULL) {
|
|
result = (UVector*)gOlsonToMeta->get(tzid);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
UnicodeString& U_EXPORT2
|
|
ZoneMeta::getZoneIdByMetazone(const UnicodeString &mzid, const UnicodeString ®ion, UnicodeString &result) {
|
|
initialize();
|
|
UBool isSet = FALSE;
|
|
if (gMetaToOlson != NULL) {
|
|
UVector *mappings = (UVector*)gMetaToOlson->get(mzid);
|
|
if (mappings != NULL) {
|
|
// Find a preferred time zone for the given region.
|
|
for (int32_t i = 0; i < mappings->size(); i++) {
|
|
MetaToOlsonMappingEntry *olsonmap = (MetaToOlsonMappingEntry*)mappings->elementAt(i);
|
|
if (region.compare(olsonmap->territory, -1) == 0) {
|
|
result.setTo(olsonmap->id);
|
|
isSet = TRUE;
|
|
break;
|
|
} else if (u_strcmp(olsonmap->territory, gWorld) == 0) {
|
|
result.setTo(olsonmap->id);
|
|
isSet = TRUE;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (!isSet) {
|
|
result.remove();
|
|
}
|
|
return result;
|
|
}
|
|
|
|
|
|
U_NAMESPACE_END
|
|
|
|
#endif /* #if !UCONFIG_NO_FORMATTING */
|