1 /* 2 ******************************************************************************* 3 * Copyright (C) 2007-2009, International Business Machines Corporation and * 4 * others. All Rights Reserved. * 5 ******************************************************************************* 6 */ 7 #ifndef ZONEMETA_H 8 #define ZONEMETA_H 9 10 #include "unicode/utypes.h" 11 12 #if !UCONFIG_NO_FORMATTING 13 14 #include "unicode/unistr.h" 15 #include "hash.h" 16 17 U_NAMESPACE_BEGIN 18 19 typedef struct CanonicalMapEntry { 20 const UChar *id; // const because it's a reference to a resource bundle string. 21 const UChar *country; // const because it's a reference to a resource bundle string. 22 } CanonicalMapEntry; 23 24 typedef struct OlsonToMetaMappingEntry { 25 const UChar *mzid; // const because it's a reference to a resource bundle string. 26 UDate from; 27 UDate to; 28 } OlsonToMetaMappingEntry; 29 30 typedef struct MetaToOlsonMappingEntry { 31 const UChar *id; // const because it's a reference to a resource bundle string. 32 UChar *territory; 33 } MetaToOlsonMappingEntry; 34 35 class UVector; 36 37 class U_I18N_API ZoneMeta { 38 public: 39 /** 40 * Return the canonical id for this system tzid, which might be the id itself. 41 * If the given system tzid is not know, U_ILLEGAL_ARGUMENT_ERROR is set in the status. 42 */ 43 static UnicodeString& U_EXPORT2 getCanonicalSystemID(const UnicodeString &tzid, UnicodeString &systemID, UErrorCode& status); 44 45 /** 46 * Return the canonical country code for this tzid. If we have none, or if the time zone 47 * is not associated with a country, return null. 48 */ 49 static UnicodeString& U_EXPORT2 getCanonicalCountry(const UnicodeString &tzid, UnicodeString &canonicalCountry); 50 51 /** 52 * Return the country code if this is a 'single' time zone that can fallback to just 53 * the country, otherwise return empty string. (Note, one must also check the locale data 54 * to see that there is a localization for the country in order to implement 55 * tr#35 appendix J step 5.) 56 */ 57 static UnicodeString& U_EXPORT2 getSingleCountry(const UnicodeString &tzid, UnicodeString &country); 58 59 /** 60 * Returns a CLDR metazone ID for the given Olson tzid and time. 61 */ 62 static UnicodeString& U_EXPORT2 getMetazoneID(const UnicodeString &tzid, UDate date, UnicodeString &result); 63 /** 64 * Returns an Olson ID for the ginve metazone and region 65 */ 66 static UnicodeString& U_EXPORT2 getZoneIdByMetazone(const UnicodeString &mzid, const UnicodeString ®ion, UnicodeString &result); 67 68 static const UVector* U_EXPORT2 getMetazoneMappings(const UnicodeString &tzid); 69 70 private: 71 ZoneMeta(); // Prevent construction. 72 static const CanonicalMapEntry* U_EXPORT2 getCanonicalInfo(const UnicodeString &tzid); 73 74 static void initializeCanonicalMap(void); 75 static void initializeOlsonToMeta(void); 76 static void initializeMetaToOlson(void); 77 static UHashtable* createCanonicalMap(void); 78 static UHashtable* createOlsonToMetaMap(void); 79 static UHashtable* createMetaToOlsonMap(void); 80 }; 81 82 U_NAMESPACE_END 83 84 #endif /* #if !UCONFIG_NO_FORMATTING */ 85 #endif // ZONEMETA_H 86