1448 lines
42 KiB
C++
1448 lines
42 KiB
C++
/*
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*******************************************************************************
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* Copyright (C) 2011, 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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* File TZNAMES_IMPL.CPP
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*
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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 "unicode/ustring.h"
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#include "unicode/timezone.h"
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#include "tznames_impl.h"
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#include "cmemory.h"
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#include "cstring.h"
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#include "uassert.h"
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#include "uresimp.h"
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#include "ureslocs.h"
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#include "zonemeta.h"
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#include "ucln_in.h"
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#include "uvector.h"
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#include "olsontz.h"
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U_NAMESPACE_BEGIN
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#define ZID_KEY_MAX 128
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#define MZ_PREFIX_LEN 5
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static const char gZoneStrings[] = "zoneStrings";
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static const char gMZPrefix[] = "meta:";
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static const char* KEYS[] = {"lg", "ls", "ld", "sg", "ss", "sd"};
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static const int32_t KEYS_SIZE = (sizeof KEYS / sizeof KEYS[0]);
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static const char gCuTag[] = "cu";
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static const char gEcTag[] = "ec";
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static const char EMPTY[] = "<empty>"; // place holder for empty ZNames/TZNames
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static const UTimeZoneNameType ALL_NAME_TYPES[] = {
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UTZNM_LONG_GENERIC, UTZNM_LONG_STANDARD, UTZNM_LONG_DAYLIGHT,
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UTZNM_SHORT_GENERIC, UTZNM_SHORT_STANDARD, UTZNM_SHORT_DAYLIGHT,
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UTZNM_SHORT_STANDARD_COMMONLY_USED, UTZNM_SHORT_DAYLIGHT_COMMONLY_USED,
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UTZNM_UNKNOWN // unknown as the last one
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};
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#define DEFAULT_CHARACTERNODE_CAPACITY 1
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// ---------------------------------------------------
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// CaracterNode class implementation
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// ---------------------------------------------------
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void CharacterNode::clear() {
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uprv_memset(this, 0, sizeof(*this));
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}
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void CharacterNode::deleteValues(UObjectDeleter *valueDeleter) {
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if (fValues == NULL) {
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// Do nothing.
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} else if (!fHasValuesVector) {
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if (valueDeleter) {
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valueDeleter(fValues);
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}
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} else {
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delete (UVector *)fValues;
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}
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}
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void
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CharacterNode::addValue(void *value, UObjectDeleter *valueDeleter, UErrorCode &status) {
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if (U_FAILURE(status)) {
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if (valueDeleter) {
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valueDeleter(value);
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}
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return;
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}
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if (fValues == NULL) {
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fValues = value;
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} else {
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// At least one value already.
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if (!fHasValuesVector) {
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// There is only one value so far, and not in a vector yet.
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// Create a vector and add the old value.
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UVector *values = new UVector(valueDeleter, NULL, DEFAULT_CHARACTERNODE_CAPACITY, status);
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if (U_FAILURE(status)) {
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if (valueDeleter) {
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valueDeleter(value);
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}
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return;
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}
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values->addElement(fValues, status);
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fValues = values;
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fHasValuesVector = TRUE;
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}
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// Add the new value.
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((UVector *)fValues)->addElement(value, status);
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}
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}
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// ---------------------------------------------------
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// TextTrieMapSearchResultHandler class implementation
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// ---------------------------------------------------
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TextTrieMapSearchResultHandler::~TextTrieMapSearchResultHandler(){
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}
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// ---------------------------------------------------
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// TextTrieMap class implementation
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// ---------------------------------------------------
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TextTrieMap::TextTrieMap(UBool ignoreCase, UObjectDeleter *valueDeleter)
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: fIgnoreCase(ignoreCase), fNodes(NULL), fNodesCapacity(0), fNodesCount(0),
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fLazyContents(NULL), fIsEmpty(TRUE), fValueDeleter(valueDeleter) {
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}
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TextTrieMap::~TextTrieMap() {
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int32_t index;
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for (index = 0; index < fNodesCount; ++index) {
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fNodes[index].deleteValues(fValueDeleter);
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}
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uprv_free(fNodes);
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if (fLazyContents != NULL) {
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for (int32_t i=0; i<fLazyContents->size(); i+=2) {
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if (fValueDeleter) {
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fValueDeleter(fLazyContents->elementAt(i+1));
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}
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}
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delete fLazyContents;
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}
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}
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int32_t TextTrieMap::isEmpty() const {
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// Use a separate field for fIsEmpty because it will remain unchanged once the
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// Trie is built, while fNodes and fLazyContents change with the lazy init
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// of the nodes structure. Trying to test the changing fields has
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// thread safety complications.
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return fIsEmpty;
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}
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// We defer actually building the TextTrieMap node structure until the first time a
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// search is performed. put() simply saves the parameters in case we do
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// eventually need to build it.
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//
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void
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TextTrieMap::put(const UnicodeString &key, void *value, ZNStringPool &sp, UErrorCode &status) {
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const UChar *s = sp.get(key, status);
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put(s, value, status);
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}
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// This method is for designed for a persistent key, such as string key stored in
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// resource bundle.
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void
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TextTrieMap::put(const UChar *key, void *value, UErrorCode &status) {
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fIsEmpty = FALSE;
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if (fLazyContents == NULL) {
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fLazyContents = new UVector(status);
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if (fLazyContents == NULL) {
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status = U_MEMORY_ALLOCATION_ERROR;
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}
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}
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if (U_FAILURE(status)) {
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return;
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}
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UChar *s = const_cast<UChar *>(key);
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fLazyContents->addElement(s, status);
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fLazyContents->addElement(value, status);
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}
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void
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TextTrieMap::putImpl(const UnicodeString &key, void *value, UErrorCode &status) {
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if (fNodes == NULL) {
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fNodesCapacity = 512;
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fNodes = (CharacterNode *)uprv_malloc(fNodesCapacity * sizeof(CharacterNode));
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fNodes[0].clear(); // Init root node.
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fNodesCount = 1;
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}
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UnicodeString foldedKey;
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const UChar *keyBuffer;
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int32_t keyLength;
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if (fIgnoreCase) {
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// Ok to use fastCopyFrom() because we discard the copy when we return.
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foldedKey.fastCopyFrom(key).foldCase();
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keyBuffer = foldedKey.getBuffer();
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keyLength = foldedKey.length();
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} else {
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keyBuffer = key.getBuffer();
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keyLength = key.length();
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}
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CharacterNode *node = fNodes;
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int32_t index;
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for (index = 0; index < keyLength; ++index) {
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node = addChildNode(node, keyBuffer[index], status);
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}
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node->addValue(value, fValueDeleter, status);
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}
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UBool
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TextTrieMap::growNodes() {
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if (fNodesCapacity == 0xffff) {
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return FALSE; // We use 16-bit node indexes.
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}
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int32_t newCapacity = fNodesCapacity + 1000;
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if (newCapacity > 0xffff) {
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newCapacity = 0xffff;
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}
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CharacterNode *newNodes = (CharacterNode *)uprv_malloc(newCapacity * sizeof(CharacterNode));
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if (newNodes == NULL) {
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return FALSE;
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}
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uprv_memcpy(newNodes, fNodes, fNodesCount * sizeof(CharacterNode));
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uprv_free(fNodes);
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fNodes = newNodes;
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fNodesCapacity = newCapacity;
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return TRUE;
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}
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CharacterNode*
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TextTrieMap::addChildNode(CharacterNode *parent, UChar c, UErrorCode &status) {
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if (U_FAILURE(status)) {
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return NULL;
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}
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// Linear search of the sorted list of children.
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uint16_t prevIndex = 0;
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uint16_t nodeIndex = parent->fFirstChild;
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while (nodeIndex > 0) {
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CharacterNode *current = fNodes + nodeIndex;
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UChar childCharacter = current->fCharacter;
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if (childCharacter == c) {
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return current;
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} else if (childCharacter > c) {
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break;
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}
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prevIndex = nodeIndex;
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nodeIndex = current->fNextSibling;
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}
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// Ensure capacity. Grow fNodes[] if needed.
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if (fNodesCount == fNodesCapacity) {
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int32_t parentIndex = (int32_t)(parent - fNodes);
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if (!growNodes()) {
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status = U_MEMORY_ALLOCATION_ERROR;
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return NULL;
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}
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parent = fNodes + parentIndex;
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}
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// Insert a new child node with c in sorted order.
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CharacterNode *node = fNodes + fNodesCount;
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node->clear();
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node->fCharacter = c;
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node->fNextSibling = nodeIndex;
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if (prevIndex == 0) {
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parent->fFirstChild = (uint16_t)fNodesCount;
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} else {
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fNodes[prevIndex].fNextSibling = (uint16_t)fNodesCount;
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}
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++fNodesCount;
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return node;
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}
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CharacterNode*
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TextTrieMap::getChildNode(CharacterNode *parent, UChar c) const {
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// Linear search of the sorted list of children.
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uint16_t nodeIndex = parent->fFirstChild;
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while (nodeIndex > 0) {
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CharacterNode *current = fNodes + nodeIndex;
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UChar childCharacter = current->fCharacter;
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if (childCharacter == c) {
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return current;
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} else if (childCharacter > c) {
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break;
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}
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nodeIndex = current->fNextSibling;
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}
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return NULL;
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}
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// Mutex for protecting the lazy creation of the Trie node structure on the first call to search().
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static UMTX TextTrieMutex;
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// buildTrie() - The Trie node structure is needed. Create it from the data that was
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// saved at the time the ZoneStringFormatter was created. The Trie is only
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// needed for parsing operations, which are less common than formatting,
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// and the Trie is big, which is why its creation is deferred until first use.
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void TextTrieMap::buildTrie(UErrorCode &status) {
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umtx_lock(&TextTrieMutex);
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if (fLazyContents != NULL) {
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for (int32_t i=0; i<fLazyContents->size(); i+=2) {
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const UChar *key = (UChar *)fLazyContents->elementAt(i);
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void *val = fLazyContents->elementAt(i+1);
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UnicodeString keyString(TRUE, key, -1); // Aliasing UnicodeString constructor.
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putImpl(keyString, val, status);
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}
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delete fLazyContents;
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fLazyContents = NULL;
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}
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umtx_unlock(&TextTrieMutex);
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}
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void
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TextTrieMap::search(const UnicodeString &text, int32_t start,
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TextTrieMapSearchResultHandler *handler, UErrorCode &status) const {
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UBool trieNeedsInitialization = FALSE;
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UMTX_CHECK(&TextTrieMutex, fLazyContents != NULL, trieNeedsInitialization);
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if (trieNeedsInitialization) {
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TextTrieMap *nonConstThis = const_cast<TextTrieMap *>(this);
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nonConstThis->buildTrie(status);
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}
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if (fNodes == NULL) {
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return;
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}
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search(fNodes, text, start, start, handler, status);
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}
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void
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TextTrieMap::search(CharacterNode *node, const UnicodeString &text, int32_t start,
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int32_t index, TextTrieMapSearchResultHandler *handler, UErrorCode &status) const {
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if (U_FAILURE(status)) {
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return;
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}
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if (node->hasValues()) {
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if (!handler->handleMatch(index - start, node, status)) {
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return;
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}
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if (U_FAILURE(status)) {
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return;
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}
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}
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UChar32 c = text.char32At(index);
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if (fIgnoreCase) {
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// size of character may grow after fold operation
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UnicodeString tmp(c);
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tmp.foldCase();
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int32_t tmpidx = 0;
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while (tmpidx < tmp.length()) {
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c = tmp.char32At(tmpidx);
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node = getChildNode(node, c);
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if (node == NULL) {
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break;
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}
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tmpidx = tmp.moveIndex32(tmpidx, 1);
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}
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} else {
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node = getChildNode(node, c);
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}
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if (node != NULL) {
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search(node, text, start, index+1, handler, status);
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}
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}
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// ---------------------------------------------------
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// ZNStringPool class implementation
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// ---------------------------------------------------
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static const int32_t POOL_CHUNK_SIZE = 2000;
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struct ZNStringPoolChunk: public UMemory {
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ZNStringPoolChunk *fNext; // Ptr to next pool chunk
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int32_t fLimit; // Index to start of unused area at end of fStrings
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UChar fStrings[POOL_CHUNK_SIZE]; // Strings array
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ZNStringPoolChunk();
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};
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ZNStringPoolChunk::ZNStringPoolChunk() {
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fNext = NULL;
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fLimit = 0;
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}
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ZNStringPool::ZNStringPool(UErrorCode &status) {
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fChunks = NULL;
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fHash = NULL;
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if (U_FAILURE(status)) {
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return;
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}
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fChunks = new ZNStringPoolChunk;
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if (fChunks == NULL) {
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status = U_MEMORY_ALLOCATION_ERROR;
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return;
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}
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fHash = uhash_open(uhash_hashUChars /* keyHash */,
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uhash_compareUChars /* keyComp */,
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uhash_compareUChars /* valueComp */,
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&status);
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if (U_FAILURE(status)) {
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return;
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}
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}
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ZNStringPool::~ZNStringPool() {
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if (fHash != NULL) {
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uhash_close(fHash);
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fHash = NULL;
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}
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while (fChunks != NULL) {
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ZNStringPoolChunk *nextChunk = fChunks->fNext;
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delete fChunks;
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fChunks = nextChunk;
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}
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}
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static const UChar EmptyString = 0;
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const UChar *ZNStringPool::get(const UChar *s, UErrorCode &status) {
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const UChar *pooledString;
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if (U_FAILURE(status)) {
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return &EmptyString;
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}
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pooledString = static_cast<UChar *>(uhash_get(fHash, s));
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if (pooledString != NULL) {
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return pooledString;
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}
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int32_t length = u_strlen(s);
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int32_t remainingLength = POOL_CHUNK_SIZE - fChunks->fLimit;
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if (remainingLength <= length) {
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U_ASSERT(length < POOL_CHUNK_SIZE);
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if (length >= POOL_CHUNK_SIZE) {
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status = U_INTERNAL_PROGRAM_ERROR;
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return &EmptyString;
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}
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ZNStringPoolChunk *oldChunk = fChunks;
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fChunks = new ZNStringPoolChunk;
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if (fChunks == NULL) {
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status = U_MEMORY_ALLOCATION_ERROR;
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return &EmptyString;
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}
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fChunks->fNext = oldChunk;
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}
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UChar *destString = &fChunks->fStrings[fChunks->fLimit];
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u_strcpy(destString, s);
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fChunks->fLimit += (length + 1);
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uhash_put(fHash, destString, destString, &status);
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return destString;
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}
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//
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// ZNStringPool::adopt() Put a string into the hash, but do not copy the string data
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// into the pool's storage. Used for strings from resource bundles,
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// which will perisist for the life of the zone string formatter, and
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// therefore can be used directly without copying.
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const UChar *ZNStringPool::adopt(const UChar * s, UErrorCode &status) {
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const UChar *pooledString;
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if (U_FAILURE(status)) {
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return &EmptyString;
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}
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if (s != NULL) {
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pooledString = static_cast<UChar *>(uhash_get(fHash, s));
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if (pooledString == NULL) {
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UChar *ncs = const_cast<UChar *>(s);
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uhash_put(fHash, ncs, ncs, &status);
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}
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}
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return s;
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}
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const UChar *ZNStringPool::get(const UnicodeString &s, UErrorCode &status) {
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UnicodeString &nonConstStr = const_cast<UnicodeString &>(s);
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return this->get(nonConstStr.getTerminatedBuffer(), status);
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}
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/*
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* freeze(). Close the hash table that maps to the pooled strings.
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* After freezing, the pool can not be searched or added to,
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* but all existing references to pooled strings remain valid.
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*
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* The main purpose is to recover the storage used for the hash.
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*/
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void ZNStringPool::freeze() {
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uhash_close(fHash);
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fHash = NULL;
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}
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// ---------------------------------------------------
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// ZNames - names common for time zone and meta zone
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// ---------------------------------------------------
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class ZNames : public UMemory {
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public:
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virtual ~ZNames();
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static ZNames* createInstance(UResourceBundle* rb, const char* key);
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const UChar* getName(UTimeZoneNameType type);
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protected:
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ZNames(const UChar** names, UBool shortCommonlyUsed);
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static const UChar** loadData(UResourceBundle* rb, const char* key, UBool& shortCommonlyUsed);
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private:
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const UChar** fNames;
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UBool fShortCommonlyUsed;
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};
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ZNames::ZNames(const UChar** names, UBool shortCommonlyUsed)
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: fNames(names), fShortCommonlyUsed(shortCommonlyUsed) {
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}
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ZNames::~ZNames() {
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if (fNames != NULL) {
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uprv_free(fNames);
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}
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}
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ZNames*
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ZNames::createInstance(UResourceBundle* rb, const char* key) {
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UBool shortCommonlyUsed = FALSE;
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const UChar** names = loadData(rb, key, shortCommonlyUsed);
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if (names == NULL) {
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// No names data available
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return NULL;
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}
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return new ZNames(names, shortCommonlyUsed);
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}
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const UChar*
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ZNames::getName(UTimeZoneNameType type) {
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if (fNames == NULL) {
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|
return NULL;
|
|
}
|
|
const UChar *name = NULL;
|
|
switch(type) {
|
|
case UTZNM_LONG_GENERIC:
|
|
name = fNames[0];
|
|
break;
|
|
case UTZNM_LONG_STANDARD:
|
|
name = fNames[1];
|
|
break;
|
|
case UTZNM_LONG_DAYLIGHT:
|
|
name = fNames[2];
|
|
break;
|
|
case UTZNM_SHORT_GENERIC:
|
|
if (fShortCommonlyUsed) {
|
|
name = fNames[3];
|
|
}
|
|
break;
|
|
case UTZNM_SHORT_STANDARD:
|
|
name = fNames[4];
|
|
break;
|
|
case UTZNM_SHORT_DAYLIGHT:
|
|
name = fNames[5];
|
|
break;
|
|
case UTZNM_SHORT_STANDARD_COMMONLY_USED:
|
|
if (fShortCommonlyUsed) {
|
|
name = fNames[4];
|
|
}
|
|
break;
|
|
case UTZNM_SHORT_DAYLIGHT_COMMONLY_USED:
|
|
if (fShortCommonlyUsed) {
|
|
name = fNames[5];
|
|
}
|
|
break;
|
|
default:
|
|
name = NULL;
|
|
}
|
|
return name;
|
|
}
|
|
|
|
const UChar**
|
|
ZNames::loadData(UResourceBundle* rb, const char* key, UBool& shortCommonlyUsed) {
|
|
if (rb == NULL || key == NULL || *key == 0) {
|
|
return NULL;
|
|
}
|
|
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
const UChar **names = NULL;
|
|
|
|
UResourceBundle* rbTable = NULL;
|
|
rbTable = ures_getByKeyWithFallback(rb, key, rbTable, &status);
|
|
if (U_SUCCESS(status)) {
|
|
names = (const UChar **)uprv_malloc(sizeof(const UChar*) * KEYS_SIZE);
|
|
if (names != NULL) {
|
|
UBool isEmpty = TRUE;
|
|
for (int32_t i = 0; i < KEYS_SIZE; i++) {
|
|
status = U_ZERO_ERROR;
|
|
int32_t len = 0;
|
|
const UChar *value = ures_getStringByKeyWithFallback(rbTable, KEYS[i], &len, &status);
|
|
if (U_FAILURE(status) || len == 0) {
|
|
names[i] = NULL;
|
|
} else {
|
|
names[i] = value;
|
|
isEmpty = FALSE;
|
|
}
|
|
}
|
|
if (isEmpty) {
|
|
// No need to keep the names array
|
|
uprv_free(names);
|
|
names = NULL;
|
|
}
|
|
}
|
|
|
|
if (names != NULL) {
|
|
status = U_ZERO_ERROR;
|
|
UResourceBundle* cuRes = ures_getByKeyWithFallback(rbTable, gCuTag, NULL, &status);
|
|
int32_t cu = ures_getInt(cuRes, &status);
|
|
if (U_SUCCESS(status)) {
|
|
shortCommonlyUsed = (cu != 0);
|
|
}
|
|
ures_close(cuRes);
|
|
}
|
|
}
|
|
ures_close(rbTable);
|
|
return names;
|
|
}
|
|
|
|
// ---------------------------------------------------
|
|
// TZNames - names for a time zone
|
|
// ---------------------------------------------------
|
|
class TZNames : public ZNames {
|
|
public:
|
|
virtual ~TZNames();
|
|
|
|
static TZNames* createInstance(UResourceBundle* rb, const char* key);
|
|
const UChar* getLocationName(void);
|
|
|
|
private:
|
|
TZNames(const UChar** names, UBool shortCommonlyUsed, const UChar* locationName);
|
|
const UChar* fLocationName;
|
|
};
|
|
|
|
TZNames::TZNames(const UChar** names, UBool shortCommonlyUsed, const UChar* locationName)
|
|
: ZNames(names, shortCommonlyUsed), fLocationName(locationName) {
|
|
}
|
|
|
|
TZNames::~TZNames() {
|
|
}
|
|
|
|
const UChar*
|
|
TZNames::getLocationName() {
|
|
return fLocationName;
|
|
}
|
|
|
|
TZNames*
|
|
TZNames::createInstance(UResourceBundle* rb, const char* key) {
|
|
if (rb == NULL || key == NULL || *key == 0) {
|
|
return NULL;
|
|
}
|
|
TZNames* tznames = NULL;
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
UResourceBundle* rbTable = ures_getByKeyWithFallback(rb, key, NULL, &status);
|
|
if (U_SUCCESS(status)) {
|
|
int32_t len = 0;
|
|
const UChar* locationName = ures_getStringByKeyWithFallback(rbTable, gEcTag, &len, &status);
|
|
if (U_FAILURE(status) || len == 0) {
|
|
locationName = NULL;
|
|
}
|
|
|
|
UBool shortCommonlyUsed = FALSE;
|
|
const UChar** names = loadData(rb, key, shortCommonlyUsed);
|
|
|
|
if (locationName != NULL || names != NULL) {
|
|
tznames = new TZNames(names, shortCommonlyUsed, locationName);
|
|
}
|
|
}
|
|
ures_close(rbTable);
|
|
return tznames;
|
|
}
|
|
|
|
// ---------------------------------------------------
|
|
// The meta zone ID enumeration class
|
|
// ---------------------------------------------------
|
|
class MetaZoneIDsEnumeration : public StringEnumeration {
|
|
public:
|
|
MetaZoneIDsEnumeration();
|
|
MetaZoneIDsEnumeration(const UVector& mzIDs);
|
|
MetaZoneIDsEnumeration(UVector* mzIDs);
|
|
virtual ~MetaZoneIDsEnumeration();
|
|
static UClassID U_EXPORT2 getStaticClassID(void);
|
|
virtual UClassID getDynamicClassID(void) const;
|
|
virtual const UnicodeString* snext(UErrorCode& status);
|
|
virtual void reset(UErrorCode& status);
|
|
virtual int32_t count(UErrorCode& status) const;
|
|
private:
|
|
int32_t fLen;
|
|
int32_t fPos;
|
|
const UVector* fMetaZoneIDs;
|
|
UVector *fLocalVector;
|
|
};
|
|
|
|
UOBJECT_DEFINE_RTTI_IMPLEMENTATION(MetaZoneIDsEnumeration)
|
|
|
|
MetaZoneIDsEnumeration::MetaZoneIDsEnumeration()
|
|
: fLen(0), fPos(0), fMetaZoneIDs(NULL), fLocalVector(NULL) {
|
|
}
|
|
|
|
MetaZoneIDsEnumeration::MetaZoneIDsEnumeration(const UVector& mzIDs)
|
|
: fPos(0), fMetaZoneIDs(&mzIDs), fLocalVector(NULL) {
|
|
fLen = fMetaZoneIDs->size();
|
|
}
|
|
|
|
MetaZoneIDsEnumeration::MetaZoneIDsEnumeration(UVector *mzIDs)
|
|
: fLen(0), fPos(0), fMetaZoneIDs(mzIDs), fLocalVector(mzIDs) {
|
|
if (fMetaZoneIDs) {
|
|
fLen = fMetaZoneIDs->size();
|
|
}
|
|
}
|
|
|
|
const UnicodeString*
|
|
MetaZoneIDsEnumeration::snext(UErrorCode& status) {
|
|
if (U_SUCCESS(status) && fMetaZoneIDs != NULL && fPos < fLen) {
|
|
unistr.setTo((const UChar*)fMetaZoneIDs->elementAt(fPos++));
|
|
return &unistr;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
MetaZoneIDsEnumeration::reset(UErrorCode& /*status*/) {
|
|
fPos = 0;
|
|
}
|
|
|
|
int32_t
|
|
MetaZoneIDsEnumeration::count(UErrorCode& /*status*/) const {
|
|
return fLen;
|
|
}
|
|
|
|
MetaZoneIDsEnumeration::~MetaZoneIDsEnumeration() {
|
|
if (fLocalVector) {
|
|
delete fLocalVector;
|
|
}
|
|
}
|
|
|
|
U_CDECL_BEGIN
|
|
/**
|
|
* ZNameInfo stores zone name information in the trie
|
|
*/
|
|
typedef struct ZNameInfo {
|
|
UTimeZoneNameType type;
|
|
const UChar* tzID;
|
|
const UChar* mzID;
|
|
} ZNameInfo;
|
|
|
|
/**
|
|
* ZMatchInfo stores zone name match information used by find method
|
|
*/
|
|
typedef struct ZMatchInfo {
|
|
const ZNameInfo* znameInfo;
|
|
int32_t matchLength;
|
|
} ZMatchInfo;
|
|
U_CDECL_END
|
|
|
|
// ---------------------------------------------------
|
|
// The class stores time zone name match information
|
|
// ---------------------------------------------------
|
|
class TimeZoneNameMatchInfoImpl : public TimeZoneNameMatchInfo {
|
|
public:
|
|
TimeZoneNameMatchInfoImpl(UVector* matches);
|
|
~TimeZoneNameMatchInfoImpl();
|
|
|
|
int32_t size() const;
|
|
UTimeZoneNameType getNameType(int32_t index) const;
|
|
int32_t getMatchLength(int32_t index) const;
|
|
UnicodeString& getTimeZoneID(int32_t index, UnicodeString& tzID) const;
|
|
UnicodeString& getMetaZoneID(int32_t index, UnicodeString& mzID) const;
|
|
|
|
private:
|
|
UVector* fMatches; // vector of MatchEntry
|
|
};
|
|
|
|
TimeZoneNameMatchInfoImpl::TimeZoneNameMatchInfoImpl(UVector* matches)
|
|
: fMatches(matches) {
|
|
}
|
|
|
|
TimeZoneNameMatchInfoImpl::~TimeZoneNameMatchInfoImpl() {
|
|
if (fMatches != NULL) {
|
|
delete fMatches;
|
|
}
|
|
}
|
|
|
|
int32_t
|
|
TimeZoneNameMatchInfoImpl::size() const {
|
|
if (fMatches == NULL) {
|
|
return 0;
|
|
}
|
|
return fMatches->size();
|
|
}
|
|
|
|
UTimeZoneNameType
|
|
TimeZoneNameMatchInfoImpl::getNameType(int32_t index) const {
|
|
ZMatchInfo *minfo = (ZMatchInfo *)fMatches->elementAt(index);
|
|
if (minfo != NULL) {
|
|
return minfo->znameInfo->type;
|
|
}
|
|
return UTZNM_UNKNOWN;
|
|
}
|
|
|
|
int32_t
|
|
TimeZoneNameMatchInfoImpl::getMatchLength(int32_t index) const {
|
|
ZMatchInfo *minfo = (ZMatchInfo *)fMatches->elementAt(index);
|
|
if (minfo != NULL) {
|
|
return minfo->matchLength;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
UnicodeString&
|
|
TimeZoneNameMatchInfoImpl::getTimeZoneID(int32_t index, UnicodeString& tzID) const {
|
|
ZMatchInfo *minfo = (ZMatchInfo *)fMatches->elementAt(index);
|
|
if (minfo != NULL && minfo->znameInfo->tzID != NULL) {
|
|
tzID.setTo(TRUE, minfo->znameInfo->tzID, -1);
|
|
} else {
|
|
tzID.setToBogus();
|
|
}
|
|
return tzID;
|
|
}
|
|
|
|
UnicodeString&
|
|
TimeZoneNameMatchInfoImpl::getMetaZoneID(int32_t index, UnicodeString& mzID) const {
|
|
ZMatchInfo *minfo = (ZMatchInfo *)fMatches->elementAt(index);
|
|
if (minfo != NULL && minfo->znameInfo->mzID != NULL) {
|
|
mzID.setTo(TRUE, minfo->znameInfo->mzID, -1);
|
|
} else {
|
|
mzID.setToBogus();
|
|
}
|
|
return mzID;
|
|
}
|
|
|
|
// ---------------------------------------------------
|
|
// ZNameSearchHandler
|
|
// ---------------------------------------------------
|
|
class ZNameSearchHandler : public TextTrieMapSearchResultHandler {
|
|
public:
|
|
ZNameSearchHandler(uint32_t types);
|
|
virtual ~ZNameSearchHandler();
|
|
|
|
UBool handleMatch(int32_t matchLength, const CharacterNode *node, UErrorCode &status);
|
|
UVector* getMatches(int32_t& maxMatchLen);
|
|
|
|
private:
|
|
uint32_t fTypes;
|
|
UVector* fResults;
|
|
int32_t fMaxMatchLen;
|
|
};
|
|
|
|
ZNameSearchHandler::ZNameSearchHandler(uint32_t types)
|
|
: fTypes(types), fResults(NULL), fMaxMatchLen(0) {
|
|
}
|
|
|
|
ZNameSearchHandler::~ZNameSearchHandler() {
|
|
if (fResults != NULL) {
|
|
delete fResults;
|
|
}
|
|
}
|
|
|
|
UBool
|
|
ZNameSearchHandler::handleMatch(int32_t matchLength, const CharacterNode *node, UErrorCode &status) {
|
|
if (U_FAILURE(status)) {
|
|
return FALSE;
|
|
}
|
|
if (node->hasValues()) {
|
|
int32_t valuesCount = node->countValues();
|
|
for (int32_t i = 0; i < valuesCount; i++) {
|
|
ZNameInfo *nameinfo = (ZNameInfo *)node->getValue(i);
|
|
if (nameinfo == NULL) {
|
|
break;
|
|
}
|
|
if ((nameinfo->type & fTypes) != 0) {
|
|
// matches a requested type
|
|
if (fResults == NULL) {
|
|
fResults = new UVector(uhash_freeBlock, NULL, status);
|
|
if (fResults == NULL) {
|
|
status = U_MEMORY_ALLOCATION_ERROR;
|
|
}
|
|
}
|
|
if (U_SUCCESS(status)) {
|
|
ZMatchInfo *zmatch = (ZMatchInfo *)uprv_malloc(sizeof(ZMatchInfo));
|
|
if (zmatch == NULL) {
|
|
status = U_MEMORY_ALLOCATION_ERROR;
|
|
} else {
|
|
// add the match to the vector
|
|
zmatch->znameInfo = nameinfo;
|
|
zmatch->matchLength = matchLength;
|
|
fResults->addElement(zmatch, status);
|
|
if (U_FAILURE(status)) {
|
|
uprv_free(zmatch);
|
|
} else {
|
|
if (matchLength > fMaxMatchLen) {
|
|
fMaxMatchLen = matchLength;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
UVector*
|
|
ZNameSearchHandler::getMatches(int32_t& maxMatchLen) {
|
|
// give the ownership to the caller
|
|
UVector *results = fResults;
|
|
maxMatchLen = fMaxMatchLen;
|
|
|
|
// reset
|
|
fResults = NULL;
|
|
fMaxMatchLen = 0;
|
|
return results;
|
|
}
|
|
|
|
// ---------------------------------------------------
|
|
// TimeZoneNamesImpl
|
|
//
|
|
// TimeZoneNames implementation class. This is the main
|
|
// part of this module.
|
|
// ---------------------------------------------------
|
|
|
|
U_CDECL_BEGIN
|
|
/**
|
|
* Deleter for ZNames
|
|
*/
|
|
static void U_CALLCONV
|
|
deleteZNames(void *obj) {
|
|
if (obj != EMPTY) {
|
|
delete (ZNames *)obj;
|
|
}
|
|
}
|
|
/**
|
|
* Deleter for TZNames
|
|
*/
|
|
static void U_CALLCONV
|
|
deleteTZNames(void *obj) {
|
|
if (obj != EMPTY) {
|
|
delete (TZNames *)obj;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Deleter for ZNameInfo
|
|
*/
|
|
static void U_CALLCONV
|
|
deleteZNameInfo(void *obj) {
|
|
uprv_free(obj);
|
|
}
|
|
|
|
U_CDECL_END
|
|
|
|
TimeZoneNamesImpl::TimeZoneNamesImpl(const Locale& locale, UErrorCode& status)
|
|
: fLocale(locale),
|
|
fLock(NULL),
|
|
fZoneStrings(NULL),
|
|
fTZNamesMap(NULL),
|
|
fMZNamesMap(NULL),
|
|
fNamesTrieFullyLoaded(FALSE),
|
|
fNamesTrie(TRUE, deleteZNameInfo) {
|
|
initialize(locale, status);
|
|
}
|
|
|
|
void
|
|
TimeZoneNamesImpl::initialize(const Locale& locale, UErrorCode& status) {
|
|
if (U_FAILURE(status)) {
|
|
return;
|
|
}
|
|
|
|
// Load zoneStrings bundle
|
|
UErrorCode tmpsts = U_ZERO_ERROR; // OK with fallback warning..
|
|
fZoneStrings = ures_open(U_ICUDATA_ZONE, locale.getName(), &tmpsts);
|
|
fZoneStrings = ures_getByKeyWithFallback(fZoneStrings, gZoneStrings, fZoneStrings, &tmpsts);
|
|
if (U_FAILURE(tmpsts)) {
|
|
status = tmpsts;
|
|
cleanup();
|
|
return;
|
|
}
|
|
|
|
// Initialize hashtables holding time zone/meta zone names
|
|
fMZNamesMap = uhash_open(uhash_hashUChars, uhash_compareUChars, NULL, &status);
|
|
fTZNamesMap = uhash_open(uhash_hashUChars, uhash_compareUChars, NULL, &status);
|
|
if (U_FAILURE(status)) {
|
|
cleanup();
|
|
return;
|
|
}
|
|
|
|
uhash_setValueDeleter(fMZNamesMap, deleteZNames);
|
|
uhash_setValueDeleter(fTZNamesMap, deleteTZNames);
|
|
// no key deleters for name maps
|
|
|
|
// preload zone strings for the default zone
|
|
TimeZone *tz = TimeZone::createDefault();
|
|
const UChar *tzID = ZoneMeta::getCanonicalCLDRID(*tz);
|
|
if (tzID != NULL) {
|
|
loadStrings(UnicodeString(tzID));
|
|
}
|
|
delete tz;
|
|
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* This method updates the cache and must be called with a lock,
|
|
* except initializer.
|
|
*/
|
|
void
|
|
TimeZoneNamesImpl::loadStrings(const UnicodeString& tzCanonicalID) {
|
|
loadTimeZoneNames(tzCanonicalID);
|
|
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
StringEnumeration *mzIDs = getAvailableMetaZoneIDs(tzCanonicalID, status);
|
|
if (U_SUCCESS(status) && mzIDs != NULL) {
|
|
const UnicodeString *mzID;
|
|
while ((mzID = mzIDs->snext(status))) {
|
|
if (U_FAILURE(status)) {
|
|
break;
|
|
}
|
|
loadMetaZoneNames(*mzID);
|
|
}
|
|
delete mzIDs;
|
|
}
|
|
}
|
|
|
|
TimeZoneNamesImpl::~TimeZoneNamesImpl() {
|
|
cleanup();
|
|
umtx_destroy(&fLock);
|
|
}
|
|
|
|
void
|
|
TimeZoneNamesImpl::cleanup() {
|
|
if (fZoneStrings != NULL) {
|
|
ures_close(fZoneStrings);
|
|
fZoneStrings = NULL;
|
|
}
|
|
if (fMZNamesMap != NULL) {
|
|
uhash_close(fMZNamesMap);
|
|
fMZNamesMap = NULL;
|
|
}
|
|
if (fTZNamesMap != NULL) {
|
|
uhash_close(fTZNamesMap);
|
|
fTZNamesMap = NULL;
|
|
}
|
|
}
|
|
|
|
StringEnumeration*
|
|
TimeZoneNamesImpl::getAvailableMetaZoneIDs(UErrorCode& status) const {
|
|
if (U_FAILURE(status)) {
|
|
return NULL;
|
|
}
|
|
const UVector* mzIDs = ZoneMeta::getAvailableMetazoneIDs();
|
|
if (mzIDs == NULL) {
|
|
return new MetaZoneIDsEnumeration();
|
|
}
|
|
return new MetaZoneIDsEnumeration(*mzIDs);
|
|
}
|
|
|
|
StringEnumeration*
|
|
TimeZoneNamesImpl::getAvailableMetaZoneIDs(const UnicodeString& tzID, UErrorCode& status) const {
|
|
if (U_FAILURE(status)) {
|
|
return NULL;
|
|
}
|
|
const UVector* mappings = ZoneMeta::getMetazoneMappings(tzID);
|
|
if (mappings == NULL) {
|
|
return new MetaZoneIDsEnumeration();
|
|
}
|
|
|
|
MetaZoneIDsEnumeration *senum = NULL;
|
|
UVector* mzIDs = new UVector(NULL, uhash_compareUChars, status);
|
|
if (mzIDs == NULL) {
|
|
status = U_MEMORY_ALLOCATION_ERROR;
|
|
}
|
|
if (U_SUCCESS(status)) {
|
|
for (int32_t i = 0; U_SUCCESS(status) && i < mappings->size(); i++) {
|
|
|
|
OlsonToMetaMappingEntry *map = (OlsonToMetaMappingEntry *)mappings->elementAt(i);
|
|
const UChar *mzID = map->mzid;
|
|
if (!mzIDs->contains((void *)mzID)) {
|
|
mzIDs->addElement((void *)mzID, status);
|
|
}
|
|
}
|
|
if (U_SUCCESS(status)) {
|
|
senum = new MetaZoneIDsEnumeration(mzIDs);
|
|
} else {
|
|
delete mzIDs;
|
|
}
|
|
}
|
|
return senum;
|
|
}
|
|
|
|
UnicodeString&
|
|
TimeZoneNamesImpl::getMetaZoneID(const UnicodeString& tzID, UDate date, UnicodeString& mzID) const {
|
|
ZoneMeta::getMetazoneID(tzID, date, mzID);
|
|
return mzID;
|
|
}
|
|
|
|
UnicodeString&
|
|
TimeZoneNamesImpl::getReferenceZoneID(const UnicodeString& mzID, const char* region, UnicodeString& tzID) const {
|
|
ZoneMeta::getZoneIdByMetazone(mzID, UnicodeString(region), tzID);
|
|
return tzID;
|
|
}
|
|
|
|
UnicodeString&
|
|
TimeZoneNamesImpl::getMetaZoneDisplayName(const UnicodeString& mzID,
|
|
UTimeZoneNameType type,
|
|
UnicodeString& name) const {
|
|
name.setToBogus(); // cleanup result.
|
|
if (mzID.isEmpty()) {
|
|
return name;
|
|
}
|
|
|
|
ZNames *znames = NULL;
|
|
TimeZoneNamesImpl *nonConstThis = const_cast<TimeZoneNamesImpl *>(this);
|
|
|
|
umtx_lock(&nonConstThis->fLock);
|
|
{
|
|
znames = nonConstThis->loadMetaZoneNames(mzID);
|
|
}
|
|
umtx_unlock(&nonConstThis->fLock);
|
|
|
|
if (znames != NULL) {
|
|
const UChar* s = znames->getName(type);
|
|
if (s != NULL) {
|
|
name.setTo(TRUE, s, -1);
|
|
}
|
|
}
|
|
return name;
|
|
}
|
|
|
|
UnicodeString&
|
|
TimeZoneNamesImpl::getTimeZoneDisplayName(const UnicodeString& tzID, UTimeZoneNameType type, UnicodeString& name) const {
|
|
name.setToBogus(); // cleanup result.
|
|
if (tzID.isEmpty()) {
|
|
return name;
|
|
}
|
|
|
|
TZNames *tznames = NULL;
|
|
TimeZoneNamesImpl *nonConstThis = const_cast<TimeZoneNamesImpl *>(this);
|
|
|
|
umtx_lock(&nonConstThis->fLock);
|
|
{
|
|
tznames = nonConstThis->loadTimeZoneNames(tzID);
|
|
}
|
|
umtx_unlock(&nonConstThis->fLock);
|
|
|
|
if (tznames != NULL) {
|
|
const UChar *s = tznames->getName(type);
|
|
if (s != NULL) {
|
|
name.setTo(TRUE, s, -1);
|
|
}
|
|
}
|
|
return name;
|
|
}
|
|
|
|
UnicodeString&
|
|
TimeZoneNamesImpl::getExemplarLocationName(const UnicodeString& tzID, UnicodeString& name) const {
|
|
const UChar* locName = NULL;
|
|
TZNames *tznames = NULL;
|
|
TimeZoneNamesImpl *nonConstThis = const_cast<TimeZoneNamesImpl *>(this);
|
|
|
|
umtx_lock(&nonConstThis->fLock);
|
|
{
|
|
tznames = nonConstThis->loadTimeZoneNames(tzID);
|
|
}
|
|
umtx_unlock(&nonConstThis->fLock);
|
|
|
|
if (tznames != NULL) {
|
|
locName = tznames->getLocationName();
|
|
}
|
|
if (locName != NULL) {
|
|
name.setTo(TRUE, locName, -1);
|
|
return name;
|
|
}
|
|
|
|
return TimeZoneNames::getExemplarLocationName(tzID, name);
|
|
}
|
|
|
|
|
|
// Merge the MZ_PREFIX and mzId
|
|
static void mergeTimeZoneKey(const UnicodeString& mzID, char* result) {
|
|
if (mzID.isEmpty()) {
|
|
result[0] = '\0';
|
|
return;
|
|
}
|
|
|
|
char mzIdChar[ZID_KEY_MAX + 1];
|
|
int32_t keyLen;
|
|
int32_t prefixLen = uprv_strlen(gMZPrefix);
|
|
keyLen = mzID.extract(0, mzID.length(), mzIdChar, ZID_KEY_MAX + 1, US_INV);
|
|
uprv_memcpy((void *)result, (void *)gMZPrefix, prefixLen);
|
|
uprv_memcpy((void *)(result + prefixLen), (void *)mzIdChar, keyLen);
|
|
result[keyLen + prefixLen] = '\0';
|
|
}
|
|
|
|
/*
|
|
* This method updates the cache and must be called with a lock
|
|
*/
|
|
ZNames*
|
|
TimeZoneNamesImpl::loadMetaZoneNames(const UnicodeString& mzID) {
|
|
if (mzID.length() > (ZID_KEY_MAX - MZ_PREFIX_LEN)) {
|
|
return NULL;
|
|
}
|
|
|
|
ZNames *znames = NULL;
|
|
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
UChar mzIDKey[ZID_KEY_MAX + 1];
|
|
mzID.extract(mzIDKey, ZID_KEY_MAX + 1, status);
|
|
U_ASSERT(status == U_ZERO_ERROR); // already checked length above
|
|
mzIDKey[mzID.length()] = 0;
|
|
|
|
void *cacheVal = uhash_get(fMZNamesMap, mzIDKey);
|
|
if (cacheVal == NULL) {
|
|
char key[ZID_KEY_MAX + 1];
|
|
mergeTimeZoneKey(mzID, key);
|
|
znames = ZNames::createInstance(fZoneStrings, key);
|
|
|
|
if (znames == NULL) {
|
|
cacheVal = (void *)EMPTY;
|
|
} else {
|
|
cacheVal = znames;
|
|
}
|
|
// Use the persistent ID as the resource key, so we can
|
|
// avoid duplications.
|
|
const UChar* newKey = ZoneMeta::findMetaZoneID(mzID);
|
|
if (newKey != NULL) {
|
|
uhash_put(fMZNamesMap, (void *)newKey, cacheVal, &status);
|
|
if (U_FAILURE(status)) {
|
|
if (znames != NULL) {
|
|
delete znames;
|
|
}
|
|
} else if (znames != NULL) {
|
|
// put the name info into the trie
|
|
for (int32_t i = 0; ALL_NAME_TYPES[i] != UTZNM_UNKNOWN; i++) {
|
|
const UChar* name = znames->getName(ALL_NAME_TYPES[i]);
|
|
if (name != NULL) {
|
|
ZNameInfo *nameinfo = (ZNameInfo *)uprv_malloc(sizeof(ZNameInfo));
|
|
if (nameinfo != NULL) {
|
|
nameinfo->type = ALL_NAME_TYPES[i];
|
|
nameinfo->tzID = NULL;
|
|
nameinfo->mzID = newKey;
|
|
fNamesTrie.put(name, nameinfo, status);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
} else {
|
|
// Should never happen with a valid input
|
|
if (znames != NULL) {
|
|
// It's not possible that we get a valid ZNames with unknown ID.
|
|
// But just in case..
|
|
delete znames;
|
|
znames = NULL;
|
|
}
|
|
}
|
|
} else if (cacheVal != EMPTY) {
|
|
znames = (ZNames *)cacheVal;
|
|
}
|
|
|
|
return znames;
|
|
}
|
|
|
|
/*
|
|
* This method updates the cache and must be called with a lock
|
|
*/
|
|
TZNames*
|
|
TimeZoneNamesImpl::loadTimeZoneNames(const UnicodeString& tzID) {
|
|
if (tzID.length() > ZID_KEY_MAX) {
|
|
return NULL;
|
|
}
|
|
|
|
TZNames *tznames = NULL;
|
|
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
UChar tzIDKey[ZID_KEY_MAX + 1];
|
|
int32_t tzIDKeyLen = tzID.extract(tzIDKey, ZID_KEY_MAX + 1, status);
|
|
U_ASSERT(status == U_ZERO_ERROR); // already checked length above
|
|
tzIDKey[tzIDKeyLen] = 0;
|
|
|
|
void *cacheVal = uhash_get(fTZNamesMap, tzIDKey);
|
|
if (cacheVal == NULL) {
|
|
char key[ZID_KEY_MAX + 1];
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
// Replace "/" with ":".
|
|
UnicodeString uKey(tzID);
|
|
for (int32_t i = 0; i < uKey.length(); i++) {
|
|
if (uKey.charAt(i) == (UChar)0x2F) {
|
|
uKey.setCharAt(i, (UChar)0x3A);
|
|
}
|
|
}
|
|
uKey.extract(0, uKey.length(), key, sizeof(key), US_INV);
|
|
tznames = TZNames::createInstance(fZoneStrings, key);
|
|
|
|
if (tznames == NULL) {
|
|
cacheVal = (void *)EMPTY;
|
|
} else {
|
|
cacheVal = tznames;
|
|
}
|
|
// Use the persistent ID as the resource key, so we can
|
|
// avoid duplications.
|
|
const UChar* newKey = ZoneMeta::findTimeZoneID(tzID);
|
|
if (newKey != NULL) {
|
|
uhash_put(fTZNamesMap, (void *)newKey, cacheVal, &status);
|
|
if (U_FAILURE(status)) {
|
|
if (tznames != NULL) {
|
|
delete tznames;
|
|
}
|
|
} else if (tznames != NULL) {
|
|
// put the name info into the trie
|
|
for (int32_t i = 0; ALL_NAME_TYPES[i] != UTZNM_UNKNOWN; i++) {
|
|
const UChar* name = tznames->getName(ALL_NAME_TYPES[i]);
|
|
if (name != NULL) {
|
|
ZNameInfo *nameinfo = (ZNameInfo *)uprv_malloc(sizeof(ZNameInfo));
|
|
if (nameinfo != NULL) {
|
|
nameinfo->type = ALL_NAME_TYPES[i];
|
|
nameinfo->tzID = newKey;
|
|
nameinfo->mzID = NULL;
|
|
fNamesTrie.put(name, nameinfo, status);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
// Should never happen with a valid input
|
|
if (tznames != NULL) {
|
|
// It's not possible that we get a valid TZNames with unknown ID.
|
|
// But just in case..
|
|
delete tznames;
|
|
tznames = NULL;
|
|
}
|
|
}
|
|
} else if (cacheVal != EMPTY) {
|
|
tznames = (TZNames *)cacheVal;
|
|
}
|
|
|
|
return tznames;
|
|
}
|
|
|
|
TimeZoneNameMatchInfo*
|
|
TimeZoneNamesImpl::find(const UnicodeString& text, int32_t start, uint32_t types, UErrorCode& status) const {
|
|
ZNameSearchHandler handler(types);
|
|
|
|
TimeZoneNamesImpl *nonConstThis = const_cast<TimeZoneNamesImpl *>(this);
|
|
|
|
umtx_lock(&nonConstThis->fLock);
|
|
{
|
|
fNamesTrie.search(text, start, (TextTrieMapSearchResultHandler *)&handler, status);
|
|
}
|
|
umtx_unlock(&nonConstThis->fLock);
|
|
|
|
if (U_FAILURE(status)) {
|
|
return NULL;
|
|
}
|
|
|
|
TimeZoneNameMatchInfoImpl *matchInfo = NULL;
|
|
|
|
int32_t maxLen = 0;
|
|
UVector *results = handler.getMatches(maxLen);
|
|
if ((results != NULL && (maxLen == (text.length() - start))) || fNamesTrieFullyLoaded) {
|
|
// perfect match
|
|
matchInfo = new TimeZoneNameMatchInfoImpl(results);
|
|
if (matchInfo == NULL) {
|
|
status = U_MEMORY_ALLOCATION_ERROR;
|
|
delete results;
|
|
return NULL;
|
|
}
|
|
return matchInfo;
|
|
}
|
|
|
|
if (results != NULL) {
|
|
delete results;
|
|
}
|
|
|
|
// All names are not yet loaded into the trie
|
|
umtx_lock(&nonConstThis->fLock);
|
|
{
|
|
if (!fNamesTrieFullyLoaded) {
|
|
const UnicodeString *id;
|
|
|
|
// load strings for all zones
|
|
StringEnumeration *tzIDs = TimeZone::createTimeZoneIDEnumeration(UCAL_ZONE_TYPE_CANONICAL, NULL, NULL, status);
|
|
if (U_SUCCESS(status)) {
|
|
while ((id = tzIDs->snext(status))) {
|
|
if (U_FAILURE(status)) {
|
|
break;
|
|
}
|
|
// loadStrings also load related metazone strings
|
|
nonConstThis->loadStrings(*id);
|
|
}
|
|
}
|
|
if (tzIDs != NULL) {
|
|
delete tzIDs;
|
|
}
|
|
if (U_SUCCESS(status)) {
|
|
nonConstThis->fNamesTrieFullyLoaded = TRUE;
|
|
}
|
|
}
|
|
}
|
|
umtx_unlock(&nonConstThis->fLock);
|
|
|
|
if (U_FAILURE(status)) {
|
|
return NULL;
|
|
}
|
|
|
|
umtx_lock(&nonConstThis->fLock);
|
|
{
|
|
// now try it again
|
|
fNamesTrie.search(text, start, (TextTrieMapSearchResultHandler *)&handler, status);
|
|
}
|
|
umtx_unlock(&nonConstThis->fLock);
|
|
|
|
results = handler.getMatches(maxLen);
|
|
if (results != NULL && maxLen > 0) {
|
|
matchInfo = new TimeZoneNameMatchInfoImpl(results);
|
|
if (matchInfo == NULL) {
|
|
status = U_MEMORY_ALLOCATION_ERROR;
|
|
delete results;
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
return matchInfo;
|
|
}
|
|
|
|
UnicodeString& getTZCanonicalID(const TimeZone& tz, UnicodeString& canonicalID) {
|
|
if (dynamic_cast<const OlsonTimeZone *>(&tz) != NULL) {
|
|
// short cut for OlsonTimeZone
|
|
const OlsonTimeZone *otz = (const OlsonTimeZone*)&tz;
|
|
const UChar* uID = otz->getCanonicalID();
|
|
if (uID != NULL) {
|
|
canonicalID.setTo(TRUE, uID, -1);
|
|
} else {
|
|
canonicalID.setToBogus();
|
|
}
|
|
} else {
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
UnicodeString tzID;
|
|
ZoneMeta::getCanonicalCLDRID(tz.getID(tzID), canonicalID, status);
|
|
if (U_FAILURE(status)) {
|
|
canonicalID.setToBogus();
|
|
}
|
|
}
|
|
return canonicalID;
|
|
}
|
|
|
|
|
|
U_NAMESPACE_END
|
|
|
|
|
|
#endif /* #if !UCONFIG_NO_FORMATTING */
|
|
|
|
//eof
|