C++ Hashtable::get方法代码示例

const Hashtable*
LocaleUtility::getAvailableLocaleNames(const UnicodeString& bundleID)
{
    // LocaleUtility_cache is a hash-of-hashes.  The top-level keys
    // are path strings ('bundleID') passed to
    // ures_openAvailableLocales.  The top-level values are
    // second-level hashes.  The second-level keys are result strings
    // from ures_openAvailableLocales.  The second-level values are
    // garbage ((void*)1 or other random pointer).

    UErrorCode status = U_ZERO_ERROR;
    umtx_initOnce(LocaleUtilityInitOnce, locale_utility_init, status);
    Hashtable *cache = LocaleUtility_cache;
    if (cache == NULL) {
        // Catastrophic failure.
        return NULL;
    }

    Hashtable* htp;
    umtx_lock(NULL);
    htp = (Hashtable*) cache->get(bundleID);
    umtx_unlock(NULL);

    if (htp == NULL) {
        htp = new Hashtable(status);
        if (htp && U_SUCCESS(status)) {
            CharString cbundleID;
            cbundleID.appendInvariantChars(bundleID, status);
            const char* path = cbundleID.isEmpty() ? NULL : cbundleID.data();
            UEnumeration *uenum = ures_openAvailableLocales(path, &status);
            for (;;) {
                const UChar* id = uenum_unext(uenum, NULL, &status);
                if (id == NULL) {
                    break;
                }
                htp->put(UnicodeString(id), (void*)htp, status);
            }
            uenum_close(uenum);
            if (U_FAILURE(status)) {
                delete htp;
                return NULL;
            }
            umtx_lock(NULL);
            Hashtable *t = static_cast<Hashtable *>(cache->get(bundleID));
            if (t != NULL) {
                // Another thread raced through this code, creating the cache entry first.
                // Discard ours and return theirs.
                umtx_unlock(NULL);
                delete htp;
                htp = t;
            } else {
                cache->put(bundleID, (void*)htp, status);
                umtx_unlock(NULL);
            }
        }
    }
    return htp;
}

static size_t curlHeaderCallback(void *ptr, size_t size, size_t nmemb, void *opaque)
{
    Hashtable<String,String>* pHeaders = (Hashtable<String,String>*)opaque;
    size_t nBytes = size*nmemb;
    String strHeader((const char *)ptr, nBytes);
    RAWTRACE1("Received header: %s", strHeader.c_str());
    
    int nSep = strHeader.find(':');
    if (nSep > 0 )
    {		
        String strName = String_trim(strHeader.substr(0, nSep));
        String lName;
        std::transform(strName.begin(), strName.end(), std::back_inserter(lName), &::tolower);
        
        String strValue = String_trim(strHeader.substr(nSep+1, strHeader.length() - (nSep+3) ));
        
        if ( pHeaders->containsKey(lName) )
        {
            strValue += ";" + pHeaders->get( lName );
            pHeaders->put( lName, strValue );
        }
        else
            pHeaders->put(lName, strValue);
    }
    
    return nBytes;
}

static super_t known_wins(int depth, board_t board) {
  check_board(board);
  symmetry_t symmetry;
  superstandardize(board).get(board,symmetry);
  superinfo_t info = known.get(tuple(depth,board));
  GEODE_ASSERT(!~info.known);
  return transform_super(symmetry.inverse(),info.wins);
}

void
TimeUnitFormat::checkConsistency(UTimeUnitFormatStyle style, const char* key, UErrorCode& err) {
    if (U_FAILURE(err)) {
        return;
    }
    // there should be patterns for each plural rule in each time unit.
    // For each time unit,
    //     for each plural rule, following is unit pattern fall-back rule:
    //         ( for example: "one" hour )
    //         look for its unit pattern in its locale tree.
    //         if pattern is not found in its own locale, such as de_DE,
    //         look for the pattern in its parent, such as de,
    //         keep looking till found or till root.
    //         if the pattern is not found in root either,
    //         fallback to plural count "other",
    //         look for the pattern of "other" in the locale tree:
    //         "de_DE" to "de" to "root".
    //         If not found, fall back to value of
    //         static variable DEFAULT_PATTERN_FOR_xxx, such as "{0} h".
    //
    // Following is consistency check to create pattern for each
    // plural rule in each time unit using above fall-back rule.
    //
    StringEnumeration* keywords = getPluralRules().getKeywords(err);
    if (U_SUCCESS(err)) {
        const UnicodeString* pluralCount;
        while ((pluralCount = keywords->snext(err)) != NULL) {
            if ( U_SUCCESS(err) ) {
                for (int32_t i = 0; i < TimeUnit::UTIMEUNIT_FIELD_COUNT; ++i) {
                    // for each time unit,
                    // get all the patterns for each plural rule in this locale.
                    Hashtable* countToPatterns = fTimeUnitToCountToPatterns[i];
                    if ( countToPatterns == NULL ) {
                        countToPatterns = initHash(err);
                        if (U_FAILURE(err)) {
                            delete countToPatterns;
                            return;
                        }
                        fTimeUnitToCountToPatterns[i] = countToPatterns;
                    }
                    MessageFormat** formatters = (MessageFormat**)countToPatterns->get(*pluralCount);
                    if( formatters == NULL || formatters[style] == NULL ) {
                        // look through parents
                        const char* localeName = getLocaleID(err);
                        CharString pluralCountChars;
                        pluralCountChars.appendInvariantChars(*pluralCount, err);
                        searchInLocaleChain(style, key, localeName,
                                            (TimeUnit::UTimeUnitFields)i,
                                            *pluralCount, pluralCountChars.data(),
                                            countToPatterns, err);
                    }
                }
            }
        }
    }
    delete keywords;
}

void printGlobalMetadata() {
  cout << endl;
  cout << "Reading global metadata" << endl;
  Hashtable meta = reader->getGlobalMetadata();
  StringArray keys = MetadataTools::keys(meta);
  for (int i=0; i<keys.length(); i++) {
    Object value = meta.get(keys[i]);
    cout << keys[i] << ": " << value << endl;
  }
}

int32_t TransliteratorRegistry::countAvailableVariants(const UnicodeString& source,
                                                       const UnicodeString& target) const {
    Hashtable *targets = (Hashtable*) specDAG.get(source);
    if (targets == 0) {
        return 0;
    }
    UVector *variants = (UVector*) targets->get(target);
    // variants may be 0 if the source/target are invalid
    return (variants == 0) ? 0 : variants->size();
}

UBool
SelectFormat::operator==(const Format& other) const {
    if( this == &other){
        return TRUE;
    }
    if( other.getDynamicClassID() != SelectFormat::getStaticClassID() ){
        return  FALSE;
    }
    SelectFormat* fmt = (SelectFormat*)&other;
    Hashtable* hashOther = fmt->parsedValuesHash;
    if ( parsedValuesHash == NULL && hashOther == NULL)
        return TRUE;
    if ( parsedValuesHash == NULL || hashOther == NULL)
        return FALSE;
    if ( hashOther->count() != parsedValuesHash->count() ){
        return FALSE;
    }

    const UHashElement* elem = NULL;
    int32_t pos = -1;
    while ((elem = hashOther->nextElement(pos)) != NULL) {
        const UHashTok otherKeyTok = elem->key;
        UnicodeString* otherKey = (UnicodeString*)otherKeyTok.pointer;
        const UHashTok otherKeyToVal = elem->value;
        UnicodeString* otherValue = (UnicodeString*)otherKeyToVal.pointer; 

        UnicodeString* thisElemValue = (UnicodeString*)parsedValuesHash->get(*otherKey);
        if ( thisElemValue == NULL ){
            return FALSE;
        }
        if ( *thisElemValue != *otherValue){
            return FALSE;
        }
        
    }
    pos = -1;
    while ((elem = parsedValuesHash->nextElement(pos)) != NULL) {
        const UHashTok thisKeyTok = elem->key;
        UnicodeString* thisKey = (UnicodeString*)thisKeyTok.pointer;
        const UHashTok thisKeyToVal = elem->value;
        UnicodeString* thisValue = (UnicodeString*)thisKeyToVal.pointer;

        UnicodeString* otherElemValue = (UnicodeString*)hashOther->get(*thisKey);
        if ( otherElemValue == NULL ){
            return FALSE;
        }
        if ( *otherElemValue != *thisValue){
            return FALSE;
        }

    }
    return TRUE;
}

UnicodeString&
CollatorInfo::getDisplayName(const Locale& displayLocale, UnicodeString& name) const {
  if (displayNames) {
    UnicodeString* val = (UnicodeString*)displayNames->get(displayLocale.getName());
    if (val) {
      name = *val;
      return name;
    }
  }

  return locale.getDisplayName(displayLocale, name);
}

bool rhom_method_name_isreserved(const String& strName)
{
    static Hashtable<String,int> reserved_names;
    if ( reserved_names.size() == 0 )
    {
        reserved_names.put("object",1);
        reserved_names.put("source_id",1);
        reserved_names.put("update_type",1);
        reserved_names.put("attrib_type",1);
        reserved_names.put("set_notification",1);
        reserved_names.put("clear_notification",1);
    }

    return reserved_names.get(strName) != 0;
}

int main() {
	Hashtable<int, int> hashtable;
	for (int i = 0; i < 100; i++) {
		hashtable.set(string("k") + to_string(i), i);
	}

	for (int i = 0; i < 100; i++) {
		hashtable.set(string("k") + to_string(i), 100);
	}

	for (int i = 0; i < 100; i++) {
		cout << i << ": " << hashtable.get(string("k") + to_string(i)) << endl;
	}

	return 0;
}

void printOriginalMetadata() {
  cout << endl;
  int seriesCount = reader->getSeriesCount();
  if (seriesCount > 1) {
    cout << "Reading series #" << series << " metadata" << endl;
  }
  else {
    cout << "Reading series metadata" << endl;
  }
  Hashtable meta = reader->getSeriesMetadata();
  StringArray keys = MetadataTools::keys(meta);
  for (int i=0; i<keys.length(); i++) {
    Object value = meta.get(keys[i]);
    cout << keys[i] << ": " << value << endl;
  }
}

/**
 * Register a source-target/variant in the specDAG.  Variant may be
 * empty, but source and target must not be.  If variant is empty then
 * the special variant NO_VARIANT is stored in slot zero of the
 * UVector of variants.
 */
void TransliteratorRegistry::registerSTV(const UnicodeString& source,
                                         const UnicodeString& target,
                                         const UnicodeString& variant) {
    // assert(source.length() > 0);
    // assert(target.length() > 0);
    UErrorCode status = U_ZERO_ERROR;
    Hashtable *targets = (Hashtable*) specDAG.get(source);
    if (targets == 0) {
        targets = new Hashtable(TRUE, status);
        if (U_FAILURE(status) || targets == 0) {
            return;
        }
        targets->setValueDeleter(uprv_deleteUObject);
        specDAG.put(source, targets, status);
    }
    UVector *variants = (UVector*) targets->get(target);
    if (variants == 0) {
        variants = new UVector(uprv_deleteUObject,
                               uhash_compareCaselessUnicodeString, status);
        if (variants == 0) {
            return;
        }
        targets->put(target, variants, status);
    }
    // assert(NO_VARIANT == "");
    // We add the variant string.  If it is the special "no variant"
    // string, that is, the empty string, we add it at position zero.
    if (!variants->contains((void*) &variant)) {
    	UnicodeString *tempus; // Used for null pointer check.
        if (variant.length() > 0) {
        	tempus = new UnicodeString(variant);
        	if (tempus != NULL) {
        		variants->addElement(tempus, status);
        	}
        } else {
        	tempus = new UnicodeString();  // = NO_VARIANT
        	if (tempus != NULL) {
        		variants->insertElementAt(tempus, 0, status);
        	}
        }
    }
}

/**
 * Remove a source-target/variant from the specDAG.
 */
void TransliteratorRegistry::removeSTV(const UnicodeString& source,
                                       const UnicodeString& target,
                                       const UnicodeString& variant) {
    // assert(source.length() > 0);
    // assert(target.length() > 0);
//    UErrorCode status = U_ZERO_ERROR;
    Hashtable *targets = (Hashtable*) specDAG.get(source);
    if (targets == 0) {
        return; // should never happen for valid s-t/v
    }
    UVector *variants = (UVector*) targets->get(target);
    if (variants == 0) {
        return; // should never happen for valid s-t/v
    }
    variants->removeElement((void*) &variant);
    if (variants->size() == 0) {
        targets->remove(target); // should delete variants
        if (targets->count() == 0) {
            specDAG.remove(source); // should delete targets
        }
    }
}

UnicodeString& TransliteratorRegistry::getAvailableVariant(int32_t index,
                                                           const UnicodeString& source,
                                                           const UnicodeString& target,
                                                           UnicodeString& result) const {
    Hashtable *targets = (Hashtable*) specDAG.get(source);
    if (targets == 0) {
        result.truncate(0); // invalid source
        return result;
    }
    UVector *variants = (UVector*) targets->get(target);
    if (variants == 0) {
        result.truncate(0); // invalid target
        return result;
    }
    UnicodeString *v = (UnicodeString*) variants->elementAt(index);
    if (v == 0) {
        result.truncate(0); // invalid index
    } else {
        result = *v;
    }
    return result;
}

UnicodeString& 
TimeUnitFormat::format(const Formattable& obj, UnicodeString& toAppendTo,
                       FieldPosition& pos, UErrorCode& status) const {
    if (U_FAILURE(status)) {
        return toAppendTo;
    }
    if (obj.getType() == Formattable::kObject) {
        const UObject* formatObj = obj.getObject();
        const TimeUnitAmount* amount = dynamic_cast<const TimeUnitAmount*>(formatObj);
        if (amount != NULL){
            Hashtable* countToPattern = fTimeUnitToCountToPatterns[amount->getTimeUnitField()];
            double number;
            const Formattable& amtNumber = amount->getNumber();
            if (amtNumber.getType() == Formattable::kDouble) {
                number = amtNumber.getDouble();
            } else if (amtNumber.getType() == Formattable::kLong) {
                number = amtNumber.getLong();
            } else {
                status = U_ILLEGAL_ARGUMENT_ERROR;
                return toAppendTo;
            }
            UnicodeString count = fPluralRules->select(number);
#ifdef TMUTFMT_DEBUG
            char result[1000];
            count.extract(0, count.length(), result, "UTF-8");
            std::cout << "number: " << number << "; format plural count: " << result << "\n";           
#endif
            MessageFormat* pattern = ((MessageFormat**)countToPattern->get(count))[fStyle];
            Formattable formattable[1];
            formattable[0].setDouble(number);
            return pattern->format(formattable, 1, toAppendTo, pos, status);
        }
    }
    status = U_ILLEGAL_ARGUMENT_ERROR;
    return toAppendTo;
}