Golang github.com-acgshare-bleve-registry.Cache类(方法)实例源码

func DictionaryCompoundFilterConstructor(config map[string]interface{}, cache *registry.Cache) (analysis.TokenFilter, error) {

	minWordSize := defaultMinWordSize
	minSubWordSize := defaultMinSubWordSize
	maxSubWordSize := defaultMaxSubWordSize
	onlyLongestMatch := defaultOnlyLongestMatch

	minVal, ok := config["min_word_size"].(float64)
	if ok {
		minWordSize = int(minVal)
	}
	minSubVal, ok := config["min_subword_size"].(float64)
	if ok {
		minSubWordSize = int(minSubVal)
	}
	maxSubVal, ok := config["max_subword_size"].(float64)
	if ok {
		maxSubWordSize = int(maxSubVal)
	}
	onlyVal, ok := config["only_longest_match"].(bool)
	if ok {
		onlyLongestMatch = onlyVal
	}

	dictTokenMapName, ok := config["dict_token_map"].(string)
	if !ok {
		return nil, fmt.Errorf("must specify dict_token_map")
	}
	dictTokenMap, err := cache.TokenMapNamed(dictTokenMapName)
	if err != nil {
		return nil, fmt.Errorf("error building dict compound words filter: %v", err)
	}
	return NewDictionaryCompoundFilter(dictTokenMap, minWordSize, minSubWordSize, maxSubWordSize, onlyLongestMatch), nil
}

func AnalyzerConstructor(config map[string]interface{}, cache *registry.Cache) (*analysis.Analyzer, error) {
	tokenizer, err := cache.TokenizerNamed(unicode.Name)
	if err != nil {
		return nil, err
	}
	possEnFilter, err := cache.TokenFilterNamed(PossessiveName)
	if err != nil {
		return nil, err
	}
	toLowerFilter, err := cache.TokenFilterNamed(lower_case_filter.Name)
	if err != nil {
		return nil, err
	}
	stopEnFilter, err := cache.TokenFilterNamed(StopName)
	if err != nil {
		return nil, err
	}
	stemmerEnFilter, err := cache.TokenFilterNamed(porter.Name)
	if err != nil {
		return nil, err
	}
	rv := analysis.Analyzer{
		Tokenizer: tokenizer,
		TokenFilters: []analysis.TokenFilter{
			possEnFilter,
			toLowerFilter,
			stopEnFilter,
			stemmerEnFilter,
		},
	}
	return &rv, nil
}

func ElisionFilterConstructor(config map[string]interface{}, cache *registry.Cache) (analysis.TokenFilter, error) {
	articlesTokenMap, err := cache.TokenMapNamed(ArticlesName)
	if err != nil {
		return nil, fmt.Errorf("error building elision filter: %v", err)
	}
	return elision_filter.NewElisionFilter(articlesTokenMap), nil
}

func AnalyzerConstructor(config map[string]interface{}, cache *registry.Cache) (*analysis.Analyzer, error) {
	tokenizer, err := cache.TokenizerNamed(unicode.Name)
	if err != nil {
		return nil, err
	}
	elisionFilter, err := cache.TokenFilterNamed(ElisionName)
	if err != nil {
		return nil, err
	}
	toLowerFilter, err := cache.TokenFilterNamed(lower_case_filter.Name)
	if err != nil {
		return nil, err
	}
	stopItFilter, err := cache.TokenFilterNamed(StopName)
	if err != nil {
		return nil, err
	}
	stemmerItFilter, err := cache.TokenFilterNamed(LightStemmerName)
	if err != nil {
		return nil, err
	}
	rv := analysis.Analyzer{
		Tokenizer: tokenizer,
		TokenFilters: []analysis.TokenFilter{
			toLowerFilter,
			elisionFilter,
			stopItFilter,
			stemmerItFilter,
		},
	}
	return &rv, nil
}

func AnalyzerConstructor(config map[string]interface{}, cache *registry.Cache) (*analysis.Analyzer, error) {
	unicodeTokenizer, err := cache.TokenizerNamed(unicode.Name)
	if err != nil {
		return nil, err
	}
	normCkbFilter, err := cache.TokenFilterNamed(NormalizeName)
	if err != nil {
		return nil, err
	}
	toLowerFilter, err := cache.TokenFilterNamed(lower_case_filter.Name)
	if err != nil {
		return nil, err
	}
	stopCkbFilter, err := cache.TokenFilterNamed(StopName)
	if err != nil {
		return nil, err
	}
	stemmerCkbFilter, err := cache.TokenFilterNamed(StemmerName)
	if err != nil {
		return nil, err
	}
	rv := analysis.Analyzer{
		Tokenizer: unicodeTokenizer,
		TokenFilters: []analysis.TokenFilter{
			normCkbFilter,
			toLowerFilter,
			stopCkbFilter,
			stemmerCkbFilter,
		},
	}
	return &rv, nil
}

func AnalyzerConstructor(config map[string]interface{}, cache *registry.Cache) (*analysis.Analyzer, error) {
	tokenizer, err := cache.TokenizerNamed(unicode.Name)
	if err != nil {
		return nil, err
	}
	toLowerFilter, err := cache.TokenFilterNamed(lower_case_filter.Name)
	if err != nil {
		return nil, err
	}
	normalizeFilter := unicode_normalize.MustNewUnicodeNormalizeFilter(unicode_normalize.NFKC)
	stopArFilter, err := cache.TokenFilterNamed(StopName)
	if err != nil {
		return nil, err
	}
	normalizeArFilter, err := cache.TokenFilterNamed(NormalizeName)
	if err != nil {
		return nil, err
	}
	stemmerArFilter, err := cache.TokenFilterNamed(StemmerName)
	if err != nil {
		return nil, err
	}
	rv := analysis.Analyzer{
		Tokenizer: tokenizer,
		TokenFilters: []analysis.TokenFilter{
			toLowerFilter,
			normalizeFilter,
			stopArFilter,
			normalizeArFilter,
			stemmerArFilter,
		},
	}
	return &rv, nil
}

func TokenizerConstructor(config map[string]interface{}, cache *registry.Cache) (analysis.Tokenizer, error) {
	remainingTokenizer, err := cache.TokenizerNamed(unicode.Name)
	if err != nil {
		return nil, err
	}
	return exception.NewExceptionsTokenizer(exceptionsRegexp, remainingTokenizer), nil
}

func StopTokenFilterConstructor(config map[string]interface{}, cache *registry.Cache) (analysis.TokenFilter, error) {
	tokenMap, err := cache.TokenMapNamed(StopName)
	if err != nil {
		return nil, err
	}
	return stop_tokens_filter.NewStopTokensFilter(tokenMap), nil
}

func Constructor(config map[string]interface{}, cache *registry.Cache) (highlight.Highlighter, error) {
	separator := DefaultSeparator
	separatorVal, ok := config["separator"].(string)
	if ok {
		separator = separatorVal
	}

	fragmenterName, ok := config["fragmenter"].(string)
	if !ok {
		return nil, fmt.Errorf("must specify fragmenter")
	}
	fragmenter, err := cache.FragmenterNamed(fragmenterName)
	if err != nil {
		return nil, fmt.Errorf("error building fragmenter: %v", err)
	}

	formatterName, ok := config["formatter"].(string)
	if !ok {
		return nil, fmt.Errorf("must specify formatter")
	}
	formatter, err := cache.FragmentFormatterNamed(formatterName)
	if err != nil {
		return nil, fmt.Errorf("error building fragment formatter: %v", err)
	}

	return NewHighlighter(fragmenter, formatter, separator), nil
}

func ExceptionsTokenizerConstructor(config map[string]interface{}, cache *registry.Cache) (analysis.Tokenizer, error) {
	exceptions := []string{}
	iexceptions, ok := config["exceptions"].([]interface{})
	if ok {
		for _, exception := range iexceptions {
			exception, ok := exception.(string)
			if ok {
				exceptions = append(exceptions, exception)
			}
		}
	}
	aexceptions, ok := config["exceptions"].([]string)
	if ok {
		exceptions = append(exceptions, aexceptions...)
	}
	if len(exceptions) == 0 {
		return nil, fmt.Errorf("no pattern found in 'exception' property")
	}
	exceptionPattern := strings.Join(exceptions, "|")
	r, err := regexp.Compile(exceptionPattern)
	if err != nil {
		return nil, fmt.Errorf("unable to build regexp tokenizer: %v", err)
	}

	remainingName, ok := config["tokenizer"].(string)
	if !ok {
		return nil, fmt.Errorf("must specify tokenizer for remaining input")
	}
	remaining, err := cache.TokenizerNamed(remainingName)
	if err != nil {
		return nil, err
	}
	return NewExceptionsTokenizer(r, remaining), nil
}

func AnalyzerConstructor(config map[string]interface{}, cache *registry.Cache) (*analysis.Analyzer, error) {
	keywordTokenizer, err := cache.TokenizerNamed(single_token.Name)
	if err != nil {
		return nil, err
	}
	rv := analysis.Analyzer{
		Tokenizer: keywordTokenizer,
	}
	return &rv, nil
}

func StopTokensFilterConstructor(config map[string]interface{}, cache *registry.Cache) (analysis.TokenFilter, error) {
	stopTokenMapName, ok := config["stop_token_map"].(string)
	if !ok {
		return nil, fmt.Errorf("must specify stop_token_map")
	}
	stopTokenMap, err := cache.TokenMapNamed(stopTokenMapName)
	if err != nil {
		return nil, fmt.Errorf("error building stop words filter: %v", err)
	}
	return NewStopTokensFilter(stopTokenMap), nil
}

func KeyWordMarkerFilterConstructor(config map[string]interface{}, cache *registry.Cache) (analysis.TokenFilter, error) {
	keywordsTokenMapName, ok := config["keywords_token_map"].(string)
	if !ok {
		return nil, fmt.Errorf("must specify keywords_token_map")
	}
	keywordsTokenMap, err := cache.TokenMapNamed(keywordsTokenMapName)
	if err != nil {
		return nil, fmt.Errorf("error building keyword marker filter: %v", err)
	}
	return NewKeyWordMarkerFilter(keywordsTokenMap), nil
}

func ElisionFilterConstructor(config map[string]interface{}, cache *registry.Cache) (analysis.TokenFilter, error) {
	articlesTokenMapName, ok := config["articles_token_map"].(string)
	if !ok {
		return nil, fmt.Errorf("must specify articles_token_map")
	}
	articlesTokenMap, err := cache.TokenMapNamed(articlesTokenMapName)
	if err != nil {
		return nil, fmt.Errorf("error building elision filter: %v", err)
	}
	return NewElisionFilter(articlesTokenMap), nil
}

func getTokenFilters(tokenFilterNames []string, cache *registry.Cache) ([]analysis.TokenFilter, error) {
	tokenFilters := make([]analysis.TokenFilter, len(tokenFilterNames))
	for i, tokenFilterName := range tokenFilterNames {
		tokenFilter, err := cache.TokenFilterNamed(tokenFilterName)
		if err != nil {
			return nil, err
		}
		tokenFilters[i] = tokenFilter
	}

	return tokenFilters, nil
}

func getCharFilters(charFilterNames []string, cache *registry.Cache) ([]analysis.CharFilter, error) {
	charFilters := make([]analysis.CharFilter, len(charFilterNames))
	for i, charFilterName := range charFilterNames {
		charFilter, err := cache.CharFilterNamed(charFilterName)
		if err != nil {
			return nil, err
		}
		charFilters[i] = charFilter
	}

	return charFilters, nil
}

func AnalyzerConstructor(config map[string]interface{}, cache *registry.Cache) (*analysis.Analyzer, error) {
	kagomeTokenizer, err := cache.TokenizerNamed(TokenizerName)
	if err != nil {
		return nil, err
	}
	normalizeFilter := unicode_normalize.MustNewUnicodeNormalizeFilter(unicode_normalize.NFKD)
	rv := analysis.Analyzer{
		Tokenizer: kagomeTokenizer,
		TokenFilters: []analysis.TokenFilter{
			normalizeFilter,
		},
	}
	return &rv, nil
}

func Constructor(config map[string]interface{}, cache *registry.Cache) (highlight.Highlighter, error) {

	fragmenter, err := cache.FragmenterNamed(simple_fragmenter.Name)
	if err != nil {
		return nil, fmt.Errorf("error building fragmenter: %v", err)
	}

	formatter, err := cache.FragmentFormatterNamed(html_formatter.Name)
	if err != nil {
		return nil, fmt.Errorf("error building fragment formatter: %v", err)
	}

	return simple_highlighter.NewHighlighter(
			fragmenter,
			formatter,
			simple_highlighter.DefaultSeparator),
		nil
}

func (dm *DocumentMapping) validate(cache *registry.Cache) error {
	var err error
	if dm.DefaultAnalyzer != "" {
		_, err := cache.AnalyzerNamed(dm.DefaultAnalyzer)
		if err != nil {
			return err
		}
	}
	for _, property := range dm.Properties {
		err = property.validate(cache)
		if err != nil {
			return err
		}
	}
	for _, field := range dm.Fields {
		if field.Analyzer != "" {
			_, err = cache.AnalyzerNamed(field.Analyzer)
			if err != nil {
				return err
			}
		}
		if field.DateFormat != "" {
			_, err = cache.DateTimeParserNamed(field.DateFormat)
			if err != nil {
				return err
			}
		}
		switch field.Type {
		case "text", "datetime", "number", "boolean":
		default:
			return fmt.Errorf("unknown field type: '%s'", field.Type)
		}
	}
	return nil
}

func AnalyzerConstructor(config map[string]interface{}, cache *registry.Cache) (*analysis.Analyzer, error) {
	tokenizer, err := cache.TokenizerNamed(webt.Name)
	if err != nil {
		return nil, err
	}
	toLowerFilter, err := cache.TokenFilterNamed(lower_case_filter.Name)
	if err != nil {
		return nil, err
	}
	stopEnFilter, err := cache.TokenFilterNamed(en.StopName)
	if err != nil {
		return nil, err
	}
	rv := analysis.Analyzer{
		Tokenizer: tokenizer,
		TokenFilters: []analysis.TokenFilter{
			toLowerFilter,
			stopEnFilter,
		},
	}
	return &rv, nil
}