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 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 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 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 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
}