74 lines
2.0 KiB
Go
74 lines
2.0 KiB
Go
|
// Copyright (c) 2014 Couchbase, Inc.
|
||
|
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
|
||
|
// except in compliance with the License. You may obtain a copy of the License at
|
||
|
// http://www.apache.org/licenses/LICENSE-2.0
|
||
|
// Unless required by applicable law or agreed to in writing, software distributed under the
|
||
|
// License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
|
||
|
// either express or implied. See the License for the specific language governing permissions
|
||
|
// and limitations under the License.
|
||
|
|
||
|
package standard_analyzer
|
||
|
|
||
|
import (
|
||
|
"fmt"
|
||
|
|
||
|
"github.com/blevesearch/bleve/analysis"
|
||
|
"github.com/blevesearch/bleve/registry"
|
||
|
)
|
||
|
|
||
|
const Name = "custom"
|
||
|
|
||
|
func AnalyzerConstructor(config map[string]interface{}, cache *registry.Cache) (*analysis.Analyzer, error) {
|
||
|
|
||
|
var charFilters []analysis.CharFilter
|
||
|
charFilterNames, ok := config["char_filters"].([]string)
|
||
|
if ok {
|
||
|
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
|
||
|
}
|
||
|
}
|
||
|
|
||
|
tokenizerName, ok := config["tokenizer"].(string)
|
||
|
if !ok {
|
||
|
return nil, fmt.Errorf("must specify tokenizer")
|
||
|
}
|
||
|
|
||
|
tokenizer, err := cache.TokenizerNamed(tokenizerName)
|
||
|
if err != nil {
|
||
|
return nil, err
|
||
|
}
|
||
|
|
||
|
var tokenFilters []analysis.TokenFilter
|
||
|
tokenFilterNames, ok := config["token_filters"].([]string)
|
||
|
if ok {
|
||
|
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
|
||
|
}
|
||
|
}
|
||
|
|
||
|
rv := analysis.Analyzer{
|
||
|
Tokenizer: tokenizer,
|
||
|
}
|
||
|
if charFilters != nil {
|
||
|
rv.CharFilters = charFilters
|
||
|
}
|
||
|
if tokenFilters != nil {
|
||
|
rv.TokenFilters = tokenFilters
|
||
|
}
|
||
|
return &rv, nil
|
||
|
}
|
||
|
|
||
|
func init() {
|
||
|
registry.RegisterAnalyzer(Name, AnalyzerConstructor)
|
||
|
}
|