1dcd06e412
now, as part of your index mapping you can create custom analysis components. these custome analysis components are serialized as part of the mapping, and reused as you would expect on subsequent accesses.
74 lines
2.0 KiB
Go
74 lines
2.0 KiB
Go
// Copyright (c) 2014 Couchbase, Inc.
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
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// except in compliance with the License. You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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// Unless required by applicable law or agreed to in writing, software distributed under the
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// License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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// either express or implied. See the License for the specific language governing permissions
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// and limitations under the License.
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package standard_analyzer
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import (
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"fmt"
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"github.com/blevesearch/bleve/analysis"
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"github.com/blevesearch/bleve/registry"
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)
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const Name = "custom"
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func AnalyzerConstructor(config map[string]interface{}, cache *registry.Cache) (*analysis.Analyzer, error) {
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var charFilters []analysis.CharFilter
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charFilterNames, ok := config["char_filters"].([]string)
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if ok {
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charFilters = make([]analysis.CharFilter, len(charFilterNames))
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for i, charFilterName := range charFilterNames {
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charFilter, err := cache.CharFilterNamed(charFilterName)
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if err != nil {
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return nil, err
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}
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charFilters[i] = charFilter
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}
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}
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tokenizerName, ok := config["tokenizer"].(string)
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if !ok {
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return nil, fmt.Errorf("must specify tokenizer")
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}
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tokenizer, err := cache.TokenizerNamed(tokenizerName)
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if err != nil {
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return nil, err
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}
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var tokenFilters []analysis.TokenFilter
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tokenFilterNames, ok := config["token_filters"].([]string)
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if ok {
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tokenFilters = make([]analysis.TokenFilter, len(tokenFilterNames))
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for i, tokenFilterName := range tokenFilterNames {
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tokenFilter, err := cache.TokenFilterNamed(tokenFilterName)
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if err != nil {
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return nil, err
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}
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tokenFilters[i] = tokenFilter
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}
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}
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rv := analysis.Analyzer{
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Tokenizer: tokenizer,
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}
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if charFilters != nil {
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rv.CharFilters = charFilters
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}
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if tokenFilters != nil {
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rv.TokenFilters = tokenFilters
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}
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return &rv, nil
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}
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func init() {
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registry.RegisterAnalyzer(Name, AnalyzerConstructor)
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}
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