2ee7289bc8
this started initially to relocate highlighting into a self contained package, which would then also use the registry however, it turned into a much larger refactor in order to avoid cyclic imports now facets, searchers, scorers and collectors are also broken out into subpackages of search
62 lines
2.2 KiB
Go
62 lines
2.2 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 registry
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import (
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"fmt"
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"github.com/blevesearch/bleve/search/highlight"
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)
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func RegisterFragmenter(name string, constructor FragmenterConstructor) {
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_, exists := fragmenters[name]
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if exists {
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panic(fmt.Errorf("attempted to register duplicate fragmenter named '%s'", name))
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}
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fragmenters[name] = constructor
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}
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type FragmenterConstructor func(config map[string]interface{}, cache *Cache) (highlight.Fragmenter, error)
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type FragmenterRegistry map[string]FragmenterConstructor
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type FragmenterCache map[string]highlight.Fragmenter
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func (c FragmenterCache) FragmenterNamed(name string, cache *Cache) (highlight.Fragmenter, error) {
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fragmenter, cached := c[name]
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if cached {
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return fragmenter, nil
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}
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fragmenterConstructor, registered := fragmenters[name]
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if !registered {
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return nil, fmt.Errorf("no fragmenter with name or type '%s' registered", name)
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}
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fragmenter, err := fragmenterConstructor(nil, cache)
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if err != nil {
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return nil, fmt.Errorf("error building fragmenter: %v", err)
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}
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c[name] = fragmenter
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return fragmenter, nil
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}
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func (c FragmenterCache) DefineFragmenter(name string, typ string, config map[string]interface{}, cache *Cache) (highlight.Fragmenter, error) {
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_, cached := c[name]
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if cached {
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return nil, fmt.Errorf("fragmenter named '%s' already defined", name)
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}
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fragmenterConstructor, registered := fragmenters[typ]
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if !registered {
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return nil, fmt.Errorf("no fragmenter type '%s' registered", typ)
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}
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fragmenter, err := fragmenterConstructor(config, cache)
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if err != nil {
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return nil, fmt.Errorf("error building fragmenter: %v", err)
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}
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c[name] = fragmenter
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return fragmenter, nil
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}
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