123 lines
2.8 KiB
Go
123 lines
2.8 KiB
Go
// Copyright (c) 2014 Couchbase, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package searcher
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import (
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"reflect"
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"github.com/blevesearch/bleve/index"
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"github.com/blevesearch/bleve/search"
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"github.com/blevesearch/bleve/search/scorer"
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"github.com/blevesearch/bleve/size"
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)
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var reflectStaticSizeMatchAllSearcher int
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func init() {
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var mas MatchAllSearcher
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reflectStaticSizeMatchAllSearcher = int(reflect.TypeOf(mas).Size())
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}
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type MatchAllSearcher struct {
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indexReader index.IndexReader
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reader index.DocIDReader
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scorer *scorer.ConstantScorer
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count uint64
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}
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func NewMatchAllSearcher(indexReader index.IndexReader, boost float64, options search.SearcherOptions) (*MatchAllSearcher, error) {
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reader, err := indexReader.DocIDReaderAll()
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if err != nil {
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return nil, err
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}
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count, err := indexReader.DocCount()
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if err != nil {
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_ = reader.Close()
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return nil, err
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}
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scorer := scorer.NewConstantScorer(1.0, boost, options)
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return &MatchAllSearcher{
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indexReader: indexReader,
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reader: reader,
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scorer: scorer,
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count: count,
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}, nil
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}
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func (s *MatchAllSearcher) Size() int {
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return reflectStaticSizeMatchAllSearcher + size.SizeOfPtr +
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s.indexReader.Size() +
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s.reader.Size() +
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s.scorer.Size()
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}
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func (s *MatchAllSearcher) Count() uint64 {
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return s.count
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}
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func (s *MatchAllSearcher) Weight() float64 {
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return s.scorer.Weight()
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}
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func (s *MatchAllSearcher) SetQueryNorm(qnorm float64) {
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s.scorer.SetQueryNorm(qnorm)
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}
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func (s *MatchAllSearcher) Next(ctx *search.SearchContext) (*search.DocumentMatch, error) {
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id, err := s.reader.Next()
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if err != nil {
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return nil, err
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}
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if id == nil {
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return nil, nil
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}
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// score match
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docMatch := s.scorer.Score(ctx, id)
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// return doc match
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return docMatch, nil
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}
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func (s *MatchAllSearcher) Advance(ctx *search.SearchContext, ID index.IndexInternalID) (*search.DocumentMatch, error) {
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id, err := s.reader.Advance(ID)
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if err != nil {
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return nil, err
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}
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if id == nil {
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return nil, nil
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}
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// score match
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docMatch := s.scorer.Score(ctx, id)
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// return doc match
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return docMatch, nil
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}
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func (s *MatchAllSearcher) Close() error {
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return s.reader.Close()
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}
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func (s *MatchAllSearcher) Min() int {
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return 0
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}
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func (s *MatchAllSearcher) DocumentMatchPoolSize() int {
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return 1
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}
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