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111 lines
2.2 KiB
111 lines
2.2 KiB
// Copyright (c) 2015 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 index
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import (
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"reflect"
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"github.com/blevesearch/bleve/analysis"
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"github.com/blevesearch/bleve/document"
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"github.com/blevesearch/bleve/size"
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)
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var reflectStaticSizeAnalysisResult int
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func init() {
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var ar AnalysisResult
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reflectStaticSizeAnalysisResult = int(reflect.TypeOf(ar).Size())
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}
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type IndexRow interface {
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KeySize() int
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KeyTo([]byte) (int, error)
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Key() []byte
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ValueSize() int
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ValueTo([]byte) (int, error)
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Value() []byte
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}
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type AnalysisResult struct {
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DocID string
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Rows []IndexRow
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// scorch
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Document *document.Document
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Analyzed []analysis.TokenFrequencies
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Length []int
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}
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func (a *AnalysisResult) Size() int {
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rv := reflectStaticSizeAnalysisResult
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for _, analyzedI := range a.Analyzed {
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rv += analyzedI.Size()
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}
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rv += len(a.Length) * size.SizeOfInt
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return rv
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}
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type AnalysisWork struct {
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i Index
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d *document.Document
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rc chan *AnalysisResult
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}
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func NewAnalysisWork(i Index, d *document.Document, rc chan *AnalysisResult) *AnalysisWork {
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return &AnalysisWork{
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i: i,
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d: d,
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rc: rc,
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}
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}
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type AnalysisQueue struct {
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queue chan *AnalysisWork
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done chan struct{}
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}
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func (q *AnalysisQueue) Queue(work *AnalysisWork) {
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q.queue <- work
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}
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func (q *AnalysisQueue) Close() {
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close(q.done)
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}
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func NewAnalysisQueue(numWorkers int) *AnalysisQueue {
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rv := AnalysisQueue{
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queue: make(chan *AnalysisWork),
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done: make(chan struct{}),
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}
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for i := 0; i < numWorkers; i++ {
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go AnalysisWorker(rv)
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}
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return &rv
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}
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func AnalysisWorker(q AnalysisQueue) {
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// read work off the queue
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for {
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select {
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case <-q.done:
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return
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case w := <-q.queue:
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r := w.i.Analyze(w.d)
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w.rc <- r
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}
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}
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}
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