dbb93b75a4
this lays the foundation for supporting the new firestorm indexing scheme. i'm merging these changes ahead of the rest of the firestorm branch so i can continue to make changes to the analysis pipeline in parallel
74 lines
1.6 KiB
Go
74 lines
1.6 KiB
Go
// Copyright (c) 2015 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 index
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import "github.com/blevesearch/bleve/document"
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type IndexRow interface {
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Key() []byte
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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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}
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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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