ranker_worker.go

package engine

import (

    "github.com/huichen/wukong/types"

)

type rankerAddDocRequest struct {

    docId  uint64

    fields interface{}

}

type rankerRankRequest struct {

    docs                []types.IndexedDocument

    options             types.RankOptions

    rankerReturnChannel chan rankerReturnRequest

    countDocsOnly       bool

}

type rankerReturnRequest struct {

    docs    types.ScoredDocuments

    numDocs int

}

type rankerRemoveDocRequest struct {

    docId uint64

}

func (engine *Engine) rankerAddDocWorker(shard int) {

    for {

        request := <-engine.rankerAddDocChannels[shard]

        engine.rankers[shard].AddDoc(request.docId, request.fields)

    }

}

func (engine *Engine) rankerRankWorker(shard int) {

    for {

        request := <-engine.rankerRankChannels[shard]

        if request.options.MaxOutputs != 0 {

            request.options.MaxOutputs += request.options.OutputOffset

        }

        request.options.OutputOffset = 0

        outputDocs, numDocs := engine.rankers[shard].Rank(request.docs, request.options, request.countDocsOnly)

        request.rankerReturnChannel <- rankerReturnRequest{docs: outputDocs, numDocs: numDocs}

    }

}

func (engine *Engine) rankerRemoveDocWorker(shard int) {

    for {

        request := <-engine.rankerRemoveDocChannels[shard]

        engine.rankers[shard].RemoveDoc(request.docId)

    }

}