c526a38369
ultimately this is make it more convenient for us to wire up different elements of the analysis pipeline, without having to preload everything into memory before we need it separately the index layer now has a mechanism for storing internal key/value pairs. this is expected to be used to store the mapping, and possibly other pieces of data by the top layer, but not exposed to the user at the top.
145 lines
4.2 KiB
Go
145 lines
4.2 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 main
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import (
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_ "expvar"
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"flag"
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"io/ioutil"
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"log"
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"net/http"
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"os"
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"path/filepath"
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"runtime/pprof"
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"time"
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"github.com/couchbaselabs/bleve"
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bleveHttp "github.com/couchbaselabs/bleve/http"
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)
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var cpuprofile = flag.String("cpuprofile", "", "write cpu profile to file")
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var memprofile = flag.String("memprofile", "", "write mem profile to file")
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var batchSize = flag.Int("batchSize", 100, "batch size for indexing")
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var bindAddr = flag.String("addr", ":8094", "http listen address")
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var jsonDir = flag.String("jsonDir", "../../samples/beer-sample/", "json directory")
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var indexDir = flag.String("indexDir", "beer-search.bleve", "index directory")
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var staticEtag = flag.String("staticEtag", "", "A static etag value.")
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var staticPath = flag.String("static", "static/", "Path to the static content")
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func main() {
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flag.Parse()
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// create cpu profile if requested
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if *cpuprofile != "" {
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f, err := os.Create(*cpuprofile)
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if err != nil {
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log.Fatal(err)
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}
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pprof.StartCPUProfile(f)
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}
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// create a mapping
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indexMapping := buildIndexMapping()
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// open the index
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beerIndex, err := bleve.Open(*indexDir, indexMapping)
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if err != nil {
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log.Fatal(err)
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}
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// index data in the background
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go func() {
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err = indexBeer(beerIndex)
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if err != nil {
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log.Fatal(err)
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}
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if *cpuprofile != "" {
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pprof.StopCPUProfile()
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log.Printf("closing cpu profile")
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}
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if *memprofile != "" {
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f, err := os.Create(*memprofile)
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if err != nil {
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log.Fatal(err)
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}
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pprof.WriteHeapProfile(f)
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log.Printf("mem profile written")
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}
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}()
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// create a router to serve static files
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router := staticFileRouter()
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// add the API
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bleveHttp.RegisterIndexName("beer", beerIndex)
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searchHandler := bleveHttp.NewSearchHandler("beer")
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router.Handle("/api/search", searchHandler).Methods("POST")
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listFieldsHandler := bleveHttp.NewListFieldsHandler("beer")
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router.Handle("/api/fields", listFieldsHandler).Methods("GET")
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debugHandler := bleveHttp.NewDebugDocumentHandler("beer")
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router.Handle("/api/debug/{docID}", debugHandler).Methods("GET")
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// start the HTTP server
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http.Handle("/", router)
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log.Printf("Listening on %v", *bindAddr)
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log.Fatal(http.ListenAndServe(*bindAddr, nil))
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}
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func indexBeer(i bleve.Index) error {
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// open the directory
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dirEntries, err := ioutil.ReadDir(*jsonDir)
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if err != nil {
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return err
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}
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// walk the directory entries for indexing
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log.Printf("Indexing...")
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count := 0
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startTime := time.Now()
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batch := bleve.NewBatch()
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batchCount := 0
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for _, dirEntry := range dirEntries {
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filename := dirEntry.Name()
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// read the bytes
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jsonBytes, err := ioutil.ReadFile(*jsonDir + "/" + filename)
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if err != nil {
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return err
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}
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// // shred them into a document
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ext := filepath.Ext(filename)
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docId := filename[:(len(filename) - len(ext))]
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batch.Index(docId, jsonBytes)
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batchCount++
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if batchCount >= *batchSize {
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err = i.Batch(batch)
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if err != nil {
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return err
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}
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batch = bleve.NewBatch()
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batchCount = 0
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}
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count++
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if count%1000 == 0 {
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indexDuration := time.Since(startTime)
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indexDurationSeconds := float64(indexDuration) / float64(time.Second)
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timePerDoc := float64(indexDuration) / float64(count)
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log.Printf("Indexed %d documents, in %.2fs (average %.2fms/doc)", count, indexDurationSeconds, timePerDoc/float64(time.Millisecond))
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}
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}
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indexDuration := time.Since(startTime)
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indexDurationSeconds := float64(indexDuration) / float64(time.Second)
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timePerDoc := float64(indexDuration) / float64(count)
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log.Printf("Indexed %d documents, in %.2fs (average %.2fms/doc)", count, indexDurationSeconds, timePerDoc/float64(time.Millisecond))
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return nil
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}
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