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bleve/utils/bleve_bulkindex/main.go
2015-09-16 17:18:46 -04:00

106 lines
2.2 KiB
Go

// Copyright (c) 2014 Couchbase, Inc.
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
// except in compliance with the License. You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software distributed under the
// License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
// either express or implied. See the License for the specific language governing permissions
// and limitations under the License.
package main
import (
"bufio"
"flag"
"log"
"math/rand"
"os"
"github.com/blevesearch/bleve"
_ "github.com/blevesearch/bleve/config"
)
var indexPath = flag.String("index", "", "index path")
var batchSize = flag.Int("size", 1000, "size of a single batch to index")
func main() {
flag.Parse()
if *indexPath == "" {
log.Fatal("must specify index path")
}
// open the index
index, err := bleve.Open(*indexPath)
if err != nil {
log.Fatal(err)
}
defer func() {
cerr := index.Close()
if cerr != nil {
log.Fatalf("error closing index: %v", err)
}
}()
if flag.NArg() < 1 {
log.Fatal("must specify at least one path to index")
}
i := 0
batch := index.NewBatch()
for _, file := range flag.Args() {
file, err := os.Open(file)
defer func() {
cerr := file.Close()
if cerr != nil {
log.Fatalf("error closing file: %v", cerr)
}
}()
if err != nil {
log.Fatal(err)
}
log.Printf("Indexing: %s\n", file.Name())
r := bufio.NewReader(file)
for {
if i%*batchSize == 0 {
log.Printf("Indexing batch (%d docs)...\n", i)
err := index.Batch(batch)
if err != nil {
log.Fatal(err)
}
batch = index.NewBatch()
}
b, _ := r.ReadBytes('\n')
if len(b) == 0 {
break
}
docID := randomString(5)
err := batch.Index(docID, b)
if err != nil {
log.Fatal(err)
}
i++
}
err = index.Batch(batch)
if err != nil {
log.Fatal(err)
}
}
}
var letters = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ")
func randomString(n int) string {
b := make([]rune, n)
for i := range b {
b[i] = letters[rand.Intn(len(letters))]
}
return string(b)
}