130 lines
3.3 KiB
Go
130 lines
3.3 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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"encoding/json"
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"flag"
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"fmt"
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"log"
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"os"
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"strings"
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"github.com/blevesearch/bleve"
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_ "github.com/blevesearch/bleve/config"
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_ "github.com/blevesearch/bleve/index/store/metrics"
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"github.com/blevesearch/bleve/index/upside_down"
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)
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var indexPath = flag.String("index", "", "index path")
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var fieldsOnly = flag.Bool("fields", false, "print only field definitions")
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var docID = flag.String("docID", "", "print only rows related to specified document")
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var mappingOnly = flag.Bool("mapping", false, "print only index mappings")
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var dictionary = flag.String("dictionary", "", "print dictionary for this field")
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var countOnly = flag.Bool("count", false, "print only doc count")
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func main() {
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flag.Usage = func() {
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fmt.Fprintf(os.Stderr, strings.TrimSpace(`
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bleve_dump prints the properties and binary representations of all rows in the
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index specified by -index.
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`)+"\n\n")
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flag.PrintDefaults()
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}
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flag.Parse()
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if len(flag.Args()) > 0 {
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log.Fatalf("unexpected argument '%s', use -help to see possible options",
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flag.Args()[0])
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}
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if *indexPath == "" {
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log.Fatal("specify index to dump")
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}
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index, err := bleve.Open(*indexPath)
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if err != nil {
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log.Fatal(err)
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}
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defer func() {
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cerr := index.Close()
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if cerr != nil {
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log.Fatalf("error closing index: %v", err)
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}
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}()
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if *countOnly {
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count, err := index.DocCount()
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if err != nil {
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log.Fatalf("error getting doc count: %v", err)
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}
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fmt.Printf("doc count: %d\n", count)
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return
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}
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if *mappingOnly {
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if *docID != "" || *fieldsOnly {
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log.Fatal("-mapping cannot be used with -docID or -fields")
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}
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mapping := index.Mapping()
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jsonBytes, err := json.MarshalIndent(mapping, "", " ")
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if err != nil {
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log.Fatal(err)
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}
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fmt.Printf("%s\n", jsonBytes)
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return
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}
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var dumpChan chan interface{}
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if *docID != "" {
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if *fieldsOnly {
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log.Fatal("-docID cannot be used with -fields")
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}
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dumpChan = index.DumpDoc(*docID)
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} else if *fieldsOnly {
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dumpChan = index.DumpFields()
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} else if *dictionary != "" {
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dumpDictionary(index, *dictionary)
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return
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} else {
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dumpChan = index.DumpAll()
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}
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for rowOrErr := range dumpChan {
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switch rowOrErr := rowOrErr.(type) {
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case error:
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log.Printf("error dumping: %v", rowOrErr)
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case upside_down.UpsideDownCouchRow:
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fmt.Printf("%v\n", rowOrErr)
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fmt.Printf("Key: % -100x\nValue: % -100x\n\n", rowOrErr.Key(), rowOrErr.Value())
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}
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}
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}
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func dumpDictionary(index bleve.Index, field string) {
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i, _, err := index.Advanced()
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if err != nil {
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log.Fatal(err)
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}
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r, err := i.Reader()
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if err != nil {
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log.Fatal(err)
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}
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d, err := r.FieldDict(field)
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if err != nil {
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log.Fatal(err)
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}
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de, err := d.Next()
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for err == nil && de != nil {
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fmt.Printf("%s - %d\n", de.Term, de.Count)
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de, err = d.Next()
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}
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}
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