97 lines
2.5 KiB
Go
97 lines
2.5 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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"flag"
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"fmt"
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"log"
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"github.com/couchbaselabs/bleve/index/store/leveldb"
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"github.com/couchbaselabs/bleve/index/upside_down"
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"github.com/couchbaselabs/bleve/search"
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)
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var field = flag.String("field", "description", "field to query")
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var indexDir = flag.String("indexDir", "index", "index directory")
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var limit = flag.Int("limit", 10, "limit to first N results")
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var includeHighlights = flag.Bool("highlight", false, "highlight matches")
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func main() {
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flag.Parse()
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if flag.NArg() < 1 {
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log.Fatal("Specify search term")
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}
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// open index
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store, err := leveldb.Open(*indexDir)
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if err != nil {
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log.Fatal(err)
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}
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index := upside_down.NewUpsideDownCouch(store)
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err = index.Open()
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if err != nil {
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log.Fatal(err)
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}
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defer index.Close()
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tq := search.TermQuery{
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Term: flag.Arg(0),
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Field: *field,
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BoostVal: 1.0,
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Explain: true,
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}
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collector := search.NewTopScorerCollector(*limit)
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searcher, err := tq.Searcher(index)
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if err != nil {
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log.Fatalf("searcher error: %v", err)
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return
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}
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err = collector.Collect(searcher)
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if err != nil {
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log.Fatalf("search error: %v", err)
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return
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}
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results := collector.Results()
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if len(results) == 0 {
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fmt.Printf("No matches\n")
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} else {
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last := uint64(*limit)
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if searcher.Count() < last {
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last = searcher.Count()
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}
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fmt.Printf("%d matches, showing %d through %d\n", searcher.Count(), 1, last)
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for i, result := range results {
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fmt.Printf("%2d. %s (%f)\n", i+1, result.ID, result.Score)
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if *includeHighlights {
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highlighter := search.NewSimpleHighlighter()
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doc, err := index.Document(result.ID)
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if err != nil {
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fmt.Print(err)
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return
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}
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fragments := highlighter.BestFragmentsInField(result, doc, *field, 5)
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for _, fragment := range fragments {
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fmt.Printf("\t%s\n", fragment)
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}
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if len(fragments) == 0 {
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for _, f := range doc.Fields {
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fmt.Printf("\tfield: %s\n", f)
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}
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}
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}
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}
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}
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}
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