github.com/balzaczyy/golucene@v0.0.0-20151210033525-d0be9ee89713/gl.go (about)

     1  package main
     2  
     3  import (
     4  	"fmt"
     5  	std "github.com/balzaczyy/golucene/analysis/standard"
     6  	_ "github.com/balzaczyy/golucene/core/codec/lucene410"
     7  	"github.com/balzaczyy/golucene/core/document"
     8  	"github.com/balzaczyy/golucene/core/index"
     9  	"github.com/balzaczyy/golucene/core/search"
    10  	"github.com/balzaczyy/golucene/core/store"
    11  	"github.com/balzaczyy/golucene/core/util"
    12  	"os"
    13  )
    14  
    15  func main() {
    16  	util.SetDefaultInfoStream(util.NewPrintStreamInfoStream(os.Stdout))
    17  	index.DefaultSimilarity = func() index.Similarity {
    18  		return search.NewDefaultSimilarity()
    19  	}
    20  
    21  	directory, _ := store.OpenFSDirectory("test_index")
    22  	analyzer := std.NewStandardAnalyzer()
    23  	conf := index.NewIndexWriterConfig(util.VERSION_LATEST, analyzer)
    24  	writer, _ := index.NewIndexWriter(directory, conf)
    25  
    26  	d := document.NewDocument()
    27  	d.Add(document.NewTextFieldFromString("foo", "bar", document.STORE_YES))
    28  	writer.AddDocument(d.Fields())
    29  	writer.Close() // ensure index is written
    30  
    31  	reader, _ := index.OpenDirectoryReader(directory)
    32  	searcher := search.NewIndexSearcher(reader)
    33  
    34  	q := search.NewTermQuery(index.NewTerm("foo", "bar"))
    35  	res, _ := searcher.Search(q, nil, 1000)
    36  	fmt.Printf("Found %v hit(s).\n", res.TotalHits)
    37  	for _, hit := range res.ScoreDocs {
    38  		fmt.Printf("Doc %v score: %v\n", hit.Doc, hit.Score)
    39  		doc, _ := reader.Document(hit.Doc)
    40  		fmt.Printf("foo -> %v\n", doc.Get("foo"))
    41  	}
    42  
    43  }