Esempio n. 1
0
func main() {
	util.SetDefaultInfoStream(util.NewPrintStreamInfoStream(os.Stdout))
	index.DefaultSimilarity = func() index.Similarity {
		return search.NewDefaultSimilarity()
	}

	directory, _ := store.OpenFSDirectory("test_index")
	analyzer := std.NewStandardAnalyzer()
	conf := index.NewIndexWriterConfig(util.VERSION_LATEST, analyzer)
	writer, _ := index.NewIndexWriter(directory, conf)

	d := document.NewDocument()
	d.Add(document.NewTextFieldFromString("foo", "bar", document.STORE_YES))
	writer.AddDocument(d.Fields())
	writer.Close() // ensure index is written

	reader, _ := index.OpenDirectoryReader(directory)
	searcher := search.NewIndexSearcher(reader)

	q := search.NewTermQuery(index.NewTerm("foo", "bar"))
	res, _ := searcher.Search(q, nil, 1000)
	fmt.Printf("Found %v hit(s).\n", res.TotalHits)
	for _, hit := range res.ScoreDocs {
		fmt.Printf("Doc %v score: %v\n", hit.Doc, hit.Score)
		doc, _ := reader.Document(hit.Doc)
		fmt.Printf("foo -> %v\n", doc.Get("foo"))
	}

}
Esempio n. 2
0
func main() {
	log.Print("Oepning FSDirectory...")
	// path := "src/github.com/balzaczyy/golucene/search/testdata/win8/belfrysample"
	path := "core/search/testdata/win8/belfrysample"
	// path := "/private/tmp/kc/index/belfrysample"
	// path := "c:/tmp/kc/index/belfrysample"
	d, err := store.OpenFSDirectory(path)
	if err != nil {
		panic(err)
	}
	log.Print("Opening DirectoryReader...")
	r, err := index.OpenDirectoryReader(d)
	if err != nil {
		panic(err)
	}
	if r == nil {
		panic("DirectoryReader cannot be opened.")
	}
	if len(r.Leaves()) < 1 {
		panic("Should have one leaf.")
	}
	log.Print("Initializing IndexSearcher...")
	ss := search.NewIndexSearcher(r)
	log.Print("Searching...")
	docs, err := ss.SearchTop(search.NewTermQuery(index.NewTerm("content", "bat")), 10)
	if err != nil {
		panic(err)
	}
	log.Println("Hits:", docs.TotalHits)
	doc, err := r.Document(docs.ScoreDocs[0].Doc)
	if err != nil {
		panic(err)
	}
	log.Println("Hit 1's title: ", doc.Get("title"))
}
Esempio n. 3
0
func TestBasicIndexAndSearch(t *testing.T) {
	q := search.NewTermQuery(index.NewTerm("foo", "bar"))
	q.SetBoost(-42)

	os.RemoveAll(".gltest")

	directory, err := store.OpenFSDirectory(".gltest")
	It(t).Should("has no error: %v", err).Assert(err == nil)
	It(t).Should("has valid directory").Assert(directory != nil)
	fmt.Println("Directory", directory)
	defer directory.Close()

	analyzer := std.NewStandardAnalyzer()
	conf := index.NewIndexWriterConfig(util.VERSION_LATEST, analyzer)

	writer, err := index.NewIndexWriter(directory, conf)
	It(t).Should("has no error: %v", err).Assert(err == nil)

	d := docu.NewDocument()
	d.Add(docu.NewTextFieldFromString("foo", "bar", docu.STORE_YES))
	err = writer.AddDocument(d.Fields())
	It(t).Should("has no error: %v", err).Assert(err == nil)
	err = writer.Close() // ensure index is written
	It(t).Should("has no error: %v", err).Assert(err == nil)

	reader, err := index.OpenDirectoryReader(directory)
	It(t).Should("has no error: %v", err).Assert(err == nil)
	defer reader.Close()

	searcher := search.NewIndexSearcher(reader)
	res, err := searcher.Search(q, nil, 1000)
	It(t).Should("has no error: %v", err).Assert(err == nil)
	hits := res.ScoreDocs
	It(t).Should("expect 1 hits, but %v only.", len(hits)).Assert(len(hits) == 1)
	It(t).Should("expect score to be negative (got %v)", hits[0].Score).Verify(hits[0].Score < 0)

	explain, err := searcher.Explain(q, hits[0].Doc)
	It(t).Should("has no error: %v", err).Assert(err == nil)
	It(t).Should("score doesn't match explanation (%v vs %v)", hits[0].Score, explain.Value()).Verify(isSimilar(hits[0].Score, explain.Value(), 0.001))
	It(t).Should("explain doesn't think doc is a match").Verify(explain.IsMatch())
}
Esempio n. 4
0
func NewAssertingIndexSearcher(random *rand.Rand, r index.IndexReader) *AssertingIndexSearcher {
	return &AssertingIndexSearcher{
		search.NewIndexSearcher(r),
		rand.New(rand.NewSource(random.Int63())),
	}
}