Example #1
0
func init() {
	inMemStore, _ := inmem.New()
	analysisQueue := index.NewAnalysisQueue(1)
	twoDocIndex = upside_down.NewUpsideDownCouch(inMemStore, analysisQueue)
	err := twoDocIndex.Open()
	if err != nil {
		panic(err)
	}
	for _, doc := range twoDocIndexDocs {
		err := twoDocIndex.Update(doc)
		if err != nil {
			panic(err)
		}
	}
}
Example #2
0
func TestTermSearcher(t *testing.T) {

	var queryTerm = "beer"
	var queryField = "desc"
	var queryBoost = 3.0
	var queryExplain = true

	inMemStore, _ := inmem.New()
	analysisQueue := upside_down.NewAnalysisQueue(1)
	i := upside_down.NewUpsideDownCouch(inMemStore, analysisQueue)
	err := i.Open()
	if err != nil {
		t.Fatal(err)
	}
	err = i.Update(&document.Document{
		ID: "a",
		Fields: []document.Field{
			document.NewTextField("desc", []uint64{}, []byte("beer")),
		},
	})
	if err != nil {
		t.Fatal(err)
	}
	err = i.Update(&document.Document{
		ID: "b",
		Fields: []document.Field{
			document.NewTextField("desc", []uint64{}, []byte("beer")),
		},
	})
	if err != nil {
		t.Fatal(err)
	}
	err = i.Update(&document.Document{
		ID: "c",
		Fields: []document.Field{
			document.NewTextField("desc", []uint64{}, []byte("beer")),
		},
	})
	if err != nil {
		t.Fatal(err)
	}
	err = i.Update(&document.Document{
		ID: "d",
		Fields: []document.Field{
			document.NewTextField("desc", []uint64{}, []byte("beer")),
		},
	})
	if err != nil {
		t.Fatal(err)
	}
	err = i.Update(&document.Document{
		ID: "e",
		Fields: []document.Field{
			document.NewTextField("desc", []uint64{}, []byte("beer")),
		},
	})
	if err != nil {
		t.Fatal(err)
	}
	err = i.Update(&document.Document{
		ID: "f",
		Fields: []document.Field{
			document.NewTextField("desc", []uint64{}, []byte("beer")),
		},
	})
	if err != nil {
		t.Fatal(err)
	}
	err = i.Update(&document.Document{
		ID: "g",
		Fields: []document.Field{
			document.NewTextField("desc", []uint64{}, []byte("beer")),
		},
	})
	if err != nil {
		t.Fatal(err)
	}
	err = i.Update(&document.Document{
		ID: "h",
		Fields: []document.Field{
			document.NewTextField("desc", []uint64{}, []byte("beer")),
		},
	})
	if err != nil {
		t.Fatal(err)
	}
	err = i.Update(&document.Document{
		ID: "i",
		Fields: []document.Field{
			document.NewTextField("desc", []uint64{}, []byte("beer")),
		},
	})
	if err != nil {
		t.Fatal(err)
	}
	err = i.Update(&document.Document{
		ID: "j",
		Fields: []document.Field{
			document.NewTextField("title", []uint64{}, []byte("cat")),
		},
	})
	if err != nil {
		t.Fatal(err)
	}

	indexReader, err := i.Reader()
	if err != nil {
		t.Error(err)
	}
	defer func() {
		err := indexReader.Close()
		if err != nil {
			t.Fatal(err)
		}
	}()

	searcher, err := NewTermSearcher(indexReader, queryTerm, queryField, queryBoost, queryExplain)
	if err != nil {
		t.Fatal(err)
	}
	defer func() {
		err := searcher.Close()
		if err != nil {
			t.Fatal(err)
		}
	}()

	searcher.SetQueryNorm(2.0)
	docCount, err := i.DocCount()
	if err != nil {
		t.Fatal(err)
	}
	idf := 1.0 + math.Log(float64(docCount)/float64(searcher.Count()+1.0))
	expectedQueryWeight := 3 * idf * 3 * idf
	if expectedQueryWeight != searcher.Weight() {
		t.Errorf("expected weight %v got %v", expectedQueryWeight, searcher.Weight())
	}

	if searcher.Count() != 9 {
		t.Errorf("expected count of 9, got %d", searcher.Count())
	}

	docMatch, err := searcher.Next()
	if err != nil {
		t.Errorf("expected result, got %v", err)
	}
	if docMatch.ID != "a" {
		t.Errorf("expected result ID to be 'a', got '%s", docMatch.ID)
	}
	docMatch, err = searcher.Advance("c")
	if err != nil {
		t.Errorf("expected result, got %v", err)
	}
	if docMatch.ID != "c" {
		t.Errorf("expected result ID to be 'c' got '%s'", docMatch.ID)
	}

	// try advancing past end
	docMatch, err = searcher.Advance("z")
	if err != nil {
		t.Fatal(err)
	}
	if docMatch != nil {
		t.Errorf("expected nil, got %v", docMatch)
	}

	// try pushing next past end
	docMatch, err = searcher.Next()
	if err != nil {
		t.Fatal(err)
	}
	if docMatch != nil {
		t.Errorf("expected nil, got %v", docMatch)
	}
}
Example #3
0
func CreateInMem() (store.KVStore, error) {
	return inmem.New()
}