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描述文字

Golang datas.NewDatabase函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了Golang中github.com/attic-labs/noms/go/datas.NewDatabase函数的典型用法代码示例。如果您正苦于以下问题：Golang NewDatabase函数的具体用法？Golang NewDatabase怎么用？Golang NewDatabase使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。



在下文中一共展示了NewDatabase函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Golang代码示例。

示例1: TestSync

func (s *testSuite) TestSync() {
	source1 := dataset.NewDataset(datas.NewDatabase(chunks.NewLevelDBStore(s.LdbDir, "", 1, false)), "foo")
	source1, err := source1.Commit(types.Number(42))
	s.NoError(err)
	source2, err := source1.Commit(types.Number(43))
	s.NoError(err)
	source1HeadRef := source1.Head().Hash()
	source2.Database().Close() // Close Database backing both Datasets

	sourceSpec := test_util.CreateValueSpecString("ldb", s.LdbDir, source1HeadRef.String())
	ldb2dir := path.Join(s.TempDir, "ldb2")
	sinkDatasetSpec := test_util.CreateValueSpecString("ldb", ldb2dir, "bar")
	out := s.Run(main, []string{sourceSpec, sinkDatasetSpec})
	s.Equal("", out)

	dest := dataset.NewDataset(datas.NewDatabase(chunks.NewLevelDBStore(ldb2dir, "", 1, false)), "bar")
	s.True(types.Number(42).Equals(dest.HeadValue()))
	dest.Database().Close()

	sourceDataset := test_util.CreateValueSpecString("ldb", s.LdbDir, "foo")
	out = s.Run(main, []string{sourceDataset, sinkDatasetSpec})
	s.Equal("", out)

	dest = dataset.NewDataset(datas.NewDatabase(chunks.NewLevelDBStore(ldb2dir, "", 1, false)), "bar")
	s.True(types.Number(43).Equals(dest.HeadValue()))
	dest.Database().Close()
}
开发者ID:willhite，项目名称:noms-old，代码行数:27，代码来源:noms_sync_test.go


示例2: Database

func (spec DatabaseSpec) Database() (ds datas.Database, err error) {
	switch spec.Protocol {
	case "http", "https":
		ds = datas.NewRemoteDatabase(spec.String(), "Bearer "+spec.accessToken)
	case "ldb":
		ds = datas.NewDatabase(chunks.NewLevelDBStoreUseFlags(spec.Path, ""))
	case "mem":
		ds = datas.NewDatabase(chunks.NewMemoryStore())
	default:
		err = fmt.Errorf("Invalid path prototocol: %s", spec.Protocol)
	}
	return
}
开发者ID:willhite，项目名称:noms-old，代码行数:13，代码来源:dataspec.go


示例3: TestCSVImporterFromBlob

func (s *testSuite) TestCSVImporterFromBlob() {
	test := func(pathFlag string) {
		defer os.RemoveAll(s.LdbDir)

		newDB := func() datas.Database {
			cs := chunks.NewLevelDBStore(s.LdbDir, "", 1, false)
			return datas.NewDatabase(cs)
		}

		db := newDB()
		rawDS := dataset.NewDataset(db, "raw")
		csv := &bytes.Buffer{}
		writeCSV(csv)
		rawDS.CommitValue(types.NewBlob(csv))
		db.Close()

		stdout, stderr := s.Run(main, []string{
			"--no-progress", "--column-types", "String,Number",
			pathFlag, spec.CreateValueSpecString("ldb", s.LdbDir, "raw.value"),
			spec.CreateValueSpecString("ldb", s.LdbDir, "csv"),
		})
		s.Equal("", stdout)
		s.Equal("", stderr)

		db = newDB()
		defer db.Close()
		csvDS := dataset.NewDataset(db, "csv")
		validateCSV(s, csvDS.HeadValue().(types.List))
	}
	test("--path")
	test("-p")
}
开发者ID:Richardphp，项目名称:noms，代码行数:32，代码来源:importer_test.go


示例4: TestReadRef

func TestReadRef(t *testing.T) {
	assert := assert.New(t)

	dir, err := ioutil.TempDir(os.TempDir(), "")
	assert.NoError(err)
	datasetId := "dsName"

	ldbPath := path.Join(dir, "/name")
	cs1 := chunks.NewLevelDBStoreUseFlags(ldbPath, "")
	database1 := datas.NewDatabase(cs1)
	dataset1 := dataset.NewDataset(database1, datasetId)
	commit := types.String("Commit Value")
	dataset1, err = dataset1.Commit(commit)
	assert.NoError(err)
	r1 := dataset1.Head().Hash()
	dataset1.Database().Close()

	spec2 := fmt.Sprintf("ldb:%s::%s", ldbPath, r1.String())
	sp2, err := ParsePathSpec(spec2)
	assert.NoError(err)
	database, v2, err := sp2.Value()
	assert.NoError(err)

	assert.EqualValues(r1.String(), v2.Hash().String())
	database.Close()
}
开发者ID:willhite，项目名称:noms-old，代码行数:26，代码来源:dataspec_test.go


示例5: TestCSVImporterWithPipe

func (s *testSuite) TestCSVImporterWithPipe() {
	input, err := ioutil.TempFile(s.TempDir, "")
	d.Chk.NoError(err)
	defer input.Close()
	defer os.Remove(input.Name())

	_, err = input.WriteString("a|b\n1|2\n")
	d.Chk.NoError(err)

	setName := "csv"
	dataspec := spec.CreateValueSpecString("ldb", s.LdbDir, setName)
	stdout, stderr := s.Run(main, []string{"--no-progress", "--column-types", "String,Number", "--delimiter", "|", input.Name(), dataspec})
	s.Equal("", stdout)
	s.Equal("", stderr)

	cs := chunks.NewLevelDBStore(s.LdbDir, "", 1, false)
	ds := dataset.NewDataset(datas.NewDatabase(cs), setName)
	defer ds.Database().Close()
	defer os.RemoveAll(s.LdbDir)

	l := ds.HeadValue().(types.List)
	s.Equal(uint64(1), l.Len())
	v := l.Get(0)
	st := v.(types.Struct)
	s.Equal(types.String("1"), st.Get("a"))
	s.Equal(types.Number(2), st.Get("b"))
}
开发者ID:Richardphp，项目名称:noms，代码行数:27，代码来源:importer_test.go


示例6: TestCSVImporterWithExternalHeader

func (s *testSuite) TestCSVImporterWithExternalHeader() {
	input, err := ioutil.TempFile(s.TempDir, "")
	d.Chk.NoError(err)
	defer input.Close()
	defer os.Remove(input.Name())

	_, err = input.WriteString("7,8\n")
	d.Chk.NoError(err)

	setName := "csv"
	dataspec := test_util.CreateValueSpecString("ldb", s.LdbDir, setName)
	out := s.Run(main, []string{"-no-progress", "-column-types", "String,Number", "-header", "x,y", dataspec, input.Name()})
	s.Equal("", out)

	cs := chunks.NewLevelDBStore(s.LdbDir, "", 1, false)
	ds := dataset.NewDataset(datas.NewDatabase(cs), setName)
	defer ds.Database().Close()
	defer os.RemoveAll(s.LdbDir)

	l := ds.HeadValue().(types.List)
	s.Equal(uint64(1), l.Len())
	v := l.Get(0)
	st := v.(types.Struct)
	s.Equal(types.String("7"), st.Get("x"))
	s.Equal(types.Number(8), st.Get("y"))
}
开发者ID:willhite，项目名称:noms-old，代码行数:26，代码来源:importer_test.go


示例7: TestCSVImporterToMap

func (s *testSuite) TestCSVImporterToMap() {
	input, err := ioutil.TempFile(s.TempDir, "")
	d.Chk.NoError(err)
	defer input.Close()
	defer os.Remove(input.Name())

	_, err = input.WriteString("a,b,c\n")
	d.Chk.NoError(err)
	for i := 0; i < 20; i++ {
		_, err = input.WriteString(fmt.Sprintf("a%d,%d,%d\n", i, i, i*2))
		d.Chk.NoError(err)
	}
	_, err = input.Seek(0, 0)
	d.Chk.NoError(err)

	setName := "csv"
	dataspec := test_util.CreateValueSpecString("ldb", s.LdbDir, setName)
	out := s.Run(main, []string{"-no-progress", "-column-types", "String,Number,Number", "-dest-type", "map:1", dataspec, input.Name()})
	s.Equal("", out)

	cs := chunks.NewLevelDBStore(s.LdbDir, "", 1, false)
	ds := dataset.NewDataset(datas.NewDatabase(cs), setName)
	defer ds.Database().Close()
	defer os.RemoveAll(s.LdbDir)

	m := ds.HeadValue().(types.Map)
	s.Equal(uint64(20), m.Len())

	for i := 0; i < 20; i++ {
		m.Get(types.Number(i)).(types.Struct).Equals(types.NewStruct("", map[string]types.Value{
			"a": types.String(fmt.Sprintf("a%d", i)),
			"c": types.Number(i * 2),
		}))
	}
}
开发者ID:willhite，项目名称:noms-old，代码行数:35，代码来源:importer_test.go


示例8: TestLDBDatabase

func TestLDBDatabase(t *testing.T) {
	assert := assert.New(t)

	d1 := os.TempDir()
	dir, err := ioutil.TempDir(d1, "flags")
	assert.NoError(err)
	ldbDir := path.Join(dir, "store")
	spec := fmt.Sprintf("ldb:%s", path.Join(dir, "store"))

	cs := chunks.NewLevelDBStoreUseFlags(ldbDir, "")
	ds := datas.NewDatabase(cs)

	s1 := types.String("A String")
	s1Ref := ds.WriteValue(s1)
	ds.Commit("testDs", datas.NewCommit().Set(datas.ValueField, s1Ref))
	ds.Close()

	sp, errRead := ParseDatabaseSpec(spec)
	assert.NoError(errRead)
	store, err := sp.Database()
	assert.NoError(err)
	assert.Equal(s1, store.ReadValue(s1.Hash()))
	store.Close()
	os.Remove(dir)
}
开发者ID:willhite，项目名称:noms-old，代码行数:25，代码来源:dataspec_test.go


示例9: TestCSVImportSkipRecordsCustomHeader

func (s *testSuite) TestCSVImportSkipRecordsCustomHeader() {
	input, err := ioutil.TempFile(s.TempDir, "")
	d.Chk.NoError(err)
	defer input.Close()
	defer os.Remove(input.Name())

	_, err = input.WriteString("a,b\n")
	d.Chk.NoError(err)

	_, err = input.WriteString("7,8\n")
	d.Chk.NoError(err)

	setName := "csv"
	dataspec := spec.CreateValueSpecString("ldb", s.LdbDir, setName)
	stdout, stderr := s.Run(main, []string{"--no-progress", "--skip-records", "1", "--header", "x,y", input.Name(), dataspec})
	s.Equal("", stdout)
	s.Equal("", stderr)

	cs := chunks.NewLevelDBStore(s.LdbDir, "", 1, false)
	ds := dataset.NewDataset(datas.NewDatabase(cs), setName)
	defer ds.Database().Close()
	defer os.RemoveAll(s.LdbDir)

	l := ds.HeadValue().(types.List)
	s.Equal(uint64(1), l.Len())
	v := l.Get(0)
	st := v.(types.Struct)
	s.Equal(types.String("7"), st.Get("x"))
	s.Equal(types.String("8"), st.Get("y"))
}
开发者ID:Richardphp，项目名称:noms，代码行数:30，代码来源:importer_test.go


示例10: TestReadToList

func TestReadToList(t *testing.T) {
	assert := assert.New(t)
	ds := datas.NewDatabase(chunks.NewMemoryStore())

	dataString := `a,1,true
b,2,false
`
	r := NewCSVReader(bytes.NewBufferString(dataString), ',')

	headers := []string{"A", "B", "C"}
	kinds := KindSlice{types.StringKind, types.NumberKind, types.BoolKind}
	l, typ := ReadToList(r, "test", headers, kinds, ds)

	assert.Equal(uint64(2), l.Len())

	assert.Equal(types.StructKind, typ.Kind())

	desc, ok := typ.Desc.(types.StructDesc)
	assert.True(ok)
	assert.Equal(desc.Len(), 3)
	assert.Equal(types.StringKind, desc.Field("A").Kind())
	assert.Equal(types.NumberKind, desc.Field("B").Kind())
	assert.Equal(types.BoolKind, desc.Field("C").Kind())

	assert.True(l.Get(0).(types.Struct).Get("A").Equals(types.String("a")))
	assert.True(l.Get(1).(types.Struct).Get("A").Equals(types.String("b")))

	assert.True(l.Get(0).(types.Struct).Get("B").Equals(types.Number(1)))
	assert.True(l.Get(1).(types.Struct).Get("B").Equals(types.Number(2)))

	assert.True(l.Get(0).(types.Struct).Get("C").Equals(types.Bool(true)))
	assert.True(l.Get(1).(types.Struct).Get("C").Equals(types.Bool(false)))
}
开发者ID:willhite，项目名称:noms-old，代码行数:33，代码来源:read_test.go


示例11: TestReadToMap

func TestReadToMap(t *testing.T) {
	assert := assert.New(t)
	ds := datas.NewDatabase(chunks.NewMemoryStore())

	dataString := `a,1,true
b,2,false
`
	r := NewCSVReader(bytes.NewBufferString(dataString), ',')

	headers := []string{"A", "B", "C"}
	kinds := KindSlice{types.StringKind, types.NumberKind, types.BoolKind}
	m := ReadToMap(r, headers, 0, kinds, ds)

	assert.Equal(uint64(2), m.Len())
	assert.True(m.Type().Equals(
		types.MakeMapType(types.StringType, types.MakeStructType("", map[string]*types.Type{
			"B": types.NumberType,
			"C": types.BoolType,
		}))))

	assert.True(m.Get(types.String("a")).Equals(types.NewStruct("", map[string]types.Value{
		"B": types.Number(1),
		"C": types.Bool(true),
	})))
	assert.True(m.Get(types.String("b")).Equals(types.NewStruct("", map[string]types.Value{
		"B": types.Number(2),
		"C": types.Bool(false),
	})))
}
开发者ID:willhite，项目名称:noms-old，代码行数:29，代码来源:read_test.go


示例12: TestLDBObject

func TestLDBObject(t *testing.T) {
	assert := assert.New(t)
	dir, err := ioutil.TempDir(os.TempDir(), "")
	assert.NoError(err)
	ldbpath := path.Join(dir, "xx-yy")
	dsId := "dsId"

	cs1 := chunks.NewLevelDBStoreUseFlags(ldbpath, "")
	store1 := datas.NewDatabase(cs1)
	dataset1 := dataset.NewDataset(store1, dsId)
	s1 := types.String("Commit Value")
	r1 := store1.WriteValue(s1)
	_, err = dataset1.Commit(r1)
	assert.NoError(err)
	store1.Close()

	spec2 := fmt.Sprintf("ldb:%s::%s", ldbpath, dsId)
	assert.NoError(err)
	sp1, err := ParseDatasetSpec(spec2)
	assert.NoError(err)
	dataset2, err := sp1.Dataset()
	assert.NoError(err)
	r2 := dataset2.HeadValue()
	s2 := r2.(types.Ref).TargetValue(dataset2.Database())
	assert.Equal(s1, s2)
	dataset2.Database().Close()

	spec3 := fmt.Sprintf("ldb:%s::%s", ldbpath, s1.Hash().String())
	sp3, err := ParsePathSpec(spec3)
	database, v3, err := sp3.Value()
	assert.Equal(s1, v3)
	database.Close()
}
开发者ID:willhite，项目名称:noms-old，代码行数:33，代码来源:dataspec_test.go


示例13: TestLDBDataset

func TestLDBDataset(t *testing.T) {
	assert := assert.New(t)

	dir, err := ioutil.TempDir(os.TempDir(), "")
	assert.NoError(err)
	ldbPath := path.Join(dir, "name")
	cs := chunks.NewLevelDBStoreUseFlags(ldbPath, "")
	ds := datas.NewDatabase(cs)
	id := "dsName"

	set := dataset.NewDataset(ds, id)
	commit := types.String("Commit Value")
	set, err = set.Commit(commit)
	assert.NoError(err)
	ds.Close()

	spec := fmt.Sprintf("ldb:%s::%s", ldbPath, id)
	sp, err := ParseDatasetSpec(spec)
	assert.NoError(err)
	dataset, err := sp.Dataset()
	assert.NoError(err)
	assert.EqualValues(commit, dataset.HeadValue())

	os.Remove(dir)
}
开发者ID:willhite，项目名称:noms-old，代码行数:25，代码来源:dataspec_test.go


示例14: TestWriteValue

func TestWriteValue(t *testing.T) {
	assert := assert.New(t)
	factory := chunks.NewMemoryStoreFactory()
	defer factory.Shutter()

	router = setupWebServer(factory)
	defer func() { router = nil }()

	testString := "Now, what?"
	authKey = "anauthkeyvalue"

	w := httptest.NewRecorder()
	r, err := newRequest("GET", dbName+constants.RootPath, nil)
	assert.NoError(err)
	router.ServeHTTP(w, r)
	lastRoot := w.Body
	assert.Equal(http.StatusOK, w.Code)

	tval := types.Bool(true)
	wval := types.String(testString)
	chunk1 := types.EncodeValue(tval, nil)
	chunk2 := types.EncodeValue(wval, nil)
	refList := types.NewList(types.NewRef(tval), types.NewRef(wval))
	chunk3 := types.EncodeValue(refList, nil)

	body := &bytes.Buffer{}
	// we would use this func, but it's private so use next line instead: serializeHints(body, map[ref.Ref]struct{}{hint: struct{}{}})
	err = binary.Write(body, binary.BigEndian, uint32(0))
	assert.NoError(err)

	chunks.Serialize(chunk1, body)
	chunks.Serialize(chunk2, body)
	chunks.Serialize(chunk3, body)

	w = httptest.NewRecorder()
	r, err = newRequest("POST", dbName+constants.WriteValuePath+"?access_token="+authKey, ioutil.NopCloser(body))
	assert.NoError(err)
	router.ServeHTTP(w, r)
	assert.Equal(http.StatusCreated, w.Code)

	w = httptest.NewRecorder()
	args := fmt.Sprintf("&last=%s&current=%s", lastRoot, types.NewRef(refList).TargetHash())
	r, _ = newRequest("POST", dbName+constants.RootPath+"?access_token="+authKey+args, ioutil.NopCloser(body))
	router.ServeHTTP(w, r)
	assert.Equal(http.StatusOK, w.Code)

	whash := wval.Hash()
	hints := map[hash.Hash]struct{}{whash: struct{}{}}
	rdr := buildGetRefsRequestBody(hints)
	r, _ = newRequest("POST", dbName+constants.GetRefsPath, rdr)
	r.Header.Add("Content-Type", "application/x-www-form-urlencoded")
	router.ServeHTTP(w, r)
	assert.Equal(http.StatusOK, w.Code)

	ms := chunks.NewMemoryStore()
	chunks.Deserialize(w.Body, ms, nil)
	v := types.DecodeValue(ms.Get(whash), datas.NewDatabase(ms))
	assert.Equal(testString, string(v.(types.String)))
}
开发者ID:kalman，项目名称:noms-pre-release，代码行数:59，代码来源:web_server_test.go


示例15: Database

func (spec databaseSpec) Database() (ds datas.Database, err error) {
	switch spec.Protocol {
	case "http", "https":
		err = d.Unwrap(d.Try(func() {
			ds = datas.NewRemoteDatabase(spec.String(), "Bearer "+spec.accessToken)
		}))
	case "ldb":
		err = d.Unwrap(d.Try(func() {
			ds = datas.NewDatabase(getLDBStore(spec.Path))
		}))
	case "mem":
		ds = datas.NewDatabase(chunks.NewMemoryStore())
	default:
		err = fmt.Errorf("Invalid path prototocol: %s", spec.Protocol)
	}
	return
}
开发者ID:Richardphp，项目名称:noms，代码行数:17，代码来源:dataspec.go


示例16: TestDuplicateHeaderName

func TestDuplicateHeaderName(t *testing.T) {
	assert := assert.New(t)
	ds := datas.NewDatabase(chunks.NewMemoryStore())
	dataString := "1,2\n3,4\n"
	r := NewCSVReader(bytes.NewBufferString(dataString), ',')
	headers := []string{"A", "A"}
	kinds := KindSlice{types.StringKind, types.StringKind}
	assert.Panics(func() { ReadToList(r, "test", headers, kinds, ds) })
}
开发者ID:willhite，项目名称:noms-old，代码行数:9，代码来源:read_test.go


示例17: TestCSVExporter

// FIXME: run with pipe
func (s *testSuite) TestCSVExporter() {
	setName := "csv"
	header := []string{"a", "b", "c"}
	payload := [][]string{
		[]string{"5", "7", "100"},
		[]string{"4", "10", "255"},
		[]string{"512", "12", "55"},
	}
	structName := "SomeStruct"

	// Setup data store
	cs := chunks.NewLevelDBStore(s.LdbDir, "", 1, false)
	ds := dataset.NewDataset(datas.NewDatabase(cs), setName)

	// Build Struct fields based on header
	f := make(types.TypeMap, len(header))
	for _, key := range header {
		f[key] = types.StringType
	}

	typ := types.MakeStructType(structName, f)

	// Build data rows
	structs := make([]types.Value, len(payload))
	for i, row := range payload {
		fields := make(map[string]types.Value)
		for j, v := range row {
			name := header[j]
			fields[name] = types.String(v)
		}
		structs[i] = types.NewStructWithType(typ, fields)
	}

	ds.Commit(types.NewList(structs...))
	ds.Database().Close()

	// Run exporter
	dataspec := test_util.CreateValueSpecString("ldb", s.LdbDir, setName)
	out := s.Run(main, []string{dataspec})

	// Verify output
	csvReader := csv.NewReader(strings.NewReader(out))

	row, err := csvReader.Read()
	d.Chk.NoError(err)
	s.Equal(header, row)

	for i := 0; i < len(payload); i++ {
		row, err := csvReader.Read()
		d.Chk.NoError(err)
		s.Equal(payload[i], row)
	}

	_, err = csvReader.Read()
	s.Equal(io.EOF, err)
}
开发者ID:willhite，项目名称:noms-old，代码行数:57，代码来源:exporter_test.go


示例18: TestEscapeFieldNames

func TestEscapeFieldNames(t *testing.T) {
	assert := assert.New(t)
	ds := datas.NewDatabase(chunks.NewMemoryStore())
	dataString := "1\n"
	r := NewCSVReader(bytes.NewBufferString(dataString), ',')
	headers := []string{"A A"}
	kinds := KindSlice{types.NumberKind}
	l, _ := ReadToList(r, "test", headers, kinds, ds)
	assert.Equal(uint64(1), l.Len())
	assert.Equal(types.Number(1), l.Get(0).(types.Struct).Get(types.EscapeStructField("A A")))
}
开发者ID:willhite，项目名称:noms-old，代码行数:11，代码来源:read_test.go


示例19: TestIdValidation

func TestIdValidation(t *testing.T) {
	assert := assert.New(t)
	store := datas.NewDatabase(chunks.NewMemoryStore())

	invalidDatasetNames := []string{" ", "", "a ", " a", "$", "#", ":", "\n", "💩"}
	for _, id := range invalidDatasetNames {
		assert.Panics(func() {
			NewDataset(store, id)
		})
	}
}
开发者ID:Richardphp，项目名称:noms，代码行数:11，代码来源:dataset_test.go


示例20: TestEmptyNomsDs

func (s *testSuite) TestEmptyNomsDs() {
	dir := s.LdbDir

	cs := chunks.NewLevelDBStore(dir+"/name", "", 24, false)
	ds := datas.NewDatabase(cs)

	ds.Close()

	dbSpec := test_util.CreateDatabaseSpecString("ldb", dir+"/name")
	rtnVal := s.Run(main, []string{dbSpec})
	s.Equal("", rtnVal)
}
开发者ID:willhite，项目名称:noms-old，代码行数:12，代码来源:noms_ds_test.go



注：本文中的github.com/attic-labs/noms/go/datas.NewDatabase函数示例整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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