Golang graph.Options类代码示例

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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/google/cayley/graph.Options类的典型用法代码示例。如果您正苦于以下问题：Golang Options类的具体用法？Golang Options怎么用？Golang Options使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。

在下文中一共展示了Options类的16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: newQuadStore

func newQuadStore(path string, options graph.Options) (graph.QuadStore, error) {
	var qs QuadStore
	var err error
	db, err := bolt.Open(path, 0600, nil)
	if err != nil {
		glog.Errorln("Error, couldn't open! ", err)
		return nil, err
	}
	qs.db = db
	// BoolKey returns false on non-existence. IE, Sync by default.
	qs.db.NoSync, _, err = options.BoolKey("nosync")
	if err != nil {
		return nil, err
	}
	err = qs.getMetadata()
	if err == errNoBucket {
		return nil, errors.New("bolt: quadstore has not been initialised")
	} else if err != nil {
		return nil, err
	}
	if qs.version != latestDataVersion {
		return nil, errors.New("bolt: data version is out of date. Run cayleyupgrade for your config to update the data.")
	}
	return &qs, nil
}

开发者ID:dennwc，项目名称:cayley，代码行数:25，代码来源:quadstore.go

示例2: createNewMongoGraph

func createNewMongoGraph(addr string, options graph.Options) error {
	conn, err := mgo.Dial(addr)
	if err != nil {
		return err
	}
	conn.SetSafe(&mgo.Safe{})
	dbName := DefaultDBName
	if val, ok := options.StringKey("database_name"); ok {
		dbName = val
	}
	db := conn.DB(dbName)
	indexOpts := mgo.Index{
		Key:        []string{"Sub"},
		Unique:     false,
		DropDups:   false,
		Background: true,
		Sparse:     true,
	}
	db.C("triples").EnsureIndex(indexOpts)
	indexOpts.Key = []string{"Pred"}
	db.C("triples").EnsureIndex(indexOpts)
	indexOpts.Key = []string{"Obj"}
	db.C("triples").EnsureIndex(indexOpts)
	indexOpts.Key = []string{"Label"}
	db.C("triples").EnsureIndex(indexOpts)
	return nil
}

开发者ID:neevor，项目名称:cayley，代码行数:27，代码来源:triplestore.go

示例3: newTripleStore

func newTripleStore(path string, options graph.Options) (graph.TripleStore, error) {
	var ts TripleStore
	ts.path = path
	cache_size := DefaultCacheSize
	if val, ok := options.IntKey("cache_size_mb"); ok {
		cache_size = val
	}
	ts.dbOpts = &opt.Options{
		BlockCache: cache.NewLRUCache(cache_size * opt.MiB),
	}
	ts.dbOpts.ErrorIfMissing = true

	write_buffer_mb := DefaultWriteBufferSize
	if val, ok := options.IntKey("write_buffer_mb"); ok {
		write_buffer_mb = val
	}
	ts.dbOpts.WriteBuffer = write_buffer_mb * opt.MiB
	ts.hasher = sha1.New()
	ts.writeopts = &opt.WriteOptions{
		Sync: false,
	}
	ts.readopts = &opt.ReadOptions{}
	db, err := leveldb.OpenFile(ts.path, ts.dbOpts)
	if err != nil {
		panic("Error, couldn't open! " + err.Error())
	}
	ts.db = db
	glog.Infoln(ts.GetStats())
	ts.getSize()
	return &ts, nil
}

开发者ID:ZSIT，项目名称:cayley，代码行数:31，代码来源:triplestore.go

示例4: newTripleStore

func newTripleStore(path string, options graph.Options) (graph.TripleStore, error) {
	var qs TripleStore
	var err error
	qs.path = path
	cache_size := DefaultCacheSize
	if val, ok := options.IntKey("cache_size_mb"); ok {
		cache_size = val
	}
	qs.dbOpts = &opt.Options{
		BlockCache: cache.NewLRUCache(cache_size * opt.MiB),
	}
	qs.dbOpts.ErrorIfMissing = true

	write_buffer_mb := DefaultWriteBufferSize
	if val, ok := options.IntKey("write_buffer_mb"); ok {
		write_buffer_mb = val
	}
	qs.dbOpts.WriteBuffer = write_buffer_mb * opt.MiB
	qs.writeopts = &opt.WriteOptions{
		Sync: false,
	}
	qs.readopts = &opt.ReadOptions{}
	db, err := leveldb.OpenFile(qs.path, qs.dbOpts)
	if err != nil {
		glog.Errorln("Error, couldn't open! ", err)
		return nil, err
	}
	qs.db = db
	glog.Infoln(qs.GetStats())
	err = qs.getMetadata()
	if err != nil {
		return nil, err
	}
	return &qs, nil
}

开发者ID:Joeento，项目名称:cayley，代码行数:35，代码来源:triplestore.go

示例5: CreateNewMongoGraph

func CreateNewMongoGraph(addr string, options graph.Options) bool {
	conn, err := mgo.Dial(addr)
	if err != nil {
		glog.Fatal("Error connecting: ", err)
		return false
	}
	conn.SetSafe(&mgo.Safe{})
	dbName := DefaultDBName
	if val, ok := options.StringKey("database_name"); ok {
		dbName = val
	}
	db := conn.DB(dbName)
	indexOpts := mgo.Index{
		Key:        []string{"Sub"},
		Unique:     false,
		DropDups:   false,
		Background: true,
		Sparse:     true,
	}
	db.C("triples").EnsureIndex(indexOpts)
	indexOpts.Key = []string{"Pred"}
	db.C("triples").EnsureIndex(indexOpts)
	indexOpts.Key = []string{"Obj"}
	db.C("triples").EnsureIndex(indexOpts)
	indexOpts.Key = []string{"Provenance"}
	db.C("triples").EnsureIndex(indexOpts)
	return true
}

开发者ID:horryq，项目名称:cayley，代码行数:28，代码来源:triplestore.go

示例6: NewSingleReplication

func NewSingleReplication(qs graph.QuadStore, opts graph.Options) (graph.QuadWriter, error) {
	var (
		ignoreMissing   bool
		ignoreDuplicate bool
		err             error
	)

	if *graph.IgnoreMissing {
		ignoreMissing = true
	} else {
		ignoreMissing, _, err = opts.BoolKey("ignore_missing")
		if err != nil {
			return nil, err
		}
	}

	if *graph.IgnoreDup {
		ignoreDuplicate = true
	} else {
		ignoreDuplicate, _, err = opts.BoolKey("ignore_duplicate")
		if err != nil {
			return nil, err
		}
	}

	return &Single{
		currentID: qs.Horizon(),
		qs:        qs,
		ignoreOpts: graph.IgnoreOpts{
			IgnoreDup:     ignoreDuplicate,
			IgnoreMissing: ignoreMissing,
		},
	}, nil
}

开发者ID:e4x，项目名称:cayley，代码行数:34，代码来源:single.go

示例7: newQuadStore

func newQuadStore(addr string, options graph.Options) (graph.QuadStore, error) {
	var qs QuadStore
	conn, err := connectSQLTables(addr, options)
	if err != nil {
		return nil, err
	}
	localOpt, localOptOk, err := options.BoolKey("local_optimize")
	if err != nil {
		return nil, err
	}
	qs.db = conn
	qs.sqlFlavor = "postgres"
	qs.size = -1
	qs.lru = newCache(1024)

	// Skip size checking by default.
	qs.noSizes = true
	if localOptOk {
		if localOpt {
			qs.noSizes = false
		}
	}
	qs.useEstimates, _, err = options.BoolKey("use_estimates")
	if err != nil {
		return nil, err
	}

	return &qs, nil
}

开发者ID:WeiZhang555，项目名称:clair，代码行数:29，代码来源:quadstore.go

示例8: createSQLTables

func createSQLTables(addr string, options graph.Options) error {
	conn, err := connectSQLTables(addr, options)
	if err != nil {
		return err
	}
	defer conn.Close()
	tx, err := conn.Begin()
	if err != nil {
		glog.Errorf("Couldn't begin creation transaction: %s", err)
		return err
	}

	table, err := tx.Exec(nodesTableStatement)
	if err != nil {
		tx.Rollback()
		errd := err.(*pq.Error)
		if errd.Code == "42P07" {
			return graph.ErrDatabaseExists
		}
		glog.Errorf("Cannot create nodes table: %v", table)
		return err
	}
	table, err = tx.Exec(`
	CREATE TABLE quads (
		horizon BIGSERIAL PRIMARY KEY,
		subject_hash BYTEA NOT NULL,
		predicate_hash BYTEA NOT NULL,
		object_hash BYTEA NOT NULL,
		label_hash BYTEA,
		id BIGINT,
		ts timestamp
	);`)
	if err != nil {
		tx.Rollback()
		errd := err.(*pq.Error)
		if errd.Code == "42P07" {
			return graph.ErrDatabaseExists
		}
		glog.Errorf("Cannot create quad table: %v", table)
		return err
	}
	factor, factorOk, err := options.IntKey("db_fill_factor")
	if !factorOk {
		factor = defaultFillFactor
	}
	spoIndexes := quadsSecondaryIndexes(factor)

	var index sql.Result
	index, err = tx.Exec(quadsUniqueIndex + quadsForeignIndex + spoIndexes)
	if err != nil {
		glog.Errorf("Cannot create indices: %v", index)
		tx.Rollback()
		return err
	}
	tx.Commit()
	return nil
}

开发者ID:dennwc，项目名称:cayley，代码行数:57，代码来源:quadstore.go

示例9: createSQLTables

func createSQLTables(addr string, options graph.Options) error {
	conn, err := connectSQLTables(addr, options)
	if err != nil {
		return err
	}
	defer conn.Close()
	tx, err := conn.Begin()
	if err != nil {
		glog.Errorf("Couldn't begin creation transaction: %s", err)
		return err
	}

	quadTable, err := tx.Exec(`
	CREATE TABLE quads (
		subject TEXT NOT NULL,
		predicate TEXT NOT NULL,
		object TEXT NOT NULL,
		label TEXT,
		horizon BIGSERIAL PRIMARY KEY,
		id BIGINT,
		ts timestamp,
		subject_hash TEXT NOT NULL,
		predicate_hash TEXT NOT NULL,
		object_hash TEXT NOT NULL,
		label_hash TEXT,
		UNIQUE(subject_hash, predicate_hash, object_hash, label_hash)
	);`)
	if err != nil {
		tx.Rollback()
		errd := err.(*pq.Error)
		if errd.Code == "42P07" {
			return graph.ErrDatabaseExists
		}
		glog.Errorf("Cannot create quad table: %v", quadTable)
		return err
	}
	factor, factorOk, err := options.IntKey("db_fill_factor")
	if !factorOk {
		factor = 50
	}
	var index sql.Result

	index, err = tx.Exec(fmt.Sprintf(`
	CREATE INDEX spo_index ON quads (subject_hash) WITH (FILLFACTOR = %d);
	CREATE INDEX pos_index ON quads (predicate_hash) WITH (FILLFACTOR = %d);
	CREATE INDEX osp_index ON quads (object_hash) WITH (FILLFACTOR = %d);
	`, factor, factor, factor))
	if err != nil {
		glog.Errorf("Cannot create indices: %v", index)
		tx.Rollback()
		return err
	}
	tx.Commit()
	return nil
}

开发者ID:e4x，项目名称:cayley，代码行数:55，代码来源:quadstore.go

示例10: createNewMongoGraph

func createNewMongoGraph(addr string, options graph.Options) error {
	conn, err := mgo.Dial(addr)
	if err != nil {
		return err
	}
	defer conn.Close()
	conn.SetSafe(&mgo.Safe{})
	dbName := DefaultDBName
	val, ok, err := options.StringKey("database_name")
	if err != nil {
		return err
	} else if ok {
		dbName = val
	}
	db := conn.DB(dbName)
	return ensureIndexes(db)
}

开发者ID:dennwc，项目名称:cayley，代码行数:17，代码来源:quadstore.go

示例11: NewTripleStore

func NewTripleStore(addr string, options graph.Options) *TripleStore {
	var ts TripleStore
	conn, err := mgo.Dial(addr)
	if err != nil {
		glog.Fatal("Error connecting: ", err)
	}
	conn.SetSafe(&mgo.Safe{})
	dbName := DefaultDBName
	if val, ok := options.StringKey("database_name"); ok {
		dbName = val
	}
	ts.db = conn.DB(dbName)
	ts.session = conn
	ts.hasher = sha1.New()
	ts.idCache = NewIDLru(1 << 16)
	return &ts
}

开发者ID:horryq，项目名称:cayley，代码行数:17，代码来源:triplestore.go

示例12: newQuadStore

func newQuadStore(path string, options graph.Options) (graph.QuadStore, error) {
	var qs QuadStore
	var err error
	db, err := bolt.Open(path, 0600, nil)
	if err != nil {
		glog.Errorln("Error, couldn't open! ", err)
		return nil, err
	}
	qs.db = db
	// BoolKey returns false on non-existence. IE, Sync by default.
	qs.db.NoSync, _ = options.BoolKey("nosync")
	err = qs.getMetadata()
	if err != nil {
		return nil, err
	}
	return &qs, nil
}

开发者ID:ericcapricorn，项目名称:cayley，代码行数:17，代码来源:quadstore.go

示例13: newQuadStore

func newQuadStore(addr string, options graph.Options) (graph.QuadStore, error) {
	var qs QuadStore
	conn, err := mgo.Dial(addr)
	if err != nil {
		return nil, err
	}
	conn.SetSafe(&mgo.Safe{})
	dbName := DefaultDBName
	val, ok, err := options.StringKey("database_name")
	if err != nil {
		return nil, err
	} else if ok {
		dbName = val
	}
	qs.db = conn.DB(dbName)
	qs.session = conn
	qs.ids = newCache(1 << 16)
	qs.sizes = newCache(1 << 16)
	return &qs, nil
}

开发者ID:oliverp19，项目名称:cayley，代码行数:20，代码来源:quadstore.go

示例14: newQuadStore

func newQuadStore(path string, options graph.Options) (graph.QuadStore, error) {
	var qs QuadStore
	var err error
	qs.path = path
	cacheSize := DefaultCacheSize
	val, ok, err := options.IntKey("cache_size_mb")
	if err != nil {
		return nil, err
	} else if ok {
		cacheSize = val
	}
	qs.dbOpts = &opt.Options{
		BlockCacheCapacity: cacheSize * opt.MiB,
	}
	qs.dbOpts.ErrorIfMissing = true

	writeBufferSize := DefaultWriteBufferSize
	val, ok, err = options.IntKey("writeBufferSize")
	if err != nil {
		return nil, err
	} else if ok {
		writeBufferSize = val
	}
	qs.dbOpts.WriteBuffer = writeBufferSize * opt.MiB
	qs.writeopts = &opt.WriteOptions{
		Sync: false,
	}
	qs.readopts = &opt.ReadOptions{}
	db, err := leveldb.OpenFile(qs.path, qs.dbOpts)
	if err != nil {
		glog.Errorln("Error, could not open! ", err)
		return nil, err
	}
	qs.db = db
	glog.Infoln(qs.GetStats())
	err = qs.getMetadata()
	if err != nil {
		return nil, err
	}
	return &qs, nil
}

开发者ID:e4x，项目名称:cayley，代码行数:41，代码来源:quadstore.go

示例15: createNewMongoGraph

func createNewMongoGraph(addr string, options graph.Options) error {
	conn, err := mgo.Dial(addr)
	if err != nil {
		return err
	}
	conn.SetSafe(&mgo.Safe{})
	dbName := DefaultDBName
	val, ok, err := options.StringKey("database_name")
	if err != nil {
		return err
	} else if ok {
		dbName = val
	}
	db := conn.DB(dbName)
	indexOpts := mgo.Index{
		Key:        []string{"subject"},
		Unique:     false,
		DropDups:   false,
		Background: true,
		Sparse:     true,
	}
	db.C("quads").EnsureIndex(indexOpts)
	indexOpts.Key = []string{"predicate"}
	db.C("quads").EnsureIndex(indexOpts)
	indexOpts.Key = []string{"object"}
	db.C("quads").EnsureIndex(indexOpts)
	indexOpts.Key = []string{"label"}
	db.C("quads").EnsureIndex(indexOpts)
	logOpts := mgo.Index{
		Key:        []string{"LogID"},
		Unique:     true,
		DropDups:   false,
		Background: true,
		Sparse:     true,
	}
	db.C("log").EnsureIndex(logOpts)
	return nil
}

开发者ID:oliverp19，项目名称:cayley，代码行数:38，代码来源:quadstore.go

示例16: createLMDB

func createLMDB(path string, opt graph.Options) (env *lmdb.Env, err error) {
	err = os.Mkdir(path, 0700)
	if err != nil && !os.IsExist(err) {
		return nil, err
	}

	env, err = lmdb.NewEnv()
	if err != nil {
		return env, err
	}
	defer func() {
		if err != nil {
			env.Close()
			env = nil
		}
	}()

	maxreaders, _, err := opt.IntKey("maxreaders")
	if err != nil {
		return nil, err
	}
	if maxreaders > 0 {
		err = env.SetMaxReaders(maxreaders)
		if err != nil {
			return nil, err
		}
	}

	maxdbs, _, err := opt.IntKey("maxdbs")
	if err != nil {
		return nil, err
	}
	if maxdbs == 0 {
		maxdbs = 7
	}
	err = env.SetMaxDBs(maxdbs)
	if err != nil {
		return nil, err
	}

	mapsize, _, err := opt.IntKey("mapsize")
	if err != nil {
		return nil, err
	}
	err = env.SetMapSize(int64(mapsize))
	if err != nil {
		return nil, err
	}

	var flags uint
	dbnosync, _, err := opt.BoolKey("nosync")
	if err != nil {
		return nil, err
	}
	if dbnosync {
		flags |= lmdb.NoSync
	}
	err = env.Open(path, flags, 0600)
	if err != nil {
		return nil, err
	}

	return env, nil
}

开发者ID:bmatsuo，项目名称:cayley，代码行数:64，代码来源:quadstore.go

注：本文中的github.com/google/cayley/graph.Options类示例整理自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。