Exemplo n.º 1
0
func LinkBench() {
	var db = loge.NewLogeDB(loge.NewLevelDBStore("data/linkbench"))
	defer db.Close()

	db.CreateType(loge.NewTypeDef("person", 1, &Person{}))

	var petDef = loge.NewTypeDef("pet", 1, &Pet{})
	petDef.Links = loge.LinkSpec{"owner": "person"}
	db.CreateType(petDef)

	fmt.Printf("Inserting...\n")

	db.Transact(func(t *loge.Transaction) {
		t.Set("person", "Brendon", &Person{"Brendon", 31, []uint16{}})
		for i := 0; i < 10000; i++ {
			var key = fmt.Sprintf("pet-%04d", i)
			t.Set("pet", loge.LogeKey(key), &Pet{key, "dog"})
			t.AddLink("pet", "owner", loge.LogeKey(key), "Brendon")
		}
	}, 0)

	fmt.Printf("Finding...\n")

	var count = 0

	db.Transact(func(t *loge.Transaction) {
		var pets = t.Find("pet", "owner", "Brendon")

		for pets.Valid() {
			pets.Next()
			count++
		}
	}, 0)

	fmt.Printf("Found %d pets\n", count)

	count = 0

	var lastPet loge.LogeKey = ""

	var loops = 0
	for loops < 1000 {
		db.Transact(func(t *loge.Transaction) {
			var somePets = t.FindSlice("pet", "owner", "Brendon", lastPet, 100)
			for somePets.Valid() {
				lastPet = somePets.Next()
				count++
			}
		}, 0)
		loops++
	}

	fmt.Printf("Sliced %d pets\n", count)
}
Exemplo n.º 2
0
func LinkSandbox() {
	var db = loge.NewLogeDB(loge.NewLevelDBStore("data/links"))
	defer db.Close()

	db.CreateType(loge.NewTypeDef("person", 1, &Person{}))

	var petDef = loge.NewTypeDef("pet", 1, &Pet{})
	petDef.Links = loge.LinkSpec{"owner": "person"}
	db.CreateType(petDef)

	db.Transact(func(t *loge.Transaction) {
		t.Set("person", "Brendon", &Person{"Brendon", 31, []uint16{}})
		t.Set("person", "Mike", &Person{"Mike", 38, []uint16{}})
		t.Set("pet", "Ted", &Pet{"Ted", "dog"})
		t.Set("pet", "Bones", &Pet{"Bones", "dog"})
		t.Set("pet", "BaoBao", &Pet{"BaoBao", "dog"})
		t.Set("pet", "Ruby", &Pet{"Ruby", "dog"})
		t.Set("pet", "HenYou", &Pet{"HenYou", "dog"})
		t.Set("pet", "Garcon", &Pet{"Garcon", "dog"})
		t.Set("pet", "Flower", &Pet{"Flower", "cat"})

		t.SetLinks("pet", "owner", "Ted", []loge.LogeKey{"Brendon"})
		t.SetLinks("pet", "owner", "Bones", []loge.LogeKey{"Brendon"})
		t.SetLinks("pet", "owner", "BaoBao", []loge.LogeKey{"Brendon"})
		t.SetLinks("pet", "owner", "Ruby", []loge.LogeKey{"Brendon"})
		t.SetLinks("pet", "owner", "HenYou", []loge.LogeKey{"Mike"})
		t.SetLinks("pet", "owner", "Garcon", []loge.LogeKey{"Mike"})
		t.SetLinks("pet", "owner", "Flower", []loge.LogeKey{"Mike"})
	}, 0)

	db.Transact(func(t *loge.Transaction) {
		t.RemoveLink("pet", "owner", "Ruby", "Brendon")
		t.AddLink("pet", "owner", "Ruby", "Mike")
	}, 0)

	db.Transact(func(t *loge.Transaction) {
		fmt.Printf("Ruby links: %v\n", t.ReadLinks("pet", "owner", "Ruby"))
	}, 0)

	for _, pet := range db.Find("pet", "owner", "Brendon") {
		fmt.Printf("Found Brendon pet: %s\n", pet)
	}

	for _, pet := range db.Find("pet", "owner", "Mike") {
		fmt.Printf("Found Mike pet: %s\n", pet)
	}

	for _, pet := range db.Find("pet", "owner", "Nai") {
		fmt.Printf("Found Nai pet: %s\n", pet)
	}

	fmt.Printf("Done\n")
}
Exemplo n.º 3
0
func DoWrite(cores int, idx int) {
	var db = loge.NewLogeDB(loge.NewLevelDBStore(fmt.Sprintf("data/bench%d", idx)))
	defer db.Close()
	db.CreateType(loge.NewTypeDef("person", 1, &Person{}))

	var startTime = time.Now()

	var tokens = make(chan bool, cores)
	for i := 0; i < cores; i++ {
		tokens <- true
	}

	for startId := 0; startId < TOTAL; startId += BATCH_SIZE {
		<-tokens
		var endId = startId + BATCH_SIZE - 1
		if endId >= TOTAL {
			endId = TOTAL - 1
		}
		go WritePeopleBatch(db, startId, endId, tokens)
	}

	for i := 0; i < cores; i++ {
		<-tokens
	}

	fmt.Printf("Done in %v\n", time.Since(startTime))

	fmt.Printf("Flushed\n")

}
Exemplo n.º 4
0
func Example() {
	var db = loge.NewLogeDB(loge.NewLevelDBStore("data/example"))
	db.CreateType(loge.NewTypeDef("person", 1, &Person{}))

	// ------------------------------------
	// Create an object

	db.Transact(func(trans *loge.Transaction) {
		trans.Set("person", "brendon", &Person{Name: "Brendon", Age: 31})
	}, 0)

	// ------------------------------------
	// Load some objects

	db.Transact(func(trans *loge.Transaction) {
		if trans.Exists("person", "brendon") {
			var brendon = trans.Write("person", "brendon").(*Person)

			fmt.Printf("Existing Brendon: %v\n", brendon)

			// Update
			brendon.Age = 41
		}

		var defaultObj = trans.Read("person", "someone else").(*Person)
		fmt.Printf("Default value: %v\n", defaultObj)
	}, 0)

	// ------------------------------------
	// Check the update

	db.Transact(func(trans *loge.Transaction) {
		var brendon = trans.Read("person", "brendon").(*Person)
		fmt.Printf("Updated Brendon: %v\n", brendon)
	}, 0)

	// ------------------------------------
	// Intermingle transactions

	var trans1 = db.CreateTransaction()
	var trans2 = db.CreateTransaction()

	trans1.Set("person", "nai", &Person{Name: "Nai Yu", Age: 32})
	trans2.Set("person", "nai", &Person{Name: "Not Nai Yu", Age: 16})

	fmt.Printf("Commit 1: %v\n", trans1.Commit())
	fmt.Printf("Commit 2: %v\n", trans2.Commit())

	// ------------------------------------
	// Check which succeeded

	db.Transact(func(trans *loge.Transaction) {
		var nai = trans.Read("person", "nai")
		fmt.Printf("Nai: %v\n", nai)
	}, 0)
}
Exemplo n.º 5
0
func Sandbox() {
	var db = loge.NewLogeDB(loge.NewLevelDBStore("data/sandbox"))

	db.CreateType(loge.NewTypeDef("person", 1, &Version0{}))

	db.SetOne("person", "brendon", &Version0{"Brendon"})
	fmt.Printf("Version 0: %v\n", db.ReadOne("person", "brendon"))

	var def2 = loge.NewTypeDef("person", 2, &Version1{})
	def2.Upgrader = func(v0 interface{}) (interface{}, error) {
		var obj = v0.(*Version0)
		return &Version1{obj.Name, 18}, nil
	}
	db.CreateType(def2)

	fmt.Printf("Version 1: %v\n", db.ReadOne("person", "brendon"))
	fmt.Printf("Version 1: %v\n", db.ReadOne("person", "brendon"))
	fmt.Printf("Version 1: %v\n", db.ReadOne("person", "brendon"))

}
Exemplo n.º 6
0
func StartService() {
	var db = loge.NewLogeDB(loge.NewLevelDBStore("data/links"))
	defer db.Close()

	db.CreateType(loge.NewTypeDef("person", 1, &Person{}))

	var petDef = loge.NewTypeDef("pet", 1, &Pet{})
	petDef.Links = loge.LinkSpec{"owner": "person"}
	db.CreateType(petDef)

	var serviceCollection = goservice.NewServiceCollection()
	serviceCollection.AddService(loge.GetService())

	var server = &context{
		*goservice.NewServer(
			serviceCollection,
			goservice.BasicSessionCreator),
		db,
	}

	server.AddEndpoint(goservice.NewHttpRpcEndpoint(":6060", server, nil))
	server.AddEndpoint(goservice.NewTelnetEndpoint(":6061", server))

	server.Log("Server starting...")

	var stopper = make(chan os.Signal, 1)
	signal.Notify(stopper)

	server.Start()
	defer server.Stop()

	<-stopper
	close(stopper)

	fmt.Printf("\n")
	server.Log("Server stopping...")
}