Golang skynet.NewConsoleLogger函數代碼示例

func main() {
	config, _ := skynet.GetClientConfig()

	var err error
	config.Log = skynet.NewConsoleLogger("TestServiceClient", os.Stderr)

	client := client.NewClient(config)

	// This will not fail if no services currently exist, as connections are created on demand
	// this saves from chicken and egg issues with dependencies between services
	service := client.GetService("TestService", "", "", "") // any version, any region, any host

	// This on the other hand will fail if it can't find a service to connect to
	in := map[string]interface{}{
		"data": "Upcase me!!",
	}
	out := map[string]interface{}{}
	err = service.Send(nil, "Upcase", in, &out)

	if err != nil {
		fmt.Println(err)
		return
	}

	fmt.Println(out["data"].(string))

}

func initializeConfig(c *skynet.ServiceConfig) {
	if c.Log == nil {
		c.Log = skynet.NewConsoleLogger(os.Stderr)
	}

	if c.Name == "" {
		c.Name = "SkynetService"
	}

	if c.Version == "" {
		c.Version = "1"
	}

	if c.Region == "" {
		c.Region = "local"
	}

	if c.ServiceAddr.IPAddress == "" {
		c.ServiceAddr.IPAddress = "127.0.0.1"
	}

	if c.ServiceAddr.Port == 0 {
		c.ServiceAddr.Port = 9000
	}

	if c.DoozerConfig == nil {
		c.DoozerConfig = &skynet.DoozerConfig{
			Uri:          "127.0.0.1:8046",
			AutoDiscover: true,
		}
	}
}

func main() {
	f := NewFibonacci()

	config, _ := skynet.GetServiceConfigFromFlags()

	config.Name = "Fibonacci"
	config.Version = "1"
	config.Region = "Jersey"
	var err error
	mlogger, err := skynet.NewMongoLogger("localhost", "skynet", "log", config.UUID)
	clogger := skynet.NewConsoleLogger(os.Stdout)
	config.Log = skynet.NewMultiLogger(mlogger, clogger)
	if err != nil {
		config.Log.Item("Could not connect to mongo db for logging")
	}
	service := service.CreateService(f, config)

	// handle panic so that we remove ourselves from the pool in case of catastrophic failure
	defer func() {
		service.Shutdown()
		if err := recover(); err != nil {
			log.Println("Unrecovered error occured: ", err)
		}
	}()

	// If we pass false here service will not be Registered
	// we could do other work/tasks by implementing the Started method and calling Register() when we're ready
	waiter := service.Start(true)

	// waiting on the sync.WaitGroup returned by service.Start() will wait for the service to finish running.
	waiter.Wait()
}

func doSomething(q *client.Query, do func(*rpc.Client, skynet.Logger)) {

	log := skynet.NewConsoleLogger(os.Stderr)
	for _, instance := range q.FindInstances() {
		conn, err := net.Dial("tcp", instance.Config.AdminAddr.String())
		if err != nil {
			log.Item(err)
			continue
		}
		rpcClient := bsonrpc.NewClient(conn)
		do(rpcClient, log)
		conn.Close()
	}
}

func getDaemonServiceClient(q *client.Query) (c *client.Client, service *client.ServiceClient) {
	config, _ := skynet.GetClientConfigFromFlags(os.Args...)

	config.Log = skynet.NewConsoleLogger(os.Stderr)

	c = client.NewClient(config)

	registered := true
	query := &client.Query{
		DoozerConn: c.DoozerConn,
		Service:    "SkynetDaemon",
		//Host:       "127.0.0.1",
		Registered: &registered,
	}
	service = c.GetServiceFromQuery(query)
	return
}

// Daemon will run and maintain skynet services.
//
// Daemon will initially deploy those specified in the file given in the "-config" option
//
// Daemon will run the "SkynetDeployment" service, which can be used to remotely spawn
// new services on the host.
func main() {
	config, args := skynet.GetServiceConfig()
	config.Name = "SkynetDaemon"
	config.Version = "1"
	// skydaemon does not listen to admin RPC requests
	config.AdminAddr = nil

	var err error
	mlogger, err := skynet.NewMongoLogger("localhost", "skynet", "log", config.UUID)
	clogger := skynet.NewConsoleLogger("skydaemon", os.Stdout)
	config.Log = skynet.NewMultiLogger(mlogger, clogger)
	if err != nil {
		config.Log.Item("Could not connect to mongo db for logging")
	}

	deployment := &SkynetDaemon{
		Log:      config.Log,
		Services: map[string]*SubService{},
	}

	s := service.CreateService(deployment, config)

	deployment.Service = s

	// handle panic so that we remove ourselves from the pool in case of catastrophic failure
	/*defer func() {
		s.Shutdown()
		if err := recover(); err != nil {
			log.Println("Unrecovered error occured: ", err)
		}
	}()*/

	if len(args) == 1 {
		err := deployConfig(deployment, args[0])
		if err != nil {
			config.Log.Item(err)
		}
	}

	// If we pass false here service will not be Registered
	// we could do other work/tasks by implementing the Started method and calling Register() when we're ready
	s.Start(true).Wait()
}

func NewClient(config *skynet.ClientConfig) *Client {
	if config.Log == nil {
		config.Log = skynet.NewConsoleLogger(os.Stderr)
	}

	if config.ConnectionPoolSize == 0 {
		config.ConnectionPoolSize = 1
	}

	client := &Client{
		Config:     config,
		DoozerConn: skynet.NewDoozerConnectionFromConfig(*config.DoozerConfig, config.Log),
		Log:        config.Log,
	}

	client.Log.Item(config)

	client.DoozerConn.Connect()

	return client
}

func main() {
	var err error

	flag.Parse()

	log = skynet.NewConsoleLogger("dashboard", os.Stderr)
	if *mgoserver == "" {
		log.Item(skynet.MongoError{"", "No mongodb server url (both -mgoserver and SKYNET_MGOSERVER missing)"})
	}

	mlogger, err := skynet.NewMongoLogger(*mgoserver, "skynet", "log", skynet.UUID())
	if err != nil {
		log.Item(skynet.MongoError{Addr: "Could not connect to mongo db for logging", Err: err.Error()})
	}
	log = skynet.NewMultiLogger(mlogger, log)

	DC = Doozer()

	http.HandleFunc("/", indexHandler)
	http.HandleFunc("/logs/search", searchHandler)
	http.Handle("/media/", http.StripPrefix("/media/", http.FileServer(http.Dir(*webroot+"/tmpl"))))
	http.Handle("/favicon.ico", http.FileServer(http.Dir(*webroot+"/tmpl/images")))
	http.Handle("/logs/ws", websocket.Handler(wsHandler))

	im := client.NewInstanceMonitor(DC)
	http.Handle("/instances/ws", websocket.Handler(func(ws *websocket.Conn) {
		NewInstanceSocket(ws, im)
	}))

	// Cache templates
	layoutTmpl = template.Must(template.ParseFiles(*webroot + "/tmpl/layout.html.template"))
	indexTmpl = template.Must(template.ParseFiles(*webroot + "/tmpl/index.html.template"))
	searchTmpl = template.Must(template.ParseFiles(*webroot + "/tmpl/search.html.template"))

	err = http.ListenAndServe(*addr, nil)
	if err != nil {
		log.Panic("ListenAndServe: " + err.Error())
	}
}

func NewClient(config *skynet.ClientConfig) *Client {
	if config.Log == nil {
		config.Log = skynet.NewConsoleLogger(os.Stderr)
	}

	if config.ConnectionPoolSize == 0 {
		config.ConnectionPoolSize = 1
	}

	client := &Client{
		Config:       config,
		DoozerConn:   skynet.NewDoozerConnectionFromConfig(*config.DoozerConfig, config.Log),
		Log:          config.Log,
		servicePools: map[string]*servicePool{},
	}

	client.Log.Item(config)

	client.DoozerConn.Connect()

	client.instanceMonitor = NewInstanceMonitor(client.DoozerConn)

	return client
}

func NewClient(config *skynet.ClientConfig) *Client {
	if config.Log == nil {
		config.Log = skynet.NewConsoleLogger("skynet", os.Stderr)
	}

	if config.MaxConnectionsToInstance == 0 {
		panic("must have at least one connection allowed to an instance")
	}

	client := &Client{
		Config:       config,
		DoozerConn:   skynet.NewDoozerConnectionFromConfig(*config.DoozerConfig, config.Log),
		Log:          config.Log,
		servicePools: map[string]*servicePool{},
	}

	client.Log.Item(config)

	client.DoozerConn.Connect()

	client.instanceMonitor = NewInstanceMonitor(client.DoozerConn)

	return client
}

func main() {
	logger := skynet.NewConsoleLogger("Sky", os.Stdout)

	config = skynet.ClientConfig{
		DoozerConfig: &skynet.DoozerConfig{},
		Log:          logger,
	}
	skynet.FlagsForClient(&config, flagset)

	err := flagset.Parse(os.Args[1:])
	if err != nil {
		fmt.Println(err)
		return
	}

	query := &skynet.Query{
		DoozerConn: Doozer(config.DoozerConfig),
		Service:    *ServiceNameFlag,
		Version:    *VersionFlag,
		Host:       *HostFlag,
		Region:     *RegionFlag,
		Port:       *PortFlag,
	}

	fmt.Println(flagset.Args())

	switch flagset.Arg(0) {
	case "help", "h":
		CommandLineHelp()
	case "services":
		ListServices(query)
	case "hosts":
		ListHosts(query)
	case "regions":
		ListRegions(query)
	case "instances":
		ListInstances(query)
	case "versions":
		ListServiceVersions(query)
	case "topology":
		PrintTopology(query)
	case "register":
		Register(query)
	case "unregister":
		Unregister(query)
	case "stop":
		Stop(query)
	case "restart":
		Restart(query)
	case "deploy":
		args := flagset.Args()
		fmt.Println(args)
		if len(args) < 2 {
			fmt.Println("Usage: deploy <service path> <args>")
			return
		}

		Deploy(query, args[1], args[2:]...)

	case "cli":
		InteractiveShell()

	default:
		CommandLineHelp()
	}
}