Golang Server.RpcRegister方法代码示例

//.........这里部分代码省略.........
	server := new(engine.Server)

	// Async starts here, will follow cgrates.json start order
	exitChan := make(chan bool)

	// Define internal connections via channels
	internalBalancerChan := make(chan *balancer2go.Balancer, 1)
	internalRaterChan := make(chan *engine.Responder, 1)
	internalSchedulerChan := make(chan *scheduler.Scheduler, 1)
	internalCdrSChan := make(chan *engine.CdrServer, 1)
	internalCdrStatSChan := make(chan engine.StatsInterface, 1)
	internalHistorySChan := make(chan history.Scribe, 1)
	internalPubSubSChan := make(chan engine.PublisherSubscriber, 1)
	internalUserSChan := make(chan engine.UserService, 1)
	internalAliaseSChan := make(chan engine.AliasService, 1)

	// Start balancer service
	if cfg.BalancerEnabled {
		go startBalancer(internalBalancerChan, &stopHandled, exitChan) // Not really needed async here but to cope with uniformity
	}

	// Start rater service
	if cfg.RaterEnabled {
		go startRater(internalRaterChan, internalBalancerChan, internalSchedulerChan, internalCdrStatSChan, internalHistorySChan, internalPubSubSChan, internalUserSChan, internalAliaseSChan,
			server, ratingDb, accountDb, loadDb, cdrDb, logDb, &stopHandled, exitChan)
	}

	// Start Scheduler
	if cfg.SchedulerEnabled {
		go startScheduler(internalSchedulerChan, ratingDb, exitChan)
	}

	// Start CDR Server
	if cfg.CDRSEnabled {
		go startCDRS(internalCdrSChan, logDb, cdrDb, internalRaterChan, internalPubSubSChan, internalUserSChan, internalAliaseSChan, internalCdrStatSChan, server, exitChan)
	}

	// Start CDR Stats server
	if cfg.CDRStatsEnabled {
		go startCdrStats(internalCdrStatSChan, ratingDb, accountDb, server)
	}

	// Start CDRC components if necessary
	go startCdrcs(internalCdrSChan, internalRaterChan, exitChan)

	// Start SM-FreeSWITCH
	if cfg.SmFsConfig.Enabled {
		go startSmFreeSWITCH(internalRaterChan, cdrDb, exitChan)
		// close all sessions on shutdown
		go shutdownSessionmanagerSingnalHandler(exitChan)
	}

	// Start SM-Kamailio
	if cfg.SmKamConfig.Enabled {
		go startSmKamailio(internalRaterChan, cdrDb, exitChan)
	}

	// Start SM-OpenSIPS
	if cfg.SmOsipsConfig.Enabled {
		go startSmOpenSIPS(internalRaterChan, cdrDb, exitChan)
	}

	// Register session manager service // FixMe: make sure this is thread safe
	if cfg.SmFsConfig.Enabled || cfg.SmKamConfig.Enabled || cfg.SmOsipsConfig.Enabled { // Register SessionManagerV1 service
		smRpc = new(v1.SessionManagerV1)
		server.RpcRegister(smRpc)
	}

	// Start HistoryS service
	if cfg.HistoryServerEnabled {
		go startHistoryServer(internalHistorySChan, server, exitChan)
	}

	// Start PubSubS service
	if cfg.PubSubServerEnabled {
		go startPubSubServer(internalPubSubSChan, accountDb, server)
	}

	// Start Aliases service
	if cfg.AliasesServerEnabled {
		go startAliasesServer(internalAliaseSChan, accountDb, server, exitChan)
	}

	// Start users service
	if cfg.UserServerEnabled {
		go startUsersServer(internalUserSChan, accountDb, server, exitChan)
	}

	// Serve rpc connections
	go startRpc(server, internalRaterChan, internalCdrSChan, internalCdrStatSChan, internalHistorySChan,
		internalPubSubSChan, internalUserSChan, internalAliaseSChan)
	<-exitChan

	if *pidFile != "" {
		if err := os.Remove(*pidFile); err != nil {
			utils.Logger.Warning("Could not remove pid file: " + err.Error())
		}
	}
	utils.Logger.Info("Stopped all components. CGRateS shutdown!")
}

//.........这里部分代码省略.........
		internalRaterChan <- responder // Put back the connection since there might be other entities waiting for it
	} else if len(cfg.CDRSRater) != 0 {
		client, err = rpcclient.NewRpcClient("tcp", cfg.CDRSRater, cfg.ConnectAttempts, cfg.Reconnects, utils.GOB)
		if err != nil {
			utils.Logger.Crit(fmt.Sprintf("<CDRS> Could not connect to rater: %s", err.Error()))
			exitChan <- true
			return
		}
		raterConn = &engine.RPCClientConnector{Client: client}
	}
	// Pubsub connection init
	var pubSubConn engine.PublisherSubscriber
	if cfg.CDRSPubSub == utils.INTERNAL {
		pubSubs := <-internalPubSubSChan
		pubSubConn = pubSubs
		internalPubSubSChan <- pubSubs
	} else if len(cfg.CDRSPubSub) != 0 {
		if cfg.CDRSRater == cfg.CDRSPubSub {
			pubSubConn = &engine.ProxyPubSub{Client: client}
		} else {
			client, err = rpcclient.NewRpcClient("tcp", cfg.CDRSPubSub, cfg.ConnectAttempts, cfg.Reconnects, utils.GOB)
			if err != nil {
				utils.Logger.Crit(fmt.Sprintf("<CDRS> Could not connect to pubsub server: %s", err.Error()))
				exitChan <- true
				return
			}
			pubSubConn = &engine.ProxyPubSub{Client: client}
		}
	}
	// Users connection init
	var usersConn engine.UserService
	if cfg.CDRSUsers == utils.INTERNAL {
		userS := <-internalUserSChan
		usersConn = userS
		internalUserSChan <- userS
	} else if len(cfg.CDRSUsers) != 0 {
		if cfg.CDRSRater == cfg.CDRSUsers {
			usersConn = &engine.ProxyUserService{Client: client}
		} else {
			client, err = rpcclient.NewRpcClient("tcp", cfg.CDRSUsers, cfg.ConnectAttempts, cfg.Reconnects, utils.GOB)
			if err != nil {
				utils.Logger.Crit(fmt.Sprintf("<CDRS> Could not connect to users server: %s", err.Error()))
				exitChan <- true
				return
			}
			usersConn = &engine.ProxyUserService{Client: client}
		}
	}
	// Aliases connection init
	var aliasesConn engine.AliasService
	if cfg.CDRSAliases == utils.INTERNAL {
		aliaseS := <-internalAliaseSChan
		aliasesConn = aliaseS
		internalAliaseSChan <- aliaseS
	} else if len(cfg.CDRSAliases) != 0 {
		if cfg.CDRSRater == cfg.CDRSAliases {
			aliasesConn = &engine.ProxyAliasService{Client: client}
		} else {
			client, err = rpcclient.NewRpcClient("tcp", cfg.CDRSAliases, cfg.ConnectAttempts, cfg.Reconnects, utils.GOB)
			if err != nil {
				utils.Logger.Crit(fmt.Sprintf("<CDRS> Could not connect to aliases server: %s", err.Error()))
				exitChan <- true
				return
			}
			aliasesConn = &engine.ProxyAliasService{Client: client}
		}
	}
	// Stats connection init
	var statsConn engine.StatsInterface
	if cfg.CDRSStats == utils.INTERNAL {
		statS := <-internalCdrStatSChan
		statsConn = statS
		internalCdrStatSChan <- statS
	} else if len(cfg.CDRSStats) != 0 {
		if cfg.CDRSRater == cfg.CDRSStats {
			statsConn = &engine.ProxyStats{Client: client}
		} else {
			client, err = rpcclient.NewRpcClient("tcp", cfg.CDRSStats, cfg.ConnectAttempts, cfg.Reconnects, utils.GOB)
			if err != nil {
				utils.Logger.Crit(fmt.Sprintf("<CDRS> Could not connect to stats server: %s", err.Error()))
				exitChan <- true
				return
			}
			statsConn = &engine.ProxyStats{Client: client}
		}
	}

	cdrServer, _ := engine.NewCdrServer(cfg, cdrDb, raterConn, pubSubConn, usersConn, aliasesConn, statsConn)
	utils.Logger.Info("Registering CDRS HTTP Handlers.")
	cdrServer.RegisterHanlersToServer(server)
	utils.Logger.Info("Registering CDRS RPC service.")
	cdrSrv := v1.CdrsV1{CdrSrv: cdrServer}
	server.RpcRegister(&cdrSrv)
	server.RpcRegister(&v2.CdrsV2{CdrsV1: cdrSrv})
	// Make the cdr server available for internal communication
	responder := <-internalRaterChan // Retrieve again the responder
	responder.CdrSrv = cdrServer     // Attach connection to cdrServer in responder, so it can be used later
	internalRaterChan <- responder   // Put back the connection for the rest of the system
	internalCdrSChan <- cdrServer    // Signal that cdrS is operational
}

func startCdrStats(internalCdrStatSChan chan engine.StatsInterface, ratingDb engine.RatingStorage, accountDb engine.AccountingStorage, server *engine.Server) {
	cdrStats := engine.NewStats(ratingDb, accountDb, cfg.CDRStatsSaveInterval)
	server.RpcRegister(cdrStats)
	server.RpcRegister(&v1.CDRStatsV1{CdrStats: cdrStats}) // Public APIs
	internalCdrStatSChan <- cdrStats
}

//.........这里部分代码省略.........
			} else if scribeServer, err = history.NewProxyScribe(cfg.RaterHistoryServer, cfg.ConnectAttempts, -1); err != nil {
				utils.Logger.Crit(fmt.Sprintf("<Rater> Could not connect historys, error: %s", err.Error()))
				exitChan <- true
				return
			}
			engine.SetHistoryScribe(scribeServer) // ToDo: replace package sharing with connection based one
		}()
	}

	// Connection to pubsubs
	if cfg.RaterPubSubServer != "" {
		pubsubTaskChan := make(chan struct{})
		waitTasks = append(waitTasks, pubsubTaskChan)
		go func() {
			defer close(pubsubTaskChan)
			var pubSubServer engine.PublisherSubscriber
			if cfg.RaterPubSubServer == utils.INTERNAL {
				select {
				case pubSubServer = <-internalPubSubSChan:
					internalPubSubSChan <- pubSubServer
				case <-time.After(cfg.InternalTtl):
					utils.Logger.Crit("<Rater>: Internal pubsub connection timeout.")
					exitChan <- true
					return
				}
			} else if pubSubServer, err = engine.NewProxyPubSub(cfg.RaterPubSubServer, cfg.ConnectAttempts, -1); err != nil {
				utils.Logger.Crit(fmt.Sprintf("<Rater> Could not connect to pubsubs: %s", err.Error()))
				exitChan <- true
				return
			}
			engine.SetPubSub(pubSubServer) // ToDo: replace package sharing with connection based one
		}()
	}

	// Connection to AliasService
	if cfg.RaterAliasesServer != "" {
		aliasesTaskChan := make(chan struct{})
		waitTasks = append(waitTasks, aliasesTaskChan)
		go func() {
			defer close(aliasesTaskChan)
			var aliasesServer engine.AliasService
			if cfg.RaterAliasesServer == utils.INTERNAL {
				select {
				case aliasesServer = <-internalAliaseSChan:
					internalAliaseSChan <- aliasesServer
				case <-time.After(cfg.InternalTtl):
					utils.Logger.Crit("<Rater>: Internal aliases connection timeout.")
					exitChan <- true
					return
				}
			} else if aliasesServer, err = engine.NewProxyAliasService(cfg.RaterAliasesServer, cfg.ConnectAttempts, -1); err != nil {
				utils.Logger.Crit(fmt.Sprintf("<Rater> Could not connect to aliases, error: %s", err.Error()))
				exitChan <- true
				return
			}
			engine.SetAliasService(aliasesServer) // ToDo: replace package sharing with connection based one
		}()
	}

	// Connection to UserService
	var userServer engine.UserService
	if cfg.RaterUserServer != "" {
		usersTaskChan := make(chan struct{})
		waitTasks = append(waitTasks, usersTaskChan)
		go func() {
			defer close(usersTaskChan)
			if cfg.RaterUserServer == utils.INTERNAL {
				select {
				case userServer = <-internalUserSChan:
					internalUserSChan <- userServer
				case <-time.After(cfg.InternalTtl):
					utils.Logger.Crit("<Rater>: Internal users connection timeout.")
					exitChan <- true
					return
				}
			} else if userServer, err = engine.NewProxyUserService(cfg.RaterUserServer, cfg.ConnectAttempts, -1); err != nil {
				utils.Logger.Crit(fmt.Sprintf("<Rater> Could not connect users, error: %s", err.Error()))
				exitChan <- true
				return
			}
			engine.SetUserService(userServer)
		}()
	}

	// Wait for all connections to complete before going further
	for _, chn := range waitTasks {
		<-chn
	}

	responder := &engine.Responder{Bal: bal, ExitChan: exitChan, Stats: cdrStats}
	apierRpcV1 := &v1.ApierV1{StorDb: loadDb, RatingDb: ratingDb, AccountDb: accountDb, CdrDb: cdrDb, LogDb: logDb, Sched: sched,
		Config: cfg, Responder: responder, CdrStatsSrv: cdrStats, Users: userServer}
	apierRpcV2 := &v2.ApierV2{
		ApierV1: *apierRpcV1}
	// internalSchedulerChan shared here
	server.RpcRegister(responder)
	server.RpcRegister(apierRpcV1)
	server.RpcRegister(apierRpcV2)
	internalRaterChan <- responder // Rater done
}