upgrade flowagent to suppport multiple platform

coordinator.js

@@ -11,60 +11,19 @@ const Coordinator = function(param={}) {
 	let that = this;
 	let resettimer = 0;
 
+	this.started = false;
+
 	this.events = new events.EventEmitter;
 	this.remoteclient = param.remoteclient;
 	this.flowemitter = param.flowemitter   || null;
 
-	// function resetSubscription() {
-
-	// }
-
-	// function checkupSubscription() {
-	// 	let nodeList = that.flowemitter.getDeviceList();
-	// 	let sublist = {};
-	// 	let topic = '';
-
-	// 	function safeSub(topic) {
-	// 		if (topic && !sublist[topic]) {
-	// 			that.remoteclient.subscribe(topic);
-	// 			sublist[topic] = true;
-	// 		}
-	// 	}
-
-	// 	for (let nodeid in nodeList) {
-	// 		if (!nodeList[nodeid].subbbed) {
-
-	// 			safeSub(`@tap/shadow/updated/${deviceid}:${devicetoken}`);
-	// 			safeSub(`@tap/device/changed/${deviceid}:${devicetoken}`);
-
-	// 			let tp;
-	// 			for (let i=0; i<nodeList[nodeid].msgtopic.length; i++) {
-	// 				safeSub(nodeList[nodeid].msgtopic[i]);
-	// 			}
-	// 			nodeList[nodeid].subbbed = true;
-	// 		}
-	// 	}
-	// }
-
-
 	this.flowemitter.on('newclient', function(client){
 		let deviceid = client.deviceid;
 		let devicetoken = client.devicetoken;
 
-		//let nodeList = that.flowemitter.getDeviceList();
-		// if (nodeList[client.nodeid] && !nodeList[client.nodeid].subbed ) {
-		// 	nodeList[client.nodeid].subbed = true;
-		// let deviceid = nodeList[client.nodeid].deviceid;
-		// let devicetoken = nodeList[client.nodeid].devicetoken;
-
 		that.remoteclient.subscribe(`@tap/shadow/updated/${deviceid}:${devicetoken}`);
 		that.remoteclient.subscribe(`@tap/device/changed/${deviceid}:${devicetoken}`);
 
-		// that.remoteclient.publish(`@tap/device/get/${deviceid}:${devicetoken}`);
-		// that.remoteclient.publish(`@tap/shadow/get/${deviceid}:${devicetoken}`);			
-
-		//}
-
 		if (DEBUG_SUBLIST) {
 			console.log(`\nshadow client #${deviceid} connected -->`)
 			console.log(that.flowemitter.sublist);
@@ -128,19 +87,10 @@ const Coordinator = function(param={}) {
 	this.remoteclient.on('connect', function() {
 		console.log('                  [info] Connected to MQTT broker.')
 		that.remoteclient.subscribe('@private/#');
-		
-		// setTimeout(function() {
-		// 	for (let deviceid in that.flowemitter.sublist) {
-		// 		that.remoteclient.subscribe(`@tap/shadow/updated/${deviceid}:${that.flowemitter.sublist[deviceid].token}`);
-		// 		that.remoteclient.subscribe(`@tap/device/changed/${deviceid}:${that.flowemitter.sublist[deviceid].token}`);
-
-		// 		that.remoteclient.publish(`@tap/device/get/${deviceid}:${that.flowemitter.sublist[deviceid].token}`);
-		// 		that.remoteclient.publish(`@tap/shadow/get/${deviceid}:${that.flowemitter.sublist[deviceid].token}`);
-		// 	}
-		// }, 1000);
 	});
 
 	this.remoteclient.on('close', function() {
+		this.started = false;
 		console.log('                  [info] Disconnect from MQTT broker.')
 	});
 
@@ -185,7 +135,6 @@ const Coordinator = function(param={}) {
     		});
         }
 	});
-
 }
 
 Coordinator.prototype.on = function(eventname, handler) {
@@ -197,8 +146,16 @@ Coordinator.prototype.emit = function(eventname, data1, data2, data3) {
 }
 
 Coordinator.prototype.start = function() {
-	this.remoteclient.connect();
-	this.flowemitter.start();
+	if (!this.started) {
+		this.started = true;
+		this.remoteclient.connect();
+		this.flowemitter.start();
+		return true;
+	}
+	else {
+		return false;
+	}
+
 }
 
 function create(param) {

flowagent.js

@@ -17,24 +17,31 @@ let FlowAgent = function(option = {}) {
     	broker_uri : option.broker_uri,
     	flowagentid : option.flowagentid,
     	flowagentsecret : option.flowagentsecret,
-    	red : option.red || null
+    	red : option.red || null,
+    	namespace : option.namespace
     }
 
     if (this.option.red) {
     	this.option.red.events.setMaxListeners(100);
     }
 
+    let opt = {
+        clientId: Date.now()+'-'+that.option.flowagentid,
+        username: that.option.flowagentid,
+        password: that.option.flowagentsecret,
+        keepalive: 30
+    }
+
 	this.remoteclient = MQTTClient.create({
 	    host: that.option.broker_uri,
-	    options: {
-	        clientId: Date.now()+'-'+that.option.flowagentid,
-	        username: that.option.flowagentid,
-	        password: that.option.flowagentsecret,
-	        keepalive: 30
-	    }
+	    options: opt
 	});
 
-	this.flowemitter = FlowEmitter.create({red: this.option.red});
+	this.flowemitter = FlowEmitter.create({
+		red: this.option.red,
+		namespace: this.option.namespace
+	});
+	
 	this.coordinator = Coordinatior.create({
 		remoteclient: that.remoteclient,
 		flowemitter: that.flowemitter
@@ -50,8 +57,9 @@ FlowAgent.prototype.emit = function(eventname, data1, data2, data3) {
 }
 
 FlowAgent.prototype.start = function() {
-	console.log('FlowAgent started...')
-    this.coordinator.start();
+    if (this.coordinator.start()) {
+    	console.log('Staring FlowAgent...')
+    }
 }
 
 FlowAgent.prototype.getInfo = function() {
@@ -62,7 +70,6 @@ FlowAgent.prototype.getInfo = function() {
 	}
 }
 
-
 function create(option) {
 	return new FlowAgent(option);
 }

flowemitter.js

@@ -6,38 +6,38 @@ const FlowEmitter = function(param = {}) {
 	this.red = param.red;		// node-red object
 	this.globalcontext = param.globalcontext;
 	this.events = new events.EventEmitter;	
+	this.namespace = param.namespace;    // namespace is for communicating with RED.events 
 }
 
 FlowEmitter.prototype.start = function() {
     let that = this;
 
-    this.red.events.on('register', function(client) {
+    this.red.events.on(`${that.namespace}-register`, function(client) {
     	that.emit('newclient', client);
     });
 
-    this.red.events.on('deregister', function(client) {
-    	//delete that.devicelist[client.nodeid];
+    this.red.events.on(`${that.namespace}-deregister`, function(client) {
     	that.emit('startcountdownreset');
 	});
 
-    this.red.events.on('flowsub', function(topic, client) {
+    this.red.events.on(`${that.namespace}-flowsub`, function(topic, client) {
 		//that.devicelist[client.nodeid].msgtopic.push(topic);
     	that.emit('flowsub', topic, client);
     });
 
-    this.red.events.on('flowpub', function(topic, payload, client) {
+    this.red.events.on(`${that.namespace}-flowpub`, function(topic, payload, client) {
     	that.emit('flowpub', topic, payload, client);
     });
-
 }
 
 FlowEmitter.prototype.pub = function(topic, payload) {
-	this.red.events.emit(topic, payload);
+	let that = this;
+	this.red.events.emit(`${that.namespace}-${topic}`, payload);
 }
 
-FlowEmitter.prototype.sub = function(topic) {
-    let that = this;
-
+FlowEmitter.prototype.redemit = function(eventname, data1, data2, data3) {
+	let that = this;
+	this.red.events.emit(`${that.namespace}-${eventname}`, data1, data2, data3);
 }
 
 FlowEmitter.prototype.on = function(eventname, handler) {
@@ -48,10 +48,6 @@ FlowEmitter.prototype.emit = function(eventname, data1, data2, data3) {
 	this.events.emit(eventname, data1, data2, data3);
 }
 
-FlowEmitter.prototype.redemit = function(eventname, data1, data2, data3) {
-	this.red.events.emit(eventname, data1, data2, data3);
-}
-
 function create(param) {
 	return new FlowEmitter(param);
 }

mqttclient.js

@@ -21,10 +21,10 @@ MQTTClient.prototype.connect = function() {
 
     this.client = MQTT.connect(this.host, this.options || {});
 
-    this.client.on('connect', async function() {
-        for (let topic in that.subscription) {
-            await sleep(100);
-        }
+    this.client.on('connect', function() {
+        // for (let topic in that.subscription) {
+        //     await sleep(100);
+        // }
         that.emit('connect');
     });
 
@@ -49,39 +49,30 @@ MQTTClient.prototype.connect = function() {
 
 MQTTClient.prototype.resetbroker = function(topic, payload) {
     this.client.end();
-    //this.subscription = {};
     this.client.reconnect();
 }
 
 MQTTClient.prototype.publish = function(topic, payload) {
-	if (this.client) {
-        //console.log('              mqtt pub -->   '+topic);
-        
-        if (this.subscription[topic]) this.subscription[topic]++;
-        else this.subscription[topic] = 1;
-	    
+	if (this.client && this.client.connected) {
         this.client.publish(topic, payload);
 	}
 	else {
-
 	}
 }
 
 MQTTClient.prototype.subscribe = function(topic) {
-	if (this.client) {
+    if (this.client && this.client.connected) {
 	    this.client.subscribe(topic);
 	}
 	else {
-
 	}
 }
 
 MQTTClient.prototype.unsubscribe = function(topic) {
-	if (this.client) {
+    if (this.client && this.client.connected) {
 	    this.client.unsubscribe(topic);
 	}
 	else {
-
 	}
 }
 

package-lock.json

 {
   "name": "flowagent",
-  "version": "1.0.0",
+  "version": "1.1.1",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {