adjust to docker

tools/wsEventEmulator/app.js

@@ -9,7 +9,23 @@ const request = require('request');
 var myArgs = require('optimist').argv,
     help = 'node app.js -p port -f file-path [-d delay-between-samples --postUrl http url to post instead of websocket]';
 
+var config = {};
 //const twoDaysAgoMs = 1000 * 3600 * 47;
+/**
+ * getting configuration either from command args or from env
+ */
+var getConfiguration = function(){
+    myArgs.f ? 
+        config.file = myArgs.f : config.file = process.env.file;
+    myArgs.p ? 
+        config.port = myArgs.p : config.port = 8053; // default port
+    myArgs.d ? 
+        config.delay = myArgs.d : config.delay = process.env.delay;
+    myArgs.postUrl ? 
+        config.postUrl = myArgs.postUrl : config.postUrl = process.env.postUrl;
+        
+    console.log("Configuration is: " + JSON.stringify(config));
+};
 
 /**
  * some validation
@@ -18,18 +34,19 @@ if ((myArgs.h)||(myArgs.help)) {
     console.log(help);
     process.exit(0);
 }
-if (myArgs.f == null){
+
+getConfiguration();
+
+if (config.file == null){
     console.log('please insert file path');
     process.exit(0);
 }
-if (myArgs.d >0){
+if (config.delay && config.delay > 0){
     rule = new schedule.RecurrenceRule();
-    rule.second = myArgs.d;
+    rule.second = config.delay;
     rule.minute = 0;
 }
 
-console.log('myArgs: ', myArgs);
-
 const app = express();
 
 app.use(function (req, res) {
@@ -104,13 +121,13 @@ var sendJson = function(){
         var newEventObj = JSON.parse(JSON.stringify(eventObj))
         normalyzeEvent(newEventObj);
         console.log("sending: " + JSON.stringify(newEventObj));
-        if (myArgs.postUrl == null){
+        if (config.postUrl == null){
             if (client.readyState === WebSocket.OPEN) {
                 client.send(JSON.stringify(newEventObj));
             }
         } else {
             request.post({
-                url: myArgs.postUrl,
+                url: config.postUrl,
                 headers: {
                    "Content-Type": "application/json"
                 },
@@ -126,10 +143,10 @@ var sendJson = function(){
     index = ++index % jsonFile.length;
 }
 
-fs.readFile(myArgs.f, (err, data) => {  
+fs.readFile(config.file, (err, data) => {  
     if (err) throw err;
     jsonFile = JSON.parse(data);
-    console.log('finished reading: ' + myArgs.f);
+    console.log('finished reading: ' + config.file);
 });
 
 wss.on('connection', function connection(ws, req) {
@@ -139,8 +156,8 @@ wss.on('connection', function connection(ws, req) {
 
   ws.on('message', function incoming(message) {
     console.log('received: %s', message);
-    if (myArgs.d > 0){
-        var j = schedule.scheduleJob('*/' + myArgs.d + ' * * * * * *', sendJson);
+    if (config.delay > 0){
+        var j = schedule.scheduleJob('*/' + config.delay + ' * * * * * *', sendJson);
     } else {
         client.send(JSON.stringify(jsonFile));
     }
@@ -149,7 +166,7 @@ wss.on('connection', function connection(ws, req) {
 
 });
 
-server.listen(myArgs.p, function listening() {
+server.listen(config.port, function listening() {
   console.log('Listening on %d', server.address().port);
 });