add random for fields and timestamp

tools/wsEventEmulator/.vscode/launch.json

@@ -9,7 +9,13 @@
             "type": "node",
             "request": "launch",
             "name": "Launch Program",
-            "program": "${workspaceFolder}/app.js"
+            "program": "${workspaceFolder}/app.js",
+            "args": [
+                "-p","8053",
+                "-f","/home/amir/git/ipgallery/transportation/doc/events.json",
+                "-d", "10"
+            ]
+            //                 "--postUrl", "http://172.16.1.33:50035/transportation/api/v1/traffic/san-diego/event"
         }
     ]
 }
\ No newline at end of file

tools/wsEventEmulator/app.js

@@ -7,7 +7,7 @@ const schedule = require('node-schedule');
 const request = require('request');
 
 var myArgs = require('optimist').argv,
-    help = './websocketExpress -p port -f file-path [-d delay-between-samples --postUrl http url to post instead of websocket]';
+    help = 'node app.js -p port -f file-path [-d delay-between-samples --postUrl http url to post instead of websocket]';
 
 /**
  * some validation
@@ -38,13 +38,65 @@ const server = http.createServer(app);
 const wss = new WebSocket.Server({ server });
 var index = 0;
 
+// Math.floor((Math.random() * 10)); 0 - 10
+function randomFloatBetween(minValue,maxValue,precision){
+    if(typeof(precision) == 'undefined'){
+        precision = 2;
+    }
+    return parseFloat(Math.min(minValue + (Math.random() * (maxValue - minValue)),maxValue).toFixed(precision));
+}
+
+function randomIntBetween(minValue,maxValue){
+    return parseInt(Math.min(minValue + (Math.random() * (maxValue - minValue)),maxValue));
+}
+
+function handleChild(child, parent) {
+    var obj = parent[child];
+    switch (typeof obj){
+        case 'object':
+            handleChildren(obj);
+            break;
+        case 'string':
+            var args = obj.split(":");
+            if (args.length == 4){
+                if (args[0] == 'R'){
+                    var startRange = args[2];
+                    var endRange = args[3];
+                    var type = args[1];
+                    switch (type){
+                        case 'I':
+                            parent[child] = randomIntBetween(startRange,endRange);
+                            break;
+                        case 'F':
+                            parent[child] = randomFloatBetween(startRange,endRange);
+                            break;
+                    }
+                }
+            }
+            break;
+        case 'number':
+            if (child == 'timestamp')
+                parent[child] = Date.now();
+            break;
+    }
+}
+function handleChildren(parent) {
+    for (var child in parent) {
+        handleChild(child, parent);
+    }
+}
+var normalyzeEvent = function(eventObj){
+    handleChildren(eventObj);
+}
+
 var sendJson = function(){
     wss.clients.forEach(function each(client) {
+        var eventObj = jsonFile[index];
+        normalyzeEvent(eventObj);
+        console.log("sending: " + JSON.stringify(eventObj));
         if (myArgs.postUrl == null){
             if (client.readyState === WebSocket.OPEN) {
-                var currentObj = jsonFile[index];
-                client.send(JSON.stringify(currentObj));
-                index = ++index % jsonFile.length;
+                client.send(JSON.stringify(eventObj));
             }
         } else {
             request.post({
@@ -52,7 +104,7 @@ var sendJson = function(){
                 headers: {
                    "Content-Type": "application/json"
                 },
-                body: jsonFile[index],
+                body: eventObj,
                 json:true
            }, function(error, response, body){
               console.log(error);
@@ -61,6 +113,7 @@ var sendJson = function(){
            });
         }
     });
+    index = ++index % jsonFile.length;
 }
 
 fs.readFile(myArgs.f, (err, data) => {