src/emuvim/dashboard/js/main.js

   1 var API_HOST = "http://127.0.0.1:5001";
   2 var ERROR_ALERT = false;
   3 var TIMESTAMP = 0;
   4 var CONNECTED = false;
   5 var LATENESS_UPDATE_INTERVAL = 50;
   6 var DATA_UPDATE_INTERVAL = 1000 * 10;
   7 var LAST_UPDATE_TIMESTAMP_CONTAINER = 0;
   8 var LAST_UPDATE_TIMESTAMP_DATACENTER = 0;
   9
  10
  11 function update_lateness_loop() {
  12     lateness_datacenter= (Date.now() - LAST_UPDATE_TIMESTAMP_DATACENTER) / 1000;
  13     $("#lbl_lateness_datacenter").text("Lateness: " + Number(lateness_datacenter).toPrecision(3) + "s");
  14     lateness_container= (Date.now() - LAST_UPDATE_TIMESTAMP_CONTAINER) / 1000;
  15     $("#lbl_lateness_container").text("Lateness: " + Number(lateness_container).toPrecision(3) + "s");
  16     // loop while connected
  17     if(CONNECTED)
  18         setTimeout(update_lateness_loop, LATENESS_UPDATE_INTERVAL)
  19 }
  20
  21
  22 function errorAjaxConnection()
  23 {
  24     // only do once
  25     if(!ERROR_ALERT)
  26     {
  27         ERROR_ALERT = true;
  28         // show message
  29         alert("ERROR!\nAPI request failed.\n\n Please check the backend connection.", function() {
  30             // callback
  31             ERROR_ALERT = false;
  32         });
  33     }
  34 }
  35
  36
  37 function update_table_datacenter(data)
  38 {
  39     console.debug(data)
  40     // clear table
  41     $("#table_datacenter").empty();
  42     // header
  43     $("#table_datacenter").append('<tr class="tbl-head"><td>Label</td><td>Int. Name</td><td>Switch</td><td>Num. Containers</td><td>VNFs</td></tr>');
  44     // fill table
  45     $.each(data, function(i, item) {
  46         var row_str = "";
  47         row_str += '<tr class="tbl-row clickable_row" id="datacenter_row_' + i +'">';
  48         row_str += '<td>' + item.label + '1</td>';
  49         row_str += '<td>' + item.internalname + '</td>';
  50         row_str += '<td>' + item.switch + '</td>';
  51         row_str += '<td><span class="badge">' + item.n_running_containers + '</span></td>';
  52         //row_str += '<td><span class="badge">' + Object.keys(item.metadata).length + '</span></td>';
  53         row_str += '<td>' + item.vnf_list + '</span></td>';
  54         row_str += '<tr>';
  55         $("#table_datacenter").append(row_str);
  56     });
  57     $("#lbl_datacenter_count").text(data.length);
  58     // update lateness counter
  59     LAST_UPDATE_TIMESTAMP_DATACENTER = Date.now();
  60 }
  61
  62
  63 function update_table_container(data)
  64 {
  65     console.debug(data)
  66     // clear table
  67     $("#table_container").empty();
  68     // header
  69     $("#table_container").append('<tr class="tbl-head"><td>Datacenter</td><td>Container</td><td>Image</td><td>docker0</td><td>Status</td></tr>');
  70     // fill table
  71     $.each(data, function(i, item) {
  72         var row_str = "";
  73         row_str += '<tr class="tbl-row clickable_row" id="container_row_' + i +'">';
  74         row_str += '<td>' + item[1].datacenter + '</td>';
  75         row_str += '<td>' + item[0] + '</td>';
  76         row_str += '<td>' + item[1].image + '</td>';
  77         row_str += '<td><code>' + item[1].docker_network + '<code></td>';
  78         if(item[1].state.Status == "running")
  79             row_str += '<td><span class="label label-success">running</span></td>';
  80         else
  81             row_str += '<td><span class="label label-danger">stopped</span></td>';
  82         row_str += '<tr>';
  83         $("#table_container").append(row_str);
  84     });
  85     $("#lbl_container_count").text(data.length);
  86     // update lateness counter
  87     LAST_UPDATE_TIMESTAMP_CONTAINER = Date.now();
  88 }
  89
  90
  91 function fetch_datacenter()
  92 {
  93     // do HTTP request and trigger gui update on success
  94     var request_url = API_HOST + "/restapi/datacenter";
  95     console.debug("fetching from: " + request_url);
  96     $.getJSON(request_url,  update_table_datacenter);
  97 }
  98
  99
 100 function fetch_container()
 101 {
 102     // do HTTP request and trigger gui update on success
 103     var request_url = API_HOST + "/restapi/compute";
 104     console.debug("fetching from: " + request_url);
 105     $.getJSON(request_url,  update_table_container);
 106 }
 107
 108
 109 function fetch_d3graph()
 110 {
 111     // do HTTP request and trigger gui update on success
 112     var request_url = API_HOST + "/restapi/network/d3jsgraph";
 113     console.debug("fetching from: " + request_url);
 114     //$.getJSON(request_url,  update_graph);
 115 }
 116
 117 function fetch_loop()
 118 {
 119     // only fetch if we are connected
 120     if(!CONNECTED)
 121         return;
 122
 123     // download data
 124     fetch_datacenter();
 125     fetch_container();
 126
 127     // loop while connected
 128     if(CONNECTED)
 129         setTimeout(fetch_loop, DATA_UPDATE_INTERVAL);
 130 }
 131
 132
 133 function connect()
 134 {
 135     console.info("connect()");
 136     // get host address
 137     API_HOST = "http://" + $("#text_api_host").val();
 138     console.debug("API address: " + API_HOST);
 139     // reset data
 140     LAST_UPDATE_TIMESTAMP_DATACENTER = Date.now();
 141     LAST_UPDATE_TIMESTAMP_CONTAINER = Date.now();
 142     CONNECTED = true;
 143     // restart lateness counter
 144     update_lateness_loop();
 145     // restart data fetch loop
 146     fetch_loop();
 147     // gui updates
 148     $("#btn_disconnect").removeClass("disabled");
 149     $("#btn_connect").addClass("disabled");
 150 }
 151
 152 function disconnect()
 153 {
 154     console.info("disconnect()");
 155     CONNECTED = false;
 156      // gui updates
 157     $("#btn_connect").removeClass("disabled");
 158     $("#btn_disconnect").addClass("disabled");
 159 }
 160
 161
 162 $(document).ready(function(){
 163     console.info("document ready");
 164     // setup global connection error handling
 165     /*
 166     $.ajaxSetup({
 167         "error": errorAjaxConnection
 168     });
 169
 170     // add listeners
 171     $("#btn_connect").click(connect);
 172     $("#btn_disconnect").click(disconnect);
 173     */
 174     setTimeout(fetch_datacenter, 1000);//fetch_datacenter();
 175     setTimeout(fetch_container, 2000);//fetch_container();
 176
 177
 178     // additional refresh on window focus
 179     $(window).focus(function () {
 180         if(CONNECTED)
 181         {
 182             fetch_datacenter();
 183             fetch_container();
 184         }
 185     });
 186
 187 });