-var API_HOST = "http://127.0.0.1:5001";
-var ERROR_ALERT = false;
-var TIMESTAMP = 0;
-var CONNECTED = false;
-var LATENESS_UPDATE_INTERVAL = 50;
-var DATA_UPDATE_INTERVAL = 1000 * 10;
-var LAST_UPDATE_TIMESTAMP_CONTAINER = 0;
-var LAST_UPDATE_TIMESTAMP_DATACENTER = 0;
-
-
-function update_lateness_loop() {
- lateness_datacenter= (Date.now() - LAST_UPDATE_TIMESTAMP_DATACENTER) / 1000;
- $("#lbl_lateness_datacenter").text("Lateness: " + Number(lateness_datacenter).toPrecision(3) + "s");
- lateness_container= (Date.now() - LAST_UPDATE_TIMESTAMP_CONTAINER) / 1000;
- $("#lbl_lateness_container").text("Lateness: " + Number(lateness_container).toPrecision(3) + "s");
- // loop while connected
- if(CONNECTED)
- setTimeout(update_lateness_loop, LATENESS_UPDATE_INTERVAL)
-}
-
-
-function errorAjaxConnection()
-{
- // only do once
- if(!ERROR_ALERT)
- {
- ERROR_ALERT = true;
- // show message
- alert("ERROR!\nAPI request failed.\n\n Please check the backend connection.", function() {
- // callback
- ERROR_ALERT = false;
- });
- }
-}
-
-
-function update_table_datacenter(data)
-{
- console.debug(data)
- // clear table
- $("#table_datacenter").empty();
- // header
- $("#table_datacenter").append('<tr class="tbl-head"><td>Label</td><td>Int. Name</td><td>Switch</td><td>Num. Containers</td><td>Metadata Items</td></tr>');
- // fill table
- $.each(data, function(i, item) {
- var row_str = "";
- row_str += '<tr class="tbl-row clickable_row" id="datacenter_row_' + i +'">';
- row_str += '<td>' + item.label + '1</td>';
- row_str += '<td>' + item.internalname + '</td>';
- row_str += '<td>' + item.switch + '</td>';
- row_str += '<td><span class="badge">' + item.n_running_containers + '</span></td>';
- row_str += '<td><span class="badge">' + Object.keys(item.metadata).length + '</span></td>';
- row_str += '<tr>';
- $("#table_datacenter").append(row_str);
- });
- $("#lbl_datacenter_count").text(data.length);
- // update lateness counter
- LAST_UPDATE_TIMESTAMP_DATACENTER = Date.now();
-}
-
-
-function update_table_container(data)
-{
- console.debug(data)
- // clear table
- $("#table_container").empty();
- // header
- $("#table_container").append('<tr class="tbl-head"><td>Datacenter</td><td>Container</td><td>Image</td><td>docker0</td><td>Status</td></tr>');
- // fill table
- $.each(data, function(i, item) {
- var row_str = "";
- row_str += '<tr class="tbl-row clickable_row" id="container_row_' + i +'">';
- row_str += '<td>' + item[1].datacenter + '</td>';
- row_str += '<td>' + item[0] + '</td>';
- row_str += '<td>' + item[1].image + '</td>';
- row_str += '<td><code>' + item[1].docker_network + '<code></td>';
- if(item[1].state.Status == "running")
- row_str += '<td><span class="label label-success">running</span></td>';
- else
- row_str += '<td><span class="label label-danger">stopped</span></td>';
- row_str += '<tr>';
- $("#table_container").append(row_str);
- });
- $("#lbl_container_count").text(data.length);
- // update lateness counter
- LAST_UPDATE_TIMESTAMP_CONTAINER = Date.now();
-}
-
-
-function fetch_datacenter()
-{
- // do HTTP request and trigger gui update on success
- var request_url = API_HOST + "/restapi/datacenter";
- console.debug("fetching from: " + request_url);
- $.getJSON(request_url, update_table_datacenter);
-}
-
-
-function fetch_container()
-{
- // do HTTP request and trigger gui update on success
- var request_url = API_HOST + "/restapi/compute";
- console.debug("fetching from: " + request_url);
- $.getJSON(request_url, update_table_container);
-}
-
-
-function fetch_loop()
-{
- // only fetch if we are connected
- if(!CONNECTED)
- return;
-
- // download data
- fetch_datacenter();
- fetch_container();
-
- // loop while connected
- if(CONNECTED)
- setTimeout(fetch_loop, DATA_UPDATE_INTERVAL);
-}
-
-
-function connect()
-{
- console.info("connect()");
- // get host address
- API_HOST = "http://" + $("#text_api_host").val();
- console.debug("API address: " + API_HOST);
- // reset data
- LAST_UPDATE_TIMESTAMP_DATACENTER = Date.now();
- LAST_UPDATE_TIMESTAMP_CONTAINER = Date.now();
- CONNECTED = true;
- // restart lateness counter
- update_lateness_loop();
- // restart data fetch loop
- fetch_loop();
- // gui updates
- $("#btn_disconnect").removeClass("disabled");
- $("#btn_connect").addClass("disabled");
-}
-
-function disconnect()
-{
- console.info("disconnect()");
- CONNECTED = false;
- // gui updates
- $("#btn_connect").removeClass("disabled");
- $("#btn_disconnect").addClass("disabled");
-}
-
-
-$(document).ready(function(){
- console.info("document ready");
- // setup global connection error handling
- $.ajaxSetup({
- "error": errorAjaxConnection
- });
-
- // add listeners
- $("#btn_connect").click(connect);
- $("#btn_disconnect").click(disconnect);
-
- // additional refresh on window focus
- $(window).focus(function () {
- if(CONNECTED)
- {
- fetch_datacenter();
- fetch_container();
- }
- });
-
-});