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375 lines
11 KiB
JavaScript
375 lines
11 KiB
JavaScript
// 2018 - ntop.org
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var schema_2_label = {};
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var data_2_label = {};
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function initLabelMaps(_schema_2_label, _data_2_label) {
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schema_2_label = _schema_2_label;
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data_2_label = _data_2_label;
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};
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function getSerieLabel(schema, serie) {
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var data_label = serie.label;
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var new_label = data_2_label[data_label];
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if((schema == "top:local_senders") || (schema == "top:local_receivers")) {
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return serie.tags.host
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} else if(schema.startsWith("top:")) { // topk graphs
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if(serie.tags.protocol)
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return serie.tags.protocol;
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else if(serie.tags.category)
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return serie.tags.category
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else if(serie.tags.device && serie.tags.if_index) { // SNMP interface
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if(serie.tags.if_index != serie.ext_label)
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return serie.ext_label + " (" + serie.tags.if_index + ")";
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else
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return serie.ext_label;
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} else if(serie.tags.device && serie.tags.port) // Flow device
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return serie.tags.port;
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else if(serie.tags.profile)
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return serie.tags.profile;
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} else if(data_label != "bytes") { // single series
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if(serie.tags.protocol)
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return serie.tags.protocol + " (" + new_label + ")";
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else if(serie.tags.category)
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return serie.tags.category + " (" + new_label + ")";
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else if(serie.tags.device && serie.tags.if_index) // SNMP interface
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return serie.ext_label + " (" + new_label + ")";
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else if(serie.tags.device && serie.tags.port) // Flow device
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return serie.tags.port + " (" + new_label + ")";
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} else {
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if(serie.tags.protocol)
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return serie.tags.protocol;
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else if(serie.tags.category)
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return serie.tags.category;
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else if(serie.tags.profile)
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return serie.tags.profile;
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}
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if(schema_2_label[schema])
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return capitaliseFirstLetter(schema_2_label[schema]);
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if(new_label)
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return capitaliseFirstLetter(new_label);
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// default
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return capitaliseFirstLetter(data_label);
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}
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// Value formatter
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function getValueFormatter(schema, series) {
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if(series && series.length && series[0].label) {
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var label = series[0].label;
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if(label.contains("bytes"))
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return [fbits_from_bytes, bytesToSize];
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else if(label.contains("packets"))
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return [fpackets, formatPackets];
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else if(label.contains("flows"))
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return [formatFlows, formatFlows];
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else if(label.contains("millis"))
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return [fmillis, fmillis];
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}
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// fallback
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return [fint,fint];
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}
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function makeFlatLineValues(tstart, tstep, num, data) {
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var t = tstart;
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var values = [];
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for(var i=0; i<num; i++) {
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values[i] = [t, data ];
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t += tstep;
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}
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return values;
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}
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function checkSeriesConsinstency(schema_name, count, series) {
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var rv = true;
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for(var i=0; i<series.length; i++) {
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var data = series[i].data;
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if(data.length != count) {
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console.error("points mismatch: serie '" + getSerieLabel(schema_name, series[i]) +
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"' has " + data.length + " points, expected " + count);
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rv = false;
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}
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}
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return rv;
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}
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function interpolateSerie(serie, num_points) {
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if(num_points == serie.length)
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return serie;
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var res = [];
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var intervals = num_points / serie.length;
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function lerp(v0, v1, t) {
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return (1 - t) * v0 + t * v1;
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}
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for(var i=0; i<num_points; i++) {
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var index = i / intervals;
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var prev_i = Math.floor(index);
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var next_i = Math.min(Math.ceil(index), serie.length-1);
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var t = index % 1; // fractional part
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var v = lerp(serie[prev_i], serie[next_i], t);
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//console.log(prev_i, next_i, t, ">>", v);
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res.push(v);
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}
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return res.slice(0, num_points);
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}
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// the stacked total serie
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function buildTotalSerie(data_series) {
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var series = [];
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for(var i=0; i<data_series.length; i++)
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series.push(data_series[i].data);
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return d3.transpose(series).map(function(x) {
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return x.map(function(g) {
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return g;
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});
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}).map(function(x) {return d3.sum(x);});
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}
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function arrayToNvSerie(serie_data, start, step) {
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var values = [];
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var t = start;
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for(var i=0; i<serie_data.length; i++) {
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values[i] = [t, serie_data[i]];
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t += step;
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}
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return values;
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}
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// computes the difference between visual_total and total_serie
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function buildOtherSerie(total_serie, visual_total) {
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if(total_serie.length !== visual_total.length) {
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console.warn("Total/Visual length mismatch: " + total_serie.length + " vs " + visual_total.length);
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return;
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}
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var res = [];
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var max_val = 0;
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for(var i=0; i<total_serie.length; i++) {
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var value = Math.max(0, total_serie[i] - visual_total[i]);
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max_val = Math.max(max_val, value);
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res.push(value);
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}
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if(max_val > 0.1)
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return res;
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}
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// add a new updateStackedChart function
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function attachStackedChartCallback(chart, schema_name, url, chart_id, params) {
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var pending_request = null;
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var d3_sel = d3.select(chart_id);
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var $chart = $(chart_id);
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//var spinner = $("<img class='chart-loading-spinner' src='" + spinner_url + "'/>");
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var spinner = $('<i class="chart-loading-spinner fa fa-spinner fa-lg fa-spin"></i>');
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$chart.parent().css("position", "relative");
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var chart_colors = [
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"#69B87F",
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"#94CFA4",
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"#B3DEB6",
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"#E5F1A6",
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"#FFFCC6",
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"#FEDEA5",
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"#FFB97B",
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"#FF8D6D",
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"#E27B85"
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];
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var update_chart_data = function(new_data) {
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/* reset chart data so that the next transition animation will be gracefull */
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d3_sel.datum([]).call(chart);
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d3_sel.datum(new_data).transition().call(chart);
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nv.utils.windowResize(chart.update);
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pending_request = null;
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spinner.remove();
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}
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chart.updateStackedChart = function (tstart, tend, no_spinner) {
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if(pending_request)
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pending_request.abort();
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else if(!no_spinner)
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spinner.appendTo($chart.parent());
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if(tstart) params.epoch_begin = tstart;
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if(tend) params.epoch_end = tend;
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// Load data via ajax
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pending_request = $.get(url, params, function(data) {
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if(!data || !data.series || !checkSeriesConsinstency(schema_name, data.count, data.series)) {
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update_chart_data([]);
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return;
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}
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// Adapt data
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var res = [];
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var series = data.series;
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var total_serie;
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var color_i = 0;
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for(var j=0; j<series.length; j++) {
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var values = [];
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var serie_data = series[j].data;
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var t = data.start;
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for(var i=0; i<serie_data.length; i++) {
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values[i] = [t, serie_data[i] ];
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t += data.step;
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}
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res.push({
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key: getSerieLabel(schema_name, series[j]),
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yAxis: 1,
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values: values,
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type: "area",
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color: chart_colors[color_i++],
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});
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}
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var visual_total = buildTotalSerie(series);
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if(data.additional_series && data.additional_series.total) {
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total_serie = data.additional_series.total;
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/* Total -> Other */
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var other_serie = buildOtherSerie(total_serie, visual_total);
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if(other_serie) {
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res.push({
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key: "Other", // TODO localize
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yAxis: 1,
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values: arrayToNvSerie(other_serie, data.start, data.step),
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type: "area",
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color: chart_colors[color_i++],
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});
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}
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} else
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total_serie = visual_total;
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if(data.additional_series) {
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for(var key in data.additional_series) {
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if(key == "total") {
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// handle manually as "other" above
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continue;
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}
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var serie_data = interpolateSerie(data.additional_series[key], data.count);
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var values = arrayToNvSerie(serie_data, data.start, data.step);
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res.push({
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key: capitaliseFirstLetter(key),
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yAxis: 1,
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values: values,
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type: "line",
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classed: "line-dashed line-animated",
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color: "#7E91A0",
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});
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}
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}
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// Smoothed serie
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var num_smoothed_points = Math.max(Math.floor(total_serie.length / 5), 3);
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var smoothed = smooth(total_serie, num_smoothed_points);
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var scale = d3.max(total_serie) / d3.max(smoothed);
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var scaled = $.map(smoothed, function(x) { return x * scale; });
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var aligned = interpolateSerie(scaled, data.count);
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res.push({
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key: "Trend", // TODO localize
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yAxis: 1,
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values: arrayToNvSerie(aligned, data.start, data.step),
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type: "line",
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classed: "line-animated",
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color: "#62ADF6",
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});
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// get the value formatter
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var formatter = getValueFormatter(schema_name, series);
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var value_formatter = formatter[0];
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var tot_formatter = formatter[1];
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chart.yAxis1.tickFormat(value_formatter);
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chart.interactiveLayer.tooltip.valueFormatter(value_formatter);
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var stats_table = $chart.closest("table").find(".graph-statistics");
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var stats = data.statistics;
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if(stats) {
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if(stats.average) {
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var values = makeFlatLineValues(data.start, data.step, data.count, stats.average);
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res.push({
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key: "Avg", // TODO localize
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yAxis: 1,
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values: values,
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type: "line",
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classed: "line-dashed line-animated",
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color: "#AC9DDF",
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disabled: true,
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});
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}
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// fill the stats
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if(stats.total)
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stats_table.find(".graph-val-total").show().find("span").html(tot_formatter(stats.total));
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if(stats.average)
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stats_table.find(".graph-val-average").show().find("span").html(value_formatter(stats.average));
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if(stats.min_val)
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stats_table.find(".graph-val-min").show().find("span").html(value_formatter(stats.min_val) + "@" + (new Date(res[0].values[stats.min_val_idx][0] * 1000)).format("dd/MM/yyyy hh:mm:ss"));
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if(stats.max_val)
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stats_table.find(".graph-val-max").show().find("span").html(value_formatter(stats.max_val) + "@" + (new Date(res[0].values[stats.max_val_idx][0] * 1000)).format("dd/MM/yyyy hh:mm:ss"));
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if(stats["95th_percentile"]) {
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stats_table.find(".graph-val-95percentile").show().find("span").html(value_formatter(stats["95th_percentile"]));
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var values = makeFlatLineValues(data.start, data.step, data.count, stats["95th_percentile"]);
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res.push({
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key: "95th Perc", // TODO localize
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yAxis: 1,
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values: values,
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type: "line",
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classed: "line-dashed line-animated",
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color: "#476DFF",
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disabled: true,
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});
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}
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// only show if there are visible elements
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if(stats_table.find("td").filter(function(){ return $(this).css("display") != "none"; }).length > 0)
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stats_table.show();
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else
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stats_table.hide();
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} else {
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stats_table.hide();
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}
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update_chart_data(res);
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}).fail(function(xhr, status, error) {
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console.error("Error while retrieving the timeseries data [" + status + "]: " + error);
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update_chart_data([]);
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});
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}
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}
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