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<%#
Copyright 2010 Jo-Philipp Wich <jow@openwrt.org>
Licensed to the public under the Apache License 2.0.
-%>
<%+header%>
<script type="text/javascript">//<![CDATA[
var bwxhr = new XHR();
var G;
var TIME = 0;
var L01 = 1;
var L05 = 2;
var L15 = 3;
var width = 760;
var height = 300;
var step = 5;
var data_wanted = Math.floor(width / step);
var data_fill = 0;
var data_stamp = 0;
var data_01 = [ ];
var data_05 = [ ];
var data_15 = [ ];
var line_01;
var line_05;
var line_15;
var label_25;
var label_050;
var label_75;
var label_01_cur;
var label_01_avg;
var label_01_peak;
var label_05_cur;
var label_05_avg;
var label_05_peak;
var label_15_cur;
var label_15_avg;
var label_15_peak;
var label_scale;
/* wait for SVG */
window.setTimeout(
function() {
var svg = document.getElementById('bwsvg');
try {
G = svg.getSVGDocument
? svg.getSVGDocument() : svg.contentDocument;
}
catch(e) {
G = document.embeds['bwsvg'].getSVGDocument();
}
if (!G)
{
window.setTimeout(arguments.callee, 1000);
}
else
{
/* find sizes */
width = svg.offsetWidth - 2;
height = svg.offsetHeight - 2;
data_wanted = Math.ceil(width / step);
/* prefill datasets */
for (var i = 0; i < data_wanted; i++)
{
data_01[i] = 0;
data_05[i] = 0;
data_15[i] = 0;
}
/* find svg elements */
line_01 = G.getElementById('load01');
line_05 = G.getElementById('load05');
line_15 = G.getElementById('load15');
label_25 = G.getElementById('label_25');
label_50 = G.getElementById('label_50');
label_75 = G.getElementById('label_75');
label_01_cur = document.getElementById('lb_load01_cur');
label_01_avg = document.getElementById('lb_load01_avg');
label_01_peak = document.getElementById('lb_load01_peak');
label_05_cur = document.getElementById('lb_load05_cur');
label_05_avg = document.getElementById('lb_load05_avg');
label_05_peak = document.getElementById('lb_load05_peak');
label_15_cur = document.getElementById('lb_load15_cur');
label_15_avg = document.getElementById('lb_load15_avg');
label_15_peak = document.getElementById('lb_load15_peak');
label_scale = document.getElementById('scale');
/* plot horizontal time interval lines */
for (var i = width % (step * 60); i < width; i += step * 60)
{
var line = G.createElementNS('http://www.w3.org/2000/svg', 'line');
line.setAttribute('x1', i);
line.setAttribute('y1', 0);
line.setAttribute('x2', i);
line.setAttribute('y2', '100%');
line.setAttribute('style', 'stroke:black;stroke-width:0.1');
var text = G.createElementNS('http://www.w3.org/2000/svg', 'text');
text.setAttribute('x', i + 5);
text.setAttribute('y', 15);
text.setAttribute('style', 'fill:#eee; font-size:9pt; font-family:sans-serif; text-shadow:1px 1px 1px #000');
text.appendChild(G.createTextNode(Math.round((width - i) / step / 60) + 'm'));
label_25.parentNode.appendChild(line);
label_25.parentNode.appendChild(text);
}
label_scale.innerHTML = String.format('<%:(%d minute window, %d second interval)%>', data_wanted / 60, 3);
/* render datasets, start update interval */
XHR.poll(3, '<%=build_url("admin/status/realtime/load_status")%>', null,
function(x, data)
{
var data_max = 0;
var data_scale = 0;
var data_01_avg = 0;
var data_05_avg = 0;
var data_15_avg = 0;
var data_01_peak = 0;
var data_05_peak = 0;
var data_15_peak = 0;
for (var i = data_stamp ? 0 : 1; i < data.length; i++)
{
/* skip overlapping entries */
if (data[i][TIME] <= data_stamp)
continue;
data_01.push(data[i][L01]);
data_05.push(data[i][L05]);
data_15.push(data[i][L15]);
}
/* cut off outdated entries */
data_01 = data_01.slice(data_01.length - data_wanted, data_01.length);
data_05 = data_05.slice(data_05.length - data_wanted, data_05.length);
data_15 = data_15.slice(data_15.length - data_wanted, data_15.length);
/* find peak */
for (var i = 0; i < data_01.length; i++)
{
data_max = Math.max(data_max, data_01[i]);
data_max = Math.max(data_max, data_05[i]);
data_max = Math.max(data_max, data_15[i]);
data_01_peak = Math.max(data_01_peak, data_01[i]);
data_05_peak = Math.max(data_05_peak, data_05[i]);
data_15_peak = Math.max(data_15_peak, data_15[i]);
if (i > 0)
{
data_01_avg = (data_01_avg + data_01[i]) / 2;
data_05_avg = (data_05_avg + data_05[i]) / 2;
data_15_avg = (data_15_avg + data_15[i]) / 2;
}
else
{
data_01_avg = data_01[i];
data_05_avg = data_05[i];
data_15_avg = data_15[i];
}
}
/* remember current timestamp, calculate horizontal scale */
data_stamp = data[data.length-1][TIME];
data_scale = height / (data_max * 1.1);
/* plot data */
var pt_01 = '0,' + height;
var pt_05 = '0,' + height;
var pt_15 = '0,' + height;
var y_01 = 0;
var y_05 = 0;
var y_15 = 0;
for (var i = 0; i < data_01.length; i++)
{
var x = i * step;
y_01 = height - Math.floor(data_01[i] * data_scale);
y_05 = height - Math.floor(data_05[i] * data_scale);
y_15 = height - Math.floor(data_15[i] * data_scale);
pt_01 += ' ' + x + ',' + y_01;
pt_05 += ' ' + x + ',' + y_05;
pt_15 += ' ' + x + ',' + y_15;
}
pt_01 += ' ' + width + ',' + y_01 + ' ' + width + ',' + height;
pt_05 += ' ' + width + ',' + y_05 + ' ' + width + ',' + height;
pt_15 += ' ' + width + ',' + y_15 + ' ' + width + ',' + height;
line_01.setAttribute('points', pt_01);
line_05.setAttribute('points', pt_05);
line_15.setAttribute('points', pt_15);
label_25.firstChild.data = (1.1 * 0.25 * data_max / 100).toFixed(2);
label_50.firstChild.data = (1.1 * 0.50 * data_max / 100).toFixed(2);
label_75.firstChild.data = (1.1 * 0.75 * data_max / 100).toFixed(2);
label_01_cur.innerHTML = (data_01[data_01.length-1] / 100).toFixed(2);
label_05_cur.innerHTML = (data_05[data_05.length-1] / 100).toFixed(2);
label_15_cur.innerHTML = (data_15[data_15.length-1] / 100).toFixed(2);
label_01_avg.innerHTML = (data_01_avg / 100).toFixed(2);
label_05_avg.innerHTML = (data_05_avg / 100).toFixed(2);
label_15_avg.innerHTML = (data_15_avg / 100).toFixed(2);
label_01_peak.innerHTML = (data_01_peak / 100).toFixed(2);
label_05_peak.innerHTML = (data_05_peak / 100).toFixed(2);
label_15_peak.innerHTML = (data_15_peak / 100).toFixed(2);
}
);
XHR.run();
}
}, 1000
);
//]]></script>
<h2 name="content"><%:Realtime Load%></h2>
<embed id="bwsvg" style="width:100%; height:300px; border:1px solid #000000; background-color:#FFFFFF" src="<%=resource%>/load.svg" />
<div style="text-align:right"><small id="scale">-</small></div>
<br />
<div class="table" style="width:100%; table-layout:fixed" cellspacing="5">
<div class="tr">
<div class="td" style="text-align:right; vertical-align:top"><strong style="border-bottom:2px solid #ff0000; white-space:nowrap"><%:1 Minute Load:%></strong></div>
<div class="td" id="lb_load01_cur">0</div>
<div class="td" style="text-align:right; vertical-align:top"><strong><%:Average:%></strong></div>
<div class="td" id="lb_load01_avg">0</div>
<div class="td" style="text-align:right; vertical-align:top"><strong><%:Peak:%></strong></div>
<div class="td" id="lb_load01_peak">0</div>
</div>
<div class="tr">
<div class="td" style="text-align:right; vertical-align:top"><strong style="border-bottom:2px solid #ff6600; white-space:nowrap"><%:5 Minute Load:%></strong></div>
<div class="td" id="lb_load05_cur">0</div>
<div class="td" style="text-align:right; vertical-align:top"><strong><%:Average:%></strong></div>
<div class="td" id="lb_load05_avg">0</div>
<div class="td" style="text-align:right; vertical-align:top"><strong><%:Peak:%></strong></div>
<div class="td" id="lb_load05_peak">0</div>
</div>
<div class="tr">
<div class="td" style="text-align:right; vertical-align:top"><strong style="border-bottom:2px solid #ffaa00; white-space:nowrap"><%:15 Minute Load:%></strong></div>
<div class="td" id="lb_load15_cur">0</div>
<div class="td" style="text-align:right; vertical-align:top"><strong><%:Average:%></strong></div>
<div class="td" id="lb_load15_avg">0</div>
<div class="td" style="text-align:right; vertical-align:top"><strong><%:Peak:%></strong></div>
<div class="td" id="lb_load15_peak">0</div>
</div>
</div>
<%+footer%>
|
