traffic_monitor/static/index.html - trafficcontrol - Git at Google

 <!DOCTYPE html>

 <!--
 Licensed to the Apache Software Foundation (ASF) under one
 or more contributor license agreements.  See the NOTICE file
 distributed with this work for additional information
 regarding copyright ownership.  The ASF licenses this file
 to you under the Apache License, Version 2.0 (the
 "License"); you may not use this file except in compliance
 with the License.  You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

 Unless required by applicable law or agreed to in writing,
 software distributed under the License is distributed on an
 "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 KIND, either express or implied.  See the License for the
 specific language governing permissions and limitations
 under the License.
 -->


 <html>
 <head>
 	<!-- <script src="sorttable.js"></script> -->
 	<meta charset="UTF-8">
 	<title>Traffic Monitor</title>
 	<style>
 		body {
 			font-family: "Lato", sans-serif;
 			font-size: 14px;
 			margin: 0;
 			max-width: 100vw;
 		}

 		table {
 			border-collapse: separate;
 			border-spacing: 0px 0;
 			width: 100%;
 		}

 		th, td {
 			padding:5px 20px 5px 5px;
 		}

 		th {
 			white-space: nowrap;
 		}

 		tbody tr:nth-child(even) {
 			background: #dfe
 		}
 		tbody tr:nth-child(odd) {
 			background: #fff
 		}

 		li.endpoint {
 			margin: 4px 0;
 		}

 		div#top-bar {
 			display: inline-flex;
 			justify-content: space-around;
 			align-items: center;
 			width: 100%;
 			margin: 15px 0;
 		}

 		div#links {
 			display: grid;
 			grid-template-columns: 1fr 1fr;
 			max-width: 100ch;
 		}
 		div#links div {
 			margin-left: 4px;
 		}
 		div#links a {
 			display: block;
 		}

 		tbody tr.error {
 			background-color: #f00;
 		}
 		tbody tr.warning {
 			background-color: #f80;
 		}

 	 	input[type=radio] {
 			visibility: hidden;
 			display: none;
 		}
 		label {
 			display: block;
 			padding: 14px 21px;
 			border-radius: 2px 2px 0 0;
 			cursor: pointer;
 			position: relative;
 			top: 4px;
 			transition: background-color ease-in-out 0.3s;
 			text-align: center;
 			border: 1px solid green;
 		}
 		label:hover {
 			background-color: #cfd;
 		}
 		ul.tabs {
 			list-style: none;
 			max-width: 100%;
 			border: 1px solid #ccc;
 			background-color: #f1f1f1;
 			position: relative;
 		}
 		div.tabcontent {
 			z-index: 2;
 			display: none;
 			visibility: hidden;
 			overflow: hidden;
 			width: 100%;
 			position: absolute;
 			top: 53px;
 			left: 0;
 			padding: 6px 0;
 			border-top: none;
 		}
 		input.tab:checked ~ div.tabcontent {
 			display: block;
 			visibility: visible;
 		}
 		input.tab:checked ~ label{
 			background-color: #adb;
 			border-bottom-width: 0;
 		}
 		ul.tabs li {
 			float: left;
 			display: block;
 		}
 	</style>
 	<script>
 		function init() {
 			getTopBar();
 			setInterval(getCacheCount, 4755);
 			setInterval(getCacheAvailableCount, 4800);
 			setInterval(getBandwidth, 4621);
 			setInterval(getBandwidthCapacity, 4591);
 			setInterval(getCacheDownCount, 4832);
 			setInterval(getVersion, 10007); // change to retry on failure, and only do on startup
 			setInterval(getTrafficOpsUri, 10019); // change to retry on failure, and only do on startup
 			setInterval(getTrafficOpsCdn, 10500); // change to retry on failure, and only do on startup
 			setInterval(getEvents, 2004); // change to retry on failure, and only do on startup
 			setInterval(getCacheStatuses, 5009);
 			setInterval(getDsStats, 4003);
 		}

 		// source: http://stackoverflow.com/a/2901298/292623
 		function numberStrWithCommas(x) {
 			return x.replace(/\B(?=(\d{3})+(?!\d))/g, ",");
 		}

 		function getCacheCount() {
 			ajax("/api/cache-count", function(r) {
 				document.getElementById("cache-count").innerHTML = r;
 			});
 		}

 		function getCacheAvailableCount() {
 			ajax("/api/cache-available-count", function(r) {
 				document.getElementById("cache-available").innerHTML = r;
 			});
 		}

 		function getBandwidth() {
 			ajax("/api/bandwidth-kbps", function(r) {
 				document.getElementById("bandwidth").innerHTML = numberStrWithCommas((parseFloat(r) / kilobitsInGigabit).toFixed(2));
 			});
 		}

 		function getBandwidthCapacity() {
 			ajax("/api/bandwidth-capacity-kbps", function(r) {
 				document.getElementById("bandwidth-capacity").innerHTML = numberStrWithCommas((r / kilobitsInGigabit).toString());
 			});
 		}

 		function getCacheDownCount() {
 			ajax("/api/cache-down-count", function(r) {
 				document.getElementById("cache-down").innerHTML = r;
 			});
 		}

 		function getVersion() {
 			ajax("/api/version", function(r) {
 				document.getElementById("version").innerHTML = r;
 			});
 		}

 		function getTrafficOpsUri() {
 			ajax("/api/traffic-ops-uri", function(r) {
 				document.getElementById("source-uri").innerHTML = "<a href='" + r + "'>" + r + "</a>";
 			});
 		}


 		function getTrafficOpsCdn() {
 			ajax("/publish/ConfigDoc", function(r) {
 				var j = JSON.parse(r);
 				document.getElementById("cdn-name").innerHTML = j.cdnName;
 			});
 		}

 		var lastEvent = 0;
 		function getEvents() {
 			/// \todo add /api/events-since/{index} (and change Traffic Monitor to keep latest
 			ajax("/publish/EventLog", function(r) {
 				var jdata = JSON.parse(r);
 				for (i = jdata.events.length - 1; i >= 0; i--) {
 					var event = jdata.events[i];
 					if (event.index <= lastEvent) {
 						continue;
 					}
 					lastEvent = event.index
 					var row = document.getElementById("event-log").insertRow(0); //document.createElement("tr");
 					row.classList.add("stripes");
 					row.insertCell(0).id = row.id + "-name";
 					document.getElementById(row.id + "-name").textContent = event.name;
 					document.getElementById(row.id + "-name").style.whiteSpace = "nowrap";
 					row.insertCell(1).textContent = event.type;
 					row.insertCell(2).textContent = event.isAvailable ? "available" : "offline";
 					if(event.isAvailable) {
 						row.classList.add("stripes");
 						row.classList.remove("error");
 					} else {
 						row.classList.add("error");
 						row.classList.remove("stripes");
 					}
 					row.insertCell(3).textContent = event.description;
 					row.insertCell(4).id = row.id + "-last";
 					document.getElementById(row.id + "-last").textContent = new Date(event.time * 1000).toISOString();
 					document.getElementById(row.id + "-last").style.whiteSpace = "nowrap";
 					document.getElementById(row.id + "-last").style.textAlign = "right";
 				}
 			});
 		}

 		function getCacheStates() {
 			ajax("/api/cache-statuses", function(r) {
 				var jdata = JSON.parse(r);
 				var servers = Object.keys(jdata); //debug
 				var table = document.getElementById("cache-states");
 				for (i = 0; i < servers.length; i++) {
 					var server = servers[i];
 					if (!document.getElementById("cache-states-" + server)) {
 						var row = table.insertRow(0); //document.createElement("tr");
 						row.classList.add("stripes");
 						row.id = "cache-states-" + server
 						row.insertCell(0).id = row.id + "-server";
 						row.insertCell(1).id = row.id + "-type";
 						row.insertCell(2).id = row.id + "-status";
 						row.insertCell(3).id = row.id + "-load-average";
 						row.insertCell(4).id = row.id + "-query-time";
 						row.insertCell(5).id = row.id + "-health-time";
 						row.insertCell(6).id = row.id + "-stat-time";
 						row.insertCell(7).id = row.id + "-health-span";
 						row.insertCell(8).id = row.id + "-stat-span";
 						row.insertCell(9).id = row.id + "-bandwidth";
 						row.insertCell(10).id = row.id + "-connection-count";
 						document.getElementById(row.id + "-server").textContent = server;
 						document.getElementById(row.id + "-server").style.whiteSpace = "nowrap";
 						document.getElementById(row.id + "-load-average").style.textAlign = "right";
 						document.getElementById(row.id + "-query-time").style.textAlign = "right";
 						document.getElementById(row.id + "-health-time").style.textAlign = "right";
 						document.getElementById(row.id + "-stat-time").style.textAlign = "right";
 						document.getElementById(row.id + "-health-span").style.textAlign = "right";
 						document.getElementById(row.id + "-stat-span").style.textAlign = "right";
 						document.getElementById(row.id + "-bandwidth").style.textAlign = "right";
 						document.getElementById(row.id + "-connection-count").style.textAlign = "right";
 					}

 					/* \todo change to iterate over members, and make cells id constructed from these*/
 					if (jdata[server].hasOwnProperty("type")) {
 						document.getElementById("cache-states-" + server + "-type").textContent = jdata[server].type;
 					}
 					if (jdata[server].hasOwnProperty("status")) {
 						document.getElementById("cache-states-" + server + "-status").textContent = jdata[server].status;
 						var row = document.getElementById("cache-states-" + server);
 						if (jdata[server].status.indexOf("ADMIN_DOWN") != -1 || jdata[server].status.indexOf("OFFLINE") != -1) {
 							row.classList.add("warning");
 							row.classList.remove("error");
 							row.classList.remove("stripes");
 						} else if (jdata[server].status.indexOf(" available") == -1 && jdata[server].status.indexOf("ONLINE") != 0) {
 							row.classList.add("error");
 							row.classList.remove("warning");
 							row.classList.remove("stripes");
 						} else {
 							row.classList.add("stripe");
 							row.classList.remove("warning");
 							row.classList.remove("error");
 						}
 					}
 					if (jdata[server].hasOwnProperty("load_average")) {
 						document.getElementById("cache-states-" + server + "-load-average").textContent = jdata[server].load_average;
 					}
 					if (jdata[server].hasOwnProperty("query_time_ms")) {
 						document.getElementById("cache-states-" + server + "-query-time").textContent = jdata[server].query_time_ms;
 					}
 					if (jdata[server].hasOwnProperty("health_time_ms")) {
 						document.getElementById("cache-states-" + server + "-health-time").textContent = jdata[server].health_time_ms;
 					}
 					if (jdata[server].hasOwnProperty("stat_time_ms")) {
 						document.getElementById("cache-states-" + server + "-stat-time").textContent = jdata[server].stat_time_ms;
 					}
 					if (jdata[server].hasOwnProperty("health_span_ms")) {
 						document.getElementById("cache-states-" + server + "-health-span").textContent = jdata[server].health_span_ms;
 					}
 					if (jdata[server].hasOwnProperty("stat_span_ms")) {
 						document.getElementById("cache-states-" + server + "-stat-span").textContent = jdata[server].stat_span_ms;
 					}
 					if (jdata[server].hasOwnProperty("bandwidth_kbps")) {
 						var kbps = (jdata[server].bandwidth_kbps / kilobitsInMegabit).toFixed(2);
 						var max = numberStrWithCommas((jdata[server].bandwidth_capacity_kbps / kilobitsInMegabit).toFixed(0));
 						document.getElementById("cache-states-" + server + "-bandwidth").textContent = '' + kbps + ' / ' + max;
 					} else {
 						document.getElementById("cache-states-" + server + "-bandwidth").textContent = "N/A";
 					}
 					if (jdata[server].hasOwnProperty("connection_count")) {
 						document.getElementById("cache-states-" + server + "-connection-count").textContent = jdata[server].connection_count;
 					} else {
 						document.getElementById("cache-states-" + server + "-connection-count").textContent = "N/A";
 					}
 				}

 				for (var i = 1, row; row = table.rows[i]; i++) { // start at 1, because row[0] is the header
 					var server = row.id.replace(/^cache-states-/, '');
 					if(!(server in jdata)) {
 						table.deleteRow(i);
 					}
 				}

 			})
 		}

 		var millisecondsInSecond = 1000;
 		var kilobitsInGigabit = 1000000;
 		var kilobitsInMegabit = 1000;

 		// dsDisplayFloat takes a float, and returns the string to display. For nonzero values, it returns two decimal places. For zero values, it returns an empty string, to make nonzero values more visible.
 		function dsDisplayFloat(f) {
 			var s = f
 			if (f != 0.0) {
 				s = f.toFixed(2);
 			}
 			return s
 		}

 		function getDsStats() {
 			var now = Date.now();

 			/// \todo add /api/delivery-service-stats which only returns the data needed by the UI, for efficiency
 			ajax("/publish/DsStats", function(r) {
 				var j = JSON.parse(r);
 				var jds = j.deliveryService
 				var deliveryServiceNames = Object.keys(jds); //debug
 				//decrementing for loop so DsNames are alphabetical A-Z
 				//TODO allow for filtering of columns so this isn't necessary
 					for (var i = deliveryServiceNames.length - 1; i >= 0; i--) {
 					var deliveryService = deliveryServiceNames[i];

 					if (!document.getElementById("deliveryservice-stats-" + deliveryService)) {
 						var row = document.getElementById("deliveryservice-stats").insertRow(0); //document.createElement("tr");
 						row.id = "deliveryservice-stats-" + deliveryService
 						row.insertCell(0).id = row.id + "-delivery-service";
 						row.insertCell(1).id = row.id + "-status";
 						row.insertCell(2).id = row.id + "-caches-reporting";
 						row.insertCell(3).id = row.id + "-bandwidth";
 						row.insertCell(4).id = row.id + "-tps";
 						row.insertCell(5).id = row.id + "-2xx";
 						row.insertCell(6).id = row.id + "-3xx";
 						row.insertCell(7).id = row.id + "-4xx";
 						row.insertCell(8).id = row.id + "-5xx";
 						row.insertCell(9).id = row.id + "-disabled-locations";
 						document.getElementById(row.id + "-delivery-service").textContent = deliveryService;
 						document.getElementById(row.id + "-delivery-service").style.whiteSpace = "nowrap";
 						document.getElementById(row.id + "-caches-reporting").style.textAlign = "right";
 						document.getElementById(row.id + "-bandwidth").style.textAlign = "right";
 						document.getElementById(row.id + "-tps").style.textAlign = "right";
 						document.getElementById(row.id + "-2xx").style.textAlign = "right";
 						document.getElementById(row.id + "-3xx").style.textAlign = "right";
 						document.getElementById(row.id + "-4xx").style.textAlign = "right";
 						document.getElementById(row.id + "-5xx").style.textAlign = "right";
 					}

 					// \todo check that array has a member before dereferencing [0]
 					if (jds[deliveryService].hasOwnProperty("isAvailable")) {
 						document.getElementById("deliveryservice-stats-" + deliveryService + "-status").textContent = jds[deliveryService]["isAvailable"][0].value == "true" ? "available" : "unavailable - " + jds[deliveryService]["error-string"][0].value;
 					}
 					if (jds[deliveryService].hasOwnProperty("caches-reporting") && jds[deliveryService].hasOwnProperty("caches-available") && jds[deliveryService].hasOwnProperty("caches-configured")) {
 						document.getElementById("deliveryservice-stats-" + deliveryService + "-caches-reporting").textContent = jds[deliveryService]['caches-reporting'][0].value + " / " + jds[deliveryService]['caches-available'][0].value + " / " + jds[deliveryService]['caches-configured'][0].value;
 					}
 					if (jds[deliveryService].hasOwnProperty("total.kbps")) {
 						document.getElementById("deliveryservice-stats-" + deliveryService + "-bandwidth").textContent = (jds[deliveryService]['total.kbps'][0].value / kilobitsInMegabit).toFixed(2);
 					} else {
 						document.getElementById("deliveryservice-stats-" + deliveryService + "-bandwidth").textContent = "N/A";
 					}
 					if (jds[deliveryService].hasOwnProperty("total.tps_total")) {
 						document.getElementById("deliveryservice-stats-" + deliveryService + "-tps").textContent = dsDisplayFloat(parseFloat(jds[deliveryService]['total.tps_total'][0].value));
 					} else {
 						document.getElementById("deliveryservice-stats-" + deliveryService + "-tps").textContent = "N/A";
 					}
 					if (jds[deliveryService].hasOwnProperty("total.tps_2xx")) {
 						document.getElementById("deliveryservice-stats-" + deliveryService + "-2xx").textContent = dsDisplayFloat(parseFloat(jds[deliveryService]['total.tps_2xx'][0].value));
 					} else {
 						document.getElementById("deliveryservice-stats-" + deliveryService + "-2xx").textContent = "N/A";
 					}
 					if (jds[deliveryService].hasOwnProperty("total.tps_3xx")) {
 						document.getElementById("deliveryservice-stats-" + deliveryService + "-3xx").textContent = dsDisplayFloat(parseFloat(jds[deliveryService]['total.tps_3xx'][0].value));
 					} else {
 						document.getElementById("deliveryservice-stats-" + deliveryService + "-3xx").textContent = "N/A";
 					}
 					if (jds[deliveryService].hasOwnProperty("total.tps_4xx")) {
 						document.getElementById("deliveryservice-stats-" + deliveryService + "-4xx").textContent = dsDisplayFloat(parseFloat(jds[deliveryService]['total.tps_4xx'][0].value));
 					} else {
 						document.getElementById("deliveryservice-stats-" + deliveryService + "-4xx").textContent = "N/A";
 					}
 					if (jds[deliveryService].hasOwnProperty("total.tps_5xx")) {
 						document.getElementById("deliveryservice-stats-" + deliveryService + "-5xx").textContent = dsDisplayFloat(parseFloat(jds[deliveryService]['total.tps_5xx'][0].value));
 					} else {
 						document.getElementById("deliveryservice-stats-" + deliveryService + "-5xx").textContent = "N/A";
 					}

 					// \todo implement disabled locations

 					var row = document.getElementById("deliveryservice-stats-" + deliveryService);
 					if (jds[deliveryService]["isAvailable"][0].value == "true") {
 						row.classList.add("stripes");
 						row.classList.remove("error");
 					} else {
 						row.classList.add("error");
 						row.classList.remove("stripes");
 					}
 				}
 			})
 		}

 		function getCacheStatuses() {
 			getCacheCount();
 			getCacheAvailableCount();
 			getCacheDownCount();
 			getCacheStates();
 		}

 		function getTopBar() {
 			getVersion();
 			getTrafficOpsUri();
 			getTrafficOpsCdn();
 			getCacheStatuses();
 		}

 		function ajax(endpoint, f) {
 			var xhttp = new XMLHttpRequest();
 			xhttp.onreadystatechange = function() {
 				if (xhttp.readyState == 4 && xhttp.status == 200) {
 					f(xhttp.responseText);
 				}
 			};
 			xhttp.open("GET", endpoint, true);
 			xhttp.send();
 		}
 	</script>
 </head>
 <body onload="init()">
 	<div id="top-bar">
 		<div>Caches: count=<span id="cache-count">0</span> available=<span id="cache-available">0</span> down=<span id="cache-down">0</span> </div>
 		<div>Bandwidth: <span id="bandwidth">0</span> / <span id="bandwidth-capacity">∞</span> gbps</div>
 		<div>Traffic Ops: <span id="source-uri">unknown</span></div>
 		<div>CDN: <span id="cdn-name">unknown</span></div>
 		<div>Version: <span id="version">unknown</span></div>
 	</div>

 	<div id="links">
 		<div>
 			<a href="/publish/EventLog">EventLog</a>
 			<a href="/publish/CacheStats">CacheStats</a>
 			<a href="/publish/DsStats">DsStats</a>
 			<a href="/publish/CrStates">CrStates (as published to Traffic Routers)</a>
 			<a href="/publish/CrConfig">CrConfig (json)</a>
 			<a href="/publish/PeerStates">PeerStates</a>
 			<a href="/publish/Stats">Stats</a>
 			<a href="/publish/StatSummary">StatSummary</a>
 			<a href="/publish/ConfigDoc">ConfigDoc</a>
 		</div>

 		<div>
 			<a href="/api/cache-count">/api/cache-count</a>
 			<a href="/api/cache-available-count">/api/cache-available-count</a>
 			<a href="/api/cache-down-count">/api/cache-down-count</a>
 			<a href="/api/version">/api/version</a>
 			<a href="/api/traffic-ops-uri">/api/traffic-ops-uri</a>
 			<a href="/api/cache-statuses">/api/cache-statuses</a>
 			<a href="/api/bandwidth-kbps">/api/bandwidth-kbps</a>
 			<a href="/api/bandwidth-capacity-kbps">/api/bandwidth-capacity-kbps</a>
 			<a href="/api/monitor-config">/api/monitor-config</a>
 			<a href="/api/crconfig-history">/api/crconfig-history</a>
 		</div>
 	</div>

 	<div id="update-num-text">Number of updates: <span id="update-num">0</span></div>
 	<div id="last-val-text">Last Val: <span id="last-val">0</span></div>
 	<ul class="tabs" role="tablist">
 		<li class="tab tab-header" id="cache-states-content-tab">
 			<input type="radio" name="tabs" class="tab" id="cache-states-input" checked />
 			<label for="cache-states-input" aria-selected="true">Cache States</label>
 			<div id="cache-states-content" class="tabcontent">
 				<table class="tab-grid sortable">
 					<thead>
 						<tr>
 							<th>Server</th>
 							<th>Type</th>
 							<th>Status</th>
 							<th align="right">Load Average</th>
 							<th align="right">Query Time (ms)</th>
 							<th align="right">Health Time (ms)</th>
 							<th align="right">Stat Time (ms)</th>
 							<th align="right">Health Span (ms)</th>
 							<th align="right">Stat Span (ms)</th>
 							<th align="right">Bandwidth (mbps)</th>
 							<th align="right">Connection Count</th>
 						</tr>
 					</thead>
 					<tbody id="cache-states"></tbody>
 				</table>
 			</div>
 		</li>

 		<li class="tab tab-header" id="deliveryservice-stats-content-tab">
 			<input type="radio" name="tabs" class="tab" id="deliveryservice-stats-input"/>
 			<label for="deliveryservice-stats-input" aria-selected="false">Delivery Service States</label>
 			<div id="deliveryservice-stats-content" class="tabcontent">
 				<table class="tab-grid sortable">
 					<thead>
 						<tr>
 							<th>Delivery Service</th>
 							<th>Status</th>
 							<th align="right">Caches Reporting/Available/Configured</th>
 							<th align="right">Bandwidth (mbps)</th>
 							<th align="right">t/sec</th>
 							<th align="right">2xx/sec</th>
 							<th align="right">3xx/sec</th>
 							<th align="right">4xx/sec</th>
 							<th align="right">5xx/sec</th>
 							<th>Disabled Locations</th>
 						</tr>
 					</thead>
 					<tbody id="deliveryservice-stats"></tbody>
 				</table>
 			</div>
 		</li>

 		<li id="event-log-content-tab" class="tab tab-header">
 			<input type="radio" name="tabs" class="tab" id="event-log-input"/>
 			<label for="event-log-input" aria-selected="false">Event Log</label>
 			<div id="event-log-content" class="tabcontent">
 				<table class="tab-grid sortable">
 					<thead>
 						<tr>
 							<th>Name</th>
 							<th>Type</th>
 							<th>Status</th>
 							<th>Description</th>
 							<th align="center" id="event-log-last-header">Event Time</th>
 						</tr>
 					</thead>
 					<tbody id="event-log"></tbody>
 				</table>
 			</div>
 		</li>
 	</ul>

 </body>
 </html>
	<!DOCTYPE html>

	<!--
	Licensed to the Apache Software Foundation (ASF) under one
	or more contributor license agreements. See the NOTICE file
	distributed with this work for additional information
	regarding copyright ownership. The ASF licenses this file
	to you under the Apache License, Version 2.0 (the
	"License"); you may not use this file except in compliance
	with the License. You may obtain a copy of the License at

	http://www.apache.org/licenses/LICENSE-2.0

	Unless required by applicable law or agreed to in writing,
	software distributed under the License is distributed on an
	"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
	KIND, either express or implied. See the License for the
	specific language governing permissions and limitations
	under the License.
	-->


	<html>
	<head>
	<!-- <script src="sorttable.js"></script> -->
	<meta charset="UTF-8">
	<title>Traffic Monitor</title>
	<style>
	body {
	font-family: "Lato", sans-serif;
	font-size: 14px;
	margin: 0;
	max-width: 100vw;
	}

	table {
	border-collapse: separate;
	border-spacing: 0px 0;
	width: 100%;
	}

	th, td {
	padding:5px 20px 5px 5px;
	}

	th {
	white-space: nowrap;
	}

	tbody tr:nth-child(even) {
	background: #dfe
	}
	tbody tr:nth-child(odd) {
	background: #fff
	}

	li.endpoint {
	margin: 4px 0;
	}

	div#top-bar {
	display: inline-flex;
	justify-content: space-around;
	align-items: center;
	width: 100%;
	margin: 15px 0;
	}

	div#links {
	display: grid;
	grid-template-columns: 1fr 1fr;
	max-width: 100ch;
	}
	div#links div {
	margin-left: 4px;
	}
	div#links a {
	display: block;
	}

	tbody tr.error {
	background-color: #f00;
	}
	tbody tr.warning {
	background-color: #f80;
	}

	input[type=radio] {
	visibility: hidden;
	display: none;
	}
	label {
	display: block;
	padding: 14px 21px;
	border-radius: 2px 2px 0 0;
	cursor: pointer;
	position: relative;
	top: 4px;
	transition: background-color ease-in-out 0.3s;
	text-align: center;
	border: 1px solid green;
	}
	label:hover {
	background-color: #cfd;
	}
	ul.tabs {
	list-style: none;
	max-width: 100%;
	border: 1px solid #ccc;
	background-color: #f1f1f1;
	position: relative;
	}
	div.tabcontent {
	z-index: 2;
	display: none;
	visibility: hidden;
	overflow: hidden;
	width: 100%;
	position: absolute;
	top: 53px;
	left: 0;
	padding: 6px 0;
	border-top: none;
	}
	input.tab:checked ~ div.tabcontent {
	display: block;
	visibility: visible;
	}
	input.tab:checked ~ label{
	background-color: #adb;
	border-bottom-width: 0;
	}
	ul.tabs li {
	float: left;
	display: block;
	}
	</style>
	<script>
	function init() {
	getTopBar();
	setInterval(getCacheCount, 4755);
	setInterval(getCacheAvailableCount, 4800);
	setInterval(getBandwidth, 4621);
	setInterval(getBandwidthCapacity, 4591);
	setInterval(getCacheDownCount, 4832);
	setInterval(getVersion, 10007); // change to retry on failure, and only do on startup
	setInterval(getTrafficOpsUri, 10019); // change to retry on failure, and only do on startup
	setInterval(getTrafficOpsCdn, 10500); // change to retry on failure, and only do on startup
	setInterval(getEvents, 2004); // change to retry on failure, and only do on startup
	setInterval(getCacheStatuses, 5009);
	setInterval(getDsStats, 4003);
	}

	// source: http://stackoverflow.com/a/2901298/292623
	function numberStrWithCommas(x) {
	return x.replace(/\B(?=(\d{3})+(?!\d))/g, ",");
	}

	function getCacheCount() {
	ajax("/api/cache-count", function(r) {
	document.getElementById("cache-count").innerHTML = r;
	});
	}

	function getCacheAvailableCount() {
	ajax("/api/cache-available-count", function(r) {
	document.getElementById("cache-available").innerHTML = r;
	});
	}

	function getBandwidth() {
	ajax("/api/bandwidth-kbps", function(r) {
	document.getElementById("bandwidth").innerHTML = numberStrWithCommas((parseFloat(r) / kilobitsInGigabit).toFixed(2));
	});
	}

	function getBandwidthCapacity() {
	ajax("/api/bandwidth-capacity-kbps", function(r) {
	document.getElementById("bandwidth-capacity").innerHTML = numberStrWithCommas((r / kilobitsInGigabit).toString());
	});
	}

	function getCacheDownCount() {
	ajax("/api/cache-down-count", function(r) {
	document.getElementById("cache-down").innerHTML = r;
	});
	}

	function getVersion() {
	ajax("/api/version", function(r) {
	document.getElementById("version").innerHTML = r;
	});
	}

	function getTrafficOpsUri() {
	ajax("/api/traffic-ops-uri", function(r) {
	document.getElementById("source-uri").innerHTML = "<a href='" + r + "'>" + r + "</a>";
	});
	}


	function getTrafficOpsCdn() {
	ajax("/publish/ConfigDoc", function(r) {
	var j = JSON.parse(r);
	document.getElementById("cdn-name").innerHTML = j.cdnName;
	});
	}

	var lastEvent = 0;
	function getEvents() {
	/// \todo add /api/events-since/{index} (and change Traffic Monitor to keep latest
	ajax("/publish/EventLog", function(r) {
	var jdata = JSON.parse(r);
	for (i = jdata.events.length - 1; i >= 0; i--) {
	var event = jdata.events[i];
	if (event.index <= lastEvent) {
	continue;
	}
	lastEvent = event.index
	var row = document.getElementById("event-log").insertRow(0); //document.createElement("tr");
	row.classList.add("stripes");
	row.insertCell(0).id = row.id + "-name";
	document.getElementById(row.id + "-name").textContent = event.name;
	document.getElementById(row.id + "-name").style.whiteSpace = "nowrap";
	row.insertCell(1).textContent = event.type;
	row.insertCell(2).textContent = event.isAvailable ? "available" : "offline";
	if(event.isAvailable) {
	row.classList.add("stripes");
	row.classList.remove("error");
	} else {
	row.classList.add("error");
	row.classList.remove("stripes");
	}
	row.insertCell(3).textContent = event.description;
	row.insertCell(4).id = row.id + "-last";
	document.getElementById(row.id + "-last").textContent = new Date(event.time * 1000).toISOString();
	document.getElementById(row.id + "-last").style.whiteSpace = "nowrap";
	document.getElementById(row.id + "-last").style.textAlign = "right";
	}
	});
	}

	function getCacheStates() {
	ajax("/api/cache-statuses", function(r) {
	var jdata = JSON.parse(r);
	var servers = Object.keys(jdata); //debug
	var table = document.getElementById("cache-states");
	for (i = 0; i < servers.length; i++) {
	var server = servers[i];
	if (!document.getElementById("cache-states-" + server)) {
	var row = table.insertRow(0); //document.createElement("tr");
	row.classList.add("stripes");
	row.id = "cache-states-" + server
	row.insertCell(0).id = row.id + "-server";
	row.insertCell(1).id = row.id + "-type";
	row.insertCell(2).id = row.id + "-status";
	row.insertCell(3).id = row.id + "-load-average";
	row.insertCell(4).id = row.id + "-query-time";
	row.insertCell(5).id = row.id + "-health-time";
	row.insertCell(6).id = row.id + "-stat-time";
	row.insertCell(7).id = row.id + "-health-span";
	row.insertCell(8).id = row.id + "-stat-span";
	row.insertCell(9).id = row.id + "-bandwidth";
	row.insertCell(10).id = row.id + "-connection-count";
	document.getElementById(row.id + "-server").textContent = server;
	document.getElementById(row.id + "-server").style.whiteSpace = "nowrap";
	document.getElementById(row.id + "-load-average").style.textAlign = "right";
	document.getElementById(row.id + "-query-time").style.textAlign = "right";
	document.getElementById(row.id + "-health-time").style.textAlign = "right";
	document.getElementById(row.id + "-stat-time").style.textAlign = "right";
	document.getElementById(row.id + "-health-span").style.textAlign = "right";
	document.getElementById(row.id + "-stat-span").style.textAlign = "right";
	document.getElementById(row.id + "-bandwidth").style.textAlign = "right";
	document.getElementById(row.id + "-connection-count").style.textAlign = "right";
	}

	/* \todo change to iterate over members, and make cells id constructed from these*/
	if (jdata[server].hasOwnProperty("type")) {
	document.getElementById("cache-states-" + server + "-type").textContent = jdata[server].type;
	}
	if (jdata[server].hasOwnProperty("status")) {
	document.getElementById("cache-states-" + server + "-status").textContent = jdata[server].status;
	var row = document.getElementById("cache-states-" + server);
	if (jdata[server].status.indexOf("ADMIN_DOWN") != -1 \|\| jdata[server].status.indexOf("OFFLINE") != -1) {
	row.classList.add("warning");
	row.classList.remove("error");
	row.classList.remove("stripes");
	} else if (jdata[server].status.indexOf(" available") == -1 && jdata[server].status.indexOf("ONLINE") != 0) {
	row.classList.add("error");
	row.classList.remove("warning");
	row.classList.remove("stripes");
	} else {
	row.classList.add("stripe");
	row.classList.remove("warning");
	row.classList.remove("error");
	}
	}
	if (jdata[server].hasOwnProperty("load_average")) {
	document.getElementById("cache-states-" + server + "-load-average").textContent = jdata[server].load_average;
	}
	if (jdata[server].hasOwnProperty("query_time_ms")) {
	document.getElementById("cache-states-" + server + "-query-time").textContent = jdata[server].query_time_ms;
	}
	if (jdata[server].hasOwnProperty("health_time_ms")) {
	document.getElementById("cache-states-" + server + "-health-time").textContent = jdata[server].health_time_ms;
	}
	if (jdata[server].hasOwnProperty("stat_time_ms")) {
	document.getElementById("cache-states-" + server + "-stat-time").textContent = jdata[server].stat_time_ms;
	}
	if (jdata[server].hasOwnProperty("health_span_ms")) {
	document.getElementById("cache-states-" + server + "-health-span").textContent = jdata[server].health_span_ms;
	}
	if (jdata[server].hasOwnProperty("stat_span_ms")) {
	document.getElementById("cache-states-" + server + "-stat-span").textContent = jdata[server].stat_span_ms;
	}
	if (jdata[server].hasOwnProperty("bandwidth_kbps")) {
	var kbps = (jdata[server].bandwidth_kbps / kilobitsInMegabit).toFixed(2);
	var max = numberStrWithCommas((jdata[server].bandwidth_capacity_kbps / kilobitsInMegabit).toFixed(0));
	document.getElementById("cache-states-" + server + "-bandwidth").textContent = '' + kbps + ' / ' + max;
	} else {
	document.getElementById("cache-states-" + server + "-bandwidth").textContent = "N/A";
	}
	if (jdata[server].hasOwnProperty("connection_count")) {
	document.getElementById("cache-states-" + server + "-connection-count").textContent = jdata[server].connection_count;
	} else {
	document.getElementById("cache-states-" + server + "-connection-count").textContent = "N/A";
	}
	}

	for (var i = 1, row; row = table.rows[i]; i++) { // start at 1, because row[0] is the header
	var server = row.id.replace(/^cache-states-/, '');
	if(!(server in jdata)) {
	table.deleteRow(i);
	}
	}

	})
	}

	var millisecondsInSecond = 1000;
	var kilobitsInGigabit = 1000000;
	var kilobitsInMegabit = 1000;

	// dsDisplayFloat takes a float, and returns the string to display. For nonzero values, it returns two decimal places. For zero values, it returns an empty string, to make nonzero values more visible.
	function dsDisplayFloat(f) {
	var s = f
	if (f != 0.0) {
	s = f.toFixed(2);
	}
	return s
	}

	function getDsStats() {
	var now = Date.now();

	/// \todo add /api/delivery-service-stats which only returns the data needed by the UI, for efficiency
	ajax("/publish/DsStats", function(r) {
	var j = JSON.parse(r);
	var jds = j.deliveryService
	var deliveryServiceNames = Object.keys(jds); //debug
	//decrementing for loop so DsNames are alphabetical A-Z
	//TODO allow for filtering of columns so this isn't necessary
	for (var i = deliveryServiceNames.length - 1; i >= 0; i--) {
	var deliveryService = deliveryServiceNames[i];

	if (!document.getElementById("deliveryservice-stats-" + deliveryService)) {
	var row = document.getElementById("deliveryservice-stats").insertRow(0); //document.createElement("tr");
	row.id = "deliveryservice-stats-" + deliveryService
	row.insertCell(0).id = row.id + "-delivery-service";
	row.insertCell(1).id = row.id + "-status";
	row.insertCell(2).id = row.id + "-caches-reporting";
	row.insertCell(3).id = row.id + "-bandwidth";
	row.insertCell(4).id = row.id + "-tps";
	row.insertCell(5).id = row.id + "-2xx";
	row.insertCell(6).id = row.id + "-3xx";
	row.insertCell(7).id = row.id + "-4xx";
	row.insertCell(8).id = row.id + "-5xx";
	row.insertCell(9).id = row.id + "-disabled-locations";
	document.getElementById(row.id + "-delivery-service").textContent = deliveryService;
	document.getElementById(row.id + "-delivery-service").style.whiteSpace = "nowrap";
	document.getElementById(row.id + "-caches-reporting").style.textAlign = "right";
	document.getElementById(row.id + "-bandwidth").style.textAlign = "right";
	document.getElementById(row.id + "-tps").style.textAlign = "right";
	document.getElementById(row.id + "-2xx").style.textAlign = "right";
	document.getElementById(row.id + "-3xx").style.textAlign = "right";
	document.getElementById(row.id + "-4xx").style.textAlign = "right";
	document.getElementById(row.id + "-5xx").style.textAlign = "right";
	}

	// \todo check that array has a member before dereferencing [0]
	if (jds[deliveryService].hasOwnProperty("isAvailable")) {
	document.getElementById("deliveryservice-stats-" + deliveryService + "-status").textContent = jds[deliveryService]["isAvailable"][0].value == "true" ? "available" : "unavailable - " + jds[deliveryService]["error-string"][0].value;
	}
	if (jds[deliveryService].hasOwnProperty("caches-reporting") && jds[deliveryService].hasOwnProperty("caches-available") && jds[deliveryService].hasOwnProperty("caches-configured")) {
	document.getElementById("deliveryservice-stats-" + deliveryService + "-caches-reporting").textContent = jds[deliveryService]['caches-reporting'][0].value + " / " + jds[deliveryService]['caches-available'][0].value + " / " + jds[deliveryService]['caches-configured'][0].value;
	}
	if (jds[deliveryService].hasOwnProperty("total.kbps")) {
	document.getElementById("deliveryservice-stats-" + deliveryService + "-bandwidth").textContent = (jds[deliveryService]['total.kbps'][0].value / kilobitsInMegabit).toFixed(2);
	} else {
	document.getElementById("deliveryservice-stats-" + deliveryService + "-bandwidth").textContent = "N/A";
	}
	if (jds[deliveryService].hasOwnProperty("total.tps_total")) {
	document.getElementById("deliveryservice-stats-" + deliveryService + "-tps").textContent = dsDisplayFloat(parseFloat(jds[deliveryService]['total.tps_total'][0].value));
	} else {
	document.getElementById("deliveryservice-stats-" + deliveryService + "-tps").textContent = "N/A";
	}
	if (jds[deliveryService].hasOwnProperty("total.tps_2xx")) {
	document.getElementById("deliveryservice-stats-" + deliveryService + "-2xx").textContent = dsDisplayFloat(parseFloat(jds[deliveryService]['total.tps_2xx'][0].value));
	} else {
	document.getElementById("deliveryservice-stats-" + deliveryService + "-2xx").textContent = "N/A";
	}
	if (jds[deliveryService].hasOwnProperty("total.tps_3xx")) {
	document.getElementById("deliveryservice-stats-" + deliveryService + "-3xx").textContent = dsDisplayFloat(parseFloat(jds[deliveryService]['total.tps_3xx'][0].value));
	} else {
	document.getElementById("deliveryservice-stats-" + deliveryService + "-3xx").textContent = "N/A";
	}
	if (jds[deliveryService].hasOwnProperty("total.tps_4xx")) {
	document.getElementById("deliveryservice-stats-" + deliveryService + "-4xx").textContent = dsDisplayFloat(parseFloat(jds[deliveryService]['total.tps_4xx'][0].value));
	} else {
	document.getElementById("deliveryservice-stats-" + deliveryService + "-4xx").textContent = "N/A";
	}
	if (jds[deliveryService].hasOwnProperty("total.tps_5xx")) {
	document.getElementById("deliveryservice-stats-" + deliveryService + "-5xx").textContent = dsDisplayFloat(parseFloat(jds[deliveryService]['total.tps_5xx'][0].value));
	} else {
	document.getElementById("deliveryservice-stats-" + deliveryService + "-5xx").textContent = "N/A";
	}

	// \todo implement disabled locations

	var row = document.getElementById("deliveryservice-stats-" + deliveryService);
	if (jds[deliveryService]["isAvailable"][0].value == "true") {
	row.classList.add("stripes");
	row.classList.remove("error");
	} else {
	row.classList.add("error");
	row.classList.remove("stripes");
	}
	}
	})
	}

	function getCacheStatuses() {
	getCacheCount();
	getCacheAvailableCount();
	getCacheDownCount();
	getCacheStates();
	}

	function getTopBar() {
	getVersion();
	getTrafficOpsUri();
	getTrafficOpsCdn();
	getCacheStatuses();
	}

	function ajax(endpoint, f) {
	var xhttp = new XMLHttpRequest();
	xhttp.onreadystatechange = function() {
	if (xhttp.readyState == 4 && xhttp.status == 200) {
	f(xhttp.responseText);
	}
	};
	xhttp.open("GET", endpoint, true);
	xhttp.send();
	}
	</script>
	</head>
	<body onload="init()">
	<div id="top-bar">
	<div>Caches: count=<span id="cache-count">0</span> available=<span id="cache-available">0</span> down=<span id="cache-down">0</span> </div>
	<div>Bandwidth: <span id="bandwidth">0</span> / <span id="bandwidth-capacity">∞</span> gbps</div>
	<div>Traffic Ops: <span id="source-uri">unknown</span></div>
	<div>CDN: <span id="cdn-name">unknown</span></div>
	<div>Version: <span id="version">unknown</span></div>
	</div>

	<div id="links">
	<div>
	<a href="/publish/EventLog">EventLog</a>
	<a href="/publish/CacheStats">CacheStats</a>
	<a href="/publish/DsStats">DsStats</a>
	<a href="/publish/CrStates">CrStates (as published to Traffic Routers)</a>
	<a href="/publish/CrConfig">CrConfig (json)</a>
	<a href="/publish/PeerStates">PeerStates</a>
	<a href="/publish/Stats">Stats</a>
	<a href="/publish/StatSummary">StatSummary</a>
	<a href="/publish/ConfigDoc">ConfigDoc</a>
	</div>

	<div>
	<a href="/api/cache-count">/api/cache-count</a>
	<a href="/api/cache-available-count">/api/cache-available-count</a>
	<a href="/api/cache-down-count">/api/cache-down-count</a>
	<a href="/api/version">/api/version</a>
	<a href="/api/traffic-ops-uri">/api/traffic-ops-uri</a>
	<a href="/api/cache-statuses">/api/cache-statuses</a>
	<a href="/api/bandwidth-kbps">/api/bandwidth-kbps</a>
	<a href="/api/bandwidth-capacity-kbps">/api/bandwidth-capacity-kbps</a>
	<a href="/api/monitor-config">/api/monitor-config</a>
	<a href="/api/crconfig-history">/api/crconfig-history</a>
	</div>
	</div>

	<div id="update-num-text">Number of updates: <span id="update-num">0</span></div>
	<div id="last-val-text">Last Val: <span id="last-val">0</span></div>
	<ul class="tabs" role="tablist">
	<li class="tab tab-header" id="cache-states-content-tab">
	<input type="radio" name="tabs" class="tab" id="cache-states-input" checked />
	<label for="cache-states-input" aria-selected="true">Cache States</label>
	<div id="cache-states-content" class="tabcontent">
	<table class="tab-grid sortable">
	<thead>
	<tr>
	<th>Server</th>
	<th>Type</th>
	<th>Status</th>
	<th align="right">Load Average</th>
	<th align="right">Query Time (ms)</th>
	<th align="right">Health Time (ms)</th>
	<th align="right">Stat Time (ms)</th>
	<th align="right">Health Span (ms)</th>
	<th align="right">Stat Span (ms)</th>
	<th align="right">Bandwidth (mbps)</th>
	<th align="right">Connection Count</th>
	</tr>
	</thead>
	<tbody id="cache-states"></tbody>
	</table>
	</div>
	</li>

	<li class="tab tab-header" id="deliveryservice-stats-content-tab">
	<input type="radio" name="tabs" class="tab" id="deliveryservice-stats-input"/>
	<label for="deliveryservice-stats-input" aria-selected="false">Delivery Service States</label>
	<div id="deliveryservice-stats-content" class="tabcontent">
	<table class="tab-grid sortable">
	<thead>
	<tr>
	<th>Delivery Service</th>
	<th>Status</th>
	<th align="right">Caches Reporting/Available/Configured</th>
	<th align="right">Bandwidth (mbps)</th>
	<th align="right">t/sec</th>
	<th align="right">2xx/sec</th>
	<th align="right">3xx/sec</th>
	<th align="right">4xx/sec</th>
	<th align="right">5xx/sec</th>
	<th>Disabled Locations</th>
	</tr>
	</thead>
	<tbody id="deliveryservice-stats"></tbody>
	</table>
	</div>
	</li>

	<li id="event-log-content-tab" class="tab tab-header">
	<input type="radio" name="tabs" class="tab" id="event-log-input"/>
	<label for="event-log-input" aria-selected="false">Event Log</label>
	<div id="event-log-content" class="tabcontent">
	<table class="tab-grid sortable">
	<thead>
	<tr>
	<th>Name</th>
	<th>Type</th>
	<th>Status</th>
	<th>Description</th>
	<th align="center" id="event-log-last-header">Event Time</th>
	</tr>
	</thead>
	<tbody id="event-log"></tbody>
	</table>
	</div>
	</li>
	</ul>

	</body>
	</html>