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/*
* 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.
*/
package org.apache.spark.ui
import scala.xml.Node
import org.apache.spark.SparkContext
/** Utility functions for generating XML pages with spark content. */
private[spark] object UIUtils {
import Page._
// Yarn has to go through a proxy so the base uri is provided and has to be on all links
private[spark] val uiRoot : String = Option(System.getenv("APPLICATION_WEB_PROXY_BASE")).
getOrElse("")
def prependBaseUri(resource: String = "") = uiRoot + resource
/** Returns a spark page with correctly formatted headers */
def headerSparkPage(content: => Seq[Node], sc: SparkContext, title: String, page: Page.Value)
: Seq[Node] = {
val jobs = page match {
case Stages => <li class="active"><a href={prependBaseUri("/stages")}>Stages</a></li>
case _ => <li><a href={prependBaseUri("/stages")}>Stages</a></li>
}
val storage = page match {
case Storage => <li class="active"><a href={prependBaseUri("/storage")}>Storage</a></li>
case _ => <li><a href={prependBaseUri("/storage")}>Storage</a></li>
}
val environment = page match {
case Environment =>
<li class="active"><a href={prependBaseUri("/environment")}>Environment</a></li>
case _ => <li><a href={prependBaseUri("/environment")}>Environment</a></li>
}
val executors = page match {
case Executors =>
<li class="active"><a href={prependBaseUri("/executors")}>Executors</a></li>
case _ => <li><a href={prependBaseUri("/executors")}>Executors</a></li>
}
<html>
<head>
<meta http-equiv="Content-type" content="text/html; charset=utf-8" />
<link rel="stylesheet" href={prependBaseUri("/static/bootstrap.min.css")}
type="text/css" />
<link rel="stylesheet" href={prependBaseUri("/static/webui.css")} type="text/css" />
<script src={prependBaseUri("/static/sorttable.js")} ></script>
<title>{sc.appName} - {title}</title>
</head>
<body>
<div class="navbar navbar-static-top">
<div class="navbar-inner">
<a href={prependBaseUri("/")} class="brand">
<img src={prependBaseUri("/static/spark-logo-77x50px-hd.png")} />
</a>
<ul class="nav">
{jobs}
{storage}
{environment}
{executors}
</ul>
<p class="navbar-text pull-right"><strong>{sc.appName}</strong> application UI</p>
</div>
</div>
<div class="container-fluid">
<div class="row-fluid">
<div class="span12">
<h3 style="vertical-align: bottom; display: inline-block;">
{title}
</h3>
</div>
</div>
{content}
</div>
</body>
</html>
}
/** Returns a page with the spark css/js and a simple format. Used for scheduler UI. */
def basicSparkPage(content: => Seq[Node], title: String): Seq[Node] = {
<html>
<head>
<meta http-equiv="Content-type" content="text/html; charset=utf-8" />
<link rel="stylesheet" href={prependBaseUri("/static/bootstrap.min.css")}
type="text/css" />
<link rel="stylesheet" href={prependBaseUri("/static/webui.css")} type="text/css" />
<script src={prependBaseUri("/static/sorttable.js")} ></script>
<title>{title}</title>
</head>
<body>
<div class="container-fluid">
<div class="row-fluid">
<div class="span12">
<h3 style="vertical-align: middle; display: inline-block;">
<img src={prependBaseUri("/static/spark-logo-77x50px-hd.png")}
style="margin-right: 15px;" />
{title}
</h3>
</div>
</div>
{content}
</div>
</body>
</html>
}
/** Returns an HTML table constructed by generating a row for each object in a sequence. */
def listingTable[T](
headers: Seq[String],
makeRow: T => Seq[Node],
rows: Seq[T],
fixedWidth: Boolean = false): Seq[Node] = {
val colWidth = 100.toDouble / headers.size
val colWidthAttr = if (fixedWidth) colWidth + "%" else ""
var tableClass = "table table-bordered table-striped table-condensed sortable"
if (fixedWidth) {
tableClass += " table-fixed"
}
<table class={tableClass}>
<thead>{headers.map(h => <th width={colWidthAttr}>{h}</th>)}</thead>
<tbody>
{rows.map(r => makeRow(r))}
</tbody>
</table>
}
}
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