spark UIUtils 源码
spark UIUtils 代码
文件路径：/core/src/main/scala/org/apache/spark/ui/UIUtils.scala
/*
* 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 java.{util => ju}
import java.lang.{Long => JLong}
import java.net.URLDecoder
import java.nio.charset.StandardCharsets.UTF_8
import java.text.SimpleDateFormat
import java.util.{Date, Locale, TimeZone}
import javax.servlet.http.HttpServletRequest
import javax.ws.rs.core.{MediaType, Response}
import scala.collection.JavaConverters._
import scala.util.control.NonFatal
import scala.xml._
import scala.xml.transform.{RewriteRule, RuleTransformer}
import org.apache.spark.internal.Logging
import org.apache.spark.ui.scope.RDDOperationGraph
/** Utility functions for generating XML pages with spark content. */
private[spark] object UIUtils extends Logging {
val TABLE_CLASS_NOT_STRIPED = "table table-bordered table-sm"
val TABLE_CLASS_STRIPED = TABLE_CLASS_NOT_STRIPED + " table-striped"
val TABLE_CLASS_STRIPED_SORTABLE = TABLE_CLASS_STRIPED + " sortable"
// SimpleDateFormat is not thread-safe. Don't expose it to avoid improper use.
private val dateFormat = new ThreadLocal[SimpleDateFormat]() {
override def initialValue(): SimpleDateFormat =
new SimpleDateFormat("yyyy/MM/dd HH:mm:ss", Locale.US)
}
def formatDate(date: Date): String = dateFormat.get.format(date)
def formatDate(timestamp: Long): String = dateFormat.get.format(new Date(timestamp))
def formatDuration(milliseconds: Long): String = {
if (milliseconds < 100) {
return "%d ms".format(milliseconds)
}
val seconds = milliseconds.toDouble / 1000
if (seconds < 1) {
return "%.1f s".format(seconds)
}
if (seconds < 60) {
return "%.0f s".format(seconds)
}
val minutes = seconds / 60
if (minutes < 10) {
return "%.1f min".format(minutes)
} else if (minutes < 60) {
return "%.0f min".format(minutes)
}
val hours = minutes / 60
"%.1f h".format(hours)
}
/** Generate a verbose human-readable string representing a duration such as "5 second 35 ms" */
def formatDurationVerbose(ms: Long): String = {
try {
val second = 1000L
val minute = 60 * second
val hour = 60 * minute
val day = 24 * hour
val week = 7 * day
val year = 365 * day
def toString(num: Long, unit: String): String = {
if (num == 0) {
""
} else if (num == 1) {
s"$num $unit"
} else {
s"$num ${unit}s"
}
}
val millisecondsString = if (ms >= second && ms % second == 0) "" else s"${ms % second} ms"
val secondString = toString((ms % minute) / second, "second")
val minuteString = toString((ms % hour) / minute, "minute")
val hourString = toString((ms % day) / hour, "hour")
val dayString = toString((ms % week) / day, "day")
val weekString = toString((ms % year) / week, "week")
val yearString = toString(ms / year, "year")
Seq(
second -> millisecondsString,
minute -> s"$secondString $millisecondsString",
hour -> s"$minuteString $secondString",
day -> s"$hourString $minuteString $secondString",
week -> s"$dayString $hourString $minuteString",
year -> s"$weekString $dayString $hourString"
).foreach { case (durationLimit, durationString) =>
if (ms < durationLimit) {
// if time is less than the limit (upto year)
return durationString
}
}
// if time is more than a year
s"$yearString $weekString $dayString"
} catch {
case e: Exception =>
logError("Error converting time to string", e)
// if there is some error, return blank string
""
}
}
// SimpleDateFormat is not thread-safe. Don't expose it to avoid improper use.
private val batchTimeFormat = new ThreadLocal[SimpleDateFormat]() {
override def initialValue(): SimpleDateFormat =
new SimpleDateFormat("yyyy/MM/dd HH:mm:ss", Locale.US)
}
private val batchTimeFormatWithMilliseconds = new ThreadLocal[SimpleDateFormat]() {
override def initialValue(): SimpleDateFormat =
new SimpleDateFormat("yyyy/MM/dd HH:mm:ss.SSS", Locale.US)
}
/**
* If `batchInterval` is less than 1 second, format `batchTime` with milliseconds. Otherwise,
* format `batchTime` without milliseconds.
*
* @param batchTime the batch time to be formatted
* @param batchInterval the batch interval
* @param showYYYYMMSS if showing the `yyyy/MM/dd` part. If it's false, the return value wll be
* only `HH:mm:ss` or `HH:mm:ss.SSS` depending on `batchInterval`
* @param timezone only for test
*/
def formatBatchTime(
batchTime: Long,
batchInterval: Long,
showYYYYMMSS: Boolean = true,
timezone: TimeZone = null): String = {
val oldTimezones =
(batchTimeFormat.get.getTimeZone, batchTimeFormatWithMilliseconds.get.getTimeZone)
if (timezone != null) {
batchTimeFormat.get.setTimeZone(timezone)
batchTimeFormatWithMilliseconds.get.setTimeZone(timezone)
}
try {
val formattedBatchTime =
if (batchInterval < 1000) {
batchTimeFormatWithMilliseconds.get.format(batchTime)
} else {
// If batchInterval >= 1 second, don't show milliseconds
batchTimeFormat.get.format(batchTime)
}
if (showYYYYMMSS) {
formattedBatchTime
} else {
formattedBatchTime.substring(formattedBatchTime.indexOf(' ') + 1)
}
} finally {
if (timezone != null) {
batchTimeFormat.get.setTimeZone(oldTimezones._1)
batchTimeFormatWithMilliseconds.get.setTimeZone(oldTimezones._2)
}
}
}
/** Generate a human-readable string representing a number (e.g. 100 K) */
def formatNumber(records: Double): String = {
val trillion = 1e12
val billion = 1e9
val million = 1e6
val thousand = 1e3
val (value, unit) = {
if (records >= 2*trillion) {
(records / trillion, " T")
} else if (records >= 2*billion) {
(records / billion, " B")
} else if (records >= 2*million) {
(records / million, " M")
} else if (records >= 2*thousand) {
(records / thousand, " K")
} else {
(records, "")
}
}
if (unit.isEmpty) {
"%d".formatLocal(Locale.US, value.toInt)
} else {
"%.1f%s".formatLocal(Locale.US, value, unit)
}
}
// Yarn has to go through a proxy so the base uri is provided and has to be on all links
def uiRoot(request: HttpServletRequest): String = {
// Knox uses X-Forwarded-Context to notify the application the base path
val knoxBasePath = Option(request.getHeader("X-Forwarded-Context"))
// SPARK-11484 - Use the proxyBase set by the AM, if not found then use env.
sys.props.get("spark.ui.proxyBase")
.orElse(sys.env.get("APPLICATION_WEB_PROXY_BASE"))
.orElse(knoxBasePath)
.getOrElse("")
}
def prependBaseUri(
request: HttpServletRequest,
basePath: String = "",
resource: String = ""): String = {
uiRoot(request) + basePath + resource
}
def commonHeaderNodes(request: HttpServletRequest): Seq[Node] = {
<meta http-equiv="Content-type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<link rel="stylesheet"
href={prependBaseUri(request, "/static/bootstrap.min.css")} type="text/css"/>
<link rel="stylesheet"
href={prependBaseUri(request, "/static/vis-timeline-graph2d.min.css")} type="text/css"/>
<link rel="stylesheet" href={prependBaseUri(request, "/static/webui.css")} type="text/css"/>
<link rel="stylesheet"
href={prependBaseUri(request, "/static/timeline-view.css")} type="text/css"/>
<script src={prependBaseUri(request, "/static/sorttable.js")} ></script>
<script src={prependBaseUri(request, "/static/jquery-3.5.1.min.js")}></script>
<script src={prependBaseUri(request, "/static/vis-timeline-graph2d.min.js")}></script>
<script src={prependBaseUri(request, "/static/bootstrap.bundle.min.js")}></script>
<script src={prependBaseUri(request, "/static/initialize-tooltips.js")}></script>
<script src={prependBaseUri(request, "/static/table.js")}></script>
<script src={prependBaseUri(request, "/static/timeline-view.js")}></script>
<script src={prependBaseUri(request, "/static/log-view.js")}></script>
<script src={prependBaseUri(request, "/static/webui.js")}></script>
<script>setUIRoot('{UIUtils.uiRoot(request)}')</script>
}
def vizHeaderNodes(request: HttpServletRequest): Seq[Node] = {
<link rel="stylesheet"
href={prependBaseUri(request, "/static/spark-dag-viz.css")} type="text/css" />
<script src={prependBaseUri(request, "/static/d3.min.js")}></script>
<script src={prependBaseUri(request, "/static/dagre-d3.min.js")}></script>
<script src={prependBaseUri(request, "/static/graphlib-dot.min.js")}></script>
<script src={prependBaseUri(request, "/static/spark-dag-viz.js")}></script>
}
def dataTablesHeaderNodes(request: HttpServletRequest): Seq[Node] = {
<link rel="stylesheet" href={prependBaseUri(request,
"/static/jquery.dataTables.1.10.25.min.css")} type="text/css"/>
<link rel="stylesheet"
href={prependBaseUri(request, "/static/dataTables.bootstrap4.1.10.25.min.css")}
type="text/css"/>
<link rel="stylesheet"
href={prependBaseUri(request, "/static/jsonFormatter.min.css")} type="text/css"/>
<link rel="stylesheet"
href={prependBaseUri(request, "/static/webui-dataTables.css")} type="text/css"/>
<script src={prependBaseUri(request, "/static/jquery.dataTables.1.10.25.min.js")}></script>
<script src={prependBaseUri(request, "/static/jquery.cookies.2.2.0.min.js")}></script>
<script src={prependBaseUri(request, "/static/jquery.blockUI.min.js")}></script>
<script src={prependBaseUri(request, "/static/dataTables.bootstrap4.1.10.25.min.js")}></script>
<script src={prependBaseUri(request, "/static/jsonFormatter.min.js")}></script>
<script src={prependBaseUri(request, "/static/jquery.mustache.js")}></script>
}
/** Returns a spark page with correctly formatted headers */
def headerSparkPage(
request: HttpServletRequest,
title: String,
content: => Seq[Node],
activeTab: SparkUITab,
helpText: Option[String] = None,
showVisualization: Boolean = false,
useDataTables: Boolean = false): Seq[Node] = {
val appName = activeTab.appName
val shortAppName = if (appName.length < 36) appName else appName.take(32) + "..."
val header = activeTab.headerTabs.map { tab =>
<li class={if (tab == activeTab) "nav-item active" else "nav-item"}>
<a class="nav-link"
href={prependBaseUri(request, activeTab.basePath, "/" + tab.prefix + "/")}>{tab.name}</a>
</li>
}
val helpButton: Seq[Node] = helpText.map(tooltip(_, "top")).getOrElse(Seq.empty)
<html>
<head>
{commonHeaderNodes(request)}
<script>setAppBasePath('{activeTab.basePath}')</script>
{if (showVisualization) vizHeaderNodes(request) else Seq.empty}
{if (useDataTables) dataTablesHeaderNodes(request) else Seq.empty}
<link rel="shortcut icon"
href={prependBaseUri(request, "/static/spark-logo-77x50px-hd.png")}></link>
<title>{appName} - {title}</title>
</head>
<body>
<nav class="navbar navbar-expand-md navbar-light bg-light mb-4">
<div class="navbar-header">
<div class="navbar-brand">
<a href={prependBaseUri(request, "/")}>
<img src={prependBaseUri(request, "/static/spark-logo-77x50px-hd.png")} />
<span class="version">{activeTab.appSparkVersion}</span>
</a>
</div>
</div>
<button class="navbar-toggler" type="button" data-toggle="collapse"
data-target="#navbarCollapse" aria-controls="navbarCollapse"
aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarCollapse">
<ul class="navbar-nav mr-auto">{header}</ul>
<span class="navbar-text navbar-right d-none d-md-block">
<strong title={appName} class="text-nowrap">{shortAppName}</strong>
<span class="text-nowrap">application UI</span>
</span>
</div>
</nav>
<div class="container-fluid">
<div class="row">
<div class="col-12">
<h3 style="vertical-align: bottom; white-space: nowrap; overflow: hidden;
text-overflow: ellipsis;">
{title}
{helpButton}
</h3>
</div>
</div>
<div class="row">
<div class="col-12">
{content}
</div>
</div>
</div>
</body>
</html>
}
/** Returns a page with the spark css/js and a simple format. Used for scheduler UI. */
def basicSparkPage(
request: HttpServletRequest,
content: => Seq[Node],
title: String,
useDataTables: Boolean = false): Seq[Node] = {
<html>
<head>
{commonHeaderNodes(request)}
{if (useDataTables) dataTablesHeaderNodes(request) else Seq.empty}
<link rel="shortcut icon"
href={prependBaseUri(request, "/static/spark-logo-77x50px-hd.png")}></link>
<title>{title}</title>
</head>
<body>
<div class="container-fluid">
<div class="row">
<div class="col-12">
<h3 style="vertical-align: middle; display: inline-block;">
<a style="text-decoration: none" href={prependBaseUri(request, "/")}>
<img src={prependBaseUri(request, "/static/spark-logo-77x50px-hd.png")} />
<span class="version"
style="margin-right: 15px;">{org.apache.spark.SPARK_VERSION}</span>
</a>
{title}
</h3>
</div>
</div>
<div class="row">
<div class="col-12">
{content}
</div>
</div>
</div>
</body>
</html>
}
/** Returns an HTML table constructed by generating a row for each object in a sequence. */
def listingTable[T](
headers: Seq[String],
generateDataRow: T => Seq[Node],
data: Iterable[T],
fixedWidth: Boolean = false,
id: Option[String] = None,
// When headerClasses is not empty, it should have the same length as headers parameter
headerClasses: Seq[String] = Seq.empty,
stripeRowsWithCss: Boolean = true,
sortable: Boolean = true,
// The tooltip information could be None, which indicates header does not have a tooltip.
// When tooltipHeaders is not empty, it should have the same length as headers parameter
tooltipHeaders: Seq[Option[String]] = Seq.empty): Seq[Node] = {
val listingTableClass = {
val _tableClass = if (stripeRowsWithCss) TABLE_CLASS_STRIPED else TABLE_CLASS_NOT_STRIPED
if (sortable) {
_tableClass + " sortable"
} else {
_tableClass
}
}
val colWidth = 100.toDouble / headers.size
val colWidthAttr = if (fixedWidth) colWidth + "%" else ""
def getClass(index: Int): String = {
if (index < headerClasses.size) {
headerClasses(index)
} else {
""
}
}
def getTooltip(index: Int): Option[String] = {
if (index < tooltipHeaders.size) {
tooltipHeaders(index)
} else {
None
}
}
val newlinesInHeader = headers.exists(_.contains("\n"))
def getHeaderContent(header: String): Seq[Node] = {
if (newlinesInHeader) {
<ul class="list-unstyled">
{ header.split("\n").map(t => <li> {t} </li>) }
</ul>
} else {
Text(header)
}
}
val headerRow: Seq[Node] = {
headers.view.zipWithIndex.map { x =>
getTooltip(x._2) match {
case Some(tooltip) =>
<th width={colWidthAttr} class={getClass(x._2)}>
<span data-toggle="tooltip" title={tooltip}>
{getHeaderContent(x._1)}
</span>
</th>
case None => <th width={colWidthAttr} class={getClass(x._2)}>{getHeaderContent(x._1)}</th>
}
}.toSeq
}
<table class={listingTableClass} id={id.map(Text.apply)}>
<thead>{headerRow}</thead>
<tbody>
{data.map(r => generateDataRow(r))}
</tbody>
</table>
}
def makeProgressBar(
started: Int,
completed: Int,
failed: Int,
skipped: Int,
reasonToNumKilled: Map[String, Int],
total: Int): Seq[Node] = {
val ratio = if (total == 0) 100.0 else (completed.toDouble / total) * 100
val completeWidth = "width: %s%%".format(ratio)
// started + completed can be > total when there are speculative tasks
val boundedStarted = math.min(started, total - completed)
val startRatio = if (total == 0) 0.0 else (boundedStarted.toDouble / total) * 100
val startWidth = "width: %s%%".format(startRatio)
<div class="progress">
<span style="text-align:center; position:absolute; width:100%;">
{completed}/{total}
{ if (failed == 0 && skipped == 0 && started > 0) s"($started running)" }
{ if (failed > 0) s"($failed failed)" }
{ if (skipped > 0) s"($skipped skipped)" }
{ reasonToNumKilled.toSeq.sortBy(-_._2).map {
case (reason, count) => s"($count killed: $reason)"
}
}
</span>
<div class="progress-bar progress-completed" style={completeWidth}></div>
<div class="progress-bar progress-started" style={startWidth}></div>
</div>
}
/** Return a "DAG visualization" DOM element that expands into a visualization for a stage. */
def showDagVizForStage(stageId: Int, graph: Option[RDDOperationGraph]): Seq[Node] = {
showDagViz(graph.toSeq, forJob = false)
}
/** Return a "DAG visualization" DOM element that expands into a visualization for a job. */
def showDagVizForJob(jobId: Int, graphs: Seq[RDDOperationGraph]): Seq[Node] = {
showDagViz(graphs, forJob = true)
}
/**
* Return a "DAG visualization" DOM element that expands into a visualization on the UI.
*
* This populates metadata necessary for generating the visualization on the front-end in
* a format that is expected by spark-dag-viz.js. Any changes in the format here must be
* reflected there.
*/
private def showDagViz(graphs: Seq[RDDOperationGraph], forJob: Boolean): Seq[Node] = {
<div>
<span id={if (forJob) "job-dag-viz" else "stage-dag-viz"}
class="expand-dag-viz" onclick={s"toggleDagViz($forJob);"}>
<span class="expand-dag-viz-arrow arrow-closed"></span>
<a data-toggle="tooltip" title={if (forJob) ToolTips.JOB_DAG else ToolTips.STAGE_DAG}
data-placement="top">
DAG Visualization
</a>
</span>
<div id="dag-viz-graph"></div>
<div id="dag-viz-metadata" style="display:none">
{
graphs.map { g =>
val stageId = g.rootCluster.id.replaceAll(RDDOperationGraph.STAGE_CLUSTER_PREFIX, "")
val skipped = g.rootCluster.name.contains("skipped").toString
<div class="stage-metadata" stage-id={stageId} skipped={skipped}>
<div class="dot-file">{RDDOperationGraph.makeDotFile(g)}</div>
{ g.incomingEdges.map { e => <div class="incoming-edge">{e.fromId},{e.toId}</div> } }
{ g.outgoingEdges.map { e => <div class="outgoing-edge">{e.fromId},{e.toId}</div> } }
{
g.rootCluster.getCachedNodes.map { n =>
<div class="cached-rdd">{n.id}</div>
} ++
g.rootCluster.getBarrierClusters.map { c =>
<div class="barrier-rdd">{c.id}</div>
} ++
g.rootCluster.getIndeterminateNodes.map { n =>
<div class="indeterminate-rdd">{n.id}</div>
}
}
</div>
}
}
</div>
</div>
}
def tooltip(text: String, position: String): Seq[Node] = {
<sup>
(<a data-toggle="tooltip" data-placement={position} title={text}>?</a>)
</sup>
}
/**
* Returns HTML rendering of a job or stage description. It will try to parse the string as HTML
* and make sure that it only contains anchors with root-relative links. Otherwise,
* the whole string will rendered as a simple escaped text.
*
* Note: In terms of security, only anchor tags with root relative links are supported. So any
* attempts to embed links outside Spark UI, or other tags like <script> will cause in
* the whole description to be treated as plain text.
*
* @param desc the original job or stage description string, which may contain html tags.
* @param basePathUri with which to prepend the relative links; this is used when plainText is
* false.
* @param plainText whether to keep only plain text (i.e. remove html tags) from the original
* description string.
* @return the HTML rendering of the job or stage description, which will be a Text when plainText
* is true, and an Elem otherwise.
*/
def makeDescription(desc: String, basePathUri: String, plainText: Boolean = false): NodeSeq = {
// If the description can be parsed as HTML and has only relative links, then render
// as HTML, otherwise render as escaped string
try {
// Try to load the description as unescaped HTML
val xml = XML.loadString(s"""<span class="description-input">$desc</span>""")
// Verify that this has only anchors and span (we are wrapping in span)
val allowedNodeLabels = Set("a", "span", "br")
val illegalNodes = (xml \\ "_").filterNot(node => allowedNodeLabels.contains(node.label))
if (illegalNodes.nonEmpty) {
throw new IllegalArgumentException(
"Only HTML anchors allowed in job descriptions\n" +
illegalNodes.map { n => s"${n.label} in $n"}.mkString("\n\t"))
}
// Verify that all links are relative links starting with "/"
val allLinks =
xml \\ "a" flatMap { _.attributes } filter { _.key == "href" } map { _.value.toString }
if (allLinks.exists { ! _.startsWith ("/") }) {
throw new IllegalArgumentException(
"Links in job descriptions must be root-relative:\n" + allLinks.mkString("\n\t"))
}
val rule =
if (plainText) {
// Remove all tags, retaining only their texts
new RewriteRule() {
override def transform(n: Node): Seq[Node] = {
n match {
case e: Elem if e.child.isEmpty => Text(e.text)
case e: Elem => Text(e.child.flatMap(transform).text)
case _ => n
}
}
}
}
else {
// Prepend the relative links with basePathUri
new RewriteRule() {
override def transform(n: Node): Seq[Node] = {
n match {
case e: Elem if (e \ "@href").nonEmpty =>
val relativePath = e.attribute("href").get.toString
val fullUri = s"${basePathUri.stripSuffix("/")}/${relativePath.stripPrefix("/")}"
e % Attribute(null, "href", fullUri, Null)
case _ => n
}
}
}
}
new RuleTransformer(rule).transform(xml)
} catch {
case NonFatal(e) =>
if (plainText) Text(desc) else <span class="description-input">{desc}</span>
}
}
/**
* Decode URLParameter if URL is encoded by YARN-WebAppProxyServlet.
* Due to YARN-2844: WebAppProxyServlet cannot handle urls which contain encoded characters
* Therefore we need to decode it until we get the real URLParameter.
*/
def decodeURLParameter(urlParam: String): String = {
var param = urlParam
var decodedParam = URLDecoder.decode(param, UTF_8.name())
while (param != decodedParam) {
param = decodedParam
decodedParam = URLDecoder.decode(param, UTF_8.name())
}
param
}
def getTimeZoneOffset() : Int =
TimeZone.getDefault().getOffset(System.currentTimeMillis()) / 1000 / 60
/**
* Return the correct Href after checking if master is running in the
* reverse proxy mode or not.
*/
def makeHref(proxy: Boolean, id: String, origHref: String): String = {
if (proxy) {
val proxyPrefix = sys.props.getOrElse("spark.ui.proxyBase", "")
proxyPrefix + "/proxy/" + id
} else {
origHref
}
}
def buildErrorResponse(status: Response.Status, msg: String): Response = {
Response.status(status).entity(msg).`type`(MediaType.TEXT_PLAIN).build()
}
/**
* There may be different duration labels in each batch. So we need to
* mark those missing duration label as '0d' to avoid UI rending error.
*/
def durationDataPadding(
values: Array[(Long, ju.Map[String, JLong])]): Array[(Long, Map[String, Double])] = {
val operationLabels = values.flatMap(_._2.keySet().asScala).toSet
values.map { case (xValue, yValue) =>
val dataPadding = operationLabels.map { opLabel =>
if (yValue.containsKey(opLabel)) {
(opLabel, yValue.get(opLabel).toDouble)
} else {
(opLabel, 0d)
}
}
(xValue, dataPadding.toMap)
}
}
def detailsUINode(isMultiline: Boolean, message: String): Seq[Node] = {
if (isMultiline) {
// scalastyle:off
<span onclick="this.parentNode.querySelector('.stacktrace-details').classList.toggle('collapsed')"
class="expand-details">
+details
</span> ++
<div class="stacktrace-details collapsed">
<pre>{message}</pre>
</div>
// scalastyle:on
} else {
Seq.empty[Node]
}
}
}
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