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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.env
import javax.servlet.http.HttpServletRequest
import scala.collection.JavaConversions._
import scala.util.Properties
import scala.xml.Node
import org.eclipse.jetty.server.Handler
import org.apache.spark.ui.JettyUtils._
import org.apache.spark.ui.UIUtils
import org.apache.spark.ui.Page.Environment
import org.apache.spark.SparkContext
private[spark] class EnvironmentUI(sc: SparkContext) {
def getHandlers = Seq[(String, Handler)](
("/environment", (request: HttpServletRequest) => envDetails(request))
)
def envDetails(request: HttpServletRequest): Seq[Node] = {
val jvmInformation = Seq(
("Java Version", "%s (%s)".format(Properties.javaVersion, Properties.javaVendor)),
("Java Home", Properties.javaHome),
("Scala Version", Properties.versionString),
("Scala Home", Properties.scalaHome)
).sorted
def jvmRow(kv: (String, String)) = <tr><td>{kv._1}</td><td>{kv._2}</td></tr>
def jvmTable =
UIUtils.listingTable(Seq("Name", "Value"), jvmRow, jvmInformation, fixedWidth = true)
val properties = System.getProperties.iterator.toSeq
val classPathProperty = properties.find { case (k, v) =>
k.contains("java.class.path")
}.getOrElse(("", ""))
val sparkProperties = properties.filter(_._1.startsWith("spark")).sorted
val otherProperties = properties.diff(sparkProperties :+ classPathProperty).sorted
val propertyHeaders = Seq("Name", "Value")
def propertyRow(kv: (String, String)) = <tr><td>{kv._1}</td><td>{kv._2}</td></tr>
val sparkPropertyTable =
UIUtils.listingTable(propertyHeaders, propertyRow, sparkProperties, fixedWidth = true)
val otherPropertyTable =
UIUtils.listingTable(propertyHeaders, propertyRow, otherProperties, fixedWidth = true)
val classPathEntries = classPathProperty._2
.split(System.getProperty("path.separator", ":"))
.filterNot(e => e.isEmpty)
.map(e => (e, "System Classpath"))
val addedJars = sc.addedJars.iterator.toSeq.map{case (path, time) => (path, "Added By User")}
val addedFiles = sc.addedFiles.iterator.toSeq.map{case (path, time) => (path, "Added By User")}
val classPath = (addedJars ++ addedFiles ++ classPathEntries).sorted
val classPathHeaders = Seq("Resource", "Source")
def classPathRow(data: (String, String)) = <tr><td>{data._1}</td><td>{data._2}</td></tr>
val classPathTable =
UIUtils.listingTable(classPathHeaders, classPathRow, classPath, fixedWidth = true)
val content =
<span>
<h4>Runtime Information</h4> {jvmTable}
<h4>Spark Properties</h4>
{sparkPropertyTable}
<h4>System Properties</h4>
{otherPropertyTable}
<h4>Classpath Entries</h4>
{classPathTable}
</span>
UIUtils.headerSparkPage(content, sc, "Environment", Environment)
}
}
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