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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.deploy.master.ui
import akka.util.Duration
import javax.servlet.http.HttpServletRequest
import org.eclipse.jetty.server.{Handler, Server}
import org.apache.spark.{Logging}
import org.apache.spark.deploy.master.Master
import org.apache.spark.ui.JettyUtils
import org.apache.spark.ui.JettyUtils._
import org.apache.spark.util.Utils
/**
* Web UI server for the standalone master.
*/
private[spark]
class MasterWebUI(val master: Master, requestedPort: Int) extends Logging {
implicit val timeout = Duration.create(
System.getProperty("spark.akka.askTimeout", "10").toLong, "seconds")
val host = Utils.localHostName()
val port = requestedPort
val masterActorRef = master.self
var server: Option[Server] = None
var boundPort: Option[Int] = None
val applicationPage = new ApplicationPage(this)
val indexPage = new IndexPage(this)
def start() {
try {
val (srv, bPort) = JettyUtils.startJettyServer("0.0.0.0", port, handlers)
server = Some(srv)
boundPort = Some(bPort)
logInfo("Started Master web UI at http://%s:%d".format(host, boundPort.get))
} catch {
case e: Exception =>
logError("Failed to create Master JettyUtils", e)
System.exit(1)
}
}
val metricsHandlers = master.masterMetricsSystem.getServletHandlers ++
master.applicationMetricsSystem.getServletHandlers
val handlers = metricsHandlers ++ Array[(String, Handler)](
("/static", createStaticHandler(MasterWebUI.STATIC_RESOURCE_DIR)),
("/app/json", (request: HttpServletRequest) => applicationPage.renderJson(request)),
("/app", (request: HttpServletRequest) => applicationPage.render(request)),
("/json", (request: HttpServletRequest) => indexPage.renderJson(request)),
("*", (request: HttpServletRequest) => indexPage.render(request))
)
def stop() {
server.foreach(_.stop())
}
}
private[spark] object MasterWebUI {
val STATIC_RESOURCE_DIR = "org/apache/spark/ui/static"
}
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