89 lines
2.9 KiB
Scala
89 lines
2.9 KiB
Scala
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package spark
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import java.io.File
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import java.net.InetAddress
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import org.eclipse.jetty.server.Server
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import org.eclipse.jetty.server.bio.SocketConnector
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import org.eclipse.jetty.server.handler.DefaultHandler
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import org.eclipse.jetty.server.handler.HandlerList
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import org.eclipse.jetty.server.handler.ResourceHandler
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import org.eclipse.jetty.util.thread.QueuedThreadPool
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/**
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* Exception type thrown by HttpServer when it is in the wrong state for an operation.
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*/
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private[spark] class ServerStateException(message: String) extends Exception(message)
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/**
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* An HTTP server for static content used to allow worker nodes to access JARs added to SparkContext
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* as well as classes created by the interpreter when the user types in code. This is just a wrapper
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* around a Jetty server.
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*/
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private[spark] class HttpServer(resourceBase: File) extends Logging {
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private var server: Server = null
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private var port: Int = -1
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def start() {
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if (server != null) {
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throw new ServerStateException("Server is already started")
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} else {
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server = new Server()
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val connector = new SocketConnector
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connector.setMaxIdleTime(60*1000)
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connector.setSoLingerTime(-1)
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connector.setPort(0)
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server.addConnector(connector)
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val threadPool = new QueuedThreadPool
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threadPool.setDaemon(true)
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server.setThreadPool(threadPool)
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val resHandler = new ResourceHandler
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resHandler.setResourceBase(resourceBase.getAbsolutePath)
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val handlerList = new HandlerList
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handlerList.setHandlers(Array(resHandler, new DefaultHandler))
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server.setHandler(handlerList)
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server.start()
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port = server.getConnectors()(0).getLocalPort()
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}
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}
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def stop() {
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if (server == null) {
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throw new ServerStateException("Server is already stopped")
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} else {
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server.stop()
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port = -1
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server = null
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}
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}
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/**
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* Get the URI of this HTTP server (http://host:port)
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*/
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def uri: String = {
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if (server == null) {
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throw new ServerStateException("Server is not started")
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} else {
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return "http://" + Utils.localIpAddress + ":" + port
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}
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}
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}
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