Github user pwendell commented on a diff in the pull request:

    https://github.com/apache/spark/pull/86#discussion_r10330438
  
    --- Diff: 
core/src/main/scala/org/apache/spark/deploy/SparkAppArguments.scala ---
    @@ -0,0 +1,155 @@
    +/*
    + * 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
    +
    +import scala.collection.mutable.ArrayBuffer
    +
    +private[spark] class SparkAppArguments(args: Array[String]) {
    +  var master: String = null
    +  var deployMode: String = null
    +  var executorMemory: String = null
    +  var executorCores: String = null
    +  var driverMemory: String = null
    +  var supervise: Boolean = false
    +  var queue: String = null
    +  var numExecutors: String = null
    +  var files: String = null
    +  var archives: String = null
    +  var mainClass: String = null
    +  var primaryResource: String = null
    +  var name: String = null
    +  var childArgs: ArrayBuffer[String] = new ArrayBuffer[String]()
    +  var moreJars: String = null
    +  var clientClasspath: String = null
    +
    +  loadEnvVars()
    +  parseArgs(args.toList)
    +
    +  def loadEnvVars() {
    +    master = System.getenv("MASTER")
    +    deployMode = System.getenv("DEPLOY_MODE")
    +  }
    +
    +  def parseArgs(args: List[String]) {
    +    primaryResource = args(0)
    +    parseOpts(args.tail)
    +  }
    +
    +  def parseOpts(opts: List[String]): Unit = opts match {
    +    case ("--name") :: value :: tail =>
    +      name = value
    +      parseOpts(tail)
    +
    +    case ("--master") :: value :: tail =>
    +      master = value
    +      parseOpts(tail)
    +
    +    case ("--class") :: value :: tail =>
    +      mainClass = value
    +      parseOpts(tail)
    +
    +    case ("--deploy-mode") :: value :: tail =>
    +      if (value != "client" && value != "cluster") {
    +        System.err.println("--deploy-mode must be either \"client\" or 
\"cluster\"")
    +        System.exit(1)
    +      }
    +      deployMode = value
    +      parseOpts(tail)
    +
    +    case ("--num-executors") :: value :: tail =>
    +      numExecutors = value
    +      parseOpts(tail)
    +
    +    case ("--executor-cores") :: value :: tail =>
    +      executorCores = value
    +      parseOpts(tail)
    +
    +    case ("--executor-memory") :: value :: tail =>
    +      executorMemory = value
    +      parseOpts(tail)
    +
    +    case ("--driver-memory") :: value :: tail =>
    +      driverMemory = value
    +      parseOpts(tail)
    +
    +    case ("--supervise") :: tail =>
    +      supervise = true
    +      parseOpts(tail)
    +
    +    case ("--queue") :: value :: tail =>
    +      queue = value
    +      parseOpts(tail)
    +
    +    case ("--files") :: value :: tail =>
    +      files = value
    +      parseOpts(tail)
    +
    +    case ("--archives") :: value :: tail =>
    +      archives = value
    +      parseOpts(tail)
    +
    +    case ("--arg") :: value :: tail =>
    +      childArgs += value
    +      parseOpts(tail)
    +
    +    case ("--more-jars") :: value :: tail =>
    +      moreJars = value
    +      parseOpts(tail)
    +
    +    case ("--client-classpath") :: value :: tail =>
    +      clientClasspath = value
    +      parseOpts(tail)
    +
    +    case ("--help" | "-h") :: tail =>
    +      printUsageAndExit(0)
    +
    +    case Nil =>
    +
    +    case _ =>
    +      printUsageAndExit(1, opts)
    +  }
    +
    +  def printUsageAndExit(exitCode: Int, unknownParam: Any = null) {
    +    if (unknownParam != null) {
    +      System.err.println("Unknown/unsupported param " + unknownParam)
    +    }
    +    System.err.println(
    +      "Usage: spark-app <primary binary> [options] \n" +
    +        "Options:\n" +
    +        "  --master MASTER_URL        spark://host:port, 
mesos://host:port, yarn, or local\n" +
    --- End diff --
    
    I'd disable the scalastyle here so that it doesn't produce build errors. In 
this case I think it's fine to violate the line limit:
    http://www.scalastyle.org/configuration.html
    
    also there is a different way to do multline strings in scala - but up to 
you...
    http://downgra.de/2010/09/14/multi-line_strings_with_scala/


---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at infrastruct...@apache.org or file a JIRA ticket
with INFRA.
---

Reply via email to