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From: andrewor14 <git@git.apache.org>
To: reviews@spark.apache.org
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References: <git-pr-4216-spark@git.apache.org>
In-Reply-To: <git-pr-4216-spark@git.apache.org>
Subject: [GitHub] spark pull request: [SPARK-5388] Provide a stable
 application subm...
Content-Type: text/plain
Message-Id: <20150129173931.92E19E055B@git1-us-west.apache.org>
Date: Thu, 29 Jan 2015 17:39:31 +0000 (UTC)

Github user andrewor14 commented on a diff in the pull request:

    https://github.com/apache/spark/pull/4216#discussion_r23786171
  
    --- Diff: core/src/main/scala/org/apache/spark/deploy/rest/SubmitRestProtocolMessage.scala ---
    @@ -0,0 +1,201 @@
    +/*
    + * 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.rest
    +
    +import scala.collection.Map
    +import scala.collection.JavaConversions._
    +
    +import org.json4s.jackson.JsonMethods._
    +import org.json4s.JsonAST._
    +
    +import org.apache.spark.Logging
    +import org.apache.spark.util.Utils
    +
    +/**
    + * A general message exchanged in the stable application submission REST protocol.
    + *
    + * The message is represented by a set of fields in the form of key value pairs.
    + * Each message must contain an ACTION field, which fully specifies the type of the message.
    + * For compatibility with older versions of Spark, existing fields must not be removed or
    + * modified, though new fields can be added as necessary.
    + */
    +private[spark] abstract class SubmitRestProtocolMessage(
    +    action: SubmitRestProtocolAction,
    +    actionField: ActionField,
    +    requiredFields: Seq[SubmitRestProtocolField]) {
    +
    +  // Maintain the insert order for converting to JSON later
    +  private val fields = new java.util.LinkedHashMap[SubmitRestProtocolField, String]
    +  val className = Utils.getFormattedClassName(this)
    +
    +  // Set the action field
    +  fields.put(actionField, action.toString)
    +
    +  /** Return all fields currently set in this message. */
    +  def getFields: Map[SubmitRestProtocolField, String] = fields.toMap
    --- End diff --
    
    No I wasn't referring to java serialization on case classes. I was referring exactly to using jackson with annotations and stuff.


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