Github user pwendell commented on a diff in the pull request:
https://github.com/apache/spark/pull/86#discussion_r10330871
--- Diff: core/src/main/scala/org/apache/spark/deploy/SparkApp.scala ---
@@ -0,0 +1,178 @@
+/*
+ * 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 java.io.BufferedReader
+import java.io.InputStream
+import java.io.InputStreamReader
+import java.io.PrintStream
+
+import scala.collection.mutable.HashMap
+import scala.collection.mutable.Map
+import scala.collection.mutable.ArrayBuffer
+import scala.collection.JavaConverters._
+
+object SparkApp {
+ val CLIENT = 1
+ val CLUSTER = 2
+ val YARN = 1
--- End diff --
These are created as flags, but since they are mutually exclusive would it
make more sense for them to be an `Enumeration`?
http://www.scala-lang.org/api/2.10.2/index.html#scala.Enumeration
I.e. is it possible for something to be both YARN and LOCAL?
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