Work around for SI-8479

Author: pwendell

core/src/main/scala/org/apache/spark/SparkContext.scala

@@ -66,13 +66,13 @@ class SparkContext(config: SparkConf)
    * <span class="badge" style="float: right; background-color: #44751E;">DEVELOPER API</span>
    * Alternative constructor for setting preferred locations where Spark will create executors.
    *
-   * @param preferredNodeLocationData used in YARN mode to select nodes to launch containers on. Can
+   * @param preferredNodeLocationData used in YARN mode to select nodes to launch containers on. Ca
    * be generated using [[org.apache.spark.scheduler.InputFormatInfo.computePreferredLocations]]
    * from a list of input files or InputFormats for the application.
    */
-  def this(config: SparkConf, preferredNodeLocationData: Map[String, Set[SplitInfo]]) = {
-    this(config)
-    this.preferredNodeLocationData = preferredNodeLocationData
+    def this(config: SparkConf, preferredNodeLocationData: Map[String, Set[SplitInfo]]) = {
+      this(config)
+      this.preferredNodeLocationData = preferredNodeLocationData
   }
 
   /**
@@ -85,6 +85,10 @@ class SparkContext(config: SparkConf)
   def this(master: String, appName: String, conf: SparkConf) =
     this(SparkContext.updatedConf(conf, master, appName))
 
+  // NOTE: The below constructors could be consolidated using default arguments. Due to
+  // Scala bug SI-8479, however, this causes the compile step to fail when generating docs.
+  // Until we have a good workaround for that bug the constructors remain broken out.
+
   /**
    * Alternative constructor that allows setting common Spark properties directly
    *
@@ -100,13 +104,42 @@ class SparkContext(config: SparkConf)
       appName: String,
       sparkHome: String = null,
       jars: Seq[String] = Nil,
-      environment: Map[String, String] = Map(),
-      preferredNodeLocationData: Map[String, Set[SplitInfo]] = Map()) =
+      environment: Map[String, String] = Map()) =
   {
-    this(SparkContext.updatedConf(new SparkConf(), master, appName, sparkHome, jars, environment),
-      preferredNodeLocationData)
+    this(SparkContext.updatedConf(new SparkConf(), master, appName, sparkHome, jars, environment))
   }
 
+  /**
+   * Alternative constructor that allows setting common Spark properties directly
+   *
+   * @param master Cluster URL to connect to (e.g. mesos://host:port, spark://host:port, local[4]).
+   * @param appName A name for your application, to display on the cluster web UI.
+   */
+  def this(master: String, appName: String) =
+    this(master, appName, null, Nil, Map())
+
+  /**
+   * Alternative constructor that allows setting common Spark properties directly
+   *
+   * @param master Cluster URL to connect to (e.g. mesos://host:port, spark://host:port, local[4]).
+   * @param appName A name for your application, to display on the cluster web UI.
+   * @param sparkHome Location where Spark is installed on cluster nodes.
+   */
+  def this(master: String, appName: String, sparkHome: String) =
+    this(master, appName, sparkHome, Nil, Map())
+
+  /**
+   * Alternative constructor that allows setting common Spark properties directly
+   *
+   * @param master Cluster URL to connect to (e.g. mesos://host:port, spark://host:port, local[4]).
+   * @param appName A name for your application, to display on the cluster web UI.
+   * @param sparkHome Location where Spark is installed on cluster nodes.
+   * @param jars Collection of JARs to send to the cluster. These can be paths on the local file
+   *             system or HDFS, HTTP, HTTPS, or FTP URLs.
+   */
+  def this(master: String, appName: String, sparkHome: String, jars: Seq[String]) =
+    this(master, appName, sparkHome, jars, Map())
+
   private[spark] val conf = config.clone()
 
   /**