SPARK-1096, a space after comment start style checker.

Author: Prashant Sharma <prashant.s@imaginea.com>

Closes #124 from ScrapCodes/SPARK-1096/scalastyle-comment-check and squashes the following commits:

214135a [Prashant Sharma] Review feedback.
5eba88c [Prashant Sharma] Fixed style checks for ///+ comments.
e54b2f8 [Prashant Sharma] improved message, work around.
83e7144 [Prashant Sharma] removed dependency on scalastyle in plugin, since scalastyle sbt plugin already depends on the right version. Incase we update the plugin we will have to adjust our spark-style project to depend on right scalastyle version.
810a1d6 [Prashant Sharma] SPARK-1096, a space after comment style checker.
ba33193 [Prashant Sharma] scala style as a project

6 files changed, 7 insertions, 9 deletions

diff --git a/graphx/src/main/scala/org/apache/spark/graphx/EdgeTriplet.scala b/graphx/src/main/scala/org/apache/spark/graphx/EdgeTriplet.scala
index fea43c3b2b..dfc6a80158 100644
--- a/graphx/src/main/scala/org/apache/spark/graphx/EdgeTriplet.scala
+++ b/graphx/src/main/scala/org/apache/spark/graphx/EdgeTriplet.scala
@@ -27,12 +27,12 @@ class EdgeTriplet[VD, ED] extends Edge[ED] {
   /**
    * The source vertex attribute
    */
-  var srcAttr: VD = _ //nullValue[VD]
+  var srcAttr: VD = _ // nullValue[VD]
 
   /**
    * The destination vertex attribute
    */
-  var dstAttr: VD = _ //nullValue[VD]
+  var dstAttr: VD = _ // nullValue[VD]
 
   /**
    * Set the edge properties of this triplet.
diff --git a/graphx/src/main/scala/org/apache/spark/graphx/impl/GraphImpl.scala b/graphx/src/main/scala/org/apache/spark/graphx/impl/GraphImpl.scala
index 43ac11d895..c2b510a31e 100644
--- a/graphx/src/main/scala/org/apache/spark/graphx/impl/GraphImpl.scala
+++ b/graphx/src/main/scala/org/apache/spark/graphx/impl/GraphImpl.scala
@@ -190,9 +190,9 @@ class GraphImpl[VD: ClassTag, ED: ClassTag] protected (
     new GraphImpl(vertices, newETable, routingTable, replicatedVertexView)
   }
 
-  //////////////////////////////////////////////////////////////////////////////////////////////////
+  // ///////////////////////////////////////////////////////////////////////////////////////////////
   // Lower level transformation methods
-  //////////////////////////////////////////////////////////////////////////////////////////////////
+  // ///////////////////////////////////////////////////////////////////////////////////////////////
 
   override def mapReduceTriplets[A: ClassTag](
       mapFunc: EdgeTriplet[VD, ED] => Iterator[(VertexId, A)],
diff --git a/graphx/src/main/scala/org/apache/spark/graphx/impl/MessageToPartition.scala b/graphx/src/main/scala/org/apache/spark/graphx/impl/MessageToPartition.scala
index fe6fe76def..bebe3740bc 100644
--- a/graphx/src/main/scala/org/apache/spark/graphx/impl/MessageToPartition.scala
+++ b/graphx/src/main/scala/org/apache/spark/graphx/impl/MessageToPartition.scala
@@ -45,7 +45,7 @@ class VertexBroadcastMsg[@specialized(Int, Long, Double, Boolean) T](
  * @param data value to send
  */
 private[graphx]
-class MessageToPartition[@specialized(Int, Long, Double, Char, Boolean/*, AnyRef*/) T](
+class MessageToPartition[@specialized(Int, Long, Double, Char, Boolean/* , AnyRef*/) T](
     @transient var partition: PartitionID,
     var data: T)
   extends Product2[PartitionID, T] with Serializable {
diff --git a/graphx/src/main/scala/org/apache/spark/graphx/impl/Serializers.scala b/graphx/src/main/scala/org/apache/spark/graphx/impl/Serializers.scala
index 34a145e018..2f2c524df6 100644
--- a/graphx/src/main/scala/org/apache/spark/graphx/impl/Serializers.scala
+++ b/graphx/src/main/scala/org/apache/spark/graphx/impl/Serializers.scala
@@ -298,7 +298,6 @@ abstract class ShuffleSerializationStream(s: OutputStream) extends Serialization
     s.write(v.toInt)
   }
 
-  //def writeDouble(v: Double): Unit = writeUnsignedVarLong(java.lang.Double.doubleToLongBits(v))
   def writeDouble(v: Double): Unit = writeLong(java.lang.Double.doubleToLongBits(v))
 
   override def flush(): Unit = s.flush()
@@ -391,7 +390,6 @@ abstract class ShuffleDeserializationStream(s: InputStream) extends Deserializat
       (s.read() & 0xFF)
   }
 
-  //def readDouble(): Double = java.lang.Double.longBitsToDouble(readUnsignedVarLong())
   def readDouble(): Double = java.lang.Double.longBitsToDouble(readLong())
 
   override def close(): Unit = s.close()
diff --git a/graphx/src/main/scala/org/apache/spark/graphx/util/BytecodeUtils.scala b/graphx/src/main/scala/org/apache/spark/graphx/util/BytecodeUtils.scala
index 014a7335f8..087b1156f6 100644
--- a/graphx/src/main/scala/org/apache/spark/graphx/util/BytecodeUtils.scala
+++ b/graphx/src/main/scala/org/apache/spark/graphx/util/BytecodeUtils.scala
@@ -65,7 +65,7 @@ private[graphx] object BytecodeUtils {
       val finder = new MethodInvocationFinder(c.getName, m)
       getClassReader(c).accept(finder, 0)
       for (classMethod <- finder.methodsInvoked) {
-        //println(classMethod)
+        // println(classMethod)
         if (classMethod._1 == targetClass && classMethod._2 == targetMethod) {
           return true
         } else if (!seen.contains(classMethod)) {
diff --git a/graphx/src/main/scala/org/apache/spark/graphx/util/GraphGenerators.scala b/graphx/src/main/scala/org/apache/spark/graphx/util/GraphGenerators.scala
index f841846c0e..a3c8de3f90 100644
--- a/graphx/src/main/scala/org/apache/spark/graphx/util/GraphGenerators.scala
+++ b/graphx/src/main/scala/org/apache/spark/graphx/util/GraphGenerators.scala
@@ -123,7 +123,7 @@ object GraphGenerators {
    * the dimensions of the adjacency matrix
    */
   private def addEdge(numVertices: Int): Edge[Int] = {
-    //val (src, dst) = chooseCell(numVertices/2.0, numVertices/2.0, numVertices/2.0)
+    // val (src, dst) = chooseCell(numVertices/2.0, numVertices/2.0, numVertices/2.0)
     val v = math.round(numVertices.toFloat/2.0).toInt
 
     val (src, dst) = chooseCell(v, v, v)