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, 3 insertions, 7 deletions

diff --git a/examples/src/main/scala/org/apache/spark/examples/LocalALS.scala b/examples/src/main/scala/org/apache/spark/examples/LocalALS.scala
index c8ecbb8e41..0095cb8425 100644
--- a/examples/src/main/scala/org/apache/spark/examples/LocalALS.scala
+++ b/examples/src/main/scala/org/apache/spark/examples/LocalALS.scala
@@ -53,7 +53,6 @@ object LocalALS {
     for (i <- 0 until M; j <- 0 until U) {
       r.set(i, j, blas.ddot(ms(i), us(j)))
     }
-    //println("R: " + r)
     blas.daxpy(-1, targetR, r)
     val sumSqs = r.aggregate(Functions.plus, Functions.square)
     sqrt(sumSqs / (M * U))
diff --git a/examples/src/main/scala/org/apache/spark/examples/SimpleSkewedGroupByTest.scala b/examples/src/main/scala/org/apache/spark/examples/SimpleSkewedGroupByTest.scala
index 73b0e216ca..1fdb324b89 100644
--- a/examples/src/main/scala/org/apache/spark/examples/SimpleSkewedGroupByTest.scala
+++ b/examples/src/main/scala/org/apache/spark/examples/SimpleSkewedGroupByTest.scala
@@ -61,7 +61,7 @@ object SimpleSkewedGroupByTest {
     
     println("RESULT: " + pairs1.groupByKey(numReducers).count)
     // Print how many keys each reducer got (for debugging)
-    //println("RESULT: " + pairs1.groupByKey(numReducers)
+    // println("RESULT: " + pairs1.groupByKey(numReducers)
     //                           .map{case (k,v) => (k, v.size)}
     //                           .collectAsMap)
 
diff --git a/examples/src/main/scala/org/apache/spark/examples/SparkALS.scala b/examples/src/main/scala/org/apache/spark/examples/SparkALS.scala
index ce4b3c8451..f59ab7e7cc 100644
--- a/examples/src/main/scala/org/apache/spark/examples/SparkALS.scala
+++ b/examples/src/main/scala/org/apache/spark/examples/SparkALS.scala
@@ -54,7 +54,6 @@ object SparkALS {
     for (i <- 0 until M; j <- 0 until U) {
       r.set(i, j, blas.ddot(ms(i), us(j)))
     }
-    //println("R: " + r)
     blas.daxpy(-1, targetR, r)
     val sumSqs = r.aggregate(Functions.plus, Functions.square)
     sqrt(sumSqs / (M * U))
diff --git a/examples/src/main/scala/org/apache/spark/examples/SparkHdfsLR.scala b/examples/src/main/scala/org/apache/spark/examples/SparkHdfsLR.scala
index cf1fc3e808..e698b9bf37 100644
--- a/examples/src/main/scala/org/apache/spark/examples/SparkHdfsLR.scala
+++ b/examples/src/main/scala/org/apache/spark/examples/SparkHdfsLR.scala
@@ -34,8 +34,6 @@ object SparkHdfsLR {
   case class DataPoint(x: Vector, y: Double)
 
   def parsePoint(line: String): DataPoint = {
-    //val nums = line.split(' ').map(_.toDouble)
-    //return DataPoint(new Vector(nums.slice(1, D+1)), nums(0))
     val tok = new java.util.StringTokenizer(line, " ")
     var y = tok.nextToken.toDouble
     var x = new Array[Double](D)
diff --git a/examples/src/main/scala/org/apache/spark/streaming/examples/ActorWordCount.scala b/examples/src/main/scala/org/apache/spark/streaming/examples/ActorWordCount.scala
index 62d3a52615..a22e64ca3c 100644
--- a/examples/src/main/scala/org/apache/spark/streaming/examples/ActorWordCount.scala
+++ b/examples/src/main/scala/org/apache/spark/streaming/examples/ActorWordCount.scala
@@ -168,7 +168,7 @@ object ActorWordCount {
       Props(new SampleActorReceiver[String]("akka.tcp://test@%s:%s/user/FeederActor".format(
         host, port.toInt))), "SampleReceiver")
 
-    //compute wordcount
+    // compute wordcount
     lines.flatMap(_.split("\\s+")).map(x => (x, 1)).reduceByKey(_ + _).print()
 
     ssc.start()
diff --git a/examples/src/main/scala/org/apache/spark/streaming/examples/ZeroMQWordCount.scala b/examples/src/main/scala/org/apache/spark/streaming/examples/ZeroMQWordCount.scala
index 35be7ffa1e..35f8f885f8 100644
--- a/examples/src/main/scala/org/apache/spark/streaming/examples/ZeroMQWordCount.scala
+++ b/examples/src/main/scala/org/apache/spark/streaming/examples/ZeroMQWordCount.scala
@@ -88,7 +88,7 @@ object ZeroMQWordCount {
 
     def bytesToStringIterator(x: Seq[ByteString]) = (x.map(_.utf8String)).iterator
 
-    //For this stream, a zeroMQ publisher should be running.
+    // For this stream, a zeroMQ publisher should be running.
     val lines = ZeroMQUtils.createStream(ssc, url, Subscribe(topic), bytesToStringIterator _)
     val words = lines.flatMap(_.split(" "))
     val wordCounts = words.map(x => (x, 1)).reduceByKey(_ + _)