[SPARK-7927] whitespace fixes for Hive and ThriftServer.

So we can enable a whitespace enforcement rule in the style checker to save code review time.

Author: Reynold Xin <rxin@databricks.com>

Closes #6478 from rxin/whitespace-hive and squashes the following commits:

e01b0e0 [Reynold Xin] Fixed tests.
a3bba22 [Reynold Xin] [SPARK-7927] whitespace fixes for Hive and ThriftServer.

(cherry picked from commit ee6a0e12fb)
Signed-off-by: Reynold Xin <rxin@databricks.com>

sql/hive-thriftserver/src/test/scala/org/apache/spark/sql/hive/thriftserver/UISeleniumSuite.scala

@@ -73,7 +73,7 @@ class UISeleniumSuite
   }
 
   ignore("thrift server ui test") {
-    withJdbcStatement(statement =>{
+    withJdbcStatement { statement =>
       val baseURL = s"http://localhost:$uiPort"
 
       val queries = Seq(
@@ -97,6 +97,6 @@ class UISeleniumSuite
           findAll(cssSelector("""ul table tbody tr td""")).map(_.text).toList should contain (line)
         }
       }
-    })
+    }
   }
 }

sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveMetastoreCatalog.scala

@@ -546,13 +546,17 @@ private[hive] class HiveMetastoreCatalog(val client: ClientInterface, hive: Hive
    * UNIMPLEMENTED: It needs to be decided how we will persist in-memory tables to the metastore.
    * For now, if this functionality is desired mix in the in-memory [[OverrideCatalog]].
    */
-  override def registerTable(tableIdentifier: Seq[String], plan: LogicalPlan): Unit = ???
+  override def registerTable(tableIdentifier: Seq[String], plan: LogicalPlan): Unit = {
+    throw new UnsupportedOperationException
+  }
 
   /**
    * UNIMPLEMENTED: It needs to be decided how we will persist in-memory tables to the metastore.
    * For now, if this functionality is desired mix in the in-memory [[OverrideCatalog]].
    */
-  override def unregisterTable(tableIdentifier: Seq[String]): Unit = ???
+  override def unregisterTable(tableIdentifier: Seq[String]): Unit = {
+    throw new UnsupportedOperationException
+  }
 
   override def unregisterAllTables(): Unit = {}
 }

sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveQl.scala

@@ -1171,7 +1171,8 @@ https://cwiki.apache.org/confluence/display/Hive/Enhanced+Aggregation%2C+Cube%2C
       // worth the number of hacks that will be required to implement it.  Namely, we need to add
       // some sort of mapped star expansion that would expand all child output row to be similarly
       // named output expressions where some aggregate expression has been applied (i.e. First).
-      ??? // Aggregate(groups, Star(None, First(_)) :: Nil, joinedResult)
+      // Aggregate(groups, Star(None, First(_)) :: Nil, joinedResult)
+      throw new UnsupportedOperationException
 
     case Token(allJoinTokens(joinToken),
            relation1 ::

sql/hive/src/main/scala/org/apache/spark/sql/hive/execution/InsertIntoHiveTable.scala

@@ -195,8 +195,7 @@ case class InsertIntoHiveTable(
 
       // loadPartition call orders directories created on the iteration order of the this map
       val orderedPartitionSpec = new util.LinkedHashMap[String, String]()
-      table.hiveQlTable.getPartCols().foreach{
-        entry=>
+      table.hiveQlTable.getPartCols().foreach { entry =>
         orderedPartitionSpec.put(entry.getName, partitionSpec.get(entry.getName).getOrElse(""))
       }
       val partVals = MetaStoreUtils.getPvals(table.hiveQlTable.getPartCols, partitionSpec)