Repository: spark
Updated Branches:
  refs/heads/master 591c88c9e -> fe7246fea


[SPARK-12830] Java style: disallow trailing whitespaces.

Author: Reynold Xin <r...@databricks.com>

Closes #10764 from rxin/SPARK-12830.


Project: http://git-wip-us.apache.org/repos/asf/spark/repo
Commit: http://git-wip-us.apache.org/repos/asf/spark/commit/fe7246fe
Tree: http://git-wip-us.apache.org/repos/asf/spark/tree/fe7246fe
Diff: http://git-wip-us.apache.org/repos/asf/spark/diff/fe7246fe

Branch: refs/heads/master
Commit: fe7246fea67e1d71fba679dee3eb2c7386b4f4e2
Parents: 591c88c
Author: Reynold Xin <r...@databricks.com>
Authored: Thu Jan 14 23:33:45 2016 -0800
Committer: Reynold Xin <r...@databricks.com>
Committed: Thu Jan 14 23:33:45 2016 -0800

----------------------------------------------------------------------
 checkstyle.xml                                          |  8 +++++++-
 .../java/org/apache/spark/examples/JavaLogQuery.java    |  2 +-
 .../java/org/apache/spark/examples/JavaSparkPi.java     |  2 +-
 .../apache/spark/mllib/random/JavaRandomRDDsSuite.java  |  2 +-
 .../org/apache/spark/network/buffer/LazyFileRegion.java |  2 +-
 .../java/org/apache/spark/network/util/ByteUnit.java    | 12 ++++++------
 .../src/test/resources/data/conf/hive-log4j.properties  |  2 +-
 .../org/apache/spark/unsafe/types/UTF8StringSuite.java  |  2 +-
 8 files changed, 19 insertions(+), 13 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/spark/blob/fe7246fe/checkstyle.xml
----------------------------------------------------------------------
diff --git a/checkstyle.xml b/checkstyle.xml
index a493ee4..b5d1617 100644
--- a/checkstyle.xml
+++ b/checkstyle.xml
@@ -58,6 +58,12 @@
         <property name="eachLine" value="true"/>
     </module>
 
+    <module name="RegexpSingleline">
+        <!-- \s matches whitespace character, $ matches end of line. -->
+        <property name="format" value="\s+$"/>
+        <property name="message" value="No trailing whitespace allowed."/>
+    </module>
+
     <module name="TreeWalker">
         <module name="OuterTypeFilename"/>
         <module name="IllegalTokenText">
@@ -84,7 +90,7 @@
         </module>
         <module name="NeedBraces">
             <property name="allowSingleLineStatement" value="true"/>
-       </module>
+        </module>
         <module name="OneStatementPerLine"/>
         <module name="ArrayTypeStyle"/>
         <module name="FallThrough"/>

http://git-wip-us.apache.org/repos/asf/spark/blob/fe7246fe/examples/src/main/java/org/apache/spark/examples/JavaLogQuery.java
----------------------------------------------------------------------
diff --git a/examples/src/main/java/org/apache/spark/examples/JavaLogQuery.java 
b/examples/src/main/java/org/apache/spark/examples/JavaLogQuery.java
index 812e9d5..0448a1a 100644
--- a/examples/src/main/java/org/apache/spark/examples/JavaLogQuery.java
+++ b/examples/src/main/java/org/apache/spark/examples/JavaLogQuery.java
@@ -35,7 +35,7 @@ import java.util.regex.Pattern;
 
 /**
  * Executes a roll up-style query against Apache logs.
- *  
+ *
  * Usage: JavaLogQuery [logFile]
  */
 public final class JavaLogQuery {

http://git-wip-us.apache.org/repos/asf/spark/blob/fe7246fe/examples/src/main/java/org/apache/spark/examples/JavaSparkPi.java
----------------------------------------------------------------------
diff --git a/examples/src/main/java/org/apache/spark/examples/JavaSparkPi.java 
b/examples/src/main/java/org/apache/spark/examples/JavaSparkPi.java
index 0f07cb4..af87488 100644
--- a/examples/src/main/java/org/apache/spark/examples/JavaSparkPi.java
+++ b/examples/src/main/java/org/apache/spark/examples/JavaSparkPi.java
@@ -26,7 +26,7 @@ import org.apache.spark.api.java.function.Function2;
 import java.util.ArrayList;
 import java.util.List;
 
-/** 
+/**
  * Computes an approximation to pi
  * Usage: JavaSparkPi [slices]
  */

http://git-wip-us.apache.org/repos/asf/spark/blob/fe7246fe/mllib/src/test/java/org/apache/spark/mllib/random/JavaRandomRDDsSuite.java
----------------------------------------------------------------------
diff --git 
a/mllib/src/test/java/org/apache/spark/mllib/random/JavaRandomRDDsSuite.java 
b/mllib/src/test/java/org/apache/spark/mllib/random/JavaRandomRDDsSuite.java
index 5728df5..be58691 100644
--- a/mllib/src/test/java/org/apache/spark/mllib/random/JavaRandomRDDsSuite.java
+++ b/mllib/src/test/java/org/apache/spark/mllib/random/JavaRandomRDDsSuite.java
@@ -166,7 +166,7 @@ public class JavaRandomRDDsSuite {
   @SuppressWarnings("unchecked")
   public void testLogNormalVectorRDD() {
     double mean = 4.0;
-    double std = 2.0;  
+    double std = 2.0;
     long m = 100L;
     int n = 10;
     int p = 2;

http://git-wip-us.apache.org/repos/asf/spark/blob/fe7246fe/network/common/src/main/java/org/apache/spark/network/buffer/LazyFileRegion.java
----------------------------------------------------------------------
diff --git 
a/network/common/src/main/java/org/apache/spark/network/buffer/LazyFileRegion.java
 
b/network/common/src/main/java/org/apache/spark/network/buffer/LazyFileRegion.java
index 81bc8ec..162cf6d 100644
--- 
a/network/common/src/main/java/org/apache/spark/network/buffer/LazyFileRegion.java
+++ 
b/network/common/src/main/java/org/apache/spark/network/buffer/LazyFileRegion.java
@@ -32,7 +32,7 @@ import org.apache.spark.network.util.JavaUtils;
 /**
  * A FileRegion implementation that only creates the file descriptor when the 
region is being
  * transferred. This cannot be used with Epoll because there is no native 
support for it.
- * 
+ *
  * This is mostly copied from DefaultFileRegion implementation in Netty. In 
the future, we
  * should push this into Netty so the native Epoll transport can support this 
feature.
  */

http://git-wip-us.apache.org/repos/asf/spark/blob/fe7246fe/network/common/src/main/java/org/apache/spark/network/util/ByteUnit.java
----------------------------------------------------------------------
diff --git 
a/network/common/src/main/java/org/apache/spark/network/util/ByteUnit.java 
b/network/common/src/main/java/org/apache/spark/network/util/ByteUnit.java
index 36d6550..a2f0183 100644
--- a/network/common/src/main/java/org/apache/spark/network/util/ByteUnit.java
+++ b/network/common/src/main/java/org/apache/spark/network/util/ByteUnit.java
@@ -33,8 +33,8 @@ public enum ByteUnit {
   public long convertFrom(long d, ByteUnit u) {
     return u.convertTo(d, this);
   }
-  
-  // Convert the provided number (d) interpreted as this unit type to unit 
type (u). 
+
+  // Convert the provided number (d) interpreted as this unit type to unit 
type (u).
   public long convertTo(long d, ByteUnit u) {
     if (multiplier > u.multiplier) {
       long ratio = multiplier / u.multiplier;
@@ -44,7 +44,7 @@ public enum ByteUnit {
       }
       return d * ratio;
     } else {
-      // Perform operations in this order to avoid potential overflow 
+      // Perform operations in this order to avoid potential overflow
       // when computing d * multiplier
       return d / (u.multiplier / multiplier);
     }
@@ -54,14 +54,14 @@ public enum ByteUnit {
     if (d < 0) {
       throw new IllegalArgumentException("Negative size value. Size must be 
positive: " + d);
     }
-    return d * multiplier; 
+    return d * multiplier;
   }
-  
+
   public long toKiB(long d) { return convertTo(d, KiB); }
   public long toMiB(long d) { return convertTo(d, MiB); }
   public long toGiB(long d) { return convertTo(d, GiB); }
   public long toTiB(long d) { return convertTo(d, TiB); }
   public long toPiB(long d) { return convertTo(d, PiB); }
-  
+
   private final long multiplier;
 }

http://git-wip-us.apache.org/repos/asf/spark/blob/fe7246fe/sql/hive/src/test/resources/data/conf/hive-log4j.properties
----------------------------------------------------------------------
diff --git a/sql/hive/src/test/resources/data/conf/hive-log4j.properties 
b/sql/hive/src/test/resources/data/conf/hive-log4j.properties
index 885c86f..6a04247 100644
--- a/sql/hive/src/test/resources/data/conf/hive-log4j.properties
+++ b/sql/hive/src/test/resources/data/conf/hive-log4j.properties
@@ -47,7 +47,7 @@ log4j.appender.DRFA.layout.ConversionPattern=%d{ISO8601} %-5p 
%c{2} (%F:%M(%L))
 
 #
 # console
-# Add "console" to rootlogger above if you want to use this 
+# Add "console" to rootlogger above if you want to use this
 #
 
 log4j.appender.console=org.apache.log4j.ConsoleAppender

http://git-wip-us.apache.org/repos/asf/spark/blob/fe7246fe/unsafe/src/test/java/org/apache/spark/unsafe/types/UTF8StringSuite.java
----------------------------------------------------------------------
diff --git 
a/unsafe/src/test/java/org/apache/spark/unsafe/types/UTF8StringSuite.java 
b/unsafe/src/test/java/org/apache/spark/unsafe/types/UTF8StringSuite.java
index e21ffdc..bef5d71 100644
--- a/unsafe/src/test/java/org/apache/spark/unsafe/types/UTF8StringSuite.java
+++ b/unsafe/src/test/java/org/apache/spark/unsafe/types/UTF8StringSuite.java
@@ -378,7 +378,7 @@ public class UTF8StringSuite {
     assertTrue(Arrays.equals(fromString("ab,def,ghi").split(fromString(","), 
2),
       new UTF8String[]{fromString("ab"), fromString("def,ghi")}));
   }
-  
+
   @Test
   public void levenshteinDistance() {
     assertEquals(0, EMPTY_UTF8.levenshteinDistance(EMPTY_UTF8));


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