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Posted to commits@kylin.apache.org by ma...@apache.org on 2016/06/25 11:12:17 UTC

[16/18] kylin git commit: KYLIN-1821 Reformat all of the java files and enable checkstyle to enforce code formatting

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/checkstyle-suppressions.xml
----------------------------------------------------------------------
diff --git a/checkstyle-suppressions.xml b/checkstyle-suppressions.xml
new file mode 100644
index 0000000..d247c65
--- /dev/null
+++ b/checkstyle-suppressions.xml
@@ -0,0 +1,37 @@
+<?xml version="1.0"?>
+<!DOCTYPE suppressions PUBLIC
+    "-//Puppy Crawl//DTD Suppressions 1.0//EN"
+    "http://www.puppycrawl.com/dtds/suppressions_1_0.dtd">
+  <!--
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+  ON MVN COMPILE NOT WORKING
+
+  If you wondering why 'mvn compile' does not work building HBase
+  (in particular, if you are doing it for the first time), instead do
+  'mvn package'.  If you are interested in the full story, see
+  https://issues.apache.org/jira/browse/HBASE-6795.
+
+-->
+<suppressions>
+  <suppress checks="." files=".*/generated/.*\.java"/>
+  <suppress checks="." files="/org/apache/calcite/.*\.java"/>
+  <suppress checks="MagicNumberCheck" files=".*Test\.java"/>
+</suppressions>

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/checkstyle.xml
----------------------------------------------------------------------
diff --git a/checkstyle.xml b/checkstyle.xml
new file mode 100644
index 0000000..10ba67b
--- /dev/null
+++ b/checkstyle.xml
@@ -0,0 +1,60 @@
+<?xml version="1.0"?>
+<!--
+  ~ Licensed to the Apache Software Foundation (ASF) under one
+  ~ or more contributor license agreements.  See the NOTICE file
+  ~ distributed with this work for additional information
+  ~ regarding copyright ownership.  The ASF licenses this file
+  ~ to you under the Apache License, Version 2.0 (the
+  ~ "License"); you may not use this file except in compliance
+  ~ with the License.  You may obtain a copy of the License at
+  ~  
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~  
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<!DOCTYPE module PUBLIC "-//Puppy Crawl//DTD Check Configuration 1.3//EN"
+        "http://www.puppycrawl.com/dtds/configuration_1_3.dtd">
+<module name="Checker">
+    <module name="FileTabCharacter"/>
+    <module name="SuppressWarningsFilter" />
+    <module name="TreeWalker">
+        <module name="AvoidStarImport"/>
+        <module name="RedundantImport"/>
+        <module name="UnusedImports">
+                <property name="processJavadoc" value="true"/>
+        </module>
+        <module name="LineLength">
+            <property name="max" value="1000"/>
+            <property name="ignorePattern"
+                      value="^package.*|^import.*|a href|href|http://|https://|ftp://"/>
+        </module>
+        <module name="MethodLength"/>
+        <module name="MethodParamPad"/>
+        <module name="ParenPad"/>
+        <module name="EmptyStatement"/>
+        <module name="EmptyBlock">
+            <property name="option" value="text"/>
+        </module>
+        <module name="EqualsHashCode"/>
+        <module name="IllegalInstantiation"/>
+        <!--<module name="InnerAssignment"/>-->
+        <module name="MissingSwitchDefault"/>
+        <!--<module name="FinalClass"/>-->
+        <!--<module name="HideUtilityClassConstructor"/>-->
+        <!--<module name="InterfaceIsType"/>-->
+        <!--<module name="VisibilityModifier"/>-->
+        <module name="ArrayTypeStyle"/>
+        <module name="UpperEll"/>
+        <!--<module name="NoFinalizer"/>-->
+        <!--<module name="MissingDeprecated"/>-->
+        <module name="WhitespaceAfter">
+            <property name="tokens" value="COMMA"/>
+        </module>
+        <module name="SuppressWarningsHolder" />
+    </module>
+</module>

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-common/src/main/java/org/apache/kylin/common/KylinConfig.java
----------------------------------------------------------------------
diff --git a/core-common/src/main/java/org/apache/kylin/common/KylinConfig.java b/core-common/src/main/java/org/apache/kylin/common/KylinConfig.java
index 8719541..283f505 100644
--- a/core-common/src/main/java/org/apache/kylin/common/KylinConfig.java
+++ b/core-common/src/main/java/org/apache/kylin/common/KylinConfig.java
@@ -371,22 +371,22 @@ public class KylinConfig extends KylinConfigBase {
     }
 
     private static void dumpStackTrace() {
-        
+
         //uncomment below to start debugging
-        
-//        Thread t = Thread.currentThread();
-//        int maxStackTraceDepth = 20;
-//        int current = 0;
-//
-//        StackTraceElement[] stackTrace = t.getStackTrace();
-//        StringBuilder buf = new StringBuilder("This is not a exception, just for diagnose purpose:");
-//        buf.append("\n");
-//        for (StackTraceElement e : stackTrace) {
-//            if (++current > maxStackTraceDepth) {
-//                break;
-//            }
-//            buf.append("\t").append("at ").append(e.toString()).append("\n");
-//        }
-//        logger.info(buf.toString());
+
+        //        Thread t = Thread.currentThread();
+        //        int maxStackTraceDepth = 20;
+        //        int current = 0;
+        //
+        //        StackTraceElement[] stackTrace = t.getStackTrace();
+        //        StringBuilder buf = new StringBuilder("This is not a exception, just for diagnose purpose:");
+        //        buf.append("\n");
+        //        for (StackTraceElement e : stackTrace) {
+        //            if (++current > maxStackTraceDepth) {
+        //                break;
+        //            }
+        //            buf.append("\t").append("at ").append(e.toString()).append("\n");
+        //        }
+        //        logger.info(buf.toString());
     }
 }

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-common/src/main/java/org/apache/kylin/common/persistence/FileResourceStore.java
----------------------------------------------------------------------
diff --git a/core-common/src/main/java/org/apache/kylin/common/persistence/FileResourceStore.java b/core-common/src/main/java/org/apache/kylin/common/persistence/FileResourceStore.java
index c1c62fb..dcd3f38 100644
--- a/core-common/src/main/java/org/apache/kylin/common/persistence/FileResourceStore.java
+++ b/core-common/src/main/java/org/apache/kylin/common/persistence/FileResourceStore.java
@@ -74,7 +74,7 @@ public class FileResourceStore extends ResourceStore {
         NavigableSet<String> resources = listResources(folderPath);
         if (resources == null)
             return Collections.emptyList();
-        
+
         List<RawResource> result = Lists.newArrayListWithCapacity(resources.size());
         try {
             for (String res : resources) {

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-common/src/main/java/org/apache/kylin/common/persistence/JsonSerializer.java
----------------------------------------------------------------------
diff --git a/core-common/src/main/java/org/apache/kylin/common/persistence/JsonSerializer.java b/core-common/src/main/java/org/apache/kylin/common/persistence/JsonSerializer.java
index d2a684e..2e7768a 100644
--- a/core-common/src/main/java/org/apache/kylin/common/persistence/JsonSerializer.java
+++ b/core-common/src/main/java/org/apache/kylin/common/persistence/JsonSerializer.java
@@ -25,7 +25,7 @@ import java.io.IOException;
 import org.apache.kylin.common.util.JsonUtil;
 
 /**
- * @author yangli9
+ * @author yangli9  
  */
 public class JsonSerializer<T extends RootPersistentEntity> implements Serializer<T> {
 

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-common/src/main/java/org/apache/kylin/common/persistence/RootPersistentEntity.java
----------------------------------------------------------------------
diff --git a/core-common/src/main/java/org/apache/kylin/common/persistence/RootPersistentEntity.java b/core-common/src/main/java/org/apache/kylin/common/persistence/RootPersistentEntity.java
index 716f5b2..06e481d 100644
--- a/core-common/src/main/java/org/apache/kylin/common/persistence/RootPersistentEntity.java
+++ b/core-common/src/main/java/org/apache/kylin/common/persistence/RootPersistentEntity.java
@@ -20,9 +20,7 @@ package org.apache.kylin.common.persistence;
 
 import java.io.Serializable;
 import java.text.DateFormat;
-import java.text.ParseException;
 import java.text.SimpleDateFormat;
-import java.util.Date;
 import java.util.UUID;
 
 import org.apache.commons.lang.time.FastDateFormat;
@@ -53,17 +51,6 @@ abstract public class RootPersistentEntity implements AclEntity, Serializable {
         return format.format(millis);
     }
 
-    public static long parseTime(String timeString) {
-        if (timeString == null)
-            return 0;
-        try {
-            Date dt = df.parse(timeString);
-            return dt.getTime();
-        } catch (ParseException e) {
-        }
-        return 0l;
-    }
-
     // ============================================================================
 
     @JsonProperty("uuid")

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-common/src/main/java/org/apache/kylin/common/restclient/AbstractRestCache.java
----------------------------------------------------------------------
diff --git a/core-common/src/main/java/org/apache/kylin/common/restclient/AbstractRestCache.java b/core-common/src/main/java/org/apache/kylin/common/restclient/AbstractRestCache.java
index fc030b4..584131d 100644
--- a/core-common/src/main/java/org/apache/kylin/common/restclient/AbstractRestCache.java
+++ b/core-common/src/main/java/org/apache/kylin/common/restclient/AbstractRestCache.java
@@ -33,7 +33,7 @@ public abstract class AbstractRestCache<K, V> {
         this.config = config;
         this.syncType = syncType;
     }
-    
+
     public Broadcaster getBroadcaster() {
         return Broadcaster.getInstance(config);
     }

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-common/src/main/java/org/apache/kylin/common/restclient/Broadcaster.java
----------------------------------------------------------------------
diff --git a/core-common/src/main/java/org/apache/kylin/common/restclient/Broadcaster.java b/core-common/src/main/java/org/apache/kylin/common/restclient/Broadcaster.java
index b87cc25..0176ad7 100644
--- a/core-common/src/main/java/org/apache/kylin/common/restclient/Broadcaster.java
+++ b/core-common/src/main/java/org/apache/kylin/common/restclient/Broadcaster.java
@@ -143,7 +143,7 @@ public class Broadcaster {
     }
 
     public enum EVENT {
-        
+
         CREATE("create"), UPDATE("update"), DROP("drop");
         private String text;
 

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-common/src/main/java/org/apache/kylin/common/restclient/SingleValueCache.java
----------------------------------------------------------------------
diff --git a/core-common/src/main/java/org/apache/kylin/common/restclient/SingleValueCache.java b/core-common/src/main/java/org/apache/kylin/common/restclient/SingleValueCache.java
index 3631662..5d1ca9a 100644
--- a/core-common/src/main/java/org/apache/kylin/common/restclient/SingleValueCache.java
+++ b/core-common/src/main/java/org/apache/kylin/common/restclient/SingleValueCache.java
@@ -45,7 +45,7 @@ public abstract class SingleValueCache<K, V> extends AbstractRestCache<K, V> {
 
     public void put(K key, V value) {
         boolean exists = innerCache.containsKey(key);
-        
+
         innerCache.put(key, value);
 
         if (!exists) {
@@ -61,9 +61,9 @@ public abstract class SingleValueCache<K, V> extends AbstractRestCache<K, V> {
 
     public void remove(K key) {
         boolean exists = innerCache.containsKey(key);
-        
+
         innerCache.remove(key);
-        
+
         if (exists) {
             getBroadcaster().queue(syncType.getType(), Broadcaster.EVENT.DROP.getType(), key.toString());
         }

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-common/src/main/java/org/apache/kylin/common/util/BytesSplitter.java
----------------------------------------------------------------------
diff --git a/core-common/src/main/java/org/apache/kylin/common/util/BytesSplitter.java b/core-common/src/main/java/org/apache/kylin/common/util/BytesSplitter.java
index fc547c6..33d1d05 100644
--- a/core-common/src/main/java/org/apache/kylin/common/util/BytesSplitter.java
+++ b/core-common/src/main/java/org/apache/kylin/common/util/BytesSplitter.java
@@ -18,7 +18,6 @@
 
 package org.apache.kylin.common.util;
 
-import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -62,11 +61,11 @@ public class BytesSplitter {
         for (int i = 0; i < byteLen; i++) {
             if (bytes[i] == delimiter) {
                 SplittedBytes split = this.splitBuffers[this.bufferSize++];
-                if(length > split.value.length) {
-                    length = split.value.length;
-                }
+                if (length > split.value.length) {
+                    length = split.value.length;
+                }
                 System.arraycopy(bytes, offset, split.value, 0, length);
-                split.length = length;
+                split.length = length;
                 offset = i + 1;
                 length = 0;
             } else {
@@ -74,9 +73,9 @@ public class BytesSplitter {
             }
         }
         SplittedBytes split = this.splitBuffers[this.bufferSize++];
-        if(length > split.value.length) {
-            length = split.value.length;
-        }
+        if (length > split.value.length) {
+            length = split.value.length;
+        }
         System.arraycopy(bytes, offset, split.value, 0, length);
         split.length = length;
 

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-common/src/main/java/org/apache/kylin/common/util/BytesUtil.java
----------------------------------------------------------------------
diff --git a/core-common/src/main/java/org/apache/kylin/common/util/BytesUtil.java b/core-common/src/main/java/org/apache/kylin/common/util/BytesUtil.java
index 39cd6f2..bda5c73 100644
--- a/core-common/src/main/java/org/apache/kylin/common/util/BytesUtil.java
+++ b/core-common/src/main/java/org/apache/kylin/common/util/BytesUtil.java
@@ -132,7 +132,6 @@ public class BytesUtil {
     // from WritableUtils
     // ============================================================================
 
-
     public static void writeVInt(int i, ByteBuffer out) {
 
         writeVLong(i, out);
@@ -261,7 +260,6 @@ public class BytesUtil {
         int len = str.length();
         BytesUtil.writeVInt(len, out);
 
-
         for (int i = 0; i < len; i++) {
             out.put((byte) str.charAt(i));
         }
@@ -353,7 +351,7 @@ public class BytesUtil {
         in.get(array);
         return array;
     }
-    
+
     public static int peekByteArrayLength(ByteBuffer in) {
         int start = in.position();
         int arrayLen = readVInt(in);

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-common/src/main/java/org/apache/kylin/common/util/Dictionary.java
----------------------------------------------------------------------
diff --git a/core-common/src/main/java/org/apache/kylin/common/util/Dictionary.java b/core-common/src/main/java/org/apache/kylin/common/util/Dictionary.java
index f561cf8..62386af 100644
--- a/core-common/src/main/java/org/apache/kylin/common/util/Dictionary.java
+++ b/core-common/src/main/java/org/apache/kylin/common/util/Dictionary.java
@@ -18,8 +18,6 @@
 
 package org.apache.kylin.common.util;
 
-import org.apache.kylin.common.KylinConfig;
-
 import java.io.DataInput;
 import java.io.DataOutput;
 import java.io.IOException;
@@ -27,6 +25,8 @@ import java.io.PrintStream;
 import java.io.Serializable;
 import java.io.UnsupportedEncodingException;
 
+import org.apache.kylin.common.KylinConfig;
+
 /**
  * A bi-way dictionary that maps from dimension/column values to IDs and vice
  * versa. By storing IDs instead of real values, the size of cube is
@@ -46,7 +46,7 @@ import java.io.UnsupportedEncodingException;
 abstract public class Dictionary<T> implements Serializable {
 
     // ID with all bit-1 (0xff e.g.) reserved for NULL value
-    public static final int NULL_ID[] = new int[] { 0, 0xff, 0xffff, 0xffffff, 0xffffffff };
+    public static final int[] NULL_ID = new int[] { 0, 0xff, 0xffff, 0xffffff, 0xffffffff };
 
     abstract public int getMinId();
 

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-common/src/main/java/org/apache/kylin/common/util/ImmutableBitSet.java
----------------------------------------------------------------------
diff --git a/core-common/src/main/java/org/apache/kylin/common/util/ImmutableBitSet.java b/core-common/src/main/java/org/apache/kylin/common/util/ImmutableBitSet.java
index 58fb58f..b417877 100644
--- a/core-common/src/main/java/org/apache/kylin/common/util/ImmutableBitSet.java
+++ b/core-common/src/main/java/org/apache/kylin/common/util/ImmutableBitSet.java
@@ -23,7 +23,7 @@ import java.util.BitSet;
 public class ImmutableBitSet {
 
     public static final ImmutableBitSet EMPTY = new ImmutableBitSet(new BitSet());
-    
+
     public static ImmutableBitSet valueOf(int... values) {
         BitSet set = new BitSet();
         for (int i : values)

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-common/src/main/java/org/apache/kylin/common/util/ImplementationSwitch.java
----------------------------------------------------------------------
diff --git a/core-common/src/main/java/org/apache/kylin/common/util/ImplementationSwitch.java b/core-common/src/main/java/org/apache/kylin/common/util/ImplementationSwitch.java
index 873393c..f14ac98 100644
--- a/core-common/src/main/java/org/apache/kylin/common/util/ImplementationSwitch.java
+++ b/core-common/src/main/java/org/apache/kylin/common/util/ImplementationSwitch.java
@@ -19,10 +19,11 @@ package org.apache.kylin.common.util;
 
 import java.util.Map;
 
-import com.google.common.collect.Maps;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import com.google.common.collect.Maps;
+
 /**
  * Provide switch between different implementations of a same interface.
  * Each implementation is identified by an integer ID.
@@ -65,7 +66,7 @@ public class ImplementationSwitch<I> {
 
         if (result == null) {
             try {
-                result = (I)ClassUtil.newInstance(clzName);
+                result = (I) ClassUtil.newInstance(clzName);
                 instances[id] = result;
             } catch (Exception ex) {
                 logger.warn("Implementation missing " + clzName + " - " + ex);

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-common/src/main/java/org/apache/kylin/common/util/LoggableCachedThreadPool.java
----------------------------------------------------------------------
diff --git a/core-common/src/main/java/org/apache/kylin/common/util/LoggableCachedThreadPool.java b/core-common/src/main/java/org/apache/kylin/common/util/LoggableCachedThreadPool.java
index 455951b..e37c6f2 100644
--- a/core-common/src/main/java/org/apache/kylin/common/util/LoggableCachedThreadPool.java
+++ b/core-common/src/main/java/org/apache/kylin/common/util/LoggableCachedThreadPool.java
@@ -18,14 +18,14 @@
 
 package org.apache.kylin.common.util;
 
-import org.slf4j.*;
-
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.Future;
 import java.util.concurrent.SynchronousQueue;
 import java.util.concurrent.ThreadPoolExecutor;
 import java.util.concurrent.TimeUnit;
 
+import org.slf4j.LoggerFactory;
+
 public class LoggableCachedThreadPool extends ThreadPoolExecutor {
 
     public static final org.slf4j.Logger logger = LoggerFactory.getLogger(LoggableCachedThreadPool.class);

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-common/src/main/java/org/apache/kylin/common/util/MemoryBudgetController.java
----------------------------------------------------------------------
diff --git a/core-common/src/main/java/org/apache/kylin/common/util/MemoryBudgetController.java b/core-common/src/main/java/org/apache/kylin/common/util/MemoryBudgetController.java
index 20c1c25..5e81941 100644
--- a/core-common/src/main/java/org/apache/kylin/common/util/MemoryBudgetController.java
+++ b/core-common/src/main/java/org/apache/kylin/common/util/MemoryBudgetController.java
@@ -99,7 +99,7 @@ public class MemoryBudgetController {
     public void reserveInsist(MemoryConsumer consumer, int requestMB) {
         if (requestMB > totalBudgetMB)
             throw new NotEnoughBudgetException();
-        
+
         long waitStart = 0;
         while (true) {
             try {
@@ -274,7 +274,6 @@ public class MemoryBudgetController {
         return (int) (getSystemAvailBytes() / ONE_MB);
     }
 
-
     // protective estimate of memory usage, prefer overestimate rather than underestimate
     public static class MemoryWaterLevel {
         int lowAvail = Integer.MAX_VALUE;

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-common/src/main/java/org/apache/kylin/common/util/MyLogFormatter.java
----------------------------------------------------------------------
diff --git a/core-common/src/main/java/org/apache/kylin/common/util/MyLogFormatter.java b/core-common/src/main/java/org/apache/kylin/common/util/MyLogFormatter.java
index 21cb41d..80f0c9f 100644
--- a/core-common/src/main/java/org/apache/kylin/common/util/MyLogFormatter.java
+++ b/core-common/src/main/java/org/apache/kylin/common/util/MyLogFormatter.java
@@ -71,6 +71,7 @@ public class MyLogFormatter extends Formatter {
                 pw.close();
                 sb.append(sw.toString());
             } catch (Exception ex) {
+                //do nothing?
             }
         }
         return sb.toString();

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-common/src/main/java/org/apache/kylin/common/util/Primes.java
----------------------------------------------------------------------
diff --git a/core-common/src/main/java/org/apache/kylin/common/util/Primes.java b/core-common/src/main/java/org/apache/kylin/common/util/Primes.java
index 9509802..b83950e 100644
--- a/core-common/src/main/java/org/apache/kylin/common/util/Primes.java
+++ b/core-common/src/main/java/org/apache/kylin/common/util/Primes.java
@@ -31,33 +31,9 @@ public class Primes {
      * As a result, <code>int</code> numbers which are not reduced by those primes are guaranteed
      * to be either prime or semi prime.
      */
-    public static final int[] PRIMES = {2,
-            3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73,
-            79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179,
-            181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283,
-            293, 307, 311, 313, 317, 331, 337, 347, 349, 353, 359, 367, 373, 379, 383, 389, 397, 401, 409, 419,
-            421, 431, 433, 439, 443, 449, 457, 461, 463, 467, 479, 487, 491, 499, 503, 509, 521, 523, 541, 547,
-            557, 563, 569, 571, 577, 587, 593, 599, 601, 607, 613, 617, 619, 631, 641, 643, 647, 653, 659, 661,
-            673, 677, 683, 691, 701, 709, 719, 727, 733, 739, 743, 751, 757, 761, 769, 773, 787, 797, 809, 811,
-            821, 823, 827, 829, 839, 853, 857, 859, 863, 877, 881, 883, 887, 907, 911, 919, 929, 937, 941, 947,
-            953, 967, 971, 977, 983, 991, 997, 1009, 1013, 1019, 1021, 1031, 1033, 1039, 1049, 1051, 1061, 1063, 1069, 1087,
-            1091, 1093, 1097, 1103, 1109, 1117, 1123, 1129, 1151, 1153, 1163, 1171, 1181, 1187, 1193, 1201, 1213, 1217, 1223, 1229,
-            1231, 1237, 1249, 1259, 1277, 1279, 1283, 1289, 1291, 1297, 1301, 1303, 1307, 1319, 1321, 1327, 1361, 1367, 1373, 1381,
-            1399, 1409, 1423, 1427, 1429, 1433, 1439, 1447, 1451, 1453, 1459, 1471, 1481, 1483, 1487, 1489, 1493, 1499, 1511, 1523,
-            1531, 1543, 1549, 1553, 1559, 1567, 1571, 1579, 1583, 1597, 1601, 1607, 1609, 1613, 1619, 1621, 1627, 1637, 1657, 1663,
-            1667, 1669, 1693, 1697, 1699, 1709, 1721, 1723, 1733, 1741, 1747, 1753, 1759, 1777, 1783, 1787, 1789, 1801, 1811, 1823,
-            1831, 1847, 1861, 1867, 1871, 1873, 1877, 1879, 1889, 1901, 1907, 1913, 1931, 1933, 1949, 1951, 1973, 1979, 1987, 1993,
-            1997, 1999, 2003, 2011, 2017, 2027, 2029, 2039, 2053, 2063, 2069, 2081, 2083, 2087, 2089, 2099, 2111, 2113, 2129, 2131,
-            2137, 2141, 2143, 2153, 2161, 2179, 2203, 2207, 2213, 2221, 2237, 2239, 2243, 2251, 2267, 2269, 2273, 2281, 2287, 2293,
-            2297, 2309, 2311, 2333, 2339, 2341, 2347, 2351, 2357, 2371, 2377, 2381, 2383, 2389, 2393, 2399, 2411, 2417, 2423, 2437,
-            2441, 2447, 2459, 2467, 2473, 2477, 2503, 2521, 2531, 2539, 2543, 2549, 2551, 2557, 2579, 2591, 2593, 2609, 2617, 2621,
-            2633, 2647, 2657, 2659, 2663, 2671, 2677, 2683, 2687, 2689, 2693, 2699, 2707, 2711, 2713, 2719, 2729, 2731, 2741, 2749,
-            2753, 2767, 2777, 2789, 2791, 2797, 2801, 2803, 2819, 2833, 2837, 2843, 2851, 2857, 2861, 2879, 2887, 2897, 2903, 2909,
-            2917, 2927, 2939, 2953, 2957, 2963, 2969, 2971, 2999, 3001, 3011, 3019, 3023, 3037, 3041, 3049, 3061, 3067, 3079, 3083,
-            3089, 3109, 3119, 3121, 3137, 3163, 3167, 3169, 3181, 3187, 3191, 3203, 3209, 3217, 3221, 3229, 3251, 3253, 3257, 3259,
-            3271, 3299, 3301, 3307, 3313, 3319, 3323, 3329, 3331, 3343, 3347, 3359, 3361, 3371, 3373, 3389, 3391, 3407, 3413, 3433,
-            3449, 3457, 3461, 3463, 3467, 3469, 3491, 3499, 3511, 3517, 3527, 3529, 3533, 3539, 3541, 3547, 3557, 3559, 3571, 3581,
-            3583, 3593, 3607, 3613, 3617, 3623, 3631, 3637, 3643, 3659, 3671};
+    public static final int[] PRIMES = { 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293, 307, 311, 313, 317, 331, 337, 347, 349, 353, 359, 367, 373, 379, 383, 389, 397, 401, 409, 419, 421, 431, 433, 439, 443, 449, 457, 461, 463, 467, 479, 487, 491, 499, 503, 509, 521, 523, 541, 547, 557, 563, 569, 571, 577, 587, 593, 599, 601, 607, 613, 617, 619, 631, 641, 643, 647, 653, 659, 661, 673, 677, 683, 691, 701, 709, 719, 727, 733, 739, 743, 751, 757, 761, 769, 773, 787, 797, 809, 811, 821, 823, 827, 829, 839, 853, 857, 859, 863, 877, 881, 883, 887, 907, 911, 919, 929, 937, 941, 947, 953, 967, 971, 977, 983, 991, 997, 1009, 1013, 1019, 1021, 1031, 1033, 1039, 1049, 1051, 1061, 1063, 1069, 1087, 1091, 1093, 1097, 1103, 1109, 1117, 1123, 1129, 1151, 1153, 1163,
+            1171, 1181, 1187, 1193, 1201, 1213, 1217, 1223, 1229, 1231, 1237, 1249, 1259, 1277, 1279, 1283, 1289, 1291, 1297, 1301, 1303, 1307, 1319, 1321, 1327, 1361, 1367, 1373, 1381, 1399, 1409, 1423, 1427, 1429, 1433, 1439, 1447, 1451, 1453, 1459, 1471, 1481, 1483, 1487, 1489, 1493, 1499, 1511, 1523, 1531, 1543, 1549, 1553, 1559, 1567, 1571, 1579, 1583, 1597, 1601, 1607, 1609, 1613, 1619, 1621, 1627, 1637, 1657, 1663, 1667, 1669, 1693, 1697, 1699, 1709, 1721, 1723, 1733, 1741, 1747, 1753, 1759, 1777, 1783, 1787, 1789, 1801, 1811, 1823, 1831, 1847, 1861, 1867, 1871, 1873, 1877, 1879, 1889, 1901, 1907, 1913, 1931, 1933, 1949, 1951, 1973, 1979, 1987, 1993, 1997, 1999, 2003, 2011, 2017, 2027, 2029, 2039, 2053, 2063, 2069, 2081, 2083, 2087, 2089, 2099, 2111, 2113, 2129, 2131, 2137, 2141, 2143, 2153, 2161, 2179, 2203, 2207, 2213, 2221, 2237, 2239, 2243, 2251, 2267, 2269, 2273, 2281, 2287, 2293, 2297, 2309, 2311, 2333, 2339, 2341, 2347, 2351, 2357, 2371, 2377, 2381, 2383, 2389, 2393,
+            2399, 2411, 2417, 2423, 2437, 2441, 2447, 2459, 2467, 2473, 2477, 2503, 2521, 2531, 2539, 2543, 2549, 2551, 2557, 2579, 2591, 2593, 2609, 2617, 2621, 2633, 2647, 2657, 2659, 2663, 2671, 2677, 2683, 2687, 2689, 2693, 2699, 2707, 2711, 2713, 2719, 2729, 2731, 2741, 2749, 2753, 2767, 2777, 2789, 2791, 2797, 2801, 2803, 2819, 2833, 2837, 2843, 2851, 2857, 2861, 2879, 2887, 2897, 2903, 2909, 2917, 2927, 2939, 2953, 2957, 2963, 2969, 2971, 2999, 3001, 3011, 3019, 3023, 3037, 3041, 3049, 3061, 3067, 3079, 3083, 3089, 3109, 3119, 3121, 3137, 3163, 3167, 3169, 3181, 3187, 3191, 3203, 3209, 3217, 3221, 3229, 3251, 3253, 3257, 3259, 3271, 3299, 3301, 3307, 3313, 3319, 3323, 3329, 3331, 3343, 3347, 3359, 3361, 3371, 3373, 3389, 3391, 3407, 3413, 3433, 3449, 3457, 3461, 3463, 3467, 3469, 3491, 3499, 3511, 3517, 3527, 3529, 3533, 3539, 3541, 3547, 3557, 3559, 3571, 3581, 3583, 3593, 3607, 3613, 3617, 3623, 3631, 3637, 3643, 3659, 3671 };
 
     /**
      * Hide utility class.
@@ -181,4 +157,3 @@ public class Primes {
         return true; // definitely prime
     }
 }
-

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-common/src/main/java/org/apache/kylin/common/util/RangeUtil.java
----------------------------------------------------------------------
diff --git a/core-common/src/main/java/org/apache/kylin/common/util/RangeUtil.java b/core-common/src/main/java/org/apache/kylin/common/util/RangeUtil.java
index ae6cf51..1cd6282 100644
--- a/core-common/src/main/java/org/apache/kylin/common/util/RangeUtil.java
+++ b/core-common/src/main/java/org/apache/kylin/common/util/RangeUtil.java
@@ -19,12 +19,10 @@
 package org.apache.kylin.common.util;
 
 import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.Collections;
 import java.util.Iterator;
 import java.util.List;
 import java.util.NavigableMap;
-import java.util.Set;
 import java.util.SortedSet;
 
 import com.google.common.collect.BoundType;
@@ -52,7 +50,7 @@ public class RangeUtil {
         } else if (filterRange.hasLowerBound() && !filterRange.hasUpperBound()) {
             return values.tailMap(filterRange.lowerEndpoint(), lowerBoundInclusive(filterRange));
         } else {
-            return values.subMap(filterRange.lowerEndpoint(), lowerBoundInclusive(filterRange),//
+            return values.subMap(filterRange.lowerEndpoint(), lowerBoundInclusive(filterRange), //
                     filterRange.upperEndpoint(), upperBoundInclusive(filterRange));
         }
     }
@@ -96,7 +94,7 @@ public class RangeUtil {
         if (other == null || !self.isConnected(other)) {
             return Collections.singletonList(self);
         }
-        
+
         Range<C> share = self.intersection(other);
         if (share.isEmpty()) {
             return Collections.singletonList(self);

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-common/src/main/java/org/apache/kylin/common/util/SSHClient.java
----------------------------------------------------------------------
diff --git a/core-common/src/main/java/org/apache/kylin/common/util/SSHClient.java b/core-common/src/main/java/org/apache/kylin/common/util/SSHClient.java
index 55a1f96..9c83fbd 100644
--- a/core-common/src/main/java/org/apache/kylin/common/util/SSHClient.java
+++ b/core-common/src/main/java/org/apache/kylin/common/util/SSHClient.java
@@ -30,6 +30,7 @@ import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
 
+import org.apache.commons.io.IOUtils;
 import org.slf4j.LoggerFactory;
 
 import com.jcraft.jsch.Channel;
@@ -141,11 +142,7 @@ public class SSHClient {
         } catch (Exception e) {
             throw e;
         } finally {
-            try {
-                if (fis != null)
-                    fis.close();
-            } catch (Exception ee) {
-            }
+            IOUtils.closeQuietly(fis);
         }
     }
 
@@ -252,11 +249,7 @@ public class SSHClient {
         } catch (Exception e) {
             throw e;
         } finally {
-            try {
-                if (fos != null)
-                    fos.close();
-            } catch (Exception ee) {
-            }
+            IOUtils.closeQuietly(fos);
         }
     }
 

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-common/src/main/java/org/apache/kylin/common/util/StringUtil.java
----------------------------------------------------------------------
diff --git a/core-common/src/main/java/org/apache/kylin/common/util/StringUtil.java b/core-common/src/main/java/org/apache/kylin/common/util/StringUtil.java
index 43a469f..15872aa 100644
--- a/core-common/src/main/java/org/apache/kylin/common/util/StringUtil.java
+++ b/core-common/src/main/java/org/apache/kylin/common/util/StringUtil.java
@@ -27,7 +27,7 @@ import org.apache.commons.lang.StringUtils;
  */
 public class StringUtil {
 
-    public static String[] filterSystemArgs(String args[]) {
+    public static String[] filterSystemArgs(String[] args) {
         ArrayList<String> whatsLeft = new ArrayList<String>();
         for (String a : args) {
             if (a.startsWith("-D")) {
@@ -72,7 +72,7 @@ public class StringUtil {
     public static String noBlank(String str, String dft) {
         return StringUtils.isBlank(str) ? dft : str;
     }
-    
+
     public static String dropSuffix(String str, String suffix) {
         if (str.endsWith(suffix))
             return str.substring(0, str.length() - suffix.length());

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-common/src/test/java/org/apache/kylin/common/KylinConfigTest.java
----------------------------------------------------------------------
diff --git a/core-common/src/test/java/org/apache/kylin/common/KylinConfigTest.java b/core-common/src/test/java/org/apache/kylin/common/KylinConfigTest.java
index 9ce1425..097fe11 100644
--- a/core-common/src/test/java/org/apache/kylin/common/KylinConfigTest.java
+++ b/core-common/src/test/java/org/apache/kylin/common/KylinConfigTest.java
@@ -18,11 +18,10 @@
 
 package org.apache.kylin.common;
 
-import static org.junit.Assert.*;
+import static org.junit.Assert.assertEquals;
 
 import java.util.Map;
 
-import org.apache.kylin.common.KylinConfig;
 import org.apache.kylin.common.util.LocalFileMetadataTestCase;
 import org.junit.After;
 import org.junit.Before;

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-common/src/test/java/org/apache/kylin/common/persistence/ResourceStoreTest.java
----------------------------------------------------------------------
diff --git a/core-common/src/test/java/org/apache/kylin/common/persistence/ResourceStoreTest.java b/core-common/src/test/java/org/apache/kylin/common/persistence/ResourceStoreTest.java
index 69fc6d8..4c31a15 100644
--- a/core-common/src/test/java/org/apache/kylin/common/persistence/ResourceStoreTest.java
+++ b/core-common/src/test/java/org/apache/kylin/common/persistence/ResourceStoreTest.java
@@ -18,7 +18,10 @@
 
 package org.apache.kylin.common.persistence;
 
-import static org.junit.Assert.*;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
 
 import java.io.DataInputStream;
 import java.io.DataOutputStream;
@@ -32,7 +35,7 @@ import org.apache.commons.lang.StringUtils;
  * Be called by LocalFileResourceStoreTest and ITHBaseResourceStoreTest.
  */
 public class ResourceStoreTest {
-    
+
     public static void testAStore(ResourceStore store) throws IOException {
         testBasics(store);
         testGetAllResources(store);
@@ -41,25 +44,25 @@ public class ResourceStoreTest {
     private static void testGetAllResources(ResourceStore store) throws IOException {
         final String folder = "/testFolder";
         List<StringEntity> result;
-        
+
         // reset any leftover garbage
         ResourceTool.resetR(store, folder);
-        
+
         store.putResource(folder + "/res1", new StringEntity("data1"), 1000, StringEntity.serializer);
         store.putResource(folder + "/res2", new StringEntity("data2"), 2000, StringEntity.serializer);
         store.putResource(folder + "/sub/res3", new StringEntity("data3"), 3000, StringEntity.serializer);
         store.putResource(folder + "/res4", new StringEntity("data4"), 4000, StringEntity.serializer);
-        
+
         result = store.getAllResources(folder, StringEntity.class, StringEntity.serializer);
         assertEntity(result.get(0), "data1", 1000);
         assertEntity(result.get(1), "data2", 2000);
         assertEntity(result.get(2), "data4", 4000);
         assertEquals(3, result.size());
-        
+
         result = store.getAllResources(folder, 2000, 4000, StringEntity.class, StringEntity.serializer);
         assertEntity(result.get(0), "data2", 2000);
         assertEquals(1, result.size());
-        
+
         ResourceTool.resetR(store, folder);
     }
 
@@ -185,5 +188,4 @@ public class ResourceStoreTest {
         }
     }
 
-
 }

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-common/src/test/java/org/apache/kylin/common/util/AbstractKylinTestCase.java
----------------------------------------------------------------------
diff --git a/core-common/src/test/java/org/apache/kylin/common/util/AbstractKylinTestCase.java b/core-common/src/test/java/org/apache/kylin/common/util/AbstractKylinTestCase.java
index 8081444..684d828 100644
--- a/core-common/src/test/java/org/apache/kylin/common/util/AbstractKylinTestCase.java
+++ b/core-common/src/test/java/org/apache/kylin/common/util/AbstractKylinTestCase.java
@@ -28,7 +28,6 @@ import org.apache.kylin.common.KylinConfig;
  */
 public abstract class AbstractKylinTestCase {
 
-
     public static final String[] SERVICES_WITH_CACHE = { //
             "org.apache.kylin.cube.CubeManager", //
             "org.apache.kylin.cube.CubeDescManager", //

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-common/src/test/java/org/apache/kylin/common/util/DateFormatTest.java
----------------------------------------------------------------------
diff --git a/core-common/src/test/java/org/apache/kylin/common/util/DateFormatTest.java b/core-common/src/test/java/org/apache/kylin/common/util/DateFormatTest.java
index 52888a3..d70ffcc 100644
--- a/core-common/src/test/java/org/apache/kylin/common/util/DateFormatTest.java
+++ b/core-common/src/test/java/org/apache/kylin/common/util/DateFormatTest.java
@@ -18,12 +18,11 @@
 
 package org.apache.kylin.common.util;
 
-import org.junit.Test;
-
-import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertTrue;
 
+import org.junit.Test;
+
 /**
  * Created by dongli on 1/4/16.
  */

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-common/src/test/java/org/apache/kylin/common/util/HBaseMetadataTestCase.java
----------------------------------------------------------------------
diff --git a/core-common/src/test/java/org/apache/kylin/common/util/HBaseMetadataTestCase.java b/core-common/src/test/java/org/apache/kylin/common/util/HBaseMetadataTestCase.java
index 1f4e9d1..7255226 100644
--- a/core-common/src/test/java/org/apache/kylin/common/util/HBaseMetadataTestCase.java
+++ b/core-common/src/test/java/org/apache/kylin/common/util/HBaseMetadataTestCase.java
@@ -19,6 +19,7 @@
 package org.apache.kylin.common.util;
 
 import java.io.File;
+
 import org.apache.kylin.common.KylinConfig;
 
 /**
@@ -27,7 +28,7 @@ import org.apache.kylin.common.KylinConfig;
 public class HBaseMetadataTestCase extends AbstractKylinTestCase {
 
     public static String SANDBOX_TEST_DATA = "../examples/test_case_data/sandbox";
-    
+
     static {
         try {
             ClassUtil.addClasspath(new File(SANDBOX_TEST_DATA).getAbsolutePath());

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-common/src/test/java/org/apache/kylin/common/util/RangeUtilTest.java
----------------------------------------------------------------------
diff --git a/core-common/src/test/java/org/apache/kylin/common/util/RangeUtilTest.java b/core-common/src/test/java/org/apache/kylin/common/util/RangeUtilTest.java
index 11bf4ad..0a5df77 100644
--- a/core-common/src/test/java/org/apache/kylin/common/util/RangeUtilTest.java
+++ b/core-common/src/test/java/org/apache/kylin/common/util/RangeUtilTest.java
@@ -21,7 +21,6 @@ package org.apache.kylin.common.util;
 import java.util.List;
 import java.util.Map;
 import java.util.NavigableMap;
-import java.util.Set;
 import java.util.TreeMap;
 import java.util.TreeSet;
 

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-cube/src/main/java/org/apache/kylin/cube/CubeInstance.java
----------------------------------------------------------------------
diff --git a/core-cube/src/main/java/org/apache/kylin/cube/CubeInstance.java b/core-cube/src/main/java/org/apache/kylin/cube/CubeInstance.java
index 24e398f..22633c1 100644
--- a/core-cube/src/main/java/org/apache/kylin/cube/CubeInstance.java
+++ b/core-cube/src/main/java/org/apache/kylin/cube/CubeInstance.java
@@ -46,6 +46,7 @@ import com.fasterxml.jackson.annotation.JsonAutoDetect.Visibility;
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonManagedReference;
 import com.fasterxml.jackson.annotation.JsonProperty;
+
 import com.google.common.base.Objects;
 import com.google.common.collect.Lists;
 
@@ -116,7 +117,7 @@ public class CubeInstance extends RootPersistentEntity implements IRealization,
         for (CubeSegment seg : this.segments) {
             if (seg.getStatus() != SegmentStatusEnum.READY && seg.getStatus() != SegmentStatusEnum.READY_PENDING)
                 continue;
-            
+
             if (seg == mergedSegment)
                 continue;
 

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-cube/src/main/java/org/apache/kylin/cube/CubeSegment.java
----------------------------------------------------------------------
diff --git a/core-cube/src/main/java/org/apache/kylin/cube/CubeSegment.java b/core-cube/src/main/java/org/apache/kylin/cube/CubeSegment.java
index b9195fd..8e4e68c 100644
--- a/core-cube/src/main/java/org/apache/kylin/cube/CubeSegment.java
+++ b/core-cube/src/main/java/org/apache/kylin/cube/CubeSegment.java
@@ -19,10 +19,15 @@
 package org.apache.kylin.cube;
 
 import java.text.SimpleDateFormat;
-import java.util.*;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.TimeZone;
 import java.util.concurrent.ConcurrentHashMap;
 
-import com.fasterxml.jackson.annotation.JsonInclude;
 import org.apache.kylin.common.KylinConfig;
 import org.apache.kylin.common.persistence.ResourceStore;
 import org.apache.kylin.common.util.Dictionary;
@@ -40,7 +45,9 @@ import org.apache.kylin.metadata.realization.IRealizationSegment;
 import com.fasterxml.jackson.annotation.JsonAutoDetect;
 import com.fasterxml.jackson.annotation.JsonAutoDetect.Visibility;
 import com.fasterxml.jackson.annotation.JsonBackReference;
+import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
+
 import com.google.common.collect.Lists;
 import com.google.common.collect.Maps;
 
@@ -119,7 +126,7 @@ public class CubeSegment implements Comparable<CubeSegment>, IRealizationSegment
             startOffset = startDate;
             endOffset = endDate;
         }
-        
+
         if (startOffset == 0 && (endOffset == 0 || endOffset == Long.MAX_VALUE)) {
             return "FULL_BUILD";
         }

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-cube/src/main/java/org/apache/kylin/cube/CubeValidator.java
----------------------------------------------------------------------
diff --git a/core-cube/src/main/java/org/apache/kylin/cube/CubeValidator.java b/core-cube/src/main/java/org/apache/kylin/cube/CubeValidator.java
index 758b690..f94752f 100644
--- a/core-cube/src/main/java/org/apache/kylin/cube/CubeValidator.java
+++ b/core-cube/src/main/java/org/apache/kylin/cube/CubeValidator.java
@@ -85,7 +85,7 @@ public class CubeValidator {
                     throw new IllegalStateException("Segments overlap: " + pre + " and " + seg);
             }
             pre = seg;
-            
+
             for (CubeSegment aReady : ready) {
                 if (seg.sourceOffsetOverlaps(aReady) && !seg.sourceOffsetContains(aReady))
                     throw new IllegalStateException("Segments overlap: " + aReady + " and " + seg);

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-cube/src/main/java/org/apache/kylin/cube/cli/CubeSignatureRefresher.java
----------------------------------------------------------------------
diff --git a/core-cube/src/main/java/org/apache/kylin/cube/cli/CubeSignatureRefresher.java b/core-cube/src/main/java/org/apache/kylin/cube/cli/CubeSignatureRefresher.java
index 59c172b..979ac4e 100644
--- a/core-cube/src/main/java/org/apache/kylin/cube/cli/CubeSignatureRefresher.java
+++ b/core-cube/src/main/java/org/apache/kylin/cube/cli/CubeSignatureRefresher.java
@@ -88,7 +88,7 @@ public class CubeSignatureRefresher {
     private void updateCubeDesc(CubeDesc cubeDesc) {
         try {
             String calculatedSign = cubeDesc.calculateSignature();
-            if (cubeDesc.getSignature() == null || (!cubeDesc.getSignature().equals(calculatedSign)) ){
+            if (cubeDesc.getSignature() == null || (!cubeDesc.getSignature().equals(calculatedSign))) {
                 cubeDesc.setSignature(calculatedSign);
                 store.putResource(cubeDesc.getResourcePath(), cubeDesc, CubeDescManager.CUBE_DESC_SERIALIZER);
                 updatedResources.add(cubeDesc.getResourcePath());
@@ -99,7 +99,7 @@ public class CubeSignatureRefresher {
         }
     }
 
-    public static void main(String args[]) {
+    public static void main(String[] args) {
         if (args != null && args.length > 1) {
             System.out.println("Usage: java CubeSignatureRefresher [Cubes]; e.g, cube1,cube2 ");
             return;

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-cube/src/main/java/org/apache/kylin/cube/cli/DictionaryGeneratorCLI.java
----------------------------------------------------------------------
diff --git a/core-cube/src/main/java/org/apache/kylin/cube/cli/DictionaryGeneratorCLI.java b/core-cube/src/main/java/org/apache/kylin/cube/cli/DictionaryGeneratorCLI.java
index c9426ea..3b65d1f 100644
--- a/core-cube/src/main/java/org/apache/kylin/cube/cli/DictionaryGeneratorCLI.java
+++ b/core-cube/src/main/java/org/apache/kylin/cube/cli/DictionaryGeneratorCLI.java
@@ -18,6 +18,8 @@
 
 package org.apache.kylin.cube.cli;
 
+import java.io.IOException;
+
 import org.apache.kylin.common.KylinConfig;
 import org.apache.kylin.cube.CubeInstance;
 import org.apache.kylin.cube.CubeManager;
@@ -29,8 +31,6 @@ import org.apache.kylin.metadata.model.TblColRef;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.io.IOException;
-
 public class DictionaryGeneratorCLI {
 
     private static final Logger logger = LoggerFactory.getLogger(DictionaryGeneratorCLI.class);

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-cube/src/main/java/org/apache/kylin/cube/common/RowKeySplitter.java
----------------------------------------------------------------------
diff --git a/core-cube/src/main/java/org/apache/kylin/cube/common/RowKeySplitter.java b/core-cube/src/main/java/org/apache/kylin/cube/common/RowKeySplitter.java
index dbed30d..67f1751 100644
--- a/core-cube/src/main/java/org/apache/kylin/cube/common/RowKeySplitter.java
+++ b/core-cube/src/main/java/org/apache/kylin/cube/common/RowKeySplitter.java
@@ -61,7 +61,6 @@ public class RowKeySplitter {
         return bufferSize;
     }
 
-
     public RowKeySplitter(CubeSegment cubeSeg, int splitLen, int bytesLen) {
         this.enableSharding = cubeSeg.isEnableSharding();
         this.cubeDesc = cubeSeg.getCubeDesc();

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-cube/src/main/java/org/apache/kylin/cube/cuboid/Cuboid.java
----------------------------------------------------------------------
diff --git a/core-cube/src/main/java/org/apache/kylin/cube/cuboid/Cuboid.java b/core-cube/src/main/java/org/apache/kylin/cube/cuboid/Cuboid.java
index a00fc68..e4e718d 100644
--- a/core-cube/src/main/java/org/apache/kylin/cube/cuboid/Cuboid.java
+++ b/core-cube/src/main/java/org/apache/kylin/cube/cuboid/Cuboid.java
@@ -239,8 +239,7 @@ public class Cuboid implements Comparable<Cuboid> {
     private static boolean checkJoint(AggregationGroup agg, long cuboidID) {
         for (long joint : agg.getJoints()) {
             long common = cuboidID & joint;
-            if (common == 0 || common == joint) {
-            } else {
+            if (!(common == 0 || common == joint)) {
                 return false;
             }
         }
@@ -414,8 +413,6 @@ public class Cuboid implements Comparable<Cuboid> {
         return cuboidToGridTableMapping;
     }
 
-   
-
     public static String getDisplayName(long cuboidID, int dimensionCount) {
         StringBuilder sb = new StringBuilder();
         for (int i = 0; i < dimensionCount; ++i) {

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-cube/src/main/java/org/apache/kylin/cube/gridtable/CubeGridTable.java
----------------------------------------------------------------------
diff --git a/core-cube/src/main/java/org/apache/kylin/cube/gridtable/CubeGridTable.java b/core-cube/src/main/java/org/apache/kylin/cube/gridtable/CubeGridTable.java
index b368806..f2f3a25 100644
--- a/core-cube/src/main/java/org/apache/kylin/cube/gridtable/CubeGridTable.java
+++ b/core-cube/src/main/java/org/apache/kylin/cube/gridtable/CubeGridTable.java
@@ -61,7 +61,7 @@ public class CubeGridTable {
         Cuboid cuboid = Cuboid.findById(cubeDesc, cuboidId);
         return newGTInfo(cuboid, new CubeDimEncMap(cubeDesc, dictionaryMap));
     }
-    
+
     public static GTInfo newGTInfo(Cuboid cuboid, IDimensionEncodingMap dimEncMap) {
         CuboidToGridTableMapping mapping = new CuboidToGridTableMapping(cuboid);
 

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-cube/src/main/java/org/apache/kylin/cube/gridtable/CuboidToGridTableMapping.java
----------------------------------------------------------------------
diff --git a/core-cube/src/main/java/org/apache/kylin/cube/gridtable/CuboidToGridTableMapping.java b/core-cube/src/main/java/org/apache/kylin/cube/gridtable/CuboidToGridTableMapping.java
index 75ab140..0904686 100644
--- a/core-cube/src/main/java/org/apache/kylin/cube/gridtable/CuboidToGridTableMapping.java
+++ b/core-cube/src/main/java/org/apache/kylin/cube/gridtable/CuboidToGridTableMapping.java
@@ -84,16 +84,16 @@ public class CuboidToGridTableMapping {
                 metricsColBlocks.add(new BitSet());
             }
         }
-        
+
         // metrics
         metrics2gt = Maps.newHashMap();
-        for (MeasureDesc measure :cuboid.getCubeDesc().getMeasures()) {
+        for (MeasureDesc measure : cuboid.getCubeDesc().getMeasures()) {
             // Count distinct & holistic count distinct are equals() but different.
             // Ensure the holistic version if exists is always the first.
             FunctionDesc func = measure.getFunction();
             metrics2gt.put(func, gtColIdx);
             gtDataTypes.add(func.getReturnDataType());
-            
+
             // map to column block
             int cbIdx = 0;
             for (HBaseColumnFamilyDesc familyDesc : cuboid.getCubeDesc().getHbaseMapping().getColumnFamily()) {
@@ -104,14 +104,14 @@ public class CuboidToGridTableMapping {
                     cbIdx++;
                 }
             }
-            
+
             gtColIdx++;
         }
-        
+
         for (BitSet set : metricsColBlocks) {
             gtColBlocks.add(new ImmutableBitSet(set));
         }
-        
+
         nMetrics = gtColIdx - nDimensions;
         assert nMetrics == cuboid.getCubeDesc().getMeasures().size();
     }

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-cube/src/main/java/org/apache/kylin/cube/gridtable/TrimmedDimEnc.java
----------------------------------------------------------------------
diff --git a/core-cube/src/main/java/org/apache/kylin/cube/gridtable/TrimmedDimEnc.java b/core-cube/src/main/java/org/apache/kylin/cube/gridtable/TrimmedDimEnc.java
index 84581ab..c4bee8a 100644
--- a/core-cube/src/main/java/org/apache/kylin/cube/gridtable/TrimmedDimEnc.java
+++ b/core-cube/src/main/java/org/apache/kylin/cube/gridtable/TrimmedDimEnc.java
@@ -18,13 +18,13 @@
 
 package org.apache.kylin.cube.gridtable;
 
-import org.apache.kylin.dimension.DimensionEncoding;
-import org.apache.kylin.metadata.datatype.DataTypeSerializer;
-
 import java.io.IOException;
 import java.io.ObjectInput;
 import java.io.ObjectOutput;
 
+import org.apache.kylin.dimension.DimensionEncoding;
+import org.apache.kylin.metadata.datatype.DataTypeSerializer;
+
 public class TrimmedDimEnc extends DimensionEncoding {
     private static final long serialVersionUID = 1L;
 

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-cube/src/main/java/org/apache/kylin/cube/gridtable/TrimmedDimensionSerializer.java
----------------------------------------------------------------------
diff --git a/core-cube/src/main/java/org/apache/kylin/cube/gridtable/TrimmedDimensionSerializer.java b/core-cube/src/main/java/org/apache/kylin/cube/gridtable/TrimmedDimensionSerializer.java
index 05ef3e8..b23a461 100644
--- a/core-cube/src/main/java/org/apache/kylin/cube/gridtable/TrimmedDimensionSerializer.java
+++ b/core-cube/src/main/java/org/apache/kylin/cube/gridtable/TrimmedDimensionSerializer.java
@@ -18,10 +18,10 @@
 
 package org.apache.kylin.cube.gridtable;
 
-import org.apache.kylin.metadata.datatype.DataTypeSerializer;
-
 import java.nio.ByteBuffer;
 
+import org.apache.kylin.metadata.datatype.DataTypeSerializer;
+
 public class TrimmedDimensionSerializer extends DataTypeSerializer<Object> {
 
     final int fixedLen;

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/AbstractInMemCubeBuilder.java
----------------------------------------------------------------------
diff --git a/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/AbstractInMemCubeBuilder.java b/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/AbstractInMemCubeBuilder.java
index 335a769..e385ab9 100644
--- a/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/AbstractInMemCubeBuilder.java
+++ b/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/AbstractInMemCubeBuilder.java
@@ -61,7 +61,7 @@ abstract public class AbstractInMemCubeBuilder {
     public void setReserveMemoryMB(int mb) {
         this.reserveMemoryMB = mb;
     }
-    
+
     public int getReserveMemoryMB() {
         return this.reserveMemoryMB;
     }

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/CompoundCuboidWriter.java
----------------------------------------------------------------------
diff --git a/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/CompoundCuboidWriter.java b/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/CompoundCuboidWriter.java
index 46eef50..2eb748b 100644
--- a/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/CompoundCuboidWriter.java
+++ b/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/CompoundCuboidWriter.java
@@ -17,10 +17,10 @@
 
 package org.apache.kylin.cube.inmemcubing;
 
-import org.apache.kylin.gridtable.GTRecord;
-
 import java.io.IOException;
 
+import org.apache.kylin.gridtable.GTRecord;
+
 /**
  */
 public class CompoundCuboidWriter implements ICuboidWriter {

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/ConcurrentDiskStore.java
----------------------------------------------------------------------
diff --git a/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/ConcurrentDiskStore.java b/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/ConcurrentDiskStore.java
index 8b95b4f..d5d502c 100644
--- a/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/ConcurrentDiskStore.java
+++ b/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/ConcurrentDiskStore.java
@@ -217,7 +217,7 @@ public class ConcurrentDiskStore implements IGTStore, Closeable {
                 GTRecord record = new GTRecord(info);
                 GTRecord next;
                 ByteBuffer buf = ByteBuffer.allocate(info.getMaxRecordLength());
-                
+
                 @Override
                 public boolean hasNext() {
                     if (next != null)
@@ -309,7 +309,7 @@ public class ConcurrentDiskStore implements IGTStore, Closeable {
         public void write(GTRecord rec) throws IOException {
             buf.clear();
             rec.exportColumns(info.getAllColumns(), buf);
-            
+
             int len = buf.position();
             dout.writeInt(len);
             dout.write(buf.array(), buf.arrayOffset(), len);

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/ICuboidWriter.java
----------------------------------------------------------------------
diff --git a/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/ICuboidWriter.java b/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/ICuboidWriter.java
index e6cfa02..9e24ec7 100644
--- a/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/ICuboidWriter.java
+++ b/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/ICuboidWriter.java
@@ -17,10 +17,10 @@
 
 package org.apache.kylin.cube.inmemcubing;
 
-import org.apache.kylin.gridtable.GTRecord;
-
 import java.io.IOException;
 
+import org.apache.kylin.gridtable.GTRecord;
+
 /**
  */
 public interface ICuboidWriter {
@@ -28,6 +28,6 @@ public interface ICuboidWriter {
     void write(long cuboidId, GTRecord record) throws IOException;
 
     void flush() throws IOException;
-    
+
     void close() throws IOException;
 }

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/InMemCubeBuilder.java
----------------------------------------------------------------------
diff --git a/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/InMemCubeBuilder.java b/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/InMemCubeBuilder.java
index fe83ccf..fd9d03e 100644
--- a/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/InMemCubeBuilder.java
+++ b/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/InMemCubeBuilder.java
@@ -28,8 +28,6 @@ import java.util.concurrent.ConcurrentNavigableMap;
 import java.util.concurrent.ConcurrentSkipListMap;
 import java.util.concurrent.atomic.AtomicInteger;
 
-import org.apache.kylin.measure.topn.Counter;
-import org.apache.kylin.measure.topn.TopNCounter;
 import org.apache.kylin.common.util.Dictionary;
 import org.apache.kylin.common.util.ImmutableBitSet;
 import org.apache.kylin.common.util.MemoryBudgetController;
@@ -46,6 +44,8 @@ import org.apache.kylin.gridtable.GTRecord;
 import org.apache.kylin.gridtable.GTScanRequest;
 import org.apache.kylin.gridtable.GridTable;
 import org.apache.kylin.gridtable.IGTScanner;
+import org.apache.kylin.measure.topn.Counter;
+import org.apache.kylin.measure.topn.TopNCounter;
 import org.apache.kylin.metadata.datatype.DoubleMutable;
 import org.apache.kylin.metadata.model.MeasureDesc;
 import org.apache.kylin.metadata.model.TblColRef;
@@ -355,7 +355,7 @@ public class InMemCubeBuilder extends AbstractInMemCubeBuilder {
 
     private CuboidResult updateCuboidResult(long cuboidId, GridTable table, int nRows, long timeSpent, int aggrCacheMB) {
         if (aggrCacheMB <= 0 && baseResult != null) {
-            aggrCacheMB = (int) Math.round( //
+            aggrCacheMB = (int) Math.round(//
                     (DERIVE_AGGR_CACHE_CONSTANT_FACTOR + DERIVE_AGGR_CACHE_VARIABLE_FACTOR * nRows / baseResult.nRows) //
                             * baseResult.aggrCacheMB);
         }

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/InMemCubeBuilderInputConverter.java
----------------------------------------------------------------------
diff --git a/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/InMemCubeBuilderInputConverter.java b/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/InMemCubeBuilderInputConverter.java
index 127045c..3ce635b 100644
--- a/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/InMemCubeBuilderInputConverter.java
+++ b/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/InMemCubeBuilderInputConverter.java
@@ -17,14 +17,11 @@
 */
 package org.apache.kylin.cube.inmemcubing;
 
-import org.apache.kylin.common.util.Bytes;
-import org.apache.kylin.common.util.Dictionary;
-
 import java.util.List;
 import java.util.Map;
 
-import com.google.common.collect.Lists;
-
+import org.apache.kylin.common.util.Bytes;
+import org.apache.kylin.common.util.Dictionary;
 import org.apache.kylin.cube.model.CubeDesc;
 import org.apache.kylin.cube.model.CubeJoinedFlatTableDesc;
 import org.apache.kylin.gridtable.GTInfo;
@@ -35,12 +32,14 @@ import org.apache.kylin.metadata.model.MeasureDesc;
 import org.apache.kylin.metadata.model.ParameterDesc;
 import org.apache.kylin.metadata.model.TblColRef;
 
+import com.google.common.collect.Lists;
+
 /**
  */
 public class InMemCubeBuilderInputConverter {
 
     public static final byte[] HIVE_NULL = Bytes.toBytes("\\N");
-    
+
     private final CubeJoinedFlatTableDesc intermediateTableDesc;
     private final MeasureDesc[] measureDescs;
     private final MeasureIngester<?>[] measureIngesters;
@@ -48,7 +47,6 @@ public class InMemCubeBuilderInputConverter {
     private final Map<TblColRef, Dictionary<String>> dictionaryMap;
     private final GTInfo gtInfo;
     protected List<byte[]> nullBytes;
-    
 
     public InMemCubeBuilderInputConverter(CubeDesc cubeDesc, Map<TblColRef, Dictionary<String>> dictionaryMap, GTInfo gtInfo) {
         this.gtInfo = gtInfo;
@@ -59,7 +57,7 @@ public class InMemCubeBuilderInputConverter {
         this.dictionaryMap = dictionaryMap;
         initNullBytes(cubeDesc);
     }
-    
+
     public final GTRecord convert(List<String> row) {
         final GTRecord record = new GTRecord(gtInfo);
         convert(row, record);
@@ -81,7 +79,7 @@ public class InMemCubeBuilderInputConverter {
 
         for (int i = 0; i < keySize; i++) {
             key[i] = row.get(intermediateTableDesc.getRowKeyColumnIndexes()[i]);
-            if (key[i] != null && isNull(Bytes.toBytes((String)key[i]))) {
+            if (key[i] != null && isNull(Bytes.toBytes((String) key[i]))) {
                 key[i] = null;
             }
         }
@@ -96,12 +94,12 @@ public class InMemCubeBuilderInputConverter {
         }
         return values;
     }
-    
+
     private Object buildValueOf(int idxOfMeasure, List<String> row) {
         MeasureDesc measure = measureDescs[idxOfMeasure];
         FunctionDesc function = measure.getFunction();
         int[] colIdxOnFlatTable = intermediateTableDesc.getMeasureColumnIndexes()[idxOfMeasure];
-        
+
         int paramCount = function.getParameterCount();
         String[] inputToMeasure = new String[paramCount];
 
@@ -119,7 +117,7 @@ public class InMemCubeBuilderInputConverter {
             }
             inputToMeasure[i] = value;
         }
-        
+
         return measureIngesters[idxOfMeasure].valueOf(inputToMeasure, measure, dictionaryMap);
     }
 
@@ -142,5 +140,4 @@ public class InMemCubeBuilderInputConverter {
         return false;
     }
 
-    
 }

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/InMemCubeBuilderUtils.java
----------------------------------------------------------------------
diff --git a/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/InMemCubeBuilderUtils.java b/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/InMemCubeBuilderUtils.java
index 8fa99cd..a0b4d46 100644
--- a/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/InMemCubeBuilderUtils.java
+++ b/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/InMemCubeBuilderUtils.java
@@ -25,7 +25,7 @@ import org.apache.kylin.common.util.Pair;
 /**
  */
 public final class InMemCubeBuilderUtils {
-    
+
     public static final Pair<ImmutableBitSet, ImmutableBitSet> getDimensionAndMetricColumnBitSet(final long cuboidId, final int measureCount) {
         int cardinality = Long.bitCount(cuboidId);
         BitSet dimension = new BitSet();
@@ -34,7 +34,7 @@ public final class InMemCubeBuilderUtils {
         metrics.set(cardinality, cardinality + measureCount);
         return Pair.newPair(new ImmutableBitSet(dimension), new ImmutableBitSet(metrics));
     }
-    
+
     public static final Pair<ImmutableBitSet, ImmutableBitSet> getDimensionAndMetricColumnBitSet(final long baseCuboidId, final long childCuboidId, final int measureCount) {
         final Pair<ImmutableBitSet, ImmutableBitSet> parentDimensionAndMetricColumnBitSet = getDimensionAndMetricColumnBitSet(baseCuboidId, measureCount);
         ImmutableBitSet parentDimensions = parentDimensionAndMetricColumnBitSet.getFirst();

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/MemDiskStore.java
----------------------------------------------------------------------
diff --git a/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/MemDiskStore.java b/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/MemDiskStore.java
index 166ae76..40a15ee 100644
--- a/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/MemDiskStore.java
+++ b/core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/MemDiskStore.java
@@ -17,7 +17,7 @@
 
 package org.apache.kylin.cube.inmemcubing;
 
-import static org.apache.kylin.common.util.MemoryBudgetController.*;
+import static org.apache.kylin.common.util.MemoryBudgetController.ONE_MB;
 
 import java.io.BufferedInputStream;
 import java.io.BufferedOutputStream;
@@ -344,7 +344,7 @@ public class MemDiskStore implements IGTStore, Closeable {
         public void write(GTRecord rec) throws IOException {
             buf.clear();
             rec.exportColumns(info.getAllColumns(), buf);
-            
+
             int len = buf.position();
             dout.writeInt(len);
             dout.write(buf.array(), buf.arrayOffset(), len);

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-cube/src/main/java/org/apache/kylin/cube/model/AggregationGroup.java
----------------------------------------------------------------------
diff --git a/core-cube/src/main/java/org/apache/kylin/cube/model/AggregationGroup.java b/core-cube/src/main/java/org/apache/kylin/cube/model/AggregationGroup.java
index 54adb6c..6dc1b2f 100644
--- a/core-cube/src/main/java/org/apache/kylin/cube/model/AggregationGroup.java
+++ b/core-cube/src/main/java/org/apache/kylin/cube/model/AggregationGroup.java
@@ -28,6 +28,7 @@ import org.apache.kylin.metadata.model.TblColRef;
 import com.fasterxml.jackson.annotation.JsonAutoDetect;
 import com.fasterxml.jackson.annotation.JsonAutoDetect.Visibility;
 import com.fasterxml.jackson.annotation.JsonProperty;
+
 import com.google.common.base.Preconditions;
 import com.google.common.collect.Lists;
 
@@ -277,7 +278,7 @@ public class AggregationGroup {
     public SelectRule getSelectRule() {
         return selectRule;
     }
-    
+
     public boolean isMandatoryOnlyValid() {
         return isMandatoryOnlyValid;
     }

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-cube/src/main/java/org/apache/kylin/cube/model/CubeDesc.java
----------------------------------------------------------------------
diff --git a/core-cube/src/main/java/org/apache/kylin/cube/model/CubeDesc.java b/core-cube/src/main/java/org/apache/kylin/cube/model/CubeDesc.java
index d379bf3..da92e0f 100644
--- a/core-cube/src/main/java/org/apache/kylin/cube/model/CubeDesc.java
+++ b/core-cube/src/main/java/org/apache/kylin/cube/model/CubeDesc.java
@@ -64,10 +64,11 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import com.fasterxml.jackson.annotation.JsonAutoDetect;
-import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonAutoDetect.Visibility;
+import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.core.JsonProcessingException;
+
 import com.google.common.base.Function;
 import com.google.common.collect.Collections2;
 import com.google.common.collect.Lists;
@@ -145,7 +146,7 @@ public class CubeDesc extends RootPersistentEntity {
     @JsonProperty("partition_date_start")
     private long partitionDateStart = 0L;
     @JsonProperty("partition_date_end")
-    private long partitionDateEnd = 3153600000000l;
+    private long partitionDateEnd = 3153600000000L;
     @JsonProperty("auto_merge_time_ranges")
     private long[] autoMergeTimeRanges;
     @JsonProperty("retention_range")
@@ -565,7 +566,7 @@ public class CubeDesc extends RootPersistentEntity {
         if (rowkey.getRowKeyColumns().length != dimCols.size()) {
             addError("RowKey columns count (" + rowkey.getRowKeyColumns().length + ") does not match dimension columns count (" + dimCols.size() + "). ");
         }
-        
+
         initDictionaryDesc();
     }
 
@@ -913,7 +914,7 @@ public class CubeDesc extends RootPersistentEntity {
             }
         }
     }
-    
+
     private void initDictionaryDesc() {
         if (dictionaries != null) {
             for (DictionaryDesc dictDesc : dictionaries) {
@@ -1042,7 +1043,7 @@ public class CubeDesc extends RootPersistentEntity {
             MeasureType<?> aggrType = measure.getFunction().getMeasureType();
             result.addAll(aggrType.getColumnsNeedDictionary(measure.getFunction()));
         }
-        
+
         // any additional dictionaries
         if (dictionaries != null) {
             for (DictionaryDesc dictDesc : dictionaries) {
@@ -1050,14 +1051,14 @@ public class CubeDesc extends RootPersistentEntity {
                 result.add(col);
             }
         }
-        
+
         return result;
     }
 
     /** Get columns that need dictionary built on it. Note a column could reuse dictionary of another column. */
     public Set<TblColRef> getAllColumnsNeedDictionaryBuilt() {
         Set<TblColRef> result = getAllColumnsHaveDictionary();
-        
+
         // remove columns that reuse other's dictionary
         if (dictionaries != null) {
             for (DictionaryDesc dictDesc : dictionaries) {
@@ -1067,7 +1068,7 @@ public class CubeDesc extends RootPersistentEntity {
                 }
             }
         }
-        
+
         return result;
     }
 
@@ -1083,7 +1084,7 @@ public class CubeDesc extends RootPersistentEntity {
         }
         return col;
     }
-    
+
     /** Get a column which can be used in distributing the source table */
     public TblColRef getDistributedByColumn() {
         Set<TblColRef> shardBy = getShardByColumns();
@@ -1093,11 +1094,11 @@ public class CubeDesc extends RootPersistentEntity {
 
         return null;
     }
-    
+
     public String getDictionaryBuilderClass(TblColRef col) {
         if (dictionaries == null)
             return null;
-        
+
         for (DictionaryDesc desc : dictionaries) {
             if (desc.getBuilderClass() != null) {
                 if (col.equals(desc.getResuseColumnRef())) {

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-cube/src/main/java/org/apache/kylin/cube/model/DictionaryDesc.java
----------------------------------------------------------------------
diff --git a/core-cube/src/main/java/org/apache/kylin/cube/model/DictionaryDesc.java b/core-cube/src/main/java/org/apache/kylin/cube/model/DictionaryDesc.java
index bdfc364..f8e3432 100644
--- a/core-cube/src/main/java/org/apache/kylin/cube/model/DictionaryDesc.java
+++ b/core-cube/src/main/java/org/apache/kylin/cube/model/DictionaryDesc.java
@@ -22,9 +22,9 @@ import org.apache.kylin.metadata.model.DataModelDesc;
 import org.apache.kylin.metadata.model.TblColRef;
 
 import com.fasterxml.jackson.annotation.JsonAutoDetect;
+import com.fasterxml.jackson.annotation.JsonAutoDetect.Visibility;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
-import com.fasterxml.jackson.annotation.JsonAutoDetect.Visibility;
 
 @JsonAutoDetect(fieldVisibility = Visibility.NONE, getterVisibility = Visibility.NONE, isGetterVisibility = Visibility.NONE, setterVisibility = Visibility.NONE)
 public class DictionaryDesc {
@@ -41,19 +41,19 @@ public class DictionaryDesc {
     // computed content
     private TblColRef colRef;
     private TblColRef reuseColRef;
-    
+
     void init(CubeDesc cubeDesc) {
         DataModelDesc model = cubeDesc.getModel();
-        
+
         column = column.toUpperCase();
         colRef = model.findColumn(column).getRef();
-        
+
         if (reuseColumn != null) {
             reuseColumn = reuseColumn.toUpperCase();
             reuseColRef = model.findColumn(reuseColumn).getRef();
         }
     }
-    
+
     public TblColRef getColumnRef() {
         return colRef;
     }
@@ -61,7 +61,7 @@ public class DictionaryDesc {
     public TblColRef getResuseColumnRef() {
         return reuseColRef;
     }
-    
+
     public String getBuilderClass() {
         return builderClass;
     }

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-cube/src/main/java/org/apache/kylin/cube/model/DimensionDesc.java
----------------------------------------------------------------------
diff --git a/core-cube/src/main/java/org/apache/kylin/cube/model/DimensionDesc.java b/core-cube/src/main/java/org/apache/kylin/cube/model/DimensionDesc.java
index 3a348a3..c33beb7 100644
--- a/core-cube/src/main/java/org/apache/kylin/cube/model/DimensionDesc.java
+++ b/core-cube/src/main/java/org/apache/kylin/cube/model/DimensionDesc.java
@@ -31,6 +31,7 @@ import org.apache.kylin.metadata.model.TblColRef;
 import com.fasterxml.jackson.annotation.JsonAutoDetect;
 import com.fasterxml.jackson.annotation.JsonAutoDetect.Visibility;
 import com.fasterxml.jackson.annotation.JsonProperty;
+
 import com.google.common.base.Objects;
 
 /**
@@ -148,7 +149,6 @@ public class DimensionDesc {
     public String[] getDerived() {
         return derived;
     }
-    
 
     public void setDerived(String[] derived) {
         this.derived = derived;

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-cube/src/main/java/org/apache/kylin/cube/model/HBaseColumnDesc.java
----------------------------------------------------------------------
diff --git a/core-cube/src/main/java/org/apache/kylin/cube/model/HBaseColumnDesc.java b/core-cube/src/main/java/org/apache/kylin/cube/model/HBaseColumnDesc.java
index e82ad53..fb491f8 100644
--- a/core-cube/src/main/java/org/apache/kylin/cube/model/HBaseColumnDesc.java
+++ b/core-cube/src/main/java/org/apache/kylin/cube/model/HBaseColumnDesc.java
@@ -57,11 +57,11 @@ public class HBaseColumnDesc {
     public void setMeasureRefs(String[] measureRefs) {
         this.measureRefs = measureRefs;
     }
-    
+
     public int[] getMeasureIndex() {
         return measureIndex;
     }
-    
+
     public void setMeasureIndex(int[] index) {
         this.measureIndex = index;
     }

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-cube/src/main/java/org/apache/kylin/cube/model/RowKeyColDesc.java
----------------------------------------------------------------------
diff --git a/core-cube/src/main/java/org/apache/kylin/cube/model/RowKeyColDesc.java b/core-cube/src/main/java/org/apache/kylin/cube/model/RowKeyColDesc.java
index d4cfcb7..c4518c3 100644
--- a/core-cube/src/main/java/org/apache/kylin/cube/model/RowKeyColDesc.java
+++ b/core-cube/src/main/java/org/apache/kylin/cube/model/RowKeyColDesc.java
@@ -33,6 +33,7 @@ import com.fasterxml.jackson.annotation.JsonAutoDetect;
 import com.fasterxml.jackson.annotation.JsonAutoDetect.Visibility;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
+
 import com.google.common.base.Objects;
 import com.google.common.base.Preconditions;
 
@@ -74,7 +75,7 @@ public class RowKeyColDesc {
 
         if (!DimensionEncodingFactory.isVaildEncoding(this.encodingName))
             throw new IllegalArgumentException("Not supported row key col encoding: '" + this.encoding + "'");
-        
+
         // convert date/time dictionary to DimensionEncoding implicitly, date/time dictionary is deprecated
         if (DictionaryDimEnc.ENCODING_NAME.equals(encodingName)) {
             DataType type = colRef.getType();

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-cube/src/main/java/org/apache/kylin/cube/model/RowKeyDesc.java
----------------------------------------------------------------------
diff --git a/core-cube/src/main/java/org/apache/kylin/cube/model/RowKeyDesc.java b/core-cube/src/main/java/org/apache/kylin/cube/model/RowKeyDesc.java
index 2dac2bf..5a4e6aa 100644
--- a/core-cube/src/main/java/org/apache/kylin/cube/model/RowKeyDesc.java
+++ b/core-cube/src/main/java/org/apache/kylin/cube/model/RowKeyDesc.java
@@ -31,6 +31,7 @@ import org.apache.kylin.metadata.model.TblColRef;
 import com.fasterxml.jackson.annotation.JsonAutoDetect;
 import com.fasterxml.jackson.annotation.JsonAutoDetect.Visibility;
 import com.fasterxml.jackson.annotation.JsonProperty;
+
 import com.google.common.base.Objects;
 
 /**
@@ -85,8 +86,7 @@ public class RowKeyDesc {
         int[] tmp = new int[100];
         int x = 0;
         for (int i = 0, n = rowkeyColumns.length; i < n; i++) {
-            if ("true".equalsIgnoreCase(rowkeyColumns[i].getIndex())
-                    && DictionaryDimEnc.ENCODING_NAME.equalsIgnoreCase(rowkeyColumns[i].getEncoding())) {
+            if ("true".equalsIgnoreCase(rowkeyColumns[i].getIndex()) && DictionaryDimEnc.ENCODING_NAME.equalsIgnoreCase(rowkeyColumns[i].getEncoding())) {
                 tmp[x] = i;
                 x++;
             }
@@ -125,7 +125,6 @@ public class RowKeyDesc {
         }
     }
 
-
     public long getFullMask() {
         return this.fullMask;
     }

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-cube/src/main/java/org/apache/kylin/cube/model/v1_4_0/CubeDesc.java
----------------------------------------------------------------------
diff --git a/core-cube/src/main/java/org/apache/kylin/cube/model/v1_4_0/CubeDesc.java b/core-cube/src/main/java/org/apache/kylin/cube/model/v1_4_0/CubeDesc.java
index 0a88a4f..77019b0 100644
--- a/core-cube/src/main/java/org/apache/kylin/cube/model/v1_4_0/CubeDesc.java
+++ b/core-cube/src/main/java/org/apache/kylin/cube/model/v1_4_0/CubeDesc.java
@@ -58,6 +58,7 @@ import com.fasterxml.jackson.annotation.JsonAutoDetect;
 import com.fasterxml.jackson.annotation.JsonAutoDetect.Visibility;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.core.JsonProcessingException;
+
 import com.google.common.collect.Lists;
 import com.google.common.collect.Maps;
 
@@ -120,7 +121,7 @@ public class CubeDesc extends RootPersistentEntity {
     @JsonProperty("partition_date_start")
     private long partitionDateStart = 0L;
     @JsonProperty("partition_date_end")
-    private long partitionDateEnd = 3153600000000l;
+    private long partitionDateEnd = 3153600000000L;
     @JsonProperty("auto_merge_time_ranges")
     private long[] autoMergeTimeRanges;
     @JsonProperty("retention_range")
@@ -661,14 +662,13 @@ public class CubeDesc extends RootPersistentEntity {
             func.init(factTable, lookups);
             allColumns.addAll(func.getParameter().getColRefs());
 
-//            // verify holistic count distinct as a dependent measure
-//            if (isHolisticCountDistinct() && StringUtils.isBlank(m.getDependentMeasureRef())) {
-//                throw new IllegalStateException(m + " is a holistic count distinct but it has no DependentMeasureRef defined!");
-//            }
+            //            // verify holistic count distinct as a dependent measure
+            //            if (isHolisticCountDistinct() && StringUtils.isBlank(m.getDependentMeasureRef())) {
+            //                throw new IllegalStateException(m + " is a holistic count distinct but it has no DependentMeasureRef defined!");
+            //            }
         }
     }
 
-
     private void initMeasureReferenceToColumnFamily() {
         if (measures == null || measures.size() == 0)
             return;

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-cube/src/main/java/org/apache/kylin/cube/model/v1_4_0/HBaseColumnDesc.java
----------------------------------------------------------------------
diff --git a/core-cube/src/main/java/org/apache/kylin/cube/model/v1_4_0/HBaseColumnDesc.java b/core-cube/src/main/java/org/apache/kylin/cube/model/v1_4_0/HBaseColumnDesc.java
index 2db4ec7..086c8a0 100644
--- a/core-cube/src/main/java/org/apache/kylin/cube/model/v1_4_0/HBaseColumnDesc.java
+++ b/core-cube/src/main/java/org/apache/kylin/cube/model/v1_4_0/HBaseColumnDesc.java
@@ -57,11 +57,11 @@ public class HBaseColumnDesc {
     public void setMeasureRefs(String[] measureRefs) {
         this.measureRefs = measureRefs;
     }
-    
+
     public int[] getMeasureIndex() {
         return measureIndex;
     }
-    
+
     public void setMeasureIndex(int[] index) {
         this.measureIndex = index;
     }

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-cube/src/main/java/org/apache/kylin/cube/model/v1_4_0/HBaseColumnFamilyDesc.java
----------------------------------------------------------------------
diff --git a/core-cube/src/main/java/org/apache/kylin/cube/model/v1_4_0/HBaseColumnFamilyDesc.java b/core-cube/src/main/java/org/apache/kylin/cube/model/v1_4_0/HBaseColumnFamilyDesc.java
index bcde3d5..5df0b76 100644
--- a/core-cube/src/main/java/org/apache/kylin/cube/model/v1_4_0/HBaseColumnFamilyDesc.java
+++ b/core-cube/src/main/java/org/apache/kylin/cube/model/v1_4_0/HBaseColumnFamilyDesc.java
@@ -20,7 +20,6 @@ package org.apache.kylin.cube.model.v1_4_0;
 
 import java.util.Arrays;
 
-
 import com.fasterxml.jackson.annotation.JsonAutoDetect;
 import com.fasterxml.jackson.annotation.JsonAutoDetect.Visibility;
 import com.fasterxml.jackson.annotation.JsonProperty;

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-cube/src/main/java/org/apache/kylin/cube/model/v1_4_0/RowKeyDesc.java
----------------------------------------------------------------------
diff --git a/core-cube/src/main/java/org/apache/kylin/cube/model/v1_4_0/RowKeyDesc.java b/core-cube/src/main/java/org/apache/kylin/cube/model/v1_4_0/RowKeyDesc.java
index 112a249..7d37a76 100644
--- a/core-cube/src/main/java/org/apache/kylin/cube/model/v1_4_0/RowKeyDesc.java
+++ b/core-cube/src/main/java/org/apache/kylin/cube/model/v1_4_0/RowKeyDesc.java
@@ -50,7 +50,7 @@ public class RowKeyDesc {
         }
 
         public long groupMask;
-        public long groupOneBitMasks[];
+        public long[] groupOneBitMasks;
         public long uniqueMask;
         public long leftoverMask;
     }
@@ -283,7 +283,7 @@ public class RowKeyDesc {
 
                 if ((tailMask & bit) > 0)
                     continue; // ignore levels in tail, they don't participate
-                              // aggregation group combination anyway
+                // aggregation group combination anyway
 
                 mask.fullMask |= bit;
                 this.hierarchyFullMask |= bit;

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-cube/src/main/java/org/apache/kylin/cube/model/validation/CubeMetadataValidator.java
----------------------------------------------------------------------
diff --git a/core-cube/src/main/java/org/apache/kylin/cube/model/validation/CubeMetadataValidator.java b/core-cube/src/main/java/org/apache/kylin/cube/model/validation/CubeMetadataValidator.java
index d2f84f3..c631f8d 100644
--- a/core-cube/src/main/java/org/apache/kylin/cube/model/validation/CubeMetadataValidator.java
+++ b/core-cube/src/main/java/org/apache/kylin/cube/model/validation/CubeMetadataValidator.java
@@ -32,7 +32,7 @@ import org.apache.kylin.cube.model.validation.rule.RowKeyAttrRule;
  */
 public class CubeMetadataValidator {
     @SuppressWarnings("unchecked")
-    private IValidatorRule<CubeDesc>[] rules = new IValidatorRule[] { new FunctionRule(), new AggregationGroupRule(), new RowKeyAttrRule(), new DictionaryRule()};
+    private IValidatorRule<CubeDesc>[] rules = new IValidatorRule[] { new FunctionRule(), new AggregationGroupRule(), new RowKeyAttrRule(), new DictionaryRule() };
 
     public ValidateContext validate(CubeDesc cube) {
         return validate(cube, false);

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-cube/src/main/java/org/apache/kylin/cube/model/validation/IValidatorRule.java
----------------------------------------------------------------------
diff --git a/core-cube/src/main/java/org/apache/kylin/cube/model/validation/IValidatorRule.java b/core-cube/src/main/java/org/apache/kylin/cube/model/validation/IValidatorRule.java
index ba47c41..4787e61 100644
--- a/core-cube/src/main/java/org/apache/kylin/cube/model/validation/IValidatorRule.java
+++ b/core-cube/src/main/java/org/apache/kylin/cube/model/validation/IValidatorRule.java
@@ -18,13 +18,10 @@
 
 package org.apache.kylin.cube.model.validation;
 
-import org.apache.kylin.cube.model.validation.rule.IKylinValidationConstants;
-
 /**
  * @author jianliu
  * 
  */
-public interface IValidatorRule<T> extends IKylinValidationConstants {
-
+public interface IValidatorRule<T> {
     public void validate(T element, ValidateContext context);
 }

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-cube/src/main/java/org/apache/kylin/cube/model/validation/rule/DictionaryRule.java
----------------------------------------------------------------------
diff --git a/core-cube/src/main/java/org/apache/kylin/cube/model/validation/rule/DictionaryRule.java b/core-cube/src/main/java/org/apache/kylin/cube/model/validation/rule/DictionaryRule.java
index effe30c..2368105 100644
--- a/core-cube/src/main/java/org/apache/kylin/cube/model/validation/rule/DictionaryRule.java
+++ b/core-cube/src/main/java/org/apache/kylin/cube/model/validation/rule/DictionaryRule.java
@@ -18,17 +18,18 @@
 
 package org.apache.kylin.cube.model.validation.rule;
 
-import org.apache.kylin.cube.model.*;
+import java.util.HashMap;
+import java.util.List;
+
+import org.apache.kylin.cube.model.CubeDesc;
+import org.apache.kylin.cube.model.DictionaryDesc;
+import org.apache.kylin.cube.model.RowKeyColDesc;
 import org.apache.kylin.cube.model.validation.IValidatorRule;
 import org.apache.kylin.cube.model.validation.ResultLevel;
 import org.apache.kylin.cube.model.validation.ValidateContext;
-import org.apache.kylin.dict.AppendTrieDictionary;
 import org.apache.kylin.dict.GlobalDictionaryBuilder;
 import org.apache.kylin.metadata.model.TblColRef;
 
-import java.util.HashMap;
-import java.util.List;
-
 /**
  * Created by sunyerui on 16/6/1.
  */

http://git-wip-us.apache.org/repos/asf/kylin/blob/5d4982e2/core-cube/src/main/java/org/apache/kylin/cube/model/validation/rule/FunctionRule.java
----------------------------------------------------------------------
diff --git a/core-cube/src/main/java/org/apache/kylin/cube/model/validation/rule/FunctionRule.java b/core-cube/src/main/java/org/apache/kylin/cube/model/validation/rule/FunctionRule.java
index e27a642..44b0be0 100644
--- a/core-cube/src/main/java/org/apache/kylin/cube/model/validation/rule/FunctionRule.java
+++ b/core-cube/src/main/java/org/apache/kylin/cube/model/validation/rule/FunctionRule.java
@@ -24,7 +24,6 @@ import java.util.Iterator;
 import java.util.List;
 import java.util.Set;
 
-import com.google.common.collect.Lists;
 import org.apache.commons.lang.StringUtils;
 import org.apache.kylin.cube.model.CubeDesc;
 import org.apache.kylin.cube.model.DimensionDesc;
@@ -39,6 +38,8 @@ import org.apache.kylin.metadata.model.MeasureDesc;
 import org.apache.kylin.metadata.model.ParameterDesc;
 import org.apache.kylin.metadata.model.TableDesc;
 
+import com.google.common.collect.Lists;
+
 /**
  * Validate function parameter.
  * <p/>