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From qingwz...@apache.org
Subject [3/3] incubator-eagle git commit: [EAGLE-724] Fix eagle-common checkstyle problem
Date Fri, 04 Nov 2016 10:50:57 GMT
[EAGLE-724] Fix eagle-common checkstyle problem

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Fix eagle-common checkstyle problem

https://issues.apache.org/jira/browse/EAGLE-724

---

Author: koone <luokun1028@126.com>

Closes #610 from koone/EAGLE-724.


Project: http://git-wip-us.apache.org/repos/asf/incubator-eagle/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-eagle/commit/ca0fae40
Tree: http://git-wip-us.apache.org/repos/asf/incubator-eagle/tree/ca0fae40
Diff: http://git-wip-us.apache.org/repos/asf/incubator-eagle/diff/ca0fae40

Branch: refs/heads/master
Commit: ca0fae40712fe5bb6962554b5fe17e7ff360763f
Parents: 38f2926
Author: koone <luokun1028@126.com>
Authored: Fri Nov 4 18:50:43 2016 +0800
Committer: Zhao, Qingwen <qingwzhao@apache.org>
Committed: Fri Nov 4 18:50:43 2016 +0800

----------------------------------------------------------------------
 eagle-core/eagle-common/pom.xml                 |  13 +
 .../java/org/apache/eagle/common/Base64.java    |  34 +-
 .../java/org/apache/eagle/common/ByteUtil.java  | 292 +++++-----
 .../apache/eagle/common/CircularArrayList.java  |  64 +--
 .../common/CircularArrayListSortedSet.java      | 106 ++--
 .../org/apache/eagle/common/DateTimeUtil.java   |   9 +-
 .../apache/eagle/common/EagleBase64Wrapper.java |  16 +-
 .../eagle/common/EagleExceptionWrapper.java     |   2 +-
 .../org/apache/eagle/common/Environment.java    |   6 +-
 .../main/java/org/apache/eagle/common/OS.java   |  30 +-
 .../apache/eagle/common/SerializableUtils.java  | 168 +++---
 .../eagle/common/agg/AggregateResult.java       |  11 +-
 .../eagle/common/agg/SiddhiAggregator.java      |  36 +-
 .../eagle/common/agg/StreamAggregator.java      |  37 +-
 .../eagle/common/authentication/User.java       |   3 +-
 .../config/AbstractConfigOptionParser.java      |  20 +-
 .../eagle/common/config/ConfigOptionParser.java |  30 +-
 .../apache/eagle/common/config/EagleConfig.java |   2 +-
 .../common/config/EagleConfigConstants.java     |   2 +-
 .../eagle/common/config/EagleConfigFactory.java |  17 +-
 .../eagle/common/config/EagleConfigHelper.java  |   8 +-
 .../common/function/ThrowableConsumer2.java     |   4 +-
 .../common/function/ThrowableFunction.java      |   2 -
 .../eagle/common/metric/AlertContext.java       | 119 ++--
 .../eagle/common/module/CommonGuiceModule.java  |   2 +-
 .../apache/eagle/common/module/GlobalScope.java |   5 +-
 .../eagle/common/module/GuiceJUnitRunner.java   |   9 +-
 .../eagle/common/module/ModuleRegistry.java     |  26 +-
 .../eagle/common/module/ModuleRegistryImpl.java |  12 +-
 .../apache/eagle/common/module/ModuleScope.java |   6 +-
 .../org/apache/eagle/common/module/Modules.java |   7 +-
 .../common/service/HadoopAccountService.java    |   2 +-
 .../apache/eagle/common/service/HadoopUser.java |  29 +-
 .../eagle/common/service/LdapService.java       | 134 +++--
 .../common/service/POSTResultEntityBase.java    |  32 +-
 .../service/TrustAllSSLSocketFactory.java       |   9 +-
 .../eagle-common/src/main/resources/footer.vm   |   6 +-
 .../eagle-common/src/main/resources/header.vm   | 553 ++++++++++---------
 .../src/main/resources/templates/tec_alert.vm   | 159 +++---
 .../org/apache/eagle/common/TestByteUtil.java   | 170 +++---
 .../eagle/common/TestCircularArrayList.java     | 100 ++--
 .../common/TestCircularArrayListSortedSet.java  |  68 +--
 .../apache/eagle/common/TestDateTimeUtil.java   | 126 ++---
 .../eagle/common/TestEagleBase64Wrapper.java    |  32 +-
 .../eagle/common/TestSerializableUtils.java     |  13 +-
 .../eagle/common/TestSiddhiAggregator.java      |  75 +--
 .../eagle/common/agg/TestSiddhiAggregator.java  |  24 +-
 .../common/agg/TestSiddhiExternalTimeBatch.java |  77 ++-
 .../eagle/common/agg/TestStreamAggregator.java  |  58 +-
 .../eagle/common/config/TestEagleConfig.java    |  18 +-
 .../eagle/common/metric/TestAlertContext.java   |   2 +-
 .../eagle/common/module/ModuleRegistryTest.java |  15 +-
 .../eagle-common/src/test/resources/footer.vm   |   6 +-
 .../eagle-common/src/test/resources/header.vm   | 545 +++++++++---------
 .../src/test/resources/log4j.properties         |   4 -
 .../src/test/resources/templates/tec_alert.vm   | 159 +++---
 .../resources/templates/test_anomaly_alert.vm   | 198 +++----
 57 files changed, 1888 insertions(+), 1824 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/ca0fae40/eagle-core/eagle-common/pom.xml
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-common/pom.xml b/eagle-core/eagle-common/pom.xml
index 639d4d5..26b8f8f 100644
--- a/eagle-core/eagle-common/pom.xml
+++ b/eagle-core/eagle-common/pom.xml
@@ -98,5 +98,18 @@
             <version>${guice.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-checkstyle-plugin</artifactId>
+                <configuration>
+                    <failOnViolation>true</failOnViolation>
+                    <failsOnError>true</failsOnError>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
 </project>
 

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/ca0fae40/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/Base64.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/Base64.java b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/Base64.java
index aec84a3..42f028e 100644
--- a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/Base64.java
+++ b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/Base64.java
@@ -14,31 +14,27 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-/**
- * 
- */
 package org.apache.eagle.common;
 
-import java.io.UnsupportedEncodingException;
-
 import javax.xml.bind.DatatypeConverter;
+import java.io.UnsupportedEncodingException;
 
 public class Base64 {
 
-	public static String decode(String salted) {
-		try {
-			return new String(DatatypeConverter.parseBase64Binary(salted), "UTF-8");
-		} catch (UnsupportedEncodingException e) {
-			throw new RuntimeException("UTF-8 must be supported", e);
-		}
-	}
+    public static String decode(String salted) {
+        try {
+            return new String(DatatypeConverter.parseBase64Binary(salted), "UTF-8");
+        } catch (UnsupportedEncodingException e) {
+            throw new RuntimeException("UTF-8 must be supported", e);
+        }
+    }
 
-	public static String encode(String plain) {
-		try {
-			return DatatypeConverter.printBase64Binary(plain.getBytes("UTF-8"));
-		} catch (UnsupportedEncodingException e) {
-			throw new RuntimeException("UTF-8 must be supported", e);
-		}
-	}
+    public static String encode(String plain) {
+        try {
+            return DatatypeConverter.printBase64Binary(plain.getBytes("UTF-8"));
+        } catch (UnsupportedEncodingException e) {
+            throw new RuntimeException("UTF-8 must be supported", e);
+        }
+    }
 
 }

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/ca0fae40/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/ByteUtil.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/ByteUtil.java b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/ByteUtil.java
index c1d4976..909279c 100644
--- a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/ByteUtil.java
+++ b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/ByteUtil.java
@@ -17,135 +17,135 @@
 package org.apache.eagle.common;
 
 public class ByteUtil {
-	
-	public static double bytesToDouble(byte[] bytes, int offset){
-		return Double.longBitsToDouble(bytesToLong(bytes, offset));
-	}
-	
-	public static double bytesToDouble(byte[] bytes){
-		return Double.longBitsToDouble(bytesToLong(bytes));
-	}
-	
-	public static void doubleToBytes(double v, byte[] bytes){
-		doubleToBytes(v, bytes, 0);
-	}
-	
-	public static void doubleToBytes(double v, byte[] bytes, int offset){
-		longToBytes(Double.doubleToLongBits(v), bytes, offset);
-	}
-	
-	public static byte[] doubleToBytes(double v){
-		return longToBytes(Double.doubleToLongBits(v));
-	}
-	
-	public static long bytesToLong(byte[] bytes){
-		return bytesToLong(bytes, 0);
-	}
-	
-	public static long bytesToLong(byte[] bytes, int offset){
-		long value = 0;
-		for(int i=0; i<8; i++){
-			value <<= 8;
-			value |= (bytes[i+offset] & 0xFF);
-		}
-		return value;
-	}
-	
-	public static void longToBytes(long v, byte[] bytes){
-		longToBytes(v, bytes, 0);
-	}
-	
-	public static void longToBytes(long v, byte[] bytes, int offset){
-		long tmp = v;
-		for(int i=0; i<8; i++){
-			bytes[offset + 7 - i] = (byte)(tmp & 0xFF);
-			tmp >>= 8;
-		}
-	}
-	
-	public static byte[] longToBytes(long v){
-		long tmp = v;
-		byte[] b = new byte[8];
-		for(int i=0; i<8; i++){
-			b[7-i] = (byte)(tmp & 0xFF);
-			tmp >>= 8;
-		}
-		return b;
-	}
-	
-	public static int bytesToInt(byte[] bytes){
-		return bytesToInt(bytes, 0);
-	}
-	
-	public static int bytesToInt(byte[] bytes, int offset){
-		int value = 0;
-		for(int i=0; i<4; i++){
-			value <<= 8;
-			value |= (bytes[i+offset] & 0xFF);
-		}
-		return value;
-	}
-	
-	public static void intToBytes(int v, byte[] bytes){
-		intToBytes(v, bytes, 0);
-	}
-	
-	public static void intToBytes(int v, byte[] bytes, int offset){
-		int tmp = v;
-		for(int i=0; i<4; i++){
-			bytes[offset + 3 - i] = (byte)(tmp & 0xFF);
-			tmp >>= 8;
-		}
-	}
-
-	public static byte[] intToBytes(int v){
-		int tmp = v;
-		byte[] b = new byte[4];
-		for(int i=0; i<4; i++){
-			b[3-i] = (byte)(tmp & 0xFF);
-			tmp >>= 8;
-		}
-		return b;
-	}
-
-	//////
-	
-	public static short bytesToShort(byte[] bytes){
-		return bytesToShort(bytes, 0);
-	}
-	
-	public static short bytesToShort(byte[] bytes, int offset){
-		short value = 0;
-		for(int i=0; i < 2; i++){
-			value <<= 8;
-			value |= (bytes[i+offset] & 0xFF);
-		}
-		return value;
-	}
-	
-	public static void shortToBytes(short v, byte[] bytes){
-		shortToBytes(v, bytes, 0);
-	}
-	
-	public static void shortToBytes(short v, byte[] bytes, int offset){
-		int tmp = v;
-		for(int i=0; i < 2; i++){
-			bytes[offset + 1 - i] = (byte)(tmp & 0xFF);
-			tmp >>= 8;
-		}
-	}
-
-	public static byte[] shortToBytes(short v){
-		int tmp = v;
-		byte[] b = new byte[2];
-		for(int i=0; i<2; i++){
-			b[1-i] = (byte)(tmp & 0xFF);
-			tmp >>= 8;
-		}
-		return b;
-	}
-
-	public static byte[] concat(byte[]... arrays) {
+
+    public static double bytesToDouble(byte[] bytes, int offset) {
+        return Double.longBitsToDouble(bytesToLong(bytes, offset));
+    }
+
+    public static double bytesToDouble(byte[] bytes) {
+        return Double.longBitsToDouble(bytesToLong(bytes));
+    }
+
+    public static void doubleToBytes(double v, byte[] bytes) {
+        doubleToBytes(v, bytes, 0);
+    }
+
+    public static void doubleToBytes(double v, byte[] bytes, int offset) {
+        longToBytes(Double.doubleToLongBits(v), bytes, offset);
+    }
+
+    public static byte[] doubleToBytes(double v) {
+        return longToBytes(Double.doubleToLongBits(v));
+    }
+
+    public static long bytesToLong(byte[] bytes) {
+        return bytesToLong(bytes, 0);
+    }
+
+    public static long bytesToLong(byte[] bytes, int offset) {
+        long value = 0;
+        for (int i = 0; i < 8; i++) {
+            value <<= 8;
+            value |= (bytes[i + offset] & 0xFF);
+        }
+        return value;
+    }
+
+    public static void longToBytes(long v, byte[] bytes) {
+        longToBytes(v, bytes, 0);
+    }
+
+    public static void longToBytes(long v, byte[] bytes, int offset) {
+        long tmp = v;
+        for (int i = 0; i < 8; i++) {
+            bytes[offset + 7 - i] = (byte) (tmp & 0xFF);
+            tmp >>= 8;
+        }
+    }
+
+    public static byte[] longToBytes(long v) {
+        long tmp = v;
+        byte[] b = new byte[8];
+        for (int i = 0; i < 8; i++) {
+            b[7 - i] = (byte) (tmp & 0xFF);
+            tmp >>= 8;
+        }
+        return b;
+    }
+
+    public static int bytesToInt(byte[] bytes) {
+        return bytesToInt(bytes, 0);
+    }
+
+    public static int bytesToInt(byte[] bytes, int offset) {
+        int value = 0;
+        for (int i = 0; i < 4; i++) {
+            value <<= 8;
+            value |= (bytes[i + offset] & 0xFF);
+        }
+        return value;
+    }
+
+    public static void intToBytes(int v, byte[] bytes) {
+        intToBytes(v, bytes, 0);
+    }
+
+    public static void intToBytes(int v, byte[] bytes, int offset) {
+        int tmp = v;
+        for (int i = 0; i < 4; i++) {
+            bytes[offset + 3 - i] = (byte) (tmp & 0xFF);
+            tmp >>= 8;
+        }
+    }
+
+    public static byte[] intToBytes(int v) {
+        int tmp = v;
+        byte[] b = new byte[4];
+        for (int i = 0; i < 4; i++) {
+            b[3 - i] = (byte) (tmp & 0xFF);
+            tmp >>= 8;
+        }
+        return b;
+    }
+
+    //////
+
+    public static short bytesToShort(byte[] bytes) {
+        return bytesToShort(bytes, 0);
+    }
+
+    public static short bytesToShort(byte[] bytes, int offset) {
+        short value = 0;
+        for (int i = 0; i < 2; i++) {
+            value <<= 8;
+            value |= (bytes[i + offset] & 0xFF);
+        }
+        return value;
+    }
+
+    public static void shortToBytes(short v, byte[] bytes) {
+        shortToBytes(v, bytes, 0);
+    }
+
+    public static void shortToBytes(short v, byte[] bytes, int offset) {
+        int tmp = v;
+        for (int i = 0; i < 2; i++) {
+            bytes[offset + 1 - i] = (byte) (tmp & 0xFF);
+            tmp >>= 8;
+        }
+    }
+
+    public static byte[] shortToBytes(short v) {
+        int tmp = v;
+        byte[] b = new byte[2];
+        for (int i = 0; i < 2; i++) {
+            b[1 - i] = (byte) (tmp & 0xFF);
+            tmp >>= 8;
+        }
+        return b;
+    }
+
+    public static byte[] concat(byte[]... arrays) {
         int length = 0;
         for (byte[] array : arrays) {
             length += array.length;
@@ -158,21 +158,21 @@ public class ByteUtil {
         }
         return result;
     }
-	
-//    public static void main(String[] args){ 
-//    	int a = "ThreadName".hashCode();
-//    	byte[] b = intToBytes(a);
-//    	byte[] c = intToBytes(1676687583);
-//    	String s = new String(b);
-//    	System.out.println(s);
-    	
-//    	byte[] d = intToBytes(8652353);
-//    	System.out.println(bytesToInt(d));
-    	
-//    	byte[] e = longToBytes(12131513513l);
-//    	System.out.println(bytesToLong(e));
-//    	if(12131513513l == bytesToLong(e)){
-//    		System.out.println("yes");
-//    	}
-//    }
+
+    public static void main(String[] args) {
+        int a = "ThreadName".hashCode();
+        byte[] b = intToBytes(a);
+        byte[] c = intToBytes(1676687583);
+        String s = new String(b);
+        System.out.println(s);
+
+        byte[] d = intToBytes(8652353);
+        System.out.println(bytesToInt(d));
+
+        byte[] e = longToBytes(12131513513L);
+        System.out.println(bytesToLong(e));
+        if (12131513513L == bytesToLong(e)) {
+            System.out.println("yes");
+        }
+    }
 }

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/ca0fae40/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/CircularArrayList.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/CircularArrayList.java b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/CircularArrayList.java
index 49695e5..ccb7b65 100644
--- a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/CircularArrayList.java
+++ b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/CircularArrayList.java
@@ -20,45 +20,45 @@ import java.util.AbstractList;
 import java.util.RandomAccess;
 
 /**
- * Circular array implementation
+ * Circular array implementation.
  *
  * @param <E>
  */
 public class CircularArrayList<E> extends AbstractList<E> implements RandomAccess {
-  
+
     private final E[] buf; // a List implementing RandomAccess
     private int head = 0;
     private int tail = 0;
     private boolean full = false;
-  
+
     public CircularArrayList(E[] array) {
         buf = array;
         full = (buf.length == 0);
     }
-  
+
     public int capacity() {
         return buf.length;
     }
-    
+
     public int head() {
-    	return head;
+        return head;
     }
-    
+
     public int tail() {
-    	return tail;
+        return tail;
     }
-    
+
     public boolean isFull() {
-    	return full;
+        return full;
     }
-    
+
     @Override
     public void clear() {
         head = 0;
         tail = 0;
         full = false;
         for (int i = 0; i < buf.length; ++i) {
-        	buf[i] = null;
+            buf[i] = null;
         }
     }
 
@@ -69,7 +69,7 @@ public class CircularArrayList<E> extends AbstractList<E> implements RandomAcces
         }
         return m;
     }
-  
+
     // This method is O(n) but will never be called if the
     // CircularArrayList is used in its typical/intended role.
     private void shiftBlock(int startIndex, int endIndex) {
@@ -78,25 +78,25 @@ public class CircularArrayList<E> extends AbstractList<E> implements RandomAcces
             set(i + 1, get(i));
         }
     }
-    
+
     public int find(E e) {
-    	final int size = size();
-    	for (int i = 0; i < size; ++i) {
-    		if (e.equals(get(i))) {
-    			return i;
-    		}
-    	}
-    	return -1;
+        final int size = size();
+        for (int i = 0; i < size; ++i) {
+            if (e.equals(get(i))) {
+                return i;
+            }
+        }
+        return -1;
     }
-  
+
     @Override
     public int size() {
-    	if (full) {
-    		return buf.length;
-    	}
+        if (full) {
+            return buf.length;
+        }
         return tail - head + (tail < head ? buf.length : 0);
     }
-  
+
     @Override
     public E get(int i) {
         if (i < 0 || i >= size()) {
@@ -104,21 +104,21 @@ public class CircularArrayList<E> extends AbstractList<E> implements RandomAcces
         }
         return buf[wrapIndex(head + i)];
     }
-  
+
     @Override
     public E set(int i, E e) {
         if (i < 0 || i >= size()) {
             throw new IndexOutOfBoundsException();
         }
-        return buf[wrapIndex(head + i)] =  e;
+        return buf[wrapIndex(head + i)] = e;
     }
-  
+
     @Override
     public void add(int i, E e) {
         int s = size();
         if (s == buf.length) {
             throw new IllegalStateException("Cannot add element."
-                    + " CircularArrayList is filled to capacity.");
+                + " CircularArrayList is filled to capacity.");
         }
         full = (s + 1 == buf.length);
         if (i < 0 || i > s) {
@@ -130,7 +130,7 @@ public class CircularArrayList<E> extends AbstractList<E> implements RandomAcces
         }
         set(i, e);
     }
-  
+
     @Override
     public E remove(int i) {
         int s = size();
@@ -141,7 +141,7 @@ public class CircularArrayList<E> extends AbstractList<E> implements RandomAcces
         if (i > 0) {
             shiftBlock(0, i);
         }
-    	buf[head] = null;
+        buf[head] = null;
         head = wrapIndex(head + 1);
         full = false;
         return e;

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/ca0fae40/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/CircularArrayListSortedSet.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/CircularArrayListSortedSet.java b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/CircularArrayListSortedSet.java
index ef47624..0dc6ab3 100644
--- a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/CircularArrayListSortedSet.java
+++ b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/CircularArrayListSortedSet.java
@@ -22,85 +22,85 @@ import java.util.List;
 
 public class CircularArrayListSortedSet<E> {
 
-	private final CircularArrayList<E> list;
+    private final CircularArrayList<E> list;
     private final Comparator<? super E> comparator;
 
-	public CircularArrayListSortedSet(E[] array) {
-		this.list = new CircularArrayList<E>(array);
-		this.comparator = null;
-	}
-	
-	public CircularArrayListSortedSet(E[] array, Comparator<? super E> comparator) {
-		this.list = new CircularArrayList<E>(array);
-		this.comparator = comparator;
-	}
-	
+    public CircularArrayListSortedSet(E[] array) {
+        this.list = new CircularArrayList<E>(array);
+        this.comparator = null;
+    }
+
+    public CircularArrayListSortedSet(E[] array, Comparator<? super E> comparator) {
+        this.list = new CircularArrayList<E>(array);
+        this.comparator = comparator;
+    }
+
     public int capacity() {
         return list.capacity();
     }
-    
+
     public int head() {
-    	return list.head();
+        return list.head();
     }
-    
+
     public int tail() {
-    	return list.tail();
+        return list.tail();
     }
-    
+
     public boolean isFull() {
-    	return list.isFull();
+        return list.isFull();
     }
-  
+
     public void clear() {
-    	list.clear();
+        list.clear();
     }
-    
+
     public int size() {
-    	return list.size();
+        return list.size();
     }
-  
+
     public E get(int i) {
         return list.get(i);
     }
-    
+
     @SuppressWarnings("unchecked")
-	public int binarySearch(E e) {
-    	if (comparator != null) {
-    		return Collections.binarySearch(list, e, comparator);
-    	} else {
-    		return Collections.binarySearch((List<? extends Comparable<? super E>>)list, e);
-    	}
+    public int binarySearch(E e) {
+        if (comparator != null) {
+            return Collections.binarySearch(list, e, comparator);
+        } else {
+            return Collections.binarySearch((List<? extends Comparable<? super E>>) list, e);
+        }
     }
-    
+
     public int replace(E e) {
-    	int index = binarySearch(e);
-    	if (index < 0) {
-    		return -1;
-    	}
-    	list.set(index, e);
-    	return index;
+        int index = binarySearch(e);
+        if (index < 0) {
+            return -1;
+        }
+        list.set(index, e);
+        return index;
     }
-  
+
     public int insert(E e) {
-    	int index = binarySearch(e);
-    	if (index > 0) {
-    		return -1;
-    	}
-    	index = 0 - index - 1;
-    	list.add(index, e);
-    	return index;
+        int index = binarySearch(e);
+        if (index > 0) {
+            return -1;
+        }
+        index = 0 - index - 1;
+        list.add(index, e);
+        return index;
     }
-  
+
     public E remove(int i) {
-    	return list.remove(i);
+        return list.remove(i);
     }
-    
+
     public int remove(E e) {
-    	final int index = binarySearch(e);
-    	if (index > 0) {
-        	list.remove(index);
-        	return index;
-    	}
-    	return -1;
+        final int index = binarySearch(e);
+        if (index > 0) {
+            list.remove(index);
+            return index;
+        }
+        return -1;
     }
 }

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/ca0fae40/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/DateTimeUtil.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/DateTimeUtil.java b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/DateTimeUtil.java
index c21d2bc..74b733d 100644
--- a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/DateTimeUtil.java
+++ b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/DateTimeUtil.java
@@ -36,6 +36,7 @@ public class DateTimeUtil {
     public static final long ONEHOUR = 1L * 60L * 60L * 1000L;
     public static final long ONEDAY = 24L * 60L * 60L * 1000L;
     private static TimeZone CURRENT_TIME_ZONE;
+
     static {
         Config config = ConfigFactory.load();
         CURRENT_TIME_ZONE = TimeZone.getTimeZone((config.hasPath(EagleConfigConstants.EAGLE_TIME_ZONE)
@@ -151,10 +152,10 @@ public class DateTimeUtil {
 
     //For mapr
     //exp: 2015-06-06T10:44:22.800Z
-    public static long maprhumanDateToMilliseconds(String date) throws ParseException{
-        date = date.replace('T',' ');
-        date = date.replace('Z',' ');
-        date = date.replace('.',',');
+    public static long maprhumanDateToMilliseconds(String date) throws ParseException {
+        date = date.replace('T', ' ');
+        date = date.replace('Z', ' ');
+        date = date.replace('.', ',');
         SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss,SSS ");
         sdf.setTimeZone(CURRENT_TIME_ZONE);
         Date d = sdf.parse(date);

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/ca0fae40/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/EagleBase64Wrapper.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/EagleBase64Wrapper.java b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/EagleBase64Wrapper.java
index e31ef99..65f858c 100644
--- a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/EagleBase64Wrapper.java
+++ b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/EagleBase64Wrapper.java
@@ -19,14 +19,14 @@ package org.apache.eagle.common;
 import org.apache.commons.net.util.Base64;
 
 /**
- * wrap base64 encoding and decoding, so reduce the confuse of using many Base64 methods. 
+ * wrap base64 encoding and decoding, so reduce the confuse of using many Base64 methods.
  */
 public class EagleBase64Wrapper {
-	public static String encodeByteArray2URLSafeString(byte[] bytes){
-		return Base64.encodeBase64URLSafeString(bytes);
-	}
-	
-	public static byte[] decode(String input){
-		return Base64.decodeBase64(input);
-	}
+    public static String encodeByteArray2URLSafeString(byte[] bytes) {
+        return Base64.encodeBase64URLSafeString(bytes);
+    }
+
+    public static byte[] decode(String input) {
+        return Base64.decodeBase64(input);
+    }
 }

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/ca0fae40/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/EagleExceptionWrapper.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/EagleExceptionWrapper.java b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/EagleExceptionWrapper.java
index 4ab2b78..74bbe2c 100644
--- a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/EagleExceptionWrapper.java
+++ b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/EagleExceptionWrapper.java
@@ -25,7 +25,7 @@ public class EagleExceptionWrapper {
     }
 
     public static String wrap(Exception ex, int maxdepth) {
-        if(ex == null) {
+        if (ex == null) {
             return null;
         }
         int d = maxdepth;

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/ca0fae40/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/Environment.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/Environment.java b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/Environment.java
index dd69ed5..2350a44 100644
--- a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/Environment.java
+++ b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/Environment.java
@@ -17,7 +17,7 @@
 package org.apache.eagle.common;
 
 public enum Environment {
-	dev,
-	test,
-	prod,
+    dev,
+    test,
+    prod,
 }

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/ca0fae40/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/OS.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/OS.java b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/OS.java
index 05e8db1..029f298 100644
--- a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/OS.java
+++ b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/OS.java
@@ -18,24 +18,24 @@ package org.apache.eagle.common;
 
 public class OS {
 
-	private final static String os = System.getProperty("os.name")
-			.toLowerCase();
+    private static final String os = System.getProperty("os.name")
+        .toLowerCase();
 
-	public static boolean isWindows() {
-		return (os.indexOf("win") >= 0);
-	}
+    public static boolean isWindows() {
+        return (os.indexOf("win") >= 0);
+    }
 
-	public static boolean isMac() {
-		return (os.indexOf("mac") >= 0);
-	}
+    public static boolean isMac() {
+        return (os.indexOf("mac") >= 0);
+    }
 
-	public static boolean isUnix() {
-		return (os.indexOf("nix") >= 0 || os.indexOf("nux") >= 0 || os
-				.indexOf("aix") > 0);
-	}
+    public static boolean isUnix() {
+        return (os.indexOf("nix") >= 0 || os.indexOf("nux") >= 0 || os
+            .indexOf("aix") > 0);
+    }
 
-	public static boolean isSolaris() {
-		return (os.indexOf("sunos") >= 0);
-	}
+    public static boolean isSolaris() {
+        return (os.indexOf("sunos") >= 0);
+    }
 
 }

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/ca0fae40/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/SerializableUtils.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/SerializableUtils.java b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/SerializableUtils.java
index c5823ea..ee1c330 100644
--- a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/SerializableUtils.java
+++ b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/SerializableUtils.java
@@ -27,100 +27,100 @@ import java.io.*;
 /**
  * Utilities for working with Serializables.
  *
- * Derived from "com.google.cloud.dataflow.sdk.util.SerializableUtils":
+ * <p>Derived from "com.google.cloud.dataflow.sdk.util.SerializableUtils":
  * https://github.com/apache/incubator-beam/blob/master/sdks/java/core/src/main/java/com/google/cloud/dataflow/sdk/util/SerializableUtils.java
  */
 public class SerializableUtils {
-  /**
-   * Serializes the argument into an array of bytes, and returns it.
-   *
-   * @throws IllegalArgumentException if there are errors when serializing
-   */
-  public static byte[] serializeToCompressedByteArray(Object value) {
-    try {
-      ByteArrayOutputStream buffer = new ByteArrayOutputStream();
-      try (ObjectOutputStream oos = new ObjectOutputStream(new SnappyOutputStream(buffer))) {
-        oos.writeObject(value);
-      }
-      return buffer.toByteArray();
-    } catch (IOException exn) {
-      throw new IllegalArgumentException(
-          "unable to serialize " + value,
-          exn);
+    /**
+     * Serializes the argument into an array of bytes, and returns it.
+     *
+     * @throws IllegalArgumentException if there are errors when serializing
+     */
+    public static byte[] serializeToCompressedByteArray(Object value) {
+        try {
+            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
+            try (ObjectOutputStream oos = new ObjectOutputStream(new SnappyOutputStream(buffer))) {
+                oos.writeObject(value);
+            }
+            return buffer.toByteArray();
+        } catch (IOException exn) {
+            throw new IllegalArgumentException(
+                "unable to serialize " + value,
+                exn);
+        }
     }
-  }
 
-  /**
-   * Serializes the argument into an array of bytes, and returns it.
-   *
-   * @throws IllegalArgumentException if there are errors when serializing
-   */
-  public static byte[] serializeToByteArray(Object value) {
-    try {
-      ByteArrayOutputStream buffer = new ByteArrayOutputStream();
-      try (ObjectOutputStream oos = new ObjectOutputStream(buffer)) {
-        oos.writeObject(value);
-      }
-      return buffer.toByteArray();
-    } catch (IOException exn) {
-      throw new IllegalArgumentException("unable to serialize " + value, exn);
+    /**
+     * Serializes the argument into an array of bytes, and returns it.
+     *
+     * @throws IllegalArgumentException if there are errors when serializing
+     */
+    public static byte[] serializeToByteArray(Object value) {
+        try {
+            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
+            try (ObjectOutputStream oos = new ObjectOutputStream(buffer)) {
+                oos.writeObject(value);
+            }
+            return buffer.toByteArray();
+        } catch (IOException exn) {
+            throw new IllegalArgumentException("unable to serialize " + value, exn);
+        }
     }
-  }
 
-  /**
-   * Deserializes an object from the given array of bytes, e.g., as
-   * serialized using {@link #serializeToCompressedByteArray}, and returns it.
-   *
-   * @throws IllegalArgumentException if there are errors when
-   * deserializing, using the provided description to identify what
-   * was being deserialized
-   */
-  public static Object deserializeFromByteArray(byte[] encodedValue,
-                                                          String description) {
-    try {
-      try (ObjectInputStream ois = new ObjectInputStream(new ByteArrayInputStream(encodedValue))) {
-        return ois.readObject();
-      }
-    } catch (IOException | ClassNotFoundException exn) {
-      throw new IllegalArgumentException(
-          "unable to deserialize " + description,
-          exn);
+    /**
+     * Deserializes an object from the given array of bytes, e.g., as
+     * serialized using {@link #serializeToCompressedByteArray}, and returns it.
+     *
+     * @throws IllegalArgumentException if there are errors when
+     *                                  deserializing, using the provided description to identify what
+     *                                  was being deserialized
+     */
+    public static Object deserializeFromByteArray(byte[] encodedValue,
+                                                  String description) {
+        try {
+            try (ObjectInputStream ois = new ObjectInputStream(new ByteArrayInputStream(encodedValue))) {
+                return ois.readObject();
+            }
+        } catch (IOException | ClassNotFoundException exn) {
+            throw new IllegalArgumentException(
+                "unable to deserialize " + description,
+                exn);
+        }
     }
-  }
 
-  /**
-   * Deserializes an object from the given array of bytes, e.g., as
-   * serialized using {@link #serializeToCompressedByteArray}, and returns it.
-   *
-   * @throws IllegalArgumentException if there are errors when
-   * deserializing, using the provided description to identify what
-   * was being deserialized
-   */
-  public static Object deserializeFromCompressedByteArray(byte[] encodedValue,
-                                                          String description) {
-    try {
-      try (ObjectInputStream ois = new ObjectInputStream(
-          new SnappyInputStream(new ByteArrayInputStream(encodedValue)))) {
-        return ois.readObject();
-      }
-    } catch (IOException | ClassNotFoundException exn) {
-      throw new IllegalArgumentException(
-          "unable to deserialize " + description,
-          exn);
+    /**
+     * Deserializes an object from the given array of bytes, e.g., as
+     * serialized using {@link #serializeToCompressedByteArray}, and returns it.
+     *
+     * @throws IllegalArgumentException if there are errors when
+     *                                  deserializing, using the provided description to identify what
+     *                                  was being deserialized
+     */
+    public static Object deserializeFromCompressedByteArray(byte[] encodedValue,
+                                                            String description) {
+        try {
+            try (ObjectInputStream ois = new ObjectInputStream(
+                new SnappyInputStream(new ByteArrayInputStream(encodedValue)))) {
+                return ois.readObject();
+            }
+        } catch (IOException | ClassNotFoundException exn) {
+            throw new IllegalArgumentException(
+                "unable to deserialize " + description,
+                exn);
+        }
     }
-  }
 
-  public static <T extends Serializable> T ensureSerializable(T value) {
-    @SuppressWarnings("unchecked")
-    T copy = (T) deserializeFromCompressedByteArray(serializeToCompressedByteArray(value),
-        value.toString());
-    return copy;
-  }
+    public static <T extends Serializable> T ensureSerializable(T value) {
+        @SuppressWarnings("unchecked")
+        T copy = (T) deserializeFromCompressedByteArray(serializeToCompressedByteArray(value),
+            value.toString());
+        return copy;
+    }
 
-  public static <T extends Serializable> T clone(T value) {
-    @SuppressWarnings("unchecked")
-    T copy = (T) deserializeFromCompressedByteArray(serializeToCompressedByteArray(value),
-        value.toString());
-    return copy;
-  }
+    public static <T extends Serializable> T clone(T value) {
+        @SuppressWarnings("unchecked")
+        T copy = (T) deserializeFromCompressedByteArray(serializeToCompressedByteArray(value),
+            value.toString());
+        return copy;
+    }
 }
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/ca0fae40/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/agg/AggregateResult.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/agg/AggregateResult.java b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/agg/AggregateResult.java
index bb0ac5d..5ce644f 100644
--- a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/agg/AggregateResult.java
+++ b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/agg/AggregateResult.java
@@ -30,25 +30,26 @@ public class AggregateResult {
     private Object[] data;
     private Map<String, Integer> colIndices;
     private List<String> colNames;
-    public AggregateResult(Object[] data, Map<String, Integer> colIndices, List<String> colNames){
+
+    public AggregateResult(Object[] data, Map<String, Integer> colIndices, List<String> colNames) {
         this.data = data;
         this.colIndices = colIndices;
         this.colNames = colNames;
     }
 
-    public Object get(int index){
+    public Object get(int index) {
         return data[index];
     }
 
-    public Object get(String fieldName){
+    public Object get(String fieldName) {
         int index = colIndices.get(fieldName);
         return get(index);
     }
 
-    public String toString(){
+    public String toString() {
         StringBuilder sb = new StringBuilder();
         sb.append("{");
-        for(int i=0; i<data.length; i++){
+        for (int i = 0; i < data.length; i++) {
             sb.append(colNames.get(i));
             sb.append("=");
             sb.append(data[i]);

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/ca0fae40/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/agg/SiddhiAggregator.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/agg/SiddhiAggregator.java b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/agg/SiddhiAggregator.java
index d0b3987..cbe0ff9 100644
--- a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/agg/SiddhiAggregator.java
+++ b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/agg/SiddhiAggregator.java
@@ -37,18 +37,19 @@ public class SiddhiAggregator {
     private TimeBatchWindowSpec spec;
     private StreamDefinition sd;
     private InputHandler input;
-    public SiddhiAggregator(TimeBatchWindowSpec spec, StreamDefinition sd, final AggregateHandler handler){
+
+    public SiddhiAggregator(TimeBatchWindowSpec spec, StreamDefinition sd, final AggregateHandler handler) {
         this.spec = spec;
         this.sd = sd;
 
         Map<String, Integer> colIndices = new HashMap<>();
         List<String> colNames = new ArrayList<>();
         int i = 0;
-        for(String col : spec.groupby.cols){
+        for (String col : spec.groupby.cols) {
             colIndices.put(col, i++);
             colNames.add(col);
         }
-        for(Agg agg : spec.aggs){
+        for (Agg agg : spec.aggs) {
             colIndices.put(agg.alias, i++);
             colNames.add(agg.alias);
         }
@@ -63,7 +64,7 @@ public class SiddhiAggregator {
             @Override
             public void receive(long timeStamp, Event[] inEvents, Event[] removeEvents) {
                 List<AggregateResult> rows = new ArrayList<AggregateResult>();
-                for(Event e : inEvents) {
+                for (Event e : inEvents) {
                     AggregateResult result = new AggregateResult(e.getData(), colIndices, colNames);
                     rows.add(result);
                 }
@@ -73,28 +74,29 @@ public class SiddhiAggregator {
         runtime.start();
     }
 
-    public void add(Object[] data) throws Exception{
+    public void add(Object[] data) throws Exception {
         input.send(data);
     }
 
     /**
      * example siddhi query
-     *   String ql = "define stream s (host string, timestamp long, metric string, site string, value double);" +
-          "@info(name='query') " +
-          " from s[metric == \"missingblocks\"]#window.externalTimeBatch(timestamp, 1 min, 0) select host, count(value) as avg group by host insert into tmp; ";
+     * String ql = "define stream s (host string, timestamp long, metric string, site string, value double);" +
+     * "@info(name='query') " +
+     * " from s[metric == \"missingblocks\"]#window.externalTimeBatch(timestamp, 1 min, 0) select host, count(value) as avg group by host insert into tmp; ";
+     *
      * @return
      */
-    private String buildSiddhiAggQuery(){
+    private String buildSiddhiAggQuery() {
         StringBuilder sb = new StringBuilder();
         sb.append("define stream s(");
-        if(sd.columns == null || sd.columns.size() == 0) {
+        if (sd.columns == null || sd.columns.size() == 0) {
             throw new IllegalStateException("input stream should contains at least one column");
         }
-        for(Column col : sd.columns){
+        for (Column col : sd.columns) {
             appendColumnDef(sb, col);
             sb.append(",");
         }
-        sb.deleteCharAt(sb.length()-1);
+        sb.deleteCharAt(sb.length() - 1);
         sb.append(");");
 
         sb.append(" @info(name='query') ");
@@ -108,14 +110,14 @@ public class SiddhiAggregator {
         sb.append(spec.start);
         sb.append(")");
         sb.append(" select ");
-        for(String gbField : spec.groupby.cols){
+        for (String gbField : spec.groupby.cols) {
             sb.append(gbField);
             sb.append(",");
         }
-        if(spec.aggs == null){
+        if (spec.aggs == null) {
             throw new IllegalStateException("at least one aggregate function should be present");
         }
-        for(Agg agg : spec.aggs){
+        for (Agg agg : spec.aggs) {
             sb.append(agg.function);
             sb.append("(");
             sb.append(agg.field);
@@ -125,7 +127,7 @@ public class SiddhiAggregator {
         }
         sb.deleteCharAt(sb.length() - 1);
         sb.append(" group by ");
-        for(String gbField : spec.groupby.cols){
+        for (String gbField : spec.groupby.cols) {
             sb.append(gbField);
             sb.append(",");
         }
@@ -135,7 +137,7 @@ public class SiddhiAggregator {
         return sb.toString();
     }
 
-    private void appendColumnDef(StringBuilder sb, Column col){
+    private void appendColumnDef(StringBuilder sb, Column col) {
         sb.append(col.name);
         sb.append(" ");
         sb.append(col.type);

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/ca0fae40/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/agg/StreamAggregator.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/agg/StreamAggregator.java b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/agg/StreamAggregator.java
index 37802fd..2977be3 100644
--- a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/agg/StreamAggregator.java
+++ b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/agg/StreamAggregator.java
@@ -27,10 +27,11 @@ import java.util.List;
  * Since 8/4/16.
  */
 public class StreamAggregator {
-    public static StreamAggregatorBuilder builder(){
+    public static StreamAggregatorBuilder builder() {
         return new StreamAggregatorBuilder();
     }
-    public static class StreamAggregatorBuilder{
+
+    public static class StreamAggregatorBuilder {
         private Groupby gb = new Groupby();
         private String windowDuration;
         private long start;
@@ -39,28 +40,34 @@ public class StreamAggregator {
         private String timestampColumn;
         private StreamDefinition sd = new StreamDefinition();
         private AggregateHandler handler;
-        public StreamAggregatorBuilder groupby(String ... gbFields){
+
+        public StreamAggregatorBuilder groupby(String... gbFields) {
             gb.cols = Arrays.asList(gbFields);
             return this;
         }
-        public StreamAggregatorBuilder window(String windowDuration){
+
+        public StreamAggregatorBuilder window(String windowDuration) {
             window(windowDuration, 0);
             return this;
         }
-        public StreamAggregatorBuilder window(String windowDuration, long start){
+
+        public StreamAggregatorBuilder window(String windowDuration, long start) {
             this.windowDuration = windowDuration;
             this.start = start;
             return this;
         }
-        public StreamAggregatorBuilder timeColumn(String timestampColumn){
+
+        public StreamAggregatorBuilder timeColumn(String timestampColumn) {
             this.timestampColumn = timestampColumn;
             return this;
         }
-        public StreamAggregatorBuilder filter(String filter){
+
+        public StreamAggregatorBuilder filter(String filter) {
             this.filter = filter;
             return this;
         }
-        public StreamAggregatorBuilder agg(String function, String field, String alias){
+
+        public StreamAggregatorBuilder agg(String function, String field, String alias) {
             Agg agg = new Agg();
             agg.function = function;
             agg.field = field;
@@ -68,25 +75,29 @@ public class StreamAggregator {
             aggs.add(agg);
             return this;
         }
-        public StreamAggregatorBuilder columnDef(String colName, String colType){
+
+        public StreamAggregatorBuilder columnDef(String colName, String colType) {
             Column col = new Column();
             col.name = colName;
             col.type = colType;
-            if(sd.columns == null){
+            if (sd.columns == null) {
                 sd.columns = new ArrayList<>();
             }
             sd.columns.add(col);
             return this;
         }
-        public StreamAggregatorBuilder streamDef(StreamDefinition sd){
+
+        public StreamAggregatorBuilder streamDef(StreamDefinition sd) {
             this.sd = sd;
             return this;
         }
-        public StreamAggregatorBuilder aggregateHandler(AggregateHandler handler){
+
+        public StreamAggregatorBuilder aggregateHandler(AggregateHandler handler) {
             this.handler = handler;
             return this;
         }
-        public SiddhiAggregator build(){
+
+        public SiddhiAggregator build() {
             TimeBatchWindowSpec spec = new TimeBatchWindowSpec();
             spec.aggs = aggs;
             spec.filter = filter;

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/ca0fae40/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/authentication/User.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/authentication/User.java b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/authentication/User.java
index 85388cd..e967624 100644
--- a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/authentication/User.java
+++ b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/authentication/User.java
@@ -24,7 +24,8 @@ public class User implements Principal, Serializable {
     private String username = "Unauthenticated";
     private Set<String> roles = null;
 
-    public User() {}
+    public User() {
+    }
 
     public User(String username) {
         this.username = username;

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/ca0fae40/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/config/AbstractConfigOptionParser.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/config/AbstractConfigOptionParser.java b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/config/AbstractConfigOptionParser.java
index a8a4b69..b2845a4 100644
--- a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/config/AbstractConfigOptionParser.java
+++ b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/config/AbstractConfigOptionParser.java
@@ -25,47 +25,47 @@ import org.apache.commons.cli.Parser;
 
 import java.util.Map;
 
-/**
- * @since 8/22/15
- */
+
 public abstract class AbstractConfigOptionParser {
 
     // private final Options options;
     private final Parser parser;
 
-    public AbstractConfigOptionParser(){
+    public AbstractConfigOptionParser() {
         parser = parser();
         //options = options();
     }
 
     /**
+     * Get parser.
      * @return Parser
      */
     protected abstract Parser parser();
 
     /**
+     * Get options.
      * @return Options
      */
     protected abstract Options options();
 
-    public abstract Map<String,String> parseConfig(String[] arguments) throws ParseException;
+    public abstract Map<String, String> parseConfig(String[] arguments) throws ParseException;
 
     /**
-     * Load config as system properties
+     * Load config as system properties.
      *
      * @param arguments command line arguments
      * @throws ParseException
      */
     public Config load(String[] arguments) throws ParseException {
-        Map<String,String> configProps = parseConfig(arguments);
-        for(Map.Entry<String,String> entry:configProps.entrySet()){
-            System.setProperty(entry.getKey(),entry.getValue());
+        Map<String, String> configProps = parseConfig(arguments);
+        for (Map.Entry<String, String> entry : configProps.entrySet()) {
+            System.setProperty(entry.getKey(), entry.getValue());
         }
         System.setProperty("config.trace", "loads");
         return ConfigFactory.load();
     }
 
     public CommandLine parse(String[] arguments) throws ParseException {
-        return this.parser.parse(this.options(),arguments);
+        return this.parser.parse(this.options(), arguments);
     }
 }
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/ca0fae40/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/config/ConfigOptionParser.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/config/ConfigOptionParser.java b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/config/ConfigOptionParser.java
index 3cb42ca..6c75a29 100644
--- a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/config/ConfigOptionParser.java
+++ b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/config/ConfigOptionParser.java
@@ -23,7 +23,7 @@ import java.util.Map;
 
 
 public class ConfigOptionParser extends AbstractConfigOptionParser {
-    private final static String CONFIG_OPT_FLAG = "D";
+    private static final String CONFIG_OPT_FLAG = "D";
 
     @Override
     protected Parser parser() {
@@ -38,27 +38,27 @@ public class ConfigOptionParser extends AbstractConfigOptionParser {
     }
 
     @Override
-    public Map<String,String> parseConfig(String[] arguments) throws ParseException {
+    public Map<String, String> parseConfig(String[] arguments) throws ParseException {
         CommandLine cmd = parse(arguments);
         return parseCommand(cmd);
     }
 
-    protected Map<String,String> parseCommand(CommandLine cmd) throws ParseException {
-        Map<String,String> result = new HashMap<>();
-        if(cmd.hasOption(CONFIG_OPT_FLAG)){
+    protected Map<String, String> parseCommand(CommandLine cmd) throws ParseException {
+        Map<String, String> result = new HashMap<>();
+        if (cmd.hasOption(CONFIG_OPT_FLAG)) {
             String[] values = cmd.getOptionValues(CONFIG_OPT_FLAG);
-            for(String value:values){
+            for (String value : values) {
                 int eqIndex = value.indexOf("=");
-                if(eqIndex>0 && eqIndex<value.length()){
-                    String k = value.substring(0,eqIndex);
-                    String v = value.substring(eqIndex+1,value.length());
-                    if(result.containsKey(k)){
-                        throw new ParseException("Duplicated "+CONFIG_OPT_FLAG+" "+value);
-                    }else{
-                        result.put(k,v);
+                if (eqIndex > 0 && eqIndex < value.length()) {
+                    String k = value.substring(0, eqIndex);
+                    String v = value.substring(eqIndex + 1, value.length());
+                    if (result.containsKey(k)) {
+                        throw new ParseException("Duplicated " + CONFIG_OPT_FLAG + " " + value);
+                    } else {
+                        result.put(k, v);
                     }
-                }else{
-                    throw new ParseException("Invalid format: -"+CONFIG_OPT_FLAG+" "+value+", required: -"+CONFIG_OPT_FLAG+" key=value");
+                } else {
+                    throw new ParseException("Invalid format: -" + CONFIG_OPT_FLAG + " " + value + ", required: -" + CONFIG_OPT_FLAG + " key=value");
                 }
             }
         }

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/ca0fae40/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/config/EagleConfig.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/config/EagleConfig.java b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/config/EagleConfig.java
index 8b4b959..f85d161 100755
--- a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/config/EagleConfig.java
+++ b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/config/EagleConfig.java
@@ -16,9 +16,9 @@
  */
 package org.apache.eagle.common.config;
 
+import com.typesafe.config.Config;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.hbase.client.HTableInterface;
-import com.typesafe.config.Config;
 
 import java.util.TimeZone;
 import java.util.concurrent.ThreadPoolExecutor;

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/ca0fae40/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/config/EagleConfigConstants.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/config/EagleConfigConstants.java b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/config/EagleConfigConstants.java
index 693041d..c700c61 100644
--- a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/config/EagleConfigConstants.java
+++ b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/config/EagleConfigConstants.java
@@ -44,7 +44,7 @@ public final class EagleConfigConstants {
     public static final int DEFAULT_SERVICE_PORT = 8080;
     public static final String DEFAULT_ZOOKEEPER_ZNODE_PARENT = "/hbase-unsecure";
 
-    public static final String EAGLE_PROPS="eagleProps";
+    public static final String EAGLE_PROPS = "eagleProps";
     public static final String EAGLE_SERVICE = "eagleService";
     public static final String HOST = "host";
     public static final String PORT = "port";

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/ca0fae40/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/config/EagleConfigFactory.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/config/EagleConfigFactory.java b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/config/EagleConfigFactory.java
index 2bd144d..65d93e9 100755
--- a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/config/EagleConfigFactory.java
+++ b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/config/EagleConfigFactory.java
@@ -103,6 +103,7 @@ public class EagleConfigFactory implements EagleConfig {
             ? config.getString(EagleConfigConstants.SERVICE_ZOOKEEPER_ZNODE_PARENT) : EagleConfigConstants.DEFAULT_ZOOKEEPER_ZNODE_PARENT;
         String clientIPCPoolSize = getString(config, EagleConfigConstants.SERVICE_HBASE_CLIENT_IPC_POOL_SIZE, "10");
         this.hbaseConf = HBaseConfiguration.create();
+        this.hbaseConf.set("hbase.client.ipc.pool.size", clientIPCPoolSize);
 
         if (this.zkQuorum != null) {
             this.hbaseConf.set("hbase.zookeeper.quorum", this.zkQuorum);
@@ -118,18 +119,22 @@ public class EagleConfigFactory implements EagleConfig {
             this.hbaseConf.set("zookeeper.znode.parent", EagleConfigConstants.DEFAULT_ZOOKEEPER_ZNODE_PARENT);
         }
 
-        this.hbaseConf.set("hbase.client.ipc.pool.size", clientIPCPoolSize);
 
         this.eagleServiceHost = config.hasPath(EagleConfigConstants.SERVICE_HOST) ? config.getString(EagleConfigConstants.SERVICE_HOST) : EagleConfigConstants.DEFAULT_SERVICE_HOST;
         this.storageType = config.hasPath(EagleConfigConstants.SERVICE_STORAGE_TYPE) ? config.getString(EagleConfigConstants.SERVICE_STORAGE_TYPE) : EagleConfigConstants.DEFAULT_STORAGE_TYPE;
         this.isCoprocessorEnabled = config.hasPath(EagleConfigConstants.SERVICE_COPROCESSOR_ENABLED) && config.getBoolean(EagleConfigConstants.SERVICE_COPROCESSOR_ENABLED);
         this.eagleServicePort = config.hasPath(EagleConfigConstants.SERVICE_PORT) ? config.getInt(EagleConfigConstants.SERVICE_PORT) : EagleConfigConstants.DEFAULT_SERVICE_PORT;
-        this.tableNamePrefixedWithEnv = config.hasPath(EagleConfigConstants.SERVICE_TABLE_NAME_PREFIXED_WITH_ENVIRONMENT) && config.getBoolean(EagleConfigConstants.SERVICE_TABLE_NAME_PREFIXED_WITH_ENVIRONMENT);
-        this.hbaseClientScanCacheSize = config.hasPath(EagleConfigConstants.SERVICE_HBASE_CLIENT_SCAN_CACHE_SIZE) ? config.getInt(EagleConfigConstants.SERVICE_HBASE_CLIENT_SCAN_CACHE_SIZE) : hbaseClientScanCacheSize;
+        this.tableNamePrefixedWithEnv = config.hasPath(EagleConfigConstants.SERVICE_TABLE_NAME_PREFIXED_WITH_ENVIRONMENT) && config.getBoolean(EagleConfigConstants
+            .SERVICE_TABLE_NAME_PREFIXED_WITH_ENVIRONMENT);
+        this.hbaseClientScanCacheSize = config.hasPath(EagleConfigConstants.SERVICE_HBASE_CLIENT_SCAN_CACHE_SIZE) ? config.getInt(EagleConfigConstants.SERVICE_HBASE_CLIENT_SCAN_CACHE_SIZE) :
+            hbaseClientScanCacheSize;
         // initilize eagle service thread pool for parallel execution of hbase scan etc.
-        int threadPoolCoreSize = config.hasPath(EagleConfigConstants.SERVICE_THREADPOOL_CORE_SIZE) ? config.getInt(EagleConfigConstants.SERVICE_THREADPOOL_CORE_SIZE) : EagleConfigConstants.DEFAULT_THREAD_POOL_CORE_SIZE;
-        int threadPoolMaxSize = config.hasPath(EagleConfigConstants.SERVICE_THREADPOOL_MAX_SIZE) ? config.getInt(EagleConfigConstants.SERVICE_THREADPOOL_MAX_SIZE) : EagleConfigConstants.DEFAULT_THREAD_POOL_MAX_SIZE;
-        long threadPoolShrinkTime = config.hasPath(EagleConfigConstants.SERVICE_THREADPOOL_SHRINK_SIZE) ? config.getLong(EagleConfigConstants.SERVICE_THREADPOOL_SHRINK_SIZE) : EagleConfigConstants.DEFAULT_THREAD_POOL_SHRINK_TIME;
+        int threadPoolCoreSize = config.hasPath(EagleConfigConstants.SERVICE_THREADPOOL_CORE_SIZE) ? config.getInt(EagleConfigConstants.SERVICE_THREADPOOL_CORE_SIZE) : EagleConfigConstants
+            .DEFAULT_THREAD_POOL_CORE_SIZE;
+        int threadPoolMaxSize = config.hasPath(EagleConfigConstants.SERVICE_THREADPOOL_MAX_SIZE) ? config.getInt(EagleConfigConstants.SERVICE_THREADPOOL_MAX_SIZE) : EagleConfigConstants
+            .DEFAULT_THREAD_POOL_MAX_SIZE;
+        long threadPoolShrinkTime = config.hasPath(EagleConfigConstants.SERVICE_THREADPOOL_SHRINK_SIZE) ? config.getLong(EagleConfigConstants.SERVICE_THREADPOOL_SHRINK_SIZE) : EagleConfigConstants
+            .DEFAULT_THREAD_POOL_SHRINK_TIME;
         this.isServiceAuditingEnabled = config.hasPath(EagleConfigConstants.SERVICE_AUDITING_ENABLED) && config.getBoolean(EagleConfigConstants.SERVICE_AUDITING_ENABLED);
 
         this.executor = new ThreadPoolExecutor(threadPoolCoreSize, threadPoolMaxSize, threadPoolShrinkTime, TimeUnit.MILLISECONDS, new LinkedBlockingQueue<Runnable>());

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/ca0fae40/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/config/EagleConfigHelper.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/config/EagleConfigHelper.java b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/config/EagleConfigHelper.java
index 2f15cd6..f79c340 100644
--- a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/config/EagleConfigHelper.java
+++ b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/config/EagleConfigHelper.java
@@ -32,12 +32,12 @@ public class EagleConfigHelper {
     }
 
     public static String getServiceUser(Config config) {
-        return config.hasPath(EagleConfigConstants.EAGLE_SERVICE + "." + EagleConfigConstants.USERNAME) ?
-               config.getString(EagleConfigConstants.EAGLE_SERVICE + "." + EagleConfigConstants.USERNAME) : null;
+        return config.hasPath(EagleConfigConstants.EAGLE_SERVICE + "." + EagleConfigConstants.USERNAME) ? config.getString(EagleConfigConstants.EAGLE_SERVICE + "." + EagleConfigConstants.USERNAME)
+            : null;
     }
 
     public static String getServicePassword(Config config) {
-        return config.hasPath(EagleConfigConstants.EAGLE_SERVICE + "." + EagleConfigConstants.PASSWORD) ?
-                config.getString(EagleConfigConstants.EAGLE_SERVICE + "." + EagleConfigConstants.PASSWORD) : null;
+        return config.hasPath(EagleConfigConstants.EAGLE_SERVICE + "." + EagleConfigConstants.PASSWORD) ? config.getString(EagleConfigConstants.EAGLE_SERVICE + "." + EagleConfigConstants.PASSWORD)
+            : null;
     }
 }

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/ca0fae40/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/function/ThrowableConsumer2.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/function/ThrowableConsumer2.java b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/function/ThrowableConsumer2.java
index 330d48e..c78e770 100644
--- a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/function/ThrowableConsumer2.java
+++ b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/function/ThrowableConsumer2.java
@@ -17,6 +17,6 @@ package org.apache.eagle.common.function;
  * limitations under the License.
  */
 @FunctionalInterface
-public interface ThrowableConsumer2<T1,T2, E extends Throwable> {
-    void accept(T1 o1,T2 o2) throws E;
+public interface ThrowableConsumer2<T1, T2, E extends Throwable> {
+    void accept(T1 o1, T2 o2) throws E;
 }
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/ca0fae40/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/function/ThrowableFunction.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/function/ThrowableFunction.java b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/function/ThrowableFunction.java
index 562abea..b91f927 100644
--- a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/function/ThrowableFunction.java
+++ b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/function/ThrowableFunction.java
@@ -1,7 +1,5 @@
 package org.apache.eagle.common.function;
 
-import java.sql.SQLException;
-
 /**
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/ca0fae40/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/metric/AlertContext.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/metric/AlertContext.java b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/metric/AlertContext.java
index f8b11c3..bf719fc 100644
--- a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/metric/AlertContext.java
+++ b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/metric/AlertContext.java
@@ -24,71 +24,70 @@ import java.util.HashMap;
 import java.util.Map;
 
 /**
- * not thread safe
+ * not thread safe.
  */
-public class AlertContext implements Serializable{
-	private static final Logger LOG = org.slf4j.LoggerFactory.getLogger(AlertContext.class);
+public class AlertContext implements Serializable {
+    private static final Logger LOG = org.slf4j.LoggerFactory.getLogger(AlertContext.class);
 
-	private Map<String, String> properties = new HashMap<String, String>();
-	
-	public AlertContext(){
-	}
-	
-	public AlertContext(AlertContext context){
-		this.properties = new HashMap<String, String>(context.properties);
-	}
-	
-	public String removeProperty(String name)
-	{
-		return properties.remove(name);
-	}
-	
-	public AlertContext addProperty(String name, String value){
-		properties.put(name, value);
-		return this;
-	}
+    private Map<String, String> properties = new HashMap<String, String>();
 
-	public AlertContext addAll(Map<String,String> propHash){
-		this.properties.putAll(propHash);
-		return this;
-	}
+    public AlertContext() {
+    }
 
-	public String toJsonString(){
-		ObjectMapper objectMapper = new ObjectMapper();
-		try {
-			return objectMapper.writeValueAsString(properties);
-		}catch(Exception ex){
-			LOG.error("fail converting alertcontext into string", ex);
-			return null;
-		}
-	}
+    public AlertContext(AlertContext context) {
+        this.properties = new HashMap<String, String>(context.properties);
+    }
 
-	public static AlertContext fromJsonString(String json){
-		ObjectMapper objectMapper = new ObjectMapper();
-		try{
-			Map m = objectMapper.readValue(json, Map.class);
-			AlertContext c = new AlertContext();
-			c.addAll(m);
-			return c;
-		}catch(Exception ex){
-			LOG.error("fail converting string into alertcontext", ex);
-			return null;
-		}
-	}
+    public String removeProperty(String name) {
+        return properties.remove(name);
+    }
 
-	public String getProperty(String name){
-		return properties.get(name);
-	}
-	
-	public String toString(){
-		return properties.toString();
-	}
+    public AlertContext addProperty(String name, String value) {
+        properties.put(name, value);
+        return this;
+    }
 
-	public Map<String, String> getProperties(){
-		return properties;
-	}
-	
-	public void setProperties(Map<String, String> properties){
-		this.properties = properties;
-	}
+    public AlertContext addAll(Map<String, String> propHash) {
+        this.properties.putAll(propHash);
+        return this;
+    }
+
+    public String toJsonString() {
+        ObjectMapper objectMapper = new ObjectMapper();
+        try {
+            return objectMapper.writeValueAsString(properties);
+        } catch (Exception ex) {
+            LOG.error("fail converting alertcontext into string", ex);
+            return null;
+        }
+    }
+
+    public static AlertContext fromJsonString(String json) {
+        ObjectMapper objectMapper = new ObjectMapper();
+        try {
+            Map m = objectMapper.readValue(json, Map.class);
+            AlertContext c = new AlertContext();
+            c.addAll(m);
+            return c;
+        } catch (Exception ex) {
+            LOG.error("fail converting string into alertcontext", ex);
+            return null;
+        }
+    }
+
+    public String getProperty(String name) {
+        return properties.get(name);
+    }
+
+    public String toString() {
+        return properties.toString();
+    }
+
+    public Map<String, String> getProperties() {
+        return properties;
+    }
+
+    public void setProperties(Map<String, String> properties) {
+        this.properties = properties;
+    }
 }

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/ca0fae40/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/module/CommonGuiceModule.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/module/CommonGuiceModule.java b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/module/CommonGuiceModule.java
index c44ca01..86a3ea1 100644
--- a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/module/CommonGuiceModule.java
+++ b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/module/CommonGuiceModule.java
@@ -20,7 +20,7 @@ import com.google.inject.AbstractModule;
 import com.google.inject.Singleton;
 import com.typesafe.config.Config;
 
-public class CommonGuiceModule extends AbstractModule{
+public class CommonGuiceModule extends AbstractModule {
     @Override
     protected void configure() {
         bind(Config.class).toProvider(ConfigServiceProvider.class).in(Singleton.class);

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/ca0fae40/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/module/GlobalScope.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/module/GlobalScope.java b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/module/GlobalScope.java
index e7c73e4..ee2f435 100644
--- a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/module/GlobalScope.java
+++ b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/module/GlobalScope.java
@@ -17,6 +17,7 @@
 package org.apache.eagle.common.module;
 
 /**
- * Global Scope
+ * Global Scope.
  */
-public enum GlobalScope implements ModuleScope {}
\ No newline at end of file
+public enum GlobalScope implements ModuleScope {
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/ca0fae40/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/module/GuiceJUnitRunner.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/module/GuiceJUnitRunner.java b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/module/GuiceJUnitRunner.java
index ce04058..d22195d 100644
--- a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/module/GuiceJUnitRunner.java
+++ b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/module/GuiceJUnitRunner.java
@@ -28,6 +28,7 @@ import java.util.List;
 
 public class GuiceJUnitRunner extends BlockJUnit4ClassRunner {
     private final Injector injector;
+
     public GuiceJUnitRunner(Class<?> klass) throws InitializationError {
         super(klass);
         injector = createInjectorFor(getModulesFor(klass));
@@ -43,14 +44,15 @@ public class GuiceJUnitRunner extends BlockJUnit4ClassRunner {
 
     /**
      * Create a Guice Injector for the class under test.
+     *
      * @param classes Guice Modules
      * @return A Guice Injector instance.
      * @throws InitializationError If couldn't instantiate a module.
      */
     private Injector createInjectorFor(final Class<?>[] classes)
-            throws InitializationError {
+        throws InitializationError {
         final List<Module> modules = new ArrayList<>();
-        if(classes!= null) {
+        if (classes != null) {
             for (final Class<?> module : Arrays.asList(classes)) {
                 try {
                     modules.add((Module) module.newInstance());
@@ -65,12 +67,13 @@ public class GuiceJUnitRunner extends BlockJUnit4ClassRunner {
     /**
      * Get the list of Guice Modules request by GuiceModules annotation in the
      * class under test.
+     *
      * @param klass Class under test.
      * @return A Class Array of Guice Modules required by this class.
      * @throws InitializationError If the annotation is not present.
      */
     private Class<?>[] getModulesFor(final Class<?> klass)
-            throws InitializationError {
+        throws InitializationError {
         final Modules annotation = klass.getAnnotation(Modules.class);
         if (annotation == null) {
             return null;

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/ca0fae40/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/module/ModuleRegistry.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/module/ModuleRegistry.java b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/module/ModuleRegistry.java
index 8ae3984..49c1548 100644
--- a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/module/ModuleRegistry.java
+++ b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/module/ModuleRegistry.java
@@ -21,32 +21,38 @@ import com.google.inject.Module;
 import java.util.List;
 
 /**
- * Module Registry Repository
+ * Module Registry Repository.
  */
 public interface ModuleRegistry {
+
     /**
+     * Get Register.
      * @param modules
      */
-    void register(Class<? extends ModuleScope> scope, Module ... modules);
+    void register(Class<? extends ModuleScope> scope, Module... modules);
+
+    default void register(Module... modules) {
+        register(GlobalScope.class, modules);
+    }
 
     /**
-     *
+     * Get Module With Scope.
      * @param moduleScope
      * @return
      */
     List<Module> getModules(Class<? extends ModuleScope> moduleScope);
 
     /**
-     * @return
+     * Get All Modules.
+     * @return all modules
      */
-    List<Class<? extends ModuleScope>> getScopes();
+    List<Module> getModules();
 
     /**
-     * @return all modules
+     * Get All Scopes.
+     * @return
      */
-    List<Module> getModules();
+    List<Class<? extends ModuleScope>> getScopes();
+
 
-    default void register(Module ... modules){
-        register(GlobalScope.class,modules);
-    }
 }
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/ca0fae40/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/module/ModuleRegistryImpl.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/module/ModuleRegistryImpl.java b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/module/ModuleRegistryImpl.java
index 3c45dac..4f13e50 100644
--- a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/module/ModuleRegistryImpl.java
+++ b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/module/ModuleRegistryImpl.java
@@ -24,7 +24,8 @@ import java.util.List;
 
 public class ModuleRegistryImpl implements ModuleRegistry {
     private final LinkedListMultimap<Class<? extends ModuleScope>, Module> moduleRepo;
-    public ModuleRegistryImpl(){
+
+    public ModuleRegistryImpl() {
         moduleRepo = LinkedListMultimap.create();
     }
 
@@ -39,12 +40,13 @@ public class ModuleRegistryImpl implements ModuleRegistry {
     }
 
     @Override
-    public List<Class<? extends ModuleScope>> getScopes() {
-        return Arrays.asList((Class<? extends ModuleScope>[]) moduleRepo.keys().toArray());
+    public List<Module> getModules() {
+        return moduleRepo.values();
     }
 
     @Override
-    public List<Module> getModules() {
-        return moduleRepo.values();
+    public List<Class<? extends ModuleScope>> getScopes() {
+        return Arrays.asList((Class<? extends ModuleScope>[]) moduleRepo.keys().toArray());
     }
+
 }
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/ca0fae40/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/module/ModuleScope.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/module/ModuleScope.java b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/module/ModuleScope.java
index b385fba..b79a112 100644
--- a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/module/ModuleScope.java
+++ b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/module/ModuleScope.java
@@ -21,18 +21,20 @@ import com.google.inject.Module;
 import java.util.List;
 
 /**
+ * Module Scope.
  * @see ModuleRegistry
  */
 public interface ModuleScope {
     /**
+     * Get Modules.
      * @param registry ModuleRegistry
      * @return
      */
-    default List<Module> getModules(ModuleRegistry registry){
+    default List<Module> getModules(ModuleRegistry registry) {
         return registry.getModules(this.getClass());
     }
 
-    default String getName(){
+    default String getName() {
         return getClass().getName();
     }
 }
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/ca0fae40/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/module/Modules.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/module/Modules.java b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/module/Modules.java
index 8292e08..0f53948 100644
--- a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/module/Modules.java
+++ b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/module/Modules.java
@@ -17,11 +17,8 @@
 package org.apache.eagle.common.module;
 
 import com.google.inject.AbstractModule;
-import java.lang.annotation.ElementType;
-import java.lang.annotation.Inherited;
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-import java.lang.annotation.Target;
+
+import java.lang.annotation.*;
 
 /**
  * Defines the Guice Modules in use in the test class.

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/ca0fae40/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/service/HadoopAccountService.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/service/HadoopAccountService.java b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/service/HadoopAccountService.java
index 0b4893a..925142d 100644
--- a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/service/HadoopAccountService.java
+++ b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/service/HadoopAccountService.java
@@ -19,5 +19,5 @@ package org.apache.eagle.common.service;
 import java.util.List;
 
 public interface HadoopAccountService {
-	public List<HadoopUser> searchByUsername(List<String> username);
+    public List<HadoopUser> searchByUsername(List<String> username);
 }
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-eagle/blob/ca0fae40/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/service/HadoopUser.java
----------------------------------------------------------------------
diff --git a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/service/HadoopUser.java b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/service/HadoopUser.java
index 2e84f77..5c9cf80 100644
--- a/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/service/HadoopUser.java
+++ b/eagle-core/eagle-common/src/main/java/org/apache/eagle/common/service/HadoopUser.java
@@ -19,26 +19,27 @@ package org.apache.eagle.common.service;
 import java.util.List;
 
 /**
+ * Hadoop User.
  * @since : 7/11/14,2014
  */
 public class HadoopUser {
-	public String getUsername() {
-		return username;
-	}
+    public String getUsername() {
+        return username;
+    }
 
-	public void setUsername(String username) {
-		this.username = username;
-	}
+    public void setUsername(String username) {
+        this.username = username;
+    }
 
-	protected String username;
+    protected String username;
 
-	public List<String> getEmail() {
-		return email;
-	}
+    public List<String> getEmail() {
+        return email;
+    }
 
-	public void setEmail(List<String> emails) {
-		this.email = emails;
-	}
+    public void setEmail(List<String> emails) {
+        this.email = emails;
+    }
 
-	protected List<String> email;
+    protected List<String> email;
 }
\ No newline at end of file


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