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Posted to commits@zeppelin.apache.org by zj...@apache.org on 2018/02/08 04:46:21 UTC

zeppelin git commit: ZEPPELIN-3141. Fixed Checkstyle errors and warnings in the pig module

Repository: zeppelin
Updated Branches:
  refs/heads/master c6b73beae -> 7691b7f09


ZEPPELIN-3141. Fixed Checkstyle errors and warnings in the pig module

### What is this PR for?
Fixed the Checkstyle errors and warnings in the pig module.

### What type of PR is it?
Improvement

### Todos
* [ ] - Task

### What is the Jira issue?
* https://issues.apache.org/jira/browse/ZEPPELIN-3141

### How should this be tested?
* CI pass

### Screenshots (if appropriate)

### Questions:
* Does the licenses files need update? no
* Is there breaking changes for older versions? no
* Does this needs documentation? no

Author: Jan Hentschel <ja...@ultratendency.com>

Closes #2773 from HorizonNet/ZEPPELIN-3141 and squashes the following commits:

080fad5 [Jan Hentschel] ZEPPELIN-3141. Fixed Checkstyle errors and warnings in the pig module


Project: http://git-wip-us.apache.org/repos/asf/zeppelin/repo
Commit: http://git-wip-us.apache.org/repos/asf/zeppelin/commit/7691b7f0
Tree: http://git-wip-us.apache.org/repos/asf/zeppelin/tree/7691b7f0
Diff: http://git-wip-us.apache.org/repos/asf/zeppelin/diff/7691b7f0

Branch: refs/heads/master
Commit: 7691b7f09c6a2bd59f310656771d7cb7916a5a94
Parents: c6b73be
Author: Jan Hentschel <ja...@ultratendency.com>
Authored: Wed Feb 7 13:15:18 2018 +0100
Committer: Jeff Zhang <zj...@apache.org>
Committed: Thu Feb 8 12:46:15 2018 +0800

----------------------------------------------------------------------
 pig/pom.xml                                     |  7 +++++
 .../apache/zeppelin/pig/BasePigInterpreter.java | 12 ++++-----
 .../org/apache/zeppelin/pig/PigInterpreter.java | 15 ++++++-----
 .../zeppelin/pig/PigQueryInterpreter.java       | 16 +++++++-----
 .../apache/zeppelin/pig/PigScriptListener.java  |  4 +--
 .../java/org/apache/zeppelin/pig/PigUtils.java  | 24 ++---------------
 .../zeppelin/pig/PigInterpreterSparkTest.java   | 17 ++++++------
 .../apache/zeppelin/pig/PigInterpreterTest.java | 23 +++++++++--------
 .../zeppelin/pig/PigInterpreterTezTest.java     | 21 +++++++--------
 .../zeppelin/pig/PigQueryInterpreterTest.java   | 27 +++++++++++---------
 10 files changed, 82 insertions(+), 84 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/zeppelin/blob/7691b7f0/pig/pom.xml
----------------------------------------------------------------------
diff --git a/pig/pom.xml b/pig/pom.xml
index 4553b5c..571d198 100644
--- a/pig/pom.xml
+++ b/pig/pom.xml
@@ -190,6 +190,13 @@
                     <forkMode>always</forkMode>
                 </configuration>
             </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-checkstyle-plugin</artifactId>
+                <configuration>
+                    <skip>false</skip>
+                </configuration>
+            </plugin>
         </plugins>
     </build>
 </project>

http://git-wip-us.apache.org/repos/asf/zeppelin/blob/7691b7f0/pig/src/main/java/org/apache/zeppelin/pig/BasePigInterpreter.java
----------------------------------------------------------------------
diff --git a/pig/src/main/java/org/apache/zeppelin/pig/BasePigInterpreter.java b/pig/src/main/java/org/apache/zeppelin/pig/BasePigInterpreter.java
index 1fb2a69..9503aa7 100644
--- a/pig/src/main/java/org/apache/zeppelin/pig/BasePigInterpreter.java
+++ b/pig/src/main/java/org/apache/zeppelin/pig/BasePigInterpreter.java
@@ -23,10 +23,6 @@ import org.apache.pig.PigServer;
 import org.apache.pig.backend.BackendException;
 import org.apache.pig.backend.hadoop.executionengine.HExecutionEngine;
 import org.apache.pig.backend.hadoop.executionengine.Launcher;
-import org.apache.zeppelin.interpreter.Interpreter;
-import org.apache.zeppelin.interpreter.InterpreterContext;
-import org.apache.zeppelin.scheduler.Scheduler;
-import org.apache.zeppelin.scheduler.SchedulerFactory;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -35,12 +31,16 @@ import java.util.Properties;
 import java.util.Set;
 import java.util.concurrent.ConcurrentHashMap;
 
+import org.apache.zeppelin.interpreter.Interpreter;
+import org.apache.zeppelin.interpreter.InterpreterContext;
+import org.apache.zeppelin.scheduler.Scheduler;
+import org.apache.zeppelin.scheduler.SchedulerFactory;
+
 /**
  *
  */
 public abstract class BasePigInterpreter extends Interpreter {
-
-  private static Logger LOGGER = LoggerFactory.getLogger(BasePigInterpreter.class);
+  private static final Logger LOGGER = LoggerFactory.getLogger(BasePigInterpreter.class);
 
   protected ConcurrentHashMap<String, PigScriptListener> listenerMap = new ConcurrentHashMap<>();
 

http://git-wip-us.apache.org/repos/asf/zeppelin/blob/7691b7f0/pig/src/main/java/org/apache/zeppelin/pig/PigInterpreter.java
----------------------------------------------------------------------
diff --git a/pig/src/main/java/org/apache/zeppelin/pig/PigInterpreter.java b/pig/src/main/java/org/apache/zeppelin/pig/PigInterpreter.java
index 0f2d59b..4fc0676 100644
--- a/pig/src/main/java/org/apache/zeppelin/pig/PigInterpreter.java
+++ b/pig/src/main/java/org/apache/zeppelin/pig/PigInterpreter.java
@@ -22,23 +22,26 @@ import org.apache.commons.lang.exception.ExceptionUtils;
 import org.apache.pig.PigServer;
 import org.apache.pig.impl.logicalLayer.FrontendException;
 import org.apache.pig.tools.pigscript.parser.ParseException;
-import org.apache.pig.tools.pigstats.*;
-import org.apache.zeppelin.interpreter.InterpreterContext;
-import org.apache.zeppelin.interpreter.InterpreterResult;
-import org.apache.zeppelin.interpreter.InterpreterResult.Code;
+import org.apache.pig.tools.pigstats.PigStats;
+import org.apache.pig.tools.pigstats.ScriptState;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import java.io.File;
 import java.io.IOException;
 import java.io.PrintStream;
-import java.util.*;
+import java.util.Map;
+import java.util.Properties;
+
+import org.apache.zeppelin.interpreter.InterpreterContext;
+import org.apache.zeppelin.interpreter.InterpreterResult;
+import org.apache.zeppelin.interpreter.InterpreterResult.Code;
 
 /**
  * Pig interpreter for Zeppelin.
  */
 public class PigInterpreter extends BasePigInterpreter {
-  private static Logger LOGGER = LoggerFactory.getLogger(PigInterpreter.class);
+  private static final Logger LOGGER = LoggerFactory.getLogger(PigInterpreter.class);
 
   private PigServer pigServer;
   private boolean includeJobStats = false;

http://git-wip-us.apache.org/repos/asf/zeppelin/blob/7691b7f0/pig/src/main/java/org/apache/zeppelin/pig/PigQueryInterpreter.java
----------------------------------------------------------------------
diff --git a/pig/src/main/java/org/apache/zeppelin/pig/PigQueryInterpreter.java b/pig/src/main/java/org/apache/zeppelin/pig/PigQueryInterpreter.java
index da3d50e..364d412 100644
--- a/pig/src/main/java/org/apache/zeppelin/pig/PigQueryInterpreter.java
+++ b/pig/src/main/java/org/apache/zeppelin/pig/PigQueryInterpreter.java
@@ -15,10 +15,8 @@
  * limitations under the License.
  */
 
-
 package org.apache.zeppelin.pig;
 
-
 import org.apache.commons.lang.StringUtils;
 import org.apache.commons.lang.exception.ExceptionUtils;
 import org.apache.pig.PigServer;
@@ -28,8 +26,6 @@ import org.apache.pig.impl.logicalLayer.schema.Schema;
 import org.apache.pig.tools.pigscript.parser.ParseException;
 import org.apache.pig.tools.pigstats.PigStats;
 import org.apache.pig.tools.pigstats.ScriptState;
-import org.apache.zeppelin.interpreter.*;
-import org.apache.zeppelin.interpreter.InterpreterResult.Code;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -40,12 +36,20 @@ import java.util.Iterator;
 import java.util.List;
 import java.util.Properties;
 
+import org.apache.zeppelin.interpreter.Interpreter;
+import org.apache.zeppelin.interpreter.InterpreterContext;
+import org.apache.zeppelin.interpreter.InterpreterException;
+import org.apache.zeppelin.interpreter.InterpreterResult;
+import org.apache.zeppelin.interpreter.InterpreterResult.Code;
+import org.apache.zeppelin.interpreter.LazyOpenInterpreter;
+import org.apache.zeppelin.interpreter.ResultMessages;
+import org.apache.zeppelin.interpreter.WrappedInterpreter;
+
 /**
  *
  */
 public class PigQueryInterpreter extends BasePigInterpreter {
-
-  private static Logger LOGGER = LoggerFactory.getLogger(PigQueryInterpreter.class);
+  private static final Logger LOGGER = LoggerFactory.getLogger(PigQueryInterpreter.class);
   private static final String MAX_RESULTS = "zeppelin.pig.maxResult";
   private PigServer pigServer;
   private int maxResult;

http://git-wip-us.apache.org/repos/asf/zeppelin/blob/7691b7f0/pig/src/main/java/org/apache/zeppelin/pig/PigScriptListener.java
----------------------------------------------------------------------
diff --git a/pig/src/main/java/org/apache/zeppelin/pig/PigScriptListener.java b/pig/src/main/java/org/apache/zeppelin/pig/PigScriptListener.java
index 1f88b2e..8ff1bf8 100644
--- a/pig/src/main/java/org/apache/zeppelin/pig/PigScriptListener.java
+++ b/pig/src/main/java/org/apache/zeppelin/pig/PigScriptListener.java
@@ -15,7 +15,6 @@
  * limitations under the License.
  */
 
-
 package org.apache.zeppelin.pig;
 
 import org.apache.pig.impl.plan.OperatorPlan;
@@ -32,8 +31,7 @@ import java.util.Set;
  *
  */
 public class PigScriptListener implements PigProgressNotificationListener {
-
-  private static Logger LOGGER = LoggerFactory.getLogger(PigScriptListener.class);
+  private static final Logger LOGGER = LoggerFactory.getLogger(PigScriptListener.class);
 
   private Set<String> jobIds = new HashSet();
   private int progress;

http://git-wip-us.apache.org/repos/asf/zeppelin/blob/7691b7f0/pig/src/main/java/org/apache/zeppelin/pig/PigUtils.java
----------------------------------------------------------------------
diff --git a/pig/src/main/java/org/apache/zeppelin/pig/PigUtils.java b/pig/src/main/java/org/apache/zeppelin/pig/PigUtils.java
index 8fc69ed..1c48250 100644
--- a/pig/src/main/java/org/apache/zeppelin/pig/PigUtils.java
+++ b/pig/src/main/java/org/apache/zeppelin/pig/PigUtils.java
@@ -17,40 +17,21 @@
 
 package org.apache.zeppelin.pig;
 
-
 import org.apache.commons.io.IOUtils;
 import org.apache.commons.lang.StringUtils;
-import org.apache.commons.lang.exception.ExceptionUtils;
-import org.apache.pig.PigRunner;
-import org.apache.pig.backend.hadoop.executionengine.spark.plan.SparkOperator;
-import org.apache.pig.backend.hadoop.executionengine.tez.TezExecType;
-import org.apache.pig.tools.pigstats.InputStats;
-import org.apache.pig.tools.pigstats.JobStats;
-import org.apache.pig.tools.pigstats.OutputStats;
-import org.apache.pig.tools.pigstats.PigStats;
-import org.apache.pig.tools.pigstats.mapreduce.MRJobStats;
-import org.apache.pig.tools.pigstats.mapreduce.SimplePigStats;
-import org.apache.pig.tools.pigstats.spark.SparkJobStats;
-import org.apache.pig.tools.pigstats.spark.SparkPigStats;
-import org.apache.pig.tools.pigstats.spark.SparkScriptState;
-import org.apache.pig.tools.pigstats.tez.TezDAGStats;
-import org.apache.pig.tools.pigstats.tez.TezPigScriptStats;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import java.io.File;
 import java.io.FileWriter;
 import java.io.IOException;
-import java.lang.reflect.Field;
-import java.text.SimpleDateFormat;
-import java.util.*;
+import java.util.List;
 
 /**
  *
  */
 public class PigUtils {
-
-  private static Logger LOGGER = LoggerFactory.getLogger(PigUtils.class);
+  private static final Logger LOGGER = LoggerFactory.getLogger(PigUtils.class);
 
   protected static final String DATE_FORMAT = "yyyy-MM-dd HH:mm:ss";
 
@@ -66,5 +47,4 @@ public class PigUtils {
   public static File createTempPigScript(List<String> lines) throws IOException {
     return createTempPigScript(StringUtils.join(lines, "\n"));
   }
-
 }

http://git-wip-us.apache.org/repos/asf/zeppelin/blob/7691b7f0/pig/src/test/java/org/apache/zeppelin/pig/PigInterpreterSparkTest.java
----------------------------------------------------------------------
diff --git a/pig/src/test/java/org/apache/zeppelin/pig/PigInterpreterSparkTest.java b/pig/src/test/java/org/apache/zeppelin/pig/PigInterpreterSparkTest.java
index 43ade16..d25d6e2 100644
--- a/pig/src/test/java/org/apache/zeppelin/pig/PigInterpreterSparkTest.java
+++ b/pig/src/test/java/org/apache/zeppelin/pig/PigInterpreterSparkTest.java
@@ -16,12 +16,12 @@
  * limitations under the License.
  */
 
-
 package org.apache.zeppelin.pig;
 
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
 import org.apache.commons.io.IOUtils;
-import org.apache.zeppelin.interpreter.InterpreterContext;
-import org.apache.zeppelin.interpreter.InterpreterResult;
 import org.junit.After;
 import org.junit.Test;
 
@@ -30,9 +30,8 @@ import java.io.FileWriter;
 import java.io.IOException;
 import java.util.Properties;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
-
+import org.apache.zeppelin.interpreter.InterpreterContext;
+import org.apache.zeppelin.interpreter.InterpreterResult;
 
 public class PigInterpreterSparkTest {
   private PigInterpreter pigInterpreter;
@@ -86,7 +85,8 @@ public class PigInterpreterSparkTest {
     result = pigInterpreter.interpret(pigscript, context);
     assertEquals(InterpreterResult.Type.TEXT, result.message().get(0).getType());
     assertEquals(InterpreterResult.Code.ERROR, result.code());
-    assertTrue(result.message().get(0).getData().contains("Syntax error, unexpected symbol at or near 'a'"));
+    assertTrue(result.message().get(0).getData().contains(
+            "Syntax error, unexpected symbol at or near 'a'"));
 
     // syntax error
     pigscript = "a = load '" + tmpFile.getAbsolutePath() + "';"
@@ -133,7 +133,8 @@ public class PigInterpreterSparkTest {
     assertEquals(InterpreterResult.Type.TEXT, result.message().get(0).getType());
     assertEquals(InterpreterResult.Code.ERROR, result.code());
     // no job is launched, so no jobStats
-    assertTrue(result.message().get(0).getData().contains("Syntax error, unexpected symbol at or near 'a'"));
+    assertTrue(result.message().get(0).getData().contains(
+            "Syntax error, unexpected symbol at or near 'a'"));
 
     // execution error
     pigscript = "a = load 'invalid_path';"

http://git-wip-us.apache.org/repos/asf/zeppelin/blob/7691b7f0/pig/src/test/java/org/apache/zeppelin/pig/PigInterpreterTest.java
----------------------------------------------------------------------
diff --git a/pig/src/test/java/org/apache/zeppelin/pig/PigInterpreterTest.java b/pig/src/test/java/org/apache/zeppelin/pig/PigInterpreterTest.java
index ac13390..59ea753 100644
--- a/pig/src/test/java/org/apache/zeppelin/pig/PigInterpreterTest.java
+++ b/pig/src/test/java/org/apache/zeppelin/pig/PigInterpreterTest.java
@@ -16,16 +16,13 @@
  * limitations under the License.
  */
 
-
 package org.apache.zeppelin.pig;
 
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
 import org.apache.commons.io.IOUtils;
-import org.apache.zeppelin.interpreter.InterpreterContext;
-import org.apache.zeppelin.interpreter.InterpreterResult;
-import org.apache.zeppelin.interpreter.InterpreterResult.Code;
-import org.apache.zeppelin.interpreter.InterpreterResult.Type;
 import org.junit.After;
-import org.junit.Before;
 import org.junit.Test;
 
 import java.io.File;
@@ -33,8 +30,10 @@ import java.io.FileWriter;
 import java.io.IOException;
 import java.util.Properties;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
+import org.apache.zeppelin.interpreter.InterpreterContext;
+import org.apache.zeppelin.interpreter.InterpreterResult;
+import org.apache.zeppelin.interpreter.InterpreterResult.Code;
+import org.apache.zeppelin.interpreter.InterpreterResult.Type;
 
 public class PigInterpreterTest {
 
@@ -48,7 +47,7 @@ public class PigInterpreterTest {
     pigInterpreter = new PigInterpreter(properties);
     pigInterpreter.open();
     context = new InterpreterContext(null, "paragraph_id", null, null, null,
-        null, null, null, null, null, null,null, null);
+        null, null, null, null, null, null, null, null);
   }
 
   @After
@@ -89,7 +88,8 @@ public class PigInterpreterTest {
     result = pigInterpreter.interpret(pigscript, context);
     assertEquals(Type.TEXT, result.message().get(0).getType());
     assertEquals(Code.ERROR, result.code());
-    assertTrue(result.message().get(0).getData().contains("Syntax error, unexpected symbol at or near 'a'"));
+    assertTrue(result.message().get(0).getData().contains(
+            "Syntax error, unexpected symbol at or near 'a'"));
 
     // execution error
     pigscript = "a = load 'invalid_path';"
@@ -139,7 +139,8 @@ public class PigInterpreterTest {
     assertEquals(Code.ERROR, result.code());
     // no job is launched, so no jobStats
     assertTrue(!result.message().get(0).getData().contains("Counters:"));
-    assertTrue(result.message().get(0).getData().contains("Syntax error, unexpected symbol at or near 'a'"));
+    assertTrue(result.message().get(0).getData().contains(
+            "Syntax error, unexpected symbol at or near 'a'"));
 
     // execution error
     pigscript = "a = load 'invalid_path';"

http://git-wip-us.apache.org/repos/asf/zeppelin/blob/7691b7f0/pig/src/test/java/org/apache/zeppelin/pig/PigInterpreterTezTest.java
----------------------------------------------------------------------
diff --git a/pig/src/test/java/org/apache/zeppelin/pig/PigInterpreterTezTest.java b/pig/src/test/java/org/apache/zeppelin/pig/PigInterpreterTezTest.java
index 48f07bf..409502b 100644
--- a/pig/src/test/java/org/apache/zeppelin/pig/PigInterpreterTezTest.java
+++ b/pig/src/test/java/org/apache/zeppelin/pig/PigInterpreterTezTest.java
@@ -16,16 +16,13 @@
  * limitations under the License.
  */
 
-
 package org.apache.zeppelin.pig;
 
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
 import org.apache.commons.io.IOUtils;
-import org.apache.zeppelin.interpreter.InterpreterContext;
-import org.apache.zeppelin.interpreter.InterpreterResult;
-import org.apache.zeppelin.interpreter.InterpreterResult.Code;
-import org.apache.zeppelin.interpreter.InterpreterResult.Type;
 import org.junit.After;
-import org.junit.Before;
 import org.junit.Test;
 
 import java.io.File;
@@ -33,8 +30,10 @@ import java.io.FileWriter;
 import java.io.IOException;
 import java.util.Properties;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
+import org.apache.zeppelin.interpreter.InterpreterContext;
+import org.apache.zeppelin.interpreter.InterpreterResult;
+import org.apache.zeppelin.interpreter.InterpreterResult.Code;
+import org.apache.zeppelin.interpreter.InterpreterResult.Type;
 
 public class PigInterpreterTezTest {
 
@@ -94,7 +93,8 @@ public class PigInterpreterTezTest {
     result = pigInterpreter.interpret(pigscript, context);
     assertEquals(Type.TEXT, result.message().get(0).getType());
     assertEquals(Code.ERROR, result.code());
-    assertTrue(result.message().get(0).getData().contains("Syntax error, unexpected symbol at or near 'a'"));
+    assertTrue(result.message().get(0).getData().contains(
+            "Syntax error, unexpected symbol at or near 'a'"));
 
     // syntax error
     pigscript = "a = load '" + tmpFile.getAbsolutePath() + "';"
@@ -143,7 +143,8 @@ public class PigInterpreterTezTest {
     assertEquals(Code.ERROR, result.code());
     // no job is launched, so no jobStats
     assertTrue(!result.message().get(0).getData().contains("Vertex Stats"));
-    assertTrue(result.message().get(0).getData().contains("Syntax error, unexpected symbol at or near 'a'"));
+    assertTrue(result.message().get(0).getData().contains(
+            "Syntax error, unexpected symbol at or near 'a'"));
 
     // execution error
     pigscript = "a = load 'invalid_path';"

http://git-wip-us.apache.org/repos/asf/zeppelin/blob/7691b7f0/pig/src/test/java/org/apache/zeppelin/pig/PigQueryInterpreterTest.java
----------------------------------------------------------------------
diff --git a/pig/src/test/java/org/apache/zeppelin/pig/PigQueryInterpreterTest.java b/pig/src/test/java/org/apache/zeppelin/pig/PigQueryInterpreterTest.java
index ad395b5..2ca586b 100644
--- a/pig/src/test/java/org/apache/zeppelin/pig/PigQueryInterpreterTest.java
+++ b/pig/src/test/java/org/apache/zeppelin/pig/PigQueryInterpreterTest.java
@@ -18,15 +18,12 @@
 
 package org.apache.zeppelin.pig;
 
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
 import org.apache.commons.io.IOUtils;
-import org.apache.zeppelin.interpreter.Interpreter;
-import org.apache.zeppelin.interpreter.InterpreterContext;
-import org.apache.zeppelin.interpreter.InterpreterException;
-import org.apache.zeppelin.interpreter.InterpreterGroup;
-import org.apache.zeppelin.interpreter.InterpreterResult;
 import org.junit.After;
 import org.junit.Before;
-import org.junit.BeforeClass;
 import org.junit.Test;
 
 import java.io.File;
@@ -36,8 +33,11 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.Properties;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
+import org.apache.zeppelin.interpreter.Interpreter;
+import org.apache.zeppelin.interpreter.InterpreterContext;
+import org.apache.zeppelin.interpreter.InterpreterException;
+import org.apache.zeppelin.interpreter.InterpreterGroup;
+import org.apache.zeppelin.interpreter.InterpreterResult;
 
 /**
  *
@@ -93,7 +93,8 @@ public class PigQueryInterpreterTest {
     InterpreterResult result = pigInterpreter.interpret(pigscript, context);
     assertEquals(InterpreterResult.Type.TEXT, result.message().get(0).getType());
     assertEquals(InterpreterResult.Code.SUCCESS, result.code());
-    assertTrue(result.message().get(0).getData().contains("(andy,male,10)\n(peter,male,20)\n(amy,female,14)"));
+    assertTrue(result.message().get(0).getData().contains(
+            "(andy,male,10)\n(peter,male,20)\n(amy,female,14)"));
 
     // run single line query in PigQueryInterpreter
     String query = "foreach a generate name, age;";
@@ -117,11 +118,13 @@ public class PigQueryInterpreterTest {
     assertEquals("group\tcol_1\nmale\t2\nfemale\t1\n", result.message().get(0).getData());
 
     // syntax error in PigQueryInterpereter
-    query = "b = group a by invalid_column;\nforeach b generate group as gender, COUNT($1) as count;";
+    query = "b = group a by invalid_column;\nforeach b generate group as gender, " +
+            "COUNT($1) as count;";
     result = pigQueryInterpreter.interpret(query, context);
     assertEquals(InterpreterResult.Type.TEXT, result.message().get(0).getType());
     assertEquals(InterpreterResult.Code.ERROR, result.code());
-    assertTrue(result.message().get(0).getData().contains("Projected field [invalid_column] does not exist in schema"));
+    assertTrue(result.message().get(0).getData().contains(
+            "Projected field [invalid_column] does not exist in schema"));
 
     // execution error in PigQueryInterpreter
     query = "foreach a2 generate name, age;";
@@ -134,7 +137,7 @@ public class PigQueryInterpreterTest {
   @Test
   public void testMaxResult() throws IOException {
     StringBuilder content = new StringBuilder();
-    for (int i=0;i<30;++i) {
+    for (int i = 0; i < 30; ++i) {
       content.append(i + "\tname_" + i + "\n");
     }
     File tmpFile = File.createTempFile("zeppelin", "test");