add interpreter to navigation.html and remove extra spaces and lines

mfelgamal · mfelgamal · commit 75fc4f7eeb6d · 2016-09-23T13:51:41.000+02:00
diff --git a/beam/pom.xml b/beam/pom.xml
@@ -14,10 +14,7 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
-
-
-
-
+	
 	<parent>
 		<artifactId>zeppelin</artifactId>
 		<groupId>org.apache.zeppelin</groupId>
diff --git a/beam/src/main/java/org/apache/zeppelin/beam/StaticRepl.java b/beam/src/main/java/org/apache/zeppelin/beam/StaticRepl.java
@@ -84,8 +84,10 @@ public static String execute(String generatedClassName, String code) throws Exce
     }
 
     // if there isn't Main method, will retuen error
-    if (mainClassName == null)
+    if (mainClassName == null) {
+      LOGGER.error("Exception for Main method", "There isn't any class containing Main method.");
       throw new Exception("There isn't any class containing Main method.");
+    }
 
     // replace name of class containing Main method with generated name
     code = code.replace(mainClassName, generatedClassName);
@@ -150,22 +152,22 @@ public static String execute(String generatedClassName, String code) throws Exce
         LOGGER.error("Exception in Interpreter while Class not found", e);
         System.err.println("Class not found: " + e);
         throw new Exception(baosErr.toString());
-        
+
       } catch (NoSuchMethodException e) {
         LOGGER.error("Exception in Interpreter while No such method", e);
         System.err.println("No such method: " + e);
         throw new Exception(baosErr.toString());
-        
+
       } catch (IllegalAccessException e) {
         LOGGER.error("Exception in Interpreter while Illegal access", e);
         System.err.println("Illegal access: " + e);
         throw new Exception(baosErr.toString());
-        
+
       } catch (InvocationTargetException e) {
         LOGGER.error("Exception in Interpreter while Invocation target", e);
         System.err.println("Invocation target: " + e);
         throw new Exception(baosErr.toString());
-        
+
       } finally {
 
         System.out.flush();
diff --git a/docs/_includes/themes/zeppelin/_navigation.html b/docs/_includes/themes/zeppelin/_navigation.html
@@ -47,6 +47,7 @@
                 <li role="separator" class="divider"></li>
                 <li class="title"><span><b>Available Interpreters</b><span></li>
                 <li><a href="{{BASE_PATH}}/interpreter/alluxio.html">Alluxio</a></li>
+                <li><a href="{{BASE_PATH}}/interpreter/beam.html">Beam</a></li>
                 <li><a href="{{BASE_PATH}}/interpreter/bigquery.html">BigQuery</a></li>
                 <li><a href="{{BASE_PATH}}/interpreter/cassandra.html">Cassandra</a></li>
                 <li><a href="{{BASE_PATH}}/interpreter/elasticsearch.html">Elasticsearch</a></li>
diff --git a/docs/interpreter/beam.md b/docs/interpreter/beam.md
@@ -26,12 +26,12 @@ limitations under the License.
 
 ## Overview
 [Apache Beam](http://beam.incubator.apache.org) is an open source unified platform for data processing pipelines. A pipeline can be build using one of the Beam SDKs.
-The execution of the pipeline is done by different Runners . Currently, Beam supports Apache Flink Runner, Apache Spark Runner, and Google Dataflow Runner.
+The execution of the pipeline is done by different Runners. Currently, Beam supports Apache Flink Runner, Apache Spark Runner, and Google Dataflow Runner.
 
 ## How to use
-Basically, you can write normal Beam java code where  you can determine the Runner. You should write the main method inside a  class becuase the interpreter invoke this main to execute the pipline. Unlike Zeppelin normal pattern, each paragraph is considered a separate job, there isn't any relation to any other paragraph.
+Basically, you can write normal Beam java code where you can determine the Runner. You should write the main method inside a class becuase the interpreter invoke this main to execute the pipline. Unlike Zeppelin normal pattern, each paragraph is considered a separate job, there isn't any relation to any other paragraph.
 
-The following is a demonstration of a  word count example
+The following is a demonstration of a word count example
 
 ```
 %beam
