CodeStyle formatting to conform to basic Checkstyle rules.

The code-style rules follow google style with some changes:

1. Increase line length from 100 to 120
2. Disable JavaDoc related checkstyles as this needs more manual work.

Both source and test code are checked for code-style

hoodie-spark/src/main/java/com/uber/hoodie/BaseAvroPayload.java

@@ -38,7 +38,6 @@ public abstract class BaseAvroPayload implements Serializable {
   protected final Comparable orderingVal;
 
   /**
-   *
    * @param record
    * @param orderingVal
    */

hoodie-spark/src/main/java/com/uber/hoodie/DataSourceUtils.java

@@ -87,8 +87,8 @@ public class DataSourceUtils {
   public static HoodieRecordPayload createPayload(String payloadClass, GenericRecord record,
       Comparable orderingVal) throws IOException {
     try {
-      return (HoodieRecordPayload) ConstructorUtils
-          .invokeConstructor(Class.forName(payloadClass), (Object) record, (Object) orderingVal);
+      return (HoodieRecordPayload) ConstructorUtils.invokeConstructor(Class.forName(payloadClass),
+          (Object) record, (Object) orderingVal);
     } catch (Throwable e) {
       throw new IOException("Could not create payload for class: " + payloadClass, e);
     }
@@ -103,36 +103,26 @@ public class DataSourceUtils {
     });
   }
 
-  public static HoodieWriteClient createHoodieClient(JavaSparkContext jssc,
-      String schemaStr,
-      String basePath,
-      String tblName,
-      Map<String, String> parameters) throws Exception {
-    HoodieWriteConfig writeConfig = HoodieWriteConfig.newBuilder()
-        .combineInput(true, true)
-        .withPath(basePath)
-        .withAutoCommit(false)
-        .withSchema(schemaStr)
-        .forTable(tblName)
-        .withIndexConfig(
-            HoodieIndexConfig.newBuilder()
-                .withIndexType(HoodieIndex.IndexType.BLOOM)
-                .build())
+  public static HoodieWriteClient createHoodieClient(JavaSparkContext jssc, String schemaStr,
+      String basePath, String tblName, Map<String, String> parameters) throws Exception {
+    HoodieWriteConfig writeConfig = HoodieWriteConfig.newBuilder().combineInput(true, true)
+        .withPath(basePath).withAutoCommit(false)
+        .withSchema(schemaStr).forTable(tblName).withIndexConfig(
+            HoodieIndexConfig.newBuilder().withIndexType(HoodieIndex.IndexType.BLOOM).build())
         .withCompactionConfig(HoodieCompactionConfig.newBuilder()
-            .withPayloadClass(parameters.get(DataSourceWriteOptions.PAYLOAD_CLASS_OPT_KEY()))
+            .withPayloadClass(parameters.get(
+                DataSourceWriteOptions
+                    .PAYLOAD_CLASS_OPT_KEY()))
             .build())
         // override above with Hoodie configs specified as options.
-        .withProps(parameters)
-        .build();
+        .withProps(parameters).build();
 
     return new HoodieWriteClient<>(jssc, writeConfig);
   }
 
 
   public static JavaRDD<WriteStatus> doWriteOperation(HoodieWriteClient client,
-      JavaRDD<HoodieRecord> hoodieRecords,
-      String commitTime,
-      String operation) {
+      JavaRDD<HoodieRecord> hoodieRecords, String commitTime, String operation) {
     if (operation.equals(DataSourceWriteOptions.BULK_INSERT_OPERATION_OPT_VAL())) {
       return client.bulkInsert(hoodieRecords, commitTime);
     } else if (operation.equals(DataSourceWriteOptions.INSERT_OPERATION_OPT_VAL())) {
@@ -143,14 +133,9 @@ public class DataSourceUtils {
     }
   }
 
-  public static HoodieRecord createHoodieRecord(GenericRecord gr,
-      Comparable orderingVal,
-      HoodieKey hKey,
-      String payloadClass) throws IOException {
-    HoodieRecordPayload payload = DataSourceUtils.createPayload(
-        payloadClass,
-        gr,
-        orderingVal);
+  public static HoodieRecord createHoodieRecord(GenericRecord gr, Comparable orderingVal,
+      HoodieKey hKey, String payloadClass) throws IOException {
+    HoodieRecordPayload payload = DataSourceUtils.createPayload(payloadClass, gr, orderingVal);
     return new HoodieRecord<>(hKey, payload);
   }
 }

hoodie-spark/src/main/java/com/uber/hoodie/HoodieDataSourceHelpers.java

@@ -67,11 +67,12 @@ public class HoodieDataSourceHelpers {
    */
   public static HoodieTimeline allCompletedCommitsCompactions(FileSystem fs, String basePath) {
     HoodieTable table = HoodieTable
-        .getHoodieTable(new HoodieTableMetaClient(fs.getConf(), basePath, true), null);
+        .getHoodieTable(new HoodieTableMetaClient(fs.getConf(), basePath, true),
+            null);
     if (table.getMetaClient().getTableType().equals(HoodieTableType.MERGE_ON_READ)) {
       return table.getActiveTimeline().getTimelineOfActions(
           Sets.newHashSet(HoodieActiveTimeline.COMMIT_ACTION,
-                  HoodieActiveTimeline.DELTA_COMMIT_ACTION));
+              HoodieActiveTimeline.DELTA_COMMIT_ACTION));
     } else {
       return table.getCommitTimeline().filterCompletedInstants();
     }

hoodie-spark/src/main/java/com/uber/hoodie/KeyGenerator.java

@@ -24,7 +24,8 @@ import org.apache.avro.generic.GenericRecord;
 import org.apache.commons.configuration.PropertiesConfiguration;
 
 /**
- * Abstract class to extend for plugging in extraction of {@link com.uber.hoodie.common.model.HoodieKey}
+ * Abstract class to extend for plugging in extraction of
+ * {@link com.uber.hoodie.common.model.HoodieKey}
  * from an Avro record
  */
 public abstract class KeyGenerator implements Serializable {

hoodie-spark/src/main/java/com/uber/hoodie/OverwriteWithLatestAvroPayload.java

@@ -28,7 +28,7 @@ import org.apache.avro.generic.IndexedRecord;
 
 /**
  * Default payload used for delta streamer.
- *
+ * <p>
  * 1. preCombine - Picks the latest delta record for a key, based on an ordering field 2.
  * combineAndGetUpdateValue/getInsertValue - Simply overwrites storage with latest delta record
  */
@@ -36,7 +36,6 @@ public class OverwriteWithLatestAvroPayload extends BaseAvroPayload implements
     HoodieRecordPayload<OverwriteWithLatestAvroPayload> {
 
   /**
-   *
    * @param record
    * @param orderingVal
    */