[HUDI-346] Set allowMultipleEmptyLines to false for EmptyLineSeparator rule (#1025)

hudi-utilities/src/main/java/org/apache/hudi/utilities/HoodieCompactor.java

@@ -35,7 +35,6 @@ import org.apache.log4j.Logger;
 import org.apache.spark.api.java.JavaRDD;
 import org.apache.spark.api.java.JavaSparkContext;
 
-
 public class HoodieCompactor {
 
   private static volatile Logger logger = LogManager.getLogger(HoodieCompactor.class);

hudi-utilities/src/main/java/org/apache/hudi/utilities/deltastreamer/DeltaSync.java

@@ -75,7 +75,6 @@ import org.apache.spark.sql.Row;
 import org.apache.spark.sql.SparkSession;
 import scala.collection.JavaConversions;
 
-
 /**
  * Sync's one batch of data to hoodie dataset
  */
@@ -155,7 +154,6 @@ public class DeltaSync implements Serializable {
    */
   private final HoodieTableType tableType;
 
-
   public DeltaSync(HoodieDeltaStreamer.Config cfg, SparkSession sparkSession, SchemaProvider schemaProvider,
       HoodieTableType tableType, TypedProperties props, JavaSparkContext jssc, FileSystem fs, HiveConf hiveConf,
       Function<HoodieWriteClient, Boolean> onInitializingHoodieWriteClient) throws IOException {

hudi-utilities/src/main/java/org/apache/hudi/utilities/deltastreamer/HoodieDeltaStreamer.java

@@ -65,7 +65,6 @@ import org.apache.log4j.Logger;
 import org.apache.spark.api.java.JavaSparkContext;
 import org.apache.spark.sql.SparkSession;
 
-
 /**
  * An Utility which can incrementally take the output from {@link HiveIncrementalPuller} and apply it to the target
  * dataset. Does not maintain any state, queries at runtime to see how far behind the target dataset is from the source
@@ -267,11 +266,9 @@ public class HoodieDeltaStreamer implements Serializable {
     @Parameter(names = {"--checkpoint"}, description = "Resume Delta Streamer from this checkpoint.")
     public String checkpoint = null;
 
-
     @Parameter(names = {"--help", "-h"}, help = true)
     public Boolean help = false;
 
-
     public boolean isAsyncCompactionEnabled() {
       return continuousMode && !forceDisableCompaction
           && HoodieTableType.MERGE_ON_READ.equals(HoodieTableType.valueOf(storageType));

hudi-utilities/src/main/java/org/apache/hudi/utilities/deltastreamer/SchedulerConfGenerator.java

@@ -57,7 +57,6 @@ public class SchedulerConfGenerator {
         compactionMinShare.toString());
   }
 
-
   /**
    * Helper to set Spark Scheduling Configs dynamically
    *

hudi-utilities/src/main/java/org/apache/hudi/utilities/deltastreamer/SourceFormatAdapter.java

@@ -44,7 +44,6 @@ public final class SourceFormatAdapter {
 
   private final Source source;
 
-
   public SourceFormatAdapter(Source source) {
     this.source = source;
   }

hudi-utilities/src/main/java/org/apache/hudi/utilities/keygen/TimestampBasedKeyGenerator.java

@@ -48,7 +48,6 @@ public class TimestampBasedKeyGenerator extends SimpleKeyGenerator {
 
   private final String outputDateFormat;
 
-
   /**
    * Supported configs
    */

hudi-utilities/src/main/java/org/apache/hudi/utilities/perf/TimelineServerPerf.java

@@ -209,7 +209,6 @@ public class TimelineServerPerf implements Serializable {
     }
   }
 
-
   private static class PerfStats implements Serializable {
 
     private final String partition;

hudi-utilities/src/main/java/org/apache/hudi/utilities/sources/HiveIncrPullSource.java

@@ -63,7 +63,6 @@ public class HiveIncrPullSource extends AvroSource {
 
   private final String incrPullRootPath;
 
-
   /**
    * Configs supported
    */

hudi-utilities/src/main/java/org/apache/hudi/utilities/sources/helpers/AvroConvertor.java

@@ -50,7 +50,6 @@ public class AvroConvertor implements Serializable {
    */
   private transient Injection<GenericRecord, byte[]> recordInjection;
 
-
   public AvroConvertor(String schemaStr) {
     this.schemaStr = schemaStr;
   }
@@ -79,7 +78,6 @@ public class AvroConvertor implements Serializable {
     }
   }
 
-
   public GenericRecord fromJson(String json) throws IOException {
     initSchema();
     initJsonConvertor();
@@ -90,7 +88,6 @@ public class AvroConvertor implements Serializable {
     return new Schema.Parser().parse(schemaStr);
   }
 
-
   public GenericRecord fromAvroBinary(byte[] avroBinary) {
     initSchema();
     initInjection();

hudi-utilities/src/main/java/org/apache/hudi/utilities/sources/helpers/KafkaOffsetGen.java

@@ -43,7 +43,6 @@ import scala.collection.mutable.ArrayBuffer;
 import scala.collection.mutable.StringBuilder;
 import scala.util.Either;
 
-
 /**
  * Source to read data from Kafka, incrementally
  */
@@ -250,7 +249,6 @@ public class KafkaOffsetGen {
     return checkpointOffsetReseter ? earliestOffsets : checkpointOffsets;
   }
 
-
   public String getTopicName() {
     return topicName;
   }

hudi-utilities/src/test/java/org/apache/hudi/utilities/TestHDFSParquetImporter.java

@@ -61,7 +61,6 @@ public class TestHDFSParquetImporter implements Serializable {
   private static MiniDFSCluster dfsCluster;
   private static DistributedFileSystem dfs;
 
-
   @BeforeClass
   public static void initClass() throws Exception {
     hdfsTestService = new HdfsTestService();

hudi-utilities/src/test/java/org/apache/hudi/utilities/sources/TestKafkaSource.java

@@ -78,7 +78,6 @@ public class TestKafkaSource extends UtilitiesTestBase {
     testUtils.teardown();
   }
 
-
   @Test
   public void testJsonKafkaSource() throws IOException {
 
@@ -132,7 +131,6 @@ public class TestKafkaSource extends UtilitiesTestBase {
     assertEquals(Option.empty(), fetch4AsRows.getBatch());
   }
 
-
   private static HashMap<TopicAndPartition, LeaderOffset> makeOffsetMap(int[] partitions, long[] offsets) {
     HashMap<TopicAndPartition, LeaderOffset> map = new HashMap<>();
     for (int i = 0; i < partitions.length; i++) {