[HUDI-744] Restructure hudi-common and clean up files under util packages (#1462)

- Brings more order and cohesion to the classes in hudi-common
 - Utils classes related to a particular concept (avro, timeline,...) are placed near to the package
 - common.fs package now contains all the filesystem level classes including wrapper filesystem
 - bloom.filter package renamed to just bloom
 - config package contains classes that help store properties
 - common.fs.inline package contains all the inline filesystem classes/impl
 - common.table.timeline now consolidates all timeline related classes
 - common.table.view consolidates all the classes related to filesystem view metadata
 - common.table.timeline.versioning contains all classes related to versioning of timeline
 - Fix few unit tests as a result
 - Moved the test packages around to match the source file move
 - Rename AvroUtils to TimelineMetadataUtils & minor fixes/typos

hudi-common/src/main/java/org/apache/hudi/avro/HoodieAvroUtils.java

@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.util;
+package org.apache.hudi.avro;
 
 import org.apache.hudi.common.model.HoodieRecord;
 import org.apache.hudi.exception.HoodieIOException;

hudi-common/src/main/java/org/apache/hudi/avro/HoodieAvroWriteSupport.java

@@ -18,8 +18,8 @@
 
 package org.apache.hudi.avro;
 
-import org.apache.hudi.common.bloom.filter.BloomFilter;
-import org.apache.hudi.common.bloom.filter.HoodieDynamicBoundedBloomFilter;
+import org.apache.hudi.common.bloom.BloomFilter;
+import org.apache.hudi.common.bloom.HoodieDynamicBoundedBloomFilter;
 
 import org.apache.avro.Schema;
 import org.apache.parquet.avro.AvroWriteSupport;

hudi-common/src/main/java/org/apache/hudi/common/bloom/BloomFilter.java

@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.bloom.filter;
+package org.apache.hudi.common.bloom;
 
 /**
  * A Bloom filter interface.

hudi-common/src/main/java/org/apache/hudi/common/bloom/BloomFilterFactory.java

@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.bloom.filter;
+package org.apache.hudi.common.bloom;
 
 import org.apache.hadoop.util.hash.Hash;
 

hudi-common/src/main/java/org/apache/hudi/common/bloom/BloomFilterTypeCode.java

@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.bloom.filter;
+package org.apache.hudi.common.bloom;
 
 /**
  * Bloom filter type codes.

hudi-common/src/main/java/org/apache/hudi/common/bloom/BloomFilterUtils.java

@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.bloom.filter;
+package org.apache.hudi.common.bloom;
 
 /**
  * Bloom filter utils.

hudi-common/src/main/java/org/apache/hudi/common/bloom/HoodieDynamicBoundedBloomFilter.java

@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.bloom.filter;
+package org.apache.hudi.common.bloom;
 
 import org.apache.hudi.common.util.Base64CodecUtil;
 import org.apache.hudi.exception.HoodieIndexException;

hudi-common/src/main/java/org/apache/hudi/common/bloom/InternalDynamicBloomFilter.java

@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.bloom.filter;
+package org.apache.hudi.common.bloom;
 
 import org.apache.hadoop.util.bloom.BloomFilter;
 import org.apache.hadoop.util.bloom.Key;

hudi-common/src/main/java/org/apache/hudi/common/bloom/InternalFilter.java

@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.bloom.filter;
+package org.apache.hudi.common.bloom;
 
 import org.apache.hadoop.io.Writable;
 import org.apache.hadoop.util.bloom.HashFunction;

hudi-common/src/main/java/org/apache/hudi/common/bloom/SimpleBloomFilter.java

@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.bloom.filter;
+package org.apache.hudi.common.bloom;
 
 import org.apache.hudi.common.util.Base64CodecUtil;
 import org.apache.hudi.exception.HoodieIndexException;

hudi-common/src/main/java/org/apache/hudi/common/config/DFSPropertiesConfiguration.java

@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.util;
+package org.apache.hudi.common.config;
 
 import org.apache.hadoop.fs.FileSystem;
 import org.apache.hadoop.fs.Path;

hudi-common/src/main/java/org/apache/hudi/common/config/DefaultHoodieConfig.java

@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.config;
+package org.apache.hudi.common.config;
 
 import java.io.Serializable;
 import java.util.Properties;

hudi-common/src/main/java/org/apache/hudi/common/config/SerializableConfiguration.java

@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common;
+package org.apache.hudi.common.config;
 
 import org.apache.hadoop.conf.Configuration;
 

hudi-common/src/main/java/org/apache/hudi/common/config/TypedProperties.java

@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.util;
+package org.apache.hudi.common.config;
 
 import java.io.Serializable;
 import java.util.Arrays;

hudi-common/src/main/java/org/apache/hudi/common/fs/ConsistencyGuard.java

@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.util;
+package org.apache.hudi.common.fs;
 
 import org.apache.hadoop.fs.Path;
 

hudi-common/src/main/java/org/apache/hudi/common/fs/ConsistencyGuardConfig.java

@@ -16,9 +16,9 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.util;
+package org.apache.hudi.common.fs;
 
-import org.apache.hudi.config.DefaultHoodieConfig;
+import org.apache.hudi.common.config.DefaultHoodieConfig;
 
 import java.io.File;
 import java.io.FileReader;

hudi-common/src/main/java/org/apache/hudi/common/fs/FSUtils.java

@@ -16,13 +16,15 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.util;
+package org.apache.hudi.common.fs;
 
 import org.apache.hudi.common.model.HoodieFileFormat;
 import org.apache.hudi.common.model.HoodieLogFile;
 import org.apache.hudi.common.model.HoodiePartitionMetadata;
 import org.apache.hudi.common.table.HoodieTableMetaClient;
 import org.apache.hudi.common.table.timeline.HoodieInstant;
+import org.apache.hudi.common.util.Option;
+import org.apache.hudi.common.util.ValidationUtils;
 import org.apache.hudi.common.util.collection.Pair;
 import org.apache.hudi.exception.HoodieException;
 import org.apache.hudi.exception.HoodieIOException;

hudi-common/src/main/java/org/apache/hudi/common/fs/FailSafeConsistencyGuard.java

@@ -16,11 +16,12 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.util;
+package org.apache.hudi.common.fs;
 
 import org.apache.hadoop.fs.FileStatus;
 import org.apache.hadoop.fs.FileSystem;
 import org.apache.hadoop.fs.Path;
+import org.apache.hudi.common.util.ValidationUtils;
 import org.apache.log4j.LogManager;
 import org.apache.log4j.Logger;
 

hudi-common/src/main/java/org/apache/hudi/common/fs/HoodieWrapperFileSystem.java

@@ -16,12 +16,8 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.io.storage;
+package org.apache.hudi.common.fs;
 
-import org.apache.hudi.common.storage.StorageSchemes;
-import org.apache.hudi.common.util.ConsistencyGuard;
-import org.apache.hudi.common.util.FSUtils;
-import org.apache.hudi.common.util.NoOpConsistencyGuard;
 import org.apache.hudi.exception.HoodieException;
 import org.apache.hudi.exception.HoodieIOException;
 

hudi-common/src/main/java/org/apache/hudi/common/fs/NoOpConsistencyGuard.java

@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.util;
+package org.apache.hudi.common.fs;
 
 import org.apache.hadoop.fs.Path;
 

hudi-common/src/main/java/org/apache/hudi/common/fs/SizeAwareDataInputStream.java

@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.storage;
+package org.apache.hudi.common.fs;
 
 import java.io.DataInputStream;
 import java.io.IOException;

hudi-common/src/main/java/org/apache/hudi/common/fs/SizeAwareDataOutputStream.java

@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.util.collection.io.storage;
+package org.apache.hudi.common.fs;
 
 import java.io.BufferedOutputStream;
 import java.io.DataOutputStream;

hudi-common/src/main/java/org/apache/hudi/common/fs/SizeAwareFSDataOutputStream.java

@@ -16,9 +16,8 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.io.storage;
+package org.apache.hudi.common.fs;
 
-import org.apache.hudi.common.util.ConsistencyGuard;
 import org.apache.hudi.exception.HoodieException;
 
 import org.apache.hadoop.fs.FSDataOutputStream;

hudi-common/src/main/java/org/apache/hudi/common/fs/StorageSchemes.java

@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.storage;
+package org.apache.hudi.common.fs;
 
 import java.util.Arrays;
 

hudi-common/src/main/java/org/apache/hudi/common/fs/inline/InLineFSUtils.java

@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.inline.fs;
+package org.apache.hudi.common.fs.inline;
 
 import org.apache.hadoop.fs.Path;
 

hudi-common/src/main/java/org/apache/hudi/common/fs/inline/InLineFileSystem.java

@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.inline.fs;
+package org.apache.hudi.common.fs.inline;
 
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FSDataInputStream;

hudi-common/src/main/java/org/apache/hudi/common/fs/inline/InLineFsDataInputStream.java

@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.inline.fs;
+package org.apache.hudi.common.fs.inline;
 
 import org.apache.hadoop.fs.FSDataInputStream;
 import org.apache.hadoop.fs.ReadOption;

hudi-common/src/main/java/org/apache/hudi/common/fs/inline/InMemoryFileSystem.java

@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.inline.fs;
+package org.apache.hudi.common.fs.inline;
 
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FSDataInputStream;

hudi-common/src/main/java/org/apache/hudi/common/model/BaseAvroPayload.java

@@ -18,7 +18,7 @@
 
 package org.apache.hudi.common.model;
 
-import org.apache.hudi.common.util.HoodieAvroUtils;
+import org.apache.hudi.avro.HoodieAvroUtils;
 import org.apache.hudi.exception.HoodieException;
 import org.apache.hudi.exception.HoodieIOException;
 

hudi-common/src/main/java/org/apache/hudi/common/model/CompactionOperation.java

@@ -19,7 +19,7 @@
 package org.apache.hudi.common.model;
 
 import org.apache.hudi.avro.model.HoodieCompactionOperation;
-import org.apache.hudi.common.util.FSUtils;
+import org.apache.hudi.common.fs.FSUtils;
 import org.apache.hudi.common.util.Option;
 
 import org.apache.hadoop.fs.Path;

hudi-common/src/main/java/org/apache/hudi/common/model/HoodieAvroPayload.java

@@ -18,7 +18,7 @@
 
 package org.apache.hudi.common.model;
 
-import org.apache.hudi.common.util.HoodieAvroUtils;
+import org.apache.hudi.avro.HoodieAvroUtils;
 import org.apache.hudi.common.util.Option;
 import org.apache.hudi.exception.HoodieIOException;
 

hudi-common/src/main/java/org/apache/hudi/common/model/HoodieBaseFile.java

@@ -18,7 +18,7 @@
 
 package org.apache.hudi.common.model;
 
-import org.apache.hudi.common.util.FSUtils;
+import org.apache.hudi.common.fs.FSUtils;
 
 import org.apache.hadoop.fs.FileStatus;
 import org.apache.hadoop.fs.Path;

hudi-common/src/main/java/org/apache/hudi/common/model/HoodieCommitMetadata.java

@@ -18,7 +18,7 @@
 
 package org.apache.hudi.common.model;
 
-import org.apache.hudi.common.util.FSUtils;
+import org.apache.hudi.common.fs.FSUtils;
 
 import com.fasterxml.jackson.annotation.JsonAutoDetect;
 import com.fasterxml.jackson.annotation.JsonIgnoreProperties;

hudi-common/src/main/java/org/apache/hudi/common/model/HoodieFileGroup.java

@@ -18,7 +18,7 @@
 
 package org.apache.hudi.common.model;
 
-import org.apache.hudi.common.table.HoodieTimeline;
+import org.apache.hudi.common.table.timeline.HoodieTimeline;
 import org.apache.hudi.common.table.timeline.HoodieInstant;
 import org.apache.hudi.common.util.Option;
 

hudi-common/src/main/java/org/apache/hudi/common/model/HoodieLogFile.java

@@ -18,7 +18,7 @@
 
 package org.apache.hudi.common.model;
 
-import org.apache.hudi.common.util.FSUtils;
+import org.apache.hudi.common.fs.FSUtils;
 
 import org.apache.hadoop.fs.FileStatus;
 import org.apache.hadoop.fs.FileSystem;

hudi-common/src/main/java/org/apache/hudi/common/model/OverwriteWithLatestAvroPayload.java

@@ -18,7 +18,7 @@
 
 package org.apache.hudi.common.model;
 
-import org.apache.hudi.common.util.HoodieAvroUtils;
+import org.apache.hudi.avro.HoodieAvroUtils;
 import org.apache.hudi.common.util.Option;
 
 import org.apache.avro.Schema;

hudi-common/src/main/java/org/apache/hudi/common/table/HoodieTableConfig.java

@@ -21,7 +21,7 @@ package org.apache.hudi.common.table;
 import org.apache.hudi.common.model.HoodieFileFormat;
 import org.apache.hudi.common.model.HoodieTableType;
 import org.apache.hudi.common.model.OverwriteWithLatestAvroPayload;
-import org.apache.hudi.common.model.TimelineLayoutVersion;
+import org.apache.hudi.common.table.timeline.versioning.TimelineLayoutVersion;
 import org.apache.hudi.common.util.Option;
 import org.apache.hudi.exception.HoodieIOException;
 

hudi-common/src/main/java/org/apache/hudi/common/table/HoodieTableMetaClient.java

@@ -18,17 +18,19 @@
 
 package org.apache.hudi.common.table;
 
-import org.apache.hudi.common.SerializableConfiguration;
-import org.apache.hudi.common.io.storage.HoodieWrapperFileSystem;
+import org.apache.hudi.common.table.timeline.HoodieTimeline;
+import org.apache.hudi.common.table.timeline.TimelineLayout;
+import org.apache.hudi.common.config.SerializableConfiguration;
+import org.apache.hudi.common.fs.HoodieWrapperFileSystem;
 import org.apache.hudi.common.model.HoodieTableType;
-import org.apache.hudi.common.model.TimelineLayoutVersion;
+import org.apache.hudi.common.table.timeline.versioning.TimelineLayoutVersion;
 import org.apache.hudi.common.table.timeline.HoodieActiveTimeline;
 import org.apache.hudi.common.table.timeline.HoodieArchivedTimeline;
 import org.apache.hudi.common.table.timeline.HoodieInstant;
-import org.apache.hudi.common.util.ConsistencyGuardConfig;
-import org.apache.hudi.common.util.FSUtils;
-import org.apache.hudi.common.util.FailSafeConsistencyGuard;
-import org.apache.hudi.common.util.NoOpConsistencyGuard;
+import org.apache.hudi.common.fs.ConsistencyGuardConfig;
+import org.apache.hudi.common.fs.FSUtils;
+import org.apache.hudi.common.fs.FailSafeConsistencyGuard;
+import org.apache.hudi.common.fs.NoOpConsistencyGuard;
 import org.apache.hudi.common.util.Option;
 import org.apache.hudi.common.util.ValidationUtils;
 import org.apache.hudi.exception.HoodieException;

hudi-common/src/main/java/org/apache/hudi/common/table/log/AbstractHoodieLogRecordScanner.java

@@ -23,7 +23,7 @@ import org.apache.hudi.common.model.HoodieLogFile;
 import org.apache.hudi.common.model.HoodieRecord;
 import org.apache.hudi.common.model.HoodieRecordPayload;
 import org.apache.hudi.common.table.HoodieTableMetaClient;
-import org.apache.hudi.common.table.HoodieTimeline;
+import org.apache.hudi.common.table.timeline.HoodieTimeline;
 import org.apache.hudi.common.table.log.block.HoodieAvroDataBlock;
 import org.apache.hudi.common.table.log.block.HoodieCommandBlock;
 import org.apache.hudi.common.table.log.block.HoodieDeleteBlock;

hudi-common/src/main/java/org/apache/hudi/common/table/log/HoodieLogFileReader.java

@@ -26,7 +26,7 @@ import org.apache.hudi.common.table.log.block.HoodieDeleteBlock;
 import org.apache.hudi.common.table.log.block.HoodieLogBlock;
 import org.apache.hudi.common.table.log.block.HoodieLogBlock.HeaderMetadataType;
 import org.apache.hudi.common.table.log.block.HoodieLogBlock.HoodieLogBlockType;
-import org.apache.hudi.common.util.FSUtils;
+import org.apache.hudi.common.fs.FSUtils;
 import org.apache.hudi.common.util.Option;
 import org.apache.hudi.common.util.ValidationUtils;
 import org.apache.hudi.exception.CorruptedLogFileException;

hudi-common/src/main/java/org/apache/hudi/common/table/log/HoodieLogFormat.java

@@ -20,7 +20,7 @@ package org.apache.hudi.common.table.log;
 
 import org.apache.hudi.common.model.HoodieLogFile;
 import org.apache.hudi.common.table.log.block.HoodieLogBlock;
-import org.apache.hudi.common.util.FSUtils;
+import org.apache.hudi.common.fs.FSUtils;
 import org.apache.hudi.common.util.Option;
 import org.apache.hudi.common.util.collection.Pair;
 

hudi-common/src/main/java/org/apache/hudi/common/table/log/HoodieLogFormatWriter.java

@@ -19,11 +19,11 @@
 package org.apache.hudi.common.table.log;
 
 import org.apache.hudi.common.model.HoodieLogFile;
-import org.apache.hudi.common.storage.StorageSchemes;
+import org.apache.hudi.common.fs.StorageSchemes;
 import org.apache.hudi.common.table.log.HoodieLogFormat.Writer;
 import org.apache.hudi.common.table.log.HoodieLogFormat.WriterBuilder;
 import org.apache.hudi.common.table.log.block.HoodieLogBlock;
-import org.apache.hudi.common.util.FSUtils;
+import org.apache.hudi.common.fs.FSUtils;
 import org.apache.hudi.exception.HoodieException;
 import org.apache.hudi.exception.HoodieIOException;
 

hudi-common/src/main/java/org/apache/hudi/common/table/log/LogReaderUtils.java

@@ -16,12 +16,12 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.util;
+package org.apache.hudi.common.table.log;
 
+import org.apache.hudi.common.fs.FSUtils;
 import org.apache.hudi.common.model.HoodieLogFile;
 import org.apache.hudi.common.table.HoodieTableMetaClient;
-import org.apache.hudi.common.table.HoodieTimeline;
-import org.apache.hudi.common.table.log.HoodieLogFormat;
+import org.apache.hudi.common.table.timeline.HoodieTimeline;
 import org.apache.hudi.common.table.log.HoodieLogFormat.Reader;
 import org.apache.hudi.common.table.log.block.HoodieAvroDataBlock;
 import org.apache.hudi.common.table.log.block.HoodieLogBlock;

hudi-common/src/main/java/org/apache/hudi/common/table/log/block/HoodieAvroDataBlock.java

@@ -19,8 +19,8 @@
 package org.apache.hudi.common.table.log.block;
 
 import org.apache.hudi.common.model.HoodieLogFile;
-import org.apache.hudi.common.storage.SizeAwareDataInputStream;
-import org.apache.hudi.common.util.HoodieAvroUtils;
+import org.apache.hudi.common.fs.SizeAwareDataInputStream;
+import org.apache.hudi.avro.HoodieAvroUtils;
 import org.apache.hudi.common.util.Option;
 import org.apache.hudi.exception.HoodieIOException;
 

hudi-common/src/main/java/org/apache/hudi/common/table/log/block/HoodieDeleteBlock.java

@@ -20,7 +20,7 @@ package org.apache.hudi.common.table.log.block;
 
 import org.apache.hudi.common.model.HoodieKey;
 import org.apache.hudi.common.model.HoodieLogFile;
-import org.apache.hudi.common.storage.SizeAwareDataInputStream;
+import org.apache.hudi.common.fs.SizeAwareDataInputStream;
 import org.apache.hudi.common.util.Option;
 import org.apache.hudi.common.util.SerializationUtils;
 import org.apache.hudi.exception.HoodieIOException;

hudi-common/src/main/java/org/apache/hudi/common/table/log/block/HoodieLogBlock.java

@@ -20,7 +20,7 @@ package org.apache.hudi.common.table.log.block;
 
 import org.apache.hudi.common.model.HoodieLogFile;
 import org.apache.hudi.common.table.log.HoodieMergedLogRecordScanner;
-import org.apache.hudi.common.util.FSUtils;
+import org.apache.hudi.common.fs.FSUtils;
 import org.apache.hudi.common.util.Option;
 import org.apache.hudi.exception.HoodieException;
 import org.apache.hudi.exception.HoodieIOException;

hudi-common/src/main/java/org/apache/hudi/common/table/timeline/HoodieActiveTimeline.java

@@ -19,7 +19,6 @@
 package org.apache.hudi.common.table.timeline;
 
 import org.apache.hudi.common.table.HoodieTableMetaClient;
-import org.apache.hudi.common.table.HoodieTimeline;
 import org.apache.hudi.common.table.timeline.HoodieInstant.State;
 import org.apache.hudi.common.util.FileIOUtils;
 import org.apache.hudi.common.util.Option;

hudi-common/src/main/java/org/apache/hudi/common/table/timeline/HoodieArchivedTimeline.java

@@ -26,7 +26,6 @@ import org.apache.hudi.avro.model.HoodieArchivedMetaEntry;
 import org.apache.hudi.common.model.HoodieLogFile;
 import org.apache.hudi.common.model.HoodiePartitionMetadata;
 import org.apache.hudi.common.table.HoodieTableMetaClient;
-import org.apache.hudi.common.table.HoodieTimeline;
 import org.apache.hudi.common.table.log.HoodieLogFormat;
 import org.apache.hudi.common.table.log.block.HoodieAvroDataBlock;
 import org.apache.hudi.common.util.Option;

hudi-common/src/main/java/org/apache/hudi/common/table/timeline/HoodieDefaultTimeline.java

@@ -18,7 +18,6 @@
 
 package org.apache.hudi.common.table.timeline;
 
-import org.apache.hudi.common.table.HoodieTimeline;
 import org.apache.hudi.common.table.timeline.HoodieInstant.State;
 import org.apache.hudi.common.util.CollectionUtils;
 import org.apache.hudi.common.util.Option;

hudi-common/src/main/java/org/apache/hudi/common/table/timeline/HoodieInstant.java

@@ -18,9 +18,8 @@
 
 package org.apache.hudi.common.table.timeline;
 
-import org.apache.hudi.common.table.HoodieTimeline;
 import org.apache.hudi.common.util.CollectionUtils;
-import org.apache.hudi.common.util.FSUtils;
+import org.apache.hudi.common.fs.FSUtils;
 
 import org.apache.hadoop.fs.FileStatus;
 

hudi-common/src/main/java/org/apache/hudi/common/table/timeline/HoodieTimeline.java

@@ -16,11 +16,10 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.table;
+package org.apache.hudi.common.table.timeline;
 
 import org.apache.hudi.common.model.HoodieTableType;
-import org.apache.hudi.common.table.timeline.HoodieDefaultTimeline;
-import org.apache.hudi.common.table.timeline.HoodieInstant;
+import org.apache.hudi.common.table.HoodieTableMetaClient;
 import org.apache.hudi.common.table.timeline.HoodieInstant.State;
 import org.apache.hudi.common.util.Option;
 import org.apache.hudi.common.util.StringUtils;

hudi-common/src/main/java/org/apache/hudi/common/table/timeline/TimelineDiffHelper.java

@@ -16,11 +16,10 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.util;
+package org.apache.hudi.common.table.timeline;
 
-import org.apache.hudi.common.table.HoodieTimeline;
-import org.apache.hudi.common.table.timeline.HoodieInstant;
 import org.apache.hudi.common.table.timeline.HoodieInstant.State;
+import org.apache.hudi.common.util.Option;
 import org.apache.hudi.common.util.collection.Pair;
 
 import org.apache.log4j.LogManager;

hudi-common/src/main/java/org/apache/hudi/common/table/timeline/TimelineLayout.java

@@ -16,10 +16,9 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.table;
+package org.apache.hudi.common.table.timeline;
 
-import org.apache.hudi.common.model.TimelineLayoutVersion;
-import org.apache.hudi.common.table.timeline.HoodieInstant;
+import org.apache.hudi.common.table.timeline.versioning.TimelineLayoutVersion;
 import org.apache.hudi.common.util.collection.Pair;
 
 import java.io.Serializable;

hudi-common/src/main/java/org/apache/hudi/common/table/timeline/TimelineMetadataUtils.java

@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.util;
+package org.apache.hudi.common.table.timeline;
 
 import org.apache.hudi.avro.model.HoodieCleanMetadata;
 import org.apache.hudi.avro.model.HoodieCleanerPlan;
@@ -37,6 +37,8 @@ import org.apache.avro.io.DatumWriter;
 import org.apache.avro.specific.SpecificDatumReader;
 import org.apache.avro.specific.SpecificDatumWriter;
 import org.apache.avro.specific.SpecificRecordBase;
+import org.apache.hudi.common.util.Option;
+import org.apache.hudi.common.util.ValidationUtils;
 
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
@@ -45,10 +47,7 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
-/**
- * A utility class for avro.
- */
-public class AvroUtils {
+public class TimelineMetadataUtils {
 
   private static final Integer DEFAULT_VERSION = 1;
 

hudi-common/src/main/java/org/apache/hudi/common/table/timeline/dto/TimelineDTO.java

@@ -19,7 +19,7 @@
 package org.apache.hudi.common.table.timeline.dto;
 
 import org.apache.hudi.common.table.HoodieTableMetaClient;
-import org.apache.hudi.common.table.HoodieTimeline;
+import org.apache.hudi.common.table.timeline.HoodieTimeline;
 import org.apache.hudi.common.table.timeline.HoodieDefaultTimeline;
 
 import com.fasterxml.jackson.annotation.JsonIgnoreProperties;

hudi-common/src/main/java/org/apache/hudi/common/table/timeline/versioning/AbstractMigratorBase.java

@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.versioning;
+package org.apache.hudi.common.table.timeline.versioning;
 
 import org.apache.hudi.common.table.HoodieTableMetaClient;
 

hudi-common/src/main/java/org/apache/hudi/common/table/timeline/versioning/MetadataMigrator.java

@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.versioning;
+package org.apache.hudi.common.table.timeline.versioning;
 
 import org.apache.hudi.common.table.HoodieTableMetaClient;
 import org.apache.hudi.common.util.ValidationUtils;

hudi-common/src/main/java/org/apache/hudi/common/table/timeline/versioning/TimelineLayoutVersion.java

@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.model;
+package org.apache.hudi.common.table.timeline.versioning;
 
 import org.apache.hudi.common.util.ValidationUtils;
 

hudi-common/src/main/java/org/apache/hudi/common/table/timeline/versioning/VersionMigrator.java

@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.versioning;
+package org.apache.hudi.common.table.timeline.versioning;
 
 import java.io.Serializable;
 

hudi-common/src/main/java/org/apache/hudi/common/table/timeline/versioning/clean/CleanMetadataMigrator.java

@@ -16,11 +16,11 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.versioning.clean;
+package org.apache.hudi.common.table.timeline.versioning.clean;
 
 import org.apache.hudi.avro.model.HoodieCleanMetadata;
 import org.apache.hudi.common.table.HoodieTableMetaClient;
-import org.apache.hudi.common.versioning.MetadataMigrator;
+import org.apache.hudi.common.table.timeline.versioning.MetadataMigrator;
 
 import java.util.Arrays;
 

hudi-common/src/main/java/org/apache/hudi/common/table/timeline/versioning/clean/CleanV1MigrationHandler.java

@@ -16,15 +16,15 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.versioning.clean;
+package org.apache.hudi.common.table.timeline.versioning.clean;
 
 import org.apache.hudi.avro.model.HoodieCleanMetadata;
 import org.apache.hudi.avro.model.HoodieCleanPartitionMetadata;
 import org.apache.hudi.common.table.HoodieTableMetaClient;
-import org.apache.hudi.common.util.FSUtils;
+import org.apache.hudi.common.fs.FSUtils;
 import org.apache.hudi.common.util.ValidationUtils;
 import org.apache.hudi.common.util.collection.Pair;
-import org.apache.hudi.common.versioning.AbstractMigratorBase;
+import org.apache.hudi.common.table.timeline.versioning.AbstractMigratorBase;
 
 import org.apache.hadoop.fs.Path;
 

hudi-common/src/main/java/org/apache/hudi/common/table/timeline/versioning/clean/CleanV2MigrationHandler.java

@@ -16,14 +16,14 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.versioning.clean;
+package org.apache.hudi.common.table.timeline.versioning.clean;
 
 import org.apache.hudi.avro.model.HoodieCleanMetadata;
 import org.apache.hudi.avro.model.HoodieCleanPartitionMetadata;
 import org.apache.hudi.common.table.HoodieTableMetaClient;
 import org.apache.hudi.common.util.ValidationUtils;
 import org.apache.hudi.common.util.collection.Pair;
-import org.apache.hudi.common.versioning.AbstractMigratorBase;
+import org.apache.hudi.common.table.timeline.versioning.AbstractMigratorBase;
 
 import org.apache.hadoop.fs.Path;
 

hudi-common/src/main/java/org/apache/hudi/common/table/timeline/versioning/compaction/CompactionPlanMigrator.java

@@ -16,11 +16,11 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.versioning.compaction;
+package org.apache.hudi.common.table.timeline.versioning.compaction;
 
 import org.apache.hudi.avro.model.HoodieCompactionPlan;
 import org.apache.hudi.common.table.HoodieTableMetaClient;
-import org.apache.hudi.common.versioning.MetadataMigrator;
+import org.apache.hudi.common.table.timeline.versioning.MetadataMigrator;
 
 import java.util.Arrays;
 

hudi-common/src/main/java/org/apache/hudi/common/table/timeline/versioning/compaction/CompactionV1MigrationHandler.java

@@ -16,14 +16,14 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.versioning.compaction;
+package org.apache.hudi.common.table.timeline.versioning.compaction;
 
 import org.apache.hudi.avro.model.HoodieCompactionOperation;
 import org.apache.hudi.avro.model.HoodieCompactionPlan;
 import org.apache.hudi.common.table.HoodieTableMetaClient;
-import org.apache.hudi.common.util.FSUtils;
+import org.apache.hudi.common.fs.FSUtils;
 import org.apache.hudi.common.util.ValidationUtils;
-import org.apache.hudi.common.versioning.AbstractMigratorBase;
+import org.apache.hudi.common.table.timeline.versioning.AbstractMigratorBase;
 
 import org.apache.hadoop.fs.Path;
 

hudi-common/src/main/java/org/apache/hudi/common/table/timeline/versioning/compaction/CompactionV2MigrationHandler.java

@@ -16,13 +16,13 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.versioning.compaction;
+package org.apache.hudi.common.table.timeline.versioning.compaction;
 
 import org.apache.hudi.avro.model.HoodieCompactionOperation;
 import org.apache.hudi.avro.model.HoodieCompactionPlan;
 import org.apache.hudi.common.table.HoodieTableMetaClient;
 import org.apache.hudi.common.util.ValidationUtils;
-import org.apache.hudi.common.versioning.AbstractMigratorBase;
+import org.apache.hudi.common.table.timeline.versioning.AbstractMigratorBase;
 
 import org.apache.hadoop.fs.Path;
 

hudi-common/src/main/java/org/apache/hudi/common/table/view/AbstractTableFileSystemView.java

@@ -25,11 +25,10 @@ import org.apache.hudi.common.model.HoodieFileGroup;
 import org.apache.hudi.common.model.HoodieFileGroupId;
 import org.apache.hudi.common.model.HoodieLogFile;
 import org.apache.hudi.common.table.HoodieTableMetaClient;
-import org.apache.hudi.common.table.HoodieTimeline;
-import org.apache.hudi.common.table.SyncableFileSystemView;
+import org.apache.hudi.common.table.timeline.HoodieTimeline;
 import org.apache.hudi.common.table.timeline.HoodieInstant;
 import org.apache.hudi.common.util.CompactionUtils;
-import org.apache.hudi.common.util.FSUtils;
+import org.apache.hudi.common.fs.FSUtils;
 import org.apache.hudi.common.util.HoodieTimer;
 import org.apache.hudi.common.util.Option;
 import org.apache.hudi.common.util.ValidationUtils;

hudi-common/src/main/java/org/apache/hudi/common/table/view/FileSystemViewManager.java

@@ -18,10 +18,9 @@
 
 package org.apache.hudi.common.table.view;
 
-import org.apache.hudi.common.SerializableConfiguration;
+import org.apache.hudi.common.config.SerializableConfiguration;
 import org.apache.hudi.common.table.HoodieTableMetaClient;
-import org.apache.hudi.common.table.HoodieTimeline;
-import org.apache.hudi.common.table.SyncableFileSystemView;
+import org.apache.hudi.common.table.timeline.HoodieTimeline;
 import org.apache.hudi.common.util.Functions.Function2;
 
 import org.apache.log4j.LogManager;

hudi-common/src/main/java/org/apache/hudi/common/table/view/FileSystemViewStorageConfig.java

@@ -19,7 +19,7 @@
 package org.apache.hudi.common.table.view;
 
 import org.apache.hudi.common.util.ValidationUtils;
-import org.apache.hudi.config.DefaultHoodieConfig;
+import org.apache.hudi.common.config.DefaultHoodieConfig;
 
 import java.io.File;
 import java.io.FileReader;

hudi-common/src/main/java/org/apache/hudi/common/table/view/HoodieTableFileSystemView.java

@@ -22,8 +22,7 @@ import org.apache.hudi.common.model.CompactionOperation;
 import org.apache.hudi.common.model.HoodieFileGroup;
 import org.apache.hudi.common.model.HoodieFileGroupId;
 import org.apache.hudi.common.table.HoodieTableMetaClient;
-import org.apache.hudi.common.table.HoodieTimeline;
-import org.apache.hudi.common.table.TableFileSystemView;
+import org.apache.hudi.common.table.timeline.HoodieTimeline;
 import org.apache.hudi.common.util.Option;
 import org.apache.hudi.common.util.ValidationUtils;
 import org.apache.hudi.common.util.collection.Pair;

hudi-common/src/main/java/org/apache/hudi/common/table/view/IncrementalTimelineSyncFileSystemView.java

@@ -28,15 +28,15 @@ import org.apache.hudi.common.model.HoodieBaseFile;
 import org.apache.hudi.common.model.HoodieCommitMetadata;
 import org.apache.hudi.common.model.HoodieFileGroup;
 import org.apache.hudi.common.model.HoodieLogFile;
-import org.apache.hudi.common.table.HoodieTimeline;
+import org.apache.hudi.common.table.timeline.HoodieTimeline;
 import org.apache.hudi.common.table.timeline.HoodieInstant;
-import org.apache.hudi.common.util.AvroUtils;
+import org.apache.hudi.common.table.timeline.TimelineMetadataUtils;
 import org.apache.hudi.common.util.CleanerUtils;
 import org.apache.hudi.common.util.CompactionUtils;
-import org.apache.hudi.common.util.FSUtils;
+import org.apache.hudi.common.fs.FSUtils;
 import org.apache.hudi.common.util.Option;
-import org.apache.hudi.common.util.TimelineDiffHelper;
-import org.apache.hudi.common.util.TimelineDiffHelper.TimelineDiffResult;
+import org.apache.hudi.common.table.timeline.TimelineDiffHelper;
+import org.apache.hudi.common.table.timeline.TimelineDiffHelper.TimelineDiffResult;
 import org.apache.hudi.common.util.collection.Pair;
 import org.apache.hudi.exception.HoodieException;
 
@@ -220,7 +220,7 @@ public abstract class IncrementalTimelineSyncFileSystemView extends AbstractTabl
   private void addRestoreInstant(HoodieTimeline timeline, HoodieInstant instant) throws IOException {
     LOG.info("Syncing restore instant (" + instant + ")");
     HoodieRestoreMetadata metadata =
-        AvroUtils.deserializeAvroMetadata(timeline.getInstantDetails(instant).get(), HoodieRestoreMetadata.class);
+        TimelineMetadataUtils.deserializeAvroMetadata(timeline.getInstantDetails(instant).get(), HoodieRestoreMetadata.class);
 
     Map<String, List<Pair<String, String>>> partitionFiles =
         metadata.getHoodieRestoreMetadata().entrySet().stream().flatMap(entry -> {
@@ -244,7 +244,7 @@ public abstract class IncrementalTimelineSyncFileSystemView extends AbstractTabl
   private void addRollbackInstant(HoodieTimeline timeline, HoodieInstant instant) throws IOException {
     LOG.info("Syncing rollback instant (" + instant + ")");
     HoodieRollbackMetadata metadata =
-        AvroUtils.deserializeAvroMetadata(timeline.getInstantDetails(instant).get(), HoodieRollbackMetadata.class);
+        TimelineMetadataUtils.deserializeAvroMetadata(timeline.getInstantDetails(instant).get(), HoodieRollbackMetadata.class);
 
     metadata.getPartitionMetadata().entrySet().stream().forEach(e -> {
       removeFileSlicesForPartition(timeline, instant, e.getKey(), e.getValue().getSuccessDeleteFiles());

hudi-common/src/main/java/org/apache/hudi/common/table/view/PriorityBasedFileSystemView.java

@@ -22,8 +22,7 @@ import org.apache.hudi.common.model.CompactionOperation;
 import org.apache.hudi.common.model.FileSlice;
 import org.apache.hudi.common.model.HoodieBaseFile;
 import org.apache.hudi.common.model.HoodieFileGroup;
-import org.apache.hudi.common.table.HoodieTimeline;
-import org.apache.hudi.common.table.SyncableFileSystemView;
+import org.apache.hudi.common.table.timeline.HoodieTimeline;
 import org.apache.hudi.common.table.timeline.HoodieInstant;
 import org.apache.hudi.common.util.Functions.Function0;
 import org.apache.hudi.common.util.Functions.Function1;

hudi-common/src/main/java/org/apache/hudi/common/table/view/RemoteHoodieTableFileSystemView.java

@@ -23,8 +23,7 @@ import org.apache.hudi.common.model.FileSlice;
 import org.apache.hudi.common.model.HoodieBaseFile;
 import org.apache.hudi.common.model.HoodieFileGroup;
 import org.apache.hudi.common.table.HoodieTableMetaClient;
-import org.apache.hudi.common.table.HoodieTimeline;
-import org.apache.hudi.common.table.SyncableFileSystemView;
+import org.apache.hudi.common.table.timeline.HoodieTimeline;
 import org.apache.hudi.common.table.timeline.HoodieInstant;
 import org.apache.hudi.common.table.timeline.dto.BaseFileDTO;
 import org.apache.hudi.common.table.timeline.dto.CompactionOpDTO;

hudi-common/src/main/java/org/apache/hudi/common/table/view/RocksDbBasedFileSystemView.java

@@ -25,9 +25,9 @@ import org.apache.hudi.common.model.HoodieFileGroup;
 import org.apache.hudi.common.model.HoodieFileGroupId;
 import org.apache.hudi.common.model.HoodieLogFile;
 import org.apache.hudi.common.table.HoodieTableMetaClient;
-import org.apache.hudi.common.table.HoodieTimeline;
+import org.apache.hudi.common.table.timeline.HoodieTimeline;
 import org.apache.hudi.common.util.Option;
-import org.apache.hudi.common.util.RocksDBDAO;
+import org.apache.hudi.common.util.collection.RocksDBDAO;
 import org.apache.hudi.common.util.RocksDBSchemaHelper;
 import org.apache.hudi.common.util.ValidationUtils;
 import org.apache.hudi.common.util.collection.Pair;

hudi-common/src/main/java/org/apache/hudi/common/table/view/SpillableMapBasedFileSystemView.java

@@ -22,7 +22,7 @@ import org.apache.hudi.common.model.CompactionOperation;
 import org.apache.hudi.common.model.HoodieFileGroup;
 import org.apache.hudi.common.model.HoodieFileGroupId;
 import org.apache.hudi.common.table.HoodieTableMetaClient;
-import org.apache.hudi.common.table.HoodieTimeline;
+import org.apache.hudi.common.table.timeline.HoodieTimeline;
 import org.apache.hudi.common.util.DefaultSizeEstimator;
 import org.apache.hudi.common.util.collection.ExternalSpillableMap;
 import org.apache.hudi.common.util.collection.Pair;

hudi-common/src/main/java/org/apache/hudi/common/table/view/SyncableFileSystemView.java

@@ -16,10 +16,10 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.table;
+package org.apache.hudi.common.table.view;
 
-import org.apache.hudi.common.table.TableFileSystemView.BaseFileOnlyView;
-import org.apache.hudi.common.table.TableFileSystemView.SliceView;
+import org.apache.hudi.common.table.view.TableFileSystemView.BaseFileOnlyView;
+import org.apache.hudi.common.table.view.TableFileSystemView.SliceView;
 
 /**
  * A consolidated file-system view interface exposing both complete slice and basefile only views along with

hudi-common/src/main/java/org/apache/hudi/common/table/view/TableFileSystemView.java

@@ -16,13 +16,14 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.table;
+package org.apache.hudi.common.table.view;
 
 import org.apache.hudi.common.model.CompactionOperation;
 import org.apache.hudi.common.model.FileSlice;
 import org.apache.hudi.common.model.HoodieBaseFile;
 import org.apache.hudi.common.model.HoodieFileGroup;
 import org.apache.hudi.common.table.timeline.HoodieInstant;
+import org.apache.hudi.common.table.timeline.HoodieTimeline;
 import org.apache.hudi.common.util.Option;
 import org.apache.hudi.common.util.collection.Pair;
 

hudi-common/src/main/java/org/apache/hudi/common/util/CleanerUtils.java

@@ -18,15 +18,16 @@
 
 package org.apache.hudi.common.util;
 
+import org.apache.hudi.common.table.timeline.TimelineMetadataUtils;
 import org.apache.hudi.avro.model.HoodieCleanMetadata;
 import org.apache.hudi.avro.model.HoodieCleanPartitionMetadata;
 import org.apache.hudi.avro.model.HoodieCleanerPlan;
 import org.apache.hudi.common.HoodieCleanStat;
 import org.apache.hudi.common.table.HoodieTableMetaClient;
 import org.apache.hudi.common.table.timeline.HoodieInstant;
-import org.apache.hudi.common.versioning.clean.CleanMetadataMigrator;
-import org.apache.hudi.common.versioning.clean.CleanV1MigrationHandler;
-import org.apache.hudi.common.versioning.clean.CleanV2MigrationHandler;
+import org.apache.hudi.common.table.timeline.versioning.clean.CleanMetadataMigrator;
+import org.apache.hudi.common.table.timeline.versioning.clean.CleanV1MigrationHandler;
+import org.apache.hudi.common.table.timeline.versioning.clean.CleanV2MigrationHandler;
 
 import java.io.IOException;
 import java.util.HashMap;
@@ -69,7 +70,7 @@ public class CleanerUtils {
   public static HoodieCleanMetadata getCleanerMetadata(HoodieTableMetaClient metaClient, HoodieInstant cleanInstant)
       throws IOException {
     CleanMetadataMigrator metadataMigrator = new CleanMetadataMigrator(metaClient);
-    HoodieCleanMetadata cleanMetadata = AvroUtils.deserializeHoodieCleanMetadata(
+    HoodieCleanMetadata cleanMetadata = TimelineMetadataUtils.deserializeHoodieCleanMetadata(
         metaClient.getActiveTimeline().readCleanerInfoAsBytes(cleanInstant).get());
     return metadataMigrator.upgradeToLatest(cleanMetadata, cleanMetadata.getVersion());
   }
@@ -83,7 +84,7 @@ public class CleanerUtils {
    */
   public static HoodieCleanerPlan getCleanerPlan(HoodieTableMetaClient metaClient, HoodieInstant cleanInstant)
       throws IOException {
-    return AvroUtils.deserializeAvroMetadata(metaClient.getActiveTimeline().readCleanerInfoAsBytes(cleanInstant).get(),
+    return TimelineMetadataUtils.deserializeAvroMetadata(metaClient.getActiveTimeline().readCleanerInfoAsBytes(cleanInstant).get(),
         HoodieCleanerPlan.class);
   }
 }

hudi-common/src/main/java/org/apache/hudi/common/util/CompactionUtils.java

@@ -18,18 +18,19 @@
 
 package org.apache.hudi.common.util;
 
+import org.apache.hudi.common.table.timeline.TimelineMetadataUtils;
 import org.apache.hudi.avro.model.HoodieCompactionOperation;
 import org.apache.hudi.avro.model.HoodieCompactionPlan;
 import org.apache.hudi.common.model.CompactionOperation;
 import org.apache.hudi.common.model.FileSlice;
 import org.apache.hudi.common.model.HoodieFileGroupId;
 import org.apache.hudi.common.table.HoodieTableMetaClient;
-import org.apache.hudi.common.table.HoodieTimeline;
+import org.apache.hudi.common.table.timeline.HoodieTimeline;
 import org.apache.hudi.common.table.timeline.HoodieInstant;
 import org.apache.hudi.common.util.collection.Pair;
-import org.apache.hudi.common.versioning.compaction.CompactionPlanMigrator;
-import org.apache.hudi.common.versioning.compaction.CompactionV1MigrationHandler;
-import org.apache.hudi.common.versioning.compaction.CompactionV2MigrationHandler;
+import org.apache.hudi.common.table.timeline.versioning.compaction.CompactionPlanMigrator;
+import org.apache.hudi.common.table.timeline.versioning.compaction.CompactionV1MigrationHandler;
+import org.apache.hudi.common.table.timeline.versioning.compaction.CompactionV2MigrationHandler;
 import org.apache.hudi.exception.HoodieException;
 
 import org.apache.log4j.LogManager;
@@ -139,7 +140,7 @@ public class CompactionUtils {
   public static HoodieCompactionPlan getCompactionPlan(HoodieTableMetaClient metaClient, String compactionInstant)
       throws IOException {
     CompactionPlanMigrator migrator = new CompactionPlanMigrator(metaClient);
-    HoodieCompactionPlan compactionPlan = AvroUtils.deserializeCompactionPlan(
+    HoodieCompactionPlan compactionPlan = TimelineMetadataUtils.deserializeCompactionPlan(
         metaClient.getActiveTimeline().readCompactionPlanAsBytes(
             HoodieTimeline.getCompactionRequestedInstant(compactionInstant)).get());
     return migrator.upgradeToLatest(compactionPlan, compactionPlan.getVersion());

hudi-common/src/main/java/org/apache/hudi/common/util/ParquetUtils.java

@@ -18,10 +18,12 @@
 
 package org.apache.hudi.common.util;
 
+import org.apache.hudi.avro.HoodieAvroUtils;
 import org.apache.hudi.avro.HoodieAvroWriteSupport;
-import org.apache.hudi.common.bloom.filter.BloomFilter;
-import org.apache.hudi.common.bloom.filter.BloomFilterFactory;
-import org.apache.hudi.common.bloom.filter.BloomFilterTypeCode;
+import org.apache.hudi.common.bloom.BloomFilter;
+import org.apache.hudi.common.bloom.BloomFilterFactory;
+import org.apache.hudi.common.bloom.BloomFilterTypeCode;
+import org.apache.hudi.common.fs.FSUtils;
 import org.apache.hudi.common.model.HoodieRecord;
 import org.apache.hudi.exception.HoodieException;
 import org.apache.hudi.exception.HoodieIOException;

hudi-common/src/main/java/org/apache/hudi/common/util/SpillableMapUtils.java

@@ -22,7 +22,7 @@ import org.apache.hudi.common.model.HoodieKey;
 import org.apache.hudi.common.model.HoodieRecord;
 import org.apache.hudi.common.model.HoodieRecordPayload;
 import org.apache.hudi.common.util.collection.DiskBasedMap.FileEntry;
-import org.apache.hudi.common.util.collection.io.storage.SizeAwareDataOutputStream;
+import org.apache.hudi.common.fs.SizeAwareDataOutputStream;
 import org.apache.hudi.exception.HoodieCorruptedDataException;
 
 import org.apache.avro.generic.GenericRecord;

hudi-common/src/main/java/org/apache/hudi/common/util/collection/DiskBasedMap.java

@@ -21,7 +21,7 @@ package org.apache.hudi.common.util.collection;
 import org.apache.hudi.common.util.BufferedRandomAccessFile;
 import org.apache.hudi.common.util.SerializationUtils;
 import org.apache.hudi.common.util.SpillableMapUtils;
-import org.apache.hudi.common.util.collection.io.storage.SizeAwareDataOutputStream;
+import org.apache.hudi.common.fs.SizeAwareDataOutputStream;
 import org.apache.hudi.exception.HoodieException;
 import org.apache.hudi.exception.HoodieIOException;
 import org.apache.hudi.exception.HoodieNotSupportedException;

hudi-common/src/main/java/org/apache/hudi/common/util/collection/RocksDBBasedMap.java

@@ -18,7 +18,6 @@
 
 package org.apache.hudi.common.util.collection;
 
-import org.apache.hudi.common.util.RocksDBDAO;
 import org.apache.hudi.exception.HoodieNotSupportedException;
 
 import java.io.Serializable;

hudi-common/src/main/java/org/apache/hudi/common/util/collection/RocksDBDAO.java

@@ -16,9 +16,12 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.util;
+package org.apache.hudi.common.util.collection;
 
-import org.apache.hudi.common.util.collection.Pair;
+import org.apache.hudi.common.util.FileIOUtils;
+import org.apache.hudi.common.util.HoodieTimer;
+import org.apache.hudi.common.util.SerializationUtils;
+import org.apache.hudi.common.util.ValidationUtils;
 import org.apache.hudi.exception.HoodieException;
 import org.apache.hudi.exception.HoodieIOException;
 

hudi-common/src/test/java/org/apache/hudi/avro/TestHoodieAvroUtils.java

@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.util;
+package org.apache.hudi.avro;
 
 import org.apache.avro.Schema;
 import org.codehaus.jackson.JsonNode;

hudi-common/src/test/java/org/apache/hudi/common/HoodieCommonTestHarness.java

@@ -21,8 +21,8 @@ package org.apache.hudi.common;
 import org.apache.hudi.common.model.HoodieTableType;
 import org.apache.hudi.common.model.HoodieTestUtils;
 import org.apache.hudi.common.table.HoodieTableMetaClient;
-import org.apache.hudi.common.table.HoodieTimeline;
-import org.apache.hudi.common.table.SyncableFileSystemView;
+import org.apache.hudi.common.table.timeline.HoodieTimeline;
+import org.apache.hudi.common.table.view.SyncableFileSystemView;
 import org.apache.hudi.common.table.view.HoodieTableFileSystemView;
 
 import org.junit.Rule;

hudi-common/src/test/java/org/apache/hudi/common/bloom/TestBloomFilter.java

@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.bloom.filter;
+package org.apache.hudi.common.bloom;
 
 import org.junit.Assert;
 import org.junit.Test;

hudi-common/src/test/java/org/apache/hudi/common/bloom/TestInternalDynamicBloomFilter.java

@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.bloom.filter;
+package org.apache.hudi.common.bloom;
 
 import org.apache.hadoop.util.hash.Hash;
 import org.junit.Assert;

hudi-common/src/test/java/org/apache/hudi/common/fs/TestFSUtils.java

@@ -16,13 +16,13 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.util;
+package org.apache.hudi.common.fs;
 
 import org.apache.hudi.common.HoodieCommonTestHarness;
 import org.apache.hudi.common.model.HoodieLogFile;
 import org.apache.hudi.common.model.HoodieTestUtils;
 import org.apache.hudi.common.table.HoodieTableMetaClient;
-import org.apache.hudi.common.table.HoodieTimeline;
+import org.apache.hudi.common.table.timeline.HoodieTimeline;
 import org.apache.hudi.common.table.timeline.HoodieInstant;
 import org.apache.hudi.exception.HoodieException;
 

hudi-common/src/test/java/org/apache/hudi/common/fs/inline/FileSystemTestUtils.java

@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.inline.fs;
+package org.apache.hudi.common.fs.inline;
 
 import org.apache.hadoop.fs.Path;
 

hudi-common/src/test/java/org/apache/hudi/common/fs/inline/TestHFileInLining.java

@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.inline.fs;
+package org.apache.hudi.common.fs.inline;
 
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FSDataInputStream;
@@ -42,10 +42,10 @@ import java.util.HashSet;
 import java.util.Set;
 import java.util.UUID;
 
-import static org.apache.hudi.common.inline.fs.FileSystemTestUtils.FILE_SCHEME;
-import static org.apache.hudi.common.inline.fs.FileSystemTestUtils.RANDOM;
-import static org.apache.hudi.common.inline.fs.FileSystemTestUtils.getPhantomFile;
-import static org.apache.hudi.common.inline.fs.FileSystemTestUtils.getRandomOuterInMemPath;
+import static org.apache.hudi.common.fs.inline.FileSystemTestUtils.FILE_SCHEME;
+import static org.apache.hudi.common.fs.inline.FileSystemTestUtils.RANDOM;
+import static org.apache.hudi.common.fs.inline.FileSystemTestUtils.getPhantomFile;
+import static org.apache.hudi.common.fs.inline.FileSystemTestUtils.getRandomOuterInMemPath;
 
 /**
  * Tests {@link InLineFileSystem} to inline HFile.

hudi-common/src/test/java/org/apache/hudi/common/fs/inline/TestInLineFileSystem.java

@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.inline.fs;
+package org.apache.hudi.common.fs.inline;
 
 import org.apache.hudi.common.util.collection.Pair;
 
@@ -38,8 +38,8 @@ import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
 
-import static org.apache.hudi.common.inline.fs.FileSystemTestUtils.RANDOM;
-import static org.apache.hudi.common.inline.fs.FileSystemTestUtils.getRandomOuterFSPath;
+import static org.apache.hudi.common.fs.inline.FileSystemTestUtils.RANDOM;
+import static org.apache.hudi.common.fs.inline.FileSystemTestUtils.getRandomOuterFSPath;
 
 /**
  * Tests {@link InLineFileSystem}.

hudi-common/src/test/java/org/apache/hudi/common/fs/inline/TestInMemoryFileSystem.java

@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hudi.common.inline.fs;
+package org.apache.hudi.common.fs.inline;
 
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FSDataOutputStream;
@@ -27,8 +27,8 @@ import org.junit.Test;
 import java.io.IOException;
 import java.net.URI;
 
-import static org.apache.hudi.common.inline.fs.FileSystemTestUtils.RANDOM;
-import static org.apache.hudi.common.inline.fs.FileSystemTestUtils.getRandomOuterInMemPath;
+import static org.apache.hudi.common.fs.inline.FileSystemTestUtils.RANDOM;
+import static org.apache.hudi.common.fs.inline.FileSystemTestUtils.getRandomOuterInMemPath;
 
 /**
  * Unit tests {@link InMemoryFileSystem}.

hudi-common/src/test/java/org/apache/hudi/common/minicluster/HdfsTestService.java

@@ -54,7 +54,7 @@ public class HdfsTestService {
   private MiniDFSCluster miniDfsCluster;
 
   public HdfsTestService() throws IOException {
-    workDir = Files.createTempDirectory("temp").getName(0).toString();
+    workDir = Files.createTempDirectory("temp").toFile().getAbsolutePath();
   }
 
   public Configuration getHadoopConf() {

hudi-common/src/test/java/org/apache/hudi/common/model/AvroBinaryTestPayload.java

@@ -18,7 +18,7 @@
 
 package org.apache.hudi.common.model;
 
-import org.apache.hudi.common.util.HoodieAvroUtils;
+import org.apache.hudi.avro.HoodieAvroUtils;
 import org.apache.hudi.common.util.Option;
 import org.apache.hudi.exception.HoodieIOException;
 

hudi-common/src/test/java/org/apache/hudi/common/model/HoodieTestUtils.java

@@ -26,7 +26,7 @@ import org.apache.hudi.common.HoodieCleanStat;
 import org.apache.hudi.common.model.HoodieWriteStat.RuntimeStats;
 import org.apache.hudi.common.table.HoodieTableConfig;
 import org.apache.hudi.common.table.HoodieTableMetaClient;
-import org.apache.hudi.common.table.HoodieTimeline;
+import org.apache.hudi.common.table.timeline.HoodieTimeline;
 import org.apache.hudi.common.table.log.HoodieLogFormat;
 import org.apache.hudi.common.table.log.HoodieLogFormat.Writer;
 import org.apache.hudi.common.table.log.block.HoodieAvroDataBlock;
@@ -34,11 +34,11 @@ import org.apache.hudi.common.table.log.block.HoodieLogBlock;
 import org.apache.hudi.common.table.timeline.HoodieActiveTimeline;
 import org.apache.hudi.common.table.timeline.HoodieInstant;
 import org.apache.hudi.common.table.timeline.HoodieInstant.State;
-import org.apache.hudi.common.util.AvroUtils;
+import org.apache.hudi.common.table.timeline.TimelineMetadataUtils;
 import org.apache.hudi.common.util.CleanerUtils;
 import org.apache.hudi.common.util.CompactionUtils;
-import org.apache.hudi.common.util.FSUtils;
-import org.apache.hudi.common.util.HoodieAvroUtils;
+import org.apache.hudi.common.fs.FSUtils;
+import org.apache.hudi.avro.HoodieAvroUtils;
 import org.apache.hudi.common.util.Option;
 import org.apache.hudi.common.util.collection.Pair;
 import org.apache.hudi.exception.HoodieIOException;
@@ -162,7 +162,7 @@ public class HoodieTestUtils {
                   metaClient.getBasePath() + "/" + HoodieTableMetaClient.METAFOLDER_NAME + "/" + f);
               os = metaClient.getFs().create(commitFile, true);
               // Write empty clean metadata
-              os.write(AvroUtils.serializeCleanerPlan(
+              os.write(TimelineMetadataUtils.serializeCleanerPlan(
                   new HoodieCleanerPlan(new HoodieActionInstant("", "", ""), "", new HashMap<>(), 1)).get());
             } catch (IOException ioe) {
               throw new HoodieIOException(ioe.getMessage(), ioe);
@@ -241,7 +241,7 @@ public class HoodieTestUtils {
     HoodieCompactionPlan plan = CompactionUtils.buildFromFileSlices(fileSliceList, Option.empty(), Option.empty());
     HoodieInstant compactionInstant = new HoodieInstant(State.REQUESTED, HoodieTimeline.COMPACTION_ACTION, instant);
     metaClient.getActiveTimeline().saveToCompactionRequested(compactionInstant,
-        AvroUtils.serializeCompactionPlan(plan));
+        TimelineMetadataUtils.serializeCompactionPlan(plan));
   }
 
   public static String getDataFilePath(String basePath, String partitionPath, String instantTime, String fileID) {
@@ -306,7 +306,7 @@ public class HoodieTestUtils {
       HoodieCleanMetadata cleanMetadata =
           CleanerUtils.convertCleanMetadata(metaClient, instantTime, Option.of(0L), Collections.singletonList(cleanStats));
       // Write empty clean metadata
-      os.write(AvroUtils.serializeCleanMetadata(cleanMetadata).get());
+      os.write(TimelineMetadataUtils.serializeCleanMetadata(cleanMetadata).get());
     }
   }
 

hudi-common/src/test/java/org/apache/hudi/common/model/TestHoodieWriteStat.java

@@ -18,7 +18,7 @@
 
 package org.apache.hudi.common.model;
 
-import org.apache.hudi.common.util.FSUtils;
+import org.apache.hudi.common.fs.FSUtils;
 
 import org.apache.hadoop.fs.Path;
 import org.junit.Test;

hudi-common/src/test/java/org/apache/hudi/common/storage/TestStorageSchemes.java

@@ -18,6 +18,7 @@
 
 package org.apache.hudi.common.storage;
 
+import org.apache.hudi.common.fs.StorageSchemes;
 import org.junit.Test;
 
 import static org.junit.Assert.assertFalse;

hudi-common/src/test/java/org/apache/hudi/common/table/TestHoodieTableMetaClient.java

@@ -22,6 +22,7 @@ import org.apache.hudi.common.HoodieCommonTestHarness;
 import org.apache.hudi.common.model.HoodieTestUtils;
 import org.apache.hudi.common.table.timeline.HoodieActiveTimeline;
 import org.apache.hudi.common.table.timeline.HoodieInstant;
+import org.apache.hudi.common.table.timeline.HoodieTimeline;
 import org.apache.hudi.common.util.Option;
 
 import org.junit.Before;

hudi-common/src/test/java/org/apache/hudi/common/table/TestTimelineLayout.java

@@ -18,10 +18,12 @@
 
 package org.apache.hudi.common.table;
 
-import org.apache.hudi.common.model.TimelineLayoutVersion;
+import org.apache.hudi.common.table.timeline.versioning.TimelineLayoutVersion;
 import org.apache.hudi.common.table.timeline.HoodieInstant;
 import org.apache.hudi.common.table.timeline.HoodieInstant.State;
 
+import org.apache.hudi.common.table.timeline.HoodieTimeline;
+import org.apache.hudi.common.table.timeline.TimelineLayout;
 import org.junit.Assert;
 import org.junit.Test;
 

hudi-common/src/test/java/org/apache/hudi/common/table/log/TestHoodieLogFormat.java

@@ -34,8 +34,8 @@ import org.apache.hudi.common.table.log.block.HoodieDeleteBlock;
 import org.apache.hudi.common.table.log.block.HoodieLogBlock;
 import org.apache.hudi.common.table.log.block.HoodieLogBlock.HeaderMetadataType;
 import org.apache.hudi.common.table.log.block.HoodieLogBlock.HoodieLogBlockType;
-import org.apache.hudi.common.util.FSUtils;
-import org.apache.hudi.common.util.HoodieAvroUtils;
+import org.apache.hudi.common.fs.FSUtils;
+import org.apache.hudi.avro.HoodieAvroUtils;
 import org.apache.hudi.common.util.SchemaTestUtil;
 import org.apache.hudi.exception.CorruptedLogFileException;