org.apache.hudi.table.action.rollback

Class BaseRollbackHelper

java.lang.Object

org.apache.hudi.table.action.rollback.BaseRollbackHelper

All Implemented Interfaces:

Serializable

public class BaseRollbackHelper
extends Object
implements Serializable

Contains common methods to be used across engines for rollback operation.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	BaseRollbackHelper.SerializablePathFilter

Field Summary

Fields

Modifier and Type	Field and Description
protected HoodieWriteConfig	config
protected static String	EMPTY_STRING
protected HoodieTableMetaClient	metaClient

Constructor Summary

Constructors

Constructor and Description
BaseRollbackHelper(HoodieTableMetaClient metaClient, HoodieWriteConfig config)

Method Summary

Modifier and Type	Method and Description
List<HoodieRollbackStat>	collectRollbackStats(HoodieEngineContext context, HoodieInstant instantToRollback, List<HoodieRollbackRequest> rollbackRequests) Collect all file info that needs to be rollbacked.
protected List<HoodieRollbackStat>	deleteFiles(HoodieTableMetaClient metaClient, List<String> filesToBeDeleted, boolean doDelete) Common method used for cleaning out files during rollback.
protected Map<HoodieLogBlock.HeaderMetadataType,String>	generateHeader(String commit)
List<HoodieRollbackStat>	performRollback(HoodieEngineContext context, HoodieInstant instantToRollback, List<HoodieRollbackRequest> rollbackRequests) Performs all rollback actions that we have collected in parallel.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

EMPTY_STRING

protected static final String EMPTY_STRING

See Also:

Constant Field Values

metaClient

protected final HoodieTableMetaClient metaClient

config

protected final HoodieWriteConfig config

Constructor Detail

BaseRollbackHelper

public BaseRollbackHelper(HoodieTableMetaClient metaClient,
                          HoodieWriteConfig config)

Method Detail

performRollback

public List<HoodieRollbackStat> performRollback(HoodieEngineContext context,
                                                HoodieInstant instantToRollback,
                                                List<HoodieRollbackRequest> rollbackRequests)

Performs all rollback actions that we have collected in parallel.

collectRollbackStats

public List<HoodieRollbackStat> collectRollbackStats(HoodieEngineContext context,
                                                     HoodieInstant instantToRollback,
                                                     List<HoodieRollbackRequest> rollbackRequests)

Collect all file info that needs to be rollbacked.

deleteFiles

protected List<HoodieRollbackStat> deleteFiles(HoodieTableMetaClient metaClient,
                                               List<String> filesToBeDeleted,
                                               boolean doDelete)
                                        throws IOException

Common method used for cleaning out files during rollback.

Throws:

IOException

generateHeader

protected Map<HoodieLogBlock.HeaderMetadataType,String> generateHeader(String commit)