com.facebook.presto.hive.util

Interface CustomSplitConverter

All Known Implementing Classes:

HudiBootstrapBaseFileSplitConverter, HudiRealtimeBootstrapBaseFileSplitConverter, HudiRealtimeSplitConverter

public interface CustomSplitConverter

Interface for Split specific implementation of conversion from Split -> customSplitInfo Map and back.

Method Summary

Modifier and Type	Method and Description
Optional<Map<String,String>>	extractCustomSplitInfo(org.apache.hadoop.mapred.FileSplit split) This method is expected to return optional.empty() if the FileSplit does not match the split converter.
Optional<org.apache.hadoop.mapred.FileSplit>	recreateFileSplitWithCustomInfo(org.apache.hadoop.mapred.FileSplit split, Map<String,String> customSplitInfo) This method is expected to merge the customSplitInfo with split to recreate the custom FileSplit.

Method Detail

extractCustomSplitInfo

Optional<Map<String,String>> extractCustomSplitInfo(org.apache.hadoop.mapred.FileSplit split)

This method is expected to return optional.empty() if the FileSplit does not match the split converter.

recreateFileSplitWithCustomInfo

Optional<org.apache.hadoop.mapred.FileSplit> recreateFileSplitWithCustomInfo(org.apache.hadoop.mapred.FileSplit split,
                                                                             Map<String,String> customSplitInfo)
                                                                      throws IOException

This method is expected to merge the customSplitInfo with split to recreate the custom FileSplit. It is expected to return optional.empty() if the customSplitInfo does not match the split converter.

Throws:

IOException