Package org.apache.pinot.segment.local.startree.v2.builder

Class StarTreeIndexSeparator

java.lang.Object

org.apache.pinot.segment.local.startree.v2.builder.StarTreeIndexSeparator

All Implemented Interfaces:

Closeable, AutoCloseable

public class StarTreeIndexSeparator
extends Object
implements Closeable

The StarTreeIndexSeparator pulls out the individual star-trees from the common star-tree index file

Constructor Summary

Constructors

Constructor	Description
StarTreeIndexSeparator(File indexMapFile, File indexFile, org.apache.commons.configuration.PropertiesConfiguration metadataProperties)

Method Summary

Modifier and Type	Method	Description
void	close()
List<StarTreeV2BuilderConfig>	extractBuilderConfigs(org.apache.commons.configuration.PropertiesConfiguration metadataProperties)	Extract the list of StarTreeV2BuilderConfig for each of the star-tree present in the given metadata properties.
List<Integer>	extractTotalDocsList(org.apache.commons.configuration.PropertiesConfiguration metadataProperties)
int	separate(File starTreeOutputDir, StarTreeV2BuilderConfig builderConfig)	Extract star-tree index files of the star-tree represented by the builderConfig.

Methods inherited from class java.lang.Object

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

Constructor Detail

StarTreeIndexSeparator

public StarTreeIndexSeparator(File indexMapFile,
                              File indexFile,
                              org.apache.commons.configuration.PropertiesConfiguration metadataProperties)
                       throws IOException

Throws:

IOException

Method Detail

extractTotalDocsList

public List<Integer> extractTotalDocsList(org.apache.commons.configuration.PropertiesConfiguration metadataProperties)

extractBuilderConfigs

public List<StarTreeV2BuilderConfig> extractBuilderConfigs(org.apache.commons.configuration.PropertiesConfiguration metadataProperties)

Extract the list of StarTreeV2BuilderConfig for each of the star-tree present in the given metadata properties.

Parameters:

metadataProperties - index metadata properties

Returns:

List of StarTreeV2BuilderConfig

separate

public int separate(File starTreeOutputDir,
                    StarTreeV2BuilderConfig builderConfig)
             throws IOException

Extract star-tree index files of the star-tree represented by the builderConfig. The extracted star-tree index files are written to the provided starTreeOutputDir.

Parameters:

starTreeOutputDir - output directory for extracted star-trees

builderConfig - StarTreeV2BuilderConfig of the star-tree to separate

Returns:

if star-tree exist then total docs in the separated tree, else -1

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Throws:

IOException