Package org.apache.pinot.common.datablock

Class DataBlockUtils

java.lang.Object

org.apache.pinot.common.datablock.DataBlockUtils

public final class DataBlockUtils
extends Object

Method Summary

Modifier and Type	Method	Description
static int	computeColumnOffsets(DataSchema dataSchema, int[] columnOffsets)	Given a DataSchema, compute each column's offset and fill them into the passed in array, then return the row size in bytes.
static void	computeColumnSizeInBytes(DataSchema dataSchema, int[] columnSizes)	Given a DataSchema, compute each column's size and fill them into the passed in array.
static org.roaringbitmap.RoaringBitmap[]	extractNullBitmaps(DataBlock dataBlock)
static Object[]	extractRowFromDataBlock(DataBlock dataBlock, int rowId, DataSchema.ColumnDataType[] dataTypes, org.roaringbitmap.RoaringBitmap[] nullBitmaps)
static List<Object[]>	extractRows(DataBlock dataBlock)
static DataBlock	getDataBlock(ByteBuffer byteBuffer)
static MetadataBlock	getEndOfStreamDataBlock()
static MetadataBlock	getErrorDataBlock(Exception e)
static MetadataBlock	getErrorDataBlock(Map<Integer,String> exceptions)
static MetadataBlock	getNoOpBlock()

Methods inherited from class java.lang.Object

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

Method Detail

getErrorDataBlock

public static MetadataBlock getErrorDataBlock(Exception e)

getErrorDataBlock

public static MetadataBlock getErrorDataBlock(Map<Integer,String> exceptions)

getEndOfStreamDataBlock

public static MetadataBlock getEndOfStreamDataBlock()

getNoOpBlock

public static MetadataBlock getNoOpBlock()

getDataBlock

public static DataBlock getDataBlock(ByteBuffer byteBuffer)
                              throws IOException

Throws:

IOException

extractRows

public static List<Object[]> extractRows(DataBlock dataBlock)

computeColumnOffsets

public static int computeColumnOffsets(DataSchema dataSchema,
                                       int[] columnOffsets)

Given a DataSchema, compute each column's offset and fill them into the passed in array, then return the row size in bytes.

Parameters:

dataSchema - data schema.

columnOffsets - array of column offsets.

Returns:

row size in bytes.

computeColumnSizeInBytes

public static void computeColumnSizeInBytes(DataSchema dataSchema,
                                            int[] columnSizes)

Given a DataSchema, compute each column's size and fill them into the passed in array.

Parameters:

dataSchema - data schema.

columnSizes - array of column size.

extractNullBitmaps

public static org.roaringbitmap.RoaringBitmap[] extractNullBitmaps(DataBlock dataBlock)

extractRowFromDataBlock

public static Object[] extractRowFromDataBlock(DataBlock dataBlock,
                                               int rowId,
                                               DataSchema.ColumnDataType[] dataTypes,
                                               org.roaringbitmap.RoaringBitmap[] nullBitmaps)