Package org.apache.pinot.query.runtime.blocks

Class TransferableBlockUtils

java.lang.Object

org.apache.pinot.query.runtime.blocks.TransferableBlockUtils

public final class TransferableBlockUtils
extends Object

Method Summary

Modifier and Type	Method	Description
static TransferableBlock	getEndOfStreamTransferableBlock()
static TransferableBlock	getEndOfStreamTransferableBlock(Map<String,String> statsMap)
static TransferableBlock	getErrorTransferableBlock(Exception e)
static TransferableBlock	getErrorTransferableBlock(Map<Integer,String> exceptions)
static boolean	isEndOfStream(TransferableBlock transferableBlock)
static Iterator<TransferableBlock>	splitBlock(TransferableBlock block, DataBlock.Type type, int maxBlockSize)	Split a block into multiple block so that each block size is within maxBlockSize.

Methods inherited from class java.lang.Object

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

Method Detail

getEndOfStreamTransferableBlock

public static TransferableBlock getEndOfStreamTransferableBlock()

getEndOfStreamTransferableBlock

public static TransferableBlock getEndOfStreamTransferableBlock(Map<String,String> statsMap)

getErrorTransferableBlock

public static TransferableBlock getErrorTransferableBlock(Exception e)

getErrorTransferableBlock

public static TransferableBlock getErrorTransferableBlock(Map<Integer,String> exceptions)

isEndOfStream

public static boolean isEndOfStream(TransferableBlock transferableBlock)

splitBlock

public static Iterator<TransferableBlock> splitBlock(TransferableBlock block,
                                                     DataBlock.Type type,
                                                     int maxBlockSize)

Split a block into multiple block so that each block size is within maxBlockSize. Currently,

• For row data block, we split for row type dataBlock.
• For columnar data block, exceptions are thrown.
• For metadata block, split is not supported.

Parameters:

block - the data block

type - type of block

maxBlockSize - Each chunk of data is estimated to be less than maxBlockSize

Returns:

a list of data block chunks