org.apache.flink.runtime.io.network.partition.hybrid

类 InternalRegionWriteReadUtils

java.lang.Object

org.apache.flink.runtime.io.network.partition.hybrid.InternalRegionWriteReadUtils

public class InternalRegionWriteReadUtils
extends Object

Utils for read and write HsFileDataIndexImpl.InternalRegion.

构造器概要

构造器

构造器和说明
InternalRegionWriteReadUtils()

方法概要

限定符和类型	方法和说明
static ByteBuffer	allocateAndConfigureBuffer(int bufferSize) Allocate a buffer with specific size and configure it to native order.
static org.apache.flink.runtime.io.network.partition.hybrid.HsFileDataIndexImpl.InternalRegion	readRegionFromFile(FileChannel channel, ByteBuffer headerBuffer, long position) Read HsFileDataIndexImpl.InternalRegion from FileChannel.
static void	writeRegionToFile(FileChannel channel, ByteBuffer headerBuffer, org.apache.flink.runtime.io.network.partition.hybrid.HsFileDataIndexImpl.InternalRegion region) Write HsFileDataIndexImpl.InternalRegion to FileChannel.

从类继承的方法 java.lang.Object

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

构造器详细资料

InternalRegionWriteReadUtils

public InternalRegionWriteReadUtils()

方法详细资料

allocateAndConfigureBuffer

public static ByteBuffer allocateAndConfigureBuffer(int bufferSize)

Allocate a buffer with specific size and configure it to native order.

参数:

bufferSize - the size of buffer to allocate.

返回:

a native order buffer with expected size.

writeRegionToFile

public static void writeRegionToFile(FileChannel channel,
                                     ByteBuffer headerBuffer,
                                     org.apache.flink.runtime.io.network.partition.hybrid.HsFileDataIndexImpl.InternalRegion region)
                              throws IOException

Write HsFileDataIndexImpl.InternalRegion to FileChannel.

参数:

channel - the file's channel to write.

headerBuffer - the buffer to write HsFileDataIndexImpl.InternalRegion's header.

region - the region to be written to channel.

抛出:

IOException

readRegionFromFile

public static org.apache.flink.runtime.io.network.partition.hybrid.HsFileDataIndexImpl.InternalRegion readRegionFromFile(FileChannel channel,
                                                                                                                         ByteBuffer headerBuffer,
                                                                                                                         long position)
                                                                                                                  throws IOException

Read HsFileDataIndexImpl.InternalRegion from FileChannel.

参数:

channel - the channel to read.

headerBuffer - the buffer to read HsFileDataIndexImpl.InternalRegion's header.

position - position to start read.

返回:

the HsFileDataIndexImpl.InternalRegion that read from this channel.

抛出:

IOException