Package org.apache.hugegraph.computer.core.network.buffer

Class FileRegionBuffer

java.lang.Object

org.apache.hugegraph.computer.core.network.buffer.FileRegionBuffer

All Implemented Interfaces:

NetworkBuffer

public class FileRegionBuffer
extends java.lang.Object
implements NetworkBuffer

Constructor Summary

Constructors

Constructor	Description
FileRegionBuffer(int length)

Method Summary

Modifier and Type	Method	Description
byte[]	copyToByteArray()	Copy to a new byte[]
int	length()	Number of bytes of the data.
io.netty.buffer.ByteBuf	nettyByteBuf()	Convert the buffer into an ByteBuf object, used to write the data out.
java.nio.ByteBuffer	nioByteBuffer()	Exposes this buffer's data as an NIO ByteBuffer.
java.lang.String	path()
int	referenceCount()	Returns the reference count.
NetworkBuffer	release()	If applicable, decrease the reference count by one and deallocates the buffer if the reference count reaches zero.
NetworkBuffer	retain()	Increase the reference count by one if applicable.
io.netty.channel.ChannelFuture	transformFromChannel(io.netty.channel.socket.SocketChannel channel, java.lang.String targetPath)	Use zero-copy transform from socket channel to file

Methods inherited from class java.lang.Object

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

Constructor Detail

FileRegionBuffer

public FileRegionBuffer(int length)

Method Detail

transformFromChannel

public io.netty.channel.ChannelFuture transformFromChannel(io.netty.channel.socket.SocketChannel channel,
                                                           java.lang.String targetPath)

Use zero-copy transform from socket channel to file

Parameters:

channel -

targetPath -

Returns:

channelFuture

path

public java.lang.String path()

length

public int length()

Description copied from interface: NetworkBuffer

Number of bytes of the data.

Specified by:

length in interface NetworkBuffer

retain

public NetworkBuffer retain()

Description copied from interface: NetworkBuffer

Increase the reference count by one if applicable.

Specified by:

retain in interface NetworkBuffer

release

public NetworkBuffer release()

Description copied from interface: NetworkBuffer

If applicable, decrease the reference count by one and deallocates the buffer if the reference count reaches zero.

Specified by:

release in interface NetworkBuffer

referenceCount

public int referenceCount()

Description copied from interface: NetworkBuffer

Returns the reference count.

Specified by:

referenceCount in interface NetworkBuffer

nioByteBuffer

public java.nio.ByteBuffer nioByteBuffer()

Description copied from interface: NetworkBuffer

Exposes this buffer's data as an NIO ByteBuffer. Changing the position and limit of the returned ByteBuffer should not affect the content of this buffer.

Specified by:

nioByteBuffer in interface NetworkBuffer

nettyByteBuf

public io.netty.buffer.ByteBuf nettyByteBuf()

Description copied from interface: NetworkBuffer

Convert the buffer into an ByteBuf object, used to write the data out.

Specified by:

nettyByteBuf in interface NetworkBuffer

copyToByteArray

public byte[] copyToByteArray()

Description copied from interface: NetworkBuffer

Copy to a new byte[]

Specified by:

copyToByteArray in interface NetworkBuffer