org.dcache.xrootd.stream

Class AbstractChunkedReadvResponse

java.lang.Object

org.dcache.xrootd.stream.AbstractChunkedReadvResponse

All Implemented Interfaces:

ChunkedResponse

Direct Known Subclasses:

ChunkedFileChannelReadvResponse, ChunkedFileReadvResponse

public abstract class AbstractChunkedReadvResponse
extends Object
implements ChunkedResponse

Field Summary

Fields

Modifier and Type	Field and Description
protected int	index
protected int	maxFrameSize
protected ReadVRequest	request
protected GenericReadRequestMessage.EmbeddedReadRequest[]	requests

Constructor Summary

Constructors

Constructor and Description
AbstractChunkedReadvResponse(ReadVRequest request, int maxFrameSize)

Method Summary

Modifier and Type	Method and Description
void	close() Releases the resources associated with the stream.
XrootdRequest	getRequest() Returns the request this is a response to.
protected abstract long	getSize(int fd)
boolean	isEndOfInput() Return true if and only if there is no data left in the stream and the stream has reached its end.
ReadVResponse	nextChunk(io.netty.buffer.ByteBufAllocator alloc) Fetches a chunk from the stream.
protected abstract io.netty.buffer.ByteBuf	read(io.netty.buffer.ByteBufAllocator alloc, int fd, long position, int length)

Methods inherited from class java.lang.Object

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

Field Detail

request

protected final ReadVRequest request

maxFrameSize

protected final int maxFrameSize

requests

protected final GenericReadRequestMessage.EmbeddedReadRequest[] requests

index

protected int index

Constructor Detail

AbstractChunkedReadvResponse

public AbstractChunkedReadvResponse(ReadVRequest request,
                                    int maxFrameSize)

Method Detail

getRequest

public XrootdRequest getRequest()

Description copied from interface: ChunkedResponse

Returns the request this is a response to.

Specified by:

getRequest in interface ChunkedResponse

nextChunk

public ReadVResponse nextChunk(io.netty.buffer.ByteBufAllocator alloc)
                        throws Exception

Description copied from interface: ChunkedResponse

Fetches a chunk from the stream.

Specified by:

nextChunk in interface ChunkedResponse

Returns:

the fetched chunk

Throws:

Exception

isEndOfInput

public boolean isEndOfInput()
                     throws Exception

Description copied from interface: ChunkedResponse

Return true if and only if there is no data left in the stream and the stream has reached its end.

Specified by:

isEndOfInput in interface ChunkedResponse

Throws:

Exception

close

public void close()
           throws Exception

Description copied from interface: ChunkedResponse

Releases the resources associated with the stream.

Specified by:

close in interface ChunkedResponse

Throws:

Exception

getSize

protected abstract long getSize(int fd)
                         throws IOException,
                                XrootdException

Throws:

IOException

XrootdException

read

protected abstract io.netty.buffer.ByteBuf read(io.netty.buffer.ByteBufAllocator alloc,
                                                int fd,
                                                long position,
                                                int length)
                                         throws IOException,
                                                XrootdException

Throws:

IOException

XrootdException