org.xnio.conduits

Interface StreamSinkConduit

All Superinterfaces:

Conduit, SinkConduit

All Known Implementing Classes:

AbstractStreamSinkConduit, BlockingStreamSinkConduit, BufferedStreamSinkConduit, DeflatingStreamSinkConduit, FixedLengthStreamSinkConduit, MessageStreamSinkConduit, NullStreamSinkConduit, StreamSinkChannelWrappingConduit, SynchronizedStreamSinkConduit

public interface StreamSinkConduit
extends SinkConduit

A sink (writable) conduit for byte streams.

Author:

David M. Lloyd

Method Summary

Methods

Modifier and Type	Method and Description
long	transferFrom(FileChannel src, long position, long count) Transfer bytes into this conduit from the given file.
long	transferFrom(StreamSourceChannel source, long count, ByteBuffer throughBuffer) Transfers bytes from the given channel source.
int	write(ByteBuffer src) Writes a sequence of bytes to this conduit from the given buffer.
long	write(ByteBuffer[] srcs, int offs, int len) Writes a sequence of bytes to this conduit from the given buffers.
int	writeFinal(ByteBuffer src) Writes some data to the conduit, with the same semantics as write(java.nio.ByteBuffer).
long	writeFinal(ByteBuffer[] srcs, int offset, int length) Writes some data to the conduit, with the same semantics as write(java.nio.ByteBuffer[], int, int).

Methods inherited from interface org.xnio.conduits.SinkConduit

awaitWritable, awaitWritable, flush, getWriteThread, isWriteResumed, isWriteShutdown, resumeWrites, setWriteReadyHandler, suspendWrites, terminateWrites, truncateWrites, wakeupWrites

Methods inherited from interface org.xnio.conduits.Conduit

getWorker

Method Detail

transferFrom

long transferFrom(FileChannel src,
                long position,
                long count)
                  throws IOException

Transfer bytes into this conduit from the given file.

Parameters:

src - the file to read from

position - the position within the file from which the transfer is to begin

count - the number of bytes to be transferred

Returns:

the number of bytes (possibly 0) that were actually transferred

Throws:

IOException - if an I/O error occurs

transferFrom

long transferFrom(StreamSourceChannel source,
                long count,
                ByteBuffer throughBuffer)
                  throws IOException

Transfers bytes from the given channel source. On entry, throughBuffer will be cleared. On exit, the buffer will be flipped for emptying, and may be empty or may contain data. If this method returns a value less than count, then the remaining data in throughBuffer may contain data read from source which must be written to this channel to complete the operation.

Parameters:

source - the source to read from

count - the number of bytes to be transferred

throughBuffer - the buffer to copy through.

Returns:

the number of bytes (possibly 0) that were actually transferred, or -1 if the end of input was reached

Throws:

IOException - if an I/O error occurs

write

int write(ByteBuffer src)
          throws IOException

Writes a sequence of bytes to this conduit from the given buffer.

Parameters:

src - the buffer containing data to write

Returns:

the number of bytes written, possibly 0

Throws:

ClosedChannelException - if this conduit's SinkConduit.terminateWrites() method was previously called

IOException - if an error occurs

write

long write(ByteBuffer[] srcs,
         int offs,
         int len)
           throws IOException

Writes a sequence of bytes to this conduit from the given buffers.

Parameters:

srcs - the buffers containing data to write

offs - the offset into the buffer array

len - the number of buffers to write

Returns:

the number of bytes written, possibly 0

Throws:

ClosedChannelException - if this conduit's SinkConduit.terminateWrites() method was previously called

IOException - if an error occurs

writeFinal

int writeFinal(ByteBuffer src)
               throws IOException

Writes some data to the conduit, with the same semantics as write(java.nio.ByteBuffer). If all the data is written out then the conduit will have its writes terminated. Semantically this method is equivalent to: int rem = src.remaining(); int written = conduit.write(src); if(written == rem) { conduit.terminateWrites() }

Parameters:

src - The data to write

Returns:

The amount of data that was actually written.

Throws:

IOException

writeFinal

long writeFinal(ByteBuffer[] srcs,
              int offset,
              int length)
                throws IOException

Writes some data to the conduit, with the same semantics as write(java.nio.ByteBuffer[], int, int). If all the data is written out then the conduit will have its writes terminated.

Parameters:

srcs - The buffers from which bytes are to be retrieved

offset - The offset within the buffer array of the first buffer from which bytes are to be retrieved; must be non-negative and no larger than srcs.length

length - The maximum number of buffers to be accessed; must be non-negative and no larger than srcs.length - offset

Returns:

The amount of data that was actually written

Throws:

IOException