org.restlet.ext.nio.internal.channel

Class ReadableSizedSelectionChannel

java.lang.Object

org.restlet.ext.nio.internal.channel.WrapperChannel<T>

org.restlet.ext.nio.internal.channel.WrapperSelectionChannel<T>

org.restlet.ext.nio.internal.channel.BufferedSelectionChannel<ReadableSelectionChannel>

org.restlet.ext.nio.internal.channel.ReadableBufferedChannel

org.restlet.ext.nio.internal.channel.ReadableSizedSelectionChannel

All Implemented Interfaces:

Closeable, AutoCloseable, Channel, ReadableByteChannel, BlockableChannel, ReadableSelectionChannel, SelectionChannel, BufferProcessor, CompletionListener

public class ReadableSizedSelectionChannel
extends ReadableBufferedChannel

Readable byte channel enforcing a maximum size and wrapping a selectable channel.

Author:

Jerome Louvel

Constructor Summary

Constructors

Constructor and Description
ReadableSizedSelectionChannel(CompletionListener completionListener, Buffer buffer, ReadableSelectionChannel source, long availableSize, WakeupListener wakeupListener) Constructor.

Method Summary

Modifier and Type	Method and Description
protected long	getAvailableSize() Returns the remaining size that should be read from the source channel.
int	onDrain(Buffer buffer, int maxDrained, Object... args) Drains the byte buffer.
protected void	setAvailableSize(long availableSize) Sets the remaining size that should be read from the source channel.

Methods inherited from class org.restlet.ext.nio.internal.channel.ReadableBufferedChannel

couldDrain, couldFill, isEndReached, onFill, onMessageCompleted, read, setEndReached

Methods inherited from class org.restlet.ext.nio.internal.channel.BufferedSelectionChannel

canLoop, close, getBuffer, onFillEof, postProcess, preProcess

Methods inherited from class org.restlet.ext.nio.internal.channel.WrapperSelectionChannel

getRegistration, isBlocking, setRegistration, toString

Methods inherited from class org.restlet.ext.nio.internal.channel.WrapperChannel

getWrappedChannel, isOpen

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.restlet.engine.io.SelectionChannel

getRegistration

Methods inherited from interface org.restlet.engine.io.BlockableChannel

isBlocking

Methods inherited from interface java.nio.channels.Channel

close, isOpen

Constructor Detail

ReadableSizedSelectionChannel

public ReadableSizedSelectionChannel(CompletionListener completionListener,
                                     Buffer buffer,
                                     ReadableSelectionChannel source,
                                     long availableSize,
                                     WakeupListener wakeupListener)

Constructor.

Parameters:

completionListener - The listener to callback upon reading completion.

buffer - The source byte buffer, typically remaining from previous read processing.

source - The source channel.

availableSize - The total available size that can be read from the source channel.

wakeupListener - The wakeup listener that will be notified.

Method Detail

getAvailableSize

protected long getAvailableSize()

Returns the remaining size that should be read from the source channel.

Returns:

The remaining size that should be read from the source channel.

onDrain

public int onDrain(Buffer buffer,
                   int maxDrained,
                   Object... args)
            throws IOException

Description copied from class: ReadableBufferedChannel

Drains the byte buffer.

Specified by:

onDrain in interface BufferProcessor

Overrides:

onDrain in class ReadableBufferedChannel

Parameters:

buffer - The IO buffer to drain.

maxDrained - The maximum number of bytes drained by this call.

args - The optional arguments to pass back to the callbacks.

Returns:

The number of bytes drained.

Throws:

IOException

setAvailableSize

protected void setAvailableSize(long availableSize)
                         throws IOException

Sets the remaining size that should be read from the source channel.

Parameters:

availableSize - The remaining size that should be read from the source channel.

Throws:

IOException