Package org.restlet.representation

Class ReadableRepresentation

java.lang.Object

org.restlet.representation.Variant

org.restlet.representation.RepresentationInfo

org.restlet.representation.Representation

org.restlet.representation.ChannelRepresentation

org.restlet.representation.ReadableRepresentation

public class ReadableRepresentation
extends ChannelRepresentation

Transient representation based on a readable NIO byte channel.

Author:

Jerome Louvel

Field Summary

Fields inherited from class org.restlet.representation.Representation

UNKNOWN_SIZE

Constructor Summary

Constructors

Constructor	Description
ReadableRepresentation(java.nio.channels.ReadableByteChannel readableChannel, MediaType mediaType)	Constructor.
ReadableRepresentation(java.nio.channels.ReadableByteChannel channel, MediaType mediaType, long expectedSize)	Constructor.

Method Summary

Modifier and Type	Method	Description
java.nio.channels.ReadableByteChannel	getChannel()	Returns a channel with the representation's content. If it is supported by a file, a read-only instance of FileChannel is returned. This method is ensured to return a fresh channel for each invocation unless it is a transient representation, in which case null is returned.
void	setChannel(java.nio.channels.ReadableByteChannel channel)	Sets the readable channel.
void	write(java.nio.channels.WritableByteChannel writableChannel)	Writes the representation to a byte channel.

Methods inherited from class org.restlet.representation.ChannelRepresentation

getReader, getStream, write, write

Methods inherited from class org.restlet.representation.Representation

append, exhaust, getAvailableSize, getDigest, getDisposition, getExpirationDate, getRange, getRegistration, getSize, getText, hasKnownSize, isAvailable, isEmpty, isSelectable, isTransient, release, setAvailable, setDigest, setDisposition, setExpirationDate, setListener, setRange, setSize, setTransient

Methods inherited from class org.restlet.representation.RepresentationInfo

getModificationDate, getTag, setModificationDate, setTag

Methods inherited from class org.restlet.representation.Variant

createClientInfo, equals, getCharacterSet, getEncodings, getLanguages, getLocationRef, getMediaType, hashCode, includes, isCompatible, setCharacterSet, setEncodings, setLanguages, setLocationRef, setLocationRef, setMediaType, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

ReadableRepresentation

public ReadableRepresentation(java.nio.channels.ReadableByteChannel readableChannel,
                              MediaType mediaType)

Constructor.

Parameters:

readableChannel - The representation's channel.

mediaType - The representation's media type.

ReadableRepresentation

public ReadableRepresentation(java.nio.channels.ReadableByteChannel channel,
                              MediaType mediaType,
                              long expectedSize)

Constructor.

Parameters:

channel - The representation's channel.

mediaType - The representation's media type.

expectedSize - The expected stream size.

Method Detail

getChannel

public java.nio.channels.ReadableByteChannel getChannel()
                                                 throws java.io.IOException

Description copied from class: Representation

Returns a channel with the representation's content.
If it is supported by a file, a read-only instance of FileChannel is returned.
This method is ensured to return a fresh channel for each invocation unless it is a transient representation, in which case null is returned.

Specified by:

getChannel in class Representation

Returns:

A channel with the representation's content.

Throws:

java.io.IOException

setChannel

public void setChannel(java.nio.channels.ReadableByteChannel channel)

Sets the readable channel.

Parameters:

channel - The readable channel.

write

public void write(java.nio.channels.WritableByteChannel writableChannel)
           throws java.io.IOException

Description copied from class: Representation

Writes the representation to a byte channel. This method is ensured to write the full content for each invocation unless it is a transient representation, in which case an exception is thrown.

Specified by:

write in class Representation

Parameters:

writableChannel - A writable byte channel.

Throws:

java.io.IOException