org.restlet.engine.local

Class ZipEntryRepresentation

java.lang.Object

org.restlet.representation.Variant

org.restlet.representation.RepresentationInfo

org.restlet.representation.Representation

org.restlet.representation.StreamRepresentation

org.restlet.engine.local.ZipEntryRepresentation

public class ZipEntryRepresentation
extends StreamRepresentation

An entry in a Zip/JAR file. It is very important release() is called to close the underlying Zip file.

Author:

Remi Dewitte remi@gide.net

Field Summary

Fields

Modifier and Type	Field and Description
protected ZipEntry	entry The Zip entry.
protected ZipFile	zipFile The Zip file.

Fields inherited from class org.restlet.representation.Representation

UNKNOWN_SIZE

Constructor Summary

Constructors

Constructor and Description
ZipEntryRepresentation(MediaType mediaType, ZipFile zipFile, ZipEntry entry, int timeToLive) Constructor.

Method Summary

Modifier and Type	Method and Description
InputStream	getStream() Returns a stream with the representation's content.
void	release() Releases the representation and all associated objects like streams, channels or files which are used to produce its content, transient or not.
void	write(OutputStream outputStream) Writes the representation to a byte stream.

Methods inherited from class org.restlet.representation.StreamRepresentation

getChannel, getReader, 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, 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

Field Detail

entry

protected final ZipEntry entry

The Zip entry.

zipFile

protected final ZipFile zipFile

The Zip file.

Constructor Detail

ZipEntryRepresentation

public ZipEntryRepresentation(MediaType mediaType,
                              ZipFile zipFile,
                              ZipEntry entry,
                              int timeToLive)

Constructor.

Parameters:

mediaType - The entry media type.

zipFile - The parent Zip archive file.

entry - The Zip entry.

timeToLive - The time to live before it expires (in seconds).

Method Detail

getStream

public InputStream getStream()
                      throws IOException

Description copied from class: Representation

Returns a stream with the representation's content. This method is ensured to return a fresh stream for each invocation unless it is a transient representation, in which case null is returned.

Specified by:

getStream in class Representation

Returns:

A stream with the representation's content.

Throws:

IOException

release

public void release()

Description copied from class: Representation

Releases the representation and all associated objects like streams, channels or files which are used to produce its content, transient or not. This method must be systematically called when the representation is no longer intended to be used. The framework automatically calls back this method via its connectors on the server-side when sending responses with an entity and on the client-side when sending a request with an entity. By default, it calls the Representation.setAvailable(boolean) method with "false" as a value.

Note that for transient socket-bound representations, calling this method after consuming the whole content shouldn't prevent the reuse of underlying socket via persistent connections for example. However, if the content hasn't been read, or has been partially read, the impact should be to discard the remaining content and to close the underlying connections.

Therefore, if you are not interested in the content, or in the remaining content, you should first call the Representation.exhaust() method or if this could be too costly, you should instead explicitly abort the parent request and the underlying connections using the Request.abort() method or a shortcut one like ServerResource.abort() or Response.abort().

Overrides:

release in class Representation

write

public void write(OutputStream outputStream)
           throws IOException

Description copied from class: Representation

Writes the representation to a byte stream. 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.

Note that the class implementing this method shouldn't flush or close the given OutputStream after writing to it as this will be handled by the Restlet connectors automatically.

Specified by:

write in class Representation

Parameters:

outputStream - The output stream.

Throws:

IOException