magoffin.matt.ma2.image.iio
Class JpegMediaHandler

java.lang.Object
  magoffin.matt.ma2.support.AbstractMediaHandler
      magoffin.matt.ma2.image.BaseImageMediaHandler
          magoffin.matt.ma2.image.awt.BaseAwtImageMediaHandler
              magoffin.matt.ma2.image.iio.BaseImageIOMediaHandler
                  magoffin.matt.ma2.image.iio.JpegMediaHandler

All Implemented Interfaces:

MediaHandler, MediaHandlerDelegate

Direct Known Subclasses:

PngMediaHandler

public class JpegMediaHandler
extends BaseImageIOMediaHandler
implements MediaHandlerDelegate

JPEG media handler using ImageIO.

Version:

$Revision: 43 $ $Date: 2007-10-21 11:10:01 +1300 (Sun, 21 Oct 2007) $

Author:

matt.magoffin

Field Summary

static java.lang.String

FORMAT_NAME_IIO_JPEG_1_0 The ImageIO JPEG format name constant.

Fields inherited from class magoffin.matt.ma2.image.BaseImageMediaHandler

DEFAULT_ORIENTATION_180_VALUE, DEFAULT_ORIENTATION_90_CLOCKWISE_VALUE, DEFAULT_ORIENTATION_90_COUNTER_CLOCKWISE_VALUE, DEFAULT_ORIENTATION_METADATA_KEY, ROTATE_180, ROTATE_90_CCW, ROTATE_90_CW

Fields inherited from class magoffin.matt.ma2.support.AbstractMediaHandler

log, METADATA_PARAMETER_KEY

Constructor Summary

	JpegMediaHandler() Default constructor.
protected	JpegMediaHandler(java.lang.String mimeType) Construct with a different MIME type.

Method Summary

MediaItem	createNewMediaItem(java.io.File inputFile) Create a new instance of MediaItem from a File.
java.lang.String	getDelegateFileExtension(org.springframework.core.io.Resource mediaResource, java.lang.String mimeType, MediaItem item, MediaRequest request) Get the preferred file extension for this handler.
void	handleDelegateMediaRequest(org.springframework.core.io.Resource mediaResource, java.lang.String mimeType, MediaItem item, MediaRequest request, MediaResponse response) Handle a delegate media request.
void	handleMediaRequest(MediaItem item, MediaRequest request, MediaResponse response) Handle a media request by processing the specified media item and writing the result to MediaResponse.getOutputStream().

Methods inherited from class magoffin.matt.ma2.image.iio.BaseImageIOMediaHandler

defaultHandleDelegateRequest, defaultHandleRequest, getBufferedImage, getImageMediaHelper, setImageMediaHelper, setupBaseItemProperties

Methods inherited from class magoffin.matt.ma2.image.awt.BaseAwtImageMediaHandler

getAwtMediaEffectMap, getEffect, setAwtMediaEffectMap

Methods inherited from class magoffin.matt.ma2.image.BaseImageMediaHandler

getOrientation180Value, getOrientation90ClockwiseValue, getOrientation90CounterClockwiseValue, getOrientationMetadataKey, handleMetadata, needToRotate, setOrientation180Value, setOrientation90ClockwiseValue, setOrientation90CounterClockwiseValue, setOrientationMetadataKey

Methods inherited from class magoffin.matt.ma2.support.AbstractMediaHandler

applyEffects, createMetadataList, defaultHandleRequestOriginal, getDomainObjectFactory, getFileExtension, getMediaBiz, getMediaMetadataInstance, getMime, getNoWatermarkSizes, getPreferredFileExtension, getRequestEffects, getSmetaPropertyMap, getUserBiz, needToAlter, setDomainObjectFactory, setMediaBiz, setMime, setNoWatermarkSizes, setPreferredFileExtension, setSmetaPropertyMap, setUserBiz

Methods inherited from class java.lang.Object

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

Field Detail

FORMAT_NAME_IIO_JPEG_1_0

public static final java.lang.String FORMAT_NAME_IIO_JPEG_1_0

The ImageIO JPEG format name constant.

See Also:

Constant Field Values

Constructor Detail

JpegMediaHandler

public JpegMediaHandler()

Default constructor.

JpegMediaHandler

protected JpegMediaHandler(java.lang.String mimeType)

Construct with a different MIME type.

Parameters:

mimeType - the MIME type

Method Detail

createNewMediaItem

public MediaItem createNewMediaItem(java.io.File inputFile)

Description copied from interface: MediaHandler

Create a new instance of MediaItem from a File.

This method will be called when a new media item is to be added into Matte. This method should populate as much information as it can extract from the file into a MediaItem instance, including populating any Metadata it can extract from the file.

This method does not need to persist the MediaItem instance, just populate it and return it.

Specified by:

createNewMediaItem in interface MediaHandler

Parameters:

inputFile - the file to create the media item from

Returns:

an instance of MediaItem

handleDelegateMediaRequest

public void handleDelegateMediaRequest(org.springframework.core.io.Resource mediaResource,
                                       java.lang.String mimeType,
                                       MediaItem item,
                                       MediaRequest request,
                                       MediaResponse response)

Description copied from interface: MediaHandlerDelegate

Handle a delegate media request.

The mediaResource is not the original MediaItem resource, rather it is the media resource extracted from the MediaItem, e.g. the metadata resource.

Specified by:

handleDelegateMediaRequest in interface MediaHandlerDelegate

Parameters:

mediaResource - the media data to process

mimeType - the MIME type of the media data in mediaResource

item - the MediaItem being processed

request - the request

response - the response

getDelegateFileExtension

public java.lang.String getDelegateFileExtension(org.springframework.core.io.Resource mediaResource,
                                                 java.lang.String mimeType,
                                                 MediaItem item,
                                                 MediaRequest request)

Description copied from interface: MediaHandlerDelegate

Get the preferred file extension for this handler.

The mediaResource is not the original MediaItem resource, rather it is the media resource extracted from the MediaItem, e.g. the metadata resource.

Some handlers might return a different file extension for a given request then the default file extension for their type (for example a PNG image handler that returns JPEG images when resizing the images.

Specified by:

getDelegateFileExtension in interface MediaHandlerDelegate

Parameters:

mediaResource - the media data to process

mimeType - the MIME type of the media data in mediaResource

item - the MediaItem being processed

request - the request

Returns:

a file extension, without the period

handleMediaRequest

public void handleMediaRequest(MediaItem item,
                               MediaRequest request,
                               MediaResponse response)

Description copied from interface: MediaHandler

Handle a media request by processing the specified media item and writing the result to MediaResponse.getOutputStream().

Specified by:

handleMediaRequest in interface MediaHandler

Parameters:

item - the media item to process

request - the request

response - the response