com.atlassian.confluence.pages.thumbnail
Class AbstractThumbnailManager

java.lang.Object
  com.atlassian.confluence.pages.thumbnail.AbstractThumbnailManager

All Implemented Interfaces:

ThumbnailManager

Direct Known Subclasses:

WebDavThumbnailManager

public class AbstractThumbnailManager
extends Object
implements ThumbnailManager

Field Summary

protected org.apache.log4j.Category	log
protected Thumber	thumber

Fields inherited from interface com.atlassian.confluence.pages.thumbnail.ThumbnailManager

THUMBNAIL_PATH_SUFFIX

Constructor Summary

AbstractThumbnailManager()

Method Summary

boolean	checkToolkit() checks whether the users system has AWT toolkit required to create thumbnails
int	getMaxHeight()
int	getMaxWidth()
Thumber	getThumber()
Thumbnail	getThumbnail(Attachment attachment) Retrieves the thumbnail for attachment
InputStream	getThumbnailData(Attachment attachment) We only store a thumbnail of the latest version of an image attachment in the format thumb_foo.jpg When new versions of the attachment are added, this thumbnail is removed and regenerated the next time its requested.
File	getThumbnailFile(Attachment attachment) returns the path to the thumbnail for this attachment
Collection	getThumbnails(Collection attachments) not currently used
protected File	getThumbnailsFolder(Attachment attachment)
boolean	isThumbnailable(Attachment attachment) checks the mime type of the attachment to determine whether a thumbnail can be created from it
void	setAttachmentManager(AttachmentManager attachmentManager)
void	setBootstrapManager(BootstrapManager bootstrapManager)
void	setSettingsManager(SettingsManager settingsManager)
void	setThumber(Thumber thumber)

Methods inherited from class java.lang.Object

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

Field Detail

log

protected org.apache.log4j.Category log

thumber

protected Thumber thumber

Constructor Detail

AbstractThumbnailManager

public AbstractThumbnailManager()

Method Detail

isThumbnailable

public boolean isThumbnailable(Attachment attachment)

Description copied from interface: ThumbnailManager

checks the mime type of the attachment to determine whether a thumbnail can be created from it

Specified by:

isThumbnailable in interface ThumbnailManager

Returns:

checkToolkit

public boolean checkToolkit()

Description copied from interface: ThumbnailManager

checks whether the users system has AWT toolkit required to create thumbnails

Specified by:

checkToolkit in interface ThumbnailManager

Returns:

getThumbnailData

public InputStream getThumbnailData(Attachment attachment)
                             throws FileNotFoundException

We only store a thumbnail of the latest version of an image attachment in the format thumb_foo.jpg When new versions of the attachment are added, this thumbnail is removed and regenerated the next time its requested.

Specified by:

getThumbnailData in interface ThumbnailManager

Parameters:

attachment -

Returns:

Throws:

FileNotFoundException - NOTE: Dodgy, but this function assumes that the thumbnail has been created i.e getThumbnail has been called.

getThumbnail

public Thumbnail getThumbnail(Attachment attachment)
                       throws MalformedURLException,
                              FileNotFoundException

Retrieves the thumbnail for attachment

Specified by:

getThumbnail in interface ThumbnailManager

Parameters:

attachment - the Attachment the thumbnail belongs to

Returns:

a Thumbnail representing the image

Throws:

MalformedURLException

FileNotFoundException

IllegalArgumentException - if a thumbnail cannot be created from attachment

setBootstrapManager

public void setBootstrapManager(BootstrapManager bootstrapManager)

getThumbnails

public Collection getThumbnails(Collection attachments)
                         throws Exception

not currently used

Specified by:

getThumbnails in interface ThumbnailManager

Parameters:

attachments -

Returns:

Throws:

Exception

getThumbnailsFolder

protected File getThumbnailsFolder(Attachment attachment)

getThumbnailFile

public File getThumbnailFile(Attachment attachment)

Description copied from interface: ThumbnailManager

returns the path to the thumbnail for this attachment

Specified by:

getThumbnailFile in interface ThumbnailManager

Returns:

getMaxHeight

public int getMaxHeight()

Specified by:

getMaxHeight in interface ThumbnailManager

Returns:

the maximum height of the generated thumbnail

getMaxWidth

public int getMaxWidth()

Specified by:

getMaxWidth in interface ThumbnailManager

Returns:

the maximum width of the generated thumbnail

getThumber

public Thumber getThumber()

setThumber

public void setThumber(Thumber thumber)

setSettingsManager

public void setSettingsManager(SettingsManager settingsManager)

setAttachmentManager

public void setAttachmentManager(AttachmentManager attachmentManager)