com.atlassian.confluence.pages.thumbnail
Interface ThumbnailManager

All Known Implementing Classes:

DefaultThumbnailManager

public interface ThumbnailManager

Field Summary

static String

THUMBNAIL_PATH_SUFFIX

Method Summary

boolean	checkToolkit() Deprecated. since 3.5
int	getMaxHeight() Deprecated. since 3.1 because clients should use the result of getThumbnail(com.atlassian.confluence.pages.Attachment) or getThumbnailInfo(com.atlassian.confluence.pages.Attachment), or retrieve the size from SettingsManager.getGlobalSettings().
int	getMaxWidth() Deprecated. since 3.1 because clients should use the result of getThumbnail(com.atlassian.confluence.pages.Attachment) or getThumbnailInfo(com.atlassian.confluence.pages.Attachment), or retrieve the size from SettingsManager.getGlobalSettings().
com.atlassian.core.util.thumbnail.Thumbnail	getThumbnail(Attachment attachment) Returns a thumbnail for this attachment having ensured the thumbnail exists in the filesystem, generating it only if it doesn't already exist.
InputStream	getThumbnailData(Attachment attachment) retrieves the thumbnail data (as a stream) from where it was stored in the file system
File	getThumbnailFile(Attachment attachment) returns the path to the thumbnail for this attachment
ThumbnailInfo	getThumbnailInfo(Attachment attachment) Return the details of a thumbnail for a given attachment without actually creating the thumbnail file on disk.
ThumbnailInfo	getThumbnailInfo(Attachment attachment, String rootAttachmentPath) Return the details of a thumbnail for a given attachment without actually creating the thumbnail file on disk.
Collection<com.atlassian.core.util.thumbnail.Thumbnail>	getThumbnails(Collection<Attachment> attachments)
boolean	isThumbnailable(Attachment attachment) checks the content type/mime type of the attachment to determine whether a thumbnail can be created from it
boolean	isThumbnailable(InputStream imageData)
boolean	isThumbnailable(ThumbnailInfo info)
boolean	removeThumbnail(Attachment attachment) Removes the thumbnail for the specified attachment.

Field Detail

THUMBNAIL_PATH_SUFFIX

static final String THUMBNAIL_PATH_SUFFIX

Method Detail

getThumbnails

Collection<com.atlassian.core.util.thumbnail.Thumbnail> getThumbnails(Collection<Attachment> attachments)
                                                                      throws Exception

Throws:

Exception

isThumbnailable

boolean isThumbnailable(Attachment attachment)

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

checkToolkit

@Deprecated
boolean checkToolkit()

Deprecated. since 3.5

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

getThumbnailData

InputStream getThumbnailData(Attachment attachment)
                             throws FileNotFoundException

retrieves the thumbnail data (as a stream) from where it was stored in the file system

Throws:

FileNotFoundException

getThumbnailFile

File getThumbnailFile(Attachment attachment)

returns the path to the thumbnail for this attachment

removeThumbnail

boolean removeThumbnail(Attachment attachment)

Removes the thumbnail for the specified attachment.

Returns:

true if the thumbnail was found and was successfully removed. False if no thumbnail was found or the thumbnail could not be removed.

getThumbnail

com.atlassian.core.util.thumbnail.Thumbnail getThumbnail(Attachment attachment)
                                                         throws IllegalArgumentException

Returns a thumbnail for this attachment having ensured the thumbnail exists in the filesystem, generating it only if it doesn't already exist. The size of the thumbnail is set by the application's configuration.

Throws:

IllegalArgumentException - if the attachment is an inappropriate type for thumbnailing, i.e. isThumbnailable(Attachment) returns false

getThumbnailInfo

ThumbnailInfo getThumbnailInfo(Attachment attachment)
                               throws CannotGenerateThumbnailException

Return the details of a thumbnail for a given attachment without actually creating the thumbnail file on disk. The address of the thumbnail will be rooted at the context path, rather than the base url. The thumbnail maximum size is taken from the global settings.

Returns:

thumbnail information for the attachment, never null

Throws:

CannotGenerateThumbnailException - if no thumbnail information can be generated for this thumbnail.

getThumbnailInfo

ThumbnailInfo getThumbnailInfo(Attachment attachment,
                               String rootAttachmentPath)
                               throws CannotGenerateThumbnailException

Return the details of a thumbnail for a given attachment without actually creating the thumbnail file on disk. The address of the thumbnail will be rooted at the context path, rather than the base url. The thumbnail maximum size is taken from the global settings.

Parameters:

rootAttachmentPath - path to the thumbnail, excepting the thumbnail itself. Eg the value returned by ConfluenceRenderUtils.getAttachmentRemotePath(com.atlassian.confluence.pages.Attachment).

Returns:

thumbnail information for the attachment, never null

Throws:

CannotGenerateThumbnailException - if no thumbnail information can be generated for this thumbnail.

getMaxHeight

int getMaxHeight()

Deprecated. since 3.1 because clients should use the result of getThumbnail(com.atlassian.confluence.pages.Attachment) or getThumbnailInfo(com.atlassian.confluence.pages.Attachment), or retrieve the size from SettingsManager.getGlobalSettings().

Returns:

the maximum height of thumbnails generated by getThumbnail(Attachment) and getThumbnailInfo(Attachment) without providing dimensions

getMaxWidth

int getMaxWidth()

Deprecated. since 3.1 because clients should use the result of getThumbnail(com.atlassian.confluence.pages.Attachment) or getThumbnailInfo(com.atlassian.confluence.pages.Attachment), or retrieve the size from SettingsManager.getGlobalSettings().

Returns:

the maximum width of thumbnails generated by getThumbnail(Attachment) and getThumbnailInfo(Attachment) without providing dimensions

isThumbnailable

boolean isThumbnailable(ThumbnailInfo info)

isThumbnailable

boolean isThumbnailable(InputStream imageData)