com.atlassian.confluence.pages.thumbnail.renderer

Class ThumbnailRenderer

java.lang.Object

com.atlassian.confluence.pages.thumbnail.renderer.ThumbnailRenderer

public class ThumbnailRenderer
extends Object

Constructor Summary

Constructors

Constructor and Description
ThumbnailRenderer(com.atlassian.core.util.thumbnail.Thumber thumber, com.google.common.base.Predicate<Dimensions> rasterBasedRenderingThreshold)

Method Summary

Modifier and Type	Method and Description
com.atlassian.core.util.thumbnail.Thumbnail	createThumbnail(File inputFile, File outputFile, int maxWidth, int maxHeight) Create a Thumbnail from the input file.
com.atlassian.core.util.thumbnail.Thumbnail	createThumbnail(InputStream inputStream, File outputFile, int maxWidth, int maxHeight) Create a Thumbnail from the input stream.
static Dimensions	imageDimensions(File inputFile)
static Dimensions	imageDimensions(InputStream inputStream)
static <T> T	withStreamConsumer(InputStream inputStream, InputStreamConsumer<T> sc) Call the InputStreamConsumer with input stream ensuring that the input stream gets closed properly afterwards.

Methods inherited from class java.lang.Object

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

Constructor Detail

ThumbnailRenderer

public ThumbnailRenderer(com.atlassian.core.util.thumbnail.Thumber thumber,
                         com.google.common.base.Predicate<Dimensions> rasterBasedRenderingThreshold)

Method Detail

createThumbnail

public com.atlassian.core.util.thumbnail.Thumbnail createThumbnail(File inputFile,
                                                                   File outputFile,
                                                                   int maxWidth,
                                                                   int maxHeight)

Create a Thumbnail from the input file. Thumbnails will always be PNG thumbnails!

Parameters:

inputFile - - The attachment that contains the image data

outputFile - - The thumbnail file that will be used to store the rendered thumbnail

maxWidth - - The maximum width of the thumbnail - this renderer maintains the aspect ratio of the original image

maxHeight - - The maximum height of the thumbnail - this renderer maintains the aspect ratio of the original image

Returns:

Thumbnail that is at most maxWidthxmaxHeight, never returns null

Throws:

ThumbnailRenderException - if the thumbnail cannot be created.

createThumbnail

public com.atlassian.core.util.thumbnail.Thumbnail createThumbnail(InputStream inputStream,
                                                                   File outputFile,
                                                                   int maxWidth,
                                                                   int maxHeight)

Create a Thumbnail from the input stream. Thumbnails will always be PNG thumbnails!

Parameters:

inputStream - - The stream that contains the image data

outputFile - - The thumbnail file that will be used to store the rendered thumbnail

maxWidth - - The maximum width of the thumbnail - this renderer maintains the aspect ratio of the original image

maxHeight - - The maximum height of the thumbnail - this renderer maintains the aspect ratio of the original image

Returns:

Thumbnail that is at most maxWidthxmaxHeight, never returns null

Throws:

ThumbnailRenderException - if the thumbnail cannot be created.

imageDimensions

public static Dimensions imageDimensions(File inputFile)

imageDimensions

public static Dimensions imageDimensions(InputStream inputStream)

withStreamConsumer

public static <T> T withStreamConsumer(InputStream inputStream,
                                       InputStreamConsumer<T> sc)

Call the InputStreamConsumer with input stream ensuring that the input stream gets closed properly afterwards.

Parameters:

inputStream - The stream containing the image data

sc - The InputStreamConsumer that consumes the file data InputStream