org.alfresco.repo.content.transform.magick

Class AbstractImageMagickContentTransformerWorker

java.lang.Object

org.alfresco.repo.content.transform.ContentTransformerHelper

org.alfresco.repo.content.transform.magick.AbstractImageMagickContentTransformerWorker

All Implemented Interfaces:

ContentTransformerWorker, org.springframework.beans.factory.InitializingBean

Direct Known Subclasses:

ImageMagickContentTransformerWorker

public abstract class AbstractImageMagickContentTransformerWorker
extends ContentTransformerHelper
implements ContentTransformerWorker, org.springframework.beans.factory.InitializingBean

Abstract helper for transformations based on ImageMagick

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	MIMETYPE_IMAGE_PREFIX the prefix for mimetypes supported by the transformer

Constructor Summary

Constructors

Constructor and Description
AbstractImageMagickContentTransformerWorker()

Method Summary

Methods

Modifier and Type	Method and Description
void	afterPropertiesSet() Checks for the JMagick and ImageMagick dependencies, using the common transformation method to check that the sample image can be converted.
boolean	isAvailable() Checks if this worker is available.
static boolean	isSupported(java.lang.String mimetype) Some image formats are not supported by ImageMagick, or at least appear not to work.
boolean	isTransformable(java.lang.String sourceMimetype, java.lang.String targetMimetype, TransformationOptions options) Supports image to image conversion, but only if the JMagick library and required libraries are available.
protected void	setAvailable(boolean available) Make the transformer available
void	transform(org.alfresco.service.cmr.repository.ContentReader reader, org.alfresco.service.cmr.repository.ContentWriter writer, TransformationOptions options)
protected abstract void	transformInternal(java.io.File sourceFile, java.io.File targetFile, TransformationOptions options) Transform the image content from the source file to the target file

Methods inherited from class org.alfresco.repo.content.transform.ContentTransformerHelper

getMimetype, getMimetypeService, isExplicitTransformation, isSupportedTransformation, setExplicitTransformations, setMimetypeService, setSupportedTransformations

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.alfresco.repo.content.transform.ContentTransformerWorker

getVersionString

Field Detail

MIMETYPE_IMAGE_PREFIX

public static final java.lang.String MIMETYPE_IMAGE_PREFIX

the prefix for mimetypes supported by the transformer

See Also:

Constant Field Values

Constructor Detail

AbstractImageMagickContentTransformerWorker

public AbstractImageMagickContentTransformerWorker()

Method Detail

isAvailable

public boolean isAvailable()

Description copied from interface: ContentTransformerWorker

Checks if this worker is available.

Specified by:

isAvailable in interface ContentTransformerWorker

Returns:

Returns true if the transformer is functioning otherwise false

setAvailable

protected void setAvailable(boolean available)

Make the transformer available

Parameters:

available -

afterPropertiesSet

public void afterPropertiesSet()

Checks for the JMagick and ImageMagick dependencies, using the common transformation method to check that the sample image can be converted.

If initialization is successful, then autoregistration takes place.

Specified by:

afterPropertiesSet in interface org.springframework.beans.factory.InitializingBean

isSupported

public static boolean isSupported(java.lang.String mimetype)

Some image formats are not supported by ImageMagick, or at least appear not to work.

Parameters:

mimetype - the mimetype to check

Returns:

Returns true if ImageMagic can handle the given image format

isTransformable

public boolean isTransformable(java.lang.String sourceMimetype,
                      java.lang.String targetMimetype,
                      TransformationOptions options)

Supports image to image conversion, but only if the JMagick library and required libraries are available.

Specified by:

isTransformable in interface ContentTransformerWorker

See Also:

ContentTransformer.isTransformable(String, String, TransformationOptions)

transform

public final void transform(org.alfresco.service.cmr.repository.ContentReader reader,
             org.alfresco.service.cmr.repository.ContentWriter writer,
             TransformationOptions options)
                     throws java.lang.Exception

Specified by:

transform in interface ContentTransformerWorker

Throws:

java.lang.Exception

See Also:

#transformInternal(File, File)

transformInternal

protected abstract void transformInternal(java.io.File sourceFile,
                     java.io.File targetFile,
                     TransformationOptions options)
                                   throws java.lang.Exception

Transform the image content from the source file to the target file

Parameters:

sourceFile - the source of the transformation

targetFile - the target of the transformation

options - the transformation options supported by ImageMagick

Throws:

java.lang.Exception