org.alfresco.repo.content.transform

Class OOXMLThumbnailContentTransformer

java.lang.Object

org.alfresco.repo.content.transform.ContentTransformerHelper

org.alfresco.repo.content.transform.AbstractContentTransformerLimits

org.alfresco.repo.content.transform.AbstractContentTransformer2

org.alfresco.repo.content.transform.OOXMLThumbnailContentTransformer

All Implemented Interfaces:

ContentWorker, ContentTransformer, org.springframework.beans.factory.Aware, org.springframework.beans.factory.BeanNameAware

public class OOXMLThumbnailContentTransformer
extends AbstractContentTransformer2

Extracts out Thumbnail JPEGs from OOXML files for thumbnailing & previewing. This transformer will only work for OOXML files where thumbnailing was enabled, which isn't on by default on Windows, but is more common on Mac.

Since:

4.0.1

Author:

Nick Burch

Field Summary

Fields

Modifier and Type	Field and Description
static String	NO_THUMBNAIL_PRESENT_IN_FILE

Fields inherited from class org.alfresco.repo.content.transform.AbstractContentTransformerLimits

transformerDebug

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

transformerConfig

Constructor Summary

Constructors

Constructor and Description
OOXMLThumbnailContentTransformer()

Method Summary

Modifier and Type	Method and Description
String	getComments(boolean available) Overridden to supply a comment or String of commented out transformation properties that specify any (hard coded or implied) supported transformations.
boolean	isTransformable(String sourceMimetype, String targetMimetype, TransformationOptions options)
protected void	transformInternal(org.alfresco.service.cmr.repository.ContentReader reader, org.alfresco.service.cmr.repository.ContentWriter writer, TransformationOptions options) Method to be implemented by subclasses wishing to make use of the common infrastructural code provided by this class.

Methods inherited from class org.alfresco.repo.content.transform.AbstractContentTransformer2

checkTransformable, getExecutorService, getRetryTransformOnDifferentMimeType, getStrictMimeTypeCheck, getTransformationTime, getTransformationTime, isTransformationLimitedInternally, recordError, recordTime, recordTime, register, setAdditionalThreadTimout, setExecutorService, setMetadataExtracterConfig, setRegisterTransformer, setRegistry, setRetryTransformOnDifferentMimeType, setStrictMimeTypeCheck, setUseTimeoutThread, toString, transform, transform, transform

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

getLimits, getLimits, getLimits, getMaxPages, getMaxSourceSizeKBytes, getMaxSourceSizeKBytes, getPageLimit, getReadLimitKBytes, getReadLimitTimeMs, getTimeoutMs, isPageLimitSupported, isTransformable, isTransformableMimetype, isTransformableSize, setLimits, setMaxPages, setMaxSourceSizeKBytes, setMimetypeLimits, setPageLimit, setPageLimitsSupported, setReaderLimits, setReadLimitKBytes, setReadLimitTimeMs, setTimeoutMs, setTransformerDebug

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

deprecatedSetter, equals, getBeanName, getCommentsOnlySupports, getExtensionOrAny, getMimetype, getMimetypeService, getName, getSimpleName, hashCode, isExplicitTransformation, isSupportedTransformation, onlySupports, setBeanName, setExplicitTransformations, setMimetypeService, setSupportedTransformations, setTransformerConfig, setUnsupportedTransformations

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

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

getName, isExplicitTransformation

Field Detail

NO_THUMBNAIL_PRESENT_IN_FILE

public static final String NO_THUMBNAIL_PRESENT_IN_FILE

See Also:

Constant Field Values

Constructor Detail

OOXMLThumbnailContentTransformer

public OOXMLThumbnailContentTransformer()

Method Detail

isTransformable

public boolean isTransformable(String sourceMimetype,
                               String targetMimetype,
                               TransformationOptions options)

Specified by:

isTransformable in interface ContentTransformer

Overrides:

isTransformable in class AbstractContentTransformerLimits

getComments

public String getComments(boolean available)

Description copied from class: ContentTransformerHelper

Overridden to supply a comment or String of commented out transformation properties that specify any (hard coded or implied) supported transformations. Used when providing a list of properties to an administrators who may be setting other transformation properties, via JMX. Consider overriding if {link AbstractContentTransformerLimits.isTransformableMimetype(String, String, TransformationOptions) or ContentTransformerWorker.isTransformable(String, String, TransformationOptions) have been overridden. See ContentTransformerHelper.getCommentsOnlySupports(List, List, boolean) which may be used to help construct a comment.

Specified by:

getComments in interface ContentTransformer

Overrides:

getComments in class ContentTransformerHelper

Parameters:

available - indicates if the transformer has been registered and is available to be selected. false indicates that the transformer is only available as a component of a complex transformer.

Returns:

one line per property. The simple transformer name is returned by default as a comment.

transformInternal

protected void transformInternal(org.alfresco.service.cmr.repository.ContentReader reader,
                                 org.alfresco.service.cmr.repository.ContentWriter writer,
                                 TransformationOptions options)
                          throws Exception

Description copied from class: AbstractContentTransformer2

Method to be implemented by subclasses wishing to make use of the common infrastructural code provided by this class.

Specified by:

transformInternal in class AbstractContentTransformer2

Parameters:

reader - the source of the content to transform

writer - the target to which to write the transformed content

options - a map of options to use when performing the transformation. The map will never be null.

Throws:

Exception - exceptions will be handled by this class - subclasses can throw anything