params = thumbnailRegistry.getThumbnailRenditionConvertor().convert(transformationOptions, assocDetails);
// Add the other parameters given in this method signature.
params.put(AbstractRenderingEngine.PARAM_SOURCE_CONTENT_PROPERTY, contentProperty);
params.put(AbstractRenderingEngine.PARAM_MIME_TYPE, mimetype);
// Set the parameters on the rendition definition.
definition.addParameterValues(params);
return definition;
}
private NodeRef createThumbnailNode(final NodeRef node, final QName contentProperty,
final String mimetype, final TransformationOptions transformationOptions, final String thumbnailName,
final ThumbnailParentAssociationDetails assocDetails)
{
// Get the name of the thumbnail and add to properties map
QName thumbnailQName = getThumbnailQName(thumbnailName);
RenditionDefinition definition = createRenditionDefinition(contentProperty, mimetype,
transformationOptions, thumbnailQName, assocDetails);
try
{
ChildAssociationRef thumbnailAssoc = renditionService.render(node, definition);
NodeRef thumbnail = getThumbnailNode(thumbnailAssoc);
setThumbnailNameProperty(thumbnail, thumbnailName);
return thumbnail;
} catch (RenditionServiceException rsx)
{
throw new ThumbnailException(rsx.getMessage(), rsx);
}
}
/**
* Sets the thumbnail name if the rendition is of type cm:thumbnail.
* @param thumbnail NodeRef
* @param thumbnailName String
*/
private void setThumbnailNameProperty(NodeRef thumbnail, String thumbnailName)
{
if (thumbnailName != null && thumbnailName.length() > 0)
{
if (ContentModel.TYPE_THUMBNAIL.equals(nodeService.getType(thumbnail)))
{
nodeService.setProperty(thumbnail, ContentModel.PROP_THUMBNAIL_NAME, thumbnailName);
}
}
}
/**
* Updates the parent of the supplied {@link NodeRef} to ensure that it has the "cm:thumbnailModification" aspect
* and sets the last modification data for it.
* @param nodeRef A {@link NodeRef} representing a thumbnail to provide last modification data for.
*/
@SuppressWarnings("unchecked")
public void addThumbnailModificationData(NodeRef nodeRef, String thumbnailName)
{
if (nodeService.exists(nodeRef))
{
if (thumbnailName != null && !nodeRef.toString().endsWith(thumbnailName))
{
Date modified = (Date)nodeService.getProperty(nodeRef, ContentModel.PROP_MODIFIED);
if (modified != null)
{
// Get the last modified value as a timestamp...
Long timestamp = modified.getTime();
// Create the value we want to set...
String lastModifiedValue = thumbnailName + ":" + timestamp;
// Get the parent node (there should be only one) and apply the aspect and
// set the property to indicate which thumbnail the checksum refers to...
for (ChildAssociationRef parent: nodeService.getParentAssocs(nodeRef))
{
List thumbnailMods = null;
NodeRef parentNode = parent.getParentRef();
if (nodeService.hasAspect(parentNode, ContentModel.ASPECT_THUMBNAIL_MODIFICATION))
{
// The node already has the aspect, check to see if the current thumbnail modification exists...
thumbnailMods = (List) nodeService.getProperty(parentNode, ContentModel.PROP_LAST_THUMBNAIL_MODIFICATION_DATA);
// If we have previously set last modified thumbnail data then it will exist as part of the multi-value
// property. The value will consist of the "cm:thumbnailName" value delimited with a ":" and then the
// timestamp. We need to find the appropriate entry in the multivalue property and then update it
String target = null;
for (String currThumbnailMod: thumbnailMods)
{
if (currThumbnailMod.startsWith(thumbnailName))
{
target = currThumbnailMod;
}
}
// Remove the previous value
if (target != null)
{
thumbnailMods.remove(target);
}
// Add the timestamp...
thumbnailMods.add(lastModifiedValue);
// Set the property...
ruleService.disableRuleType(RuleType.UPDATE);
try
{
nodeService.setProperty(parentNode, ContentModel.PROP_LAST_THUMBNAIL_MODIFICATION_DATA, (Serializable) thumbnailMods);
}
finally
{
ruleService.enableRuleType(RuleType.UPDATE);
}
}
else
{
// If the aspect has not previously been added then we'll need to set it now...
thumbnailMods = new ArrayList();
thumbnailMods.add(lastModifiedValue);
// Add the aspect with the new property...
Map properties = new HashMap();
properties.put(ContentModel.PROP_LAST_THUMBNAIL_MODIFICATION_DATA, (Serializable) thumbnailMods);
ruleService.disableRuleType(RuleType.UPDATE);
try
{
nodeService.addAspect(parentNode, ContentModel.ASPECT_THUMBNAIL_MODIFICATION, properties);
}
finally
{
ruleService.enableRuleType(RuleType.UPDATE);
}
}
}
}
}
}
}
}