alfresco-community-repo/source/java/org/alfresco/repo/thumbnail/ThumbnailRenditionConvertor.java
2010-03-05 20:02:52 +00:00

165 lines
7.8 KiB
Java

/*
* Copyright (C) 2005-2010 Alfresco Software Limited.
*
* This file is part of Alfresco
*
* Alfresco is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Alfresco is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
*/
package org.alfresco.repo.thumbnail;
import java.io.Serializable;
import java.util.HashMap;
import java.util.Map;
import org.alfresco.repo.content.transform.magick.ImageResizeOptions;
import org.alfresco.repo.content.transform.magick.ImageTransformationOptions;
import org.alfresco.repo.content.transform.swf.SWFTransformationOptions;
import org.alfresco.repo.rendition.executer.AbstractRenderingEngine;
import org.alfresco.repo.rendition.executer.ImageRenderingEngine;
import org.alfresco.repo.rendition.executer.ReformatRenderingEngine;
import org.alfresco.service.cmr.rendition.RenditionDefinition;
import org.alfresco.service.cmr.rendition.RenditionService;
import org.alfresco.service.cmr.repository.TransformationOptions;
import org.alfresco.service.cmr.thumbnail.ThumbnailParentAssociationDetails;
/**
* A helper class to convert {@link TransformationOptions transformationOptions} (a thumbnail-specific
* class) to rendition-specific parameters and vice versa.
*
* @author Neil McErlean
*/
public class ThumbnailRenditionConvertor
{
public Map<String, Serializable> convert(TransformationOptions transformationOptions, ThumbnailParentAssociationDetails assocDetails)
{
Map<String, Serializable> parameters = new HashMap<String, Serializable>();
// parameters common to all transformations
putParameterIfNotNull(AbstractRenderingEngine.PARAM_SOURCE_CONTENT_PROPERTY, transformationOptions.getSourceContentProperty(), parameters);
putParameterIfNotNull(AbstractRenderingEngine.PARAM_TARGET_CONTENT_PROPERTY, transformationOptions.getTargetContentProperty(), parameters);
putParameterIfNotNull(RenditionService.PARAM_DESTINATION_NODE, transformationOptions.getTargetNodeRef(), parameters);
// putParameterIfNotNull(ImageRenderingEngine.PARAM_ASSOC_NAME, assocDetails.getAssociationName(), parameters);
// putParameterIfNotNull(ImageRenderingEngine.PARAM_ASSOC_TYPE, assocDetails.getAssociationType(), parameters);
if (transformationOptions instanceof SWFTransformationOptions)
{
SWFTransformationOptions swfTransformationOptions = (SWFTransformationOptions)transformationOptions;
putParameterIfNotNull(ReformatRenderingEngine.PARAM_FLASH_VERSION, swfTransformationOptions.getFlashVersion(), parameters);
}
else if (transformationOptions instanceof ImageTransformationOptions)
{
ImageTransformationOptions imTransformationOptions = (ImageTransformationOptions)transformationOptions;
putParameterIfNotNull(ImageRenderingEngine.PARAM_COMMAND_OPTIONS, imTransformationOptions.getCommandOptions(), parameters);
ImageResizeOptions imgResizeOptions = imTransformationOptions.getResizeOptions();
if (imgResizeOptions != null)
{
int width = imgResizeOptions.getWidth();
parameters.put(ImageRenderingEngine.PARAM_RESIZE_WIDTH, width);
int height = imgResizeOptions.getHeight();
parameters.put(ImageRenderingEngine.PARAM_RESIZE_HEIGHT, height);
boolean maintainAspectRatio = imgResizeOptions.isMaintainAspectRatio();
parameters.put(ImageRenderingEngine.PARAM_MAINTAIN_ASPECT_RATIO, maintainAspectRatio);
boolean percentResize = imgResizeOptions.isPercentResize();
parameters.put(ImageRenderingEngine.PARAM_IS_PERCENT_RESIZE, percentResize);
boolean resizeToThumbnail = imgResizeOptions.isResizeToThumbnail();
parameters.put(ImageRenderingEngine.PARAM_RESIZE_TO_THUMBNAIL, resizeToThumbnail);
}
}
return parameters;
}
private void putParameterIfNotNull(String paramName, Serializable paramValue, Map<String, Serializable> params)
{
if (paramValue != null)
{
params.put(paramName, paramValue);
}
}
public ThumbnailDefinition convert(RenditionDefinition renditionDefinition)
{
ThumbnailDefinition thDefn = new ThumbnailDefinition();
Map<String, Serializable> params = renditionDefinition.getParameterValues();
//parameters common to all the built-in thumbnail definitions
Serializable mimeTypeParam = params.get(AbstractRenderingEngine.PARAM_MIME_TYPE);
thDefn.setMimetype((String) mimeTypeParam);
thDefn.setName(renditionDefinition.getRenditionName().getLocalName());
Serializable placeHolderResourcePathParam = params.get(AbstractRenderingEngine.PARAM_PLACEHOLDER_RESOURCE_PATH);
if (placeHolderResourcePathParam != null)
{
thDefn.setPlaceHolderResourcePath((String)placeHolderResourcePathParam);
}
//TODO src/target contentProp & nodeRef
TransformationOptions transformationOptions = null;
Serializable flashVersion = renditionDefinition.getParameterValue(ReformatRenderingEngine.PARAM_FLASH_VERSION);
if (flashVersion != null)
{
// Thumbnails based on SWFTransformationOptions
transformationOptions = new SWFTransformationOptions();
SWFTransformationOptions swfTranOpts = (SWFTransformationOptions)transformationOptions;
swfTranOpts.setFlashVersion((String)flashVersion);
}
else
{
// Thumbnails based on ImageTransformationOptions
transformationOptions = new ImageTransformationOptions();
ImageTransformationOptions imgTrOpts = (ImageTransformationOptions)transformationOptions;
ImageResizeOptions resizeOptions = new ImageResizeOptions();
Serializable xsize = renditionDefinition.getParameterValue(ImageRenderingEngine.PARAM_RESIZE_WIDTH);
if (xsize != null)
{
// Saved actions with int parameters seem to be coming back as Longs. TODO Investigate
resizeOptions.setWidth(((Long) xsize).intValue());
}
Serializable ysize = renditionDefinition.getParameterValue(ImageRenderingEngine.PARAM_RESIZE_HEIGHT);
if (ysize != null)
{
resizeOptions.setHeight(((Long) ysize).intValue());
}
Serializable maintainAspectRatio = renditionDefinition.getParameterValue(ImageRenderingEngine.PARAM_MAINTAIN_ASPECT_RATIO);
if (maintainAspectRatio != null)
{
resizeOptions.setMaintainAspectRatio((Boolean) maintainAspectRatio);
}
Serializable resizeToThumbnail = renditionDefinition.getParameterValue(ImageRenderingEngine.PARAM_RESIZE_TO_THUMBNAIL);
if (resizeToThumbnail != null)
{
resizeOptions.setResizeToThumbnail((Boolean) resizeToThumbnail);
}
imgTrOpts.setResizeOptions(resizeOptions);
}
thDefn.setTransformationOptions(transformationOptions);
return thDefn;
}
}