001/* 002 * (C) Copyright 2002-2007 Nuxeo SAS (http://nuxeo.com/) and contributors. 003 * 004 * All rights reserved. This program and the accompanying materials 005 * are made available under the terms of the GNU Lesser General Public License 006 * (LGPL) version 2.1 which accompanies this distribution, and is available at 007 * http://www.gnu.org/licenses/lgpl.html 008 * 009 * This library is distributed in the hope that it will be useful, 010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 012 * Lesser General Public License for more details. 013 * 014 * Contributors: 015 * Nuxeo - initial API and implementation 016 * 017 */ 018package org.nuxeo.ecm.platform.picture.convert; 019 020import static org.nuxeo.ecm.platform.picture.api.ImagingConvertConstants.CONVERSION_FORMAT; 021import static org.nuxeo.ecm.platform.picture.api.ImagingConvertConstants.OPTION_RESIZE_DEPTH; 022import static org.nuxeo.ecm.platform.picture.api.ImagingConvertConstants.OPTION_RESIZE_HEIGHT; 023import static org.nuxeo.ecm.platform.picture.api.ImagingConvertConstants.OPTION_RESIZE_WIDTH; 024 025import java.io.Serializable; 026import java.util.ArrayList; 027import java.util.List; 028import java.util.Map; 029 030import org.apache.commons.logging.Log; 031import org.apache.commons.logging.LogFactory; 032import org.nuxeo.ecm.core.api.Blob; 033import org.nuxeo.ecm.core.api.blobholder.BlobHolder; 034import org.nuxeo.ecm.core.convert.api.ConversionException; 035import org.nuxeo.ecm.core.convert.cache.SimpleCachableBlobHolder; 036import org.nuxeo.ecm.core.convert.extension.Converter; 037import org.nuxeo.ecm.core.convert.extension.ConverterDescriptor; 038import org.nuxeo.ecm.platform.picture.api.ImagingService; 039import org.nuxeo.runtime.api.Framework; 040 041/** 042 * @author <a href="mailto:ldoguin@nuxeo.com">Laurent Doguin</a> 043 */ 044public class ResizePictureConverter implements Converter { 045 046 private static final Log log = LogFactory.getLog(ResizePictureConverter.class); 047 048 @Override 049 public BlobHolder convert(BlobHolder blobHolder, Map<String, Serializable> parameters) throws ConversionException { 050 ImagingService service = Framework.getService(ImagingService.class); 051 List<Blob> sources = blobHolder.getBlobs(); 052 List<Blob> results = new ArrayList<Blob>(sources.size()); 053 Serializable h = parameters.get(OPTION_RESIZE_HEIGHT); 054 int height = ConverterUtils.getInteger(h); 055 Serializable w = parameters.get(OPTION_RESIZE_WIDTH); 056 int width = ConverterUtils.getInteger(w); 057 Serializable d = parameters.get(OPTION_RESIZE_DEPTH); 058 int depth = ConverterUtils.getInteger(d); 059 // use the registered conversion format 060 String format = (String) parameters.get(CONVERSION_FORMAT); 061 for (Blob source : sources) { 062 if (source != null) { 063 Blob result = service.resize(source, format, width, height, depth); 064 if (result != null) { 065 results.add(result); 066 } 067 } 068 } 069 return new SimpleCachableBlobHolder(results); 070 } 071 072 @Override 073 public void init(ConverterDescriptor descriptor) { 074 } 075 076}