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 java.io.Serializable; 021import java.util.ArrayList; 022import java.util.List; 023import java.util.Map; 024 025import org.apache.commons.logging.Log; 026import org.apache.commons.logging.LogFactory; 027import org.nuxeo.ecm.core.api.Blob; 028import org.nuxeo.ecm.core.api.blobholder.BlobHolder; 029import org.nuxeo.ecm.core.convert.api.ConversionException; 030import org.nuxeo.ecm.core.convert.cache.SimpleCachableBlobHolder; 031import org.nuxeo.ecm.core.convert.extension.Converter; 032import org.nuxeo.ecm.core.convert.extension.ConverterDescriptor; 033import org.nuxeo.ecm.platform.picture.api.ImagingConvertConstants; 034import org.nuxeo.ecm.platform.picture.api.ImagingService; 035import org.nuxeo.runtime.api.Framework; 036 037/** 038 * @author <a href="mailto:ldoguin@nuxeo.com">Laurent Doguin</a> 039 */ 040public class CropPictureConverter implements Converter { 041 042 private static final Log log = LogFactory.getLog(CropPictureConverter.class); 043 044 @Override 045 public BlobHolder convert(BlobHolder blobHolder, Map<String, Serializable> parameters) throws ConversionException { 046 ImagingService service = Framework.getService(ImagingService.class); 047 List<Blob> sources = blobHolder.getBlobs(); 048 List<Blob> results = new ArrayList<Blob>(sources.size()); 049 Serializable h = parameters.get(ImagingConvertConstants.OPTION_RESIZE_HEIGHT); 050 int height = ConverterUtils.getInteger(h); 051 Serializable w = parameters.get(ImagingConvertConstants.OPTION_RESIZE_WIDTH); 052 int width = ConverterUtils.getInteger(w); 053 Serializable xValue = parameters.get(ImagingConvertConstants.OPTION_CROP_X); 054 int x = ConverterUtils.getInteger(xValue); 055 Serializable yValue = parameters.get(ImagingConvertConstants.OPTION_CROP_Y); 056 int y = ConverterUtils.getInteger(yValue); 057 for (Blob source : sources) { 058 if (source != null) { 059 Blob result = service.crop(source, x, y, width, height); 060 if (result != null) { 061 results.add(result); 062 } 063 } 064 } 065 return new SimpleCachableBlobHolder(results); 066 } 067 068 @Override 069 public void init(ConverterDescriptor descriptor) { 070 } 071 072}