001/*
002 * (C) Copyright 2006-2008 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 * $Id$
018 *
019 */
020package org.nuxeo.ecm.platform.pictures.tiles.api.adapter;
021
022import org.apache.commons.logging.Log;
023import org.apache.commons.logging.LogFactory;
024import org.nuxeo.ecm.core.api.Blob;
025import org.nuxeo.ecm.core.api.DocumentModel;
026import org.nuxeo.ecm.core.api.PropertyException;
027import org.nuxeo.ecm.core.api.adapter.DocumentAdapterFactory;
028import org.nuxeo.ecm.platform.picture.api.adapters.PictureResourceAdapter;
029import org.nuxeo.ecm.platform.pictures.tiles.api.PictureTilingService;
030import org.nuxeo.runtime.api.Framework;
031
032/**
033 * Factory method for the DocumentModelAdapter for PictureTiles Contains the logic to choose the correct implementation
034 * according to DocumentModel.
035 *
036 * @author tiry
037 */
038public class PictureTilesAdapterFactory implements DocumentAdapterFactory {
039
040    private static final Log log = LogFactory.getLog(PictureTilesAdapterFactory.class);
041
042    protected static final String ORIGINAL_JPEG_VIEW_NAME = "OriginalJpeg";
043
044    /**
045     * @deprecated since 7.2. The Original view does not exist anymore. See NXP-16070.
046     */
047    @Deprecated
048    protected static final String ORIGINAL_VIEW_NAME = "Original";
049
050    public Object getAdapter(DocumentModel doc, Class itf) {
051        PictureTilingService tilingService = Framework.getService(PictureTilingService.class);
052        String blobProperty = tilingService.getBlobProperty(doc.getType());
053        PictureTilesAdapter ptAdapter = getPictureTilesAdapterFor(doc, blobProperty);
054        if (ptAdapter != null) {
055            return ptAdapter;
056        }
057        // else fall back on default
058        if (doc.hasSchema("file")) {
059            Blob blob = (Blob) doc.getProperty("file", "content");
060            if (blob == null) {
061                return null;
062            }
063            PictureTilesAdapter adapter = new PictureTilesAdapterImpl(doc, "file:content");
064            adapter.setFileName((String) doc.getProperty("file", "filename"));
065            return adapter;
066        } else {
067            return new PictureTilesAdapterImpl(doc);
068        }
069    }
070
071    private PictureTilesAdapter getPictureTilesAdapterFor(DocumentModel doc, String blobProperty)
072            {
073        if (blobProperty != null) {
074            try {
075                return getPictureTilesAdapter(doc, blobProperty);
076            } catch (PropertyException | IndexOutOfBoundsException e) {
077                return getPictureTilesAdapterForPicture(doc);
078            }
079        }
080        return getPictureTilesAdapterForPicture(doc);
081    }
082
083    private PictureTilesAdapter getPictureTilesAdapterForPicture(DocumentModel doc) {
084        if (doc.hasSchema("picture")) {
085            PictureResourceAdapter adapter = doc.getAdapter(PictureResourceAdapter.class);
086            // try OriginalJpeg view xpath
087            String blobProperty = adapter.getViewXPath(ORIGINAL_JPEG_VIEW_NAME) + "content";
088            return getPictureTilesAdapter(doc, blobProperty);
089        }
090        return null;
091    }
092
093    private PictureTilesAdapter getPictureTilesAdapter(DocumentModel doc, String blobProperty) {
094        Blob blob = (Blob) doc.getPropertyValue(blobProperty);
095        if (blob != null) {
096            PictureTilesAdapter adapter = new PictureTilesAdapterImpl(doc, blobProperty);
097            adapter.setFileName(blob.getFilename());
098            return adapter;
099        }
100        return null;
101    }
102
103}