001/*
002 * (C) Copyright 2006-2013 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     Vladimir Pasquier <vpasquier@nuxeo.com>
018 *
019 */
020package org.nuxeo.ecm.platform.picture.thumbnail;
021
022import java.io.File;
023import java.io.IOException;
024
025import org.nuxeo.common.utils.FileUtils;
026import org.nuxeo.ecm.core.api.Blob;
027import org.nuxeo.ecm.core.api.Blobs;
028import org.nuxeo.ecm.core.api.CoreSession;
029import org.nuxeo.ecm.core.api.DocumentModel;
030import org.nuxeo.ecm.core.api.NuxeoException;
031import org.nuxeo.ecm.core.api.thumbnail.ThumbnailFactory;
032import org.nuxeo.ecm.platform.picture.api.PictureView;
033import org.nuxeo.ecm.platform.picture.api.adapters.MultiviewPicture;
034import org.nuxeo.ecm.platform.types.adapter.TypeInfo;
035
036/**
037 * Picture thumbnail factory
038 *
039 * @since 5.7
040 */
041public class ThumbnailPictureFactory implements ThumbnailFactory {
042
043    @Override
044    public Blob getThumbnail(DocumentModel doc, CoreSession session) {
045        if (!doc.hasFacet("Picture")) {
046            throw new NuxeoException("Document is not a picture");
047        }
048        // Choose the nuxeo default thumbnail of the picture views if exists
049        MultiviewPicture mViewPicture = doc.getAdapter(MultiviewPicture.class);
050        PictureView thumbnailView = mViewPicture.getView("Small");
051        if (thumbnailView == null || thumbnailView.getBlob() == null) {
052            // try thumbnail view
053            thumbnailView = mViewPicture.getView("Thumbnail");
054            if (thumbnailView == null || thumbnailView.getBlob() == null) {
055                TypeInfo docType = doc.getAdapter(TypeInfo.class);
056                try {
057                    return Blobs.createBlob(FileUtils.getResourceFileFromContext("nuxeo.war" + File.separator
058                            + docType.getBigIcon()));
059                } catch (IOException e) {
060                    throw new NuxeoException(e);
061                }
062            }
063        }
064        return thumbnailView.getBlob();
065    }
066
067    @Override
068    public Blob computeThumbnail(DocumentModel doc, CoreSession session) {
069        return null;
070    }
071}