001/*
002 * (C) Copyright 2015 Nuxeo SA (http://nuxeo.com/) and others.
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-2.1.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 *     Thomas Roger
016 */
017
018package org.nuxeo.ecm.platform.video.rendition;
019
020import java.util.Collections;
021import java.util.List;
022
023import org.nuxeo.ecm.core.api.Blob;
024import org.nuxeo.ecm.core.api.DocumentModel;
025import org.nuxeo.ecm.platform.rendition.extension.RenditionProvider;
026import org.nuxeo.ecm.platform.rendition.service.RenditionDefinition;
027import org.nuxeo.ecm.platform.video.TranscodedVideo;
028import org.nuxeo.ecm.platform.video.VideoDocument;
029
030/**
031 * Provides a rendition based on a transcoded video
032 * (referenced through the rendition definition name).
033 *
034 * @since 7.2
035 */
036public class VideoRenditionProvider implements RenditionProvider {
037
038    @Override
039    public boolean isAvailable(DocumentModel doc, RenditionDefinition definition) {
040        VideoDocument videoDocument = doc.getAdapter(VideoDocument.class);
041        if (videoDocument == null) {
042            return false;
043        }
044
045        TranscodedVideo transcodedVideo = videoDocument.getTranscodedVideo(definition.getName());
046        return transcodedVideo != null && transcodedVideo.getBlob() != null;
047    }
048
049    @Override
050    public List<Blob> render(DocumentModel doc, RenditionDefinition definition) {
051        VideoDocument videoDocument = doc.getAdapter(VideoDocument.class);
052        if (videoDocument == null) {
053            return Collections.emptyList();
054        }
055
056        TranscodedVideo transcodedVideo = videoDocument.getTranscodedVideo(definition.getName());
057        if (transcodedVideo != null) {
058            return Collections.singletonList(transcodedVideo.getBlob());
059        }
060        return Collections.emptyList();
061    }
062}