001/*
002 * (C) Copyright 2018 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 *     Benoît Delbosc <bdelbosc@nuxeo.com>
018 *     Antoine Taillefer <ataillefer@nuxeo.com>
019 */
020package org.nuxeo.ecm.platform.video.service;
021
022import static org.nuxeo.ecm.core.api.CoreSession.ALLOW_VERSION_WRITE;
023import static org.nuxeo.ecm.platform.video.VideoConstants.HAS_STORYBOARD_FACET;
024import static org.nuxeo.ecm.platform.video.VideoConstants.HAS_VIDEO_PREVIEW_FACET;
025
026import org.apache.commons.logging.Log;
027import org.apache.commons.logging.LogFactory;
028import org.nuxeo.ecm.core.api.Blob;
029import org.nuxeo.ecm.core.api.DocumentModel;
030import org.nuxeo.ecm.core.api.IdRef;
031import org.nuxeo.ecm.core.api.blobholder.BlobHolder;
032import org.nuxeo.ecm.core.work.AbstractWork;
033import org.nuxeo.ecm.core.work.api.WorkManager;
034import org.nuxeo.ecm.platform.video.VideoDocument;
035import org.nuxeo.ecm.platform.video.VideoHelper;
036import org.nuxeo.runtime.api.Framework;
037
038/**
039 * Work to process the video info of a Video document and schedule two works to process the storyboard and conversions,
040 * see {@link VideoStoryboardWork} and {@link VideoConversionWork}.
041 *
042 * @since 10.1
043 */
044public class VideoInfoWork extends AbstractWork {
045
046    private static final long serialVersionUID = 1L;
047
048    private static final Log log = LogFactory.getLog(VideoInfoWork.class);
049
050    public static final String CATEGORY_VIDEO_INFO = "videoInfo";
051
052    protected static String computeIdPrefix(String repositoryName, String docId) {
053        return repositoryName + ':' + docId + ":videoinfo:";
054    }
055
056    public VideoInfoWork(String repositoryName, String docId) {
057        super(computeIdPrefix(repositoryName, docId));
058        setDocument(repositoryName, docId);
059    }
060
061    @Override
062    public boolean isIdempotent() {
063        return false;
064    }
065
066    @Override
067    public String getCategory() {
068        return CATEGORY_VIDEO_INFO;
069    }
070
071    @Override
072    public String getTitle() {
073        return "Video Info: " + getId();
074    }
075
076    @Override
077    public void work() {
078        setStatus("Updating video info");
079        setProgress(Progress.PROGRESS_INDETERMINATE);
080        openSystemSession();
081
082        // get video blob and update video info
083        DocumentModel doc = session.getDocument(new IdRef(docId));
084        updateVideoInfo(doc);
085
086        if (doc.hasFacet(HAS_VIDEO_PREVIEW_FACET) && doc.hasFacet(HAS_STORYBOARD_FACET)) {
087            // schedule storyboard work
088            WorkManager workManager = Framework.getService(WorkManager.class);
089            VideoStoryboardWork work = new VideoStoryboardWork(doc.getRepositoryName(), doc.getId());
090            log.debug(String.format("Scheduling work: storyboard of Video document %s.", doc));
091            workManager.schedule(work, true);
092        }
093
094        // schedule conversion work
095        VideoService videoService = Framework.getService(VideoService.class);
096        log.debug(String.format("Launching automatic conversions of Video document %s.", doc));
097        videoService.launchAutomaticConversions(doc, true);
098
099        setStatus("Done");
100    }
101
102    protected void updateVideoInfo(DocumentModel doc) {
103        VideoDocument videoDocument = doc.getAdapter(VideoDocument.class);
104        if (videoDocument.getVideo().getWidth() != 0 && videoDocument.getVideo().getHeight() != 0) {
105            // assume the video info is already computed
106            return;
107        }
108
109        BlobHolder blobHolder = doc.getAdapter(BlobHolder.class);
110        Blob video = blobHolder.getBlob();
111        log.debug(String.format("Updating video info of document %s.", doc));
112        VideoHelper.updateVideoInfo(doc, video);
113        log.debug(String.format("End updating video info of document %s.", doc));
114
115        // save document
116        if (doc.isVersion()) {
117            doc.putContextData(ALLOW_VERSION_WRITE, Boolean.TRUE);
118        }
119        session.saveDocument(doc);
120    }
121
122}