001/*
002 * (C) Copyright 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 *     Thomas Roger
018 */
019
020package org.nuxeo.ecm.platform.picture.recompute;
021
022import static org.nuxeo.ecm.platform.picture.api.ImagingDocumentConstants.PICTURE_FACET;
023
024import org.nuxeo.ecm.core.api.DocumentModel;
025import org.nuxeo.ecm.core.api.DocumentModelList;
026import org.nuxeo.ecm.core.api.blobholder.BlobHolder;
027import org.nuxeo.ecm.core.work.AbstractWork;
028
029public class ImagingRecomputeWork extends AbstractWork {
030
031    private static final long serialVersionUID = 1L;
032
033    protected static final int BATCH_SIZE = 10;
034
035    protected String nxqlQuery;
036
037    public ImagingRecomputeWork(String repositoryName, String nxqlQuery) {
038        this.repositoryName = repositoryName;
039        this.nxqlQuery = nxqlQuery;
040    }
041
042    @Override
043    public String getTitle() {
044        return "Picture Views Recomputation";
045    }
046
047    @Override
048    public void work() {
049        setProgress(Progress.PROGRESS_INDETERMINATE);
050
051        openSystemSession();
052        DocumentModelList docs = session.query(nxqlQuery);
053        long docsUpdated = 0;
054
055        setStatus("Generating views");
056        for (DocumentModel doc : docs) {
057            if (doc.hasFacet(PICTURE_FACET)) {
058                BlobHolder blobHolder = doc.getAdapter(BlobHolder.class);
059                if (blobHolder.getBlob() != null) {
060                    // make sure the blob property is dirty for the PictureChangedListener to not block the
061                    // PictureViewsGenerationListener
062                    blobHolder.setBlob(blobHolder.getBlob());
063                    session.saveDocument(doc);
064                    docsUpdated++;
065                    if (docsUpdated % BATCH_SIZE == 0) {
066                        commitOrRollbackTransaction();
067                        startTransaction();
068                    }
069                }
070            }
071        }
072        setStatus("Done");
073    }
074
075}