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 org.nuxeo.ecm.core.api.DocumentModel;
023import org.nuxeo.ecm.core.api.DocumentModelList;
024import org.nuxeo.ecm.core.api.blobholder.BlobHolder;
025import org.nuxeo.ecm.core.work.AbstractWork;
026
027import static org.nuxeo.ecm.platform.picture.api.ImagingDocumentConstants.PICTURE_FACET;
028
029public class ImagingRecomputeWork extends AbstractWork {
030
031    protected final static int BATCH_SIZE = 10;
032
033    protected String nxqlQuery;
034
035    public ImagingRecomputeWork(String repositoryName, String nxqlQuery) {
036        this.repositoryName = repositoryName;
037        this.nxqlQuery = nxqlQuery;
038    }
039
040    @Override
041    public String getTitle() {
042        return "Picture Views Recomputation";
043    }
044
045    @Override
046    public void work() {
047        setProgress(Progress.PROGRESS_INDETERMINATE);
048
049        openSystemSession();
050        DocumentModelList docs = session.query(nxqlQuery);
051        long docsUpdated = 0;
052
053        setStatus("Generating views");
054        for (DocumentModel doc : docs) {
055            if (doc.hasFacet(PICTURE_FACET)) {
056                BlobHolder blobHolder = doc.getAdapter(BlobHolder.class);
057                if (blobHolder.getBlob() != null) {
058                    blobHolder.setBlob(blobHolder.getBlob());
059                    session.saveDocument(doc);
060                    docsUpdated++;
061                    if (docsUpdated % BATCH_SIZE == 0) {
062                        commitOrRollbackTransaction();
063                        startTransaction();
064                    }
065                }
066            }
067        }
068        setStatus("Done");
069    }
070
071}