001/*
002 * (C) Copyright 2015 Nuxeo SA (http://nuxeo.com/) and contributors.
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 *     Antoine Taillefer <ataillefer@nuxeo.com>
016 */
017package org.nuxeo.ecm.automation.server.jaxrs.batch;
018
019import java.util.Collections;
020import java.util.List;
021
022import org.apache.commons.collections.CollectionUtils;
023import org.nuxeo.ecm.core.api.Blob;
024import org.nuxeo.ecm.core.transientstore.AbstractStorageEntry;
025import org.nuxeo.ecm.core.transientstore.api.TransientStore;
026
027/**
028 * Represents a chunk from a batch file backed by the {@link TransientStore}.
029 *
030 * @since 7.4
031 * @see BatchFileEntry
032 * @see Batch
033 */
034public class BatchChunkEntry extends AbstractStorageEntry {
035
036    private static final long serialVersionUID = 1L;
037
038    public BatchChunkEntry(String id, Blob blob) {
039        super(id);
040        setBlobs(Collections.singletonList(blob));
041    }
042
043    public Blob getBlob() {
044        List<Blob> blobs = getBlobs();
045        if (CollectionUtils.isEmpty(blobs)) {
046            return null;
047        }
048        return blobs.get(0);
049    }
050
051    @Override
052    public void beforeRemove() {
053        // Nothing to do here
054    }
055}