001/*
002 * #%L
003 * Netarchivesuite - common
004 * %%
005 * Copyright (C) 2005 - 2014 The Royal Danish Library, the Danish State and University Library,
006 *             the National Library of France and the Austrian National Library.
007 * %%
008 * This program is free software: you can redistribute it and/or modify
009 * it under the terms of the GNU Lesser General Public License as
010 * published by the Free Software Foundation, either version 2.1 of the
011 * License, or (at your option) any later version.
012 * 
013 * This program is distributed in the hope that it will be useful,
014 * but WITHOUT ANY WARRANTY; without even the implied warranty of
015 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
016 * GNU General Lesser Public License for more details.
017 * 
018 * You should have received a copy of the GNU General Lesser Public
019 * License along with this program.  If not, see
020 * <http://www.gnu.org/licenses/lgpl-2.1.html>.
021 * #L%
022 */
023package dk.netarkivet.common.utils.batch;
024
025import java.io.File;
026import java.io.OutputStream;
027import java.util.Date;
028
029/**
030 * Job which returns the names of all files in the archive modified after a specific date.
031 */
032@SuppressWarnings({"serial"})
033public class DatedFileListJob extends FileListJob {
034
035    private Date since;
036
037    /**
038     * Constructor for this class.
039     *
040     * @param since The date after which we require files to be listed.
041     */
042    public DatedFileListJob(Date since) {
043        super();
044        this.since = since;
045    }
046
047    /**
048     * Writes the name of the arcfile to the OutputStream if its lastModified date is more recent than "since".
049     *
050     * @param file an arcfile
051     * @param os the OutputStream to which data is to be written
052     * @return false If listing of this arcfile fails because of an error; true if the name is listed or if it is not
053     * listed because the file is too old.
054     */
055    @Override
056    public boolean processFile(File file, OutputStream os) {
057        if (file.lastModified() > since.getTime()) {
058            return super.processFile(file, os);
059        } else {
060            return true;
061        }
062    }
063
064}