001/*
002 * Copyright 2006 - 2013
003 *      Stefan Balev    <stefan.balev@graphstream-project.org>
004 *      Julien Baudry   <julien.baudry@graphstream-project.org>
005 *      Antoine Dutot   <antoine.dutot@graphstream-project.org>
006 *      Yoann Pigné         <yoann.pigne@graphstream-project.org>
007 *      Guilhelm Savin  <guilhelm.savin@graphstream-project.org>
008 *  
009 * GraphStream is a library whose purpose is to handle static or dynamic
010 * graph, create them from scratch, file or any source and display them.
011 * 
012 * This program is free software distributed under the terms of two licenses, the
013 * CeCILL-C license that fits European law, and the GNU Lesser General Public
014 * License. You can  use, modify and/ or redistribute the software under the terms
015 * of the CeCILL-C license as circulated by CEA, CNRS and INRIA at the following
016 * URL <http://www.cecill.info> or under the terms of the GNU LGPL as published by
017 * the Free Software Foundation, either version 3 of the License, or (at your
018 * option) any later version.
019 * 
020 * This program is distributed in the hope that it will be useful, but WITHOUT ANY
021 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
022 * PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more details.
023 * 
024 * You should have received a copy of the GNU Lesser General Public License
025 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
026 * 
027 * The fact that you are presently reading this means that you have had
028 * knowledge of the CeCILL-C and LGPL licenses and that you accept their terms.
029 */
030package org.graphstream.stream.file.gexf;
031
032import java.text.DateFormat;
033import java.util.Calendar;
034import java.util.Date;
035
036import javax.xml.stream.XMLStreamException;
037
038public class GEXFMeta implements GEXFElement {
039        String creator;
040        String keywords;
041        String description;
042
043        public GEXFMeta() {
044                creator = "GraphStream using " + getClass().getName();
045                keywords = "";
046                description = "";
047        }
048
049        public GEXFMeta(String creator, String keywords, String description) {
050                this.creator = creator;
051                this.keywords = keywords;
052                this.description = description;
053        }
054
055        /*
056         * (non-Javadoc)
057         * 
058         * @see
059         * org.graphstream.stream.file.gexf.GEXFElement#export(org.graphstream.stream
060         * .file.gexf.SmartXMLWriter)
061         */
062        public void export(SmartXMLWriter stream) throws XMLStreamException {
063                Calendar cal = Calendar.getInstance();
064                Date date = cal.getTime();
065                DateFormat df = DateFormat.getDateTimeInstance(DateFormat.SHORT,
066                                DateFormat.SHORT);
067
068                stream.startElement("meta");
069                stream.stream.writeAttribute("lastmodifieddate", df.format(date));
070
071                stream.leafWithText("creator", creator);
072                stream.leafWithText("keywords", keywords);
073                stream.leafWithText("description", description);
074
075                stream.endElement(); // META
076        }
077}