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}