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.util.LinkedList; 033 034import javax.xml.stream.XMLStreamException; 035 036public class GEXFSpells implements GEXFElement { 037 GEXF root; 038 LinkedList<GEXFSpell> spells; 039 040 public GEXFSpells(GEXF root) { 041 this.root = root; 042 this.spells = new LinkedList<GEXFSpell>(); 043 } 044 045 public void start() { 046 double date = root.step; 047 048 if (spells.size() == 0 || spells.getLast().closed) { 049 GEXFSpell spell = new GEXFSpell(root); 050 spell.start = date; 051 052 spells.add(spell); 053 } 054 } 055 056 public void end() { 057 double date = root.step; 058 059 if (spells.size() > 0 && !spells.getLast().closed) { 060 GEXFSpell spell = spells.getLast(); 061 062 spell.end = date; 063 spell.closed = true; 064 } 065 } 066 067 /* 068 * (non-Javadoc) 069 * 070 * @see 071 * org.graphstream.stream.file.gexf.GEXFElement#export(org.graphstream.stream 072 * .file.gexf.SmartXMLWriter) 073 */ 074 public void export(SmartXMLWriter stream) throws XMLStreamException { 075 if (spells.size() == 0) 076 return; 077 078 stream.startElement("spells"); 079 080 for (int i = 0; i < spells.size(); i++) 081 spells.get(i).export(stream); 082 083 stream.endElement(); // SPELLS 084 } 085}