net.sourceforge.plantuml.directdot.PSystemDotFactory Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of plantuml Show documentation

PlantUML is a component that allows to quickly write : * sequence diagram, * use case diagram, * class diagram, * activity diagram, * component diagram, * state diagram * object diagram

The newest version!

/* ========================================================================
 * PlantUML : a free UML diagram generator
 * ========================================================================
 *
 * (C) Copyright 2009-2017, Arnaud Roques
 *
 * Project Info:  http://plantuml.com
 * 
 * If you like this project or if you find it useful, you can support us at:
 * 
 * http://plantuml.com/patreon (only 1$ per month!)
 * http://plantuml.com/paypal
 * 
 * This file is part of PlantUML.
 *
 * PlantUML is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * PlantUML distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
 * License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
 * USA.
 *
 *
 * Original Author:  Arnaud Roques
 *
 */
package net.sourceforge.plantuml.directdot;

import net.sourceforge.plantuml.command.PSystemBasicFactory;
import net.sourceforge.plantuml.core.DiagramType;

public class PSystemDotFactory extends PSystemBasicFactory {

	private StringBuilder data;

	public PSystemDotFactory(DiagramType diagramType) {
		super(diagramType);
	}

	@Override
	public PSystemDot init(String startLine) {
		data = null;
		return null;
	}

	@Override
	public PSystemDot executeLine(PSystemDot system, String line) {
		if (system == null && line.matches("(strict\\s+)?(di)?graph\\s+\\w+\\s+\\{")) {
			data = new StringBuilder(line);
			data.append("\n");
			return new PSystemDot(data.toString());
		}
		if (data == null || system == null) {
			return null;
		}
		data.append(line);
		data.append("\n");
		return new PSystemDot(data.toString());
	}
}