net.sourceforge.plantuml.sequencediagram.command.CommandAutonumber Maven / Gradle / Ivy

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

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/* ========================================================================
 * 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.sequencediagram.command;

import java.text.DecimalFormat;
import java.util.List;

import net.sourceforge.plantuml.command.CommandExecutionResult;
import net.sourceforge.plantuml.command.SingleLineCommand;
import net.sourceforge.plantuml.sequencediagram.SequenceDiagram;

public class CommandAutonumber extends SingleLineCommand {

	public CommandAutonumber() {
		super("(?i)^autonumber[%s]*(\\d+)?(?:[%s]+(\\d+))?(?:[%s]+[%g]([^%g]+)[%g])?[%s]*$");
	}

	@Override
	protected CommandExecutionResult executeArg(SequenceDiagram sequenceDiagram, List arg) {
		int start = 1;
		if (arg.get(0) != null) {
			start = Integer.parseInt(arg.get(0));
		}
		int inc = 1;
		if (arg.get(1) != null) {
			inc = Integer.parseInt(arg.get(1));
		}

		final String df = arg.get(2) == null ? "0" : arg.get(2);
		final DecimalFormat decimalFormat;
		try {
			decimalFormat = new DecimalFormat(df);
		} catch (IllegalArgumentException e) {
			return CommandExecutionResult.error("Error in pattern : " + df);
		}

		sequenceDiagram.autonumberGo(start, inc, decimalFormat);
		return CommandExecutionResult.ok();
	}
}