net.sourceforge.plantuml.command.ProtectedCommand 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 2009-2013, Arnaud Roques
 *
 * Project Info:  http://plantuml.sourceforge.net
 * 
 * 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.
 *
 * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
 * in the United States and other countries.]
 *
 * Original Author:  Arnaud Roques
 * 
 * Revision $Revision: 3828 $
 *
 */
package net.sourceforge.plantuml.command;

import java.io.ByteArrayOutputStream;
import java.io.PrintWriter;
import java.util.List;

import net.sourceforge.plantuml.Log;
import net.sourceforge.plantuml.core.Diagram;
import net.sourceforge.plantuml.version.Version;

public class ProtectedCommand implements Command {

	private final Command cmd;

	public ProtectedCommand(Command cmd) {
		this.cmd = cmd;
	}

	public CommandExecutionResult execute(S system, List lines) {
		try {
			final CommandExecutionResult result = cmd.execute(system, lines);
//			if (result.isOk()) {
//				// TRACECOMMAND
//				System.err.println("CMD = " + cmd.getClass());
//			}
			return result;
		} catch (Throwable t) {
			t.printStackTrace();
			final ByteArrayOutputStream baos = new ByteArrayOutputStream();
			final PrintWriter pw = new PrintWriter(baos);
			t.printStackTrace(pw);
			Log.error("Error " + t);
			String msg = "You should send a mail to [email protected] with this log (V" + Version.versionString()
					+ ")";
			Log.error(msg);
			msg += " " + new String(baos.toByteArray());
			return CommandExecutionResult.error(msg);
		}
	}

	public CommandControl isValid(List lines) {
		return cmd.isValid(lines);
	}

	public String[] getDescription() {
		return cmd.getDescription();
	}

}