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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 2009-2024, Arnaud Roques
 *
 * Project Info:  https://plantuml.com
 * 
 * If you like this project or if you find it useful, you can support us at:
 * 
 * https://plantuml.com/patreon (only 1$ per month!)
 * https://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:  Guillaume Grossetie
 *
 * 
 */
package net.sourceforge.plantuml.log;

import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.logging.Formatter;
import java.util.logging.LogRecord;

public class SimpleFormatter extends Formatter {
    // ::remove folder when __HAXE__

	@Override
	public synchronized String format(LogRecord record) {
		final String throwable;
		if (record.getThrown() == null) {
			throwable = "";
		} else {
			final StringWriter sw = new StringWriter();
			final PrintWriter pw = new PrintWriter(sw);
			pw.println();
			record.getThrown().printStackTrace(pw);
			pw.close();
			throwable = sw.toString().trim();
		}

		final String message = record.getMessage();
		final StringBuilder sb = new StringBuilder();

		if (message.trim().length() > 0) {
			sb.append(message);
			sb.append(System.lineSeparator());
		}

		if (throwable.length() > 0) {
			sb.append(throwable);
			sb.append(System.lineSeparator());
		}

		return sb.toString();
	}
}