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PlantUML is a component that allows to quickly write diagrams from text.
There is a newer version: 1.2024.8
// THIS FILE HAS BEEN GENERATED BY A PREPROCESSOR.
/* +=======================================================================
 * |
 * |      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/liberapay (only 1€ per month!)
 * https://plantuml.com/paypal
 *
 *
 * PlantUML is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser 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 Lesser General Public
 * License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library.  If not, see .
 *
 * PlantUML can occasionally display sponsored or advertising messages. Those
 * messages are usually generated on welcome or error images and never on
 * functional diagrams.
 * See https://plantuml.com/professional if you want to remove them
 *
 * Images (whatever their format : PNG, SVG, EPS...) generated by running PlantUML
 * are owned by the author of their corresponding sources code (that is, their
 * textual description in PlantUML language). Those images are not covered by
 * this LGPL license.
 *
 * The generated images can then be used without any reference to the LGPL license.
 * It is not even necessary to stipulate that they have been generated with PlantUML,
 * although this will be appreciated by the PlantUML team.
 *
 * There is an exception : if the textual description in PlantUML language is also covered
 * by any license, then the generated images are logically covered
 * by the very same license.
 *
 * This is the IGY distribution (Install GraphViz by Yourself).
 * You have to install GraphViz and to setup the GRAPHVIZ_DOT environment variable
 * (see https://plantuml.com/graphviz-dot )
 *
 * Icons provided by OpenIconic :  https://useiconic.com/open
 * Archimate sprites provided by Archi :  http://www.archimatetool.com
 * Stdlib AWS provided by https://github.com/milo-minderbinder/AWS-PlantUML
 * Stdlib Icons provided https://github.com/tupadr3/plantuml-icon-font-sprites
 * ASCIIMathML (c) Peter Jipsen http://www.chapman.edu/~jipsen
 * ASCIIMathML (c) David Lippman http://www.pierce.ctc.edu/dlippman
 * CafeUndZopfli ported by Eugene Klyuchnikov https://github.com/eustas/CafeUndZopfli
 * Brotli (c) by the Brotli Authors https://github.com/google/brotli
 * Themes (c) by Brett Schwarz https://github.com/bschwarz/puml-themes
 * Twemoji (c) by Twitter at https://twemoji.twitter.com/
 *
 */
package net.sourceforge.plantuml.swing;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;

import net.sourceforge.plantuml.GeneratedImage;
import net.sourceforge.plantuml.Option;
import net.sourceforge.plantuml.SourceFileReader;
import net.sourceforge.plantuml.file.FileWatcher;
import net.sourceforge.plantuml.preproc.Defines;
import net.sourceforge.plantuml.preproc.FileWithSuffix;

@Deprecated
public class DirWatcher {
	// ::remove file when __CORE__

	final private File dir;
	final private Option option;
	final private String pattern;

	final private Map modifieds = new HashMap();

	public DirWatcher(File dir, Option option, String pattern) {
		this.dir = dir;
		this.option = option;
		this.pattern = pattern;
	}

	public List buildCreatedFiles() throws IOException, InterruptedException {
		boolean error = false;
		final List result = new ArrayList<>();
		if (dir.listFiles() != null)
			for (File f : dir.listFiles()) {
				if (error)
					continue;

				if (f.isFile() == false)
					continue;

				if (fileToProcess(f.getName()) == false)
					continue;

				final FileWatcher watcher = modifieds.get(f);

				if (watcher == null || watcher.hasChanged()) {
					final SourceFileReader sourceFileReader = new SourceFileReader(Defines.createWithFileName(f), f,
							option.getOutputDir(), option.getConfig(), option.getCharset(),
							option.getFileFormatOption());
					final Set files = FileWithSuffix.convert(sourceFileReader.getIncludedFiles());
					files.add(f);
					for (GeneratedImage g : sourceFileReader.getGeneratedImages()) {
						result.add(g);
						if (option.isFailfastOrFailfast2() && g.lineErrorRaw() != -1) {
							error = true;
						}
					}
					modifieds.put(f, new FileWatcher(files));
				}
			}
		Collections.sort(result);
		return Collections.unmodifiableList(result);
	}

	public File getErrorFile() throws IOException, InterruptedException {
		if (dir.listFiles() != null)
			for (File f : dir.listFiles()) {
				if (f.isFile() == false)
					continue;

				if (fileToProcess(f.getName()) == false)
					continue;

				final FileWatcher watcher = modifieds.get(f);

				if (watcher == null || watcher.hasChanged()) {
					final SourceFileReader sourceFileReader = new SourceFileReader(Defines.createWithFileName(f), f,
							option.getOutputDir(), option.getConfig(), option.getCharset(),
							option.getFileFormatOption());
					if (sourceFileReader.hasError())
						return f;

				}
			}
		return null;
	}

	private boolean fileToProcess(String name) {
		return name.matches(pattern);
	}

	public final File getDir() {
		return dir;
	}

	// public void setPattern(String pattern) {
	// this.pattern = pattern;
	// }
}