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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
/* ========================================================================
* 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: 6070 $
*
*/
package net.sourceforge.plantuml;
import java.io.File;
import java.io.IOException;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.TreeMap;
import java.util.concurrent.Callable;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import net.sourceforge.plantuml.preproc.Defines;
public class DirWatcher2 {
final private File dir;
final private Option option;
final private String pattern;
final private Map modifieds = new ConcurrentHashMap();
final private ExecutorService executorService;
public DirWatcher2(File dir, Option option, String pattern) {
this.dir = dir;
this.option = option;
this.pattern = pattern;
final int nb = Option.defaultNbThreads();
this.executorService = Executors.newFixedThreadPool(nb);
}
public Map>> buildCreatedFiles() throws IOException, InterruptedException {
final Map>> result = new TreeMap>>();
if (dir.listFiles() != null) {
for (final 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(new Defines(), f,
option.getOutputDir(), option.getConfig(), option.getCharset(),
option.getFileFormatOption());
modifieds.put(f, new FileWatcher(Collections.singleton(f)));
final Future> value = executorService
.submit(new Callable>() {
public List call() throws Exception {
try {
final List generatedImages = sourceFileReader
.getGeneratedImages();
final Set files = new HashSet(sourceFileReader.getIncludedFiles());
files.add(f);
modifieds.put(f, new FileWatcher(files));
return Collections.unmodifiableList(generatedImages);
} catch (Exception e) {
e.printStackTrace();
return Collections.emptyList();
}
}
});
result.put(f, value);
}
}
}
return Collections.unmodifiableMap(result);
}
private boolean fileToProcess(String name) {
return name.matches(pattern);
}
public final File getDir() {
return dir;
}
public void cancel() {
executorService.shutdownNow();
}
public void waitEnd() throws InterruptedException {
executorService.shutdown();
executorService.awaitTermination(Long.MAX_VALUE, TimeUnit.MILLISECONDS);
}
}