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/*
* SonarQube
* Copyright (C) 2009-2020 SonarSource SA
* mailto:info AT sonarsource DOT com
*
* This program 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.
*
* This program is 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 program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.sonar.scanner.scan;
import java.io.IOException;
import java.nio.channels.OverlappingFileLockException;
import java.nio.file.Files;
import java.nio.file.Path;
import org.picocontainer.Startable;
import org.sonar.api.batch.fs.internal.AbstractProjectOrModule;
public class ProjectLock implements Startable {
private final DirectoryLock lock;
public ProjectLock(AbstractProjectOrModule project) {
Path directory = project.getWorkDir();
try {
if (!directory.toFile().exists()) {
Files.createDirectories(directory);
}
} catch (IOException e) {
throw new IllegalStateException("Failed to create work directory", e);
}
this.lock = new DirectoryLock(directory.toAbsolutePath());
}
public void tryLock() {
try {
if (!lock.tryLock()) {
failAlreadyInProgress(null);
}
} catch (OverlappingFileLockException e) {
failAlreadyInProgress(e);
}
}
private static void failAlreadyInProgress(Exception e) {
throw new IllegalStateException("Another SonarQube analysis is already in progress for this project", e);
}
@Override
public void stop() {
lock.unlock();
}
@Override
public void start() {
// nothing to do
}
}
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