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/*
* SonarQube
* Copyright (C) 2009-2022 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.bootstrap;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.channels.FileChannel;
import java.nio.channels.FileLock;
import java.nio.channels.OverlappingFileLockException;
import org.apache.commons.io.FileUtils;
import org.sonar.api.utils.ZipUtils;
import org.sonar.core.platform.ExplodedPlugin;
import org.sonar.core.platform.PluginInfo;
import org.sonar.core.platform.PluginJarExploder;
import static org.sonar.core.util.FileUtils.deleteQuietly;
public class ScannerPluginJarExploder extends PluginJarExploder {
private final PluginFiles pluginFiles;
public ScannerPluginJarExploder(PluginFiles pluginFiles) {
this.pluginFiles = pluginFiles;
}
@Override
public ExplodedPlugin explode(PluginInfo info) {
try {
File dir = unzipFile(info.getNonNullJarFile());
return explodeFromUnzippedDir(info, info.getNonNullJarFile(), dir);
} catch (Exception e) {
throw new IllegalStateException(String.format("Fail to open plugin [%s]: %s", info.getKey(), info.getNonNullJarFile().getAbsolutePath()), e);
}
}
private File unzipFile(File cachedFile) throws IOException {
String filename = cachedFile.getName();
File destDir = new File(cachedFile.getParentFile(), filename + "_unzip");
File lockFile = new File(cachedFile.getParentFile(), filename + "_unzip.lock");
if (!destDir.exists()) {
try (FileOutputStream out = new FileOutputStream(lockFile)) {
FileLock lock = createLockWithRetries(out.getChannel());
try {
// Recheck in case of concurrent processes
if (!destDir.exists()) {
File tempDir = pluginFiles.createTempDir();
ZipUtils.unzip(cachedFile, tempDir, newLibFilter());
FileUtils.moveDirectory(tempDir, destDir);
}
} finally {
lock.release();
}
} finally {
deleteQuietly(lockFile);
}
}
return destDir;
}
private static FileLock createLockWithRetries(FileChannel channel) throws IOException {
int tryCount = 0;
while (tryCount++ < 10) {
try {
return channel.lock();
} catch (OverlappingFileLockException ofle) {
// ignore overlapping file exception
}
try {
Thread.sleep(200L * tryCount);
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
}
}
throw new IOException("Unable to get lock after " + tryCount + " tries");
}
}
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