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/*
* SonarQube
* Copyright (C) 2009-2025 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.application;
import java.io.File;
import java.io.IOException;
import java.nio.file.FileVisitOption;
import java.nio.file.FileVisitResult;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.SimpleFileVisitor;
import java.nio.file.attribute.BasicFileAttributes;
import java.util.EnumSet;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.sonar.application.config.AppSettings;
import org.sonar.core.util.FileUtils;
import org.sonar.process.sharedmemoryfile.AllProcessesCommands;
import static java.lang.String.format;
import static java.nio.file.FileVisitResult.CONTINUE;
import static org.apache.commons.io.FileUtils.forceMkdir;
import static org.sonar.process.ProcessProperties.Property.PATH_DATA;
import static org.sonar.process.ProcessProperties.Property.PATH_LOGS;
import static org.sonar.process.ProcessProperties.Property.PATH_TEMP;
import static org.sonar.process.ProcessProperties.Property.PATH_WEB;
public class AppFileSystem implements FileSystem {
private static final Logger LOG = LoggerFactory.getLogger(AppFileSystem.class);
private static final EnumSet<FileVisitOption> FOLLOW_LINKS = EnumSet.of(FileVisitOption.FOLLOW_LINKS);
private final AppSettings settings;
public AppFileSystem(AppSettings settings) {
this.settings = settings;
}
@Override
public void reset() throws IOException {
createDirectory(PATH_DATA.getKey());
createDirectory(PATH_WEB.getKey());
createDirectory(PATH_LOGS.getKey());
File tempDir = createOrCleanTempDirectory(PATH_TEMP.getKey());
try (AllProcessesCommands allProcessesCommands = new AllProcessesCommands(tempDir)) {
allProcessesCommands.clean();
}
}
@Override
public File getTempDir() {
return settings.getProps().nonNullValueAsFile(PATH_TEMP.getKey());
}
private boolean createDirectory(String propKey) throws IOException {
File dir = settings.getProps().nonNullValueAsFile(propKey);
if (dir.exists()) {
ensureIsNotAFile(propKey, dir);
return false;
}
forceMkdir(dir);
ensureIsNotAFile(propKey, dir);
return true;
}
private static void ensureIsNotAFile(String propKey, File dir) {
if (!dir.isDirectory()) {
throw new IllegalStateException(format("Property '%s' is not valid, not a directory: %s",
propKey, dir.getAbsolutePath()));
}
}
private File createOrCleanTempDirectory(String propKey) throws IOException {
File dir = settings.getProps().nonNullValueAsFile(propKey);
LOG.info("Cleaning or creating temp directory {}", dir.getAbsolutePath());
if (!createDirectory(propKey)) {
Files.walkFileTree(dir.toPath(), FOLLOW_LINKS, CleanTempDirFileVisitor.VISIT_MAX_DEPTH, new CleanTempDirFileVisitor(dir.toPath()));
}
return dir;
}
private static class CleanTempDirFileVisitor extends SimpleFileVisitor<Path> {
private static final Path SHAREDMEMORY_FILE = Paths.get("sharedmemory");
static final int VISIT_MAX_DEPTH = 1;
private final Path path;
private final boolean symLink;
CleanTempDirFileVisitor(Path path) {
this.path = path;
this.symLink = Files.isSymbolicLink(path);
}
@Override
public FileVisitResult visitFile(Path filePath, BasicFileAttributes attrs) {
if (filePath.getFileName().equals(SHAREDMEMORY_FILE)) {
return CONTINUE;
} else if (!symLink || !filePath.equals(path)) {
FileUtils.deleteQuietly(filePath);
}
return CONTINUE;
}
@Override
public FileVisitResult postVisitDirectory(Path dir, IOException exc) {
if (!dir.equals(path)) {
FileUtils.deleteQuietly(dir);
}
return CONTINUE;
}
}
}
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