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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.api.impl.utils;
-
- import java.nio.file.FileVisitResult;
- import java.nio.file.SimpleFileVisitor;
- import java.nio.file.attribute.BasicFileAttributes;
- import org.apache.commons.io.FileUtils;
- import org.sonar.api.Startable;
- import org.sonar.api.utils.TempFolder;
-
- import javax.annotation.Nullable;
-
- import java.io.File;
- import java.io.IOException;
- import java.nio.file.Files;
- import java.nio.file.Path;
- import org.sonar.api.utils.log.Logger;
- import org.sonar.api.utils.log.Loggers;
-
- public class DefaultTempFolder implements TempFolder, Startable {
- private static final Logger LOG = Loggers.get(DefaultTempFolder.class);
-
- private final File tempDir;
- private final boolean deleteOnExit;
-
- public DefaultTempFolder(File tempDir) {
- this(tempDir, false);
- }
-
- public DefaultTempFolder(File tempDir, boolean deleteOnExit) {
- this.tempDir = tempDir;
- this.deleteOnExit = deleteOnExit;
- }
-
- @Override
- public File newDir() {
- return createTempDir(tempDir.toPath()).toFile();
- }
-
- private static Path createTempDir(Path baseDir) {
- try {
- return Files.createTempDirectory(baseDir, null);
- } catch (IOException e) {
- throw new IllegalStateException("Failed to create temp directory", e);
- }
- }
-
- @Override
- public File newDir(String name) {
- File dir = new File(tempDir, name);
- try {
- FileUtils.forceMkdir(dir);
- } catch (IOException e) {
- throw new IllegalStateException("Failed to create temp directory - " + dir, e);
- }
- return dir;
- }
-
- @Override
- public File newFile() {
- return newFile(null, null);
- }
-
- @Override
- public File newFile(@Nullable String prefix, @Nullable String suffix) {
- return createTempFile(tempDir.toPath(), prefix, suffix).toFile();
- }
-
- private static Path createTempFile(Path baseDir, String prefix, String suffix) {
- try {
- return Files.createTempFile(baseDir, prefix, suffix);
- } catch (IOException e) {
- throw new IllegalStateException("Failed to create temp file", e);
- }
- }
-
- public void clean() {
- try {
- if (tempDir.exists()) {
- Files.walkFileTree(tempDir.toPath(), DeleteRecursivelyFileVisitor.INSTANCE);
- }
- } catch (IOException e) {
- LOG.error("Failed to delete temp folder", e);
- }
- }
-
- @Override
- public void start() {
- // nothing to do
- }
-
- @Override
- public void stop() {
- if (deleteOnExit) {
- clean();
- }
- }
-
- private static final class DeleteRecursivelyFileVisitor extends SimpleFileVisitor<Path> {
- public static final DeleteRecursivelyFileVisitor INSTANCE = new DeleteRecursivelyFileVisitor();
-
- @Override
- public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
- Files.deleteIfExists(file);
- return FileVisitResult.CONTINUE;
- }
-
- @Override
- public FileVisitResult postVisitDirectory(Path dir, IOException exc) throws IOException {
- Files.deleteIfExists(dir);
- return FileVisitResult.CONTINUE;
- }
- }
-
- }
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