| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.tomee.server.composer; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.nio.file.FileVisitResult; |
| import java.nio.file.FileVisitor; |
| import java.nio.file.Path; |
| import java.nio.file.attribute.BasicFileAttributes; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| public class CleanOnExit { |
| |
| private final List<File> files = new ArrayList<>(); |
| private final List<Process> processes = new ArrayList<>(); |
| |
| public CleanOnExit() { |
| Runtime.getRuntime().addShutdownHook(new Thread(this::clean)); |
| } |
| |
| public File clean(final File file) { |
| this.files.add(file); |
| return file; |
| } |
| |
| public Process clean(final Process process) { |
| this.processes.add(process); |
| return process; |
| } |
| |
| public void clean() { |
| processes.stream().forEach(Process::destroy); |
| for (final Process process : processes) { |
| try { |
| process.waitFor(); |
| } catch (InterruptedException e) { |
| Thread.interrupted(); |
| } |
| } |
| files.stream().forEach(this::delete); |
| } |
| |
| private void delete(final File file) { |
| try { |
| java.nio.file.Files.walkFileTree(file.toPath(), new RecursiveDelete()); |
| } catch (IOException e) { |
| e.printStackTrace(); |
| } |
| } |
| |
| private static class RecursiveDelete implements FileVisitor<Path> { |
| @Override |
| public FileVisitResult preVisitDirectory(final Path dir, final BasicFileAttributes attrs) throws IOException { |
| return FileVisitResult.CONTINUE; |
| } |
| |
| @Override |
| public FileVisitResult visitFile(final Path file, final BasicFileAttributes attrs) throws IOException { |
| java.nio.file.Files.deleteIfExists(file); |
| return FileVisitResult.CONTINUE; |
| } |
| |
| @Override |
| public FileVisitResult visitFileFailed(final Path file, final IOException exc) throws IOException { |
| return FileVisitResult.CONTINUE; |
| } |
| |
| @Override |
| public FileVisitResult postVisitDirectory(final Path dir, final IOException exc) throws IOException { |
| java.nio.file.Files.deleteIfExists(dir); |
| return FileVisitResult.CONTINUE; |
| } |
| } |
| } |