Java Directory Delete nio deleteDirIfExists(Path dirPath)

Description

delete Dir If Exists

License

Open Source License

Declaration

public static void deleteDirIfExists(Path dirPath) throws IOException 

Method Source Code

//package com.java2s;
/**/* w  w w.  j  a v  a 2 s  . c o  m*/
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * Licensed 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.
 */

import java.io.IOException;

import java.nio.file.FileVisitResult;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.SimpleFileVisitor;

import java.nio.file.attribute.BasicFileAttributes;

public class Main {
    public static void deleteDirIfExists(Path dirPath) throws IOException {
        if (Files.exists(dirPath)) {
            deleteDir(dirPath);
        }
    }

    public static void deleteDir(Path dirPath) throws IOException {
        Files.walkFileTree(dirPath, new SimpleFileVisitor<Path>() {

            @Override
            public FileVisitResult postVisitDirectory(Path dirPath, IOException ioe) throws IOException {
                Files.delete(dirPath);

                return FileVisitResult.CONTINUE;
            }

            @Override
            public FileVisitResult visitFile(Path path, BasicFileAttributes basicFileAttributes)
                    throws IOException {

                Files.delete(path);

                return FileVisitResult.CONTINUE;
            }

        });
    }
}

Related

1. deleteDirectoryAndContents(String dir)
2. deleteDirectoryRecursively(Path dir)
3. deleteDirectoryRecursively(Path path)
4. deleteDirectorySelectively(Path path, Predicate predicate)
5. deleteDirIfEmpty(Path dir)
6. deleteDirOrFile(Path p, boolean followSymLinkDir)
7. deleteDirReqursivelyIfExists(File dir)
8. deleteDirWithFiles(File dir, int maxDepth)
9. deleteFileOrDirectory(File file)