Java Directory Delete nio deleteDirectory(Path directory)

Description

Deletes a file or directory recursivelly if it exists.

License

Apache License

Parameter

Parameter	Description
directory	the directory to delete

Exception

Parameter	Description
IOException	an exception

Declaration

public static void deleteDirectory(Path directory) throws IOException 

Method Source Code

//package com.java2s;
/**//ww  w . j a v a  2s  .com
 * Copyright 2015-2016 Maven Source Dependencies
 * Plugin contributors as indicated by the @author tags.
 *
 * 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 {
    /**
     * Deletes a file or directory recursivelly if it exists.
     *
     * @param directory
     *            the directory to delete
     * @throws IOException
     */
    public static void deleteDirectory(Path directory) throws IOException {
        if (Files.exists(directory)) {
            Files.walkFileTree(directory, new SimpleFileVisitor<Path>() {
                @Override
                public FileVisitResult postVisitDirectory(Path dir,
                        IOException exc) throws IOException {
                    if (exc == null) {
                        Files.delete(dir);
                        return FileVisitResult.CONTINUE;
                    } else {
                        // directory iteration failed; propagate exception
                        throw exc;
                    }
                }

                @Override
                public FileVisitResult visitFile(Path file,
                        BasicFileAttributes attrs) throws IOException {
                    Files.delete(file);
                    return FileVisitResult.CONTINUE;
                }

                @Override
                public FileVisitResult visitFileFailed(Path file,
                        IOException exc) throws IOException {
                    // try to delete the file anyway, even if its attributes
                    // could not be read, since delete-only access is
                    // theoretically possible
                    Files.delete(file);
                    return FileVisitResult.CONTINUE;
                }
            });
        }
    }
}

Related

1. deleteDirectory(File file)
2. deleteDirectory(File path)
3. deleteDirectory(final File directory)
4. deleteDirectory(final Path dir, final int maxDepth)
5. deleteDirectory(Path dir)
6. deleteDirectory(Path directory)
7. deleteDirectory(Path directory)
8. deleteDirectory(Path directory)
9. deleteDirectory(Path dirToDelete)