Android Directory Clean cleanDirectory(File directory)

Description

clean Directory

License

Open Source License

Declaration

public static void cleanDirectory(File directory) throws IOException 

Method Source Code

//package com.java2s;
/*//from   ww w  .ja va2  s .c  om
 * Copyright (c) 2002-2012 Alibaba Group Holding Limited.
 * 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.File;

import java.io.IOException;

public class Main {
    public static void cleanDirectory(String directory) throws IOException {
        cleanDirectory(new File(directory));
    }

    public static void cleanDirectory(File directory) throws IOException {
        if (!directory.exists()) {
            String message = directory + " does not exist";

            throw new IllegalArgumentException(message);
        }

        if (!directory.isDirectory()) {
            String message = directory + " is not a directory";

            throw new IllegalArgumentException(message);
        }

        IOException exception = null;
        File[] files = directory.listFiles();

        for (File file : files) {
            try {
                forceDelete(file);
            } catch (IOException ioe) {
                exception = ioe;
            }
        }

        if (null != exception) {
            throw exception;
        } else {
            return;
        }
    }

    public static void forceDelete(String file) throws IOException {
        forceDelete(new File(file));
    }

    public static void forceDelete(File file) throws IOException {
        if (file.isDirectory()) {
            deleteDirectory(file);
        } else if (!file.delete()) {
            String message = "File " + file + " unable to be deleted.";

            throw new IOException(message);
        }
    }

    public static void deleteDirectory(String directory) throws IOException {
        deleteDirectory(new File(directory));
    }

    public static void deleteDirectory(File directory) throws IOException {
        if (!directory.exists()) {
            return;
        }

        cleanDirectory(directory);

        if (!directory.delete()) {
            String message = "Directory " + directory
                    + " unable to be deleted.";

            throw new IOException(message);
        } else {
            return;
        }
    }
}

Related

1. cleanDirectory(File directory)
2. cleanDirectory(String directory)
3. cleanDirectory(final File directory)
4. clearDir(String dirPath)