Java File Path Delete deleteDirectoryTree(String directoryPath)

Description

deletes a directory tree, not including the child of directoryPath.

License

Open Source License

Parameter

Parameter	Description
directoryPath	the directory to delete the contents of

Declaration

public static void deleteDirectoryTree(String directoryPath)
        throws Exception 

Method Source Code

//package com.java2s;
/*//from w w w .j  a  va  2s.  c om
 * Copyright (c) 2003-2010 The Regents of the University of California.
 * All rights reserved.
 *
 * '$Author: crawl $'
 * '$Date: 2013-02-21 11:20:05 -0800 (Thu, 21 Feb 2013) $' 
 * '$Revision: 31474 $'
 * 
 * Permission is hereby granted, without written agreement and without
 * license or royalty fees, to use, copy, modify, and distribute this
 * software and its documentation for any purpose, provided that the above
 * copyright notice and the following two paragraphs appear in all copies
 * of this software.
 *
 * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY
 * FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
 * THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE
 * PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF
 * CALIFORNIA HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES,
 * ENHANCEMENTS, OR MODIFICATIONS.
 *
 */

import java.io.File;

import java.util.Vector;

public class Main {
    /**
     * deletes a directory tree, not including the child of directoryPath. if
     * directoryPath == "/temp/cache" all of the contents of 'cache' will be
     * deleted but not 'cache' itself
     * 
     * @param directoryPath
     *            the directory to delete the contents of
     */
    public static void deleteDirectoryTree(String directoryPath)
            throws Exception {
        long length = 0;
        File root = new File(directoryPath);
        if (!root.isDirectory()) {
            throw new Exception("The path " + root.getAbsolutePath()
                    + " specified is not a directory");
        }
        if (!root.exists()) {
            throw new Exception("The path " + root.getAbsolutePath()
                    + " does not exist.");
        }
        if (!root.canWrite()) {
            throw new Exception("Invalid write permissions on the path "
                    + root.getAbsolutePath());
        }

        String[] listing = root.list();
        Vector dirs = new Vector();
        // delete the files
        for (int i = 0; i < listing.length; i++) {
            File f = new File(directoryPath + "/" + listing[i]);
            if (f.isFile()) {
                if (!f.delete()) {
                    throw new Exception("Could not delete "
                            + f.getAbsolutePath());
                }
            } else if (f.isDirectory()) {
                dirs.addElement(f);
            }
        }

        // recurse into each directory
        for (int i = 0; i < dirs.size(); i++) {
            File f = (File) dirs.elementAt(i);
            deleteDirectoryTree(f.getAbsolutePath());
            if (!f.delete()) { // delete this directory
                throw new Exception("Could not delete "
                        + f.getAbsolutePath());
            }
        }
    }
}

Related

1. deleteDirectoryContents(String directoryPath, boolean deleteChildDirectories)
2. deleteDirectoryIncludeContent(String folderPath)
3. deleteDirectoryInternal(File path)
4. deleteDirectoryRecursively(File path)
5. deleteDirectoryRecursivly(String path)
6. deleteDirRecursive(String dirPath)
7. deleteDirRecursive(String path)
8. deleteDirs(File path)
9. deleteDirs(String pathname)