Java Delete File Recursively deleteRecursive(final File file, final boolean collect)

Description

delete Recursive

License

Open Source License

Declaration

private static boolean deleteRecursive(final File file, final boolean collect) 

Method Source Code

//package com.java2s;
/*******************************************************************************
 * Copyright (c) 2019 Red Hat, Inc.//from   w  w w  .j a  v  a 2 s .  com
 * Distributed under license by Red Hat, Inc. All rights reserved.
 * This program is made available under the terms of the
 * Eclipse Public License v1.0 which accompanies this distribution,
 * and is available at http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *   Red Hat, Inc. - initial API and implementation
 ******************************************************************************/

import java.io.File;

public class Main {
    private static boolean deleteRecursive(final File file, final boolean collect) {
        boolean result = true;
        if (collect && isWindows()) {
            System.gc(); // ensure no lingering handles that would prevent deletion
        }

        File[] children = file.listFiles();
        if (children != null) {
            for (File sf : children) {
                if (sf.isDirectory()) {
                    if (!deleteRecursive(sf, false))
                        result = false;
                } else {
                    if (!sf.delete())
                        result = false;
                }
            }
        }

        return file.delete() && result;
    }

    private static boolean isWindows() {
        return System.getProperty("os.name").startsWith("Windows"); //$NON-NLS-1$ //$NON-NLS-2$
    }

    /**
     * Delete the file or directory, recursively if specified.
     */
    public static boolean delete(File file, final boolean recursive) {
        boolean result = false;
        if (recursive) {
            result = deleteRecursive(file, true);
        } else {
            if ((file.listFiles() != null) && (file.listFiles().length != 0)) {
                throw new RuntimeException("directory not empty"); //$NON-NLS-1$
            }

            if (isWindows()) {
                System.gc(); // ensure no lingering handles that would prevent
                             // deletion
            }

            result = file.delete();
        }
        return result;
    }
}

Related

1. deleteRecursive(File toDelete)
2. deleteRecursive(final File dir)
3. deleteRecursive(final File file)
4. deleteRecursive(final File file)
5. deleteRecursive(final File file)
6. deleteRecursiveDir(File directory)
7. deleteRecursiveDirectories(String mainDir)
8. deleteRecursiveDirectory(String dirName)
9. deleteRecursiveFileDir(File dir)