Java Folder Read getFiles(File indir)

Description

Get all files (excluding directories) under dir.

License

Apache License

Declaration

public static Collection<File> getFiles(File indir) 

Method Source Code

//package com.java2s;
/**/* w  w w  .  j  a v  a2s  .c  om*/
 * Copyright ? 2013 - 2017 WaveMaker, Inc.
 *
 * 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.*;
import java.util.ArrayList;

import java.util.Collection;

import java.util.HashSet;
import java.util.List;

public class Main {
    /**
     * Get all files (excluding directories) under dir.
     */
    public static Collection<File> getFiles(File indir) {
        if (!indir.isDirectory()) {
            throw new IllegalArgumentException("Expected directory as input");
        }
        Collection<File> rtn = new HashSet<File>();

        List<File> dirs = new ArrayList<File>();
        dirs.add(indir);

        while (!dirs.isEmpty()) {

            File dir = dirs.remove(0);

            String[] files = dir.list();
            for (String s : files) {
                File f = new File(dir, s);
                if (f.isDirectory()) {
                    dirs.add(f);
                } else {
                    rtn.add(f);
                }
            }
        }

        return rtn;
    }
}

Related

1. getFiles(File file)
2. getFiles(File file, Collection ret)
3. getFiles(File folder)
4. getFiles(File folder)
5. getFiles(File folder)
6. getFiles(File... repertoires)
7. getFiles(final File dir)
8. getFiles(final File root, final String[] endings)
9. getFiles(final String classPath)