Java Folder Read by Extension getFiles(File dir, final String extension)

Description

get Files

License

Open Source License

Declaration

public static Map<String, File> getFiles(File dir, final String extension) 

Method Source Code

//package com.java2s;
/*/*  w  w w  .  j a  v  a  2s  .co  m*/
 * The MIT License (MIT)
 *
 * Copyright (c) 2016 Rojoss <http://jroossien.com>
 * Copyright (c) 2016 contributors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

import java.io.File;
import java.io.FilenameFilter;
import java.util.*;

public class Main {
    public static Map<String, File> getFiles(File dir, final String extension) {
        Map<String, File> names = new HashMap<String, File>();
        if (dir == null || !dir.exists() || !dir.isDirectory()) {
            return names;
        }

        File[] files = dir.listFiles(new FilenameFilter() {
            public boolean accept(File dir, String name) {
                return name.toLowerCase().endsWith("." + extension);
            }
        });

        for (File file : files) {
            names.put(file.getName().substring(0, file.getName().length() - extension.length() - 1), file);
        }

        return names;
    }
}

Related

1. getFiles(File baseDir, String validExtension, List files)
2. getFiles(File dir, final String extension)
3. getFiles(File dir, final String extensionFilter)
4. getFiles(File dir, String fileExtension)
5. getFiles(File folder, String... extensions)
6. getFiles(final String path, final String ext)