001/**
002 * Copyright (c) 2004-2011 QOS.ch
003 * All rights reserved.
004 *
005 * Permission is hereby granted, free  of charge, to any person obtaining
006 * a  copy  of this  software  and  associated  documentation files  (the
007 * "Software"), to  deal in  the Software without  restriction, including
008 * without limitation  the rights to  use, copy, modify,  merge, publish,
009 * distribute,  sublicense, and/or sell  copies of  the Software,  and to
010 * permit persons to whom the Software  is furnished to do so, subject to
011 * the following conditions:
012 *
013 * The  above  copyright  notice  and  this permission  notice  shall  be
014 * included in all copies or substantial portions of the Software.
015 *
016 * THE  SOFTWARE IS  PROVIDED  "AS  IS", WITHOUT  WARRANTY  OF ANY  KIND,
017 * EXPRESS OR  IMPLIED, INCLUDING  BUT NOT LIMITED  TO THE  WARRANTIES OF
018 * MERCHANTABILITY,    FITNESS    FOR    A   PARTICULAR    PURPOSE    AND
019 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
020 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
021 * OF CONTRACT, TORT OR OTHERWISE,  ARISING FROM, OUT OF OR IN CONNECTION
022 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
023 *
024 */
025package org.slf4j.migrator;
026
027import java.io.File;
028import java.util.ArrayList;
029import java.util.List;
030
031import org.slf4j.migrator.internal.ProgressListener;
032
033public class FileSelector {
034
035    private final List<File> javaFileList = new ArrayList<>();
036
037    ProgressListener pl;
038
039    FileSelector(ProgressListener pl) {
040        this.pl = pl;
041    }
042
043    public List<File> selectJavaFilesInFolder(File folder) {
044        if (folder.isDirectory()) {
045            selectFiles(folder);
046            return javaFileList;
047        } else {
048            throw new IllegalArgumentException("[" + folder + "] is not a directory");
049        }
050    }
051
052    private void selectFiles(File file) {
053        if (file.isDirectory()) {
054            pl.onDirectory(file);
055            File[] files = file.listFiles();
056            if (files != null) {
057                for (File value : files) {
058                    selectFiles(value);
059                }
060            }
061        } else {
062            if (file.getName().endsWith(".java")) {
063                pl.onFileAddition(file);
064                javaFileList.add(file);
065            }
066
067        }
068    }
069}