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1   /**
2    * Copyright (c) 2004-2011 QOS.ch
3    * All rights reserved.
4    *
5    * Permission is hereby granted, free  of charge, to any person obtaining
6    * a  copy  of this  software  and  associated  documentation files  (the
7    * "Software"), to  deal in  the Software without  restriction, including
8    * without limitation  the rights to  use, copy, modify,  merge, publish,
9    * distribute,  sublicense, and/or sell  copies of  the Software,  and to
10   * permit persons to whom the Software  is furnished to do so, subject to
11   * the following conditions:
12   *
13   * The  above  copyright  notice  and  this permission  notice  shall  be
14   * included in all copies or substantial portions of the Software.
15   *
16   * THE  SOFTWARE IS  PROVIDED  "AS  IS", WITHOUT  WARRANTY  OF ANY  KIND,
17   * EXPRESS OR  IMPLIED, INCLUDING  BUT NOT LIMITED  TO THE  WARRANTIES OF
18   * MERCHANTABILITY,    FITNESS    FOR    A   PARTICULAR    PURPOSE    AND
19   * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
20   * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
21   * OF CONTRACT, TORT OR OTHERWISE,  ARISING FROM, OUT OF OR IN CONNECTION
22   * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23   *
24   */
25  package org.slf4j.migrator;
26  
27  import java.io.File;
28  import java.util.ArrayList;
29  import java.util.List;
30  
31  import org.slf4j.migrator.internal.ProgressListener;
32  
33  public class FileSelector {
34  
35    private List<File> javaFileList = new ArrayList<File>();
36  
37    ProgressListener pl;
38  
39    FileSelector(ProgressListener pl) {
40      this.pl = pl;
41    }
42  
43    public List<File> selectJavaFilesInFolder(File folder) {
44      if (folder.isDirectory()) {
45        selectFiles(folder);
46        return javaFileList;
47      } else {
48        throw new IllegalArgumentException("[" + folder + "] is not a directory");
49      }
50    }
51  
52    private void selectFiles(File file) {
53      if (file.isDirectory()) {
54        pl.onDirectory(file);
55        File[] files = file.listFiles();
56        if (files != null) {
57          for (int i = 0; i < files.length; i++) {
58            selectFiles(files[i]);
59          }
60        }
61      } else {
62        if (file.getName().endsWith(".java")) {
63          pl.onFileAddition(file);
64          javaFileList.add(file);
65        }
66  
67      }
68    }
69  }