1 /*
2  * Copyright (C) 2013 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License"); you may not
5  * use this file except in compliance with the License. You may obtain a copy of
6  * the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13  * License for the specific language governing permissions and limitations under
14  * the License.
15  */
16 
17 package com.android.inputmethod.latin.common;
18 
19 import java.io.File;
20 import java.io.FilenameFilter;
21 
22 /**
23  * A simple class to help with removing directories recursively.
24  */
25 public class FileUtils {
26     private static final String TAG = "FileUtils";
27 
deleteRecursively(final File path)28     public static boolean deleteRecursively(final File path) {
29         if (path.isDirectory()) {
30             final File[] files = path.listFiles();
31             if (files != null) {
32                 for (final File child : files) {
33                     deleteRecursively(child);
34                 }
35             }
36         }
37         return path.delete();
38     }
39 
deleteFilteredFiles(final File dir, final FilenameFilter fileNameFilter)40     public static boolean deleteFilteredFiles(final File dir, final FilenameFilter fileNameFilter) {
41         if (!dir.isDirectory()) {
42             return false;
43         }
44         final File[] files = dir.listFiles(fileNameFilter);
45         if (files == null) {
46             return false;
47         }
48         boolean hasDeletedAllFiles = true;
49         for (final File file : files) {
50             if (!deleteRecursively(file)) {
51                 hasDeletedAllFiles = false;
52             }
53         }
54         return hasDeletedAllFiles;
55     }
56 
renameTo(final File fromFile, final File toFile)57     public static boolean renameTo(final File fromFile, final File toFile) {
58         toFile.delete();
59         return fromFile.renameTo(toFile);
60     }
61 }
62