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
17package com.android.inputmethod.latin.common;
18
19import java.io.File;
20import java.io.FilenameFilter;
21
22/**
23 * A simple class to help with removing directories recursively.
24 */
25public class FileUtils {
26    private static final String TAG = "FileUtils";
27
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
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
57    public static boolean renameTo(final File fromFile, final File toFile) {
58        toFile.delete();
59        return fromFile.renameTo(toFile);
60    }
61}
62