1/*
2 * Copyright (C) 2014 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of 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,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package android.test.wakeuploop;
18
19import android.util.Log;
20
21import java.io.File;
22import java.io.FileOutputStream;
23import java.io.IOException;
24import java.text.DateFormat;
25import java.text.SimpleDateFormat;
26import java.util.Date;
27
28public class FileUtil {
29
30    private static FileUtil sInst = null;
31    private static DateFormat sDateFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
32
33    private FileUtil() {};
34
35    public static FileUtil get() {
36        if (sInst == null) {
37            sInst = new FileUtil();
38        }
39        return sInst;
40    }
41
42    public void writeDateToFile(File file) {
43        try {
44            FileOutputStream fos = new FileOutputStream(file);
45            fos.write(sDateFormat.format(new Date()).getBytes());
46            fos.write('\n');
47            fos.flush();
48            fos.close();
49        } catch (IOException ioe) {
50            Log.e("FileUtil", "exception writing date to file", ioe);
51        }
52    }
53}
54