1 /*
2  * Copyright (C) 2016 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 
17 package com.android.car.systeminterface;
18 
19 import java.io.File;
20 
21 /**
22  * Interface that abstracts I/O operations
23  */
24 public interface IOInterface {
25     /**
26      * Returns directory for car service which is /data/system/car.
27      * This directory is always available but it should not keep user sensitive data.
28      * @return File for the directory.
29      */
getSystemCarDir()30     File getSystemCarDir();
31 
32     class DefaultImpl implements IOInterface {
33         private final File mSystemCarDir;
34 
DefaultImpl()35         DefaultImpl() {
36             mSystemCarDir = new File("/data/system/car");
37         }
38 
39         @Override
getSystemCarDir()40         public File getSystemCarDir() {
41             return mSystemCarDir;
42         }
43     }
44 }
45