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 android.content.Context;
20 
21 import java.io.File;
22 
23 /**
24  * Interface that abstracts I/O operations
25  */
26 public interface IOInterface {
27     /**
28      * Returns directory for car service which is /data/system/car.
29      * This directory is always available but it should not keep user sensitive data.
30      * @return File for the directory.
31      */
getSystemCarDir()32     File getSystemCarDir();
33 
34     class DefaultImpl implements IOInterface {
35         private final File mSystemCarDir;
36 
DefaultImpl(Context context)37         DefaultImpl(Context context) {
38             mSystemCarDir = new File("/data/system/car");
39         }
40 
41         @Override
getSystemCarDir()42         public File getSystemCarDir() {
43             return mSystemCarDir;
44         }
45     }
46 }
47