1 /*
2  * Copyright (C) 2022 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 package com.android.server.uwb.discovery;
17 
18 import android.util.Log;
19 
20 /** Abstract class for Discovery Provider */
21 public abstract class DiscoveryProvider {
22     private static final String TAG = DiscoveryProvider.class.getSimpleName();
23 
24     /* Indicates whether the server has started.
25      */
26     protected boolean mStarted = false;
27 
28     /**
29      * Checks if the server has started.
30      *
31      * @return indicates if the server has started.
32      */
isStarted()33     public boolean isStarted() {
34         return mStarted;
35     }
36 
37     /**
38      * Starts the discovery.
39      *
40      * @return indicates if successfully started.
41      */
start()42     public boolean start() {
43         if (isStarted()) {
44             Log.i(TAG, "Discovery already started.");
45             return false;
46         }
47         return true;
48     }
49 
50     /**
51      * Stops the discovery.
52      *
53      * @return indicates if successfully stopped.
54      */
stop()55     public boolean stop() {
56         if (!isStarted()) {
57             Log.i(TAG, "Discovery already stopped.");
58             return false;
59         }
60         return true;
61     }
62 }
63