1 /*
2  * Copyright (C) 2017 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.car.settings.wifi.details;
17 
18 import android.car.drivingstate.CarUxRestrictions;
19 import android.content.Context;
20 
21 import com.android.car.settings.common.FragmentController;
22 
23 import java.net.InetAddress;
24 import java.util.stream.Collectors;
25 
26 /**
27  * Shows info about Wifi DNS info.
28  */
29 public class WifiDnsPreferenceController extends
30         WifiDetailsBasePreferenceController<WifiDetailsPreference> {
31 
WifiDnsPreferenceController(Context context, String preferenceKey, FragmentController fragmentController, CarUxRestrictions uxRestrictions)32     public WifiDnsPreferenceController(Context context, String preferenceKey,
33             FragmentController fragmentController, CarUxRestrictions uxRestrictions) {
34         super(context, preferenceKey, fragmentController, uxRestrictions);
35     }
36 
37     @Override
getPreferenceType()38     protected Class<WifiDetailsPreference> getPreferenceType() {
39         return WifiDetailsPreference.class;
40     }
41 
42     @Override
updateState(WifiDetailsPreference preference)43     protected void updateState(WifiDetailsPreference preference) {
44         String dnsServers = getWifiInfoProvider().getLinkProperties().getDnsServers().stream()
45                 .map(InetAddress::getHostAddress)
46                 .collect(Collectors.joining(System.lineSeparator()));
47 
48         if (dnsServers == null) {
49             preference.setVisible(false);
50         } else {
51             preference.setDetailText(dnsServers);
52             preference.setVisible(true);
53         }
54     }
55 }
56