1 /*
2  * Copyright (C) 2023 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.google.snippet.wifi.direct;
18 
19 import android.net.MacAddress;
20 import android.net.wifi.p2p.WifiP2pConfig;
21 
22 import org.json.JSONException;
23 import org.json.JSONObject;
24 
25 /** Deserializes JSONObject into data objects defined in Android API. */
26 public class JsonDeserializer {
27     private static final String PERSISTENT_MODE = "persistent_mode";
28     private static final String DEVICE_ADDRESS = "device_address";
29     private static final String GROUP_CLIENT_IP_PROVISIONING_MODE =
30             "group_client_ip_provisioning_mode";
31     private static final String GROUP_OPERATING_BAND = "group_operating_band";
32     private static final String GROUP_OPERATING_FREQUENCY = "group_operating_frequency";
33     private static final String NETWORK_NAME = "network_name";
34     private static final String PASSPHRASE = "passphrase";
35 
JsonDeserializer()36     private JsonDeserializer() {
37     }
38 
39     /** Converts Python dict to android.net.wifi.p2p.WifiP2pConfig. */
jsonToWifiP2pConfig(JSONObject jsonObject)40     public static WifiP2pConfig jsonToWifiP2pConfig(JSONObject jsonObject) throws JSONException {
41         WifiP2pConfig.Builder builder = new WifiP2pConfig.Builder();
42         if (jsonObject.has(PERSISTENT_MODE)) {
43             builder.enablePersistentMode(jsonObject.getBoolean(PERSISTENT_MODE));
44         }
45         if (jsonObject.has(DEVICE_ADDRESS)) {
46             builder.setDeviceAddress(MacAddress.fromString(jsonObject.getString(DEVICE_ADDRESS)));
47         }
48         if (jsonObject.has(GROUP_CLIENT_IP_PROVISIONING_MODE)) {
49             builder.setGroupClientIpProvisioningMode(
50                     jsonObject.getInt(GROUP_CLIENT_IP_PROVISIONING_MODE));
51         }
52         if (jsonObject.has(GROUP_OPERATING_BAND)) {
53             builder.setGroupOperatingBand(jsonObject.getInt(GROUP_OPERATING_BAND));
54         }
55         if (jsonObject.has(GROUP_OPERATING_FREQUENCY)) {
56             builder.setGroupOperatingFrequency(jsonObject.getInt(GROUP_OPERATING_FREQUENCY));
57         }
58         if (jsonObject.has(NETWORK_NAME)) {
59             builder.setNetworkName(jsonObject.getString(NETWORK_NAME));
60         }
61         if (jsonObject.has(PASSPHRASE)) {
62             builder.setPassphrase(jsonObject.getString(PASSPHRASE));
63         }
64         return builder.build();
65     }
66 }
67 
68