1 /*
2  * Copyright (C) 2020 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 android.server.biometrics;
18 
19 import static com.android.server.biometrics.nano.BiometricServiceStateProto.*;
20 
21 import androidx.annotation.IntDef;
22 import androidx.annotation.NonNull;
23 
24 import com.android.server.biometrics.nano.BiometricServiceStateProto;
25 import com.android.server.biometrics.nano.SensorServiceStateProto;
26 
27 import java.lang.annotation.Retention;
28 import java.lang.annotation.RetentionPolicy;
29 import java.util.ArrayList;
30 import java.util.List;
31 
32 public class BiometricServiceState {
33 
34     /**
35      * Defined in biometrics.proto
36      */
37     @IntDef({
38             STATE_AUTH_IDLE,
39             STATE_AUTH_CALLED,
40             STATE_AUTH_STARTED,
41             STATE_AUTH_STARTED_UI_SHOWING,
42             STATE_AUTH_PAUSED,
43             STATE_AUTH_PAUSED_RESUMING,
44             STATE_AUTH_PENDING_CONFIRM,
45             STATE_AUTHENTICATED_PENDING_SYSUI,
46             STATE_ERROR_PENDING_SYSUI,
47             STATE_SHOWING_DEVICE_CREDENTIAL})
48     @Retention(RetentionPolicy.SOURCE)
49     @interface AuthSessionState {}
50 
51     @AuthSessionState public final int mState;
52     @NonNull public final SensorStates mSensorStates;
53 
54     @NonNull
parseFrom(@onNull BiometricServiceStateProto proto)55     public static BiometricServiceState parseFrom(@NonNull BiometricServiceStateProto proto) {
56         final List<SensorStates> sensorStates = new ArrayList<>();
57         for (SensorServiceStateProto sensorServiceState : proto.sensorServiceStates) {
58             sensorStates.add(SensorStates.parseFrom(sensorServiceState));
59         }
60 
61         @AuthSessionState int state = proto.authSessionState;
62 
63         return new BiometricServiceState(SensorStates.merge(sensorStates), state);
64     }
65 
BiometricServiceState(@onNull SensorStates sensorStates, @AuthSessionState int state)66     private BiometricServiceState(@NonNull SensorStates sensorStates, @AuthSessionState int state) {
67         mSensorStates = sensorStates;
68         mState = state;
69     }
70 
71     @Override
toString()72     public String toString() {
73         final StringBuilder sb = new StringBuilder();
74         sb.append("AuthSessionState: ").append(mState).append(". ");
75         sb.append(mSensorStates.toString());
76         return sb.toString();
77     }
78 }
79