com/android/server/biometrics/sensors/StartUserClient.java

/*
 * Copyright (C) 2021 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.server.biometrics.sensors;

import android.annotation.NonNull;
import android.annotation.Nullable;
import android.content.Context;
import android.hardware.biometrics.BiometricsProtoEnums;
import android.os.IBinder;

import com.android.internal.annotations.VisibleForTesting;
import com.android.server.biometrics.BiometricsProto;

/**
 * Abstract class for starting a new user.
 * @param <T> Interface to request a new user.
 * @param <U> Newly created user object.
 */
public abstract class StartUserClient<T, U>  extends HalClientMonitor<T> {

    /**
     * Invoked when the new user is started.
     * @param <U> New user object.
     */
    public interface UserStartedCallback<U> {
        void onUserStarted(int newUserId, U newUser);
    }

    @NonNull @VisibleForTesting
    protected final UserStartedCallback<U> mUserStartedCallback;

    public StartUserClient(@NonNull Context context, @NonNull LazyDaemon<T> lazyDaemon,
            @Nullable IBinder token, int userId, int sensorId,
            @NonNull UserStartedCallback<U> callback) {
        super(context, lazyDaemon, token, null /* listener */, userId, context.getOpPackageName(),
                0 /* cookie */, sensorId, BiometricsProtoEnums.MODALITY_UNKNOWN,
                BiometricsProtoEnums.ACTION_UNKNOWN, BiometricsProtoEnums.CLIENT_UNKNOWN);
        mUserStartedCallback = callback;
    }

    @Override
    public int getProtoEnum() {
        return BiometricsProto.CM_START_USER;
    }
}