| /* |
| * Copyright (C) 2020 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.util.SparseArray; |
| |
| /** |
| * Tracks biometric performance across sensors and users. |
| */ |
| public class PerformanceTracker { |
| |
| private static final String TAG = "PerformanceTracker"; |
| // Keyed by SensorId |
| private static SparseArray<PerformanceTracker> sTrackers; |
| |
| public static PerformanceTracker getInstanceForSensorId(int sensorId) { |
| if (sTrackers == null) { |
| sTrackers = new SparseArray<>(); |
| } |
| |
| if (!sTrackers.contains(sensorId)) { |
| sTrackers.put(sensorId, new PerformanceTracker()); |
| } |
| return sTrackers.get(sensorId); |
| } |
| |
| private static class Info { |
| int mAccept; // number of accepted biometrics |
| int mReject; // number of rejected biometrics |
| int mAcquire; // total number of acquisitions. |
| |
| int mAcceptCrypto; |
| int mRejectCrypto; |
| int mAcquireCrypto; |
| |
| int mTimedLockout; // total number of lockouts |
| int mPermanentLockout; // total number of permanent lockouts |
| } |
| |
| // Keyed by UserId |
| private final SparseArray<Info> mAllUsersInfo; |
| private int mHALDeathCount; |
| |
| private PerformanceTracker() { |
| mAllUsersInfo = new SparseArray<>(); |
| } |
| |
| private void createUserEntryIfNecessary(int userId) { |
| if (!mAllUsersInfo.contains(userId)) { |
| mAllUsersInfo.put(userId, new Info()); |
| } |
| } |
| |
| public void incrementAuthForUser(int userId, boolean accepted) { |
| createUserEntryIfNecessary(userId); |
| |
| if (accepted) { |
| mAllUsersInfo.get(userId).mAccept++; |
| } else { |
| mAllUsersInfo.get(userId).mReject++; |
| } |
| } |
| |
| void incrementCryptoAuthForUser(int userId, boolean accepted) { |
| createUserEntryIfNecessary(userId); |
| |
| if (accepted) { |
| mAllUsersInfo.get(userId).mAcceptCrypto++; |
| } else { |
| mAllUsersInfo.get(userId).mRejectCrypto++; |
| } |
| } |
| |
| void incrementAcquireForUser(int userId, boolean isCrypto) { |
| createUserEntryIfNecessary(userId); |
| |
| if (isCrypto) { |
| mAllUsersInfo.get(userId).mAcquireCrypto++; |
| } else { |
| mAllUsersInfo.get(userId).mAcquire++; |
| } |
| } |
| |
| void incrementTimedLockoutForUser(int userId) { |
| createUserEntryIfNecessary(userId); |
| |
| mAllUsersInfo.get(userId).mTimedLockout++; |
| } |
| |
| void incrementPermanentLockoutForUser(int userId) { |
| createUserEntryIfNecessary(userId); |
| |
| mAllUsersInfo.get(userId).mPermanentLockout++; |
| } |
| |
| public void incrementHALDeathCount() { |
| mHALDeathCount++; |
| } |
| |
| public void clear() { |
| mAllUsersInfo.clear(); |
| mHALDeathCount = 0; |
| } |
| |
| public int getAcceptForUser(int userId) { |
| return mAllUsersInfo.contains(userId) ? mAllUsersInfo.get(userId).mAccept : 0; |
| } |
| |
| public int getRejectForUser(int userId) { |
| return mAllUsersInfo.contains(userId) ? mAllUsersInfo.get(userId).mReject : 0; |
| } |
| |
| public int getAcquireForUser(int userId) { |
| return mAllUsersInfo.contains(userId) ? mAllUsersInfo.get(userId).mAcquire : 0; |
| } |
| |
| public int getAcceptCryptoForUser(int userId) { |
| return mAllUsersInfo.contains(userId) ? mAllUsersInfo.get(userId).mAcceptCrypto : 0; |
| } |
| |
| public int getRejectCryptoForUser(int userId) { |
| return mAllUsersInfo.contains(userId) ? mAllUsersInfo.get(userId).mRejectCrypto : 0; |
| } |
| |
| public int getAcquireCryptoForUser(int userId) { |
| return mAllUsersInfo.contains(userId) ? mAllUsersInfo.get(userId).mAcquireCrypto : 0; |
| } |
| |
| public int getTimedLockoutForUser(int userId) { |
| return mAllUsersInfo.contains(userId) ? mAllUsersInfo.get(userId).mTimedLockout : 0; |
| } |
| |
| public int getPermanentLockoutForUser(int userId) { |
| return mAllUsersInfo.contains(userId) ? mAllUsersInfo.get(userId).mPermanentLockout : 0; |
| } |
| |
| public int getHALDeathCount() { |
| return mHALDeathCount; |
| } |
| } |