| /* |
| * Copyright (C) 2018 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 android.app.timedetector; |
| |
| import android.annotation.NonNull; |
| import android.annotation.RequiresPermission; |
| import android.annotation.SystemService; |
| import android.content.Context; |
| import android.os.RemoteException; |
| import android.os.ServiceManager; |
| import android.os.ServiceManager.ServiceNotFoundException; |
| import android.os.SystemClock; |
| import android.util.Log; |
| import android.util.TimestampedValue; |
| |
| /** |
| * The interface through which system components can send signals to the TimeDetectorService. |
| * @hide |
| */ |
| @SystemService(Context.TIME_DETECTOR_SERVICE) |
| public class TimeDetector { |
| private static final String TAG = "timedetector.TimeDetector"; |
| private static final boolean DEBUG = false; |
| |
| private final ITimeDetectorService mITimeDetectorService; |
| |
| public TimeDetector() throws ServiceNotFoundException { |
| mITimeDetectorService = ITimeDetectorService.Stub.asInterface( |
| ServiceManager.getServiceOrThrow(Context.TIME_DETECTOR_SERVICE)); |
| } |
| |
| /** |
| * Suggests the current phone-signal derived time to the detector. The detector may ignore the |
| * signal if better signals are available such as those that come from more reliable sources or |
| * were determined more recently. |
| */ |
| @RequiresPermission(android.Manifest.permission.SUGGEST_PHONE_TIME_AND_ZONE) |
| public void suggestPhoneTime(@NonNull PhoneTimeSuggestion timeSuggestion) { |
| if (DEBUG) { |
| Log.d(TAG, "suggestPhoneTime called: " + timeSuggestion); |
| } |
| try { |
| mITimeDetectorService.suggestPhoneTime(timeSuggestion); |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| } |
| |
| /** |
| * Suggests the user's manually entered current time to the detector. |
| */ |
| @RequiresPermission(android.Manifest.permission.SUGGEST_MANUAL_TIME_AND_ZONE) |
| public void suggestManualTime(@NonNull ManualTimeSuggestion timeSuggestion) { |
| if (DEBUG) { |
| Log.d(TAG, "suggestManualTime called: " + timeSuggestion); |
| } |
| try { |
| mITimeDetectorService.suggestManualTime(timeSuggestion); |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| } |
| |
| /** |
| * A shared utility method to create a {@link ManualTimeSuggestion}. |
| */ |
| public static ManualTimeSuggestion createManualTimeSuggestion(long when, String why) { |
| TimestampedValue<Long> utcTime = |
| new TimestampedValue<>(SystemClock.elapsedRealtime(), when); |
| ManualTimeSuggestion manualTimeSuggestion = new ManualTimeSuggestion(utcTime); |
| manualTimeSuggestion.addDebugInfo(why); |
| return manualTimeSuggestion; |
| } |
| |
| /** |
| * Suggests the time according to a network time source like NTP. |
| */ |
| @RequiresPermission(android.Manifest.permission.SET_TIME) |
| public void suggestNetworkTime(NetworkTimeSuggestion timeSuggestion) { |
| if (DEBUG) { |
| Log.d(TAG, "suggestNetworkTime called: " + timeSuggestion); |
| } |
| try { |
| mITimeDetectorService.suggestNetworkTime(timeSuggestion); |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| } |
| } |