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 com.android.server.timezonedetector; 18 19 import android.annotation.NonNull; 20 21 /** 22 * The internal (in-process) system server API for the {@link 23 * com.android.server.timezonedetector.TimeZoneDetectorService}. 24 * 25 * <p>The methods on this class can be called from any thread. 26 * @hide 27 */ 28 public interface TimeZoneDetectorInternal extends Dumpable.Container { 29 30 /** Adds a listener that will be invoked when {@link ConfigurationInternal} may have changed. */ addConfigurationListener(@onNull ConfigurationChangeListener listener)31 void addConfigurationListener(@NonNull ConfigurationChangeListener listener); 32 33 /** 34 * Removes a listener previously added via {@link 35 * #addConfigurationListener(ConfigurationChangeListener)}. 36 */ removeConfigurationListener(@onNull ConfigurationChangeListener listener)37 void removeConfigurationListener(@NonNull ConfigurationChangeListener listener); 38 39 /** 40 * Returns a snapshot of the {@link ConfigurationInternal} for the current user. This is only a 41 * snapshot so callers must use {@link #addConfigurationListener(ConfigurationChangeListener)} 42 * to be notified when it changes. 43 */ 44 @NonNull getCurrentUserConfigurationInternal()45 ConfigurationInternal getCurrentUserConfigurationInternal(); 46 47 /** 48 * Suggests the current time zone, determined using geolocation, to the detector. The 49 * detector may ignore the signal based on system settings, whether better information is 50 * available, and so on. This method may be implemented asynchronously. 51 */ suggestGeolocationTimeZone(@onNull GeolocationTimeZoneSuggestion timeZoneSuggestion)52 void suggestGeolocationTimeZone(@NonNull GeolocationTimeZoneSuggestion timeZoneSuggestion); 53 54 /** Generates a state snapshot for metrics. */ 55 @NonNull generateMetricsState()56 MetricsTimeZoneDetectorState generateMetricsState(); 57 } 58