| /* |
| * Copyright (C) 2019 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.Nullable; |
| import android.os.Parcel; |
| import android.os.Parcelable; |
| import android.os.TimestampedValue; |
| |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Objects; |
| |
| /** |
| * A time signal from a network time source like NTP. The value consists of the number of |
| * milliseconds elapsed since 1/1/1970 00:00:00 UTC and the time according to the elapsed realtime |
| * clock when that number was established. The elapsed realtime clock is considered accurate but |
| * volatile, so time signals must not be persisted across device resets. |
| * |
| * @hide |
| */ |
| public final class NetworkTimeSuggestion implements Parcelable { |
| |
| public static final @NonNull Creator<NetworkTimeSuggestion> CREATOR = |
| new Creator<NetworkTimeSuggestion>() { |
| public NetworkTimeSuggestion createFromParcel(Parcel in) { |
| return NetworkTimeSuggestion.createFromParcel(in); |
| } |
| |
| public NetworkTimeSuggestion[] newArray(int size) { |
| return new NetworkTimeSuggestion[size]; |
| } |
| }; |
| |
| @NonNull |
| private final TimestampedValue<Long> mUtcTime; |
| @Nullable |
| private ArrayList<String> mDebugInfo; |
| |
| public NetworkTimeSuggestion(@NonNull TimestampedValue<Long> utcTime) { |
| mUtcTime = Objects.requireNonNull(utcTime); |
| Objects.requireNonNull(utcTime.getValue()); |
| } |
| |
| private static NetworkTimeSuggestion createFromParcel(Parcel in) { |
| TimestampedValue<Long> utcTime = in.readParcelable(null /* classLoader */); |
| NetworkTimeSuggestion suggestion = new NetworkTimeSuggestion(utcTime); |
| @SuppressWarnings("unchecked") |
| ArrayList<String> debugInfo = (ArrayList<String>) in.readArrayList(null /* classLoader */); |
| suggestion.mDebugInfo = debugInfo; |
| return suggestion; |
| } |
| |
| @Override |
| public int describeContents() { |
| return 0; |
| } |
| |
| @Override |
| public void writeToParcel(@NonNull Parcel dest, int flags) { |
| dest.writeParcelable(mUtcTime, 0); |
| dest.writeList(mDebugInfo); |
| } |
| |
| @NonNull |
| public TimestampedValue<Long> getUtcTime() { |
| return mUtcTime; |
| } |
| |
| @NonNull |
| public List<String> getDebugInfo() { |
| return mDebugInfo == null |
| ? Collections.emptyList() : Collections.unmodifiableList(mDebugInfo); |
| } |
| |
| /** |
| * Associates information with the instance that can be useful for debugging / logging. The |
| * information is present in {@link #toString()} but is not considered for |
| * {@link #equals(Object)} and {@link #hashCode()}. |
| */ |
| public void addDebugInfo(String... debugInfos) { |
| if (mDebugInfo == null) { |
| mDebugInfo = new ArrayList<>(); |
| } |
| mDebugInfo.addAll(Arrays.asList(debugInfos)); |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) { |
| return true; |
| } |
| if (o == null || getClass() != o.getClass()) { |
| return false; |
| } |
| NetworkTimeSuggestion that = (NetworkTimeSuggestion) o; |
| return Objects.equals(mUtcTime, that.mUtcTime); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(mUtcTime); |
| } |
| |
| @Override |
| public String toString() { |
| return "NetworkTimeSuggestion{" |
| + "mUtcTime=" + mUtcTime |
| + ", mDebugInfo=" + mDebugInfo |
| + '}'; |
| } |
| } |