Add a path for GNSS time suggestions (7af0bcac) · Commits · e / os / android_frameworks_base

core/java/android/app/timedetector/GnssTimeSuggestion.aidl

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			/*
			* 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 android.app.timedetector;

			parcelable GnssTimeSuggestion;

core/java/android/app/timedetector/GnssTimeSuggestion.java

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			/*
			* 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 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 GNSS source.
			*
			* <p>{@code utcTime} is the suggested time. The {@code utcTime.value} is the number of milliseconds
			* elapsed since 1/1/1970 00:00:00 UTC. The {@code utcTime.referenceTimeMillis} is the value of the
			* elapsed realtime clock when the {@code utcTime.value} was established.
			* Note that the elapsed realtime clock is considered accurate but it is volatile, so time
			* suggestions cannot be persisted across device resets.
			*
			* <p>{@code debugInfo} contains debugging metadata associated with the suggestion. This is used to
			* record why the suggestion exists and how it was entered. This information exists only to aid in
			* debugging and therefore is used by {@link #toString()}, but it is not for use in detection
			* logic and is not considered in {@link #hashCode()} or {@link #equals(Object)}.
			*
			* @hide
			*/
			public final class GnssTimeSuggestion implements Parcelable {

			public static final @NonNull Creator<GnssTimeSuggestion> CREATOR =
			new Creator<GnssTimeSuggestion>() {
			public GnssTimeSuggestion createFromParcel(Parcel in) {
			return GnssTimeSuggestion.createFromParcel(in);
			}

			public GnssTimeSuggestion[] newArray(int size) {
			return new GnssTimeSuggestion[size];
			}
			};

			@NonNull private final TimestampedValue<Long> mUtcTime;
			@Nullable private ArrayList<String> mDebugInfo;

			public GnssTimeSuggestion(@NonNull TimestampedValue<Long> utcTime) {
			mUtcTime = Objects.requireNonNull(utcTime);
			Objects.requireNonNull(utcTime.getValue());
			}

			private static GnssTimeSuggestion createFromParcel(Parcel in) {
			TimestampedValue<Long> utcTime = in.readParcelable(null /* classLoader */);
			GnssTimeSuggestion suggestion = new GnssTimeSuggestion(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;
			}
			GnssTimeSuggestion that = (GnssTimeSuggestion) o;
			return Objects.equals(mUtcTime, that.mUtcTime);
			}

			@Override
			public int hashCode() {
			return Objects.hash(mUtcTime);
			}

			@Override
			public String toString() {
			return "GnssTimeSuggestion{"
			+ "mUtcTime=" + mUtcTime
			+ ", mDebugInfo=" + mDebugInfo
			+ '}';
			}
			}

core/java/android/app/timedetector/ITimeDetectorService.aidl

+2 −0

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	@@ -16,6 +16,7 @@

	package android.app.timedetector;		package android.app.timedetector;

			import android.app.timedetector.GnssTimeSuggestion;
	import android.app.timedetector.ManualTimeSuggestion;		import android.app.timedetector.ManualTimeSuggestion;
	import android.app.timedetector.NetworkTimeSuggestion;		import android.app.timedetector.NetworkTimeSuggestion;
	import android.app.timedetector.TelephonyTimeSuggestion;		import android.app.timedetector.TelephonyTimeSuggestion;
	@@ -34,6 +35,7 @@ import android.app.timedetector.TelephonyTimeSuggestion;
	* {@hide}		* {@hide}
	*/		*/
	interface ITimeDetectorService {		interface ITimeDetectorService {
			void suggestGnssTime(in GnssTimeSuggestion timeSuggestion);
	boolean suggestManualTime(in ManualTimeSuggestion timeSuggestion);		boolean suggestManualTime(in ManualTimeSuggestion timeSuggestion);
	void suggestNetworkTime(in NetworkTimeSuggestion timeSuggestion);		void suggestNetworkTime(in NetworkTimeSuggestion timeSuggestion);
	void suggestTelephonyTime(in TelephonyTimeSuggestion timeSuggestion);		void suggestTelephonyTime(in TelephonyTimeSuggestion timeSuggestion);

core/java/android/app/timedetector/TimeDetector.java

+8 −0

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	@@ -71,4 +71,12 @@ public interface TimeDetector {
	*/		*/
	@RequiresPermission(android.Manifest.permission.SET_TIME)		@RequiresPermission(android.Manifest.permission.SET_TIME)
	void suggestNetworkTime(NetworkTimeSuggestion timeSuggestion);		void suggestNetworkTime(NetworkTimeSuggestion timeSuggestion);

			/**
			* Suggests the time according to a gnss time source.
			*
			* @hide
			*/
			@RequiresPermission(android.Manifest.permission.SET_TIME)
			void suggestGnssTime(GnssTimeSuggestion timeSuggestion);
	}		}

core/java/android/app/timedetector/TimeDetectorImpl.java

+12 −0

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	@@ -74,4 +74,16 @@ public final class TimeDetectorImpl implements TimeDetector {
	throw e.rethrowFromSystemServer();		throw e.rethrowFromSystemServer();
	}		}
	}		}

			@Override
			public void suggestGnssTime(GnssTimeSuggestion timeSuggestion) {
			if (DEBUG) {
			Log.d(TAG, "suggestGnssTime called: " + timeSuggestion);
			}
			try {
			mITimeDetectorService.suggestGnssTime(timeSuggestion);
			} catch (RemoteException e) {
			throw e.rethrowFromSystemServer();
			}
			}
	}		}