Merge "Add server flag for the lower bound" into sc-dev am: c277d49287 (02f2b985) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/timedetector/ServerFlags.java

+31 −0

Original line number	Diff line number	Diff line
		@@ -30,7 +30,9 @@ import com.android.server.timezonedetector.ServiceConfigAccessor;

		import java.lang.annotation.Retention;
		import java.lang.annotation.RetentionPolicy;
		import java.time.DateTimeException;
		import java.time.Duration;
		import java.time.Instant;
		import java.util.Map;
		import java.util.Objects;
		import java.util.Optional;
		@@ -62,6 +64,8 @@ public final class ServerFlags {
		KEY_LOCATION_TIME_ZONE_DETECTION_UNCERTAINTY_DELAY_MILLIS,
		KEY_LOCATION_TIME_ZONE_DETECTION_SETTING_ENABLED_OVERRIDE,
		KEY_LOCATION_TIME_ZONE_DETECTION_SETTING_ENABLED_DEFAULT,
		KEY_TIME_DETECTOR_LOWER_BOUND_MILLIS_OVERRIDE,
		KEY_TIME_DETECTOR_ORIGIN_PRIORITIES_OVERRIDE,
		})
		@Retention(RetentionPolicy.SOURCE)
		@interface DeviceConfigKey {}
		@@ -144,6 +148,14 @@ public final class ServerFlags {
		public static final String KEY_TIME_DETECTOR_ORIGIN_PRIORITIES_OVERRIDE =
		"time_detector_origin_priorities_override";

		/**
		* The key to override the time detector lower bound configuration. The values is the number of
		* milliseconds since the beginning of the Unix epoch.
		*/
		@DeviceConfigKey
		public static final String KEY_TIME_DETECTOR_LOWER_BOUND_MILLIS_OVERRIDE =
		"time_detector_lower_bound_millis_override";

		@GuardedBy("mListeners")
		private final ArrayMap<ConfigurationChangeListener, Set<String>> mListeners = new ArrayMap<>();

		@@ -230,6 +242,25 @@ public final class ServerFlags {
		return Optional.of(string.get().split(","));
		}

		/**
		* Returns an {@link Instant} from {@link DeviceConfig} from the system_time
		* namespace, returns the {@code defaultValue} if the value is missing or invalid.
		*/
		@NonNull
		public Optional<Instant> getOptionalInstant(@DeviceConfigKey String key) {
		String value = DeviceConfig.getProperty(NAMESPACE_SYSTEM_TIME, key);
		if (value == null) {
		return Optional.empty();
		}

		try {
		long millis = Long.parseLong(value);
		return Optional.of(Instant.ofEpochMilli(millis));
		} catch (DateTimeException \| NumberFormatException e) {
		return Optional.empty();
		}
		}

		/**
		* Returns an optional boolean value from {@link DeviceConfig} from the system_time
		* namespace, returns {@link Optional#empty()} if there is no explicit value set.

services/core/java/com/android/server/timedetector/ServiceConfigAccessor.java

+5 −1

Original line number	Diff line number	Diff line
		@@ -15,6 +15,7 @@
		*/
		package com.android.server.timedetector;

		import static com.android.server.timedetector.ServerFlags.KEY_TIME_DETECTOR_LOWER_BOUND_MILLIS_OVERRIDE;
		import static com.android.server.timedetector.ServerFlags.KEY_TIME_DETECTOR_ORIGIN_PRIORITIES_OVERRIDE;
		import static com.android.server.timedetector.TimeDetectorStrategy.ORIGIN_NETWORK;
		import static com.android.server.timedetector.TimeDetectorStrategy.ORIGIN_TELEPHONY;
		@@ -65,6 +66,7 @@ final class ServiceConfigAccessor {

		private static final Set<String> SERVER_FLAGS_KEYS_TO_WATCH = Collections.unmodifiableSet(
		new ArraySet<>(new String[] {
		KEY_TIME_DETECTOR_LOWER_BOUND_MILLIS_OVERRIDE,
		KEY_TIME_DETECTOR_ORIGIN_PRIORITIES_OVERRIDE,
		}));

		@@ -137,8 +139,10 @@ final class ServiceConfigAccessor {
		return mSystemClockUpdateThresholdMillis;
		}

		@NonNull
		Instant autoTimeLowerBound() {
		return TIME_LOWER_BOUND_DEFAULT;
		return mServerFlags.getOptionalInstant(KEY_TIME_DETECTOR_LOWER_BOUND_MILLIS_OVERRIDE)
		.orElse(TIME_LOWER_BOUND_DEFAULT);
		}

		/**

services/core/java/com/android/server/timedetector/TimeDetectorShellCommand.java

+4 −0

Original line number	Diff line number	Diff line
		@@ -18,6 +18,7 @@ package com.android.server.timedetector;
		import static android.app.timedetector.TimeDetector.SHELL_COMMAND_IS_AUTO_DETECTION_ENABLED;
		import static android.provider.DeviceConfig.NAMESPACE_SYSTEM_TIME;

		import static com.android.server.timedetector.ServerFlags.KEY_TIME_DETECTOR_LOWER_BOUND_MILLIS_OVERRIDE;
		import static com.android.server.timedetector.ServerFlags.KEY_TIME_DETECTOR_ORIGIN_PRIORITIES_OVERRIDE;

		import android.os.ShellCommand;
		@@ -68,6 +69,9 @@ class TimeDetectorShellCommand extends ShellCommand {
		pw.println();
		pw.printf("This service is also affected by the following device_config flags in the"
		+ " %s namespace:\n", NAMESPACE_SYSTEM_TIME);
		pw.printf(" %s - the lower bound used to validate time suggestions when they are"
		+ " received.\n", KEY_TIME_DETECTOR_LOWER_BOUND_MILLIS_OVERRIDE);
		pw.println(" Specified in milliseconds since the start of the Unix epoch.");
		pw.printf(" %s - [default=null], a comma separated list of origins. See"
		+ " TimeDetectorStrategy for details\n",
		KEY_TIME_DETECTOR_ORIGIN_PRIORITIES_OVERRIDE);

services/core/java/com/android/server/timedetector/TimeDetectorStrategyImpl.java

+2 −2

Original line number	Diff line number	Diff line
		@@ -325,9 +325,9 @@ public final class TimeDetectorStrategyImpl implements TimeDetectorStrategy {
		ipw.println("mEnvironment.systemClockMillis()=" + mEnvironment.systemClockMillis());
		ipw.println("mEnvironment.systemClockUpdateThresholdMillis()="
		+ mEnvironment.systemClockUpdateThresholdMillis());
		Instant autoTimeLowerBound = mEnvironment.autoTimeLowerBound();
		ipw.printf("mEnvironment.autoTimeLowerBound()=%s(%s)\n",
		mEnvironment.autoTimeLowerBound(),
		mEnvironment.autoTimeLowerBound().toEpochMilli());
		autoTimeLowerBound, autoTimeLowerBound.toEpochMilli());
		String priorities =
		Arrays.stream(mEnvironment.autoOriginPriorities())
		.mapToObj(TimeDetectorStrategy::originToString)