Merge "Add new Flag class. New FlagReaderPlugin." into sc-v2-dev am: d80f48c3bd (ad6520a5) · Commits · e / os / android_frameworks_base

packages/SystemUI/plugin/src/com/android/systemui/flags/Flag.kt

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+52 −0

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		/*
		* Copyright (C) 2021 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 com.android.systemui.flags

		interface Flag<T> {
		val id: Int
		val default: T
		}

		data class BooleanFlag @JvmOverloads constructor(
		override val id: Int,
		override val default: Boolean = false
		) : Flag<Boolean>

		data class StringFlag @JvmOverloads constructor(
		override val id: Int,
		override val default: String = ""
		) : Flag<String>

		data class IntFlag @JvmOverloads constructor(
		override val id: Int,
		override val default: Int = 0
		) : Flag<Int>

		data class LongFlag @JvmOverloads constructor(
		override val id: Int,
		override val default: Long = 0
		) : Flag<Long>

		data class FloatFlag @JvmOverloads constructor(
		override val id: Int,
		override val default: Float = 0f
		) : Flag<Float>

		data class DoubleFlag @JvmOverloads constructor(
		override val id: Int,
		override val default: Double = 0.0
		) : Flag<Double>
		No newline at end of file

packages/SystemUI/plugin/src/com/android/systemui/flags/Flags.java

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+23 −0

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		/*
		* Copyright (C) 2021 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 com.android.systemui.flags;

		/**
		* List of {@link Flag} objects for use in SystemUI.
		*/
		public class Flags {
		}

packages/SystemUI/plugin/src/com/android/systemui/plugins/FlagReaderPlugin.java

0 → 100644

+59 −0

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		/*
		* Copyright (C) 2021 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 com.android.systemui.plugins;

		import com.android.systemui.plugins.annotations.ProvidesInterface;


		/**
		* Plugin for loading flag values from an alternate source of truth.
		*/
		@ProvidesInterface(action = FlagReaderPlugin.ACTION, version = FlagReaderPlugin.VERSION)
		public interface FlagReaderPlugin extends Plugin {
		int VERSION = 1;
		String ACTION = "com.android.systemui.flags.FLAG_READER_PLUGIN";

		/** Returns a boolean value for the given flag. */
		default boolean isEnabled(int id, boolean def) {
		return def;
		}

		/** Returns a string value for the given flag id. */
		default String getValue(int id, String def) {
		return def;
		}

		/** Returns a int value for the given flag. */
		default int getValue(int id, int def) {
		return def;
		}

		/** Returns a long value for the given flag. */
		default long getValue(int id, long def) {
		return def;
		}

		/** Returns a float value for the given flag. */
		default float getValue(int id, float def) {
		return def;
		}

		/** Returns a double value for the given flag. */
		default double getValue(int id, double def) {
		return def;
		}
		}

packages/SystemUI/src/com/android/systemui/flags/FeatureFlagReader.java

+46 −0

Original line number	Diff line number	Diff line
		@@ -16,6 +16,7 @@

		package com.android.systemui.flags;

		import android.content.Context;
		import android.content.res.Resources;
		import android.util.SparseArray;

		@@ -25,6 +26,9 @@ import androidx.annotation.Nullable;
		import com.android.systemui.R;
		import com.android.systemui.dagger.SysUISingleton;
		import com.android.systemui.dagger.qualifiers.Main;
		import com.android.systemui.plugins.FlagReaderPlugin;
		import com.android.systemui.plugins.PluginListener;
		import com.android.systemui.shared.plugins.PluginManager;
		import com.android.systemui.util.wrapper.BuildInfo;

		import javax.inject.Inject;
		@@ -54,18 +58,60 @@ import javax.inject.Inject;
		public class FeatureFlagReader {
		private final Resources mResources;
		private final boolean mAreFlagsOverrideable;
		private final PluginManager mPluginManager;
		private final SystemPropertiesHelper mSystemPropertiesHelper;
		private final SparseArray<CachedFlag> mCachedFlags = new SparseArray<>();

		private FlagReaderPlugin mPlugin = new FlagReaderPlugin(){};

		@Inject
		public FeatureFlagReader(
		@Main Resources resources,
		BuildInfo build,
		PluginManager pluginManager,
		SystemPropertiesHelper systemPropertiesHelper) {
		mResources = resources;
		mPluginManager = pluginManager;
		mSystemPropertiesHelper = systemPropertiesHelper;
		mAreFlagsOverrideable =
		build.isDebuggable() && mResources.getBoolean(R.bool.are_flags_overrideable);

		mPluginManager.addPluginListener(mPluginListener, FlagReaderPlugin.class);
		}

		private final PluginListener<FlagReaderPlugin> mPluginListener =
		new PluginListener<FlagReaderPlugin>() {
		public void onPluginConnected(FlagReaderPlugin plugin, Context context) {
		mPlugin = plugin;
		}

		public void onPluginDisconnected(FlagReaderPlugin plugin) {
		mPlugin = new FlagReaderPlugin() {};
		}
		};

		boolean isEnabled(BooleanFlag flag) {
		return mPlugin.isEnabled(flag.getId(), flag.getDefault());
		}

		String getValue(StringFlag flag) {
		return mPlugin.getValue(flag.getId(), flag.getDefault());
		}

		int getValue(IntFlag flag) {
		return mPlugin.getValue(flag.getId(), flag.getDefault());
		}

		long getValue(LongFlag flag) {
		return mPlugin.getValue(flag.getId(), flag.getDefault());
		}

		float getValue(FloatFlag flag) {
		return mPlugin.getValue(flag.getId(), flag.getDefault());
		}

		double getValue(DoubleFlag flag) {
		return mPlugin.getValue(flag.getId(), flag.getDefault());
		}

		/**

packages/SystemUI/src/com/android/systemui/flags/FeatureFlags.java

+79 −0

Original line number	Diff line number	Diff line
		@@ -22,6 +22,10 @@ import android.util.FeatureFlagUtils;
		import com.android.systemui.R;
		import com.android.systemui.dagger.SysUISingleton;

		import java.lang.reflect.Field;
		import java.util.HashMap;
		import java.util.Map;

		import javax.inject.Inject;

		/**
		@@ -40,6 +44,54 @@ public class FeatureFlags {
		mContext = context;
		}

		/**
		* @param flag The {@link BooleanFlag} of interest.
		* @return The value of the flag.
		*/
		public boolean isEnabled(BooleanFlag flag) {
		return mFlagReader.isEnabled(flag);
		}

		/**
		* @param flag The {@link StringFlag} of interest.
		* @return The value of the flag.
		*/
		public String getValue(StringFlag flag) {
		return mFlagReader.getValue(flag);
		}

		/**
		* @param flag The {@link IntFlag} of interest.
		* @return The value of the flag.
		*/
		public int getValue(IntFlag flag) {
		return mFlagReader.getValue(flag);
		}

		/**
		* @param flag The {@link LongFlag} of interest.
		* @return The value of the flag.
		*/
		public long getValue(LongFlag flag) {
		return mFlagReader.getValue(flag);
		}

		/**
		* @param flag The {@link FloatFlag} of interest.
		* @return The value of the flag.
		*/
		public float getValue(FloatFlag flag) {
		return mFlagReader.getValue(flag);
		}

		/**
		* @param flag The {@link DoubleFlag} of interest.
		* @return The value of the flag.
		*/
		public double getValue(DoubleFlag flag) {
		return mFlagReader.getValue(flag);
		}

		public boolean isNewNotifPipelineEnabled() {
		return mFlagReader.isEnabled(R.bool.flag_notification_pipeline2);
		}
		@@ -107,4 +159,31 @@ public class FeatureFlags {
		public static boolean isProviderModelSettingEnabled(Context context) {
		return FeatureFlagUtils.isEnabled(context, FeatureFlagUtils.SETTINGS_PROVIDER_MODEL);
		}

		private Map<Integer, Flag<?>> collectFlags() {
		Map<Integer, Flag<?>> flags = new HashMap<>();

		Field[] fields = this.getClass().getFields();

		for (Field field : fields) {
		Class<?> t = field.getType();
		if (Flag.class.isAssignableFrom(t)) {
		try {
		//flags.add((Flag<?>) field.get(null));
		Flag flag = (Flag) field.get(null);
		flags.put(flag.getId(), flag);
		} catch (IllegalAccessException e) {
		// no-op
		}
		}
		}

		return flags;
		}

		/** Simple interface for beinga alerted when a specific flag changes value. */
		public interface Listener {
		/** */
		void onFlagChanged(Flag<?> flag);
		}
		}