Add extra compat change overriding methods. (ea997f22) · Commits · e / os / android_frameworks_base

core/java/com/android/internal/compat/CompatibilityChangeConfig.aidl

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		/*
		* 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 com.android.internal.compat;

		parcelable CompatibilityChangeConfig;

core/java/com/android/internal/compat/CompatibilityChangeConfig.java

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		/*
		* 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 com.android.internal.compat;


		import android.compat.Compatibility.ChangeConfig;
		import android.os.Parcel;
		import android.os.Parcelable;

		import java.util.HashSet;
		import java.util.Set;

		/**
		* Parcelable containing compat config overrides for a given application.
		* @hide
		*/
		public final class CompatibilityChangeConfig implements Parcelable {
		private final ChangeConfig mChangeConfig;

		public CompatibilityChangeConfig(ChangeConfig changeConfig) {
		mChangeConfig = changeConfig;
		}

		/**
		* Changes forced to be enabled.
		*/
		public Set<Long> enabledChanges() {
		return mChangeConfig.forceEnabledSet();
		}

		/**
		* Changes forced to be disabled.
		*/
		public Set<Long> disabledChanges() {
		return mChangeConfig.forceDisabledSet();
		}

		private CompatibilityChangeConfig(Parcel in) {
		long[] enabledArray = in.createLongArray();
		long[] disabledArray = in.createLongArray();
		Set<Long> enabled = toLongSet(enabledArray);
		Set<Long> disabled = toLongSet(disabledArray);
		mChangeConfig = new ChangeConfig(enabled, disabled);
		}

		private static Set<Long> toLongSet(long[] values) {
		Set<Long> ret = new HashSet<>();
		for (long value: values) {
		ret.add(value);
		}
		return ret;
		}

		@Override
		public int describeContents() {
		return 0;
		}

		@Override
		public void writeToParcel(Parcel dest, int flags) {
		long[] enabled = mChangeConfig.forceEnabledChangesArray();
		long[] disabled = mChangeConfig.forceDisabledChangesArray();

		dest.writeLongArray(enabled);
		dest.writeLongArray(disabled);
		}

		public static final Parcelable.Creator<CompatibilityChangeConfig> CREATOR =
		new Parcelable.Creator<CompatibilityChangeConfig>() {

		@Override
		public CompatibilityChangeConfig createFromParcel(Parcel in) {
		return new CompatibilityChangeConfig(in);
		}

		@Override
		public CompatibilityChangeConfig[] newArray(int size) {
		return new CompatibilityChangeConfig[size];
		}
		};
		}

core/java/com/android/internal/compat/IPlatformCompat.aidl

+20 −1

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		@@ -18,6 +18,8 @@ package com.android.internal.compat;

		import android.content.pm.ApplicationInfo;

		parcelable CompatibilityChangeConfig;

		/**
		* Platform private API for talking with the PlatformCompat service.
		*
		@@ -125,4 +127,21 @@ interface IPlatformCompat
		* @return {@code true} if the change is enabled for the current app.
		*/
		boolean isChangeEnabledByUid(long changeId, int uid);

		/**
		* Add overrides to compatibility changes.
		*
		* @param overrides Parcelable containing the compat change overrides to be applied.
		* @param packageName The package name of the app whose changes will be overridden.
		*
		*/
		void setOverrides(in CompatibilityChangeConfig overrides, in String packageName);

		/**
		* Revert overrides to compatibility changes.
		*
		* @param packageName The package name of the app whose overrides will be cleared.
		*
		*/
		void clearOverrides(in String packageName);
		}

services/core/java/com/android/server/compat/CompatConfig.java

+38 −0

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		@@ -25,6 +25,7 @@ import android.util.Slog;

		import com.android.internal.annotations.GuardedBy;
		import com.android.internal.annotations.VisibleForTesting;
		import com.android.internal.compat.CompatibilityChangeConfig;
		import com.android.server.compat.config.Change;
		import com.android.server.compat.config.XmlParser;

		@@ -186,6 +187,43 @@ public final class CompatConfig {
		}
		return overrideExists;
		}
		/**
		* Overrides the enabled state for a given change and app. This method is intended to be used
		* only for debugging purposes.
		*
		* <p>Note, package overrides are not persistent and will be lost on system or runtime restart.
		*
		* @param overrides list of overrides to default changes config.
		* @param packageName app for which the overrides will be applied.
		*/
		public void addOverrides(
		CompatibilityChangeConfig overrides, String packageName) {
		synchronized (mChanges) {
		for (Long changeId: overrides.enabledChanges()) {
		addOverride(changeId, packageName, true);
		}
		for (Long changeId: overrides.disabledChanges()) {
		addOverride(changeId, packageName, false);
		}
		}
		}

		/**
		* Removes all overrides previously added via {@link #addOverride(long, String, boolean)} or
		* {@link #addAppOverrides(CompatibilityChangeConfig, String)} for a certain package.
		*
		* <p>This restores the default behaviour for the given change and app, once any app
		* processes have been restarted.
		*
		* @param packageName The package for which the overrides should be purged.
		*/
		public void removePackageOverrides(String packageName) {
		synchronized (mChanges) {
		for (int i = 0; i < mChanges.size(); ++i) {
		mChanges.valueAt(i).removePackageOverride(packageName);
		}
		}
		}

		/**
		* Dumps the current list of compatibility config information.

services/core/java/com/android/server/compat/PlatformCompat.java

+12 −0

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		@@ -23,6 +23,7 @@ import android.util.Slog;
		import android.util.StatsLog;

		import com.android.internal.compat.ChangeReporter;
		import com.android.internal.compat.CompatibilityChangeConfig;
		import com.android.internal.compat.IPlatformCompat;
		import com.android.internal.util.DumpUtils;

		@@ -99,6 +100,17 @@ public class PlatformCompat extends IPlatformCompat.Stub {
		return enabled;
		}

		@Override
		public void setOverrides(CompatibilityChangeConfig overrides, String packageName) {
		CompatConfig.get().addOverrides(overrides, packageName);
		}

		@Override
		public void clearOverrides(String packageName) {
		CompatConfig config = CompatConfig.get();
		config.removePackageOverrides(packageName);
		}

		@Override
		protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
		if (!DumpUtils.checkDumpAndUsageStatsPermission(mContext, "platform_compat", pw)) return;