[automerge] Revert "Revert "[AppsFilter] read-only interface for snapshots"" 2p: 3def2802

 */

package android.util;

import android.annotation.NonNull;

/**

 * A sparse array of ArraySets, which is suitable to hold userid->packages association.

 *

 * @hide

 */

public class SparseSetArray<T> {

    private final SparseArray<ArraySet<T>> mData = new SparseArray<>();

    private final SparseArray<ArraySet<T>> mData;

    public SparseSetArray() {

        mData = new SparseArray<>();

    }

    /**

     * Copy constructor

     */

    public SparseSetArray(@NonNull SparseSetArray<T> src) {

        final int arraySize = src.size();

        mData = new SparseArray<>(arraySize);

        for (int i = 0; i < arraySize; i++) {

            final int key = src.keyAt(i);

            final ArraySet<T> set = src.get(key);

            final int setSize = set.size();

            for (int j = 0; j < setSize; j++) {

                add(key, set.valueAt(j));

            }

        }

    }

    /**

/*

 * Copyright (C) 2022 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.server.pm;

import android.annotation.NonNull;

import android.annotation.Nullable;

import android.os.Process;

import android.util.ArrayMap;

import android.util.SparseArray;

import com.android.internal.util.function.QuadFunction;

import com.android.server.pm.parsing.pkg.AndroidPackage;

import com.android.server.pm.pkg.PackageStateInternal;

import java.io.PrintWriter;

/**

 * Read-only interface used by computer and snapshots to query the visibility of packages

 */

public interface AppsFilterSnapshot {

    /**

     * Fetches all app Ids that a given setting is currently visible to, per provided user. This

     * only includes UIDs >= {@link Process#FIRST_APPLICATION_UID} as all other UIDs can already see

     * all applications.

     *

     * If the setting is visible to all UIDs, null is returned. If an app is not visible to any

     * applications, the int array will be empty.

     *

     * @param users            the set of users that should be evaluated for this calculation

     * @param existingSettings the set of all package settings that currently exist on device

     * @return a SparseArray mapping userIds to a sorted int array of appIds that may view the

     * provided setting or null if the app is visible to all and no allow list should be

     * applied.

     */

    SparseArray<int[]> getVisibilityAllowList(PackageStateInternal setting, int[] users,

            ArrayMap<String, ? extends PackageStateInternal> existingSettings);

    /**

     * Returns true if the calling package should not be able to see the target package, false if no

     * filtering should be done.

     *

     * @param callingUid       the uid of the caller attempting to access a package

     * @param callingSetting   the setting attempting to access a package or null if it could not be

     *                         found

     * @param targetPkgSetting the package being accessed

     * @param userId           the user in which this access is being attempted

     */

    boolean shouldFilterApplication(int callingUid, @Nullable Object callingSetting,

            PackageStateInternal targetPkgSetting, int userId);

    /**

     * Returns whether the querying package is allowed to see the target package.

     *

     * @param querying        the querying package

     * @param potentialTarget the package name of the target package

     */

    boolean canQueryPackage(@NonNull AndroidPackage querying, String potentialTarget);

    /**

     * Dump the packages that are queryable by the querying package.

     *

     * @param pw                the output print writer

     * @param filteringAppId    the querying package's app ID

     * @param dumpState         the state of the dumping

     * @param users             the users for which the packages are installed

     * @param getPackagesForUid the function that produces the package names for given uids

     */

    void dumpQueries(PrintWriter pw, @Nullable Integer filteringAppId, DumpState dumpState,

            int[] users,

            QuadFunction<Integer, Integer, Integer, Boolean, String[]> getPackagesForUid);

}

    private final ResolveInfo mInstantAppInstallerInfo;

    private final InstantAppRegistry mInstantAppRegistry;

    private final ApplicationInfo mLocalAndroidApplication;

    private final AppsFilter mAppsFilter;

    private final AppsFilterSnapshot mAppsFilter;

    private final WatchedArrayMap<String, Integer> mFrozenPackages;

    // Immutable service attribute

    }

    @Watched

    final AppsFilter mAppsFilter;

    final AppsFilterImpl mAppsFilter;

    final PackageParser2.Callback mPackageParserCallback;

        public final InstantAppRegistry instantAppRegistry;

        public final ApplicationInfo androidApplication;

        public final String appPredictionServicePackage;

        public final AppsFilter appsFilter;

        public final AppsFilterSnapshot appsFilter;

        public final ComponentResolverApi componentResolver;

        public final PackageManagerService service;

        public final WatchedArrayMap<String, Integer> frozenPackages;

                        RuntimePermissionsPersistence.createInstance(),

                        i.getPermissionManagerServiceInternal(),

                        domainVerificationService, lock),

                (i, pm) -> AppsFilter.create(i, i.getLocalService(PackageManagerInternal.class)),

                (i, pm) -> AppsFilterImpl.create(i,

                        i.getLocalService(PackageManagerInternal.class)),

                (i, pm) -> (PlatformCompat) ServiceManager.getService("platform_compat"),

                (i, pm) -> SystemConfig.getInstance(),

                (i, pm) -> new PackageDexOptimizer(i.getInstaller(), i.getInstallLock(),