78 lines
2.9 KiB
Java
78 lines
2.9 KiB
Java
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/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.internal.os;
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import android.app.AppGlobals;
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import android.content.pm.PackageInfo;
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import android.content.pm.PackageManager;
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import android.os.RemoteException;
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import android.os.UserHandle;
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import android.util.SparseArray;
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import com.android.internal.annotations.VisibleForTesting;
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import java.util.List;
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/** Maps AppIds to their package names. */
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public final class AppIdToPackageMap {
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private final SparseArray<String> mAppIdToPackageMap;
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@VisibleForTesting
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public AppIdToPackageMap(SparseArray<String> appIdToPackageMap) {
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mAppIdToPackageMap = appIdToPackageMap;
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}
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/** Creates a new {@link AppIdToPackageMap} for currently installed packages. */
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public static AppIdToPackageMap getSnapshot() {
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List<PackageInfo> packages;
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try {
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packages = AppGlobals.getPackageManager()
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.getInstalledPackages(PackageManager.MATCH_UNINSTALLED_PACKAGES
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| PackageManager.MATCH_DIRECT_BOOT_UNAWARE
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| PackageManager.MATCH_DIRECT_BOOT_AWARE,
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UserHandle.USER_SYSTEM).getList();
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} catch (RemoteException e) {
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throw e.rethrowFromSystemServer();
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}
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final SparseArray<String> map = new SparseArray<>();
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for (PackageInfo pkg : packages) {
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final int uid = pkg.applicationInfo.uid;
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if (pkg.sharedUserId != null && map.indexOfKey(uid) >= 0) {
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// Use sharedUserId string as package name if there are collisions
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map.put(uid, "shared:" + pkg.sharedUserId);
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} else {
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map.put(uid, pkg.packageName);
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}
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}
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return new AppIdToPackageMap(map);
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}
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/** Maps the AppId to a package name. */
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public String mapAppId(int appId) {
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String pkgName = mAppIdToPackageMap.get(appId);
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return pkgName == null ? String.valueOf(appId) : pkgName;
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}
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/** Maps the UID to a package name. */
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public String mapUid(int uid) {
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final int appId = UserHandle.getAppId(uid);
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final String pkgName = mAppIdToPackageMap.get(appId);
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final String uidStr = UserHandle.formatUid(uid);
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return pkgName == null ? uidStr : pkgName + '/' + uidStr;
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}
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}
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