| /* |
| * Copyright (C) 2017 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.content.pm.PackageManagerInternal; |
| import android.content.pm.PackageManagerInternal.PackageListObserver; |
| |
| import com.android.server.LocalServices; |
| |
| import java.util.List; |
| |
| /** |
| * All of the package name installed on the system. |
| * <p>A self observable list that automatically removes the listener when it goes out of scope. |
| * |
| * @hide Only for use within the system server. |
| */ |
| public class PackageList implements PackageListObserver, AutoCloseable { |
| private final PackageListObserver mWrappedObserver; |
| private final List<String> mPackageNames; |
| |
| /** |
| * Create a new object. |
| * <p>Ownership of the given {@link List} transfers to this object and should not |
| * be modified by the caller. |
| */ |
| public PackageList(@NonNull List<String> packageNames, @Nullable PackageListObserver observer) { |
| mPackageNames = packageNames; |
| mWrappedObserver = observer; |
| } |
| |
| @Override |
| public void onPackageAdded(String packageName, int uid) { |
| if (mWrappedObserver != null) { |
| mWrappedObserver.onPackageAdded(packageName, uid); |
| } |
| } |
| |
| @Override |
| public void onPackageChanged(String packageName, int uid) { |
| if (mWrappedObserver != null) { |
| mWrappedObserver.onPackageChanged(packageName, uid); |
| } |
| } |
| |
| @Override |
| public void onPackageRemoved(String packageName, int uid) { |
| if (mWrappedObserver != null) { |
| mWrappedObserver.onPackageRemoved(packageName, uid); |
| } |
| } |
| |
| @Override |
| public void close() throws Exception { |
| LocalServices.getService(PackageManagerInternal.class).removePackageListObserver(this); |
| } |
| |
| /** |
| * Returns the names of packages installed on the system. |
| * <p>The list is a copy-in-time and the actual set of installed packages may differ. Real |
| * time updates to the package list are sent via the {@link PackageListObserver} callback. |
| */ |
| public @NonNull List<String> getPackageNames() { |
| return mPackageNames; |
| } |
| } |