1 /* 2 * Copyright (C) 2021 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.app.admin; 18 19 import android.annotation.NonNull; 20 import android.os.Parcel; 21 import android.os.Parcelable; 22 import android.util.ArrayMap; 23 import android.util.ArraySet; 24 25 import java.util.Map; 26 import java.util.Set; 27 28 /** 29 * Class for marshalling keypair grantees for a given KeyChain key via Binder. 30 * 31 * @hide 32 */ 33 public class ParcelableGranteeMap implements Parcelable { 34 35 private final Map<Integer, Set<String>> mPackagesByUid; 36 37 @Override describeContents()38 public int describeContents() { 39 return 0; 40 } 41 42 @Override writeToParcel(Parcel dest, int flags)43 public void writeToParcel(Parcel dest, int flags) { 44 dest.writeInt(mPackagesByUid.size()); 45 for (final Map.Entry<Integer, Set<String>> uidEntry : mPackagesByUid.entrySet()) { 46 dest.writeInt(uidEntry.getKey()); 47 dest.writeStringArray(uidEntry.getValue().toArray(new String[0])); 48 } 49 } 50 51 public static final @NonNull Parcelable.Creator<ParcelableGranteeMap> CREATOR = 52 new Parcelable.Creator<ParcelableGranteeMap>() { 53 @Override 54 public ParcelableGranteeMap createFromParcel(Parcel source) { 55 final Map<Integer, Set<String>> packagesByUid = new ArrayMap<>(); 56 final int numUids = source.readInt(); 57 for (int i = 0; i < numUids; i++) { 58 final int uid = source.readInt(); 59 final String[] pkgs = source.readStringArray(); 60 packagesByUid.put(uid, new ArraySet<>(pkgs)); 61 } 62 return new ParcelableGranteeMap(packagesByUid); 63 } 64 65 @Override 66 public ParcelableGranteeMap[] newArray(int size) { 67 return new ParcelableGranteeMap[size]; 68 } 69 }; 70 71 /** 72 * Creates an instance holding a reference (not a copy) to the given map. 73 */ ParcelableGranteeMap(@onNull Map<Integer, Set<String>> packagesByUid)74 public ParcelableGranteeMap(@NonNull Map<Integer, Set<String>> packagesByUid) { 75 mPackagesByUid = packagesByUid; 76 } 77 78 /** 79 * Returns a reference (not a copy) to the stored map. 80 */ 81 @NonNull getPackagesByUid()82 public Map<Integer, Set<String>> getPackagesByUid() { 83 return mPackagesByUid; 84 } 85 } 86