1/*
2 * Copyright (C) 2011 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
17package com.android.server.pm;
18
19import java.util.HashSet;
20
21/**
22 * Settings data for a particular shared user ID we know about.
23 */
24final class SharedUserSetting extends GrantedPermissions {
25    final String name;
26
27    int userId;
28
29    // flags that are associated with this uid, regardless of any package flags
30    int uidFlags;
31
32    final HashSet<PackageSetting> packages = new HashSet<PackageSetting>();
33
34    final PackageSignatures signatures = new PackageSignatures();
35
36    SharedUserSetting(String _name, int _pkgFlags) {
37        super(_pkgFlags);
38        uidFlags =  _pkgFlags;
39        name = _name;
40    }
41
42    @Override
43    public String toString() {
44        return "SharedUserSetting{" + Integer.toHexString(System.identityHashCode(this)) + " "
45                + name + "/" + userId + "}";
46    }
47
48    void removePackage(PackageSetting packageSetting) {
49        if (packages.remove(packageSetting)) {
50            // recalculate the pkgFlags for this shared user if needed
51            if ((this.pkgFlags & packageSetting.pkgFlags) != 0) {
52                int aggregatedFlags = uidFlags;
53                for (PackageSetting ps : packages) {
54                    aggregatedFlags |= ps.pkgFlags;
55                }
56                setFlags(aggregatedFlags);
57            }
58        }
59    }
60
61    void addPackage(PackageSetting packageSetting) {
62        if (packages.add(packageSetting)) {
63            setFlags(this.pkgFlags | packageSetting.pkgFlags);
64        }
65    }
66}
67