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 com.android.role.controller.behavior.v33;
18 
19 import android.content.Context;
20 import android.os.UserHandle;
21 import android.util.Log;
22 
23 import androidx.annotation.NonNull;
24 
25 import com.android.role.controller.model.Role;
26 import com.android.role.controller.model.RoleBehavior;
27 
28 import java.util.Collections;
29 import java.util.List;
30 
31 /**
32  * Class for behavior of the Document Manager role.
33  */
34 public class DocumentManagerRoleBehavior implements RoleBehavior {
35     private static final String TAG = "DocumentManagerRoleBehavior";
36 
37     @NonNull
38     @Override
getDefaultHoldersAsUser(@onNull Role role, @NonNull UserHandle user, @NonNull Context context)39     public List<String> getDefaultHoldersAsUser(@NonNull Role role, @NonNull UserHandle user,
40             @NonNull Context context) {
41         List<String> qualifyingPackageNames = role.getQualifyingPackagesAsUser(user, context);
42         if (qualifyingPackageNames.size() == 1) {
43             return qualifyingPackageNames;
44         } else {
45             Log.e(TAG, "There should be exactly one documenter; found "
46                     + qualifyingPackageNames.size() + ": matches=" + qualifyingPackageNames);
47             return Collections.emptyList();
48         }
49     }
50 }
51