1 /*
2 * Copyright (C) 2023 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 #include "host/commands/cvd/selector/group_selector.h"
18 #include "host/commands/cvd/selector/device_selector_utils.h"
19 #include "host/commands/cvd/selector/selector_constants.h"
20
21 namespace cuttlefish {
22 namespace selector {
23
GetSelector(const cvd_common::Args & selector_args,const Queries & extra_queries,const cvd_common::Envs & envs,const uid_t uid)24 Result<GroupSelector> GroupSelector::GetSelector(
25 const cvd_common::Args& selector_args, const Queries& extra_queries,
26 const cvd_common::Envs& envs, const uid_t uid) {
27 cvd_common::Args selector_args_copied{selector_args};
28 SelectorCommonParser common_parser =
29 CF_EXPECT(SelectorCommonParser::Parse(uid, selector_args_copied, envs));
30 std::stringstream unused_args;
31 unused_args << "{";
32 for (const auto& arg : selector_args_copied) {
33 unused_args << arg << ", ";
34 }
35 std::string unused_arg_list = unused_args.str();
36 if (!selector_args_copied.empty()) {
37 unused_arg_list.pop_back();
38 unused_arg_list.pop_back();
39 }
40 unused_arg_list.append("}");
41 if (!selector_args_copied.empty()) {
42 LOG(ERROR) << "Warning: there are unused selector options. "
43 << unused_arg_list;
44 }
45
46 // search by group and instances
47 // search by HOME if overridden
48 Queries queries;
49 if (IsHomeOverridden(common_parser)) {
50 CF_EXPECT(common_parser.Home());
51 queries.emplace_back(kHomeField, common_parser.Home().value());
52 }
53 if (common_parser.GroupName()) {
54 queries.emplace_back(kGroupNameField, common_parser.GroupName().value());
55 }
56 if (common_parser.PerInstanceNames()) {
57 const auto per_instance_names = common_parser.PerInstanceNames().value();
58 for (const auto& per_instance_name : per_instance_names) {
59 queries.emplace_back(kInstanceNameField, per_instance_name);
60 }
61 }
62
63 for (const auto& extra_query : extra_queries) {
64 queries.push_back(extra_query);
65 }
66
67 GroupSelector group_selector(uid, queries);
68 return group_selector;
69 }
70
IsHomeOverridden(const SelectorCommonParser & common_parser)71 bool GroupSelector::IsHomeOverridden(
72 const SelectorCommonParser& common_parser) {
73 auto home_overridden_result = common_parser.HomeOverridden();
74 if (!home_overridden_result.ok()) {
75 return false;
76 }
77 return *home_overridden_result;
78 }
79
FindGroup(const InstanceDatabase & instance_database)80 Result<LocalInstanceGroup> GroupSelector::FindGroup(
81 const InstanceDatabase& instance_database) {
82 if (queries_.empty()) {
83 auto default_group = CF_EXPECT(FindDefaultGroup(instance_database));
84 return default_group;
85 }
86 auto groups = CF_EXPECT(instance_database.FindGroups(queries_));
87 CF_EXPECT(groups.size() == 1, "groups.size() = " << groups.size());
88 return *(groups.cbegin());
89 }
90
FindDefaultGroup(const InstanceDatabase & instance_database)91 Result<LocalInstanceGroup> GroupSelector::FindDefaultGroup(
92 const InstanceDatabase& instance_database) {
93 auto group = CF_EXPECT(GetDefaultGroup(instance_database, client_uid_));
94 return group;
95 }
96
97 } // namespace selector
98 } // namespace cuttlefish
99