1*14675a02SAndroid Build Coastguard Worker /* 2*14675a02SAndroid Build Coastguard Worker * Copyright 2023 Google LLC 3*14675a02SAndroid Build Coastguard Worker * 4*14675a02SAndroid Build Coastguard Worker * Licensed under the Apache License, Version 2.0 (the "License"); 5*14675a02SAndroid Build Coastguard Worker * you may not use this file except in compliance with the License. 6*14675a02SAndroid Build Coastguard Worker * You may obtain a copy of the License at 7*14675a02SAndroid Build Coastguard Worker * 8*14675a02SAndroid Build Coastguard Worker * http://www.apache.org/licenses/LICENSE-2.0 9*14675a02SAndroid Build Coastguard Worker * 10*14675a02SAndroid Build Coastguard Worker * Unless required by applicable law or agreed to in writing, software 11*14675a02SAndroid Build Coastguard Worker * distributed under the License is distributed on an "AS IS" BASIS, 12*14675a02SAndroid Build Coastguard Worker * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13*14675a02SAndroid Build Coastguard Worker * See the License for the specific language governing permissions and 14*14675a02SAndroid Build Coastguard Worker * limitations under the License. 15*14675a02SAndroid Build Coastguard Worker */ 16*14675a02SAndroid Build Coastguard Worker 17*14675a02SAndroid Build Coastguard Worker #ifndef FCP_AGGREGATION_PROTOCOL_RESOURCE_RESOLVER_H_ 18*14675a02SAndroid Build Coastguard Worker #define FCP_AGGREGATION_PROTOCOL_RESOURCE_RESOLVER_H_ 19*14675a02SAndroid Build Coastguard Worker 20*14675a02SAndroid Build Coastguard Worker #include <memory> 21*14675a02SAndroid Build Coastguard Worker #include <string> 22*14675a02SAndroid Build Coastguard Worker 23*14675a02SAndroid Build Coastguard Worker #include "absl/status/statusor.h" 24*14675a02SAndroid Build Coastguard Worker #include "absl/strings/cord.h" 25*14675a02SAndroid Build Coastguard Worker 26*14675a02SAndroid Build Coastguard Worker namespace fcp::aggregation { 27*14675a02SAndroid Build Coastguard Worker 28*14675a02SAndroid Build Coastguard Worker // Describes an abstract interface for resolving a resource from a given client 29*14675a02SAndroid Build Coastguard Worker // and uri. 30*14675a02SAndroid Build Coastguard Worker class ResourceResolver { 31*14675a02SAndroid Build Coastguard Worker public: 32*14675a02SAndroid Build Coastguard Worker virtual ~ResourceResolver() = default; 33*14675a02SAndroid Build Coastguard Worker 34*14675a02SAndroid Build Coastguard Worker // Retrieves a resource for the given `client_id` and `uri` combination. 35*14675a02SAndroid Build Coastguard Worker // The resource can be accessed exactly once and must be deleted (best-effort) 36*14675a02SAndroid Build Coastguard Worker // after it is returned. 37*14675a02SAndroid Build Coastguard Worker virtual absl::StatusOr<absl::Cord> RetrieveResource( 38*14675a02SAndroid Build Coastguard Worker int64_t client_id, const std::string& uri) = 0; 39*14675a02SAndroid Build Coastguard Worker }; 40*14675a02SAndroid Build Coastguard Worker } // namespace fcp::aggregation 41*14675a02SAndroid Build Coastguard Worker 42*14675a02SAndroid Build Coastguard Worker #endif // FCP_AGGREGATION_PROTOCOL_RESOURCE_RESOLVER_H_ 43