1 // 2 // 3 // Copyright 2017 gRPC authors. 4 // 5 // Licensed under the Apache License, Version 2.0 (the "License"); 6 // you may not use this file except in compliance with the License. 7 // You may obtain a copy of the License at 8 // 9 // http://www.apache.org/licenses/LICENSE-2.0 10 // 11 // Unless required by applicable law or agreed to in writing, software 12 // distributed under the License is distributed on an "AS IS" BASIS, 13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 // See the License for the specific language governing permissions and 15 // limitations under the License. 16 // 17 // 18 19 #ifndef GRPC_SRC_CORE_HANDSHAKER_PROXY_MAPPER_REGISTRY_H 20 #define GRPC_SRC_CORE_HANDSHAKER_PROXY_MAPPER_REGISTRY_H 21 22 #include <grpc/support/port_platform.h> 23 24 #include <algorithm> 25 #include <memory> 26 #include <string> 27 #include <vector> 28 29 #include "absl/strings/string_view.h" 30 #include "absl/types/optional.h" 31 #include "src/core/handshaker/proxy_mapper.h" 32 #include "src/core/lib/channel/channel_args.h" 33 #include "src/core/lib/iomgr/resolved_address.h" 34 35 namespace grpc_core { 36 37 class ProxyMapperRegistry { 38 using ProxyMapperList = std::vector<std::unique_ptr<ProxyMapperInterface>>; 39 40 public: 41 class Builder { 42 public: 43 /// Registers a new proxy mapper. 44 /// If \a at_start is true, the new mapper will be at the beginning of 45 /// the list. Otherwise, it will be added to the end. 46 void Register(bool at_start, std::unique_ptr<ProxyMapperInterface> mapper); 47 48 ProxyMapperRegistry Build(); 49 50 private: 51 ProxyMapperList mappers_; 52 }; 53 54 ~ProxyMapperRegistry() = default; 55 ProxyMapperRegistry(const ProxyMapperRegistry&) = delete; 56 ProxyMapperRegistry& operator=(const ProxyMapperRegistry&) = delete; 57 ProxyMapperRegistry(ProxyMapperRegistry&&) = default; 58 ProxyMapperRegistry& operator=(ProxyMapperRegistry&&) = default; 59 60 absl::optional<std::string> MapName(absl::string_view server_uri, 61 ChannelArgs* args) const; 62 63 absl::optional<grpc_resolved_address> MapAddress( 64 const grpc_resolved_address& address, ChannelArgs* args) const; 65 66 private: 67 ProxyMapperRegistry() = default; 68 69 ProxyMapperList mappers_; 70 }; 71 72 } // namespace grpc_core 73 74 #endif // GRPC_SRC_CORE_HANDSHAKER_PROXY_MAPPER_REGISTRY_H 75