| // |
| // Copyright 2019 gRPC authors. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| // |
| |
| #ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_XDS_XDS_BOOTSTRAP_H |
| #define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_XDS_XDS_BOOTSTRAP_H |
| |
| #include <grpc/support/port_platform.h> |
| |
| #include <memory> |
| #include <string> |
| #include <vector> |
| |
| #include "absl/container/inlined_vector.h" |
| |
| #include <grpc/impl/codegen/slice.h> |
| |
| #include "src/core/lib/gprpp/map.h" |
| #include "src/core/lib/gprpp/memory.h" |
| #include "src/core/lib/iomgr/error.h" |
| #include "src/core/lib/json/json.h" |
| |
| namespace grpc_core { |
| |
| class XdsClient; |
| |
| class XdsBootstrap { |
| public: |
| struct Node { |
| std::string id; |
| std::string cluster; |
| std::string locality_region; |
| std::string locality_zone; |
| std::string locality_subzone; |
| Json metadata; |
| }; |
| |
| struct ChannelCreds { |
| std::string type; |
| Json config; |
| }; |
| |
| struct XdsServer { |
| std::string server_uri; |
| absl::InlinedVector<ChannelCreds, 1> channel_creds; |
| }; |
| |
| // If *error is not GRPC_ERROR_NONE after returning, then there was an |
| // error reading the file. |
| static std::unique_ptr<XdsBootstrap> ReadFromFile(XdsClient* client, |
| TraceFlag* tracer, |
| grpc_error** error); |
| |
| // Do not instantiate directly -- use ReadFromFile() above instead. |
| XdsBootstrap(Json json, grpc_error** error); |
| |
| // TODO(roth): We currently support only one server. Fix this when we |
| // add support for fallback for the xds channel. |
| const XdsServer& server() const { return servers_[0]; } |
| const Node* node() const { return node_.get(); } |
| |
| private: |
| grpc_error* ParseXdsServerList(Json* json); |
| grpc_error* ParseXdsServer(Json* json, size_t idx); |
| grpc_error* ParseChannelCredsArray(Json* json, XdsServer* server); |
| grpc_error* ParseChannelCreds(Json* json, size_t idx, XdsServer* server); |
| grpc_error* ParseNode(Json* json); |
| grpc_error* ParseLocality(Json* json); |
| |
| absl::InlinedVector<XdsServer, 1> servers_; |
| std::unique_ptr<Node> node_; |
| }; |
| |
| } // namespace grpc_core |
| |
| #endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_XDS_XDS_BOOTSTRAP_H */ |