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- /*
- Copyright (c) 2020 Sogou, Inc.
- 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.
- */
- #include "generator.h"
- bool Generator::init_file_names(const std::string& idl_file, const char *out_dir)
- {
- if (idl_file.size() <= 5)
- return false;
- const char *p;
- if (this->is_thrift)
- {
- p = idl_file.c_str() + idl_file.size() - 7;
- if (strncmp(p, ".thrift", 7) != 0)
- return false;
- }
- else
- {
- p = idl_file.c_str() + idl_file.size() - 6;
- if (strncmp(p, ".proto", 6) != 0)
- return false;
- }
- p = idl_file.c_str() + idl_file.size() - 1;
- while (p > idl_file.c_str())
- {
- if (*p == '/')
- break;
- p--;
- }
- if (*p == '/')
- p++;
- std::string str = p;
- auto pos = str.find(".");
- if (pos == std::string::npos)
- return false;
- this->prefix = str.substr(0, pos);
- str = out_dir;
- if (str[str.length() - 1] != '/')
- str.append("/");
- this->out_dir = str;
- this->srpc_file = str;
- this->srpc_file.append(this->prefix);
- this->srpc_file.append(this->suffix);
- this->srpc_file.append("h");
- this->thrift_type_file = str;
- this->thrift_type_file.append(this->prefix);
- this->thrift_type_file.append(this->thrift_suffix);
- this->thrift_type_file.append("h");
- fprintf(stdout, "[Generator] generate srpc files: %s %s\n",
- this->srpc_file.c_str(),
- this->is_thrift ? this->thrift_type_file.c_str() : "");
- return true;
- }
- bool Generator::generate(struct GeneratorParams& params)
- {
- this->info.input_dir = params.input_dir;
- if (this->parser.parse(params.idl_file, this->info) == false)
- {
- fprintf(stderr, "[Generator Error] parse failed.\n");
- return false;
- }
- if (this->generate_header(this->info, params) == false)
- {
- fprintf(stderr, "[Generator Error] generate failed.\n");
- return false;
- }
- if (params.generate_skeleton == true)
- this->generate_skeleton(this->info.file_name);
- return true;
- }
- bool Generator::generate_header(idl_info& cur_info, struct GeneratorParams& params)
- {
- for (auto& sub_info : cur_info.include_list)
- {
- fprintf(stdout, "[Generator] auto generate include file [%s]\n",
- sub_info.absolute_file_path.c_str());
- if (!this->generate_header(sub_info, params))
- return false;
- }
- // for protobuf: if no [rpc], don`t need to generate xxx.srpc.h
- if (this->init_file_names(cur_info.absolute_file_path, params.out_dir) == false)
- {
- fprintf(stderr, "[Generator Error] init file name failed. %s %s\n",
- cur_info.absolute_file_path.c_str(), params.out_dir);
- return false;
- }
- // will generate skeleton file only once
- if (this->is_thrift)
- {
- //[prefix].thrift.h
- if (!this->generate_thrift_type_file(cur_info))
- {
- fprintf(stderr, "[Generator Error] generate thrift type file failed.\n");
- return false;
- }
- }
- for (const auto& desc : this->info.desc_list)
- {
- if (desc.block_type == "service")
- {
- //has_service = true;
- if (!this->generate_srpc_file(cur_info)) // [prefix].srpc.h
- {
- fprintf(stderr, "[Generator Error] generate srpc file failed.\n");
- return false;
- }
- break;
- }
- }
- fprintf(stdout, "[Generator Done]\n");
- return true;
- }
- void Generator::generate_skeleton(const std::string& idl_file)
- {
- const char *p;
- if (this->is_thrift)
- {
- p = idl_file.c_str() + idl_file.size() - 7;
- if (strncmp(p, ".thrift", 7) != 0)
- return;
- }
- else
- {
- p = idl_file.c_str() + idl_file.size() - 6;
- if (strncmp(p, ".proto", 6) != 0)
- return;
- }
- p = idl_file.c_str() + idl_file.size() - 1;
- while (p > idl_file.c_str())
- {
- if (*p == '/')
- break;
- p--;
- }
- if (*p == '/')
- p++;
- std::string str = p;
- auto pos = str.find(".");
- if (pos == std::string::npos)
- return;
- std::string idl_file_name = str.substr(0, pos);
- // server.skeleton.cc
- this->generate_server_cpp_file(this->info, idl_file_name);
- // client.skeleton.cc
- this->generate_client_cpp_file(this->info, idl_file_name);
- fprintf(stdout, "[Generator] generate server files: %s, client files: %s\n",
- this->server_cpp_file.c_str(),
- this->client_cpp_file.c_str());
- return;
- }
- void Generator::thrift_replace_include(const idl_info& cur_info, std::vector<rpc_param>& params)
- {
- for (auto& param : params)
- {
- if (param.data_type == srpc::TDT_LIST
- || param.data_type == srpc::TDT_MAP
- || param.data_type == srpc::TDT_SET)
- {
- for (const auto& desc : cur_info.desc_list)
- {
- if (desc.block_type == "enum")
- SGenUtil::replace(param.type_name, desc.block_name, "int32_t");
- }
- for (const auto& sub_info : cur_info.include_list)
- {
- for (const auto& desc : sub_info.desc_list)
- {
- if (desc.block_type == "enum")
- SGenUtil::replace(param.type_name, sub_info.file_name_prefix + desc.block_name, "int32_t");
- }
- }
- }
- auto pos = param.type_name.find('.');
- if (pos != std::string::npos)
- {
- for (const auto& sub_info : cur_info.include_list)
- {
- if (sub_info.package_name.empty())
- continue;
- //printf("????%s %s\n", sub_info.file_name_prefix.c_str(), sub_info.package_name.c_str());
- SGenUtil::replace(param.type_name, sub_info.file_name_prefix,
- "::" + join_package_names(sub_info.package_name) + "::");
- }
- }
- }
- }
- bool Generator::generate_thrift_type_file(idl_info& cur_info)
- {
- if (!this->printer.open(this->thrift_type_file))
- {
- fprintf(stderr, "[Generator Error] can't write to thirft_type_file: %s.\n",
- this->thrift_type_file.c_str());
- return false;
- }
- this->printer.print_thrift_include(cur_info);
- this->printer.print_thrift_struct_declaration(cur_info);
- this->printer.print_thrift_typedef(cur_info);
- for (auto& desc : cur_info.desc_list)
- {
- if (desc.block_type == "service")
- {
- this->printer.print_service_namespace(desc.block_name);
- for (auto& rpc : desc.rpcs)
- {
- this->thrift_replace_include(cur_info, rpc.req_params);
- this->printer.print_rpc_thrift_struct_class(rpc.request_name, rpc.req_params,cur_info);
- this->thrift_replace_include(cur_info, rpc.resp_params);
- this->printer.print_rpc_thrift_struct_class(rpc.response_name, rpc.resp_params,cur_info);
- }
- this->printer.print_service_namespace_end(desc.block_name);
- }
- else if (desc.block_type == "struct" || desc.block_type == "union")
- {
- this->thrift_replace_include(cur_info, desc.st.params);
- this->printer.print_rpc_thrift_struct_class(desc.block_name, desc.st.params,cur_info);
- }
- else if (desc.block_type == "enum")
- {
- this->printer.print_thrift_include_enum(desc.block_name, desc.enum_lines);
- }
- }
- this->printer.print_end(cur_info.package_name);
- this->printer.close();
- return true;
- }
- bool Generator::generate_srpc_file(const idl_info& cur_info)
- {
- if (!this->printer.open(this->srpc_file))
- {
- fprintf(stderr, "[Generator Error] can't write to srpc file: %s.\n",
- this->srpc_file.c_str());
- return false;
- }
- this->printer.print_srpc_include(this->prefix, cur_info.package_name);
- std::vector<std::string> rpc_list;
- std::string package;
- if (this->is_thrift)
- {
- rpc_list.push_back("SRPC");
- rpc_list.push_back("SRPCHttp");
- rpc_list.push_back("Thrift");
- rpc_list.push_back("ThriftHttp");
- }
- else
- {
- rpc_list.push_back("SRPC");
- rpc_list.push_back("SRPCHttp");
- rpc_list.push_back("BRPC");
- rpc_list.push_back("TRPC");
- rpc_list.push_back("TRPCHttp");
- }
- for (const std::string& p : cur_info.package_name)
- {
- package.append(p);
- package.push_back('.');
- }
- for (const auto& desc : cur_info.desc_list)
- {
- if (desc.block_type != "service")
- continue;
- this->printer.print_service_namespace(desc.block_name);
- this->printer.print_server_comment();
- if (this->is_thrift)
- this->printer.print_server_class_thrift(desc.block_name, desc.rpcs);
- else
- this->printer.print_server_class(desc.block_name, desc.rpcs);
- this->printer.print_client_comment();
- for (const auto& rpc : desc.rpcs)
- {
- this->printer.print_client_define_done(rpc.method_name,
- rpc.response_name);
- }
- this->printer.print_empty_line();
- for (const auto& type : rpc_list)
- this->printer.print_client_class(type, desc.block_name, desc.rpcs);
- this->printer.print_implement_comments();
- this->printer.print_server_constructor(package + desc.block_name, desc.rpcs);
- if (this->is_thrift)
- this->printer.print_server_methods_thrift(desc.block_name, desc.rpcs);
- for (const auto& type : rpc_list)
- {
- this->printer.print_client_constructor(type, desc.block_name,
- cur_info.package_name);
- this->printer.print_client_methods(type, desc.block_name, desc.rpcs,
- cur_info.package_name);
- this->printer.print_client_create_task(type, desc.block_name,
- desc.rpcs, cur_info.package_name);
- }
- this->printer.print_service_namespace_end(desc.block_name);
- }
- this->printer.print_end(cur_info.package_name);
- this->printer.close();
- return true;
- }
- bool Generator::generate_server_cpp_file(const idl_info& cur_info,
- const std::string& idl_file_name)
- {
- this->server_cpp_file = this->out_dir;
- this->server_cpp_file.append("server");
- this->server_cpp_file.append(this->is_thrift ? ".thrift_skeleton." : ".pb_skeleton.");
- this->server_cpp_file.append("cc");
- if (this->printer.open(this->server_cpp_file) == false)
- return false;
- this->printer.print_server_file_include(idl_file_name);
- for (const auto& desc : cur_info.desc_list)
- {
- if (desc.block_type != "service")
- continue;
- this->printer.print_server_class_impl(cur_info.package_name, desc.block_name);
- for (const auto& rpc : desc.rpcs)
- {
- this->printer.print_server_impl_method(cur_info.package_name,
- desc.block_name,
- rpc.method_name,
- rpc.request_name,
- rpc.response_name);
- }
- this->printer.print_server_class_impl_end();
- }
- this->printer.print_server_main_begin();
- this->printer.print_server_main_address();
- for (const auto& desc : cur_info.desc_list)
- {
- if (desc.block_type != "service")
- continue;
- this->printer.print_server_main_method(desc.block_name);
- }
- this->printer.print_server_main_end();
- this->printer.print_server_main_return();
- this->printer.close();
- return true;
- }
- bool Generator::generate_client_cpp_file(const idl_info& cur_info,
- const std::string& idl_file_name)
- {
- this->client_cpp_file = this->out_dir;
- this->client_cpp_file.append("client");
- this->client_cpp_file.append(this->is_thrift ? ".thrift_skeleton." : ".pb_skeleton.");
- this->client_cpp_file.append("cc");
- if (this->printer.open(this->client_cpp_file) == false)
- return false;
- this->printer.print_client_file_include(idl_file_name);
- for (const auto& desc : cur_info.desc_list)
- {
- if (desc.block_type != "service")
- continue;
- for (const auto& rpc : desc.rpcs)
- {
- this->printer.print_client_done_method(cur_info.package_name,
- desc.block_name,
- rpc.method_name,
- rpc.response_name);
- }
- }
- this->printer.print_client_main_begin();
- this->printer.print_client_main_address();
- int id = 0;
- for (const auto& desc : cur_info.desc_list)
- {
- if (desc.block_type != "service")
- continue;
- std::string suffix;
- if (id != 0)
- suffix = std::to_string(id);
- id++;
- if (this->is_thrift)
- this->printer.print_client_main_service("Thrift",
- cur_info.package_name, desc.block_name, suffix);
- else
- this->printer.print_client_main_service("SRPC",
- cur_info.package_name, desc.block_name, suffix);
- auto rpc_it = desc.rpcs.cbegin();
- if (rpc_it != desc.rpcs.cend())
- {
- this->printer.print_client_main_method_call(cur_info.package_name,
- desc.block_name,
- rpc_it->method_name,
- rpc_it->request_name,
- suffix);
- rpc_it++;
- //if (rpc_it == desc.rpcs.end())
- // rpc_it = desc.rpcs.begin();
- //this->printer.print_client_main_create_task(print_client_main_create_task, rpc_it->method_name,
- // rpc_it->request_name);
- }
- }
- this->printer.print_client_main_end();
- this->printer.close();
- return true;
- }
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