The server part of a request-response example, that receives requests via the examples node, converts the body to uppercase and sends the result back to the indicated reply address.
/* * * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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 "options.hpp" #include <proton/connection.hpp> #include <proton/default_container.hpp> #include <proton/messaging_handler.hpp> #include <proton/tracker.hpp> #include <proton/url.hpp> #include <iostream> #include <map> #include <string> #include <cctype> #include "fake_cpp11.hpp" class server : public proton::messaging_handler { private: typedef std::map<std::string, proton::sender> sender_map; proton::url url; proton::connection connection; sender_map senders; public: server(const std::string &u) : url(u) {} void on_container_start(proton::container &c) OVERRIDE { connection = c.connect(url); connection.open_receiver(url.path()); std::cout << "server connected to " << url << std::endl; } std::string to_upper(const std::string &s) { std::string uc(s); size_t l = uc.size(); for (size_t i=0; i<l; i++) uc[i] = static_cast<char>(std::toupper(uc[i])); return uc; } void on_message(proton::delivery &, proton::message &m) OVERRIDE { std::cout << "Received " << m.body() << std::endl; std::string reply_to = m.reply_to(); proton::message reply; reply.to(reply_to); reply.body(to_upper(proton::get<std::string>(m.body()))); reply.correlation_id(m.correlation_id()); if (!senders[reply_to]) { senders[reply_to] = connection.open_sender(reply_to); } senders[reply_to].send(reply); } }; int main(int argc, char **argv) { std::string address("amqp://0.0.0.0:5672/examples"); example::options opts(argc, argv); opts.add_value(address, 'a', "address", "listen on URL", "URL"); try { opts.parse(); server srv(address); proton::default_container(srv).run(); return 0; } catch (const example::bad_option& e) { std::cout << opts << std::endl << e.what() << std::endl; } catch (const std::exception& e) { std::cerr << e.what() << std::endl; } return 1; }