Loading...
Searching...
No Matches
helloworld.cpp

Connects to a broker on 127.0.0.1:5672, establishes a subscription from the 'examples' node, and creates a sending link to the same node.

Connects to a broker on 127.0.0.1:5672, establishes a subscription from the 'examples' node, and creates a sending link to the same node. Sends one message and receives it back.

/*
*
* 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 <proton/connection.hpp>
#include <proton/container.hpp>
#include <proton/delivery.hpp>
#include <proton/message.hpp>
#include <proton/messaging_handler.hpp>
#include <proton/tracker.hpp>
#include <iostream>
class hello_world : public proton::messaging_handler {
std::string conn_url_;
std::string addr_;
public:
hello_world(const std::string& u, const std::string& a) :
conn_url_(u), addr_(a) {}
void on_container_start(proton::container& c) override {
c.connect(conn_url_);
}
void on_connection_open(proton::connection& c) override {
c.open_receiver(addr_);
c.open_sender(addr_);
}
void on_sendable(proton::sender &s) override {
proton::message m("Hello World!");
s.send(m);
s.close();
}
void on_message(proton::delivery &d, proton::message &m) override {
std::cout << m.body() << std::endl;
d.connection().close();
}
};
int main(int argc, char **argv) {
try {
std::string conn_url = argc > 1 ? argv[1] : "//127.0.0.1:5672";
std::string addr = argc > 2 ? argv[2] : "examples";
hello_world hw(conn_url, addr);
proton::container(hw).run();
return 0;
} catch (const std::exception& e) {
std::cerr << e.what() << std::endl;
}
return 1;
}
proton::connection
A connection to a remote AMQP peer.
Definition connection.hpp:47
proton::connection::close
void close()
Close the connection.
proton::connection::open_receiver
receiver open_receiver(const std::string &addr)
Open a receiver for addr on default_session().
proton::connection::open_sender
sender open_sender(const std::string &addr)
Open a sender for addr on default_session().
proton::container
A top-level container of connections, sessions, and links.
Definition container.hpp:49
proton::container::run
void run()
Run the container in the current thread.
proton::container::connect
returned< connection > connect(const std::string &conn_url, const connection_options &conn_opts)
Connect to conn_url and send an open request to the remote peer.
proton::delivery
A received message.
Definition delivery.hpp:40
proton::link::close
void close()
Close the endpoint.
proton::message
An AMQP message.
Definition message.hpp:48
proton::message::body
void body(const value &x)
Set the body. Equivalent to body() = x.
proton::messaging_handler
Handler for Proton messaging events.
Definition messaging_handler.hpp:69
proton::messaging_handler::on_connection_open
virtual void on_connection_open(connection &)
The remote peer opened the connection: called once on initial open, and again on each successful auto...
proton::messaging_handler::on_message
virtual void on_message(delivery &, message &)
A message is received.
proton::messaging_handler::on_sendable
virtual void on_sendable(sender &)
A message can be sent.
proton::messaging_handler::on_container_start
virtual void on_container_start(container &)
The container event loop is starting.
proton::sender
A channel for sending messages.
Definition sender.hpp:40
proton::sender::send
tracker send(const message &m)
Send a message on the sender.
proton::transfer::connection
class connection connection() const
Return the connection for this transfer.
connection.hpp
A connection to a remote AMQP peer.
container.hpp
A top-level container of connections, sessions, and links.
delivery.hpp
A received message.
message.hpp
An AMQP message.
messaging_handler.hpp
Handler for Proton messaging events.
tracker.hpp
A tracker for a sent message.