direct_recv.cpp

Accepts an incoming connection and then receives like `simple_recv`. You can connect directly to `direct_recv` without a broker using simple_send.cpp. Make sure to stop the broker first or use a different port for `direct_recv`.

/*
*
* 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/container.hpp>
#include <proton/delivery.hpp>
#include <proton/message.hpp>
#include <proton/message_id.hpp>
#include <proton/messaging_handler.hpp>
#include <proton/link.hpp>
#include <proton/listen_handler.hpp>
#include <proton/listener.hpp>
#include <proton/value.hpp>
#include <iostream>
#include <map>
#include "fake_cpp11.hpp"
class direct_recv : public proton::messaging_handler {
private:
class listener_ready_handler : public proton::listen_handler {
void on_open(proton::listener& l) OVERRIDE {
std::cout << "listening on " << l.port() << std::endl;
}
};
std::string url;
proton::listener listener;
listener_ready_handler listen_handler;
int expected;
int received;
public:
direct_recv(const std::string &s, int c) : url(s), expected(c), received(0) {}
void on_container_start(proton::container &c) OVERRIDE {
listener = c.listen(url, listen_handler);
}
void on_message(proton::delivery &d, proton::message &msg) OVERRIDE {
if (proton::coerce<int>(msg.id()) < received) {
return; // Ignore duplicate
}
if (expected == 0 || received < expected) {
std::cout << msg.body() << std::endl;
received++;
}
if (received == expected) {
d.receiver().close();
d.connection().close();
listener.stop();
}
}
};
int main(int argc, char **argv) {
std::string address("127.0.0.1:5672/examples");
int message_count = 100;
example::options opts(argc, argv);
opts.add_value(address, 'a', "address", "listen and receive on URL", "URL");
opts.add_value(message_count, 'm', "messages", "receive COUNT messages", "COUNT");
try {
opts.parse();
direct_recv recv(address, message_count);
proton::container(recv).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;
}
proton::connection::close
void close()
Close the endpoint.
proton::container
A top-level container of connections, sessions, and links.
Definition: container.hpp:50
proton::container::run
void run()
Run the container in the current thread.
proton::delivery
A received message.
Definition: delivery.hpp:39
proton::delivery::receiver
class receiver receiver() const
Return the receiver for this delivery.
proton::link::close
void close()
Close the endpoint.
proton::listen_handler
Unsettled API - A handler for incoming connections.
Definition: listen_handler.hpp:39
proton::listener
A listener for incoming connections.
Definition: listener.hpp:33
proton::listener::port
int port()
Unsettedled API
proton::listener::stop
void stop()
Stop listening on the address provided to the call to container::listen that returned this listener.
proton::message
An AMQP message.
Definition: message.hpp:50
proton::message::id
void id(const message_id &)
Set the message ID.
proton::message::body
void body(const value &x)
Set the body. Equivalent to body() = x.
proton::messaging_handler
A handler for Proton messaging events.
Definition: messaging_handler.hpp:63
proton::messaging_handler::on_message
virtual void on_message(delivery &, message &)
A message is received.
proton::messaging_handler::on_container_start
virtual void on_container_start(container &)
The container event loop is starting.
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.
link.hpp
A named channel for sending or receiving messages.
listen_handler.hpp
Unsettled API - A handler for incoming connections.
listener.hpp
A listener for incoming connections.
message.hpp
An AMQP message.
message_id.hpp
An AMQP message ID.
messaging_handler.hpp
A handler for Proton messaging events.
value.hpp
A holder for any AMQP value, simple or complex.