Loading...
Searching...
No Matches
simple_send.cpp

An example of sending a fixed number of messages and tracking their (asynchronous) acknowledgement.

An example of sending a fixed number of messages and tracking their (asynchronous) acknowledgement. Messages are sent through the 'examples' node on an intermediary accessible on 127.0.0.1:5672.

/*
*
* 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/connection_options.hpp>
#include <proton/container.hpp>
#include <proton/message.hpp>
#include <proton/message_id.hpp>
#include <proton/messaging_handler.hpp>
#include <proton/reconnect_options.hpp>
#include <proton/tracker.hpp>
#include <proton/types.hpp>
#include <iostream>
#include <map>
class simple_send : public proton::messaging_handler {
private:
std::string url;
std::string user;
std::string password;
bool reconnect;
proton::sender sender;
int sent;
int confirmed;
int total;
public:
simple_send(const std::string &s, const std::string &u, const std::string &p, bool r, int c) :
url(s), user(u), password(p), reconnect(r), sent(0), confirmed(0), total(c) {}
void on_container_start(proton::container &c) override {
proton::connection_options co;
if (!user.empty()) co.user(user);
if (!password.empty()) co.password(password);
if (reconnect) co.reconnect(proton::reconnect_options());
sender = c.open_sender(url, co);
}
void on_connection_open(proton::connection& c) override {
if (c.reconnected()) {
sent = confirmed; // Re-send unconfirmed messages after a reconnect
}
}
void on_sendable(proton::sender &s) override {
while (s.credit() && sent < total) {
proton::message msg;
std::map<std::string, int> m;
m["sequence"] = sent + 1;
msg.id(sent + 1);
msg.body(m);
s.send(msg);
sent++;
}
}
void on_tracker_accept(proton::tracker &t) override {
confirmed++;
if (confirmed == total) {
std::cout << "all messages confirmed" << std::endl;
t.connection().close();
}
}
void on_transport_close(proton::transport &) override {
sent = confirmed;
}
};
int main(int argc, char **argv) {
std::string address("127.0.0.1:5672/examples");
std::string user;
std::string password;
bool reconnect = false;
int message_count = 100;
example::options opts(argc, argv);
opts.add_value(address, 'a', "address", "connect and send to URL", "URL");
opts.add_value(user, 'u', "user", "authenticate as USER", "USER");
opts.add_value(password, 'p', "password", "authenticate with PASSWORD", "PASSWORD");
opts.add_flag(reconnect, 'r', "reconnect", "reconnect on connection failure");
opts.add_value(message_count, 'm', "messages", "send COUNT messages", "COUNT");
try {
opts.parse();
simple_send send(address, user, password, reconnect, message_count);
proton::container(send).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_options
Options for creating a connection.
Definition connection_options.hpp:67
proton::connection_options::password
connection_options & password(const std::string &)
Set the password used to authenticate the connection.
proton::connection_options::reconnect
connection_options & reconnect(const reconnect_options &)
Unsettled API - Set reconnect timing options.
proton::connection_options::user
connection_options & user(const std::string &)
Set the user name used to authenticate the connection.
proton::connection
A connection to a remote AMQP peer.
Definition connection.hpp:47
proton::connection::reconnected
bool reconnected() const
Unsettled API - True if this connection has been automatically re-connected.
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::open_sender
returned< sender > open_sender(const std::string &addr_url)
Open a connection and sender for addr_url.
proton::link::credit
int credit() const
Credit available on the link.
proton::message
An AMQP message.
Definition message.hpp:48
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
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_tracker_accept
virtual void on_tracker_accept(tracker &)
The receiving peer accepted a transfer.
proton::messaging_handler::on_sendable
virtual void on_sendable(sender &)
A message can be sent.
proton::messaging_handler::on_transport_close
virtual void on_transport_close(transport &)
The final event for a connection: there will be no more reconnect attempts and no more event function...
proton::messaging_handler::on_container_start
virtual void on_container_start(container &)
The container event loop is starting.
proton::reconnect_options
Unsettled API - Options for reconnect and failover after connection loss.
Definition reconnect_options.hpp:49
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::tracker
A tracker for a sent message.
Definition tracker.hpp:41
proton::transfer::connection
class connection connection() const
Return the connection for this transfer.
proton::transport
A network channel supporting an AMQP connection.
Definition transport.hpp:37
connection.hpp
A connection to a remote AMQP peer.
connection_options.hpp
Options for creating a connection.
container.hpp
A top-level container of connections, sessions, and links.
message.hpp
An AMQP message.
message_id.hpp
An AMQP message ID.
messaging_handler.hpp
Handler for Proton messaging events.
reconnect_options.hpp
Unsettled API - Options for reconnect and failover after connection loss.
tracker.hpp
A tracker for a sent message.
types.hpp
Proton types used to represent AMQP types.