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#include <qpid/messaging/Connection.h>
#include <qpid/messaging/Message.h>
#include <qpid/messaging/Receiver.h>
#include <qpid/messaging/Sender.h>
#include <qpid/messaging/Session.h>
#include <iostream>
#include <sstream>
using std::stringstream;
using namespace qpid::messaging;
int main(int argc, char** argv) {
std::string broker = argc > 1 ? argv[1] : "localhost:5672";
std::string connectionOptions = argc > 2 ? argv[2] : "";
std::string query =
"let $w := ./weather "
"return $w/station = 'Raleigh-Durham International Airport (KRDU)' "
" and $w/temperature_f > 50"
" and $w/temperature_f - $w/dewpoint > 5"
" and $w/wind_speed_mph > 7"
" and $w/wind_speed_mph < 20";
stringstream address;
address << "xml; {"
" create: always, " // This line and the next are not in docs
" node: { type: topic }, " // Added so it works "out of the box"
" link: { "
" x-bindings: [{ exchange: xml, key: weather, arguments: { xquery:\""
<< query
<< "\"} }] "
" } "
"}";
Connection connection(broker, connectionOptions);
try {
connection.open();
Session session = connection.createSession();
Receiver receiver = session.createReceiver(address.str());
Message message;
message.setContent(
"<weather>"
"<station>Raleigh-Durham International Airport (KRDU)</station>"
"<wind_speed_mph>16</wind_speed_mph>"
"<temperature_f>70</temperature_f>"
"<dewpoint>35</dewpoint>"
"</weather>");
Sender sender = session.createSender("xml/weather");
sender.send(message);
Message response = receiver.fetch();
std::cout << response.getContent() << std::endl;
connection.close();
return 0;
} catch(const std::exception& error) {
std::cerr << error.what() << std::endl;
connection.close();
return 1;
}
}
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