Sell Side Sample

This sample waits for incoming connections on the pre-defined port (acts as a FIX Acceptor). If the incoming application-level message is SingleOrder - New then the ExecutionReport message is send to the counterparty. Otherwise the Email message is sent back.

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Source code:

• Listener.h
• Listener.cpp
• SellSide.cpp

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Listener.h:

#include <OnixS/FIXEngine.h>

class Listener : public OnixS::FIX::ISessionListener
{
public:
    Listener(void);

    /// Is called when the application-level message is received from the counterparty.
    void onInboundApplicationMsg(Message & msg, Session * sn) ONIXS_FIXENGINE_FINAL;

    /// Is called when the session-level message is received from the counterparty.
    void onInboundSessionMsg(Message & msg, Session * sn) ONIXS_FIXENGINE_FINAL;

    void onStateChange(SessionState::Enum newState, SessionState::Enum prevState,Session * sn) ONIXS_FIXENGINE_FINAL;

    void onError(ErrorReason::Enum reason, const std::string & description, Session * sn) ONIXS_FIXENGINE_FINAL;

    void onWarning(WarningReason::Enum reason, const std::string & description, Session * sn) ONIXS_FIXENGINE_FINAL;

private:
    int ordersCounter_;
};

Listener.cpp:

#include "Listener.h"

#include "../../Common/Settings.h"
#include "../../Common/Helpers.h"

using namespace Settings;

Listener::Listener() : ordersCounter_(0) {}

void Listener::onInboundApplicationMsg(Message & msg, Session * sn)
{
    std::clog << "\nIncoming application-level message:\n" << msg << std::endl;

    try {
        Message * reply = ONIXS_FIXENGINE_NULLPTR;

        if(msg.type() == MsgType::Order_Single) { // New Order - Single
            const Message & order = msg;
            Message * execReport = new Message(MsgType::Execution_Report, FixProtocolVersion);

            execReport->set(Tags::OrderID, order.get(Tags::ClOrdID).toString());

            const int EXEC_ID_SIZE = 128;
            char execID[EXEC_ID_SIZE];

            xsnprintf(execID, EXEC_ID_SIZE - 1, "ExecID_%d", ++ordersCounter_);
            execReport->set(Tags::ExecID, execID)
                .set(Tags::ExecType, "0")
                .set(Tags::ExecTransType, "0")  // New
                .set(Tags::OrdStatus, "0")  // New
                .set(Tags::Symbol, order.get(Tags::Symbol).toString())
                .set(Tags::Side, order.get(Tags::Side).toString())
                .set(Tags::OrderQty, order.get(Tags::OrderQty).toString())
                .set(Tags::CumQty, order.get(Tags::OrderQty).toString())
                .set(Tags::AvgPx, 100.0)
                .set(Tags::LastShares, 0)
                .set(Tags::LastPx, 0)
                .set(Tags::LeavesQty, order.get(Tags::OrderQty).toString());

            reply = execReport;
        }
        else {
            Message * email = new Message(MsgType::Email, FixProtocolVersion);
            email->set(Tags::EmailType, 0);
            Group group = email->setGroup(Tags::LinesOfText, 1);
            group[0].set(Tags::Text, "The message with MsgType=" + msg.type().toString() + " was received");

            reply = email;
        }

        if(ONIXS_FIXENGINE_NULLPTR != reply) {
            sn->send(reply);
            std::clog << "\nSent to the counterparty:\n" << *reply << std::endl;
        }

        delete reply;
    }
    catch(const std::exception & ex) {
        std::clog << "Exception during the processing of incoming message: " << ex.what() << std::endl;
    }
}

void Listener::onInboundSessionMsg(Message & msg, Session * /*sn*/)
{
    std::clog << "\nIncoming session-level message:\n" << msg << std::endl;
}

void Listener::onStateChange(SessionState::Enum newState, SessionState::Enum prevState,
                             Session * /*sn*/)
{
    std::clog << "\nSession's state is changed, prevState=" << SessionState::toString(prevState)
         << ", newState=" << SessionState::toString(newState) << std::endl;
}

void Listener::onError(ErrorReason::Enum /*reason*/, const std::string & description, Session * /*sn*/)
{
    std::cerr << "\nSession-level error:" << description << std::endl;
}

void Listener::onWarning(WarningReason::Enum /*reason*/, const std::string & description,
                         Session * /*sn*/)
{
    std::cerr << "\nSession-level warning:" << description << std::endl;
}

SellSide.cpp:

#include "Listener.h"

#include "../../Common/Helpers.h"
#include "../../Common/Settings.h"

using namespace Settings;

// Uncomment if you'd like to test SSL feature.
//#define SSL_ENCRYPTION 1

namespace {
class MyEngineListener : public OnixS::FIX::IEngineListener
{
public:
    void onUnknownIncomingConnection(const FlatMessage & /*incomingLogon*/, const int /*istenPort*/,
                                             const int /*counterpartyPort*/, const std::string & /*counterpartyIpAddress*/,
                                             std::string * /*rejectReason*/) ONIXS_FIXENGINE_OVERRIDE {};

    void onError(EngineErrorReason::Enum /*reason*/, const std::string & description) ONIXS_FIXENGINE_OVERRIDE {
        std::cerr << "\nEngine-level error: " << description << std::endl;
    }

    void onWarning(EngineWarningReason::Enum /*reason*/, const std::string & description) ONIXS_FIXENGINE_OVERRIDE {
        std::cerr << "\nEngine-level warning: " << description << std::endl;
    }
};
}

int main()
{
    std::clog << "SellSide sample." << std::endl << std::endl;

    try {
        EngineSettings settings;

        manageLinuxSignals();

#ifdef SSL_ENCRYPTION

        std::clog << "SSL Mode." << std::endl;

        settings.sslListenPort(Settings::SslListenPort)
                .sslCertificateFile("test.pem")
                .sslPrivateKeyFile("test.pem");
#else
        settings.listenPort(ListenPort);
#endif
        settings.licenseStore(LicenseStore)
                .sendLogoutOnInvalidLogon(true)
                .sendLogoutOnException(true); // E.g. to send a Logout when the sequence number of the incoming Logon (A) message is less than expected.

        Engine::init(settings);


        MyEngineListener engineListener;
        Engine::instance()->registerListener(&engineListener);

        Listener listener;

        Session session(TargetCompId, SenderCompId, FixProtocolVersion, &listener);

#ifdef SSL_ENCRYPTION
        session.encryptionMethod(EncryptionMethod::SSL);
#endif

        session.logonAsAcceptor();

        std::clog << "Awaiting session-initiator on port " << settings.listenPort() << "..." << std::endl;

        getchar();

        session.logout().shutdown();

        Engine::instance()->unregisterListener();

        Engine::shutdown();
    }
    catch(const std::exception & ex) {
        processSampleException(ex.what());
        return 1;
    }

    return 0;
}