IO2GResponseReaderFactory

The class creates readers to process the content of the trading server responses.

An O2GResponse object contains a response received from the trading server. To process the content of the response object, you must use an appropriate reader based on the response type. For the list of the response types, refer to the O2GResponseType description. The IO2GResponseReaderFactory class provides methods to create readers for all the response types.

O2GResponseReaderFactory responseFactory = mSession.getResponseReaderFactory();

Get Account ID, Balance, and Used margin [hide]

#include <ForexConnect.h>
 
class ResponseListener : public IO2GResponseListener
{
private:
    volatile long mRef;
    IO2GSession *mSession;
    std::string mRequestID;
 
public:
    // Constructor
    ResponseListener(IO2GSession *session)
    {
        mSession = session;
        mSession->addRef();
    }
 
    // Destructor
    ~ResponseListener()
    {
        mSession->release();
    }
 
    // Implementation of IAddRef interface public method addRef
    long addRef()
    {
        return InterlockedIncrement(&mRef);
    }
 
    // Implementation of IAddRef interface public method release
    long release()
    {
        long dwRes = InterlockedDecrement(&mRef);
        if (dwRes == 0)
            delete this;
        return dwRes;
    }
 
    //Set request
    void setRequest(const char * requestID)
    {
        mRequestID = requestID;
    }
 
    // Implementation of IO2GResponseListener interface public method onRequestCompleted
    void onRequestCompleted(const char *requestID, IO2GResponse *response)
    {
        if (mRequestID == requestID)
        {
            O2G2Ptr<IO2GResponseReaderFactory> readerFactory = mSession->getResponseReaderFactory();
            if (readerFactory != NULL)
            {
                O2G2Ptr<IO2GOffersTableResponseReader> reader = readerFactory->createOffersTableReader(response);
                for (int i = 0; i < reader->size(); ++i)
                {
                    O2G2Ptr<IO2GOfferRow> offer = reader->getRow(i);
                    std::cout << " This is a response to your request: " << std::endl <<
                                 "Instrument = " << offer->getInstrument() <<
                                 " Bid = " << offer->getBid() <<
                                 " Ask = " << offer->getAsk() << std::endl;
                }
            }
        }
    }
 
    // Implementation of IO2GResponseListener interface public method onRequestFailed
    void onRequestFailed(const char * requestID, const char * error)
    {
        std::cout << "Request failed. requestID = " << requestID << "; error = " << error << std::endl;
    }
 
    // Implementation of IO2GResponseListener interface public method onTablesUpdates
    void onTablesUpdates(IO2GResponse *response)
    {
        O2G2Ptr<IO2GResponseReaderFactory> factory = mSession->getResponseReaderFactory();
        if (factory != NULL)
        {
            O2G2Ptr<IO2GTablesUpdatesReader> updatesReader = factory->createTablesUpdatesReader(response);
            for (int i = 0; i < updatesReader->size(); ++i)
            {
                O2GTable tableType = updatesReader->getUpdateTable(i);
                if (tableType == Offers)
                {
                    O2G2Ptr<IO2GOfferRow> offer = updatesReader->getOfferRow(i);
                    std::cout << "This is a live update: " << std::endl <<
                                 "Instrument = " << offer->getInstrument() <<
                                 " Bid = " << offer->getBid() <<
                                 " Ask = " << offer->getAsk() << std::endl;
                }
            }
        }
    }
};

Public Methods
createAccountsTableReader	Creates a reader to process a response to a request for initial account information.
createClosedTradesTableReader	Creates a reader to process a response to a request for initial closed position information.
createLastOrderUpdateResponseReader	Creates a reader to process a response to the current state of an order request.
createMarketDataSnapshotReader	Creates a reader to process a response to a request for historical pricing information.
createMessagesTableReader	Creates a reader to process a response to a request for initial message information.
createOffersTableReader	Creates a reader to process a response to a request for initial offer information.
createOrderResponseReader	Creates a reader to process a response to a request for an order creation.
createOrdersTableReader	Creates a reader to process a response to a request for initial order information.
createSystemPropertiesReader	Creates a reader to process a response to a request for system properties information.
createTablesUpdatesReader	Creates a reader to process a table update response that is provided by the trading server automatically.
createTradesTableReader	Creates a reader to process a response to a request for initial open position information.
processMarginRequirementsResponse	Checks whether margin requirements information is loaded or not.

Parents
	`IAddRef`