Replay.h

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// Copyright 2005-2012 Onix Solutions Limited [OnixS]. All rights reserved.
//
// This software owned by Onix Solutions Limited [OnixS] and is protected by copyright law
// and international copyright treaties.
//
// Access to and use of the software is governed by the terms of the applicable ONIXS Software
// Services Agreement (the Agreement) and Customer end user license agreements granting
// a non-assignable, non-transferable and non-exclusive license to use the software
// for it's own data processing purposes under the terms defined in the Agreement.
//
// Except as otherwise granted within the terms of the Agreement, copying or reproduction of any part
// of this source code or associated reference material to any other location for further reproduction
// or redistribution, and any amendments to this copyright notice, are expressly prohibited.
//
// Any reproduction or redistribution for sale or hiring of the Software not in accordance with
// the terms of the Agreement is a violation of copyright law.
//
#pragma once

#include "OnixS/MTS/Cash/SDP/ABI.h"

#include <vector>
#include <string>

namespace OnixS {
namespace Mts {
namespace Cash {
namespace SDP {

    /// Ordered list of logs to be replayed.
    typedef std::vector<std::string> HandlerLogs;

    /// Read-write iterator over ordered list of logs to be replayed.
    typedef std::vector<std::string>::iterator HandlerLogsEntry;

    /// Listening interface for log replay-related events.
    class ONIXS_MTS_CASH_SDP_API ReplayListener
    {
        public:
            /// Is called once error occurs while replaying logs.
            virtual void onReplayError (const std::string& errorDescription) = 0;

            /// Is called once all the logs are replayed.
            virtual void onReplayFinished() = 0;

        protected:
            /// Deletion is not supposed
            /// through interface of this class.
            virtual ~ReplayListener();
    };

    /// Gathers log files logs which are stored in a given folder.
    void ONIXS_MTS_CASH_SDP_API gatherLogs(HandlerLogs* gatheredLogs, const std::string& root);

    /// Defines ONIXS_CBOECFE_PITCH_API which affect logs replay.
    struct ReplayOptions
    {
        /// List of instruments logs to be replayed.
        /// Must be stored in 'oldest to recent' order.
        HandlerLogs logs;

        /// Instance to notify about replay events.
        ReplayListener* listener;

        /// Specifies the time delay (milliseconds) between replayed packets.
        ///
        /// @note Ability to control log replay rate. The default value is 0 milliseconds.
        unsigned int packetReplayDelay;

        /// Initializes instance with default values.
        ReplayOptions()
            : listener(NULL)
            , packetReplayDelay(0)
        {
        }

        /// Initializes with all the logs which are available
        /// and are stored in a given folder.
        ReplayOptions(const std::string& logsRoot)
            : listener(NULL)
            , packetReplayDelay(0)
        {
            gatherLogs(&logs, logsRoot);
        }
    };
}
}
}
}