OTMessageOutbuffer.hpp

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/************************************************************
 *
 *  OTMessageOutbuffer.hpp
 *
 */

/************************************************************
 -----BEGIN PGP SIGNED MESSAGE-----
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 *                 OPEN TRANSACTIONS
 *
 *       Financial Cryptography and Digital Cash
 *       Library, Protocol, API, Server, CLI, GUI
 *
 *       -- Anonymous Numbered Accounts.
 *       -- Untraceable Digital Cash.
 *       -- Triple-Signed Receipts.
 *       -- Cheques, Vouchers, Transfers, Inboxes.
 *       -- Basket Currencies, Markets, Payment Plans.
 *       -- Signed, XML, Ricardian-style Contracts.
 *       -- Scripted smart contracts.
 *
 *  Copyright (C) 2010-2013 by "Fellow Traveler" (A pseudonym)
 *
 *  EMAIL:
 *  [email protected]
 *
 *  BITCOIN:  1NtTPVVjDsUfDWybS4BwvHpG2pdS9RnYyQ
 *
 *  KEY FINGERPRINT (PGP Key in license file):
 *  9DD5 90EB 9292 4B48 0484  7910 0308 00ED F951 BB8E
 *
 *  OFFICIAL PROJECT WIKI(s):
 *  https://github.com/FellowTraveler/Moneychanger
 *  https://github.com/FellowTraveler/Open-Transactions/wiki
 *
 *  WEBSITE:
 *  http://www.OpenTransactions.org/
 *
 *  Components and licensing:
 *   -- Moneychanger..A Java client GUI.....LICENSE:.....GPLv3
 *   -- otlib.........A class library.......LICENSE:...LAGPLv3
 *   -- otapi.........A client API..........LICENSE:...LAGPLv3
 *   -- opentxs/ot....Command-line client...LICENSE:...LAGPLv3
 *   -- otserver......Server Application....LICENSE:....AGPLv3
 *  Github.com/FellowTraveler/Open-Transactions/wiki/Components
 *
 *  All of the above OT components were designed and written by
 *  Fellow Traveler, with the exception of Moneychanger, which
 *  was contracted out to Vicky C ([email protected]).
 *  The open-source community has since actively contributed.
 *
 *  -----------------------------------------------------
 *
 *   LICENSE:
 *   This program is free software: you can redistribute it
 *   and/or modify it under the terms of the GNU Affero
 *   General Public License as published by the Free Software
 *   Foundation, either version 3 of the License, or (at your
 *   option) any later version.
 *
 *   ADDITIONAL PERMISSION under the GNU Affero GPL version 3
 *   section 7: (This paragraph applies only to the LAGPLv3
 *   components listed above.) If you modify this Program, or
 *   any covered work, by linking or combining it with other
 *   code, such other code is not for that reason alone subject
 *   to any of the requirements of the GNU Affero GPL version 3.
 *   (==> This means if you are only using the OT API, then you
 *   don't have to open-source your code--only your changes to
 *   Open-Transactions itself must be open source. Similar to
 *   LGPLv3, except it applies to software-as-a-service, not
 *   just to distributing binaries.)
 *
 *   Extra WAIVER for OpenSSL, Lucre, and all other libraries
 *   used by Open Transactions: This program is released under
 *   the AGPL with the additional exemption that compiling,
 *   linking, and/or using OpenSSL is allowed. The same is true
 *   for any other open source libraries included in this
 *   project: complete waiver from the AGPL is hereby granted to
 *   compile, link, and/or use them with Open-Transactions,
 *   according to their own terms, as long as the rest of the
 *   Open-Transactions terms remain respected, with regard to
 *   the Open-Transactions code itself.
 *
 *   Lucre License:
 *   This code is also "dual-license", meaning that Ben Lau-
 *   rie's license must also be included and respected, since
 *   the code for Lucre is also included with Open Transactions.
 *   See Open-Transactions/src/otlib/lucre/LUCRE_LICENSE.txt
 *   The Laurie requirements are light, but if there is any
 *   problem with his license, simply remove the Lucre code.
 *   Although there are no other blind token algorithms in Open
 *   Transactions (yet. credlib is coming), the other functions
 *   will continue to operate.
 *   See Lucre on Github:  https://github.com/benlaurie/lucre
 *   -----------------------------------------------------
 *   You should have received a copy of the GNU Affero General
 *   Public License along with this program.  If not, see:
 *   http://www.gnu.org/licenses/
 *
 *   If you would like to use this software outside of the free
 *   software license, please contact FellowTraveler.
 *   (Unfortunately many will run anonymously and untraceably,
 *   so who could really stop them?)
 *
 *   DISCLAIMER:
 *   This program is distributed in the hope that it will be
 *   useful, but WITHOUT ANY WARRANTY; without even the implied
 *   warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 *   PURPOSE.  See the GNU Affero General Public License for
 *   more details.

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#ifndef OPENTXS_CLIENT_OTMESSAGEOUTBUFFER_HPP
#define OPENTXS_CLIENT_OTMESSAGEOUTBUFFER_HPP

#include "opentxs/core/OTString.hpp"
#include <map>

namespace opentxs
{

class OTMessage;
class OTPseudonym;
class OTTransaction;

typedef std::multimap<int64_t, OTMessage*> mapOfMessages;

// OUTOING MESSAGES (from me--client--sent to server.)
//
// The purpose of this class is to cache client requests (being sent to the
// server)
// so that they can later be queried (using the request number) by the developer
// using the OTAPI, so that if transaction numbers need to be clawed back from
// failed
// messages, etc, they are available.
//
// The OT client side also can use this as a mechanism to help separate
// old-and-dealt-with
// messages, by explicitly removing messages from this queue once they are dealt
// with.
// This way the developer can automatically assume that any reply is old if it
// carries
// a request number that cannot be found in this queue.
//
// This class is pretty generic and so may be used in other ways, where "map"
// functionality is required.
class OTMessageOutbuffer
{
public:
    EXPORT OTMessageOutbuffer();
    EXPORT ~OTMessageOutbuffer();

    EXPORT void Clear(const OTString* serverId = nullptr,
                      const OTString* nymId = nullptr,
                      OTPseudonym* nym = nullptr,
                      const bool* harvestingForRetry = nullptr);
    // Allocate theMsg on the heap (takes ownership.) Mapped by request num.
    // Note: AddSentMessage, if it finds a message already on the map with the
    // same request number, deletes the old one before adding the new one. In
    // the future may contemplate using multimap here instead (if completeness
    // becomes desired over uniqueness.)
    EXPORT void AddSentMessage(OTMessage& message);
    // null == not found. caller NOT responsible to delete.
    EXPORT OTMessage* GetSentMessage(const int64_t& requestNum,
                                     const OTString& serverId,
                                     const OTString& nymId);
    // true == it was removed. false == it wasn't found.
    EXPORT bool RemoveSentMessage(const int64_t& requestNum,
                                  const OTString& serverId,
                                  const OTString& nymId);
    // null == not found. caller NOT responsible to delete.
    EXPORT OTMessage* GetSentMessage(const OTTransaction& transaction);
    // true == it was removed. false == it wasn't found.
    EXPORT bool RemoveSentMessage(const OTTransaction& transaction);

private:
    OTMessageOutbuffer(const OTMessageOutbuffer&);
    OTMessageOutbuffer& operator=(const OTMessageOutbuffer&);

private:
    mapOfMessages messagesMap_;
    OTString dataFolder_;
};

} // namespace opentxs

#endif // OPENTXS_CLIENT_OTMESSAGEOUTBUFFER_HPP