CollectorRef.h

//------------------------------------------------------------------------------
/*
    This file is part of rippled: https://github.com/ripple/rippled
    Copyright (c) 2012-2017 Ripple Labs Inc
 
    Permission to use, copy, modify, and/or distribute this software for any
    purpose  with  or without fee is hereby granted, provided that the above
    copyright notice and this permission notice appear in all copies.
 
    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
//==============================================================================
 
#ifndef RIPPLE_TEST_CSF_COLLECTOREF_H_INCLUDED
#define RIPPLE_TEST_CSF_COLLECTOREF_H_INCLUDED
 
#include <test/csf/SimTime.h>
#include <test/csf/events.h>
 
namespace ripple {
namespace test {
namespace csf {
 
class CollectorRef
{
    using tp = SimTime;
 
    // Interface for type-erased collector instance
    struct ICollector
    {
        virtual ~ICollector() = default;
 
        virtual void
        on(PeerID node, tp when, Share<Tx> const&) = 0;
 
        virtual void
        on(PeerID node, tp when, Share<TxSet> const&) = 0;
 
        virtual void
        on(PeerID node, tp when, Share<Validation> const&) = 0;
 
        virtual void
        on(PeerID node, tp when, Share<Ledger> const&) = 0;
 
        virtual void
        on(PeerID node, tp when, Share<Proposal> const&) = 0;
 
        virtual void
        on(PeerID node, tp when, Receive<Tx> const&) = 0;
 
        virtual void
        on(PeerID node, tp when, Receive<TxSet> const&) = 0;
 
        virtual void
        on(PeerID node, tp when, Receive<Validation> const&) = 0;
 
        virtual void
        on(PeerID node, tp when, Receive<Ledger> const&) = 0;
 
        virtual void
        on(PeerID node, tp when, Receive<Proposal> const&) = 0;
 
        virtual void
        on(PeerID node, tp when, Relay<Tx> const&) = 0;
 
        virtual void
        on(PeerID node, tp when, Relay<TxSet> const&) = 0;
 
        virtual void
        on(PeerID node, tp when, Relay<Validation> const&) = 0;
 
        virtual void
        on(PeerID node, tp when, Relay<Ledger> const&) = 0;
 
        virtual void
        on(PeerID node, tp when, Relay<Proposal> const&) = 0;
 
        virtual void
        on(PeerID node, tp when, SubmitTx const&) = 0;
 
        virtual void
        on(PeerID node, tp when, StartRound const&) = 0;
 
        virtual void
        on(PeerID node, tp when, CloseLedger const&) = 0;
 
        virtual void
        on(PeerID node, tp when, AcceptLedger const&) = 0;
 
        virtual void
        on(PeerID node, tp when, WrongPrevLedger const&) = 0;
 
        virtual void
        on(PeerID node, tp when, FullyValidateLedger const&) = 0;
    };
 
    // Bridge between type-ful collector T and type erased instance
    template <class T>
    class Any final : public ICollector
    {
        T& t_;
 
    public:
        Any(T& t) : t_{t}
        {
        }
 
        // Can't copy
        Any(Any const&) = delete;
        Any&
        operator=(Any const&) = delete;
 
        Any(Any&&) = default;
        Any&
        operator=(Any&&) = default;
 
        virtual void
        on(PeerID node, tp when, Share<Tx> const& e) override
        {
            t_.on(node, when, e);
        }
 
        virtual void
        on(PeerID node, tp when, Share<TxSet> const& e) override
        {
            t_.on(node, when, e);
        }
 
        virtual void
        on(PeerID node, tp when, Share<Validation> const& e) override
        {
            t_.on(node, when, e);
        }
 
        virtual void
        on(PeerID node, tp when, Share<Ledger> const& e) override
        {
            t_.on(node, when, e);
        }
 
        virtual void
        on(PeerID node, tp when, Share<Proposal> const& e) override
        {
            t_.on(node, when, e);
        }
 
        void
        on(PeerID node, tp when, Receive<Tx> const& e) override
        {
            t_.on(node, when, e);
        }
 
        virtual void
        on(PeerID node, tp when, Receive<TxSet> const& e) override
        {
            t_.on(node, when, e);
        }
 
        virtual void
        on(PeerID node, tp when, Receive<Validation> const& e) override
        {
            t_.on(node, when, e);
        }
 
        virtual void
        on(PeerID node, tp when, Receive<Ledger> const& e) override
        {
            t_.on(node, when, e);
        }
 
        virtual void
        on(PeerID node, tp when, Receive<Proposal> const& e) override
        {
            t_.on(node, when, e);
        }
 
        void
        on(PeerID node, tp when, Relay<Tx> const& e) override
        {
            t_.on(node, when, e);
        }
 
        virtual void
        on(PeerID node, tp when, Relay<TxSet> const& e) override
        {
            t_.on(node, when, e);
        }
 
        virtual void
        on(PeerID node, tp when, Relay<Validation> const& e) override
        {
            t_.on(node, when, e);
        }
 
        virtual void
        on(PeerID node, tp when, Relay<Ledger> const& e) override
        {
            t_.on(node, when, e);
        }
 
        virtual void
        on(PeerID node, tp when, Relay<Proposal> const& e) override
        {
            t_.on(node, when, e);
        }
 
        virtual void
        on(PeerID node, tp when, SubmitTx const& e) override
        {
            t_.on(node, when, e);
        }
 
        virtual void
        on(PeerID node, tp when, StartRound const& e) override
        {
            t_.on(node, when, e);
        }
 
        virtual void
        on(PeerID node, tp when, CloseLedger const& e) override
        {
            t_.on(node, when, e);
        }
 
        virtual void
        on(PeerID node, tp when, AcceptLedger const& e) override
        {
            t_.on(node, when, e);
        }
 
        virtual void
        on(PeerID node, tp when, WrongPrevLedger const& e) override
        {
            t_.on(node, when, e);
        }
 
        virtual void
        on(PeerID node, tp when, FullyValidateLedger const& e) override
        {
            t_.on(node, when, e);
        }
    };
 
    std::unique_ptr<ICollector> impl_;
 
public:
    template <class T>
    CollectorRef(T& t) : impl_{new Any<T>(t)}
    {
    }
 
    // Non-copyable
    CollectorRef(CollectorRef const& c) = delete;
    CollectorRef&
    operator=(CollectorRef& c) = delete;
 
    CollectorRef(CollectorRef&&) = default;
    CollectorRef&
    operator=(CollectorRef&&) = default;
 
    template <class E>
    void
    on(PeerID node, tp when, E const& e)
    {
        impl_->on(node, when, e);
    }
};
 
class CollectorRefs
{
    std::vector<CollectorRef> collectors_;
 
public:
    template <class Collector>
    void
    add(Collector& collector)
    {
        collectors_.emplace_back(collector);
    }
 
    template <class E>
    void
    on(PeerID node, SimTime when, E const& e)
    {
        for (auto& c : collectors_)
        {
            c.on(node, when, e);
        }
    }
};
 
}  // namespace csf
}  // namespace test
}  // namespace ripple
 
#endif