Manager.h

#pragma once
 
#include <xrpl/beast/utility/Journal.h>
#include <xrpl/nodestore/Backend.h>
#include <xrpl/nodestore/Database.h>
#include <xrpl/nodestore/Factory.h>
#include <xrpl/nodestore/Scheduler.h>
 
#include <cstddef>
#include <memory>
#include <string>
 
namespace xrpl::node_store {

class Manager
{
public:
    virtual ~Manager() = default;
    Manager() = default;
    Manager(Manager const&) = delete;
    Manager&
    operator=(Manager const&) = delete;

    static Manager&
    instance();

    virtual void
    insert(Factory& factory) = 0;

    virtual void
    erase(Factory& factory) = 0;

    virtual Factory*
    find(std::string const& name) = 0;

    virtual std::unique_ptr<Backend>
    makeBackend(
        Section const& parameters,
        std::size_t burstSize,
        Scheduler& scheduler,
        beast::Journal journal) = 0;

    virtual std::unique_ptr<Database>
    makeDatabase(
        std::size_t burstSize,
        Scheduler& scheduler,
        int readThreads,
        Section const& backendParameters,
        beast::Journal journal) = 0;
};
 
}  // namespace xrpl::node_store