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/**
 *  @file broker.h
 *  @brief Declaration of the Broker class.
 *  @author Andreas Aardal Hanssen
 *  @date 2002-2005
 */

#ifndef broker_h_included
#define broker_h_included

#include "depot.h"
#include "operators.h"
#include "recursivedescent.h"
#include "session.h"

#include <map>
#include <memory>
#include <string>

namespace Binc {

  class Request;
  class Broker;

  class BrokerFactory {
  private:
    std::map<Session::State, Broker> brokers;

    BrokerFactory();

    mutable std::string lastError;

  public:
    Broker *getBroker(Session::State state);
    void assign(const std::string &fname, std::shared_ptr<Operator> o);
    void addCapability(const std::string &c);
    Operator *getOperator(Session::State state, const std::string &name) const;

    const std::string &getLastError() const
    {
      return lastError;
    }

    void setLastError(std::string error) const
    {
      lastError = std::move(error);
    }

    static BrokerFactory &getInstance();

    BrokerFactory(const BrokerFactory &) = delete;
    BrokerFactory(const BrokerFactory &&) = delete;
  };

  class Broker {
  private:
    std::map<std::string, std::shared_ptr<Operator>> operators;

  public:
    Parser &parser;

    Operator *get(const std::string &name) const;
    void assign(const std::string &fname, std::shared_ptr<Operator> o);
    Parser::ParseResult parseStub(Request &cmd);

    Broker(Parser &p) : parser(p){};
    Broker(const Broker &) = delete;
    Broker(Broker &&) = default;
  };

}

#endif