secondary_config.h

#ifndef SECONDARY_CONFIG_H_
#define SECONDARY_CONFIG_H_
 
#include <json/json.h>
#include <boost/filesystem.hpp>
#include <unordered_map>
 
#include "primary/secondary_config.h"
#include "virtualsecondary.h"
 
namespace Primary {
 
class IPSecondaryConfig {
 public:
  static constexpr const char* const AddrField{"addr"};
 
  IPSecondaryConfig(std::string addr_ip, uint16_t addr_port) : ip(std::move(addr_ip)), port(addr_port) {}
 
  friend std::ostream& operator<<(std::ostream& os, const IPSecondaryConfig& cfg) {
    os << "(addr: " << cfg.ip << ":" << cfg.port << ")";
    return os;
  }
 
 public:
  const std::string ip;
  const uint16_t port;
};
 
class IPSecondariesConfig : public SecondaryConfig {
 public:
  static const char* const Type;
  static constexpr const char* const PortField{"secondaries_wait_port"};
  static constexpr const char* const TimeoutField{"secondaries_wait_timeout"};
  static constexpr const char* const SecondariesField{"secondaries"};
 
  IPSecondariesConfig(const uint16_t wait_port, const int timeout_s)
      : SecondaryConfig(Type), secondaries_wait_port{wait_port}, secondaries_timeout_s{timeout_s} {}
 
  friend std::ostream& operator<<(std::ostream& os, const IPSecondariesConfig& cfg) {
    os << "(wait_port: " << cfg.secondaries_wait_port << " timeout_s: " << cfg.secondaries_timeout_s << ")";
    return os;
  }
 
 public:
  const uint16_t secondaries_wait_port;
  const int secondaries_timeout_s;
  std::vector<IPSecondaryConfig> secondaries_cfg;
};
 
class SecondaryConfigParser {
 public:
  using Configs = std::vector<std::shared_ptr<SecondaryConfig>>;
 
  static Configs parse_config_file(const boost::filesystem::path& config_file);
  virtual ~SecondaryConfigParser() = default;
 
  // TODO implement iterator instead of parse
  virtual Configs parse() = 0;
};
 
class JsonConfigParser : public SecondaryConfigParser {
 public:
  JsonConfigParser(const boost::filesystem::path& config_file);
 
  Configs parse() override;
 
 private:
  static void createIPSecondariesCfg(Configs& configs, const Json::Value& json_ip_sec_cfg);
  static void createVirtualSecondariesCfg(Configs& configs, const Json::Value& json_virtual_sec_cfg);
  // add here a factory method for another type of secondary config
 
 private:
  using SecondaryConfigFactoryRegistry = std::unordered_map<std::string, std::function<void(Configs&, Json::Value&)>>;
 
  SecondaryConfigFactoryRegistry sec_cfg_factory_registry_ = {
      {IPSecondariesConfig::Type, createIPSecondariesCfg}, {VirtualSecondaryConfig::Type, createVirtualSecondariesCfg}
      // add here factory method for another type of secondary config
  };
 
  Json::Value root_;
};
 
}  // namespace Primary
 
#endif  // SECONDARY_CONFIG_H_