notification_enum.hpp

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#ifndef SNBMODULES_INCLUDE_SNBMODULES_COMMON_NOTIFICATION_ENUM_HPP_
#define SNBMODULES_INCLUDE_SNBMODULES_COMMON_NOTIFICATION_ENUM_HPP_
 
#include <map>
#include <optional>
#include <string>
 
namespace dunedaq::snbmodules {
struct notification_type
{
  enum e_notification_type
  {
    // bookkeeper
    CONNECTION_REQUEST,
    NEW_TRANSFER,
    UPDATE_REQUEST,
 
    // client
    GROUP_METADATA,
    TRANSFER_ERROR,
 
    // both
    START_TRANSFER,
    TRANSFER_METADATA,
    PAUSE_TRANSFER,
    RESUME_TRANSFER,
    CANCEL_TRANSFER,
  };
 
  static std::string notification_to_string(e_notification_type e)
  {
    const std::map<e_notification_type, std::string> MyEnumStrings{
      { CONNECTION_REQUEST, "CONNECTION_REQUEST" }, { NEW_TRANSFER, "NEW_TRANSFER" },
      { UPDATE_REQUEST, "UPDATE_REQUEST" },         { GROUP_METADATA, "GROUP_METADATA" },
      { TRANSFER_ERROR, "TRANSFER_ERROR" },         { START_TRANSFER, "START_TRANSFER" },
      { TRANSFER_METADATA, "TRANSFER_METADATA" },   { PAUSE_TRANSFER, "PAUSE_TRANSFER" },
      { RESUME_TRANSFER, "RESUME_TRANSFER" },       { CANCEL_TRANSFER, "CANCEL_TRANSFER" }
    };
    auto it = MyEnumStrings.find(e);
    return it == MyEnumStrings.end() ? "Not supported" : it->second;
  }
 
  static std::optional<e_notification_type> string_to_notification(std::string s)
  {
    const std::map<std::string, e_notification_type> MyStringsEnum{
      { "CONNECTION_REQUEST", CONNECTION_REQUEST }, { "NEW_TRANSFER", NEW_TRANSFER },
      { "UPDATE_REQUEST", UPDATE_REQUEST },         { "GROUP_METADATA", GROUP_METADATA },
      { "TRANSFER_ERROR", TRANSFER_ERROR },         { "START_TRANSFER", START_TRANSFER },
      { "TRANSFER_METADATA", TRANSFER_METADATA },   { "PAUSE_TRANSFER", PAUSE_TRANSFER },
      { "RESUME_TRANSFER", RESUME_TRANSFER },       { "CANCEL_TRANSFER", CANCEL_TRANSFER }
    };
    auto it = MyStringsEnum.find(s);
    if (it == MyStringsEnum.end()) {
      return std::nullopt;
    }
    return it->second;
  }
};
 
} // namespace dunedaq::snbmodules
#endif // SNBMODULES_INCLUDE_SNBMODULES_COMMON_NOTIFICATION_ENUM_HPP_