peer_query.hpp

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#ifndef IROHA_PEER_QUERY_HPP
#define IROHA_PEER_QUERY_HPP

#include <memory>
#include <vector>

#include <boost/optional.hpp>
#include "interfaces/common_objects/string_view_types.hpp"
#include "interfaces/common_objects/types.hpp"

namespace shared_model {
  namespace interface {
    class Peer;
  }  // namespace interface
}  // namespace shared_model

namespace iroha {
  namespace ametsuchi {

    class PeerQuery {
     protected:
      using wPeer = std::shared_ptr<shared_model::interface::Peer>;

     public:
      // TODO andrei 17.10.18 IR-1764 Make PeerQuery::getLedgerPeers const

      virtual boost::optional<std::vector<wPeer>> getLedgerPeers() = 0;

      virtual boost::optional<PeerQuery::wPeer> getLedgerPeerByPublicKey(
          shared_model::interface::types::PublicKeyHexStringView public_key)
          const = 0;

      virtual ~PeerQuery() = default;
    };

  }  // namespace ametsuchi
}  // namespace iroha
#endif  // IROHA_PEER_QUERY_HPP