Line data    Source code

       1             : /**
       2             :  * Copyright Soramitsu Co., Ltd. 2018 All Rights Reserved.
       3             :  * http://soramitsu.co.jp
       4             :  *
       5             :  * Licensed under the Apache License, Version 2.0 (the "License");
       6             :  * you may not use this file except in compliance with the License.
       7             :  * You may obtain a copy of the License at
       8             :  *
       9             :  *        http://www.apache.org/licenses/LICENSE-2.0
      10             :  *
      11             :  * Unless required by applicable law or agreed to in writing, software
      12             :  * distributed under the License is distributed on an "AS IS" BASIS,
      13             :  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      14             :  * See the License for the specific language governing permissions and
      15             :  * limitations under the License.
      16             :  */
      17             : 
      18             : #ifndef IROHA_TRANSPORT_BUILDER_HPP
      19             : #define IROHA_TRANSPORT_BUILDER_HPP
      20             : 
      21             : #include "common/result.hpp"
      22             : 
      23             : namespace shared_model {
      24             :   namespace proto {
      25             : 
      26             :     /**
      27             :      * Class for building any shared model objects from corresponding transport
      28             :      * representation (e.g. protobuf object)
      29             :      * @tparam T Build type
      30             :      * @tparam SV Stateless validator type
      31             :      */
      32             :     template <typename T, typename SV>
      33             :     class DEPRECATED TransportBuilder {
      34             :      public:
      35             :       TransportBuilder(const SV &validator = SV())
      36           4 :           : stateless_validator_(validator) {}
      37             : 
      38             :       /**
      39             :        * Builds result from transport object
      40             :        * @return value if transport object is valid and error message otherwise
      41             :        */
      42             :       iroha::expected::Result<T, std::string> build(
      43             :           typename T::TransportType transport) {
      44           4 :         auto result = T(transport);
      45           4 :         auto answer = stateless_validator_.validate(result);
      46           4 :         if (answer.hasErrors()) {
      47           2 :           return iroha::expected::makeError(answer.reason());
      48             :         }
      49           2 :         return iroha::expected::makeValue(T(std::move(transport)));
      50           4 :       }
      51             : 
      52             :      private:
      53             :       SV stateless_validator_;
      54             :     };
      55             : 
      56             :   }  // namespace proto
      57             : }  // namespace shared_model
      58             : #endif  // IROHA_TRANSPORT_BUILDER_HPP