| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef __MESSAGES_HPP__ |
| #define __MESSAGES_HPP__ |
| |
| #include <google/protobuf/message.h> |
| |
| #include <google/protobuf/io/zero_copy_stream_impl.h> // For ArrayInputStream. |
| |
| #include <string> |
| |
| #include <stout/error.hpp> |
| #include <stout/try.hpp> |
| |
| #include "messages/messages.pb.h" |
| |
| namespace messages { |
| |
| template <typename T> |
| Try<T> deserialize(const std::string& value) |
| { |
| T t; |
| (void) static_cast<google::protobuf::Message*>(&t); |
| |
| google::protobuf::io::ArrayInputStream stream(value.data(), value.size()); |
| if (!t.ParseFromZeroCopyStream(&stream)) { |
| return Error("Failed to deserialize " + t.GetDescriptor()->full_name()); |
| } |
| return t; |
| } |
| |
| |
| template <typename T> |
| Try<std::string> serialize(const T& t) |
| { |
| (void) static_cast<const google::protobuf::Message*>(&t); |
| |
| std::string value; |
| if (!t.SerializeToString(&value)) { |
| return Error("Failed to serialize " + t.GetDescriptor()->full_name()); |
| } |
| return value; |
| } |
| |
| } // namespace messages { |
| |
| #endif // __MESSAGES_HPP__ |