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75 lines
2.6 KiB
75 lines
2.6 KiB
/* |
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* Copyright (C) 2019 The Android Open Source Project |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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#include <jsonpb/jsonpb.h> |
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#include <android-base/logging.h> |
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#include <google/protobuf/descriptor.h> |
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#include <google/protobuf/message.h> |
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#include <google/protobuf/util/json_util.h> |
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#include <google/protobuf/util/type_resolver_util.h> |
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namespace android { |
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namespace jsonpb { |
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using google::protobuf::DescriptorPool; |
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using google::protobuf::Message; |
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using google::protobuf::scoped_ptr; |
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using google::protobuf::util::NewTypeResolverForDescriptorPool; |
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using google::protobuf::util::TypeResolver; |
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static constexpr char kTypeUrlPrefix[] = "type.googleapis.com"; |
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std::string GetTypeUrl(const Message& message) { |
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return std::string(kTypeUrlPrefix) + "/" + message.GetDescriptor()->full_name(); |
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} |
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ErrorOr<std::string> MessageToJsonString(const Message& message) { |
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scoped_ptr<TypeResolver> resolver( |
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NewTypeResolverForDescriptorPool(kTypeUrlPrefix, DescriptorPool::generated_pool())); |
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google::protobuf::util::JsonOptions options; |
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options.add_whitespace = true; |
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std::string json; |
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auto status = BinaryToJsonString(resolver.get(), GetTypeUrl(message), |
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message.SerializeAsString(), &json, options); |
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if (!status.ok()) { |
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return MakeError<std::string>(status.error_message().as_string()); |
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} |
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return ErrorOr<std::string>(std::move(json)); |
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} |
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namespace internal { |
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ErrorOr<std::monostate> JsonStringToMessage(const std::string& content, Message* message) { |
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scoped_ptr<TypeResolver> resolver( |
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NewTypeResolverForDescriptorPool(kTypeUrlPrefix, DescriptorPool::generated_pool())); |
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std::string binary; |
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auto status = JsonToBinaryString(resolver.get(), GetTypeUrl(*message), content, &binary); |
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if (!status.ok()) { |
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return MakeError<std::monostate>(status.error_message().as_string()); |
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} |
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if (!message->ParseFromString(binary)) { |
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return MakeError<std::monostate>("Fail to parse."); |
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} |
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return ErrorOr<std::monostate>(); |
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} |
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} // namespace internal |
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} // namespace jsonpb |
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} // namespace android
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