You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
75 lines
2.5 KiB
75 lines
2.5 KiB
/*
|
|
* Copyright (C) 2019 The Android Open Source Project
|
|
*
|
|
* Licensed 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.
|
|
*/
|
|
|
|
#include <jsonpb/jsonpb.h>
|
|
|
|
#include <android-base/logging.h>
|
|
#include <google/protobuf/descriptor.h>
|
|
#include <google/protobuf/message.h>
|
|
#include <google/protobuf/util/json_util.h>
|
|
#include <google/protobuf/util/type_resolver_util.h>
|
|
|
|
namespace android {
|
|
namespace jsonpb {
|
|
|
|
using google::protobuf::DescriptorPool;
|
|
using google::protobuf::Message;
|
|
using google::protobuf::util::NewTypeResolverForDescriptorPool;
|
|
using google::protobuf::util::TypeResolver;
|
|
|
|
static constexpr char kTypeUrlPrefix[] = "type.googleapis.com";
|
|
|
|
std::string GetTypeUrl(const Message& message) {
|
|
return std::string(kTypeUrlPrefix) + "/" + message.GetDescriptor()->full_name();
|
|
}
|
|
|
|
ErrorOr<std::string> MessageToJsonString(const Message& message) {
|
|
std::unique_ptr<TypeResolver> resolver(
|
|
NewTypeResolverForDescriptorPool(kTypeUrlPrefix, DescriptorPool::generated_pool()));
|
|
|
|
google::protobuf::util::JsonOptions options;
|
|
options.add_whitespace = true;
|
|
|
|
std::string json;
|
|
auto status = BinaryToJsonString(resolver.get(), GetTypeUrl(message), message.SerializeAsString(),
|
|
&json, options);
|
|
|
|
if (!status.ok()) {
|
|
return MakeError<std::string>(status.error_message().as_string());
|
|
}
|
|
return ErrorOr<std::string>(std::move(json));
|
|
}
|
|
|
|
namespace internal {
|
|
ErrorOr<std::monostate> JsonStringToMessage(const std::string& content, Message* message) {
|
|
std::unique_ptr<TypeResolver> resolver(
|
|
NewTypeResolverForDescriptorPool(kTypeUrlPrefix, DescriptorPool::generated_pool()));
|
|
|
|
std::string binary;
|
|
auto status = JsonToBinaryString(resolver.get(), GetTypeUrl(*message), content, &binary);
|
|
if (!status.ok()) {
|
|
return MakeError<std::monostate>(status.error_message().as_string());
|
|
}
|
|
if (!message->ParseFromString(binary)) {
|
|
return MakeError<std::monostate>("Fail to parse.");
|
|
}
|
|
return ErrorOr<std::monostate>();
|
|
}
|
|
} // namespace internal
|
|
|
|
} // namespace jsonpb
|
|
} // namespace android
|