| /** |
| * 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. |
| */ |
| #include "pulsar/ProtobufNativeSchema.h" |
| |
| #include <google/protobuf/descriptor.pb.h> |
| |
| #include <stdexcept> |
| #include <vector> |
| |
| #include "Base64Utils.h" |
| |
| using google::protobuf::FileDescriptor; |
| using google::protobuf::FileDescriptorSet; |
| |
| namespace pulsar { |
| |
| void internalCollectFileDescriptors(const FileDescriptor* fileDescriptor, |
| FileDescriptorSet& fileDescriptorSet); |
| |
| SchemaInfo createProtobufNativeSchema(const google::protobuf::Descriptor* descriptor) { |
| if (!descriptor) { |
| throw std::invalid_argument("descriptor is null"); |
| } |
| |
| const auto fileDescriptor = descriptor->file(); |
| const std::string rootMessageTypeName = descriptor->full_name(); |
| const std::string rootFileDescriptorName = fileDescriptor->name(); |
| |
| FileDescriptorSet fileDescriptorSet; |
| internalCollectFileDescriptors(fileDescriptor, fileDescriptorSet); |
| |
| std::vector<char> bytes(fileDescriptorSet.ByteSizeLong()); |
| fileDescriptorSet.SerializeToArray(bytes.data(), bytes.size()); |
| |
| const std::string schemaJson = R"({"fileDescriptorSet":")" + base64::encode(bytes) + |
| R"(","rootMessageTypeName":")" + rootMessageTypeName + |
| R"(","rootFileDescriptorName":")" + rootFileDescriptorName + R"("})"; |
| |
| return SchemaInfo(SchemaType::PROTOBUF_NATIVE, "", schemaJson); |
| } |
| |
| void internalCollectFileDescriptors(const FileDescriptor* fileDescriptor, |
| FileDescriptorSet& fileDescriptorSet) { |
| fileDescriptor->CopyTo(fileDescriptorSet.add_file()); |
| for (int i = 0; i < fileDescriptor->dependency_count(); i++) { |
| // collect the file descriptors recursively |
| internalCollectFileDescriptors(fileDescriptor->dependency(i), fileDescriptorSet); |
| } |
| } |
| |
| } // namespace pulsar |