cpp/velox/tests/JsonToProtoConverter.cc

/*
 * 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 "utils//JsonToProtoConverter.h"
#include <fstream>
#include <sstream>
#include "velox/common/base/Exceptions.h"

void JsonToProtoConverter::readFromFile(const std::string& msgPath, google::protobuf::Message& msg) {
  // Read json file and resume the Substrait plan.
  std::ifstream msgJson(msgPath);
  VELOX_CHECK(!msgJson.fail(), "Failed to open file: {}. {}", msgPath, strerror(errno));
  std::stringstream buffer;
  buffer << msgJson.rdbuf();
  std::string msgData = buffer.str();
  auto status = google::protobuf::util::JsonStringToMessage(msgData, &msg);
  VELOX_CHECK(
      status.ok(),
      "Failed to parse Substrait JSON: {} {}",
      static_cast<int8_t>(status.code()),
      status.message().ToString());
}