parse_text_proto.h

#ifndef PRODUCTION_SUSHID_SAFEPOWER_AGENT_PARSE_TEXT_PROTO_H_
#define PRODUCTION_SUSHID_SAFEPOWER_AGENT_PARSE_TEXT_PROTO_H_

#include <string>
#include <utility>

#include "absl/log/log.h"
#include "absl/status/status.h"
#include "absl/status/statusor.h"
#include "absl/strings/string_view.h"
#include "google/protobuf/io/tokenizer.h"
#include "google/protobuf/text_format.h"

namespace safepower_agent {
namespace internal {
class ErrorCollector : public google::protobuf::io::ErrorCollector {
 public:
  explicit ErrorCollector(absl::string_view text_proto)
      : text_proto_(text_proto) {}
  ErrorCollector(const ErrorCollector&) = delete;
  ErrorCollector& operator=(const ErrorCollector&) = delete;

  void RecordError(int line, google::protobuf::io::ColumnNumber column,
                   absl::string_view message) override;
  void RecordWarning(int line, google::protobuf::io::ColumnNumber column,
                     absl::string_view message) override;
  std::string message() && { return std::move(message_); }

 private:
  absl::string_view text_proto_;
  std::string message_;
};
}  // namespace internal

template <typename Proto>
absl::StatusOr<Proto> ParseTextProto(absl::string_view text_proto) {
  google::protobuf::TextFormat::Parser parser;
  internal::ErrorCollector error_collector(text_proto);
  parser.RecordErrorsTo(&error_collector);
  Proto proto;
  if (!parser.ParseFromString(text_proto, &proto)) {
    return absl::InvalidArgumentError(std::move(error_collector).message());
  }
  return proto;
}
}  // namespace safepower_agent

#endif  // PRODUCTION_SUSHID_SAFEPOWER_AGENT_PARSE_TEXT_PROTO_H_