Server::Configuration::ServerFactoryContext& server) {

  const auto& statsd_sink = MessageUtil::downcastAndValidate<

      const envoy::extensions::stat_sinks::graphite_statsd::v3::GraphiteStatsdSink&>(

      config, server.messageValidationContext().staticValidationVisitor());

  switch (statsd_sink.statsd_specifier_case()) {

  case envoy::extensions::stat_sinks::graphite_statsd::v3::GraphiteStatsdSink::StatsdSpecifierCase::

      kAddress: {

    auto address_or_error = Network::Address::resolveProtoAddress(statsd_sink.address());

    RETURN_IF_NOT_OK_REF(address_or_error.status());

    Network::Address::InstanceConstSharedPtr address = address_or_error.value();

    ENVOY_LOG(debug, "statsd UDP ip address: {}", address->asString());

    absl::optional<uint64_t> max_bytes;

    if (statsd_sink.has_max_bytes_per_datagram()) {

      max_bytes = statsd_sink.max_bytes_per_datagram().value();

    }

    return std::make_unique<Common::Statsd::UdpStatsdSink>(server.threadLocal(), std::move(address),

                                                           true, statsd_sink.prefix(), max_bytes,

                                                           Common::Statsd::getGraphiteTagFormat());

  }

  }

ProtobufTypes::MessagePtr GraphiteStatsdSinkFactory::createEmptyConfigProto() {

  return std::make_unique<envoy::extensions::stat_sinks::graphite_statsd::v3::GraphiteStatsdSink>();

}

std::string GraphiteStatsdSinkFactory::name() const { return "envoy.stat_sinks.graphite_statsd"; }