text: // Copyright 2019 Google LLC
  //
  // 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 "google/cloud/bigquery/connection_options.h"
  #include "google/cloud/bigquery/version.h"
  #include <grpcpp/grpcpp.h>
  #include <memory>
  #include <string>
  
  namespace google {
  namespace cloud {
  namespace bigquery {
  inline namespace BIGQUERY_CLIENT_NS {
  namespace internal {
  std::string BaseUserAgentPrefix() {
    // TODO(aryann): Add more info here.
    return "gcloud-cpp/" + VersionString();
  }
  }  // namespace internal
  
  ConnectionOptions::ConnectionOptions(
      std::shared_ptr<grpc::ChannelCredentials> credentials)
      : credentials_(std::move(credentials)),
        bigquerystorage_endpoint_("bigquerystorage.googleapis.com"),
        user_agent_prefix_(internal::BaseUserAgentPrefix()) {}
  
  ConnectionOptions::ConnectionOptions()
      : ConnectionOptions(grpc::GoogleDefaultCredentials()) {}
  
  grpc::ChannelArguments ConnectionOptions::CreateChannelArguments() const {
    grpc::ChannelArguments channel_arguments;
  
    channel_arguments.SetUserAgentPrefix(user_agent_prefix());
    return channel_arguments;
  }
  
  }  // namespace BIGQUERY_CLIENT_NS
  }  // namespace bigquery
  }  // namespace cloud
  }  // namespace google
  