Class: Aspera::Fasp::AgentTrsdk

Inherits:
AgentBase show all
Defined in:
lib/aspera/fasp/agent_trsdk.rb

Constant Summary

Constants inherited from AgentBase

Aspera::Fasp::AgentBase::LISTENER_SESSION_ID_B, Aspera::Fasp::AgentBase::LISTENER_SESSION_ID_S

Instance Method Summary collapse

Methods inherited from AgentBase

#add_listener, validate_status_list

Constructor Details

#initialize(user_opts) ⇒ AgentTrsdk

options come from transfer_info



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# File 'lib/aspera/fasp/agent_trsdk.rb', line 19

def initialize(user_opts)
  raise "expecting Hash (or nil), but have #{user_opts.class}" unless user_opts.nil? || user_opts.is_a?(Hash)
  # set default options and override if specified
  options = DEFAULT_OPTIONS.dup
  user_opts&.each do |k, v|
    raise "Unknown local agent parameter: #{k}, expect one of #{DEFAULT_OPTIONS.keys.map(&:to_s).join(',')}" unless DEFAULT_OPTIONS.key?(k)
    options[k] = v
  end
  Log.log.debug{"options= #{options}"}
  super()
  # load and create SDK stub
  $LOAD_PATH.unshift(Installation.instance.sdk_ruby_folder)
  require 'transfer_services_pb'
  @transfer_client = Transfersdk::TransferService::Stub.new("#{options[:address]}:#{options[:port]}", :this_channel_is_insecure)
  begin
    get_info_response = @transfer_client.get_info(Transfersdk::InstanceInfoRequest.new)
    Log.log.debug{"daemon info: #{get_info_response}"}
  rescue GRPC::Unavailable
    Log.log.warn('no daemon present, starting daemon...')
    # location of daemon binary
    bin_folder = File.realpath(File.join(Installation.instance.sdk_ruby_folder, '..'))
    # config file and logs are created in same folder
    conf_file = File.join(bin_folder, 'sdk.conf')
    log_base = File.join(bin_folder, 'transferd')
    # create a config file for daemon
    config = {
      address:      options[:address],
      port:         options[:port],
      fasp_runtime: {
        use_embedded: false,
        user_defined: {
          bin: bin_folder,
          etc: bin_folder
        }
      }
    }
    File.write(conf_file, config.to_json)
    trd_pid = Process.spawn(Installation.instance.path(:transferd), '--config', conf_file, out: "#{log_base}.out", err: "#{log_base}.err")
    Process.detach(trd_pid)
    sleep(2.0)
    retry
  end
end

Instance Method Details

#start_transfer(transfer_spec, token_regenerator: nil) ⇒ Object 



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# File 'lib/aspera/fasp/agent_trsdk.rb', line 63

def start_transfer(transfer_spec, token_regenerator: nil)
  # create a transfer request
  transfer_request = Transfersdk::TransferRequest.new(
    transferType: Transfersdk::TransferType::FILE_REGULAR, # transfer type (file/stream)
    config: Transfersdk::TransferConfig.new, # transfer configuration
    transferSpec: transfer_spec.to_json) # transfer definition
  # send start transfer request to the transfer manager daemon
  start_transfer_response = @transfer_client.start_transfer(transfer_request)
  Log.log.debug{"start transfer response #{start_transfer_response}"}
  @transfer_id = start_transfer_response.transferId
  Log.log.debug{"transfer started with id #{@transfer_id}"}
end

#wait_for_transfers_completion ⇒ Object 



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# File 'lib/aspera/fasp/agent_trsdk.rb', line 76

def wait_for_transfers_completion
  started = false
  # monitor transfer status
  @transfer_client.monitor_transfers(Transfersdk::RegistrationRequest.new(transferId: [@transfer_id])) do |response|
    Log.dump(:response, response.to_h)
    # Log.log.debug{"#{response.sessionInfo.preTransferBytes} #{response.transferInfo.bytesTransferred}"}
    case response.status
    when :RUNNING
      if !started && !response.sessionInfo.preTransferBytes.eql?(0)
        notify_begin(@transfer_id, response.sessionInfo.preTransferBytes)
        started = true
      elsif started
        notify_progress(@transfer_id, response.transferInfo.bytesTransferred)
      end
    when :FAILED, :COMPLETED, :CANCELED
      notify_end(@transfer_id)
      raise Fasp::Error, JSON.parse(response.message)['Description'] unless :COMPLETED.eql?(response.status)
      break
    when :QUEUED, :UNKNOWN_STATUS, :PAUSED, :ORPHANED
      # ignore
    else
      Log.log.error{"unknown status#{response.status}"}
    end
  end
  # TODO: return status
  return []
end