Method: ContentServer.run_content_server

Defined in:
lib/content_server/content_server.rb

.run_content_server ⇒ Object 



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# File 'lib/content_server/content_server.rb', line 24

def run_content_server
  Log.info('Content server start')
  all_threads = []

  # create general tmp dir
  FileUtils.mkdir_p(Params['tmp_path']) unless File.directory?(Params['tmp_path'])
  # init tmp content data file
  $tmp_content_data_file = File.join(Params['tmp_path'], 'content.data')

  if Params['enable_monitoring']
    Log.info("Initializing monitoring of process params on port:%s", Params['process_monitoring_web_port'])
    $process_vars.set('server_name', 'content_server')
  end

  # # # # # # # # # # # #
  # Initialize/Start monitoring
  Log.info('Start monitoring following directories:')
  Params['monitoring_paths'].each {|path|
    Log.info("  Path:'%s'", path['path'])
  }

  # initial global local content data object
  $local_content_data_lock = Mutex.new
  $local_content_data = ContentData::ContentData.new
  $last_content_data_id = $local_content_data.unique_id

  # Read here for initial content data that exist from previous system run
  content_data_path = Params['local_content_data_path']
  if File.exists?(content_data_path) and !File.directory?(content_data_path)
    Log.info("reading initial content data that exist from previous system run from file:%s", content_data_path)
    $local_content_data.from_file(content_data_path)
    $last_content_data_id = $local_content_data.unique_id
  else
    if File.directory?(content_data_path)
      raise("Param:'local_content_data_path':'%s'cannot be a directory name", Params['local_content_data_path'])
    end
    # create directory if needed
    dir = File.dirname(Params['local_content_data_path'])
    FileUtils.mkdir_p(dir) unless File.exists?(dir)
  end

  Log.info('Init monitoring')
  fm = FileMonitoring::FileMonitoring.new()
  # Start monitoring and writing changes to queue
  all_threads << Thread.new do
    fm.monitor_files
  end

  # # # # # # # # # # # # # # # # # # # # # # # #
  # thread: Start dump local content data to file
  Log.debug1('Init thread: flush local content data to file')
  all_threads << Thread.new do
    FileUtils.mkdir_p(Params['tmp_path']) unless File.directory?(Params['tmp_path'])
    loop{
      sleep(Params['data_flush_delay'])
      ContentServer.flush_content_data
    }
  end

  # initialize remote connection
  remote_content_client = RemoteContentServer.new(Params['local_content_data_port'])
  all_threads << remote_content_client.tcp_thread

  # # # # # # # # # # # # # # # #
  # Start copying files on demand
  Log.debug1('Start copy data on demand')
  copy_files_events = Queue.new  # TODO(kolman): Remove this initialization and merge to FileCopyServer.
  copy_server = FileCopyServer.new(copy_files_events, Params['local_files_port'])
  all_threads.concat(copy_server.run())

  # # # # # # # # # # # # # # # # # # # # # # # #
  # Start process vars thread
  if Params['enable_monitoring']
    monitoring_info = MonitoringInfo::MonitoringInfo.new()
    all_threads << Thread.new do
      ContentServer.monitor_general_process_vars
    end
  end
  # Finalize server threads.
  all_threads.each { |t| t.abort_on_exception = true }
  all_threads.each { |t| t.join }
  # Should never reach this line.
end