Class: EventHub::Heartbeat

Inherits:
Object
  • Object
show all
Includes:
Helper
Defined in:
lib/eventhub/heartbeat.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Helper

#class_to_array, #duration, #format_string, #now_stamp

Constructor Details

#initialize(processor) ⇒ Heartbeat

Returns a new instance of Heartbeat.



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# File 'lib/eventhub/heartbeat.rb', line 8

def initialize(processor)
  @started_at = Time.now
  @processor = processor
  @statistics = @processor.statistics
end

Instance Attribute Details

#processor ⇒ Object (readonly)

Returns the value of attribute processor.



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# File 'lib/eventhub/heartbeat.rb', line 6

def processor
  @processor
end

#started_at ⇒ Object (readonly)

Returns the value of attribute started_at.



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# File 'lib/eventhub/heartbeat.rb', line 6

def started_at
  @started_at
end

#statistics ⇒ Object (readonly)

Returns the value of attribute statistics.



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# File 'lib/eventhub/heartbeat.rb', line 6

def statistics
  @statistics
end

Instance Method Details

#build_message(action = "running") ⇒ Object 



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# File 'lib/eventhub/heartbeat.rb', line 15

def build_message(action = "running")
  message = ::EventHub::Message.new
  message.origin_module_id  = processor.name
  message.origin_type       = "processor"
  message.origin_site_id    = 'global'

  message.process_name      = 'event_hub.heartbeat'

  now = Time.now

  # message structure needs more changes
  message.body = {
    version: processor.version,
    action:  action,
    pid:     Process.pid,
    process_name: 'event_hub.heartbeat',

    heartbeat: {
      started:                      now_stamp(started_at),
      stamp_last_beat:              now_stamp(now),
      uptime_in_ms:                 (now - started_at)*1000,
      heartbeat_cycle_in_ms:        processor.heartbeat_cycle_in_s * 1000,
      queues_consuming_from:        processor.listener_queues,
      queues_publishing_to:         ['event_hub.inbound'], # needs more dynamic in the future
      host:                         Socket.gethostname,
      addresses:                    addresses,
      messages: {
        total:                      statistics.messages_total,
        successful:                 statistics.messages_successful,
        unsuccessful:               statistics.messages_unsuccessful,
        average_size:               statistics.messages_average_size,
        average_process_time_in_ms: statistics.messages_average_process_time*1000,
        total_process_time_in_ms:   statistics.messages_total_process_time*1000
      }
    }
  }
  message
end