Class: PushyDaemon::Shouter

Inherits:
BmcDaemonLib::MqEndpoint
  • Object
show all
Includes:
BmcDaemonLib::LoggerHelper, NewRelic::Agent::Instrumentation::ControllerInstrumentation
Defined in:
lib/pushyd/shouter.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(conn, config_shout) ⇒ Shouter

Returns a new instance of Shouter.



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# File 'lib/pushyd/shouter.rb', line 16

def initialize(conn, config_shout)
  # Init
  @shouter_keys = []
  @channel = nil
  @exchange = nil

  # Prepare logger
  log_pipe :shouter

  # Check config
  unless config_shout && config_shout.any? && config_shout.is_a?(Enumerable)
    log_error "prepare: empty [shout] section"
    return
  end

  # Extract information
  @shouter_keys = config_shout[:keys] if config_shout[:keys].is_a? Array
  @shouter_topic = config_shout[:topic]
  @shouter_period = config_shout[:period].to_i
  @shouter_period = 1 unless (@shouter_period > 0)

  fail PushyDaemon::EndpointTopicContext unless @shouter_topic

  # Create channel and exchange
  @channel = conn.create_channel
  @exchange = @channel.topic(@shouter_topic, durable: true, persistent: true)

  # Start working, now
  log_info "Shouter initialized, starting loop now", { topic: @shouter_topic, period: @shouter_period, keys: @shouter_keys }
end

Instance Attribute Details

#logger ⇒ Object

Returns the value of attribute logger.



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# File 'lib/pushyd/shouter.rb', line 14

def logger
  @logger
end

#table ⇒ Object

Class options



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# File 'lib/pushyd/shouter.rb', line 13

def table
  @table
end

Instance Method Details

#start_loop ⇒ Object 



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# File 'lib/pushyd/shouter.rb', line 47

def start_loop
  # Prepare exchange
  loop do
    # Generate payload
    payload = {time: Time.now.to_f, host: BmcDaemonLib::Conf.host}
    # payload = nil

    # Shout it !
    exchange_shout @exchange, payload
    sleep @shouter_period
  end
rescue AMQ::Protocol::EmptyResponseError => e
  fail PushyDaemon::ShouterResponseError, "#{e.class} (#{e.inspect})"
rescue Bunny::ChannelAlreadyClosed => e
  fail PushyDaemon::ShouterChannelClosed, "#{e.class} (#{e.inspect})"
rescue Bunny::PreconditionFailed => e
  fail PushyDaemon::ShouterPreconditionFailed, "#{e.class} (#{e.inspect})"
rescue Interrupt => e
  @channel.close
  fail PushyDaemon::ShouterInterrupted, e.class
end