Class: LogCourier::Client

Inherits:
Object
  • Object
show all
Defined in:
lib/log-courier/client.rb

Overview

Implementation of a single client connection

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ Client

Returns a new instance of Client.



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# File 'lib/log-courier/client.rb', line 95

def initialize(options = {})
  @options = {
    logger:       nil,
    transport:    'tls',
    spool_size:   1024,
    idle_timeout: 5,
    port:         nil,
    addresses:    [],
  }.merge!(options)

  @logger = @options[:logger]
  @logger['plugin'] = 'output/courier' unless @logger.nil?

  case @options[:transport]
  when 'tcp', 'tls'
    require 'log-courier/client_tcp'
    @client = ClientTcp.new(@options)
  else
    fail 'output/courier: \'transport\' must be tcp or tls'
  end

  fail 'output/courier: \'addresses\' must contain at least one address' if @options[:addresses].empty?
  fail 'output/courier: \'addresses\' only supports a single address at this time' if @options[:addresses].length > 1

  @event_queue = EventQueue.new @options[:spool_size]
  @pending_payloads = {}
  @first_payload = nil
  @last_payload = nil

  # Start the spooler which will collect events into chunks
  @send_ready = false
  @send_mutex = Mutex.new
  @send_cond = ConditionVariable.new
  @spooler_thread = Thread.new do
    run_spooler
  end

  # TODO: Make these configurable?
  @keepalive_timeout = 1800
  @network_timeout = 30

  # TODO: Make pending payload max configurable?
  @max_pending_payloads = 100

  @retry_payload = nil
  @received_payloads = Queue.new

  @pending_ping = false

  # Start the IO thread
  @io_control = EventQueue.new 1
  @io_thread = Thread.new do
    run_io
  end
end

Instance Method Details

#publish(event) ⇒ Object 



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# File 'lib/log-courier/client.rb', line 151

def publish(event)
  # Pass the event into the spooler
  @event_queue << event
  return
end

#shutdown(force = false) ⇒ Object 



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# File 'lib/log-courier/client.rb', line 157

def shutdown(force=false)
  if force
    # Raise a shutdown signal in the spooler and wait for it
    @spooler_thread.raise ShutdownSignal
    @spooler_thread.join
    @io_thread.raise ShutdownSignal
  else
    @event_queue.push nil
    @spooler_thread.join
    @io_control << ['!', nil]
  end
  @io_thread.join
  return @pending_payloads.length == 0
end