Class: Raad::Runner

Inherits:
Object
  • Object
show all
Includes:
Daemonizable
Defined in:
lib/raad/runner.rb

Constant Summary collapse

SECOND = 
1
STOP_TIMEOUT = 
60 * SECOND

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Daemonizable

#daemonize, #force_kill_and_remove_pid_file, #pid, #post_fork_setup, #read_pid_file, #remove_pid_file, #remove_stale_pid_file, #send_signal, #write_pid_file

Constructor Details

#initialize(argv, service) ⇒ Runner

Create a new Runner

Parameters:

  • argv (Array) —

    command line arguments

  • service (Object) —

    service to execute



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# File 'lib/raad/runner.rb', line 16

def initialize(argv, service)
  @argv = argv.dup # lets keep a copy for jruby double-launch
  create_options_parser(service).parse!(argv)

  # start/stop 
  @options[:command] = argv[0].to_s.downcase
  unless ['start', 'stop', 'post_fork'].include?(options[:command])
    puts(">> start|stop command is required")
    exit!(false)
  end

  @service = service
  @service_name = nil
  @logger_options = nil
  @pid_file = nil

  @stop_signaled = false
end

Instance Attribute Details

#options ⇒ Object

Returns the value of attribute options.



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# File 'lib/raad/runner.rb', line 10

def options
  @options
end

#pid_file ⇒ Object

Returns the value of attribute pid_file.



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# File 'lib/raad/runner.rb', line 10

def pid_file
  @pid_file
end

#service ⇒ Object

Returns the value of attribute service.



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# File 'lib/raad/runner.rb', line 10

def service
  @service
end

Instance Method Details

#run ⇒ Object 



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# File 'lib/raad/runner.rb', line 35

def run
  # first load config if present
  Configuration.load(options[:config] || File.expand_path("./config/#{default_service_name}.rb"))

  # settings which depends on configuration
  @service_name = options[:name] || Configuration.daemon_name || default_service_name

  unless options[:log_file]
    options[:log_file] = (options[:daemonize] ? File.expand_path("#{@service_name}.log") : nil)
  end
  unless options[:log_stdout]
    options[:log_stdout] = !options[:daemonize]
  end
  @logger_options = {
    :file => options.delete(:log_file) || Configuration.log_file,
    :stdout => options.delete(:log_stdout) || Configuration.log_stdout,
    :verbose => options.delete(:verbose) || Configuration.verbose,
    :pattern => options.delete(:log_pattern) || Configuration.log_pattern,
  }
  @pid_file = options.delete(:pid_file) || "./#{@service_name}.pid"
  @stop_timeout = (options.delete(:stop_timeout) || Configuration.stop_timeout || STOP_TIMEOUT).to_i

  # check for stop command, @pid_file must be set
  if options[:command] == 'stop'
    puts(">> Raad service wrapper v#{VERSION} stopping")
    # first send the TERM signal which will invoke the daemon wait_or_will method which will timeout after @stop_timeout
    # if still not stopped afer @stop_timeout + 2, KILL -9 will be sent.
    success = send_signal('TERM', @stop_timeout + 2) 
    exit(success)
  end

  # setup logging
  Logger.setup(@logger_options)
  Logger.level = Configuration.log_level if Configuration.log_level

  Dir.chdir(File.expand_path(File.dirname("./"))) unless Raad.test?

  if options[:command] == 'post_fork'
    # we've been spawned and re executed, finish setup
    post_fork_setup(@service_name, options[:redirect])
    run_service
  else
    puts(">> Raad service wrapper v#{VERSION} starting")
    options[:daemonize] ? daemonize(@argv, @service_name, options[:redirect]) {run_service} : run_service
  end
end