Class: Pigeon::Launcher

Inherits:
Object
  • Object
show all
Defined in:
lib/pigeon/launcher.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(with_engine = Pigeon::Engine) {|_self| ... } ⇒ Launcher

Instance Methods =====================================================

Yields:

  • (_self)

Yield Parameters:



14
15
16
17
18
 
# File 'lib/pigeon/launcher.rb', line 14

def initialize(with_engine = Pigeon::Engine)
  @engine = with_engine
  
  yield(self) if (block_given?)
end

Class Method Details

.launch(engine = Pigeon::Engine, *arguments) ⇒ Object

Class Methods ========================================================



6
7
8
9
10
 
# File 'lib/pigeon/launcher.rb', line 6

def self.launch(engine = Pigeon::Engine, *arguments)
  arguments = %w[ start ] if (arguments.empty?)
  
  new(engine).handle_args(*arguments)
end

Instance Method Details

#handle_args(*args) ⇒ Object 



20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
 
# File 'lib/pigeon/launcher.rb', line 20

def handle_args(*args)
  op = OptionParser.new
  
  command = op.parse(*args.flatten).first

  begin
    case (command)
    when 'start'
      @engine.start(&method(:start))
    when 'stop'
      @engine.stop(&method(:stop))
    when 'restart'
      @engine.restart(&method(:restart))
    when 'status'
      @engine.status(&method(:status))
    when 'run'
      @engine.logger = Pigeon::Logger.new(STDOUT)

      @engine.run(&method(:run))
    else
      usage
    end
  rescue Interrupt
    shutdown(pid)
    exit(0)
  end
end

#restart(pid, old_pid) ⇒ Object 



73
74
75
76
77
78
79
 
# File 'lib/pigeon/launcher.rb', line 73

def restart(pid, old_pid)
  if (old_pid)
    puts "#{@engine.name} terminated. [%d]" % old_pid
  end

  puts "#{@engine.name} now running. [%d]" % pid
end

#run(pid) ⇒ Object 



48
49
50
51
 
# File 'lib/pigeon/launcher.rb', line 48

def run(pid)
  puts "#{@engine.name} now running. [%d]" % pid
  puts "Use ^C to terminate."
end

#shutdown(pid) ⇒ Object 



81
82
83
 
# File 'lib/pigeon/launcher.rb', line 81

def shutdown(pid)
  puts "Shutting down."
end

#start(pid) ⇒ Object 



53
54
55
 
# File 'lib/pigeon/launcher.rb', line 53

def start(pid)
  puts "#{@engine.name} now running. [%d]" % pid
end

#status(pid) ⇒ Object 



65
66
67
68
69
70
71
 
# File 'lib/pigeon/launcher.rb', line 65

def status(pid)
  if (pid)
    puts "#{@engine.name} running. [%d]" % pid
  else
    puts "#{@engine.name} is not running."
  end
end

#stop(pid) ⇒ Object 



57
58
59
60
61
62
63
 
# File 'lib/pigeon/launcher.rb', line 57

def stop(pid)
  if (pid)
    puts "#{@engine.name} shut down. [%d]" % pid
  else
    puts "#{@engine.name} was not running."
  end
end

#usage ⇒ Object 



85
86
87
 
# File 'lib/pigeon/launcher.rb', line 85

def usage
  puts "Usage: #{File.basename($0)} [start|stop|restart|status|run]"
end