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Versions: 8
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Contents
require 'optparse'
class Pigeon::Launcher
# == Class Methods ========================================================
def self.launch(engine = Pigeon::Engine, *arguments)
arguments = %w[ start ] if (arguments.empty?)
new(engine).handle_args(*arguments)
end
# == Instance Methods =====================================================
def initialize(with_engine = Pigeon::Engine)
@engine = with_engine
yield(self) if (block_given?)
end
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
def run(pid)
puts "#{@engine.name} now running. [%d]" % pid
puts "Use ^C to terminate."
end
def start(pid)
puts "#{@engine.name} now running. [%d]" % pid
end
def stop(pid)
if (pid)
puts "#{@engine.name} shut down. [%d]" % pid
else
puts "#{@engine.name} was not running."
end
end
def status(pid)
if (pid)
puts "#{@engine.name} running. [%d]" % pid
else
puts "#{@engine.name} is not running."
end
end
def restart(pid, old_pid)
if (old_pid)
puts "#{@engine.name} terminated. [%d]" % old_pid
end
puts "#{@engine.name} now running. [%d]" % pid
end
def shutdown(pid)
puts "Shutting down."
end
def usage
puts "Usage: #{File.basename($0)} [start|stop|restart|status|run]"
end
end
Version data entries
8 entries across 8 versions & 1 rubygems