Class: Wakame::CommandQueue

Inherits:
Object
  • Object
show all
Includes:
Manager
Defined in:
lib/wakame/command_queue.rb

Defined Under Namespace

Classes: Adapter

Instance Attribute Summary

Attributes included from Manager

#master

Instance Method Summary collapse

Methods included from Manager

#reload, #start, #stop

Constructor Details

#initialize ⇒ CommandQueue

Returns a new instance of CommandQueue.



13
14
15
16
17
18
19
 
# File 'lib/wakame/command_queue.rb', line 13

def initialize()
  @queue = Queue.new
  @result_queue = Queue.new
  @statistics = {
    :total_command_count => 0
  }
end

Instance Method Details

#init ⇒ Object 



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
47
48
49
50
51
 
# File 'lib/wakame/command_queue.rb', line 21

def init
  @command_thread = Thread.new {
    Wakame.log.info("#{self.class}: Started command thread: #{Thread.current}")
    while cmd = @queue.deq
      begin
        unless cmd.kind_of?(Wakame::Command)
          Wakame.log.warn("#{self.class}: Incompatible type of object has been sent to ProcessCommand thread. #{cmd.class}")
          next
        end

        res = nil
        StatusDB.barrier {
          Wakame.log.debug("#{self.class}: Being processed the command: #{cmd.class}")
          res = cmd.run
          res
        }
      rescue => e
        Wakame.log.error(e)
        res = e
      ensure
        @result_queue.enq(res)
      end
    end
  }

  cmdsv_uri = URI.parse(Wakame.config.http_command_server_uri)

  @thin_server = Thin::Server.new(cmdsv_uri.host, cmdsv_uri.port, Adapter.new(self))
  @thin_server.threaded = true
  @thin_server.start
end

#send_cmd(cmd) ⇒ Object 



58
59
60
61
62
63
64
65
66
67
68
69
 
# File 'lib/wakame/command_queue.rb', line 58

def send_cmd(cmd)
  begin
    @queue.enq(cmd)

    ED.fire_event(Event::CommandReceived.new(cmd))

    return @result_queue.deq()
  rescue => e
    Wakame.log.error("#{self.class}:")
    Wakame.log.error(e)
  end
end

#terminate ⇒ Object 



53
54
55
56
 
# File 'lib/wakame/command_queue.rb', line 53

def terminate
  @thin_server.stop
  @command_thread.kill
end