Class: Redom::Dispatcher

Inherits:
Object
  • Object
show all
Includes:
Utils
Defined in:
lib/redom/dispatcher.rb

Instance Method Summary collapse

Methods included from Utils

#_dispatcher, #_logger, dispatcher=, logger=

Constructor Details

#initialize(opts) ⇒ Dispatcher

Returns a new instance of Dispatcher.



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# File 'lib/redom/dispatcher.rb', line 5

def initialize(opts)
  if find_all_connection_classes.size == 0
    _logger.warn 'No Redom::Connection class defined.'
  end

  @opts = opts
  @conns = Hash.new
  @tasks = Hash.new
  @pool = ThreadPool.new(@opts)
  @pool.start
end

Instance Method Details

#connections(filter = nil) ⇒ Object 



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# File 'lib/redom/dispatcher.rb', line 89

def connections(filter = nil)
  if filter
    @conns.values.select { |conn|
      filter === conn
    }
  else
    @conns.values
  end
end

#delete_task(task_id) ⇒ Object 



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# File 'lib/redom/dispatcher.rb', line 85

def delete_task(task_id)
  @tasks.delete task_id
end

#on_close(ws) ⇒ Object 



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# File 'lib/redom/dispatcher.rb', line 71

def on_close(ws)
  @conns.each { |cid, conn|
    if cid =~ /^#{ws.__id__}@/
      _logger.debug "Connection closed. ID='#{ws.__id__}'"
      run_task(conn, :on_close)
      @conns.delete cid
    end
  }
end

#on_error(ws, err) ⇒ Object 



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# File 'lib/redom/dispatcher.rb', line 81

def on_error(ws, err)
  _logger.debug "Error occured. ID='#{ws.__id__}'"
end

#on_message(ws, msg) ⇒ Object 



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# File 'lib/redom/dispatcher.rb', line 31

def on_message(ws, msg)
  _logger.debug "Message received. ID='#{ws.__id__}'\n#{msg}"
  req = JSON.parse(msg)
  case req[IDX_REQUEST_TYPE]
  when REQ_HANDSHAKE
    if cls = @conn_cls[req[IDX_CONNECTION_CLASS]]
      conn = cls.new._init(ws, @opts)
      @conns["#{ws.__id__}@#{conn.__id__}"] = conn
      run_task(conn, :_on_open)
    else
      _logger.error "Undefined Redom::Connection class '#{req[IDX_CONNECTION_CLASS]}'."
    end
  when REQ_METHOD_INVOCATION
    if conn = @conns[req[IDX_CONNECTION_ID]]
      req[IDX_ARGUMENTS].map! { |arg|
        if Array === arg
          case arg[0]
          when TYPE_PROXY
              arg = Proxy.new(conn, [arg[1]])
          when TYPE_ARRAY
              arg = arg[1]
          end
        end
        arg
      }
      run_task(conn, req[IDX_METHOD_NAME], req[IDX_ARGUMENTS])
    else
      _logger.error "Connection missing. ID='#{req[IDX_CONNECTION_ID]}'"
    end
  when REQ_PROXY_RESULT
    if task = @tasks[req[IDX_TASK_ID]]
      task.run req[IDX_PROXY_RESULT]
    else
      _logger.error "Task missing. ID='#{req[IDX_TASK_ID]}'"
    end
  else
    _logger.error "Undefined request type '#{req[IDX_REQUEST_TYPE]}'."
  end
end

#on_open(ws) ⇒ Object 



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# File 'lib/redom/dispatcher.rb', line 27

def on_open(ws)
  _logger.debug "Connection established. ID='#{ws.__id__}'"
end

#run_task(conn, name, args = [], blck = nil) ⇒ Object 



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# File 'lib/redom/dispatcher.rb', line 21

def run_task(conn, name, args = [], blck = nil)
  task = Task.new(conn, @pool.worker, [name, args, blck])
  @tasks[task._id] = task
  task.run
end

#stop ⇒ Object 



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# File 'lib/redom/dispatcher.rb', line 17

def stop
  @pool.stop
end