Class: Watir::Grid

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

Overview

Extend Watir with a Grid class which implements a grid of browsers by connecting to a tuplespace and instatiating remote browser objects on nominated providers.

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(params = {}) ⇒ Grid 



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# File 'lib/watirgrid.rb', line 15

def initialize(params = {})
  @drb_server_host      = params[:drb_server_host]  || external_interface
  @drb_server_port      = params[:drb_server_port]  || 0
  @controller_uri       = params[:controller_uri]
  @ring_server_host     = params[:ring_server_host] || external_interface unless @controller_uri
  @ring_server_port     = params[:ring_server_port] || Rinda::Ring_PORT
  @renewer              = params[:renewer] || Rinda::SimpleRenewer.new
  logfile               = params[:logfile] || STDOUT
  @log                  = Logger.new(logfile, 'daily')
  @log.level            = params[:loglevel] || Logger::ERROR
  @log.datetime_format  = "%Y-%m-%d %H:%M:%S "
  @browser_type         = params[:browser_type]
  @browsers             = []
  @tuples               = []
  @providers            = []
end

Instance Attribute Details

#browsers ⇒ Object

Returns the value of attribute browsers.



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# File 'lib/watirgrid.rb', line 13

def browsers
  @browsers
end

#drb_server_uri ⇒ Object

Returns the value of attribute drb_server_uri.



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# File 'lib/watirgrid.rb', line 13

def drb_server_uri
  @drb_server_uri
end

#providers ⇒ Object

Returns the value of attribute providers.



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# File 'lib/watirgrid.rb', line 13

def providers
  @providers
end

#ring_server ⇒ Object

Returns the value of attribute ring_server.



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# File 'lib/watirgrid.rb', line 13

def ring_server
  @ring_server
end

#tuples ⇒ Object

Returns the value of attribute tuples.



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# File 'lib/watirgrid.rb', line 13

def tuples
  @tuples
end

Class Method Details

.control(params = {}, &block) ⇒ Object

This is a helper method to control a grid.



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# File 'lib/watirgrid.rb', line 76

def self.control(params = {}, &block)
  log  = Logger.new(STDOUT, 'daily')
  log.level = params[:loglevel] || Logger::ERROR
  grid = self.new(params)
  grid.start(:read_all => true)
  threads = []
  grid.browsers.each_with_index do |browser, index|
    sleep rampup(grid.size, params)
    threads << Thread.new do
      start = ::Time.now
      @browser = browser[:object].new_browser((params[:browser_type] || browser[:browser_type]))
      yield @browser, "#{index}"
    end
  end
  threads.each {|thread| thread.join}
end

Instance Method Details

#iterate(&block) ⇒ Object

Iterate with a block over each of the remote providers



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# File 'lib/watirgrid.rb', line 64

def iterate &block
  threads = []
  @providers.each do |browser|
    threads << Thread.new do
      yield browser
    end
  end
  threads.each {|thread| thread.join}
end

#release_tuples ⇒ Object

Write tuple back to tuplespace when finished using it



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# File 'lib/watirgrid.rb', line 49

def release_tuples
  @tuples.each { |tuple| @ring_server.write(tuple) }
end

#setup ⇒ Object

Instantiate new browser object on each of the remote providers



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# File 'lib/watirgrid.rb', line 55

def setup
  @browsers.each_with_index do |browser, index|
    sleep 0.15
    @providers[index] ||= browser[:object].new_browser((browser[:browser_type] || @browser_type))
  end
end

#size ⇒ Object

Return the size (quantity) of browsers started on the grid



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# File 'lib/watirgrid.rb', line 43

def size
  @browsers.size
end

#start(params = {}) ⇒ Object

Start required services



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# File 'lib/watirgrid.rb', line 34

def start(params = {})
  start_drb_server
  find_ring_server(params)
  get_tuples(params)
  setup if params[:initiate]
end