Class: Selenium::WebDriver::PhantomJS::Service Private

Inherits:
Object
  • Object
show all
Defined in:
lib/selenium/webdriver/phantomjs/service.rb

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

Constant Summary collapse

START_TIMEOUT =

This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future. 

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STOP_TIMEOUT =

This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future. 

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DEFAULT_PORT =

This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future. 

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MISSING_TEXT =

This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future. 

"Unable to find phantomjs executable."

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(executable_path, port) ⇒ Service

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns a new instance of Service.



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# File 'lib/selenium/webdriver/phantomjs/service.rb', line 31

def initialize(executable_path, port)
  @uri        = URI.parse "http://#{Platform.localhost}:#{port}"
  @executable = executable_path
end

Instance Attribute Details

#uri ⇒ Object (readonly)

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/selenium/webdriver/phantomjs/service.rb', line 15

def uri
  @uri
end

Class Method Details

.default_service(port = nil) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/selenium/webdriver/phantomjs/service.rb', line 27

def self.default_service(port = nil)
  new executable_path, port || PortProber.above(DEFAULT_PORT)
end

.executable_path ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/selenium/webdriver/phantomjs/service.rb', line 17

def self.executable_path
  @executable_path ||= (
    path = PhantomJS.path
    path or raise Error::WebDriverError, MISSING_TEXT
    Platform.assert_executable path

    path
  )
end

Instance Method Details

#create_process(args) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/selenium/webdriver/phantomjs/service.rb', line 73

def create_process(args)
  server_command = [@executable, "--webdriver=#{@uri.port}", *args]
  process = ChildProcess.build(*server_command.compact)

  if $DEBUG == true
    process.io.inherit!
  elsif Platform.jruby?
    # apparently we need to read the output for phantomjs to work on jruby
    process.io.stdout = process.io.stderr = File.new(Platform.null_device, 'w')
  end

  process
end

#start(args = []) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/selenium/webdriver/phantomjs/service.rb', line 36

def start(args = [])
  if @process && @process.alive?
    raise "already started: #{@uri.inspect} #{@executable.inspect}"
  end

  @process = create_process(args)
  @process.start

  socket_poller = SocketPoller.new Platform.localhost, @uri.port, START_TIMEOUT

  unless socket_poller.connected?
    raise Error::WebDriverError, "unable to connect to phantomjs @ #{@uri} after #{START_TIMEOUT} seconds"
  end

  Platform.exit_hook { stop } # make sure we don't leave the server running
end

#stop ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/selenium/webdriver/phantomjs/service.rb', line 53

def stop
  return if @process.nil? || @process.exited?

  Net::HTTP.start(uri.host, uri.port) do |http|
    http.open_timeout = STOP_TIMEOUT / 2
    http.read_timeout = STOP_TIMEOUT / 2

    http.get("/shutdown")
  end

  @process.poll_for_exit STOP_TIMEOUT
rescue ChildProcess::TimeoutError
  # ok, force quit
  @process.stop STOP_TIMEOUT

  if Platform.jruby? && !$DEBUG
    @process.io.close rescue nil
  end
end