Class: Bullring::RhinoServer

Inherits:
Object
  • Object
show all
Defined in:
lib/bullring/workers/rhino_server.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(host, registry_port) ⇒ RhinoServer

Returns a new instance of RhinoServer.



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# File 'lib/bullring/workers/rhino_server.rb', line 21

def initialize(host, registry_port)
  @library_cache = {}
  
  @default_options = { :run_is_sealed => false,
                       :run_is_restrictable => true,
                       :run_timeout_secs => 0.5 }

  # Connect to the server registry
  @server_registry = ServerRegistry.new(host,registry_port, nil)

  # Start up as a DRb server (get the port from the registry)
  port = @server_registry.next_server_port
  uri = "druby://#{host}:#{port}"
  DRb.start_service uri, self

  # Put ourselves on the registry
  @server_registry.register_server(uri)

  # Keep an eye on the registry, if it dies, we should die
  Thread.new do
    while (true) do
      sleep(5)
      begin 
        @server_registry.test!
      rescue
        DRb.stop_service
        Thread.main.exit
      end
    end
  end
  
  DRb.thread.join
end

Class Method Details

.start(host, registry_port) ⇒ Object 



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# File 'lib/bullring/workers/rhino_server.rb', line 108

def self.start(host, registry_port)
  RhinoServer.new(host, registry_port)
end

Instance Method Details

#alive? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/bullring/workers/rhino_server.rb', line 99

def alive?
  true
end

#check(script, options) ⇒ Object 



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# File 'lib/bullring/workers/rhino_server.rb', line 69

def check(script, options)
  Rhino::Context.open do |context|
    context_wrapper {context.load(File.expand_path("../../js/jslint.min.js", __FILE__))}
    
    call = Bullring::Helper::jslint_call(script)
    
    duration, result = context_wrapper {context.eval(call)}
    
    result = result.collect{|obj| obj.respond_to?(:to_h) ? obj.to_h : obj}
  end      
end

#get_library(name) ⇒ Object 



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# File 'lib/bullring/workers/rhino_server.rb', line 63

def get_library(name)
  # If try to use the cache, tests that change libraries fail
  #   @library_cache[name] ||= fetch_library(name)
  fetch_library(name)
end

#kill ⇒ Object 



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# File 'lib/bullring/workers/rhino_server.rb', line 103

def kill
  DRb.stop_service
  exit
end

#logger ⇒ Object 



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# File 'lib/bullring/workers/rhino_server.rb', line 59

def logger
  @logger ||= Bullring::DummyLogger.new
end

#logger=(logger) ⇒ Object 



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# File 'lib/bullring/workers/rhino_server.rb', line 55

def logger=(logger)
  @logger = logger
end

#run(script, options) ⇒ Object 



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# File 'lib/bullring/workers/rhino_server.rb', line 81

def run(script, options)
  # Don't do a merge b/c jruby and ruby don't play nicely for some reason
  @default_options.each{|k,v| options[k] = v}
  
  Rhino::Context.open(:sealed => options[:run_is_sealed], :restrictable => options[:run_is_restrictable]) do |context|

    (options['library_names'] || []).each do |library_name|
      library_script = get_library(library_name)
      context_wrapper {context.eval(library_script)}      
    end
      
    context.timeout_limit = options[:run_timeout_secs]
    
    duration, result = context_wrapper {context.eval(script)}      
    result.respond_to?(:to_h) ? result.to_h : result      
  end      
end