Class: Hoth::Providers::RackProvider

Inherits:
Object
  • Object
show all
Defined in:
lib/hoth/providers/rack_provider.rb

Instance Method Summary collapse

Constructor Details

#initialize(app) ⇒ RackProvider

Returns a new instance of RackProvider.



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# File 'lib/hoth/providers/rack_provider.rb', line 7

def initialize(app)
  @app = app
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/hoth/providers/rack_provider.rb', line 11

def call(env)
  Hoth::Logger.debug "env: #{env.inspect}"
  if env["PATH_INFO"] =~ /^\/execute/
    begin
      req = Rack::Request.new(env)

      service_name   = req.params["name"]
      service_params = req.params["params"]
      
      responsible_service = ServiceRegistry.locate_service(service_name)
      
      decoded_params = responsible_service.transport.encoder.decode(service_params)
      result = Hoth::Services.send(service_name, *decoded_params)
      
      encoded_result = responsible_service.transport.encoder.encode({"result" => result})
    
      [200, {'Content-Type' => responsible_service.transport.encoder.content_type, 'Content-Length' => "#{encoded_result.length}"}, [encoded_result]]
    rescue Exception => e
      Hoth::Logger.debug "e: #{e.message}"
      if responsible_service
        encoded_error = responsible_service.transport.encoder.encode({"error" => e})
        [500, {'Content-Type' => service.transport.encoder.content_type, 'Content-Length' => "#{encoded_error.length}"}, [encoded_error]]
      else
        plain_error = "An error occuered! (#{e.message})"
        [500, {'Content-Type' => "text/plain", 'Content-Length' => "#{plain_error.length}"}, [plain_error]]
      end
    end
  else
    @app.call(env)
  end
end