Module: MessagePack::Rpc::Server

Defined in:
lib/msgpack/rpc/server.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(klass) ⇒ Object 



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# File 'lib/msgpack/rpc/server.rb', line 17

def included(klass)
  m = Module.new {
    @@error = Class.new(StandardError) {
      def initialize(label, data)
        super("error ocurred on precedure \"#{label}\"")
        @data = data
      end

      attr_reader :data
    }

    @@deferred = Class.new {
      def initialize(id, klass)
        @id    = id
        @klass = klass
      end

      def resolve(result)
        packet = [1, @id, nil, result].to_msgpack
        @klass.instance_eval {send_data(packet)}

        class << self
          undef_method :resolve, :reject
        end
      end

      def reject(error)
        packet = [1, @id, error, nil].to_msgpack
        @klass.instance_eval {
          send_data(packet)

          if not error.kind_of?(Exception)
            label = caller_locations(3..3)[0].base_label
            error = @@error.new(label, error)
          end

          error.set_backtrace(caller(3..-1))
          error_occured(error)
        }

        class << self
          undef_method :resolve, :reject
        end
      end
    }

    klass.instance_variable_set(:@remote_public, [])
    klass.instance_variable_set(:@remote_async, [])
    klass.instance_variable_set(:@msgpack_options, {})

    def remote_public(meth = nil)
      @remote_public << meth if meth
      return @remote_public
    end

    def remote_async(meth = nil)
      @remote_async << meth if meth
      return @remote_async
    end

    def msgpack_options(opts = :none)
      if opts.nil? || opts.kind_of?(Hash)
        @msgpack_options = opts
      end

      return @msgpack_options
    end

    def new_unpacker
      return MessagePack::Unpacker.new(@msgpack_options || {})
    end
  }

  klass.extend(m)
end

Instance Method Details

#notify(meth, *args) ⇒ Object 



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# File 'lib/msgpack/rpc/server.rb', line 200

def notify(meth, *args)
  send_data([2, meth, args].to_msgpack)
end

#receive_dgram(data) ⇒ Object 



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# File 'lib/msgpack/rpc/server.rb', line 204

def receive_dgram(data)
  msg = MessagePack.unpack(data, self.class.msgpack_options)

  if not msg.kind_of?(Array)
    error_occured(RantimeError.new("not array message is received"))
  end

  eval_message(msg)
end

#receive_stream(data) ⇒ Object 



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# File 'lib/msgpack/rpc/server.rb', line 214

def receive_stream(data)
  begin
    unpacker.feed_each(data) {|msg| eval_message(msg)}

  rescue MessagePack::UnpackError => e
    unpacker.reset
    error_occured(e)

  rescue => e
    error_occured(e)
  end
end

#reset_unpacker ⇒ Object 



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# File 'lib/msgpack/rpc/server.rb', line 98

def reset_unpacker
  @unpacker = nil
end

#unpacker ⇒ Object 



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# File 'lib/msgpack/rpc/server.rb', line 94

def unpacker
  return (@unpacker ||= self.class.new_unpacker)
end