class AMQ::Protocol::Method

def self.encode_body(body, channel, frame_size)
  return [] if body.empty?
  # 8 = 1 + 2 + 4 + 1
  # 1 byte of frame type
  # 2 bytes of channel number
  # 4 bytes of frame payload length
  # 1 byte of payload trailer FRAME_END byte
  limit        = frame_size - 8
  return [BodyFrame.new(body, channel)] if body.bytesize < limit
  # Otherwise String#slice on 1.9 will operate with code points,
  # and we need bytes. MK.
  body.force_encoding("ASCII-8BIT") if RUBY_VERSION.to_f >= 1.9 && body.encoding != Encoding::BINARY
  array = Array.new
  while body && !body.empty?
    payload, body = body[0, limit], body[limit, body.length - limit]
    array << BodyFrame.new(payload, channel)
  end
  array
end

def self.index
  @index
end

def self.inherited(base)
  if self == Protocol::Method
    @methods << base
  end
end

def self.instantiate(*args, &block)
  self.new(*args, &block)
end

def self.method_id
  @method_id
end

def self.methods
  @methods
end

def self.name
  @name
end

def self.split_headers(user_headers)
  properties, headers = {}, {}
  user_headers.each do |key, value|
    # key MUST be a symbol since symbols are not garbage-collected
    if Basic::PROPERTIES.include?(key)
      properties[key] = value
    else
      headers[key] = value
    end
  end
  return [properties, headers]
end