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# encoding: utf-8
require "amqp/exceptions"
module AMQP
module Framing
module String
class Frame < AMQ::Protocol::Frame
ENCODINGS_SUPPORTED = defined? Encoding
HEADER_SLICE = (0..6).freeze
DATA_SLICE = (7..-1).freeze
PAYLOAD_SLICE = (0..-2).freeze
def self.decode(string)
header = string[HEADER_SLICE]
type, channel, size = self.decode_header(header)
data = string[DATA_SLICE]
payload = data[PAYLOAD_SLICE]
frame_end = data[-1, 1]
frame_end.force_encoding(AMQ::Protocol::Frame::FINAL_OCTET.encoding) if ENCODINGS_SUPPORTED
# 1) the size is miscalculated
if payload.bytesize != size
raise BadLengthError.new(size, payload.bytesize)
end
# 2) the size is OK, but the string doesn't end with FINAL_OCTET
raise NoFinalOctetError.new if frame_end != AMQ::Protocol::Frame::FINAL_OCTET
self.new(type, payload, channel)
end # self.from
end # Frame
end # String
end # Framing
end # AMQP
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