def decode(msg):
buf = msg.next_frame().buf
size = FixSizedTypesCodec.decode_int(buf, 0)
unscaled_value = int_from_bytes(
buf[INT_SIZE_IN_BYTES:INT_SIZE_IN_BYTES + size])
scale = FixSizedTypesCodec.decode_int(buf, INT_SIZE_IN_BYTES + size)
sign = 0 if unscaled_value >= 0 else 1
return Decimal(
(sign, tuple(int(digit)
for digit in str(abs(unscaled_value))), -1 * scale))
def test_int_from_bytes(self, number, buf):
self.assertEqual(number, int_from_bytes(buf))
def read_big_integer(inp: ObjectDataInput) -> int:
length = inp.read_int()
result = bytearray(length)
inp.read_into(result, 0, length)
return int_from_bytes(result)