def _do_trans(self, vfrom, value, vto, state):
msg = 'transfer "{n}"->"{t}" by {v}'.format(n=vfrom, t=vto, v=value)
LOGGER.debug(msg)
if vfrom not in state or vto not in state:
raise InvalidTransaction(
'Verb is "trans" but vallet "{}" or vallet "{}" not in state'.
format(vfrom, vto))
curr = state[vfrom]
token = BgtTokenInfo()
token.ParseFromString(curr)
to = state[vto]
token1 = BgtTokenInfo()
token1.ParseFromString(to)
LOGGER.debug('_do_tans token[%s]=%s', token.group_code, value)
decd = token.decimals - value
if decd < MIN_VALUE:
raise InvalidTransaction(
'Verb is "trans", but result would be less than {}'.format(
MIN_VALUE))
incd = token1.decimals + value
if incd > MAX_VALUE:
raise InvalidTransaction(
'Verb is "inc", but result would be greater than {}'.format(
MAX_VALUE))
updated = {k: v for k, v in state.items()}
token.decimals = decd
updated[vfrom] = token.SerializeToString()
token1.decimals = incd
updated[vto] = token1.SerializeToString()
return updated
def _do_dec(self, name, value, to, state):
msg = 'Decrementing "{n}" by {v}'.format(n=name, v=value)
LOGGER.debug(msg)
if name not in state:
raise InvalidTransaction(
'Verb is "dec" but name "{}" not in state'.format(name))
curr = state[name]
token = BgtTokenInfo()
token.ParseFromString(curr)
LOGGER.debug('_do_dec token[%s]=%s', token.group_code, token.decimals,
value)
decd = token.decimals - value
if decd < MIN_VALUE:
raise InvalidTransaction(
'Verb is "dec", but result would be less than {}'.format(
MIN_VALUE))
updated = {k: v for k, v in state.items()}
token.decimals = decd
updated[name] = token.SerializeToString()
return updated
def _do_set(self,name, value, state):
msg = 'Setting "{n}" to {v}'.format(n=name, v=value)
LOGGER.debug(msg)
if name in state:
raise InvalidTransaction('Verb is "set", but already exists: Name: {n}, Value {v}'.format(n=name,v=state[name]))
updated = {k: v for k, v in state.items()}
#owner_key = self._context.sign('BGT_token'.encode(),self._private_key)
token = BgtTokenInfo(group_code = 'BGT_token',
owner_key = self._signer.sign('BGT_token'.encode()), #owner_key,
sign = self._public_key.as_hex(),
decimals = int(value)
)
updated[name] = token.SerializeToString()
LOGGER.debug('_do_set updated=%s',updated)
return updated