def address(self):
"""
Returns the (unique) address this GGO has on the ledger.
:rtype: str
"""
return ols.generate_address(ols.AddressPrefix.GGO, self.key.PublicKey())
def create_child(self, amount, user):
"""
Creates a new child Ggo.
:param int amount:
:param User user:
:rtype: Ggo
"""
assert 0 < amount <= self.amount
key_index = GgoIndexSequence.get_next(user.id,
Session.object_session(self))
key = KeyGenerator.get_key_for_traded_ggo_at_index(user, key_index)
address = ols.generate_address(ols.AddressPrefix.GGO, key.PublicKey())
return Ggo(
user_id=user.id,
parent_id=self.id,
address=address,
key_index=key_index,
issue_time=self.issue_time,
expire_time=self.expire_time,
sector=self.sector,
begin=self.begin,
end=self.end,
technology_code=self.technology_code,
fuel_code=self.fuel_code,
emissions=self.emissions,
amount=amount,
issued=False,
stored=False,
retired=False,
synchronized=False,
locked=False,
)
def address(self):
"""
Returns the (unique) address this measurement has on the ledger.
:rtype: str
"""
return ols.generate_address(ols.AddressPrefix.MEASUREMENT,
self.key.PublicKey())
def settlement_address(self):
"""
Returns the (unique) address on the ledger to put settlements when
retiring GGOs to this measurement.
:rtype: str
"""
return ols.generate_address(ols.AddressPrefix.SETTLEMENT,
self.key.PublicKey())
def build_ledger_request(self):
"""
:rtype: ols.RetireGGORequest
"""
measurement_key = KeyGenerator.get_key_for_measurement(
self.meteringpoint, self.begin)
settlement_address = ols.generate_address(
ols.AddressPrefix.SETTLEMENT, measurement_key.PublicKey())
return ols.RetireGGORequest(
settlement_address=settlement_address,
measurement_address=self.measurement_address,
measurement_private_key=measurement_key.PrivateKey(),
parts=[
ols.RetireGGOPart(
address=ols.generate_address(ols.AddressPrefix.GGO, self.parent_ggo.key.PublicKey()),
private_key=self.parent_ggo.key.PrivateKey(),
)
],
)