def _make_new_property_page(
state, timestamp, record_id,
property_name, value, page_number):
page_address = addressing.make_property_address(
record_id, property_name, page_number)
page_container = _get_container(state, page_address)
page = PropertyPage(
name=property_name,
record_id=record_id,
)
if value:
page.reported_values.extend([
_make_new_reported_value(
reporter_index=0,
timestamp=timestamp,
prop=value,
)
])
page_container.entries.extend([page])
page_container.entries.sort(key=lambda page: page.name)
_set_container(state, page_address, page_container)
def _make_new_property(state, record_id, property_name, data_type, signer):
property_address = addressing.make_property_address(
record_id, property_name, 0)
property_container = _get_container(state, property_address)
new_prop = Property(
name=property_name,
record_id=record_id,
data_type=data_type,
reporters=[
Property.Reporter(
public_key=signer,
authorized=True,
index=0,
)
],
current_page=1,
wrapped=False,
)
property_container.entries.extend([new_prop])
property_container.entries.sort(key=lambda prop: prop.name)
_set_container(state, property_address, property_container)
def revoke_reporter(self, record_id, reporter_id, properties):
payload = _make_sc_payload(action=SCPayload.REVOKE_REPORTER,
revoke_reporter=RevokeReporterAction(
record_id=record_id,
reporter_id=reporter_id,
properties=properties))
record_address = addressing.make_record_address(record_id)
proposal_address = addressing.make_proposal_address(
record_id, reporter_id)
property_addresses = [
addressing.make_property_address(record_id, property_name)
for property_name in properties
]
return self._create_transaction(
payload,
inputs=[
record_address,
proposal_address,
*property_addresses,
],
outputs=[
proposal_address,
*property_addresses,
],
)
def _get_property(state, record_id, property_name):
''' Return property, property_container, property_address '''
property_address = addressing.make_property_address(
record_id, property_name)
property_container = _get_container(state, property_address)
try:
prop = next(prop for prop in property_container.entries
if prop.name == property_name)
except StopIteration:
raise InvalidTransaction('Property does not exist')
return prop, property_container, property_address
def _update_properties(payload, signer, timestamp, state):
'''
* Check that the record is not final
* Check that the signer is an authorized reporter
* Check that the types are correct
'''
# Check that the record is not final
record_id = payload.record_id
record, _, _ = _get_record(state, record_id)
if record.final:
raise InvalidTransaction(
'Record is final')
updates = payload.properties
for update in updates:
name, data_type = update.name, update.data_type
property_address = addressing.make_property_address(record_id, name)
property_container = _get_container(state, property_address)
try:
prop = next(
prop
for prop in property_container.entries
if prop.name == name
)
except StopIteration:
raise InvalidTransaction(
'Record does not have property')
try:
reporter_index = next(
reporter.index
for reporter in prop.reporters
if reporter.public_key == signer and reporter.authorized
)
except StopIteration:
raise InvalidTransaction(
'Reporter is not authorized')
if data_type != prop.data_type:
raise InvalidTransaction(
'Update has wrong type')
page_number = prop.current_page
page_address = addressing.make_property_address(
record_id, name, page_number)
page_container = _get_container(state, page_address)
try:
page = next(
page
for page in page_container.entries
if page.name == name
)
except StopIteration:
raise InternalError(
'Property page does not exist')
reported_value = _make_new_reported_value(
reporter_index=reporter_index,
timestamp=timestamp,
prop=update,
)
page.reported_values.extend([reported_value])
page.reported_values.sort(
key=lambda val: (val.timestamp, val.reporter_index))
_set_container(state, page_address, page_container)
# increment page if needed
if len(page.reported_values) >= PROPERTY_PAGE_MAX_LENGTH:
new_page_number = (
page_number + 1
if page_number + 1 <= TOTAL_PROPERTY_PAGE_MAX
else 1
)
new_page_address = addressing.make_property_address(
record_id, name, new_page_number)
new_page_container = _get_container(state, new_page_address)
try:
new_page = next(
page
for page in new_page_container.entries
if page.name == name
)
del new_page.reported_values[:]
except StopIteration:
new_page = PropertyPage(
name=name,
record_id=record_id,
)
new_page_container.entries.extend([new_page])
_set_container(state, new_page_address, new_page_container)
# increment the property's page number (or wrap back to 1)
prop.current_page = new_page_number
if new_page_number == 1 and not prop.wrapped:
prop.wrapped = True
_set_container(state, property_address, property_container)
