def __init__(self, private=None, public=None):
self._factory = MessageFactory(
encoding='application/protobuf',
family_name=SUPPLYCHAIN_FAMILY_NAME,
family_version=SUPPLYCHAIN_VERSION,
namespace=[Addressing.agent_namespace(),
Addressing.application_namespace(),
Addressing.record_namespace()],
private=private,
public=public
)
def application_list(self):
result = self._send_get("state?address={}".format(
Addressing.application_namespace()))
try:
data = self._get_result_list(result)
out = []
for state_obj in data:
container = _decode_application_container(
_b64_dec(state_obj['data']))
out.extend(container.entries)
return out
except BaseException:
return None
def application_list(self):
result = self._send_get("state?address={}".format(
Addressing.application_namespace()))
try:
data = self._get_result_list(result)
out = []
for state_obj in data:
container = _decode_application_container(
_b64_dec(state_obj['data']))
out.extend(container.entries)
return out
except BaseException:
return None
def _get(state, addresses):
entries = state.get(addresses)
if entries:
out = {}
for e in entries:
addr = e.address
if e.data:
if addr.startswith(Addressing.agent_namespace()):
container = AgentContainer()
elif addr.startswith(Addressing.application_namespace()):
container = ApplicationContainer()
elif addr.startswith(Addressing.record_namespace()):
container = RecordContainer()
else:
raise InvalidTransaction("Unknown namespaces.")
else:
container = None
container.ParseFromString(e.data)
out[addr] = container
return out
return {}
def _get(state, addresses):
entries = state.get(addresses)
if entries:
out = {}
for e in entries:
addr = e.address
if e.data:
if addr.startswith(Addressing.agent_namespace()):
container = AgentContainer()
elif addr.startswith(Addressing.application_namespace()):
container = ApplicationContainer()
elif addr.startswith(Addressing.record_namespace()):
container = RecordContainer()
else:
raise InvalidTransaction("Unknown namespaces.")
else:
container = None
container.ParseFromString(e.data)
out[addr] = container
return out
return {}
StateDeltaUnsubscribeRequest
from sawtooth_sdk.protobuf.state_delta_pb2 import StateDeltaEvent
from sawtooth_sdk.protobuf.transaction_receipt_pb2 import StateChange
from sawtooth_sdk.protobuf.validator_pb2 import Message
from sawtooth_supplychain.common.addressing import Addressing
from sawtooth_supplychain.protobuf.agent_pb2 import AgentContainer
from sawtooth_supplychain.protobuf.application_pb2 import ApplicationContainer
from sawtooth_supplychain.protobuf.application_pb2 import Application
from sawtooth_supplychain.protobuf.record_pb2 import RecordContainer
LOGGER = logging.getLogger(__name__)
AGENT_NAMESPACE = Addressing.agent_namespace()
APPLICATION_NAMESPACE = Addressing.application_namespace()
RECORD_NAMESPACE = Addressing.record_namespace()
MAX_BLOCK_NUMBER = int(math.pow(2, 63)) - 1
class Subscriber:
"""A State Delta Subscriber for supplychain.
The Subscriber will send a StateDeltaSubscribeRequest, limited to the
state values within the namespaces for the supplychain family.
"""
def __init__(self, stream, db_connection):
self._stream = stream
self._db_connection = db_connection
def namespaces(self):
return [
Addressing.agent_namespace(),
Addressing.application_namespace(),
Addressing.record_namespace()
]
def namespaces(self):
return [Addressing.agent_namespace(),
Addressing.application_namespace(),
Addressing.record_namespace()]
