Python ValueAccumulator.from_bytes示例

示例#1

文件： test_value_accumulator.py 项目： hyperledger/indy-plenum

def test_value_accumulator_with_one_value_is_stored_as_single_float64():
    acc = ValueAccumulator()
    acc.add(4.2)

    data = acc.to_bytes()
    assert struct.unpack('d', data)[0] == 4.2

    restored_acc = ValueAccumulator.from_bytes(data)
    assert acc == restored_acc

示例#2

文件： test_value_accumulator.py 项目： hyperledger/indy-plenum

def test_value_accumulator_can_be_stored_as_bytes():
    values = [4.2, -1.3, 10.8]
    acc = ValueAccumulator(values)

    data = acc.to_bytes()
    assert isinstance(data, bytes)

    restored_acc = ValueAccumulator.from_bytes(data)
    assert acc == restored_acc

示例#3

文件： metrics_collector.py 项目： sami-abdul/indy-plenum

 def decode(key: bytes, value: bytes) -> Optional[MetricsEvent]:
     key = int.from_bytes(key, byteorder='big', signed=False)
     ts = datetime.utcfromtimestamp((key >> KvStoreMetricsFormat.seq_bits) / 1000000.0)
     name = int.from_bytes(value[:32], byteorder='big', signed=False)
     if name not in MetricsName.__members__.values():
         return None
     name = MetricsName(name)
     data = value[32:]
     if len(data) == 8:
         value = struct.unpack('d', data)[0]
     else:
         value = ValueAccumulator.from_bytes(data)
     return MetricsEvent(ts, name, value)

示例#4

文件： metrics_collector.py 项目： michaeldboyd/indy-plenum

 def decode(key: bytes, value: bytes) -> Optional[MetricsEvent]:
     key = int.from_bytes(key, byteorder='big', signed=False)
     ts = datetime.utcfromtimestamp((key >> KvStoreMetricsFormat.seq_bits) / 1000000.0)
     name = int.from_bytes(value[:32], byteorder='big', signed=False)
     if name not in MetricsName.__members__.values():
         return None
     name = MetricsName(name)
     data = value[32:]
     if len(data) == 8:
         value = struct.unpack('d', data)[0]
     else:
         value = ValueAccumulator.from_bytes(data)
     return MetricsEvent(ts, name, value)