def from_datetime(self, dt): """ generates a UUID for a given datetime :param dt: datetime :type dt: datetime :return: """ global _last_timestamp epoch = datetime(1970, 1, 1, tzinfo=dt.tzinfo) offset = epoch.tzinfo.utcoffset(epoch).total_seconds() if epoch.tzinfo else 0 timestamp = (dt - epoch).total_seconds() - offset node = None clock_seq = None nanoseconds = int(timestamp * 1e9) timestamp = int(nanoseconds // 100) + 0x01b21dd213814000L if clock_seq is None: import random clock_seq = random.randrange(1 << 14L) # instead of stable storage time_low = timestamp & 0xffffffffL time_mid = (timestamp >> 32L) & 0xffffL time_hi_version = (timestamp >> 48L) & 0x0fffL clock_seq_low = clock_seq & 0xffL clock_seq_hi_variant = (clock_seq >> 8L) & 0x3fL if node is None: node = getnode() return pyUUID(fields=(time_low, time_mid, time_hi_version, clock_seq_hi_variant, clock_seq_low, node), version=1)
def from_datetime(self, dt): """ generates a UUID for a given datetime :param dt: datetime :type dt: datetime :return: """ global _last_timestamp epoch = datetime(1970, 1, 1, tzinfo=dt.tzinfo) offset = epoch.tzinfo.utcoffset( epoch).total_seconds() if epoch.tzinfo else 0 timestamp = (dt - epoch).total_seconds() - offset node = None clock_seq = None nanoseconds = int(timestamp * 1e9) timestamp = int(nanoseconds // 100) + 0x01b21dd213814000 if clock_seq is None: import random clock_seq = random.randrange(1 << 14) # instead of stable storage time_low = timestamp & 0xffffffff time_mid = (timestamp >> 32) & 0xffff time_hi_version = (timestamp >> 48) & 0x0fff clock_seq_low = clock_seq & 0xff clock_seq_hi_variant = (clock_seq >> 8) & 0x3f if node is None: node = getnode() return pyUUID(fields=(time_low, time_mid, time_hi_version, clock_seq_hi_variant, clock_seq_low, node), version=1)
def generate_timeuuid(): """ code modified from: http://goo.gl/czeA4P """ dt = datetime.datetime.now() epoch = datetime.datetime(1970, 1, 1, tzinfo=dt.tzinfo) offset = epoch.tzinfo.utcoffset(epoch).total_seconds() \ if epoch.tzinfo else 0 timestamp = (dt - epoch).total_seconds() - offset node = None clock_seq = None nanoseconds = int(timestamp * 1e9) timestamp = int(nanoseconds // 100) + 0x01b21dd213814000 if clock_seq is None: import random clock_seq = random.randrange(1 << 14) # instead of stable storage time_low = timestamp & 0xffffffff time_mid = (timestamp >> 32) & 0xffff time_hi_version = (timestamp >> 48) & 0x0fff clock_seq_low = clock_seq & 0xff clock_seq_hi_variant = (clock_seq >> 8) & 0x3f if node is None: node = getnode() return pyUUID(fields=(time_low, time_mid, time_hi_version, clock_seq_hi_variant, clock_seq_low, node), version=1)
def generate_timeuuid(): """ code modified from: http://goo.gl/czeA4P """ dt = datetime.datetime.now() epoch = datetime.datetime(1970, 1, 1, tzinfo=dt.tzinfo) offset = epoch.tzinfo.utcoffset(epoch).total_seconds() \ if epoch.tzinfo else 0 timestamp = (dt - epoch).total_seconds() - offset node = None clock_seq = None nanoseconds = int(timestamp * 1e9) timestamp = int(nanoseconds // 100) + 0x01b21dd213814000 if clock_seq is None: import random clock_seq = random.randrange(1 << 14) # instead of stable storage time_low = timestamp & 0xffffffff time_mid = (timestamp >> 32) & 0xffff time_hi_version = (timestamp >> 48) & 0x0fff clock_seq_low = clock_seq & 0xff clock_seq_hi_variant = (clock_seq >> 8) & 0x3f if node is None: node = getnode() return pyUUID(fields=(time_low, time_mid, time_hi_version, clock_seq_hi_variant, clock_seq_low, node), version=1)
def __assert_uuid(self, data, attribs): if data is None: return self.validation_success(data) try: return self.validation_success(pyUUID(data)) except Exception: return self.validation_error(data, attribs['error'])