Module: Philiprehberger::IdGen::Snowflake

Defined in:
lib/philiprehberger/id_gen/snowflake.rb

Defined Under Namespace

Classes: Generator

Constant Summary collapse

CUSTOM_EPOCH =

2020-01-01 00:00:00 UTC in milliseconds

1_577_836_800_000
TIMESTAMP_BITS = 
41
WORKER_ID_BITS = 
10
SEQUENCE_BITS = 
12
MAX_WORKER_ID = 
(1 << WORKER_ID_BITS) - 1
MAX_SEQUENCE = 
(1 << SEQUENCE_BITS) - 1
WORKER_ID_SHIFT = 
SEQUENCE_BITS
TIMESTAMP_SHIFT = 
WORKER_ID_BITS + SEQUENCE_BITS

Class Method Summary collapse

Class Method Details

.timestamp(id, epoch_ms: CUSTOM_EPOCH) ⇒ Object 



63
64
65
66
 
# File 'lib/philiprehberger/id_gen/snowflake.rb', line 63

def timestamp(id, epoch_ms: CUSTOM_EPOCH)
  timestamp_ms = (id >> TIMESTAMP_SHIFT) + epoch_ms
  Time.at(timestamp_ms / 1000.0)
end