Source code for apache_beam.runners.interactive.caching.cacheable

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"""Module for dataclasses to hold metadata of cacheable PCollections in the user
code scope.

For internal use only; no backwards-compatibility guarantees.
"""

# pytype: skip-file

from __future__ import absolute_import

from dataclasses import dataclass

import apache_beam as beam
from apache_beam.runners.interactive.utils import obfuscate


[docs]@dataclass class Cacheable: pcoll_id: str var: str version: str pcoll: beam.pvalue.PCollection producer_version: str def __hash__(self): return hash(( self.pcoll_id, self.var, self.version, self.pcoll, self.producer_version))
[docs] def to_key(self): return CacheKey( self.var, self.version, self.producer_version, str(id(self.pcoll.pipeline)))
[docs]@dataclass class CacheKey: var: str version: str producer_version: str pipeline_id: str def __post_init__(self): # Normalize arbitrary variable name to a fixed length hex str. self.var = obfuscate(self.var)[:10]
[docs] @staticmethod def from_str(r): r_split = r.split('-') ck = CacheKey(*r_split) ck.var = r_split[0] return ck
def __repr__(self): return '-'.join( [self.var, self.version, self.producer_version, self.pipeline_id])