66 lines
2.1 KiB
Python
66 lines
2.1 KiB
Python
from datetime import datetime
|
|
from typing import Optional, TYPE_CHECKING
|
|
from uuid import uuid4
|
|
|
|
from redis import Redis
|
|
|
|
if TYPE_CHECKING:
|
|
from redis.client import Pipeline
|
|
|
|
from .job import Job
|
|
from .registry import BaseRegistry, StartedJobRegistry
|
|
from .utils import current_timestamp, now
|
|
|
|
|
|
def get_key(job_id: str) -> str:
|
|
return 'rq:executions:%s' % job_id
|
|
|
|
|
|
class Execution:
|
|
"""Class to represent an execution of a job."""
|
|
|
|
def __init__(self, id: str, job_id: str, connection: Redis, created_at: Optional[datetime] = None):
|
|
self.id = id
|
|
self.job_id = job_id
|
|
self.connection = connection
|
|
self.created_at = created_at if created_at else now()
|
|
|
|
@property
|
|
def composite_key(self):
|
|
return f'{self.job_id}:{self.id}'
|
|
|
|
@classmethod
|
|
def from_composite_key(cls, composite_key: str, connection: Redis) -> 'Execution':
|
|
job_id, id = composite_key.split(':')
|
|
return cls(id=id, job_id=job_id, connection=connection)
|
|
|
|
@classmethod
|
|
def create(cls, job: Job) -> 'Execution':
|
|
id = uuid4().hex
|
|
return cls(id=id, job_id=job.id, connection=job.connection, created_at=now())
|
|
|
|
|
|
class ExecutionRegistry(BaseRegistry):
|
|
"""Class to represent a registry of executions."""
|
|
key_template = 'rq:executions:{0}'
|
|
|
|
def __init__(self, job: Job):
|
|
self.connection = job.connection
|
|
self.job = job
|
|
|
|
def add(self, execution: Execution, pipeline: 'Pipeline', ttl=0, xx: bool = False) -> Any:
|
|
"""Register an execution to registry with expiry time of now + ttl, unless it's -1 which is set to +inf
|
|
|
|
Args:
|
|
execution (Execution): The Execution to add
|
|
ttl (int, optional): The time to live. Defaults to 0.
|
|
pipeline (Optional[Pipeline], optional): The Redis Pipeline. Defaults to None.
|
|
xx (bool, optional): .... Defaults to False.
|
|
|
|
Returns:
|
|
result (int): The ZADD command result
|
|
"""
|
|
score = ttl if ttl < 0 else current_timestamp() + ttl
|
|
if score == -1:
|
|
score = '+inf'
|
|
return pipeline.zadd(self.key, {execution.id: score}, xx=xx)
|