mirror of
https://git.selfprivacy.org/SelfPrivacy/selfprivacy-rest-api.git
synced 2024-11-16 15:43:16 +00:00
299 lines
8.2 KiB
Python
299 lines
8.2 KiB
Python
"""
|
|
Jobs controller. It handles the jobs that are created by the user.
|
|
This is a singleton class holding the jobs list.
|
|
Jobs can be added and removed.
|
|
A single job can be updated.
|
|
A job is a dictionary with the following keys:
|
|
- id: unique identifier of the job
|
|
- name: name of the job
|
|
- description: description of the job
|
|
- status: status of the job
|
|
- created_at: date of creation of the job
|
|
- updated_at: date of last update of the job
|
|
- finished_at: date of finish of the job
|
|
- error: error message if the job failed
|
|
- result: result of the job
|
|
"""
|
|
import typing
|
|
import datetime
|
|
from uuid import UUID
|
|
import uuid
|
|
from enum import Enum
|
|
|
|
from pydantic import BaseModel
|
|
|
|
from selfprivacy_api.utils.redis_pool import RedisPool
|
|
|
|
JOB_EXPIRATION_SECONDS = 10 * 24 * 60 * 60 # ten days
|
|
|
|
STATUS_LOGS_PREFIX = "jobs_logs:status:"
|
|
PROGRESS_LOGS_PREFIX = "jobs_logs:progress:"
|
|
|
|
|
|
class JobStatus(str, Enum):
|
|
"""
|
|
Status of a job.
|
|
"""
|
|
|
|
CREATED = "CREATED"
|
|
RUNNING = "RUNNING"
|
|
FINISHED = "FINISHED"
|
|
ERROR = "ERROR"
|
|
|
|
|
|
class Job(BaseModel):
|
|
"""
|
|
Job class.
|
|
"""
|
|
|
|
uid: UUID
|
|
type_id: str
|
|
name: str
|
|
description: str
|
|
status: JobStatus
|
|
status_text: typing.Optional[str]
|
|
progress: typing.Optional[int]
|
|
created_at: datetime.datetime
|
|
updated_at: datetime.datetime
|
|
finished_at: typing.Optional[datetime.datetime]
|
|
error: typing.Optional[str]
|
|
result: typing.Optional[str]
|
|
|
|
|
|
class Jobs:
|
|
"""
|
|
Jobs class.
|
|
"""
|
|
|
|
@staticmethod
|
|
def reset() -> None:
|
|
"""
|
|
Reset the jobs list.
|
|
"""
|
|
jobs = Jobs.get_jobs()
|
|
for job in jobs:
|
|
Jobs.remove(job)
|
|
Jobs.reset_logs()
|
|
|
|
@staticmethod
|
|
def add(
|
|
name: str,
|
|
type_id: str,
|
|
description: str,
|
|
status: JobStatus = JobStatus.CREATED,
|
|
status_text: str = "",
|
|
progress: int = 0,
|
|
) -> Job:
|
|
"""
|
|
Add a job to the jobs list.
|
|
"""
|
|
job = Job(
|
|
uid=uuid.uuid4(),
|
|
name=name,
|
|
type_id=type_id,
|
|
description=description,
|
|
status=status,
|
|
status_text=status_text,
|
|
progress=progress,
|
|
created_at=datetime.datetime.now(),
|
|
updated_at=datetime.datetime.now(),
|
|
finished_at=None,
|
|
error=None,
|
|
result=None,
|
|
)
|
|
redis = RedisPool().get_connection()
|
|
_store_job_as_hash(redis, _redis_key_from_uuid(job.uid), job)
|
|
return job
|
|
|
|
@staticmethod
|
|
def remove(job: Job) -> None:
|
|
"""
|
|
Remove a job from the jobs list.
|
|
"""
|
|
Jobs.remove_by_uid(str(job.uid))
|
|
|
|
@staticmethod
|
|
def remove_by_uid(job_uuid: str) -> bool:
|
|
"""
|
|
Remove a job from the jobs list.
|
|
"""
|
|
redis = RedisPool().get_connection()
|
|
key = _redis_key_from_uuid(job_uuid)
|
|
if redis.exists(key):
|
|
redis.delete(key)
|
|
return True
|
|
return False
|
|
|
|
@staticmethod
|
|
def reset_logs():
|
|
redis = RedisPool().get_connection()
|
|
for key in redis.keys(STATUS_LOGS_PREFIX + "*"):
|
|
redis.delete(key)
|
|
|
|
@staticmethod
|
|
def log_status_update(job: Job, status: JobStatus):
|
|
redis = RedisPool().get_connection()
|
|
key = _status_log_key_from_uuid(job.uid)
|
|
redis.lpush(key, status.value)
|
|
redis.expire(key, 10)
|
|
|
|
@staticmethod
|
|
def log_progress_update(job: Job, progress: int):
|
|
redis = RedisPool().get_connection()
|
|
key = _progress_log_key_from_uuid(job.uid)
|
|
redis.lpush(key, progress)
|
|
redis.expire(key, 10)
|
|
|
|
@staticmethod
|
|
def status_updates(job: Job) -> typing.List[JobStatus]:
|
|
result = []
|
|
|
|
redis = RedisPool().get_connection()
|
|
key = _status_log_key_from_uuid(job.uid)
|
|
if not redis.exists(key):
|
|
return []
|
|
|
|
status_strings = redis.lrange(key, 0, -1)
|
|
for status in status_strings:
|
|
try:
|
|
result.append(JobStatus[status])
|
|
except KeyError as e:
|
|
raise ValueError("impossible job status: " + status) from e
|
|
return result
|
|
|
|
@staticmethod
|
|
def progress_updates(job: Job) -> typing.List[int]:
|
|
result = []
|
|
|
|
redis = RedisPool().get_connection()
|
|
key = _progress_log_key_from_uuid(job.uid)
|
|
if not redis.exists(key):
|
|
return []
|
|
|
|
progress_strings = redis.lrange(key, 0, -1)
|
|
for progress in progress_strings:
|
|
try:
|
|
result.append(int(progress))
|
|
except KeyError as e:
|
|
raise ValueError("impossible job progress: " + progress) from e
|
|
return result
|
|
|
|
@staticmethod
|
|
def update(
|
|
job: Job,
|
|
status: JobStatus,
|
|
status_text: typing.Optional[str] = None,
|
|
progress: typing.Optional[int] = None,
|
|
name: typing.Optional[str] = None,
|
|
description: typing.Optional[str] = None,
|
|
error: typing.Optional[str] = None,
|
|
result: typing.Optional[str] = None,
|
|
) -> Job:
|
|
"""
|
|
Update a job in the jobs list.
|
|
"""
|
|
if name is not None:
|
|
job.name = name
|
|
if description is not None:
|
|
job.description = description
|
|
if status_text is not None:
|
|
job.status_text = status_text
|
|
if status == JobStatus.FINISHED:
|
|
job.progress = 100
|
|
if progress is not None:
|
|
# explicitly provided progress has priority
|
|
job.progress = progress
|
|
Jobs.log_progress_update(job, progress)
|
|
job.status = status
|
|
Jobs.log_status_update(job, status)
|
|
job.updated_at = datetime.datetime.now()
|
|
job.error = error
|
|
job.result = result
|
|
if status in (JobStatus.FINISHED, JobStatus.ERROR):
|
|
job.finished_at = datetime.datetime.now()
|
|
|
|
redis = RedisPool().get_connection()
|
|
key = _redis_key_from_uuid(job.uid)
|
|
if redis.exists(key):
|
|
_store_job_as_hash(redis, key, job)
|
|
if status in (JobStatus.FINISHED, JobStatus.ERROR):
|
|
redis.expire(key, JOB_EXPIRATION_SECONDS)
|
|
|
|
return job
|
|
|
|
@staticmethod
|
|
def get_job(uid: str) -> typing.Optional[Job]:
|
|
"""
|
|
Get a job from the jobs list.
|
|
"""
|
|
redis = RedisPool().get_connection()
|
|
key = _redis_key_from_uuid(uid)
|
|
if redis.exists(key):
|
|
return _job_from_hash(redis, key)
|
|
return None
|
|
|
|
@staticmethod
|
|
def get_jobs() -> typing.List[Job]:
|
|
"""
|
|
Get the jobs list.
|
|
"""
|
|
redis = RedisPool().get_connection()
|
|
job_keys = redis.keys("jobs:*")
|
|
jobs = []
|
|
for job_key in job_keys:
|
|
job = _job_from_hash(redis, job_key)
|
|
if job is not None:
|
|
jobs.append(job)
|
|
return jobs
|
|
|
|
@staticmethod
|
|
def is_busy() -> bool:
|
|
"""
|
|
Check if there is a job running.
|
|
"""
|
|
for job in Jobs.get_jobs():
|
|
if job.status == JobStatus.RUNNING:
|
|
return True
|
|
return False
|
|
|
|
|
|
def _redis_key_from_uuid(uuid_string):
|
|
return "jobs:" + str(uuid_string)
|
|
|
|
|
|
def _status_log_key_from_uuid(uuid_string):
|
|
return STATUS_LOGS_PREFIX + str(uuid_string)
|
|
|
|
|
|
def _progress_log_key_from_uuid(uuid_string):
|
|
return PROGRESS_LOGS_PREFIX + str(uuid_string)
|
|
|
|
|
|
def _store_job_as_hash(redis, redis_key, model):
|
|
for key, value in model.dict().items():
|
|
if isinstance(value, uuid.UUID):
|
|
value = str(value)
|
|
if isinstance(value, datetime.datetime):
|
|
value = value.isoformat()
|
|
if isinstance(value, JobStatus):
|
|
value = value.value
|
|
redis.hset(redis_key, key, str(value))
|
|
|
|
|
|
def _job_from_hash(redis, redis_key):
|
|
if redis.exists(redis_key):
|
|
job_dict = redis.hgetall(redis_key)
|
|
for date in [
|
|
"created_at",
|
|
"updated_at",
|
|
"finished_at",
|
|
]:
|
|
if job_dict[date] != "None":
|
|
job_dict[date] = datetime.datetime.fromisoformat(job_dict[date])
|
|
for key in job_dict.keys():
|
|
if job_dict[key] == "None":
|
|
job_dict[key] = None
|
|
|
|
return Job(**job_dict)
|
|
return None
|