mirror of
https://github.com/SickGear/SickGear.git
synced 2024-12-18 16:53:38 +00:00
32987134ba
Cleanup most init warnings. Cleanup some vars, pythonic instead of js. Some typos and python var/func names for Scheduler. Remove legacy handlers deprecated in 2020. Remove some legacy tagged stuff. Cleanup ConfigParser and 23.py Change cleanup vendored scandir. Remove redundant pkg_resources.py in favour of the vendor folder. Remove backports. Remove trakt checker. Change remove redundant WindowsSelectorEventLoopPolicy from webserveInit. Cleanup varnames and providers Various minor tidy ups to remove ide warnings.
350 lines
12 KiB
Python
350 lines
12 KiB
Python
#
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# This file is part of SickGear.
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#
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# SickGear is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# SickGear is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with SickGear. If not, see <http://www.gnu.org/licenses/>.
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import copy
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import datetime
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import threading
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from . import db, logger
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from exceptions_helper import ex
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from six import integer_types
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# noinspection PyUnreachableCode
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if False:
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from typing import AnyStr, Callable, Dict, List, Optional, Tuple, Union
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from .search_queue import BaseSearchQueueItem
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from .show_queue import ShowQueueItem
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from .people_queue import CastQueueItem
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class QueuePriorities(object):
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LOW = 10
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NORMAL = 20
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HIGH = 30
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VERYHIGH = 40
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class GenericQueue(object):
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def __init__(self, cache_db_tables=None, main_db_tables=None):
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# type: (List[AnyStr], List[AnyStr]) -> None
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self.currentItem = None # type: QueueItem or None
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self.queue = [] # type: List[Union[QueueItem, BaseSearchQueueItem, ShowQueueItem]]
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self.queue_name = 'QUEUE' # type: AnyStr
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self.min_priority = 0 # type: int
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self.events = {} # type: Dict[int, List[Callable]]
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self.lock = threading.RLock()
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self.cache_db_tables = cache_db_tables or [] # type: List[AnyStr]
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self.main_db_tables = main_db_tables or [] # type: List[AnyStr]
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self._id_counter = self._load_init_id() # type: integer_types
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def _load_init_id(self):
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# type: (...) -> integer_types
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"""
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fetch highest uid for queue type to initialize the class
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"""
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my_db = db.DBConnection('cache.db')
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cr = my_db.mass_action([['SELECT max(uid) as max_id FROM %s' % t] for t in self.cache_db_tables])
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my_db = db.DBConnection()
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mr = my_db.mass_action([['SELECT max(uid) as max_id FROM %s' % t] for t in self.main_db_tables])
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return max([c[0]['max_id'] or 0 for c in cr] + [s[0]['max_id'] or 0 for s in mr] + [0])
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def _get_new_id(self):
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# type: (...) -> integer_types
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self._id_counter += 1
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return self._id_counter
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def load_queue(self):
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pass
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def save_queue(self):
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cl = self._clear_sql()
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try:
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with self.lock:
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for item in ((self.currentItem and [self.currentItem]) or []) + self.queue:
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cl.extend(self._get_item_sql(item))
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if cl:
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my_db = db.DBConnection('cache.db')
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my_db.mass_action(cl)
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except (BaseException, Exception) as e:
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logger.log('Exception saving queue %s to db: %s' % (self.__class__.__name__, ex(e)), logger.ERROR)
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def _clear_sql(self):
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# type: (...) -> List[List]
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return []
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def save_item(self, item):
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try:
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if item:
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item_sql = self._get_item_sql(item)
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if item_sql:
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my_db = db.DBConnection('cache.db')
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my_db.mass_action(item_sql)
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except (BaseException, Exception) as e:
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logger.log('Exception saving item %s to db: %s' % (item, ex(e)), logger.ERROR)
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def delete_item(self, item, finished_run=False):
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# type: (Union[QueueItem, CastQueueItem], bool) -> None
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"""
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:param item:
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:param finished_run: set to True when queue item has run
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"""
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if item:
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try:
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item_sql = self._delete_item_from_db_sql(item)
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if item_sql:
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my_db = db.DBConnection('cache.db')
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my_db.mass_action(item_sql)
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except (BaseException, Exception) as e:
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logger.log('Exception deleting item %s from db: %s' % (item, ex(e)), logger.ERROR)
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def _get_item_sql(self, item):
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# type: (Union[QueueItem, CastQueueItem]) -> List[List]
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return []
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def _delete_item_from_db_sql(self, item):
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# type: (Union[QueueItem, CastQueueItem]) -> List[List]
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pass
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def remove_from_queue(self, to_remove=None, force=False):
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# type: (List[AnyStr], bool) -> None
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"""
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remove given uid items from queue
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:param to_remove: list of uids to remove from queue
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:param force: force removal from db
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"""
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self._remove_from_queue(to_remove=to_remove, excluded_types=[], force=force)
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def _remove_from_queue(self, to_remove=None, excluded_types=None, force=False):
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# type: (List[AnyStr], List, bool) -> None
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"""
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remove given uid items from queue
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:param to_remove: list of uids to remove from queue
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:param force: force removal from db
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"""
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if to_remove:
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excluded_types = excluded_types or []
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with self.lock:
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if not force:
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to_remove = [r for r in to_remove for q in self.queue
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if r == q.uid and (q.action_id not in excluded_types)]
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del_sql = [
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['DELETE FROM %s WHERE uid IN (%s)' % (t, ','.join(['?'] * len(to_remove))), to_remove]
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for t in self.cache_db_tables
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]
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del_main_sql = [
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['DELETE FROM %s WHERE uid IN (%s)' % (t, ','.join(['?'] * len(to_remove))), to_remove]
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for t in self.main_db_tables
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]
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self.queue = [q for q in self.queue if q.uid not in to_remove]
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if del_sql:
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my_db = db.DBConnection('cache.db')
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my_db.mass_action(del_sql)
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if del_main_sql:
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my_db = db.DBConnection()
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my_db.mass_action(del_main_sql)
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def clear_queue(self, action_types=None):
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# type: (integer_types) -> None
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"""
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clear queue excluding internal defined types
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:param action_types: only clear supplied action types
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"""
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if not isinstance(action_types, list):
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action_types = [action_types]
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return self._clear_queue(action_types=action_types)
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def _clear_queue(self, action_types=None, excluded_types=None):
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# type: (List[integer_types], List) -> None
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excluded_types = excluded_types or []
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with self.lock:
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if action_types:
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self.queue = [q for q in self.queue if q.action_id in excluded_types or q.action_id not in action_types]
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del_sql = [
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['DELETE FROM %s WHERE action_id IN (%s)' % (t, ','.join(['?'] * len(action_types))), action_types]
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for t in self.cache_db_tables
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]
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del_main_sql = [
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['DELETE FROM %s WHERE action_id IN (%s)' % (t, ','.join(['?'] * len(action_types))), action_types]
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for t in self.main_db_tables
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]
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else:
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self.queue = [q for q in self.queue if q.action_id in excluded_types]
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del_sql = [
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['DELETE FROM %s' % t] for t in self.cache_db_tables
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]
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del_main_sql = [
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['DELETE FROM %s' % t] for t in self.main_db_tables
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]
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if del_sql:
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my_db = db.DBConnection('cache.db')
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my_db.mass_action(del_sql)
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if del_main_sql:
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my_db = db.DBConnection()
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my_db.mass_action(del_main_sql)
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def pause(self):
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logger.log(u'Pausing queue')
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if self.lock:
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self.min_priority = 999999999999
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def unpause(self):
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logger.log(u'Unpausing queue')
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with self.lock:
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self.min_priority = 0
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def add_item(self, item, add_to_db=True):
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"""
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:param item: Queue Item
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:type item: QueueItem
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:param add_to_db: add to db
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:return: Queue Item
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:rtype: QueueItem
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"""
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with self.lock:
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item.added = datetime.datetime.now()
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item.uid = item.uid or self._get_new_id()
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self.queue.append(item)
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if add_to_db:
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self.save_item(item)
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return item
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def check_events(self):
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pass
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def add_event(self, event_type, method):
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# type: (int, Callable) -> None
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if isinstance(event_type, integer_types) and callable(method):
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if event_type not in self.events:
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self.events[event_type] = []
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if method not in self.events[event_type]:
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self.events[event_type].append(method)
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def remove_event(self, event_type, method):
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# type: (int, Callable) -> None
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if isinstance(event_type, integer_types) and callable(method):
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if event_type in self.events and method in self.events[event_type]:
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try:
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self.events[event_type].remove(method)
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if 0 == len(self.events[event_type]):
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del self.events[event_type]
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except (BaseException, Exception) as e:
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logger.log('Error removing event method from queue: %s' % ex(e), logger.ERROR)
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def execute_events(self, event_type, *args, **kwargs):
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# type: (int, Tuple, Dict) -> None
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if event_type in self.events:
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for event in self.events.get(event_type):
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try:
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event(*args, **kwargs)
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except (BaseException, Exception) as e:
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logger.log('Error executing Event: %s' % ex(e), logger.ERROR)
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def run(self):
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# only start a new task if one isn't already going
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with self.lock:
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if None is self.currentItem or not self.currentItem.is_alive():
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# if the thread is dead then the current item should be finished
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if self.currentItem:
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self.currentItem.finish()
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try:
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self.delete_item(self.currentItem, finished_run=True)
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except (BaseException, Exception):
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pass
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self.currentItem = None
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# if there's something in the queue then run it in a thread and take it out of the queue
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if 0 < len(self.queue):
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self.queue.sort(key=lambda y: (-y.priority, y.added))
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if self.queue[0].priority < self.min_priority:
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return
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# launch the queue item in a thread
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self.currentItem = self.queue.pop(0)
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if 'SEARCHQUEUE' != self.queue_name:
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self.currentItem.name = self.queue_name + '-' + self.currentItem.name
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self.currentItem.start()
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self.check_events()
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class QueueItem(threading.Thread):
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def __init__(self, name, action_id=0, uid=None):
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# type: (AnyStr, int, integer_types) -> None
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"""
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:param name: name
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:param action_id:
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:param uid:
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"""
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super(QueueItem, self).__init__()
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self.name = name.replace(' ', '-').upper() # type: AnyStr
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self.inProgress = False # type: bool
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self.priority = QueuePriorities.NORMAL # type: int
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self.action_id = action_id # type: int
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self.stop = threading.Event()
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self.added = None # type: Optional[datetime.datetime]
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self.uid = uid # type: integer_types
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def copy(self, deepcopy_obj=None):
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"""
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:param deepcopy_obj: List of properties to be deep copied
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:type deepcopy_obj: List
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:return: a shallow copy of QueueItem with optional deepcopy of in deepcopy_obj listed objects
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:rtype: QueueItem
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"""
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cls = self.__class__
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result = cls.__new__(cls)
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result.__dict__.update(self.__dict__)
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if deepcopy_obj:
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for o in deepcopy_obj:
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if self.__dict__.get(o):
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new_seg = copy.deepcopy(self.__dict__.get(o))
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result.__dict__[o] = new_seg
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return result
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def run(self):
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"""Implementing classes should call this"""
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self.inProgress = True
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def finish(self):
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"""Implementing Classes should call this"""
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self.inProgress = False
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threading.current_thread().name = self.name
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