PlexKodiConnect/resources/lib/library_sync/fill_metadata_queue.py
2019-12-13 14:00:39 +01:00

58 lines
2.3 KiB
Python

# -*- coding: utf-8 -*-
from __future__ import absolute_import, division, unicode_literals
from logging import getLogger
from . import common
from ..plex_db import PlexDB
from .. import backgroundthread
LOG = getLogger('PLEX.sync.fill_metadata_queue')
class FillMetadataQueue(common.LibrarySyncMixin,
backgroundthread.KillableThread):
"""
Threaded download of Plex XML metadata for a certain library item.
Fills the queue with the downloaded etree XML objects. Will use a COPIED
plex.db file (plex-copy.db) in order to read much faster without the
writing thread stalling
"""
def __init__(self, repair, section_queue, get_metadata_queue):
self.repair = repair
self.section_queue = section_queue
self.get_metadata_queue = get_metadata_queue
super(FillMetadataQueue, self).__init__()
def _process_section(self, section):
# Initialize only once to avoid loosing the last value before we're
# breaking the for loop
LOG.debug('Process section %s with %s items',
section, section.number_of_items)
count = 0
with PlexDB(lock=False, copy=True) as plexdb:
for xml in section.iterator:
if self.should_cancel():
break
plex_id = int(xml.get('ratingKey'))
checksum = int('{}{}'.format(
plex_id,
xml.get('updatedAt',
xml.get('addedAt', '1541572987'))))
if (not self.repair and
plexdb.checksum(plex_id, section.plex_type) == checksum):
continue
self.get_metadata_queue.put((count, plex_id, section))
count += 1
# We might have received LESS items from the PMS than anticipated.
# Ensures that our queues finish
section.number_of_items = count
def _run(self):
while not self.should_cancel():
section = self.section_queue.get()
self.section_queue.task_done()
if section is None:
break
self._process_section(section)
# Signal the download metadata threads to stop with a sentinel
self.get_metadata_queue.put(None)