openmedialibrary/oml/downloads.py

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# -*- coding: utf-8 -*-
# vi:si:et:sw=4:sts=4:ts=4
from __future__ import division
from threading import Thread
import time
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import logging
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import state
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logger = logging.getLogger('oml.downloads')
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class Downloads(Thread):
def __init__(self, app):
self._app = app
self._running = True
Thread.__init__(self)
self.daemon = True
self.start()
def download_next(self):
import item.models
for t in item.models.Transfer.query.filter(
item.models.Transfer.added!=None,
item.models.Transfer.progress<1).order_by(item.models.Transfer.added):
for u in t.item.users:
if state.nodes.is_online(u.id):
logger.debug('DOWNLOAD %s %s', t.item, u)
r = state.nodes.download(u.id, t.item)
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logger.debug('download ok? %s', r)
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return True
return False
def run(self):
time.sleep(2)
with self._app.app_context():
while self._running:
if state.online:
self.download_next()
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time.sleep(0.5)
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else:
time.sleep(20)
def join(self):
self._running = False
self._q.put(None)
return Thread.join(self)