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Diffstat (limited to 'Tools/QueueStatusServer/model/activeworkitems.py')
-rw-r--r-- | Tools/QueueStatusServer/model/activeworkitems.py | 97 |
1 files changed, 0 insertions, 97 deletions
diff --git a/Tools/QueueStatusServer/model/activeworkitems.py b/Tools/QueueStatusServer/model/activeworkitems.py deleted file mode 100644 index 023258a6e..000000000 --- a/Tools/QueueStatusServer/model/activeworkitems.py +++ /dev/null @@ -1,97 +0,0 @@ -# Copyright (C) 2010 Google Inc. All rights reserved. -# -# Redistribution and use in source and binary forms, with or without -# modification, are permitted provided that the following conditions are -# met: -# -# * Redistributions of source code must retain the above copyright -# notice, this list of conditions and the following disclaimer. -# * Redistributions in binary form must reproduce the above -# copyright notice, this list of conditions and the following disclaimer -# in the documentation and/or other materials provided with the -# distribution. -# * Neither the name of Google Inc. nor the names of its -# contributors may be used to endorse or promote products derived from -# this software without specific prior written permission. -# -# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - -from google.appengine.ext import db - -from datetime import timedelta, datetime -import time - -from model.queuepropertymixin import QueuePropertyMixin - - -class ActiveWorkItems(db.Model, QueuePropertyMixin): - queue_name = db.StringProperty() - item_ids = db.ListProperty(int) - item_dates = db.ListProperty(float) - date = db.DateTimeProperty(auto_now_add=True) - - # The id/date pairs should probably just be their own class. - def _item_time_pairs(self): - return zip(self.item_ids, self.item_dates) - - def _set_item_time_pairs(self, pairs): - if pairs: - # The * operator raises on an empty list. - # db.Model does not tuples, we have to make lists. - self.item_ids, self.item_dates = map(list, zip(*pairs)) - else: - self.item_ids = [] - self.item_dates = [] - - def _append_item_time_pair(self, pair): - self.item_ids.append(pair[0]) - self.item_dates.append(pair[1]) - - def _remove_item(self, item_id): - nonexpired_pairs = [pair for pair in self._item_time_pairs() if pair[0] != item_id] - self._set_item_time_pairs(nonexpired_pairs) - - @classmethod - def key_for_queue(cls, queue_name): - return "active-work-items-%s" % (queue_name) - - @classmethod - def lookup_by_queue(cls, queue_name): - return cls.get_or_insert(key_name=cls.key_for_queue(queue_name), queue_name=queue_name) - - @staticmethod - def _expire_item(key, item_id): - active_work_items = db.get(key) - active_work_items._remove_item(item_id) - active_work_items.put() - - def expire_item(self, item_id): - return db.run_in_transaction(self._expire_item, self.key(), item_id) - - def deactivate_expired(self, now): - one_hour_ago = time.mktime((now - timedelta(minutes=60)).timetuple()) - nonexpired_pairs = [pair for pair in self._item_time_pairs() if pair[1] > one_hour_ago] - self._set_item_time_pairs(nonexpired_pairs) - - def next_item(self, work_item_ids, now): - for item_id in work_item_ids: - if item_id not in self.item_ids: - self._append_item_time_pair([item_id, time.mktime(now.timetuple())]) - return item_id - return None - - def time_for_item(self, item_id): - for active_item_id, time in self._item_time_pairs(): - if active_item_id == item_id: - return datetime.fromtimestamp(time) - return None |