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-rw-r--r--Tools/QueueStatusServer/model/activeworkitems.py97
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diff --git a/Tools/QueueStatusServer/model/activeworkitems.py b/Tools/QueueStatusServer/model/activeworkitems.py
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--- a/Tools/QueueStatusServer/model/activeworkitems.py
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@@ -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