thirdparty/google_appengine/google/appengine/ext/db/stats.py
author Mario Ferraro <fadinlight@gmail.com>
Sun, 15 Nov 2009 22:12:20 +0100
changeset 3093 d1be59b6b627
parent 3031 7678f72140e6
permissions -rwxr-xr-x
GMaps related JS changed to use new google namespace. Google is going to change permanently in the future the way to load its services, so better stay safe. Also this commit shows uses of the new melange.js module. Fixes Issue 634.
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#!/usr/bin/env python
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#
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# Copyright 2007 Google Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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#     http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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"""Models to be used when accessing app specific datastore usage statistics.
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These entities cannot be created by users, but are populated in the
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application's datastore by offline processes run by the Google App Engine team.
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"""
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try:
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  from google.appengine.ext import db
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except ImportError:
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  from google.appengine.ext import db
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class BaseStatistic(db.Model):
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  """Base Statistic Model class.
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  The 'bytes' attribute represents the total number of bytes taken up in the
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  datastore for the statistic instance.  The 'count' attribute is the
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  total number of occurrences of the statistic in the datastore.  The
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  'timestamp' is when the statistic instance was written to the datastore.
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  """
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  STORED_KIND_NAME = '__BaseStatistic__'
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  bytes = db.IntegerProperty()
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  count = db.IntegerProperty()
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  timestamp = db.DateTimeProperty()
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  @classmethod
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  def kind(cls):
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    """Kind name override."""
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    return cls.STORED_KIND_NAME
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class BaseKindStatistic(BaseStatistic):
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  """Base Statistic Model class for stats associated with kinds.
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  The 'kind_name' attribute represents the name of the kind associated with the
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  statistic instance.
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  """
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  STORED_KIND_NAME = '__BaseKindStatistic__'
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  kind_name = db.StringProperty()
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class GlobalStat(BaseStatistic):
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  """An aggregate of all entities across the entire application.
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  This statistic only has a single instance in the datastore that contains the
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  total number of entities stored and the total number of bytes they take up.
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  """
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  STORED_KIND_NAME = '__Stat_Total__'
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class KindStat(BaseKindStatistic):
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  """An aggregate of all entities at the granularity of their Kind.
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  There is an instance of the KindStat for every Kind that is in the
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  application's datastore.  This stat contains per-Kind statistics.
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  """
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  STORED_KIND_NAME = '__Stat_Kind__'
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class KindRootEntityStat(BaseKindStatistic):
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  """Statistics of the number of root entities in the datastore by Kind.
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  There is an instance of the KindRootEntityState for every Kind that is in the
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  application's datastore and has an instance that is a root entity.  This stat
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  contains statistics regarding these root entity instances.
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  """
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  STORED_KIND_NAME = '__Stat_Kind_IsRootEntity__'
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class KindNonRootEntityStat(BaseKindStatistic):
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  """Statistics of the number of non root entities in the datastore by Kind.
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  There is an instance of the KindNonRootEntityStat for every Kind that is in
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  the application's datastore that is a not a root entity.  This stat contains
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  statistics regarding thse non root entity instances.
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  """
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  STORED_KIND_NAME = '__Stat_Kind_NotRootEntity__'
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class PropertyTypeStat(BaseStatistic):
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  """An aggregate of all properties across the entire application by type.
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  There is an instance of the PropertyTypeStat for every property type
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  (google.appengine.api.datastore_types._PROPERTY_TYPES) in use by the
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  application in its datastore.
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  """
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  STORED_KIND_NAME = '__Stat_PropertyType__'
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  property_type = db.StringProperty()
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class KindPropertyTypeStat(BaseKindStatistic):
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  """Statistics on (kind, property_type) tuples in the app's datastore.
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  There is an instance of the KindPropertyTypeStat for every
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  (kind, property_type) tuple in the application's datastore.
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  """
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  STORED_KIND_NAME = '__Stat_PropertyType_Kind__'
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  property_type = db.StringProperty()
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class KindPropertyNameStat(BaseKindStatistic):
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  """Statistics on (kind, property_name) tuples in the app's datastore.
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  There is an instance of the KindPropertyNameStat for every
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  (kind, property_type) tuple in the application's datastore.
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  """
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  STORED_KIND_NAME = '__Stat_PropertyName_Kind__'
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  property_name = db.StringProperty()
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class KindPropertyNamePropertyTypeStat(BaseKindStatistic):
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  """Statistic on (kind, property_name, property_type) tuples in the datastore.
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  There is an instance of the KindPropertyNamePropertyTypeStat for every
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  (kind, property_name, property_type) tuple in the application's datastore.
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  """
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  STORED_KIND_NAME = '__Stat_PropertyType_PropertyName_Kind__'
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  property_type = db.StringProperty()
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  property_name = db.StringProperty()