+
−#!/usr/bin/python2.5
+
−#
+
−# Copyright 2009 the Melange authors.
+
−#
+
−# Licensed under the Apache License, Version 2.0 (the "License");
+
−# you may not use this file except in compliance with the License.
+
−# You may obtain a copy of the License at
+
−#
+
−#   http://www.apache.org/licenses/LICENSE-2.0
+
−#
+
−# Unless required by applicable law or agreed to in writing, software
+
−# distributed under the License is distributed on an "AS IS" BASIS,
+
−# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+
−# See the License for the specific language governing permissions and
+
−# limitations under the License.
+
−
+
−"""Middleware to set up and empty the value store.
+
−"""
+
−
+
−__authors__ = [
+
−  '"Sverre Rabbelier" <sverre@rabbelier.nl>',
+
−  ]
+
−
+
−
+
−from soc.modules import callback
+
−
+
−
+
−class ValueStoreMiddleware(object):
+
−  """Middleware class to set up and empty the value store.
+
−  """
+
−
+
−  def start(self, request):
+
−    """Sets up the value store.
+
−
+
−    Args:
+
−      request: a Django HttpRequest object
+
−    """
+
−
+
−    core = callback.getCore()
+
−    core.startNewRequest(request)
+
−
+
−  def end(self, request, optional):
+
−    """Empties the value store.
+
−
+
−    Args:
+
−      request: a Django HttpRequest object
+
−    """
+
−
+
−    core = callback.getCore()
+
−    core.endRequest(request, optional)
+
−
+
−  def process_request(self, request):
+
−    """Called when a request is made.
+
−
+
−    See the Django middleware documentation for an explanation of
+
−    the method signature.
+
−    """
+
−    self.start(request)
+
−
+
−  def process_response(self, request, response):
+
−    """Called when a response is returned.
+
−
+
−    See the Django middleware documentation for an explanation of
+
−    the method signature.
+
−    """
+
−
+
−    self.end(request, True)
+
−    return response
+
−
+
−  def process_exception(self, request, exception):
+
−    """Called when an uncaught exception is raised.
+
−
+
−    See the Django middleware documentation for an explanation of
+
−    the method signature.
+
−    """
+
−
+
−    self.end(request, False)