python/google/appengine/api/images/images_not_implemented_stub.py

   1 #!/usr/bin/env python
   2 #
   3 # Copyright 2007 Google Inc.
   4 #
   5 # Licensed under the Apache License, Version 2.0 (the "License");
   6 # you may not use this file except in compliance with the License.
   7 # You may obtain a copy of the License at
   8 #
   9 #     http://www.apache.org/licenses/LICENSE-2.0
  10 #
  11 # Unless required by applicable law or agreed to in writing, software
  12 # distributed under the License is distributed on an "AS IS" BASIS,
  13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14 # See the License for the specific language governing permissions and
  15 # limitations under the License.
  16 #
  17
  18
  19
  20
  21 """A NotImplemented Images API stub for when the PIL library is not found."""
  22
  23 from google.appengine.api import apiproxy_stub
  24 from google.appengine.api.images import images_blob_stub
  25
  26 _SERVICE_NAME = 'images'
  27
  28
  29 class ImagesNotImplementedServiceStub(apiproxy_stub.APIProxyStub):
  30   """Stub version of images API which raises a NotImplementedError."""
  31
  32   def __init__(self, host_prefix=''):
  33     super(ImagesNotImplementedServiceStub, self).__init__(_SERVICE_NAME)
  34     self._blob_stub = images_blob_stub.ImagesBlobStub(host_prefix)
  35
  36   def MakeSyncCall(self, service, call, request, response, request_id=None):
  37     """Main entry point.
  38
  39     Args:
  40       service: str, must be 'images'.
  41       call: str, name of the RPC to make, must be part of ImagesService.
  42       request: pb object, corresponding args to the 'call' argument.
  43       response: pb object, return value for the 'call' argument.
  44       request_id: A unique string identifying the request associated with the
  45           API call.
  46     """
  47     if service == _SERVICE_NAME:
  48       if call == 'GetUrlBase':
  49         self._blob_stub.GetUrlBase(request, response)
  50         return
  51       elif call == 'DeleteUrlBase':
  52         self._blob_stub.DeleteUrlBase(request, response)
  53         return
  54     raise NotImplementedError('Unable to find the Python PIL library.  Please '
  55                               'view the SDK documentation for details about '
  56                               'installing PIL on your system.')