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
  24 from google.appengine.api.images import images_blob_stub
  25
  26
  27 class ImagesNotImplementedServiceStub(object):
  28   """Stub version of images API which raises a NotImplementedError."""
  29
  30   def __init__(self, host_prefix=""):
  31     self._blob_stub = images_blob_stub.ImagesBlobStub(host_prefix)
  32
  33   def MakeSyncCall(self, service, call, request, response, request_id=None):
  34     """Main entry point.
  35
  36     Args:
  37       service: str, must be 'images'.
  38       call: str, name of the RPC to make, must be part of ImagesService.
  39       request: pb object, corresponding args to the 'call' argument.
  40       response: pb object, return value for the 'call' argument.
  41       request_id: A unique string identifying the request associated with the
  42           API call.
  43     """
  44     if service == "images":
  45       if call == "GetUrlBase":
  46         self._blob_stub.GetUrlBase(request, response)
  47         return
  48       elif call == "DeleteUrlBase":
  49         self._blob_stub.DeleteUrlBase(request, response)
  50         return
  51     raise NotImplementedError("Unable to find the Python PIL library.  Please "
  52                               "view the SDK documentation for details about "
  53                               "installing PIL on your system.")