thirdparty/google_appengine/google/appengine/api/apiproxy_stub_map.py
author Sverre Rabbelier <srabbelier@gmail.com>
Sat, 06 Dec 2008 16:52:21 +0000
changeset 686 df109be0567c
parent 109 620f9b141567
child 828 f5fd65cc3bf3
permissions -rwxr-xr-x
Load ../../google_appengine_1.1.7/ into trunk/thirdparty/google_appengine.
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
109
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
     1
#!/usr/bin/env python
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
     2
#
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
     3
# Copyright 2007 Google Inc.
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
     4
#
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
     5
# Licensed under the Apache License, Version 2.0 (the "License");
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
     6
# you may not use this file except in compliance with the License.
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
     7
# You may obtain a copy of the License at
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
     8
#
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
     9
#     http://www.apache.org/licenses/LICENSE-2.0
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    10
#
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    11
# Unless required by applicable law or agreed to in writing, software
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    12
# distributed under the License is distributed on an "AS IS" BASIS,
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    13
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    14
# See the License for the specific language governing permissions and
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    15
# limitations under the License.
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    16
#
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    17
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    18
"""Container of APIProxy stubs for more convenient unittesting.
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    19
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    20
Classes/variables/functions defined here:
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    21
  APIProxyStubMap: container of APIProxy stubs.
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    22
  apiproxy: global instance of an APIProxyStubMap.
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    23
  MakeSyncCall: APIProxy entry point.
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    24
"""
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    25
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    26
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    27
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    28
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    29
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    30
import sys
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    31
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    32
def MakeSyncCall(service, call, request, response):
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    33
  """The APIProxy entry point.
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    34
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    35
  Args:
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    36
    service: string representing which service to call
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    37
    call: string representing which function to call
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    38
    request: protocol buffer for the request
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    39
    response: protocol buffer for the response
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    40
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    41
  Raises:
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    42
    apiproxy_errors.Error or a subclass.
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    43
  """
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    44
  stub = apiproxy.GetStub(service)
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    45
  assert stub, 'No api proxy found for service "%s"' % service
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    46
  stub.MakeSyncCall(service, call, request, response)
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    47
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    48
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    49
class APIProxyStubMap:
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    50
  """Container of APIProxy stubs for more convenient unittesting.
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    51
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    52
  Stubs may be either trivial implementations of APIProxy services (e.g.
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    53
  DatastoreFileStub, UserServiceStub) or "real" implementations.
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    54
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    55
  For unittests, we may want to mix and match real and trivial implementations
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    56
  of services in order to better focus testing on individual service
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    57
  implementations. To achieve this, we allow the client to attach stubs to
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    58
  service names, as well as define a default stub to be used if no specific
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    59
  matching stub is identified.
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    60
  """
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    61
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    62
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    63
  def __init__(self, default_stub=None):
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    64
    """Constructor.
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    65
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    66
    Args:
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    67
      default_stub: optional stub
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    68
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    69
    'default_stub' will be used whenever no specific matching stub is found.
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    70
    """
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    71
    self.__stub_map = {}
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    72
    self.__default_stub = default_stub
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    73
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    74
  def RegisterStub(self, service, stub):
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    75
    """Register the provided stub for the specified service.
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    76
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    77
    Args:
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    78
      service: string
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    79
      stub: stub
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    80
    """
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    81
    assert not self.__stub_map.has_key(service)
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    82
    self.__stub_map[service] = stub
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    83
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    84
    if service == 'datastore':
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    85
      self.RegisterStub('datastore_v3', stub)
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    86
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    87
  def GetStub(self, service):
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    88
    """Retrieve the stub registered for the specified service.
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    89
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    90
    Args:
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    91
      service: string
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    92
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    93
    Returns:
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    94
      stub
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    95
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    96
    Returns the stub registered for 'service', and returns the default stub
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    97
    if no such stub is found.
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    98
    """
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
    99
    return self.__stub_map.get(service, self.__default_stub)
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
   100
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
   101
def GetDefaultAPIProxy():
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
   102
  try:
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
   103
    runtime = __import__('google.appengine.runtime', globals(), locals(),
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
   104
                         ['apiproxy'])
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
   105
    return APIProxyStubMap(runtime.apiproxy)
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
   106
  except (AttributeError, ImportError):
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
   107
    return APIProxyStubMap()
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
   108
620f9b141567 Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff changeset
   109
apiproxy = GetDefaultAPIProxy()