| #!/usr/bin/env python |
| # |
| # Copyright 2007 Google Inc. |
| # |
| # 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. |
| # |
| |
| |
| |
| |
| """Stubs for System service.""" |
| |
| |
| |
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| |
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| |
| |
| import random |
| |
| from google.appengine.api import apiproxy_stub |
| from google.appengine.api import request_info |
| from google.appengine.api.system import system_service_pb |
| from google.appengine.runtime import apiproxy_errors |
| |
| |
| class SystemServiceStub(apiproxy_stub.APIProxyStub): |
| """Python stub for System service. |
| |
| This stub is very simple at the moment; it only returns fixed values. |
| |
| It also provides a place for the dev_appserver to record backend info. |
| """ |
| |
| _ACCEPTS_REQUEST_ID = True |
| |
| def __init__(self, default_cpu=None, default_memory=None, request_data=None): |
| """Constructor. |
| |
| Args: |
| default_cpu: SystemStat; if set, value will be used for GetSystemStats. |
| default_memory: SystemStat; if set, value will be used for GetSystemStats. |
| request_data: A request_info.RequestInfo instance used to look up state |
| associated with the request that generated an API call. |
| """ |
| super(SystemServiceStub, self).__init__('system', request_data=request_data) |
| self.default_cpu = default_cpu |
| self.default_memory = default_memory |
| |
| |
| self.num_calls = {} |
| |
| |
| self._backend_info = None |
| |
| def _Dynamic_GetSystemStats(self, unused_request, response, |
| unused_request_id): |
| """Mock version of System stats always returns fixed values.""" |
| |
| cpu = response.mutable_cpu() |
| if self.default_cpu: |
| cpu.CopyFrom(self.default_cpu) |
| |
| memory = response.mutable_memory() |
| if self.default_memory: |
| memory.CopyFrom(self.default_memory) |
| |
| self.num_calls["GetSystemStats"] = ( |
| self.num_calls.get("GetSystemStats", 0) + 1) |
| |
| def _Dynamic_StartBackgroundRequest(self, unused_request, response, |
| request_id): |
| background_request_id = '%x' % random.randrange(1 << 64) |
| try: |
| self.request_data.get_dispatcher().send_background_request( |
| self.request_data.get_module(request_id), |
| self.request_data.get_version(request_id), |
| self.request_data.get_instance(request_id), |
| background_request_id) |
| except request_info.NotSupportedWithAutoScalingError: |
| raise apiproxy_errors.ApplicationError( |
| system_service_pb.SystemServiceError.BACKEND_REQUIRED) |
| except request_info.BackgroundThreadLimitReachedError: |
| raise apiproxy_errors.ApplicationError( |
| system_service_pb.SystemServiceError.LIMIT_REACHED) |
| response.set_request_id(background_request_id) |
| |
| def set_backend_info(self, backend_info): |
| """Set backend info. Typically a list of BackendEntry objects.""" |
| self._backend_info = backend_info |
| |
| def get_backend_info(self): |
| """Set backend info. Typically a list of BackendEntry objects.""" |
| return self._backend_info |