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      1 # Copyright 2017 Google Inc. All rights reserved.
      2 #
      3 # Licensed under the Apache License, Version 2.0 (the "License");
      4 # you may not use this file except in compliance with the License.
      5 # You may obtain a copy of the License at
      6 #
      7 #     http://www.apache.org/licenses/LICENSE-2.0
      8 #
      9 # Unless required by applicable law or agreed to in writing, software
     10 # distributed under the License is distributed on an "AS IS" BASIS,
     11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     12 # See the License for the specific language governing permissions and
     13 # limitations under the License.
     14 """Host Info APIs implemented using Google Cloud Endpoints."""
     15 
     16 import datetime
     17 import endpoints
     18 
     19 from protorpc import remote
     20 
     21 from google.appengine.api import users
     22 
     23 from webapp.src import vtslab_status as Status
     24 from webapp.src.proto import model
     25 
     26 HOST_INFO_RESOURCE = endpoints.ResourceContainer(model.HostInfoMessage)
     27 
     28 # Product type name for null device.
     29 _NULL_DEVICE_PRODUCT_TYPE = "null"
     30 
     31 
     32 def AddNullDevices(hostname, null_device_count):
     33     """Adds null devices to DeviceModel data store.
     34 
     35     Args:
     36         hostname: string, the host name.
     37         null_device_count: integer, the number of null devices.
     38     """
     39     device_query = model.DeviceModel.query(
     40         model.DeviceModel.hostname == hostname,
     41         model.DeviceModel.product == _NULL_DEVICE_PRODUCT_TYPE
     42     )
     43     null_devices = device_query.fetch()
     44     existing_null_device_count = len(null_devices)
     45 
     46     if existing_null_device_count < null_device_count:
     47         for _ in range(null_device_count - existing_null_device_count):
     48             device = model.DeviceModel()
     49             device.hostname = hostname
     50             device.serial = "n/a"
     51             device.product = _NULL_DEVICE_PRODUCT_TYPE
     52             device.status = Status.DEVICE_STATUS_DICT["ready"]
     53             device.scheduling_status = Status.DEVICE_SCHEDULING_STATUS_DICT[
     54                 "free"]
     55             device.timestamp = datetime.datetime.now()
     56             device.put()
     57 
     58 
     59 @endpoints.api(name='host_info', version='v1')
     60 class HostInfoApi(remote.Service):
     61     """Endpoint API for host_info."""
     62 
     63     @endpoints.method(
     64         HOST_INFO_RESOURCE,
     65         model.DefaultResponse,
     66         path='set',
     67         http_method='POST',
     68         name='set')
     69     def set(self, request):
     70         """Sets the host info based on the `request`."""
     71         if users.get_current_user():
     72             username = users.get_current_user().email()
     73         else:
     74             username = "anonymous"
     75 
     76         for request_device in request.devices:
     77             device_query = model.DeviceModel.query(
     78                 model.DeviceModel.serial == request_device.serial
     79             )
     80             existing_device = device_query.fetch()
     81             if existing_device:
     82                 device = existing_device[0]
     83             else:
     84                 device = model.DeviceModel()
     85                 device.serial = request_device.serial
     86                 device.scheduling_status = Status.DEVICE_SCHEDULING_STATUS_DICT[
     87                     "free"]
     88             device.username = username
     89             device.hostname = request.hostname
     90             device.product = request_device.product
     91             device.status = request_device.status
     92             device.timestamp = datetime.datetime.now()
     93             device.put()
     94 
     95         return model.DefaultResponse(
     96             return_code=model.ReturnCodeMessage.SUCCESS)
     97