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server.py
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server.py
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import data_pb2
import service_pb2
import time
def get_compressed_deck(deck):
compressed_deck = data_pb2.Deck()
compressed_deck.deckId = deck.deckId
compressed_deck.description = deck.description
return compressed_deck
class DataRetrievalServicer(service_pb2.BetaDataRetrievalServicer):
"""Implements functionality of DataRetrieval server"""
def __init__(self):
self.db = self.read_data()
# TODO : Read data from input file.
def read_data(self):
decks = []
deck = data_pb2.Deck()
deck.userId = "1"
deck.deckId = "1"
deck.description = "deck 1 of user 1"
deck.pageToken = 1
deck.nextPageToken = 2
card = data_pb2.Card()
card.id = "1"
card.title = "Restaurant 1"
deck.cards["1"] = card
decks.append(deck)
return decks
def GetDeck(self, request, context):
deck_response = service_pb2.DeckResponse()
for deck in self.db:
if deck.deckId == request.deckId:
deck_response.deck = deck
return deck_response
def GetUserDeck(self, request, context):
user_deck_response = service_pb2.UserDeckResponse()
for deck in self.db:
if deck.userId == request.userId:
if not request.paginated or request.pageToken == deck.pageToken:
user_deck_response.decks[deck.deckId] = get_compressed_deck(deck)
return user_deck_response
# TODO : Handle timeouts.
def GetDetailedUserDeck(self, request, context):
user_deck_response = self.GetUserDeck(request)
detailed_user_deck_response = service_pb2.UserDeckResponse()
for deckId in user_deck_response.decks:
deck_request = service_pb2.DeckRequest()
deck_request.deckId = deckId
detailed_user_deck_response.decks[deckId] = self.GetDeck(deck_request).deck
return detailed_user_deck_response
def serve():
server = service_pb2.beta_create_DataRetrieval_server(DataRetrievalServicer())
server.add_insecure_port('[::]:50051')
server.start()
try:
while True:
time.sleep(300)
except KeyboardInterrupt:
server.stop()
if __name__ == '__main__':
serve()