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# Copyright 2015, Google Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
#     * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#     * Redistributions in binary form must reproduce the above
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#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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"""Common resources used in the gRPC route guide example."""

import json

import route_guide_pb2


def read_route_guide_database():
  """Reads the route guide database.

  Returns:
    The full contents of the route guide database as a sequence of
      route_guide_pb2.Features.
  """
  feature_list = []
  with open("route_guide_db.json") as route_guide_db_file:
    for item in json.load(route_guide_db_file):
      feature = route_guide_pb2.Feature(
          name=item["name"],
          location=route_guide_pb2.Point(
              latitude=item["location"]["latitude"],
              longitude=item["location"]["longitude"]))
      feature_list.append(feature)
  return feature_list