56 lines
2.2 KiB
PL/PgSQL
56 lines
2.2 KiB
PL/PgSQL
CREATE TYPE cdb_dataservices_server.simple_route AS (
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shape geometry(LineString,4326),
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length real,
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duration integer
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);
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CREATE OR REPLACE FUNCTION cdb_dataservices_server._cdb_mapzen_route_point_to_point(
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username TEXT,
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orgname TEXT,
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origin geometry(Point, 4326),
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destination geometry(Point, 4326),
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mode TEXT,
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options text[] DEFAULT ARRAY[]::text[],
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units text DEFAULT 'kilometers')
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RETURNS cdb_dataservices_server.simple_route AS $$
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import json
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from cartodb_services.mapzen import MapzenRouting, MapzenRoutingResponse
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from cartodb_services.mapzen.types import polyline_to_linestring
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from cartodb_services.metrics import QuotaService
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from cartodb_services.tools import Coordinate
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redis_conn = GD["redis_connection_{0}".format(username)]['redis_metrics_connection']
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user_routing_config = GD["user_routing_config_{0}".format(username)]
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quota_service = QuotaService(user_routing_config, redis_conn)
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try:
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client = MapzenRouting(user_routing_config.mapzen_app_key)
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orig_lat = plpy.execute("SELECT ST_Y('%s') AS lat" % origin)[0]['lat']
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orig_lon = plpy.execute("SELECT ST_X('%s') AS lon" % origin)[0]['lon']
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origin_coordinates = Coordinate(orig_lon, orig_lat)
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dest_lat = plpy.execute("SELECT ST_Y('%s') AS lat" % destination)[0]['lat']
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dest_lon = plpy.execute("SELECT ST_X('%s') AS lon" % destination)[0]['lon']
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dest_coordinates = Coordinate(dest_lon, dest_lat)
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resp = client.calculate_route_point_to_point(origin_coordinates, dest_coordinates, mode, options, units)
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if resp:
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shape_linestring = polyline_to_linestring(resp.shape)
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quota_service.increment_success_service_use()
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return [shape_linestring, resp.length, resp.duration]
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else:
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quota_service.increment_empty_service_use()
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except BaseException as e:
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import sys, traceback
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type_, value_, traceback_ = sys.exc_info()
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quota_service.increment_failed_service_use()
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error_msg = 'There was an error trying to obtain route using mapzen provider: {0}'.format(e)
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plpy.notice(traceback.format_tb(traceback_))
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plpy.error(error_msg)
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finally:
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quota_service.increment_total_service_use()
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$$ LANGUAGE plpythonu SECURITY DEFINER;
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