65 lines
2.3 KiB
PL/PgSQL
65 lines
2.3 KiB
PL/PgSQL
CREATE TYPE cdb_dataservices_server.simple_route AS (
|
|
shape geometry(LineString,4326),
|
|
length real,
|
|
duration integer
|
|
);
|
|
|
|
CREATE OR REPLACE FUNCTION cdb_dataservices_server._cdb_mapzen_route_with_waypoints(
|
|
username TEXT,
|
|
orgname TEXT,
|
|
waypoints geometry(Point, 4326)[],
|
|
mode TEXT,
|
|
options text[] DEFAULT ARRAY[]::text[],
|
|
units text DEFAULT 'kilometers')
|
|
RETURNS cdb_dataservices_server.simple_route AS $$
|
|
import json
|
|
from cartodb_services.mapzen import MapzenRouting, MapzenRoutingResponse
|
|
from cartodb_services.mapzen.types import polyline_to_linestring
|
|
from cartodb_services.metrics import QuotaService
|
|
from cartodb_services.tools import Coordinate
|
|
from cartodb_services.tools import Logger
|
|
|
|
redis_conn = GD["redis_connection_{0}".format(username)]['redis_metrics_connection']
|
|
user_routing_config = GD["user_routing_config_{0}".format(username)]
|
|
|
|
logger = Logger(user_routing_config)
|
|
|
|
quota_service = QuotaService(user_routing_config, redis_conn)
|
|
if not quota_service.check_user_quota():
|
|
raise Exception('You have reached the limit of your quota')
|
|
|
|
try:
|
|
client = MapzenRouting(user_routing_config.mapzen_api_key, logger)
|
|
|
|
if not waypoints or len(waypoints) < 2:
|
|
logger.notice("Empty origin or destination")
|
|
quota_service.increment_empty_service_use()
|
|
return [None, None, None]
|
|
|
|
waypoint_coords = []
|
|
for waypoint in waypoints:
|
|
lat = plpy.execute("SELECT ST_Y('%s') AS lat" % waypoint)[0]['lat']
|
|
lon = plpy.execute("SELECT ST_X('%s') AS lon" % waypoint)[0]['lon']
|
|
waypoint_coords.append(Coordinate(lon,lat))
|
|
|
|
resp = client.calculate_route_point_to_point(waypoint_coords, mode, options, units)
|
|
if resp and resp.shape:
|
|
shape_linestring = polyline_to_linestring(resp.shape)
|
|
if shape_linestring:
|
|
quota_service.increment_success_service_use()
|
|
return [shape_linestring, resp.length, resp.duration]
|
|
else:
|
|
quota_service.increment_empty_service_use()
|
|
return [None, None, None]
|
|
else:
|
|
quota_service.increment_empty_service_use()
|
|
return [None, None, None]
|
|
except BaseException as e:
|
|
import sys
|
|
quota_service.increment_failed_service_use()
|
|
logger.error('Error trying to get mapzen routing', sys.exc_info())
|
|
raise e
|
|
finally:
|
|
quota_service.increment_total_service_use()
|
|
$$ LANGUAGE plpythonu SECURITY DEFINER;
|