131 lines
5.2 KiB
PL/PgSQL
131 lines
5.2 KiB
PL/PgSQL
CREATE TYPE cdb_dataservices_server.isoline AS (center geometry(Geometry,4326), data_range integer, the_geom geometry(Multipolygon,4326));
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CREATE OR REPLACE FUNCTION cdb_dataservices_server._cdb_here_routing_isolines(username TEXT, orgname TEXT, type TEXT, source geometry(Geometry, 4326), mode TEXT, data_range integer[], options text[])
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RETURNS SETOF cdb_dataservices_server.isoline AS $$
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import json
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from cartodb_services.here import HereMapsRoutingIsoline
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from cartodb_services.metrics import QuotaService
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from cartodb_services.here.types import geo_polyline_to_multipolygon
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from cartodb_services.tools import Logger,LoggerConfig
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redis_conn = GD["redis_connection_{0}".format(username)]['redis_metrics_connection']
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user_isolines_routing_config = GD["user_isolines_routing_config_{0}".format(username)]
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logger_config = LoggerConfig(plpy)
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logger = Logger(logger_config)
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# -- Check the quota
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quota_service = QuotaService(user_isolines_routing_config, redis_conn)
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if not quota_service.check_user_quota():
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raise Exception('You have reached the limit of your quota')
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try:
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client = HereMapsRoutingIsoline(user_isolines_routing_config.heremaps_app_id,
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user_isolines_routing_config.heremaps_app_code, logger)
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if source:
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lat = plpy.execute("SELECT ST_Y('%s') AS lat" % source)[0]['lat']
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lon = plpy.execute("SELECT ST_X('%s') AS lon" % source)[0]['lon']
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source_str = 'geo!%f,%f' % (lat, lon)
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else:
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source_str = None
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if type == 'isodistance':
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resp = client.calculate_isodistance(source_str, mode, data_range, options)
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elif type == 'isochrone':
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resp = client.calculate_isochrone(source_str, mode, data_range, options)
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if resp:
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result = []
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for isoline in resp:
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data_range_n = isoline['range']
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polyline = isoline['geom']
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multipolygon = geo_polyline_to_multipolygon(polyline)
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result.append([source, data_range_n, multipolygon])
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quota_service.increment_success_service_use()
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quota_service.increment_isolines_service_use(len(resp))
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return result
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else:
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quota_service.increment_empty_service_use()
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return []
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except BaseException as e:
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import sys
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quota_service.increment_failed_service_use()
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logger.error('Error trying to get mapzen isolines', sys.exc_info(), data={"username": username, "orgname": orgname})
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raise Exception('Error trying to get mapzen isolines')
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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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CREATE OR REPLACE FUNCTION cdb_dataservices_server._cdb_mapzen_isolines(
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username TEXT,
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orgname TEXT,
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isotype TEXT,
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source geometry(Geometry, 4326),
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mode TEXT,
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data_range integer[],
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options text[])
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RETURNS SETOF cdb_dataservices_server.isoline AS $$
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import json
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from cartodb_services.mapzen import MatrixClient, MapzenIsolines
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from cartodb_services.metrics import QuotaService
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from cartodb_services.tools import Logger,LoggerConfig
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redis_conn = GD["redis_connection_{0}".format(username)]['redis_metrics_connection']
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user_isolines_routing_config = GD["user_isolines_routing_config_{0}".format(username)]
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logger_config = LoggerConfig(plpy)
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logger = Logger(logger_config)
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# -- Check the quota
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quota_service = QuotaService(user_isolines_routing_config, redis_conn)
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if not quota_service.check_user_quota():
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raise Exception('You have reached the limit of your quota')
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try:
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client = MatrixClient(user_isolines_routing_config.mapzen_matrix_api_key, logger)
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mapzen_isolines = MapzenIsolines(client, logger)
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if source:
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lat = plpy.execute("SELECT ST_Y('%s') AS lat" % source)[0]['lat']
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lon = plpy.execute("SELECT ST_X('%s') AS lon" % source)[0]['lon']
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origin = {'lat': lat, 'lon': lon}
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else:
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raise Exception('source is NULL')
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# -- TODO Support options properly
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isolines = {}
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if isotype == 'isodistance':
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for r in data_range:
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isoline = mapzen_isolines.calculate_isodistance(origin, mode, r)
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isolines[r] = isoline
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elif isotype == 'isochrone':
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for r in data_range:
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isoline = mapzen_isolines.calculate_isochrone(origin, mode, r)
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isolines[r] = isoline
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result = []
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for r in data_range:
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if len(isolines[r]) >= 3:
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# -- TODO encapsulate this block into a func/method
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locations = isolines[r] + [ isolines[r][0] ] # close the polygon repeating the first point
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wkt_coordinates = ','.join(["%f %f" % (l['lon'], l['lat']) for l in locations])
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sql = "SELECT ST_MPolyFromText('MULTIPOLYGON((({0})))', 4326) as geom".format(wkt_coordinates)
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multipolygon = plpy.execute(sql, 1)[0]['geom']
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else:
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multipolygon = None
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result.append([source, r, multipolygon])
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quota_service.increment_success_service_use()
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quota_service.increment_isolines_service_use(len(isolines))
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return result
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except BaseException as e:
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import sys
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quota_service.increment_failed_service_use()
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logger.error('Error trying to get mapzen isolines', sys.exc_info(), data={"username": username, "orgname": orgname})
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raise Exception('Error trying to get mapzen isolines')
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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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