dataservices-api/server/extension/sql/0.0.1/10_redis_helper.sql
2016-01-20 16:02:16 +01:00

45 lines
1.7 KiB
PL/PgSQL

CREATE TYPE cdb_geocoder_server._redis_conf_params AS (
sentinel_host text,
sentinel_port int,
sentinel_master_id text,
redis_db text,
timeout float
);
-- Get the Redis configuration from the _conf table --
CREATE OR REPLACE FUNCTION cdb_geocoder_server._get_redis_conf()
RETURNS cdb_geocoder_server._redis_conf_params AS $$
conf = plpy.execute("SELECT cartodb.CDB_Conf_GetConf('redis_conf') conf")[0]['conf']
if conf is None:
plpy.error("There is no redis configuration defined")
else:
import json
params = json.loads(conf)
return {
"sentinel_host": params['sentinel_host'],
"sentinel_port": params['sentinel_port'],
"sentinel_master_id": params['sentinel_master_id'],
"timeout": params['timeout'],
"redis_db": params['redis_db']
}
$$ LANGUAGE plpythonu;
-- Get the connection to redis from cache or create a new one
CREATE OR REPLACE FUNCTION cdb_geocoder_server._connect_to_redis(user_id text)
RETURNS boolean AS $$
if user_id in GD and 'redis_connection' in GD[user_id]:
return False
else:
from cartodb_geocoder import redis_helper
config_params = plpy.execute("""select c.sentinel_host, c.sentinel_port,
c.sentinel_master_id, c.timeout, c.redis_db
from cdb_geocoder_server._get_redis_conf() c;""")[0]
redis_connection = redis_helper.RedisHelper(config_params['sentinel_host'],
config_params['sentinel_port'],
config_params['sentinel_master_id'],
timeout=config_params['timeout'],
redis_db=config_params['redis_db']).redis_connection()
GD[user_id] = {'redis_connection': redis_connection}
return True
$$ LANGUAGE plpythonu;