Refactor python library to unify and rename as cdb_services

server/extension/cdb_geocoder_server--0.2.0--0.1.0.sql

@@ -1,3 +1,60 @@
+-- Get the Redis configuration from the _conf table --
+CREATE OR REPLACE FUNCTION cdb_geocoder_server._get_geocoder_config(username text, orgname text)
+RETURNS boolean AS $$
+  cache_key = "user_geocoder_config_{0}".format(username)
+  if cache_key in GD:
+    return False
+  else:
+    import json
+    from cartodb_geocoder import config_helper
+    plpy.execute("SELECT cdb_geocoder_server._connect_to_redis('{0}')".format(username))
+    redis_conn = GD["redis_connection_{0}".format(username)]['redis_metadata_connection']
+    heremaps_conf_json = plpy.execute("SELECT cartodb.CDB_Conf_GetConf('heremaps_conf') as heremaps_conf", 1)[0]['heremaps_conf']
+    if not heremaps_conf_json:
+      heremaps_app_id = None
+      heremaps_app_code = None
+    else:
+      heremaps_conf = json.loads(heremaps_conf_json)
+      heremaps_app_id = heremaps_conf['app_id']
+      heremaps_app_code = heremaps_conf['app_code']
+    geocoder_config = config_helper.GeocoderConfig(redis_conn, username, orgname, heremaps_app_id, heremaps_app_code)
+    # --Think about the security concerns with this kind of global cache, it should be only available
+    # --for this user session but...
+    GD[cache_key] = geocoder_config
+    return True
+$$ 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 $$
+  cache_key = "redis_connection_{0}".format(user_id)
+  if cache_key in GD:
+    return False
+  else:
+    from cartodb_geocoder import redis_helper
+    metadata_config_params = plpy.execute("""select c.sentinel_host, c.sentinel_port,
+        c.sentinel_master_id, c.timeout, c.redis_db
+        from cdb_geocoder_server._get_redis_conf_v2('redis_metadata_config') c;""")[0]
+    metrics_config_params = plpy.execute("""select c.sentinel_host, c.sentinel_port,
+        c.sentinel_master_id, c.timeout, c.redis_db
+        from cdb_geocoder_server._get_redis_conf_v2('redis_metrics_config') c;""")[0]
+    redis_metadata_connection = redis_helper.RedisHelper(metadata_config_params['sentinel_host'],
+        metadata_config_params['sentinel_port'],
+        metadata_config_params['sentinel_master_id'],
+        timeout=metadata_config_params['timeout'],
+        redis_db=metadata_config_params['redis_db']).redis_connection()
+    redis_metrics_connection = redis_helper.RedisHelper(metrics_config_params['sentinel_host'],
+        metrics_config_params['sentinel_port'],
+        metrics_config_params['sentinel_master_id'],
+        timeout=metrics_config_params['timeout'],
+        redis_db=metrics_config_params['redis_db']).redis_connection()
+    GD[cache_key] = {
+      'redis_metadata_connection': redis_metadata_connection,
+      'redis_metrics_connection': redis_metrics_connection,
+    }
+    return True
+$$ LANGUAGE plpythonu;
+
 CREATE OR REPLACE FUNCTION cdb_geocoder_server._cdb_here_geocode_street_point(username TEXT, orgname TEXT, searchtext TEXT, city TEXT DEFAULT NULL, state_province TEXT DEFAULT NULL, country TEXT DEFAULT NULL)
 RETURNS Geometry AS $$
   from heremaps import heremapsgeocoder