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# -------------------------------------------------------------------------
# Copyright (c) 2015-2017 AT&T Intellectual Property
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# -------------------------------------------------------------------------
#
import cx_Oracle
from osdf.utils.programming_utils import MetaSingleton
class OracleDB(metaclass=MetaSingleton):
conn, cur = None, None
def connect(self, host=None, sid=None, user=None, passwd=None, port=5432):
if self.conn is None:
tns_info = cx_Oracle.makedsn(host=host, port=port, sid=sid)
self.conn = cx_Oracle.connect(user=user, password=passwd, dsn=tns_info, threaded=True)
self.cur = self.conn.cursor()
return self.conn, self.cur
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