72 lines
2.1 KiB
Python
72 lines
2.1 KiB
Python
"""
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
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#
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# Copyright 2011 Cisco Systems, Inc. All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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#
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# @author: Sumit Naiksatam, Cisco Systems, Inc.
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#
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"""
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import hashlib
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import logging as LOG
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import MySQLdb
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import traceback
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from quantum.plugins.cisco.common import cisco_constants as const
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from quantum.plugins.cisco.common import cisco_nova_configuration as conf
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LOG.basicConfig(level=LOG.WARN)
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LOG.getLogger(const.LOGGER_COMPONENT_NAME)
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def get16ByteUUID(uuid):
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"""
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Return a 16 byte has of the UUID, used when smaller unique
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ID is required.
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"""
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return hashlib.md5(uuid).hexdigest()[:16]
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class DBUtils(object):
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"""Utilities to use connect to MySQL DB and execute queries"""
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def __init__(self):
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pass
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def _get_db_connection(self):
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"""Get a connection to the DB"""
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db_ip = conf.DB_SERVER_IP
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db_username = conf.DB_USERNAME
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db_password = conf.DB_PASSWORD
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self.db = MySQLdb.connect(db_ip, db_username, db_password,
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conf.DB_NAME)
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return self.db
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def execute_db_query(self, sql_query):
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"""Execute a DB query"""
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db = self._get_db_connection()
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cursor = db.cursor()
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try:
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cursor.execute(sql_query)
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results = cursor.fetchall()
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db.commit()
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LOG.debug("DB query execution succeeded: %s" % sql_query)
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db.close()
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except:
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db.rollback()
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LOG.debug("DB query execution failed: %s" % sql_query)
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traceback.print_exc()
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db.close()
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