82 lines
2.2 KiB
Python
82 lines
2.2 KiB
Python
# Copyright 2014 Hewlett-Packard
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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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import MySQLdb as mdb
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from oslo_config import cfg
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from oslo_log import log
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from monasca_events_api.common.repositories import exceptions
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LOG = log.getLogger(__name__)
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class MySQLRepository(object):
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def __init__(self):
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try:
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super(MySQLRepository, self).__init__()
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self.conf = cfg.CONF
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self.database_name = self.conf.mysql.database_name
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self.database_server = self.conf.mysql.hostname
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self.database_uid = self.conf.mysql.username
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self.database_pwd = self.conf.mysql.password
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except Exception as ex:
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LOG.exception(ex)
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raise exceptions.RepositoryException(ex)
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def _get_cnxn_cursor_tuple(self):
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cnxn = mdb.connect(self.database_server, self.database_uid,
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self.database_pwd, self.database_name,
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use_unicode=True, charset='utf8')
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cursor = cnxn.cursor(mdb.cursors.DictCursor)
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return cnxn, cursor
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def _execute_query(self, query, parms):
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cnxn, cursor = self._get_cnxn_cursor_tuple()
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with cnxn:
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cursor.execute(query, parms)
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return cursor.fetchall()
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def mysql_try_catch_block(fun):
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def try_it(*args, **kwargs):
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try:
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return fun(*args, **kwargs)
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except exceptions.DoesNotExistException:
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raise
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except exceptions.InvalidUpdateException:
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raise
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except exceptions.AlreadyExistsException:
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raise
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except Exception as ex:
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LOG.exception(ex)
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raise exceptions.RepositoryException(ex)
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return try_it
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