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# Copyright 2019 Catalyst Cloud Ltd.
#
# 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 time
from oslo_log import log as logging
from psycopg2.extensions import ISOLATION_LEVEL_AUTOCOMMIT
import sqlalchemy
from sqlalchemy import text
from tempest.lib import exceptions
LOG = logging.getLogger(__name__)
def wait_for_removal(delete_func, show_func, *args, **kwargs):
"""Call the delete function, then wait for it to be 'NotFound'
:param delete_func: The delete function to call.
:param show_func: The show function to call looking for 'NotFound'.
:param ID: The ID of the object to delete/show.
:raises TimeoutException: The object did not achieve the status or ERROR in
the check_timeout period.
:returns: None
"""
check_timeout = 15
try:
delete_func(*args, **kwargs)
except exceptions.NotFound:
return
start = int(time.time())
LOG.info('Waiting for object to be NotFound')
while True:
try:
show_func(*args, **kwargs)
except exceptions.NotFound:
return
if int(time.time()) - start >= check_timeout:
message = ('%s did not raise NotFound in %s seconds.' %
(show_func.__name__, check_timeout))
raise exceptions.TimeoutException(message)
time.sleep(3)
def init_engine(db_url):
return sqlalchemy.create_engine(db_url)
class SQLClient(object):
def __init__(self, conn_str):
self.engine = init_engine(conn_str)
def conn_execute(self, conn, cmds):
if isinstance(cmds, str):
result = conn.execute(text(cmds))
return result
for cmd in cmds:
conn.execute(text(cmd))
def pgsql_execute(self, cmds, **kwargs):
try:
with self.engine.connect() as conn:
conn.connection.set_isolation_level(ISOLATION_LEVEL_AUTOCOMMIT)
return self.conn_execute(conn, cmds)
except Exception as e:
raise exceptions.TempestException(
'Failed to execute database command %s, error: %s' %
(cmds, str(e))
)
def mysql_execute(self, cmds, **kwargs):
try:
with self.engine.begin() as conn:
return self.conn_execute(conn, cmds)
except Exception as e:
raise exceptions.TempestException(
'Failed to execute database command %s, error: %s' %
(cmds, str(e))
)
def __enter__(self):
return self
def __exit__(self, exc_type, exc_val, exc_tb):
self.engine.dispose()
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