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# Copyright DataStax, Inc.
#
# 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 unittest
import logging
import sys
import socket
import platform
import os
from concurrent.futures import ThreadPoolExecutor
from cassandra import DependencyException
log = logging.getLogger()
log.setLevel('DEBUG')
# if nose didn't already attach a log handler, add one here
if not log.handlers:
handler = logging.StreamHandler()
handler.setFormatter(logging.Formatter('%(asctime)s %(levelname)s [%(module)s:%(lineno)s]: %(message)s'))
log.addHandler(handler)
def is_eventlet_monkey_patched():
if 'eventlet.patcher' not in sys.modules:
return False
try:
import eventlet.patcher
return eventlet.patcher.is_monkey_patched('socket')
# Yet another case related to PYTHON-1364
except AttributeError:
return False
def is_gevent_monkey_patched():
if 'gevent.monkey' not in sys.modules:
return False
import gevent.socket
return socket.socket is gevent.socket.socket
def is_monkey_patched():
return is_gevent_monkey_patched() or is_eventlet_monkey_patched()
MONKEY_PATCH_LOOP = bool(os.getenv('MONKEY_PATCH_LOOP', False))
EVENT_LOOP_MANAGER = os.getenv('EVENT_LOOP_MANAGER', "libev")
# If set to to true this will force the Cython tests to run regardless of whether they are installed
cython_env = os.getenv('VERIFY_CYTHON', "False")
VERIFY_CYTHON = False
if(cython_env == 'True'):
VERIFY_CYTHON = True
thread_pool_executor_class = ThreadPoolExecutor
if "gevent" in EVENT_LOOP_MANAGER:
import gevent.monkey
gevent.monkey.patch_all()
from cassandra.io.geventreactor import GeventConnection
connection_class = GeventConnection
elif "eventlet" in EVENT_LOOP_MANAGER:
from eventlet import monkey_patch
monkey_patch()
from cassandra.io.eventletreactor import EventletConnection
connection_class = EventletConnection
try:
from futurist import GreenThreadPoolExecutor
thread_pool_executor_class = GreenThreadPoolExecutor
except:
# futurist is installed only with python >=3.7
pass
elif "asyncore" in EVENT_LOOP_MANAGER:
from cassandra.io.asyncorereactor import AsyncoreConnection
connection_class = AsyncoreConnection
elif "twisted" in EVENT_LOOP_MANAGER:
from cassandra.io.twistedreactor import TwistedConnection
connection_class = TwistedConnection
elif "asyncio" in EVENT_LOOP_MANAGER:
from cassandra.io.asyncioreactor import AsyncioConnection
connection_class = AsyncioConnection
else:
log.debug("Using default event loop (libev)")
try:
from cassandra.io.libevreactor import LibevConnection
connection_class = LibevConnection
except DependencyException as e:
log.debug('Could not import LibevConnection, '
'using connection_class=None; '
'failed with error:\n {}'.format(
repr(e)
))
log.debug("Will attempt to set connection class at cluster initialization")
connection_class = None
def is_windows():
return "Windows" in platform.system()
notwindows = unittest.skipUnless(not is_windows(), "This test is not adequate for windows")
notpypy = unittest.skipUnless(not platform.python_implementation() == 'PyPy', "This tests is not suitable for pypy")
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