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# Authors:
# Rob Crittenden <rcritten@redhat.com>
# Jason Gerard DeRose <jderose@redhat.com>
#
# Copyright (C) 2008 Red Hat
# see file 'COPYING' for use and warranty contextrmation
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
Per-request thread-local data.
"""
import threading
from ipalib.base import ReadOnly, lock
from ipalib.constants import CALLABLE_ERROR
# Thread-local storage of most per-request information
context = threading.local()
class Connection(ReadOnly):
"""
Base class for connection objects stored on `request.context`.
"""
def __init__(self, conn, disconnect):
self.conn = conn
if not callable(disconnect):
raise TypeError(
CALLABLE_ERROR % ('disconnect', disconnect, type(disconnect))
)
self.disconnect = disconnect
lock(self)
def destroy_context():
"""
Delete all attributes on thread-local `request.context`.
"""
# need to use a list of values, 'cos value.disconnect modifies the dict
for value in list(context.__dict__.values()):
if isinstance(value, Connection):
value.disconnect()
context.__dict__.clear()
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