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#
# This file is part of Checkbox.
#
# Copyright 2008 Canonical Ltd.
#
# Checkbox is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 3,
# as published by the Free Software Foundation.
#
# Checkbox 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 Checkbox. If not, see <http://www.gnu.org/licenses/>.
#
from checkbox.contrib.persist import Persist
from checkbox.properties import Path
from checkbox.plugin import Plugin
class PersistInfo(Plugin):
# Filename where to persist information
filename = Path(default="%(checkbox_data)s/plugins.bpickle")
def register(self, manager):
super(PersistInfo, self).register(manager)
self.persist = None
for (rt, rh) in [
("begin", self.begin),
("prompt-begin", self.begin),
("prompt-job", self.save),
("report-jobs", self.save)]:
self._manager.reactor.call_on(rt, rh, -100)
# Save persist data last
self._manager.reactor.call_on("stop", self.save, 900)
#This should fire first thing during the gathering phase.
self._manager.reactor.call_on("gather", self.begin_gather, -900)
#This should fire last during gathering (i.e. after
#all other gathering callbacks are finished)
self._manager.reactor.call_on("gather", self.end_gather, 900)
def begin(self, interface=None):
if self.persist is None:
self.persist = Persist(self.filename)
self._manager.reactor.fire("begin-persist", self.persist)
def save(self, *args):
# Flush data to disk
if self.persist:
self.persist.save()
def begin_gather(self):
#Speed boost during the gathering phase. Not critical data anyway.
self.persist._backend.safe_file_closing = False
def end_gather(self):
#Back to saving data very carefully once gathering is done.
self.persist._backend.safe_file_closing = True
factory = PersistInfo
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