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#!/usr/bin/python
# Virt-factory backend code.
#
# Copyright 2006, Red Hat, Inc
# Michael DeHaan <mdehaan@redhat.com>
# Scott Seago <sseago@redhat.com>
# Adrian Likins <alikins@redhat.com>
#
# This software may be freely redistributed under the terms of the GNU
# general public license.
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
from codes import *
import os
import yaml
CONFIG_FILE = "/etc/virt-factory/settings"
# from the comments in http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/66531
#class Singleton(object):
# def __new__(type):
# if not '_the_instance' in type.__dict__:
# type._the_instance = object.__new__(type)
# return type._the_instance
class Config:
# this class is a Borg
__shared_state = {}
has_read = False
def __init__(self):
self.__dict__ = self.__shared_state
if not self.has_read:
self.read()
print "***** CONFIG RELOAD *****"
Config.has_read = True
def read(self):
if not os.path.exists(CONFIG_FILE):
raise MisconfiguredException(comment="Missing %s" % CONFIG_FILE)
config_file = open(CONFIG_FILE)
data = config_file.read()
self.ds = yaml.load(data).next()
def get(self):
return self.ds
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