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"""
Serializer code for cobbler
Now adapted to support different storage backends
Copyright 2006-2007, Red Hat, Inc
Michael DeHaan <mdehaan@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.
"""
import errno
import os
from rhpl.translate import _, N_, textdomain, utf8
import yaml # Howell-Clark version
from cexceptions import *
import utils
import api as cobbler_api
MODULE_CACHE = {}
def serialize(obj):
"""
Save a collection to disk or other storage.
"""
storage_module = __get_storage_module(obj.collection_type())
storage_module.serialize(obj)
return True
def deserialize(obj,topological=False):
"""
Fill in an empty collection from disk or other storage
"""
storage_module = __get_storage_module(obj.collection_type())
return storage_module.deserialize(obj,topological)
def __get_storage_module(collection_type):
if MODULE_CACHE.has_key(collection_type):
return MODULE_CACHE[collection_type]
config = cobbler_api.BootAPI()._config
settings = config.settings()
storage_module_name = settings.storage_modules.get(collection_type, None)
if not storage_module_name:
raise CX(_("Storage module not set for objects of type %s") % collection_type)
storage_module = config.modules.get(storage_module_name, None)
if not storage_module:
raise CX(_("Storage module %s not present") % storage_module_name)
MODULE_CACHE[collection_type] = storage_module
return storage_module
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