# Copyright (C) 2012 Red Hat, Inc. All rights reserved.
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
#
# Authors: Jan Safranek <jsafrane@redhat.com>
# -*- coding: utf-8 -*-
""""
Module for LMI_VGAssociatedComponentExtent class.
LMI_VGAssociatedComponentExtent
-------------------------------
.. autoclass:: LMI_VGAssociatedComponentExtent
:members:
"""
from openlmi.storage.BaseProvider import BaseProvider
import pywbem
import blivet
import openlmi.common.cmpi_logging as cmpi_logging
[docs]class LMI_VGAssociatedComponentExtent(BaseProvider):
"""
Implementation of LMI_VGAssociatedComponentExtent class.
"""
@cmpi_logging.trace_method
[docs] def __init__(self, *args, **kwargs):
super(LMI_VGAssociatedComponentExtent, self).__init__(*args, **kwargs)
@cmpi_logging.trace_method
[docs] def enum_instances(self, env, model, keys_only):
"""
Provider implementation of EnumerateInstances intrinsic method.
"""
model.path.update({'GroupComponent': None, 'PartComponent': None})
for vg in self.storage.vgs:
vgprovider = self.provider_manager.get_provider_for_device(vg)
if not vgprovider:
raise pywbem.CIMError(pywbem.CIM_ERR_FAILED,
"Cannot find provider for device " + vg.path)
for pv in vg.pvs:
pvprovider = self.provider_manager.get_provider_for_device(pv)
if not pvprovider:
raise pywbem.CIMError(pywbem.CIM_ERR_FAILED,
"Cannot find provider for device " + pv.path)
model['GroupComponent'] = vgprovider.get_name_for_device(vg)
model['PartComponent'] = pvprovider.get_name_for_device(pv)
if keys_only:
yield model
else:
yield self.get_instance(env, model, vg, pv)
@cmpi_logging.trace_method
# pylint: disable-msg=W0221
[docs] def get_instance(self, env, model, vg=None, pv=None):
"""
Provider implementation of GetInstance intrinsic method.
It just checks if GroupComponent and PartComponent are related.
"""
if not vg:
vg = self.provider_manager.get_device_for_name(
model['GroupComponent'])
if not vg:
raise pywbem.CIMError(pywbem.CIM_ERR_NOT_FOUND,
"Cannot find GroupComponent device")
if not pv:
pv = self.provider_manager.get_device_for_name(
model['PartComponent'])
if not pv:
raise pywbem.CIMError(pywbem.CIM_ERR_NOT_FOUND,
"Cannot find PartComponent device")
if not isinstance(vg, blivet.devices.LVMVolumeGroupDevice):
raise pywbem.CIMError(pywbem.CIM_ERR_NOT_FOUND,
"GroupComponent device is not volume group: " + vg.path)
if not (pv in vg.pvs):
raise pywbem.CIMError(pywbem.CIM_ERR_NOT_FOUND,
"GroupComponent is not related to PartComponent device")
return model
@cmpi_logging.trace_method
[docs] def references(self, env, object_name, model, result_class_name, role,
result_role, keys_only):
"""Instrument Associations."""
return self.simple_references(env, object_name, model,
result_class_name, role, result_role, keys_only,
"CIM_StorageExtent",
"CIM_StoragePool")