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# Software Management Providers
#
# Copyright (C) 2012 Red Hat, Inc. All rights reserved.
#
# 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 2 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/>.
"""Python Provider for LMI_SoftwarePackageChecks
Instruments the CIM class LMI_SoftwarePackageChecks
"""
import pywbem
from pywbem.cim_provider2 import CIMProvider2
from LMI_SoftwareFileCheck import filecheck2model
from LMI_SoftwarePackage import pkg2model
from util.common import *
class LMI_SoftwarePackageChecks(CIMProvider2):
"""Instrument the CIM class LMI_SoftwarePackageChecks
This association ties a SoftwareElement to a specific Check to validate
its state or its movement to the next state. Note that
SoftwareElements in a running state cannot transition to another
state. Therefore, the value of the Phase property is restricted to 0
("In-State") for SoftwareElements in the running state.
"""
def __init__ (self, env):
logger = env.get_logger()
logger.log_debug('Initializing provider %s from %s' \
% (self.__class__.__name__, __file__))
def get_instance(self, env, model):
"""Return an instance.
Keyword arguments:
env -- Provider Environment (pycimmb.ProviderEnvironment)
model -- A template of the pywbem.CIMInstance to be returned. The
key properties are set on this instance to correspond to the
instanceName that was requested. The properties of the model
are already filtered according to the PropertyList from the
request. Only properties present in the model need to be
given values. If you prefer, you can set all of the
values, and the instance will be filtered for you.
Possible Errors:
CIM_ERR_ACCESS_DENIED
CIM_ERR_INVALID_PARAMETER (including missing, duplicate, unrecognized
or otherwise incorrect parameters)
CIM_ERR_NOT_FOUND (the CIM Class does exist, but the requested CIM
Instance does not exist in the specified namespace)
CIM_ERR_FAILED (some other unspecified error occurred)
"""
logger = env.get_logger()
logger.log_debug('Entering %s.get_instance()' \
% self.__class__.__name__)
if not "Check" in model:
raise pywbem.CIMError(pywbem.CIM_ERR_NOT_FOUND,
"Missing Check property.")
if not "Element" in model:
raise pywbem.CIMError(pywbem.CIM_ERR_NOT_FOUND,
"Missing Element property.")
vpkg = SoftwareFileCheck.object_path2yumcheck(env, model['Check'])
model['Check'] = filecheck2model(vpkg, model['Check']['Name'],
env, keys_only=True)
model['Element'] = pkg2model(env, vpkg.po, keys_only=True)
return model
def enum_instances(self, env, model, keys_only):
"""Enumerate instances.
The WBEM operations EnumerateInstances and EnumerateInstanceNames
are both mapped to this method.
This method is a python generator
Keyword arguments:
env -- Provider Environment (pycimmb.ProviderEnvironment)
model -- A template of the pywbem.CIMInstances to be generated.
The properties of the model are already filtered according to
the PropertyList from the request. Only properties present in
the model need to be given values. If you prefer, you can
always set all of the values, and the instance will be filtered
for you.
keys_only -- A boolean. True if only the key properties should be
set on the generated instances.
Possible Errors:
CIM_ERR_FAILED (some other unspecified error occurred)
"""
logger = env.get_logger()
logger.log_debug('Entering %s.enum_instances()' \
% self.__class__.__name__)
# Prime model.path with knowledge of the keys, so key values on
# the CIMInstanceName (model.path) will automatically be set when
# we set property values on the model.
model.path.update({'Check': None, 'Element': None})
while False: # TODO more instances?
# TODO fetch system resource
# Key properties
#model['Check'] = pywbem.CIMInstanceName(classname='LMI_SoftwareFileCheck', ...) # TODO (type = REF (pywbem.CIMInstanceName(classname='LMI_SoftwareFileCheck', ...))
#model['Element'] = pywbem.CIMInstanceName(classname='LMI_SoftwarePackage', ...) # TODO (type = REF (pywbem.CIMInstanceName(classname='LMI_SoftwarePackage', ...))
if keys_only:
yield model
else:
try:
yield self.get_instance(env, model)
except pywbem.CIMError, (num, msg):
if num not in (pywbem.CIM_ERR_NOT_FOUND,
pywbem.CIM_ERR_ACCESS_DENIED):
raise
def set_instance(self, env, instance, modify_existing):
"""Return a newly created or modified instance.
Keyword arguments:
env -- Provider Environment (pycimmb.ProviderEnvironment)
instance -- The new pywbem.CIMInstance. If modifying an existing
instance, the properties on this instance have been filtered by
the PropertyList from the request.
modify_existing -- True if ModifyInstance, False if CreateInstance
Return the new instance. The keys must be set on the new instance.
Possible Errors:
CIM_ERR_ACCESS_DENIED
CIM_ERR_NOT_SUPPORTED
CIM_ERR_INVALID_PARAMETER (including missing, duplicate, unrecognized
or otherwise incorrect parameters)
CIM_ERR_ALREADY_EXISTS (the CIM Instance already exists -- only
valid if modify_existing is False, indicating that the operation
was CreateInstance)
CIM_ERR_NOT_FOUND (the CIM Instance does not exist -- only valid
if modify_existing is True, indicating that the operation
was ModifyInstance)
CIM_ERR_FAILED (some other unspecified error occurred)
"""
logger = env.get_logger()
logger.log_debug('Entering %s.set_instance()' \
% self.__class__.__name__)
# TODO create or modify the instance
raise pywbem.CIMError(pywbem.CIM_ERR_NOT_SUPPORTED) # Remove to implement
return instance
def delete_instance(self, env, instance_name):
"""Delete an instance.
Keyword arguments:
env -- Provider Environment (pycimmb.ProviderEnvironment)
instance_name -- A pywbem.CIMInstanceName specifying the instance
to delete.
Possible Errors:
CIM_ERR_ACCESS_DENIED
CIM_ERR_NOT_SUPPORTED
CIM_ERR_INVALID_NAMESPACE
CIM_ERR_INVALID_PARAMETER (including missing, duplicate, unrecognized
or otherwise incorrect parameters)
CIM_ERR_INVALID_CLASS (the CIM Class does not exist in the specified
namespace)
CIM_ERR_NOT_FOUND (the CIM Class does exist, but the requested CIM
Instance does not exist in the specified namespace)
CIM_ERR_FAILED (some other unspecified error occurred)
"""
logger = env.get_logger()
logger.log_debug('Entering %s.delete_instance()' \
% self.__class__.__name__)
# TODO delete the resource
raise pywbem.CIMError(pywbem.CIM_ERR_NOT_SUPPORTED) # Remove to implement
def references(self, env, object_name, model, result_class_name, role,
result_role, keys_only):
"""Instrument Associations.
All four association-related operations (Associators, AssociatorNames,
References, ReferenceNames) are mapped to this method.
This method is a python generator
Keyword arguments:
env -- Provider Environment (pycimmb.ProviderEnvironment)
object_name -- A pywbem.CIMInstanceName that defines the source
CIM Object whose associated Objects are to be returned.
model -- A template pywbem.CIMInstance to serve as a model
of the objects to be returned. Only properties present on this
model need to be set.
result_class_name -- If not empty, this string acts as a filter on
the returned set of Instances by mandating that each returned
Instances MUST represent an association between object_name
and an Instance of a Class whose name matches this parameter
or a subclass.
role -- If not empty, MUST be a valid Property name. It acts as a
filter on the returned set of Instances by mandating that each
returned Instance MUST refer to object_name via a Property
whose name matches the value of this parameter.
result_role -- If not empty, MUST be a valid Property name. It acts
as a filter on the returned set of Instances by mandating that
each returned Instance MUST represent associations of
object_name to other Instances, where the other Instances play
the specified result_role in the association (i.e. the
name of the Property in the Association Class that refers to
the Object related to object_name MUST match the value of this
parameter).
keys_only -- A boolean. True if only the key properties should be
set on the generated instances.
The following diagram may be helpful in understanding the role,
result_role, and result_class_name parameters.
+------------------------+ +-------------------+
| object_name.classname | | result_class_name |
| ~~~~~~~~~~~~~~~~~~~~~ | | ~~~~~~~~~~~~~~~~~ |
+------------------------+ +-------------------+
| +-----------------------------------+ |
| | [Association] model.classname | |
| object_name | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
+--------------+ object_name.classname REF role | |
(CIMInstanceName) | result_class_name REF result_role +------+
| |(CIMInstanceName)
+-----------------------------------+
Possible Errors:
CIM_ERR_ACCESS_DENIED
CIM_ERR_NOT_SUPPORTED
CIM_ERR_INVALID_NAMESPACE
CIM_ERR_INVALID_PARAMETER (including missing, duplicate, unrecognized
or otherwise incorrect parameters)
CIM_ERR_FAILED (some other unspecified error occurred)
"""
logger = env.get_logger()
logger.log_debug('Entering %s.references()' \
% self.__class__.__name__)
ch = env.get_cimom_handle()
# Prime model.path with knowledge of the keys, so key values on
# the CIMInstanceName (model.path) will automatically be set when
# we set property values on the model.
model.path.update({'Check': None, 'Element': None})
with YumDB.getInstance(env):
if ( (not role or role.lower() == 'element')
and ch.is_subclass(object_name.namespace,
sub=object_name.classname,
super='LMI_SoftwarePackage')):
filecheck_model = pywbem.CIMInstanceName(
classname='LMI_SoftwareFileCheck',
namespace="root/cimv2",
host=model.path.host)
model['Element'] = object_name
pkg = SoftwarePackage.object_path2pkg(env, object_name)
vpkg = yum.packages._RPMVerifyPackage(
pkg, pkg.hdr.fiFromHeader(),
SoftwareFileCheck.pkg_checksum_type(pkg), [], True)
for fc in vpkg:
model['Check'] = filecheck2model(
vpkg, fc.filename, env, keys_only=True,
model=filecheck_model)
yield model
if ( (not role or role.lower() == 'check')
and ch.is_subclass(object_name.namespace,
sub=object_name.classname,
super='LMI_SoftwareFileCheck')):
model['Check'] = object_name
vpkg = SoftwareFileCheck.object_path2yumcheck(env, object_name)
model['Element'] = pkg2model(
env, vpkg.po, keys_only=True)
yield model
class Values(object):
class Phase(object):
In_State = pywbem.Uint16(0)
Next_State = pywbem.Uint16(1)
## end of class LMI_SoftwarePackageChecksProvider
## get_providers() for associating CIM Class Name to python provider class name
def get_providers(env):
lmi_softwarepackagechecks_prov = LMI_SoftwarePackageChecks(env)
return {'LMI_SoftwarePackageChecks': lmi_softwarepackagechecks_prov}
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