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# -*- encoding: utf-8 -*-
# Software Management Providers
#
# Copyright (C) 2012-2013 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_SoftwareIdentity
Instruments the CIM class LMI_SoftwareIdentity
"""
import pywbem
from pywbem.cim_provider2 import CIMProvider2
from openlmi.common import cmpi_logging
from openlmi.software.core import Identity
from openlmi.software.yumdb import YumDB
class LMI_SoftwareIdentity(CIMProvider2):
"""Instrument the CIM class LMI_SoftwareIdentity
SoftwareIdentity provides descriptive information about a software
component for asset tracking and/or installation dependency
management. When the IsEntity property has the value TRUE, the
instance of SoftwareIdentity represents an individually identifiable
entity similar to Physical Element. SoftwareIdentity does NOT indicate
whether the software is installed, executing, etc. This extra
information may be provided through specialized associations to
Software Identity. For instance, both InstalledSoftwareIdentity and
ElementSoftwareIdentity may be used to indicate that the software
identified by this class is installed. SoftwareIdentity is used when
managing the software components of a ManagedElement that is the
management focus. Since software may be acquired, SoftwareIdentity can
be associated with a Product using the ProductSoftwareComponent
relationship. The Application Model manages the deployment and
installation of software via the classes, SoftwareFeatures and
SoftwareElements. SoftwareFeature and SoftwareElement are used when
the software component is the management focus. The
deployment/installation concepts are related to the asset/identity
one. In fact, a SoftwareIdentity may correspond to a Product, or to
one or more SoftwareFeatures or SoftwareElements - depending on the
granularity of these classes and the deployment model. The
correspondence of Software Identity to Product, SoftwareFeature or
SoftwareElement is indicated using the ConcreteIdentity association.
Note that there may not be sufficient detail or instrumentation to
instantiate ConcreteIdentity. And, if the association is instantiated,
some duplication of information may result. For example, the Vendor
described in the instances of Product and SoftwareIdentity MAY be the
same. However, this is not necessarily true, and it is why vendor and
similar information are duplicated in this class. Note that
ConcreteIdentity can also be used to describe the relationship of the
software to any LogicalFiles that result from installing it. As above,
there may not be sufficient detail or instrumentation to instantiate
this association.
"""
def __init__ (self, _env):
cmpi_logging.logger.debug('Initializing provider %s from %s' \
% (self.__class__.__name__, __file__))
@cmpi_logging.trace_method
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)
"""
with YumDB.get_instance():
pkg_info = Identity.object_path2pkg(model.path, 'all')
return Identity.pkg2model(pkg_info, keys_only=False, model=model)
@cmpi_logging.trace_method
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)
"""
# 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({'InstanceID': None})
with YumDB.get_instance() as ydb:
pkglist = ydb.get_package_list(
'all', allow_duplicates=True, sort=True)
for pkg_info in pkglist:
yield Identity.pkg2model(pkg_info, keys_only=keys_only, model=model)
@cmpi_logging.trace_method
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)
"""
raise pywbem.CIMError(pywbem.CIM_ERR_NOT_SUPPORTED)
@cmpi_logging.trace_method
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)
"""
raise pywbem.CIMError(pywbem.CIM_ERR_NOT_SUPPORTED)
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