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# Software Management Providers
#
# Copyright (C) 2012-2013 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: Michal Minar <miminar@redhat.com>
#
"""Python Provider for LMI_SoftwareFileCheck
Instruments the CIM class LMI_SoftwareFileCheck
"""
import pywbem
from pywbem.cim_provider2 import CIMProvider2
from openlmi.common import cmpi_logging
from openlmi.software.core import SoftwareFileCheck
from openlmi.software.yumdb import YumDB
class LMI_SoftwareFileCheck(CIMProvider2):
"""Instrument the CIM class LMI_SoftwareFileCheck
Identifies a file contained by RPM package. It's located in directory
identified in FileName. The Invoke methods check for file existence
and whether its attributes match those given by RPM package.
"""
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.getInstance():
pkg_info, pkg_check, pkg_file = \
SoftwareFileCheck.object_path2pkg_file(model.path)
return SoftwareFileCheck.filecheck2model(
pkg_info, pkg_check, pkg_file.path, keys_only=False)
@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)
"""
# this won't be supported because of enormous amount of data
raise pywbem.CIMError(pywbem.CIM_ERR_NOT_SUPPORTED)
@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)
@cmpi_logging.trace_method
def cim_method_invoke(self, env, object_name):
"""Implements LMI_SoftwareFileCheck.Invoke()
The Invoke method evaluates this Check. The details of the
evaluation are described by the specific subclasses of CIM_Check.
When the SoftwareElement being checked is already installed, the
CIM_InstalledSoftwareElement association identifies the
CIM_ComputerSystem in whose context the Invoke is executed. If
this association is not in place, then the InvokeOnSystem method
should be used - since it identifies the TargetSystem as an input
parameter of the method. \nThe results of the Invoke method are
based on the return value. A zero is returned if the condition is
satisfied. A one is returned if the method is not supported. Any
other value indicates the condition is not satisfied.
Keyword arguments:
env -- Provider Environment (pycimmb.ProviderEnvironment)
object_name -- A pywbem.CIMInstanceName or pywbem.CIMCLassName
specifying the object on which the method Invoke()
should be invoked.
Returns a two-tuple containing the return value (type pywbem.Uint32)
and a list of CIMParameter objects representing the output parameters
Output parameters: none
Possible Errors:
CIM_ERR_ACCESS_DENIED
CIM_ERR_INVALID_PARAMETER (including missing, duplicate,
unrecognized or otherwise incorrect parameters)
CIM_ERR_NOT_FOUND (the target CIM Class or instance does not
exist in the specified namespace)
CIM_ERR_METHOD_NOT_AVAILABLE (the CIM Server is unable to honor
the invocation request)
CIM_ERR_FAILED (some other unspecified error occurred)
"""
with YumDB.getInstance():
_, pkg_check, pkg_file = \
SoftwareFileCheck.object_path2pkg_file(object_name)
sfc = SoftwareFileCheck.test_file(
pkg_check.file_checksum_type, pkg_file)
out_params = []
ret = 0 if SoftwareFileCheck.filecheck_passed(sfc) else 2
return (pywbem.Uint32(ret), out_params)
@cmpi_logging.trace_method
def cim_method_invokeonsystem(self, env, object_name,
param_targetsystem=None):
"""Implements LMI_SoftwareFileCheck.InvokeOnSystem()
The InvokeOnSystem method evaluates this Check. The details of the
evaluation are described by the specific subclasses of CIM_Check.
The method\'s TargetSystem input parameter specifies the
ComputerSystem in whose context the method is invoked. \nThe
results of the InvokeOnSystem method are based on the return
value. A zero is returned if the condition is satisfied. A one is
returned if the method is not supported. Any other value indicates
the condition is not satisfied.
Keyword arguments:
env -- Provider Environment (pycimmb.ProviderEnvironment)
object_name -- A pywbem.CIMInstanceName or pywbem.CIMCLassName
specifying the object on which the method InvokeOnSystem()
should be invoked.
param_targetsystem -- The input parameter TargetSystem (
type REF (pywbem.CIMInstanceName(
classname='CIM_ComputerSystem', ...))
Reference to ComputerSystem in whose context the method is to
be invoked.
Returns a two-tuple containing the return value (type pywbem.Uint32)
and a list of CIMParameter objects representing the output parameters
Output parameters: none
Possible Errors:
CIM_ERR_ACCESS_DENIED
CIM_ERR_INVALID_PARAMETER (including missing, duplicate,
unrecognized or otherwise incorrect parameters)
CIM_ERR_NOT_FOUND (the target CIM Class or instance does not
exist in the specified namespace)
CIM_ERR_METHOD_NOT_AVAILABLE (the CIM Server is unable to honor
the invocation request)
CIM_ERR_FAILED (some other unspecified error occurred)
"""
# TODO do something
raise pywbem.CIMError(pywbem.CIM_ERR_METHOD_NOT_AVAILABLE)
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