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# -*- encoding: utf-8 -*-
# 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_SoftwarePackage
Instruments the CIM class LMI_SoftwarePackage
"""
import pywbem
from pywbem.cim_provider2 import CIMProvider2
from openlmi.common import cmpi_logging
from openlmi.software.core import SoftwarePackage
from openlmi.software.yumdb import YumDB
class LMI_SoftwarePackage(CIMProvider2):
"""Instrument the CIM class LMI_SoftwarePackage
RPM package installed on particular computer system with YUM (The
Yellowdog Updated, Modified) package manager.
"""
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 = SoftwarePackage.object_path2pkg(model.path, 'all')
return SoftwarePackage.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({'TargetOperatingSystem': None, 'Version': None,
'SoftwareElementState': None, 'Name': None,
'SoftwareElementID': None})
with YumDB.getInstance() as ydb:
# get all packages
pkglist = ydb.get_package_list('all',
allow_duplicates=True, sort=True)
for pkg in pkglist:
yield SoftwarePackage.pkg2model(pkg,
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)
@cmpi_logging.trace_method
def cim_method_install(self, env, object_name):
"""Implements LMI_SoftwarePackage.Install()
Will install available package.
Keyword arguments:
env -- Provider Environment (pycimmb.ProviderEnvironment)
object_name -- A pywbem.CIMInstanceName or pywbem.CIMCLassName
specifying the object on which the method Update()
should be invoked.
Returns a two-tuple containing the return value (
type pywbem.Uint32 SoftwarePackage.Values.Install)
and a list of CIMParameter objects representing the output parameters
Output parameters:
Installed -- (type REF (pywbem.CIMInstanceName(
classname='LMI_SoftwareInstalledPackage', ...))
The reference to newly installed package, if installation was
successful. Null otherwise.
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() as ydb:
# get available packages
pkg_info = SoftwarePackage.object_path2pkg_search(object_name)
out_params = [ pywbem.CIMParameter('Installed', type='reference') ]
if pkg_info.installed:
out_params[0].value = SoftwarePackage.pkg2model(
pkg_info, keys_only=True)
return ( SoftwarePackage.Values.Install.Already_installed
, out_params)
cmpi_logging.logger.info('installing package %s' % pkg_info)
installed_pkg = ydb.install_package(pkg_info)
cmpi_logging.logger.info('package %s installed' % pkg_info)
out_params[0].value = SoftwarePackage.pkg2model(
installed_pkg, keys_only=True)
return ( SoftwarePackage.Values.Install.Successful_installation
, out_params)
@cmpi_logging.trace_method
def cim_method_remove(self, env, object_name):
"""Implements LMI_SoftwarePackage.Remove()
Will uninstall installed package.
Keyword arguments:
env -- Provider Environment (pycimmb.ProviderEnvironment)
object_name -- A pywbem.CIMInstanceName or pywbem.CIMCLassName
specifying the object on which the method Remove()
should be invoked.
Returns a two-tuple containing the return value (
type pywbem.Uint32 SoftwarePackage.Values.Remove)
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() as ydb:
pkg_info = SoftwarePackage.object_path2pkg(object_name, 'all')
if pkg_info.installed:
cmpi_logging.logger.info('removing package %s' % pkg_info)
ydb.remove_package(pkg_info)
cmpi_logging.logger.info('package %s removed' % pkg_info)
rval = SoftwarePackage.Values.Remove.Successful_removal
else:
rval = SoftwarePackage.Values.Remove.Not_installed
return (rval, [])
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