diff options
Diffstat (limited to 'lmi/scripts/common/versioncheck/__init__.py')
| -rw-r--r-- | lmi/scripts/common/versioncheck/__init__.py | 146 |
1 files changed, 0 insertions, 146 deletions
diff --git a/lmi/scripts/common/versioncheck/__init__.py b/lmi/scripts/common/versioncheck/__init__.py deleted file mode 100644 index c7e595f..0000000 --- a/lmi/scripts/common/versioncheck/__init__.py +++ /dev/null @@ -1,146 +0,0 @@ -# Copyright (C) 2013-2014 Red Hat, Inc. All rights reserved. -# -# Redistribution and use in source and binary forms, with or without -# modification, are permitted provided that the following conditions are met: -# -# 1. Redistributions of source code must retain the above copyright notice, -# this list of conditions and the following disclaimer. -# 2. Redistributions in binary form must reproduce the above copyright notice, -# this list of conditions and the following disclaimer in the documentation -# and/or other materials provided with the distribution. -# -# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" -# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE -# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR -# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF -# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS -# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN -# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) -# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE -# POSSIBILITY OF SUCH DAMAGE. -# -# The views and conclusions contained in the software and documentation are -# those of the authors and should not be interpreted as representing official -# policies, either expressed or implied, of the FreeBSD Project. -# -# Authors: Michal Minar <miminar@redhat.com> -# -""" -Package with utilities for checking availability of profiles or CIM classes. -Version requirements can also be specified. -""" - -import functools -from pyparsing import ParseException - -from lmi.scripts.common import Configuration -from lmi.scripts.common import errors -from lmi.scripts.common.versioncheck import parser - -def cmp_profiles(fst, snd): - """ - Compare two profiles by their version. - - :returns: - * -1 if the *fst* profile has lower version than *snd* - * 0 if their versions are equal - * 1 otherwise - :rtype: int - """ - fstver = fst.RegisteredVersion - sndver = snd.RegisteredVersion - if fstver == sndver: - return 0 - return -1 if parser.cmp_version(fstver, sndver) else 1 - -def get_profile_version(conn, name, cache=None): - """ - Get version of registered profile on particular broker. Queries - ``CIM_RegisteredProfile`` and ``CIM_RegisteredSubProfile``. The latter - comes in question only when ``CIM_RegisteredProfile`` does not yield any - matching result. - - :param conn: Connection object. - :param string name: Name of the profile which must match value of *RegisteredName* - property. - :param dictionary cache: Optional cache where the result will be stored for - later use. This greatly speeds up evaluation of several expressions refering - to same profiles or classes. - :returns: Version of matching profile found. If there were more of them, - the highest version will be returned. ``None`` will be returned when no matching - profile or subprofile is found. - :rtype: string - """ - if cache and name in cache: - return cache[(conn.uri, name)] - insts = conn.root.interop.wql('SELECT * FROM CIM_RegisteredProfile' - ' WHERE RegisteredName=\"%s\"' % name) - regular = set(i for i in insts if i.classname.endswith('RegisteredProfile')) - if regular: # select instances of PG_RegisteredProfile if available - insts = regular - else: # otherwise fallback to PG_RegisteredSubProfile instances - insts = set(i for i in insts if i not in regular) - if not insts: - ret = None - else: - ret = sorted(insts, cmp=cmp_profiles)[-1].RegisteredVersion - if cache is not None: - cache[(conn.uri, name)] = ret - return ret - -def get_class_version(conn, name, namespace=None, cache=None): - """ - Query broker for version of particular CIM class. Version is stored in - ``Version`` qualifier of particular CIM class. - - :param conn: Connection object. - :param string name: Name of class to query. - :param string namespace: Optional CIM namespace. Defaults to configured namespace. - :param dictionary cache: Optional cache used to speed up expression prrocessing. - :returns: Version of CIM matching class. Empty string if class is registered but - is missing ``Version`` qualifier and ``None`` if it is not registered. - :rtype: string - """ - if namespace is None: - namespace = Configuration.get_instance().namespace - if cache and (namespace, name) in cache: - return cache[(conn.uri, namespace, name)] - ns = conn.get_namespace(namespace) - cls = getattr(ns, name, None) - if not cls: - ret = None - else: - quals = cls.wrapped_object.qualifiers - if 'Version' not in quals: - ret = '' - else: - ret = quals['Version'].value - if cache is not None: - cache[(conn.uri, namespace, name)] = ret - return ret - -def eval_respl(expr, conn, namespace=None, cache=None): - """ - Evaluate LMIReSpL expression on particular broker. - - :param string expr: Expression to evaluate. - :param conn: Connection object. - :param string namespace: Optional CIM namespace where CIM classes will be - searched. - :param dictionary cache: Optional cache speeding up evaluation. - :returns: ``True`` if requirements in expression are satisfied. - :rtype: boolean - """ - if namespace is None: - namespace = Configuration.get_instance().namespace - stack = [] - pvget = functools.partial(get_profile_version, conn, cache=cache) - cvget = functools.partial(get_class_version, conn, - namespace=namespace, cache=cache) - pr = parser.bnf_parser(stack, pvget, cvget) - pr.parseString(expr, parseAll=True) - # Now evaluate starting non-terminal created on stack. - return stack[0]() - |