def __new__(cls, *args, **kwds):
"""
Decides by type of given clustermetainfo which
instance of clusterrepository (general, redhat
or comoonics) has to be created.
args = (element,doc,options)
"""
if len(args) >= 1 and isinstance(args[0], basestring):
doc=comoonics.XmlTools.parseXMLFile(args[0])
if len(comoonics.XmlTools.evaluateXPath(ComoonicsClusterRepository.getDefaultComoonicsXPath(), doc.documentElement)) > 0:
cls = ComoonicsClusterRepository
elif len(comoonics.XmlTools.evaluateXPath(RedHatClusterRepository.getDefaultClusterNodeXPath(), doc.documentElement)) > 0:
cls = RedHatClusterRepository
if len(args) >= 2:
if (args[0] != None):
if comoonics.XmlTools.evaluateXPath(ComoonicsClusterRepository.getDefaultComoonicsXPath(""), args[0]) or len(args[2]) == 0:
cls = ComoonicsClusterRepository
elif comoonics.XmlTools.evaluateXPath(RedHatClusterRepository.getDefaultClusterNodeXPath(), args[0]):
cls = RedHatClusterRepository
elif type(args[2]) == dict:
if searchDict(args[2],"osr"):
cls = ComoonicsClusterRepository
elif searchDict(args[2],RedHatClusterRepository.element_clusternode):
cls = RedHatClusterRepository
return object.__new__(cls) #, *args, **kwds)
def __new__(cls, *args, **kwds):
"""
Decides by type of given clustermetainfo which
instance of clusterrepository (general, redhat
or comoonics) has to be created.
args = (element,doc,options)
"""
if len(args) >= 1 and isinstance(args[0], basestring):
doc = comoonics.XmlTools.parseXMLFile(args[0])
if len(
comoonics.XmlTools.evaluateXPath(
ComoonicsClusterRepository.getDefaultComoonicsXPath(),
doc.documentElement)) > 0:
cls = ComoonicsClusterRepository
elif len(
comoonics.XmlTools.evaluateXPath(
RedHatClusterRepository.getDefaultClusterNodeXPath(),
doc.documentElement)) > 0:
cls = RedHatClusterRepository
if len(args) >= 2:
if (args[0] != None):
if comoonics.XmlTools.evaluateXPath(
ComoonicsClusterRepository.getDefaultComoonicsXPath(
""), args[0]) or len(args[2]) == 0:
cls = ComoonicsClusterRepository
elif comoonics.XmlTools.evaluateXPath(
RedHatClusterRepository.getDefaultClusterNodeXPath(),
args[0]):
cls = RedHatClusterRepository
elif type(args[2]) == dict:
if searchDict(args[2], "osr"):
cls = ComoonicsClusterRepository
elif searchDict(args[2],
RedHatClusterRepository.element_clusternode):
cls = RedHatClusterRepository
return object.__new__(cls) #, *args, **kwds)
def getClusterRepository(*args, **kwds):
"""
Factory method to autocreate a fitting cluster repository.
The following call semantics are supported:
getClusterRepository() => SimpleComoonicsClusterRepository
getClusterRepository(filename) => ComoonicsClusterRepository
getClusterRepository(docelement, doc, options) => ComoonicsClusterRepository
getClusterRepository(filename=filename) => ComoonicsClusterRepository
getClusterRepository(clusterconf=filename) => ComoonicsClusterRepository
getClusterRepository(maxnodeid=maxnodeid) => SimpleClusterRepository
Parses the given filename as configuration to the given cluster or already accept a parsed configuration.
Right now only xml.dom.Node representation of the cluster configuration is supported.
@param filename: representation of the path to the cluster configuration. If it is a xml file it will be parsed.
If not an exception is thrown.
@type filename: L{String}
@param docelement: the already parse configuration as dom document.
@type docelement: L{xml.dom.Element}
@param doc: the document itself.
@type doc: L{xml.dom.Docuement}
@param options: options see ClusterRepository constructor.
@type options: L{dict}
@return: The best fitting clusterconfiguration repository class instance
@rtype: L{ComoonicsClusterRepository}, L{RedHatClusterRepository}, ..
"""
from comoonics.XmlTools import evaluateXPath
from comoonics.DictTools import searchDict
import ComClusterRepository
# from comoonics.cluster.ComClusterRepository import SimpleComoonicsClusterRepository, ComoonicsClusterRepository, RedHatClusterRepository
repositoryclass=ComClusterRepository.SimpleComoonicsClusterRepository
clusterconf=None
if (args and len(args) >= 1 and isinstance(args[0], basestring)) or (kwds and (kwds.has_key("clusterconf") or kwds.has_key("filename"))):
if args and len(args) >= 1 and isinstance(args[0], basestring):
clusterconf=args[0]
elif kwds.has_key("clusterconf"):
clusterconf=kwds.get("clusterconf")
del kwds["clusterconf"]
elif kwds.has_key("filename"):
clusterconf=kwds.get("filename")
del kwds["filename"]
if clusterconf and os.path.isfile(clusterconf):
doc=parseClusterConf(clusterconf)
newargs=[doc.documentElement,doc]
newargs.extend(args[1:])
args=newargs
if len(evaluateXPath(ComClusterRepository.ComoonicsClusterRepository.getDefaultComoonicsXPath(), doc.documentElement)) > 0:
repositoryclass = ComClusterRepository.ComoonicsClusterRepository
elif len(evaluateXPath(ComClusterRepository.RedHatClusterRepository.getDefaultClusterNodeXPath(), doc.documentElement)) > 0:
repositoryclass = ComClusterRepository.RedHatClusterRepository
elif len(args) >= 2 or kwds.has_key("element"):
if args and args[0]:
element=args[0]
else:
element=kwds.get("element", None)
if (element != None):
if args and len(args)>=3:
options=args[2]
else:
options=kwds.get("options", {})
if evaluateXPath(ComClusterRepository.ComoonicsClusterRepository.getDefaultComoonicsXPath(""), element) or not options:
repositoryclass = ComClusterRepository.ComoonicsClusterRepository
elif evaluateXPath(ComClusterRepository.RedHatClusterRepository.getDefaultClusterNodeXPath(), element):
repositoryclass = ComClusterRepository.RedHatClusterRepository
elif type(args[2]) == dict:
if searchDict(args[2],"osr"):
repositoryclass = ComClusterRepository.ComoonicsClusterRepository
elif searchDict(args[2],ComClusterRepository.RedHatClusterRepository.element_clusternode):
repositoryclass = ComClusterRepository.RedHatClusterRepository
return repositoryclass(*args, **kwds) #, *args, **kwds)
