raise NotImplementedError('Override in MetaDBOperations specific class')
def load(self, dbg, uri):
raise NotImplementedError('Override in MetaDBOperations specific class')
def dump(self, dbg, uri, db):
raise NotImplementedError('Override in MetaDBOperations specific class')
def lock(self, dbg, uri):
raise NotImplementedError('Override in MetaDBOperations specific class')
def unlock(self, dbg, uri):
raise NotImplementedError('Override in MetaDBOperations specific class')
plugin_specific_meta = module_exists("xapi.storage.libs.xcpng.lib%s.meta" % xapi.storage.libs.xcpng.globalvars.plugin_type)
if plugin_specific_meta:
_MetaDBOperations_ = getattr(plugin_specific_meta, 'MetaDBOperations')
else:
_MetaDBOperations_ = MetaDBOperations
class MetadataHandler(object):
def __new__(cls, *args, **kwargs):
if not hasattr(cls,'_inst'):
cls._inst = super(MetadataHandler, cls).__new__(cls, *args, **kwargs)
else:
def init_pass(self, *dt, **mp): pass
cls.__init__ = init_pass
REF_COUNT_TAG] = volume_meta[REF_COUNT_TAG] - 1
self.MetadataHandler.update_vdi_meta(dbg, uri, new_meta)
if chained:
if PARENT_URI_TAG in volume_meta:
self.unmap_vol(dbg, volume_meta[PARENT_URI_TAG][0],
chained)
except Exception as e:
log.error(
"%s: xcpng.datapath.DatapathOperations.unmap_vol: Failed to unmap volume: uri: %s"
% (dbg, uri))
raise Exception(e)
plugin_specific_datapath = module_exists(
"xapi.storage.libs.xcpng.lib%s.datapath" %
xapi.storage.libs.xcpng.globalvars.plugin_type)
if plugin_specific_datapath:
_DatapathOperations_ = getattr(plugin_specific_datapath,
'DatapathOperations')
else:
_DatapathOperations_ = DatapathOperations
class Datapath(object):
def __init__(self):
self.MetadataHandler = MetadataHandler()
self.DatapathOpsHandler = _DatapathOperations_()
def _relink(self, dbg, uri, child, parent, domain):
raise NotImplementedError('Override in Datapath specifc class')
image2_uuid = volume2_meta[IMAGE_UUID_TAG]
volume1_meta = {IMAGE_UUID_TAG: image2_uuid}
volume2_meta = {IMAGE_UUID_TAG: image1_uuid}
log.debug("%s: xcpng.volume.VolumeOperations.swap: after image_uuid1: %s image_uudi2: %s" %
(dbg, volume1_meta[IMAGE_UUID_TAG], volume2_meta[IMAGE_UUID_TAG]))
self.MetadataHandler.update_vdi_meta(dbg, uri1, volume1_meta)
self.MetadataHandler.update_vdi_meta(dbg, uri2, volume2_meta)
def get_phisical_utilization(self, dbg, uri):
raise NotImplementedError('Override in VolumeOperations specifc class')
def roundup_size(self, dbg, size):
raise NotImplementedError('Override in VolumeOperations specifc class')
plugin_specific_volume = module_exists("xapi.storage.libs.xcpng.lib%s.volume" % xapi.storage.libs.xcpng.globalvars.plugin_type)
if plugin_specific_volume:
_VolumeOperations_ = getattr(plugin_specific_volume, 'VolumeOperations')
else:
_VolumeOperations_ = VolumeOperations
class Volume(object):
def __init__(self):
self.MetadataHandler = MetadataHandler()
self.VolOpsHendler = _VolumeOperations_()
self.Datapathes = DATAPATHES
for k, v in DATAPATHES.iteritems():
self.Datapathes[k] = v()
class LocksOpsMgr(object):
def __init__(self):
self.__lhs = {}
def lock(self, dbg, uri, timeout=10):
raise NotImplementedError(
'Override in MetaDBOperations specific class')
def unlock(self, dbg, uri):
raise NotImplementedError(
'Override in MetaDBOperations specific class')
plugin_specific_metadb_ops = module_exists(
"xapi.storage.libs.xcpng.lib%s.meta" %
xapi.storage.libs.xcpng.globalvars.plugin_type)
if plugin_specific_metadb_ops:
_MetaDBOperations_ = getattr(plugin_specific_metadb_ops,
'MetaDBOperations')
else:
_MetaDBOperations_ = MetaDBOperations
#plugin_specific_metadb_cs = module_exists("xapi.storage.libs.xcpng.cluster_stack.%s.tinydb_storage"
# % xapi.storage.libs.xcpng.globalvars.cluster_stack)
plugin_specific_metadb_cs = module_exists(
"xapi.storage.libs.xcpng.cluster_stack.%s.tinydb_storage" % "consul")
if plugin_specific_metadb_cs:
_Storage_ = getattr(plugin_specific_metadb_cs, 'Storage')
_StorageProxy_ = getattr(plugin_specific_metadb_cs, 'StorageProxy')