class UnsharedDevice(resources.LogicalDrive):
class Meta:
identifier = ScopedId("path")
# Annoying duplication of this from the node, but it really
# is the closest thing we have to a real ID.
path = attributes.PosixPath()
def get_label(self):
hide_prefixes = ["/dev/disk/by-path/", "/dev/disk/by-id/"]
path = self.path
for prefix in hide_prefixes:
if path.startswith(prefix):
path = path[len(prefix):]
break
return path
class DeviceNode(BaseStorageResource):
host_id = attributes.Integer()
path = attributes.PosixPath()
logical_drive = attributes.ResourceReference(optional=True)
class Meta:
label = "Device node"
def get_label(self):
path = self.path
strip_strings = [
"/dev/", "/dev/mapper/", "/dev/disk/by-id/", "/dev/disk/by-path/"
]
strip_strings.sort(lambda a, b: cmp(len(b), len(a)))
for s in strip_strings:
if path.startswith(s):
path = path[len(s):]
return "%s:%s" % (self.host_id, path)
