def _build_value(self, entries, deep=False):
"""
Constructs a DataObject from list of tree entries
@param entries list of TreeEntry instances with values
@param deep boolean flag, indicates whether subtree value should be
loaded or kept as ValueRef
@retval a DataObject
"""
if not entries:
return
dobj = DataObject()
for entry in entries:
valname = entry.entry['name']
value = entry.value
if isinstance(value, TreeValue):
if deep:
tentries = yield self.vs.get_tree_entriesvalues(value)
# @todo Should this maybe a container DataObject?
vdo = self._build_value(tentries, deep)
if vdo:
dobj.set_attr(valname, vdo)
else:
# Put only a the tree value object in
# @todo Check if this is OK in a DataObject
dobj.set_attr(valname, value)
elif isinstance(value, ValueObject):
if type(value.value) is dict:
# case where a DataObject was encoded
vdo = DataObject.from_encoding(value.value)
vdo.identity = value.identity
else:
# case where value is a simple value
vdo = DataObject()
vdo.identity = value.identity
vdo.set_attr('value', value.value)
if len(entries) == 1:
defer.returnValue(vdo)
return
dobj.set_attr(valname, vdo)
else:
raise RuntimeError('Unknown value type in store: '+repr(value))
defer.returnValue(dobj)
