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# http://askawizard.blogspot.com/2008/10/ordered-properties-python-saga-part-5.html
from irods.message.ordered import OrderedMetaclass, OrderedClass
class MessageMetaclass(OrderedMetaclass):
def __init__(self, name, bases, attys):
super(MessageMetaclass, self).__init__(name, bases, attys)
for name, prop in self._ordered_properties:
prop.dub(name)
class Message(OrderedClass, metaclass=MessageMetaclass):
def __init__(self, *args, **kwargs):
super(Message, self).__init__()
self._values = {}
for name, _ in self._ordered_properties:
if name in kwargs:
self._values[name] = kwargs[name]
def pack(self):
values = []
values.append("<%s>" % self.__class__._name)
for name, prop in self._ordered_properties:
if name in self._values:
values.append(prop.pack(self._values[name]))
values.append("</%s>" % self.__class__._name)
return "".join(values)
def unpack(self, root):
for name, prop in self._ordered_properties:
self._values[name] = prop.unpack(root.findall(name))
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