def fromXML(cls, elem):
if not ElementTree.iselement(elem):
raise TypeError("Expecting %r input type for parsing; got %r" %
(ElementTree.Element, elem))
if QName.getLocalPart(elem.tag) != cls.DEFAULT_ELEMENT_LOCAL_NAME:
raise XMLTypeParseError("No \"%s\" element found" %
cls.DEFAULT_ELEMENT_LOCAL_NAME)
authzDecisionStatement = XACMLAuthzDecisionStatement()
for childElem in elem:
localName = QName.getLocalPart(childElem.tag)
if localName == Response.ELEMENT_LOCAL_NAME:
# Create XACML context request from Response element.
authzDecisionStatement.xacmlContextResponse = \
ResponseElementTree.fromXML(childElem)
elif localName == Request.ELEMENT_LOCAL_NAME:
# Create XACML context request from Request element.
authzDecisionStatement.xacmlContextRequest = \
RequestElementTree.fromXML(childElem)
else:
raise XMLTypeParseError("Unrecognised XACMLAuthzDecisionQuery child "
"element \"%s\"" % localName)
return authzDecisionStatement
def toXML(cls, xacmlAuthzDecisionStatement):
if not isinstance(xacmlAuthzDecisionStatement,
XACMLAuthzDecisionStatement):
raise TypeError("Expecting %r class got %r" %
(XACMLAuthzDecisionStatement,
type(xacmlAuthzDecisionStatement)))
if not xacmlAuthzDecisionStatement.xacmlContextResponse:
raise AttributeError("No xacmlContextResponse has been set for the "
"XACMLAuthzDecisionStatement")
tag = str(QName.fromGeneric(cls.DEFAULT_ELEMENT_NAME))
elem = etree.makeEtreeElement(tag, cls.DEFAULT_ELEMENT_NAME.prefix,
cls.DEFAULT_ELEMENT_NAME.namespaceURI)
xacmlContextResponseElem = ResponseElementTree.toXML(
xacmlAuthzDecisionStatement.xacmlContextResponse)
elem.append(xacmlContextResponseElem)
if xacmlAuthzDecisionStatement.xacmlContextRequest:
xacmlContextRequestElem = RequestElementTree.toXML(
xacmlAuthzDecisionStatement.xacmlContextRequest)
elem.append(xacmlContextRequestElem)
return elem