Package ndg :: Package xacml :: Package parsers :: Package etree :: Module expressionreader :: Class ExpressionReader
[hide private]

Class ExpressionReader

source code

            object --+        
                     |        
        AbstractReader --+    
                         |    
reader.ETreeAbstractReader --+
                             |
                            ExpressionReader
Known Subclasses:

ElementTree based XACML Expression type parser

Nested Classes [hide private]
NoneType TYPE
XACML type to instantiate from parsed object

Inherited from AbstractReader: __metaclass__

Instance Methods [hide private]
ndg.xacml.core.expression.Expression derived type
__call__(self, obj, common)
Parse Expression object
source code
 
_parseExtension(self, elem, expression)
Derived classes should implement this method to read any remaining attributes and elements specific to their type
source code

Inherited from reader.ETreeAbstractReader: __del__, __init__

Inherited from object: __delattr__, __format__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __repr__, __setattr__, __sizeof__, __str__

Class Methods [hide private]

Inherited from AbstractReader: __subclasshook__, parse

Static Methods [hide private]

Inherited from reader.ETreeAbstractReader (private): _parse

Class Variables [hide private]
  __abstractmethods__ = frozenset(['_parseExtension'])
  _abc_cache = <_weakrefset.WeakSet object at 0x101ca65d0>
Properties [hide private]

Inherited from object: __class__

Method Details [hide private]

__call__(self, obj, common)
(Call operator)

source code 

Parse Expression object

Parameters:
  • obj (ElementTree Element, or stream object) - input object to parse
Returns: ndg.xacml.core.expression.Expression derived type
new XACML expression instance
Raises:
Overrides: AbstractReader.__call__

_parseExtension(self, elem, expression)

source code 

Derived classes should implement this method to read any remaining attributes and elements specific to their type

Parameters:
  • elem (xml.etree.Element) - ElementTree XML element
  • expression (ndg.xacml.core.attributevalue.AttributeValue) - attribute selector to be updated with parsed values
Decorators:
  • @abstractmethod
Raises:
  • NotImplementedError - Derived classes should implement