Request Parsing

The first thing any of the AbstractOperation implementations do on receiving a request is to call some functionality in AbstractOperation to parse the request. This parsing is done by the RequestParser object, which iterates through the objects of the JAXB RequestSecurityTokenType. The request is parsed into two components, TokenRequirements and KeyRequirements, which are available on the RequestParser object and are subsequently passed to the desired TokenProvider/TokenValidator/etc objects.