The TokenIssueOperation
The TokenIssueOperation is an extension of AbstractOperation that is used to issue tokens. It implements the IssueOperation and IssueSingleOperation interfaces in the STS provider framework.
Recall that AbstractOperation uses the RequestParser to parse a client request into TokenRequirements and KeyRequirements objects. TokenIssueOperation populates a TokenProviderParameters object with values extracted from the TokenRequirements and KeyRequirements objects. A number of different processing steps then occur before a TokenProvider implementation is used to retrieve the desired token, comprising of realm parsing, claims handling, and AppliesTo parsing.