[kepler-dev] [Bug 3148] New: - Add authentication error reporting

[bugzilla-daemon at ecoinformatics.org]

http://bugzilla.ecoinformatics.org/show_bug.cgi?id=3148

           Summary: Add authentication error reporting
           Product: Kepler
           Version: 1.0.0beta3
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: data access
        AssignedTo: leinfelder at nceas.ucsb.edu
        ReportedBy: leinfelder at nceas.ucsb.edu
         QAContact: kepler-dev at ecoinformatics.org


When using the AuthenticationManager with the ecogrid services there is
currently no feedback given to the user when errors occur (bad password, wrong
username, service unavailable...etc).
Should use the MessageHandler's alert mechanism so that it can function without
a GUI.

Note that when using the AuthenticatedQueryService, there is no requirement
that the authentication credential be _valid_.  Therefore an error that occurs
during authentication should not prevent the authenticated query from
continuing (equivalent to performing a public query).

Also:  we may want to consider adjusting the login prompt behavior so that the
prompt will reappear after an unsuccessful login attempt.  Only after
successfully authenticating (or canceling the action) would the prompt not
reappear.  Currently you are only given one chance to login - there is no
re-prompting.