I have a requirement to provide audit trail information (who changed
what data, when and which records) whenever any data in my application
is added, updated or deleted. I have done this using code of the form:
public Callbacks<HistoricArtefacts> getCallbacks() {
return(new AbstractCallbacks<HistoricArtefacts>() {
public boolean afterUpdate(HistoricArtefacts bean, boolean
success) {
if (success) {
new
AuditTrailUpdater().recordUpdate("historicartefacts",
bean.getSite_survey_id(), "update");
}
return(true);
}
});
}
in each of the beans representing my different data types. I have
written a class (AuditTrailUpdater) which writes the data to the
appropriate audit trail table. I need to have user login name, table
name, record id, operation type (insert/update/delete) and date/time.
All of these are easy, apart from I am having trouble providing the
login name of the currently authenticated user (I am using database
authentication BTW). The way I am accustomed to doing this is from
within an Element context using:
identity =
(RoleUserIdentity)getRequestAttribute(Identified.IDENTITY_ATTRIBUTE_NAME);
However, none of this is available to me outside of the Element context
i.e. in my updating class. I can't make this latter class an Element as
I am instantiating it within a bean as above. How would I get hold of
the user name other than by the above? I can see that I could have the
class which does the bean save (a RIFE Element) could set an extra
"username" property in the bean, but this seems very clumsy. Is there a
better way?
Thanks for any insights,
David Herbert
British Antarctic Survey.
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