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[aspectj-users] RE: PerClauses( or single-signon-authorization)
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Dear all, sorry for replying to myself but my last effort was far too ugly.
What, gentle readers, is wrong with the following?
---------------------------------------------------------------------
import javax.security.auth.Subject;
public abstract aspect AuthAspect pertarget(target(Subject)){
public abstract pointcut authOperations();
around():authOperations() && !cflowbelow(authOperations()){
Subject s = (Subject)thisJoinPoint.getTarget();
if(s == null) throw new AuthorizationException("No subject
associated");
try{
Subject.doAsPrivileged(s, new PrivilegedExceptionAction(){
public Object run() throws Exception{
AccessController.checkPermission(getPermission(thisJoinPoint));
return proceed();
}}, null);
}catch(PrivilegedActionException e){
throw new AuthorizationException(e.getException());
}
}
protected abstract Permission getPermission(JoinPoint point);
}
-----------------------------------------------------------------
craig collings
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