ADF : Get Current Logged User Name

Sometime we need getting current authenticated user name in ADF application.
To get user name we can do it using three ways

1- Using Groovy 

We can set default expression in view object attribute as below

adf.context.securityContext.getUserPrincipal().getName() 

or

adf.context.securityContext.getUserName() 

2- Java Code

You can get User Name in Java code also using the following code.

     ADFContext adfCtx = ADFContext.getCurrent();  
     SecurityContext secCntx = adfCtx.getSecurityContext();  
     String user = secCntx.getUserPrincipal().getName();  
     String _user = secCntx.getUserName();  

3-Expression Lnagugae

You can bind ADF Faces componenets with the following EL to get logged User Name.

 #{securityContext.userName}  

Thanks