package org.jboss.seam.web;
import static org.jboss.seam.annotations.Install.BUILT_IN;
import java.security.Principal;
import javax.servlet.ServletRequest;
import javax.servlet.http.HttpServletRequest;
import org.jboss.seam.Component;
import org.jboss.seam.ScopeType;
import org.jboss.seam.annotations.Install;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.Scope;
import org.jboss.seam.annotations.Unwrap;
import org.jboss.seam.annotations.intercept.BypassInterceptors;
import org.jboss.seam.contexts.Contexts;
/**
* Manager component for the current user Principal
* exposed via the JSF ExternalContext.
*
* @author Gavin King
*/
@Scope(ScopeType.APPLICATION)
@BypassInterceptors
@Name("org.jboss.seam.web.userPrincipal")
@Install(precedence=BUILT_IN)
public class UserPrincipal
{
@Unwrap
public Principal getUserPrincipal()
{
ServletRequest servletRequest = ServletContexts.instance().getRequest();
if ( servletRequest != null )
{
return ( (HttpServletRequest) servletRequest ).getUserPrincipal();
}
return null;
}
public static Principal instance()
{
if ( !Contexts.isApplicationContextActive() )
{
throw new IllegalStateException("No active application scope");
}
return (Principal) Component.getInstance(UserPrincipal.class, ScopeType.APPLICATION);
}
}