package org.oxerr.spring.security.guest.authentication;
   
   import org.springframework.security.authentication.AbstractAuthenticationToken;
   import org.springframework.security.core.userdetails.UserDetails;
   
   public class GuestAuthenticationToken extends AbstractAuthenticationToken {
   
   	private static final long serialVersionUID = 2017073001L;
   
  	private Object principal;
  
  	public GuestAuthenticationToken(String clientToken) {
  		super(null);
  		this.principal = clientToken;
  		setAuthenticated(false);
  	}
  
  	public GuestAuthenticationToken(UserDetails userDetails) {
  		super(userDetails.getAuthorities());
  		this.principal = userDetails;
  		setAuthenticated(true);
  	}
  
  	/**
  	 * Always returns an empty <code>String</code>
  	 *
  	 * @return an empty String
  	 */
  	@Override
  	public Object getCredentials() {
  		return "";
  	}
  
  	@Override
  	public Object getPrincipal() {
  		return this.principal;
  	}
  
  }