RestAuthenticationEntryPoint.java

package no.niths.security;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.AuthenticationEntryPoint;

/**
 * Sets the entry point for exceptions in the Authentication process
 *
 */
public class RestAuthenticationEntryPoint implements AuthenticationEntryPoint {

    private static final Logger logger = LoggerFactory
            .getLogger(RestAuthenticationEntryPoint.class);

    @Override
    public void commence(HttpServletRequest request,
            HttpServletResponse response, AuthenticationException authException)
            throws IOException, ServletException {
        
        logger.debug("Authentication failed, entry point is set");
        response.addHeader("Error", authException.getMessage());
    
    }

}