com.qpark.eip.core.spring.security.EipUserDetailsService.java Source code

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Here is the source code for com.qpark.eip.core.spring.security.EipUserDetailsService.java

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/*******************************************************************************
 * Copyright (c) 2013, 2014, 2015 QPark Consulting  S.a r.l.
 * 
 * This program and the accompanying materials are made available under the 
 * terms of the Eclipse Public License v1.0. 
 * The Eclipse Public License is available at 
 * http://www.eclipse.org/legal/epl-v10.html.
 ******************************************************************************/
package com.qpark.eip.core.spring.security;

import org.springframework.dao.DataAccessException;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.core.userdetails.User;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;

/**
 * Provides user details from the {@link EipUserProvider} to the
 * {@link UserDetailsService} of spring.
 * 
 * @author bhausen
 */
public class EipUserDetailsService extends EipRoleVoter implements UserDetailsService {
    /** The name of the anonymous role. */
    public static final String ROLE_ANONYMOUS = "ROLE_ANONYMOUS";

    /**    */
    public static void clearSecurityContextHolderAuthentication() {
        SecurityContextHolder.clearContext();
    }

    /**
     * @param userDetailService
     * @param userName
     * @return
     */
    public static boolean setSecurityContextHolderAuthentication(final EipUserProvider userDetailService,
            final String userName) {
        boolean doLogin = SecurityContextHolder.getContext().getAuthentication() == null;
        if (doLogin) {
            User user = userDetailService.getUser(userName);
            SecurityContextHolder.getContext()
                    .setAuthentication(new UsernamePasswordAuthenticationToken(user, user.getPassword()));
        }
        return doLogin;
    }

    /** The {@link Logger}. */
    private final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(EipUserDetailsService.class);
    /** The {@link EipUserProvider}. */
    private EipUserProvider userProvider;

    /**
     * @see org.springframework.security.core.userdetails.UserDetailsService#loadUserByUsername(java.lang.String)
     */
    @Override
    public UserDetails loadUserByUsername(final String username)
            throws UsernameNotFoundException, DataAccessException {
        this.logger.debug("+loadUserByUsername user {}", username);
        User user = this.userProvider.getUser(username);
        if (user == null) {
            throw new UsernameNotFoundException("Application user '" + username + "' is not known");
        }
        this.logger.debug("-loadUserByUsername user {} found!", user.getUsername());
        return user;
    }

    /**
     * @param userDetailService
     *            the userDetailService to set
     */
    public void setUserProvider(final EipUserProvider userDetailService) {
        this.userProvider = userDetailService;
    }
}