UserDetailsByNameServiceWrapper.java

/*
 * GovWay - A customizable API Gateway 
 * https://govway.org
 * 
 * Copyright (c) 2005-2025 Link.it srl (https://link.it). 
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 3, as published by
 * the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
package org.openspcoop2.utils.service.authentication.provider;

import org.springframework.beans.factory.InitializingBean;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.userdetails.AuthenticationUserDetailsService;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.util.Assert;

/**
 * UserDetailsByNameServiceWrapper
 * 
 * Classe da utilizzare per wrappare il bean che accede al db utenti.
 * rispetto a quello di default di spring-security e' stato ridefinito il metodo 'loadUserDetails'
 * per passare al livello sottostante l'intero token di autenticazione invece del solo nome utente.
 * 
 * @author Giuliano Pintori (pintori@link.it)
 * @author $Author$
 * @version $Rev$, $Date$
 */
public class UserDetailsByNameServiceWrapper <T extends Authentication> implements AuthenticationUserDetailsService<T>, InitializingBean {
    
    private AuthenticationUserDetailsService<T> authenticationUserDetailsService = null;

    /**
     * Constructs an empty wrapper for compatibility with Spring Security 2.0.x's method
     * of using a setter.
     */
    public UserDetailsByNameServiceWrapper() {
        // constructor for backwards compatibility with 2.0
    }

    /**
     * Constructs a new wrapper using the supplied
     * {@link org.springframework.security.core.userdetails.UserDetailsService} as the
     * service to delegate to.
     *
     * @param authenticationUserDetailsService the UserDetailsService to delegate to.
     */
    public UserDetailsByNameServiceWrapper(final AuthenticationUserDetailsService<T> authenticationUserDetailsService) {
        Assert.notNull(authenticationUserDetailsService, "authenticationUserDetailsService cannot be null.");
        this.authenticationUserDetailsService = authenticationUserDetailsService;
    }

    /**
     * Check whether all required properties have been set.
     *
     * @see org.springframework.beans.factory.InitializingBean#afterPropertiesSet()
     */
    @Override
    public void afterPropertiesSet() throws Exception {
        Assert.notNull(this.authenticationUserDetailsService, "AuthenticationUserDetailsService must be set");
    }

    /**
     * Get the UserDetails object from the wrapped UserDetailsService implementation
     */
    @Override
    public UserDetails loadUserDetails(T authentication) throws UsernameNotFoundException {
        return this.authenticationUserDetailsService.loadUserDetails(authentication);
    }

    /**
     * Set the wrapped UserDetailsService implementation
     *
     * @param authenticationUserDetailsService The wrapped UserDetailsService to set
     */
    public void setAuthenticationUserDetailsService(AuthenticationUserDetailsService<T> authenticationUserDetailsService) {
        this.authenticationUserDetailsService = authenticationUserDetailsService;
    }

}