LdapSpringClient.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.transport.ldap;

import java.net.URI;
import java.util.List;

import javax.naming.directory.Attributes;
import javax.naming.ldap.LdapName;

import org.springframework.ldap.core.LdapTemplate;
import org.springframework.ldap.core.support.LdapContextSource;
import org.springframework.ldap.query.LdapQueryBuilder;

/**
 * Implementazione spring di un client ldap
 * 
 * @author Tommaso Burlon (tommaso.burlon@link.it)
 * @author $Author$  
 * @version $Rev$, $Date$
 *
 */
public class LdapSpringClient implements LdapClientInterface{

    private LdapContextSource context;
    private LdapTemplate template;
    
    public LdapSpringClient() {
        this.context = new LdapContextSource();
        this.template = new LdapTemplate();
        
        this.template.setContextSource(null);
    }
    
    private LdapTemplate getTemplate() {
        if (this.template.getContextSource() == null) {
            this.context.afterPropertiesSet();
            this.template.setContextSource(this.context);
        }
        return this.template;
    }
    
    @Override
    public List<Attributes> search(LdapQuery query) {
        LdapTemplate ldapTemplate = this.getTemplate();
        LdapQueryBuilder queryBuilder = LdapQueryBuilder
                .query();
        
        if (query.getLimit() != null)
            queryBuilder.countLimit(query.getLimit());
        
        if (!query.getAttributes().isEmpty())
            queryBuilder.attributes(query.getAttributes().toArray(new String[0]));
        
        if (query.getBase() != null)
            queryBuilder.base(query.getBase());
        
        return ldapTemplate.search(
                queryBuilder.filter(query.getFilter().toString()), 
                (Attributes attrs) -> attrs);
    }

    @Override
    public LdapClientInterface base(LdapName base) {
        this.context.setBase(base.toString());
        return this;
    }

    @Override
    public LdapClientInterface uri(URI uri) {
        this.context.setUrl(uri.toString());
        return this;
    }
    
    @Override
    public LdapClientInterface username(LdapName username) {
        this.context.setUserDn(username.toString());
        return this;
    }
    
    @Override
    public LdapClientInterface password(String password) {
        this.context.setPassword(password);
        return this;
    }

}