HashServiceImpl.java

/*
 *   This file is part of SGEA - Sistema de Gestão de Eventos Acadêmicos - TADS IFNMG Campus Januária.
 *
 *   SGEA is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version.
 *
 *   SGEA 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 SGEA.  If not, see <http://www.gnu.org/licenses/>.
 */
package br.edu.ifnmg.GerenciamentoEventos.Infraestrutura;

import br.edu.ifnmg.DomainModel.Services.HashService;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.ejb.Stateless;

/**
 *
 * @author petronio
 */
@Stateless
public class HashServiceImpl implements HashService {

    @Override
    public String getMD5(String msg) {
        try {
            MessageDigest md = MessageDigest.getInstance("MD5");
            md.update(msg.getBytes());
            byte[] digest = md.digest();
            StringBuilder sb = new StringBuilder();
            for (byte b : digest) {
                sb.append(String.format("%02x", b & 0xff));
            }
            return sb.toString();
        } catch (NoSuchAlgorithmException ex) {
            Logger.getLogger(HashServiceImpl.class.getName()).log(Level.SEVERE, null, ex);
        }

        return null;
    }

}