es.emergya.comunications.MessageGenerator.java Source code

Introduction

Here is the source code for es.emergya.comunications.MessageGenerator.java

Source

/*
 * Copyright (C) 2010, Emergya (http://www.emergya.es)
 *
 * @author <a href="mailto:jlrodriguez@emergya.es">Juan Lus Rodrguez</a>
 * @author <a href="mailto:marias@emergya.es">Mara Arias</a>
 *
 * This file is part of GoFleet
 *
 * This software 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 2 of the License, or
 * (at your option) any later version.
 *
 * This software 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 library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * As a special exception, if you link this library with other files to
 * produce an executable, this library does not by itself cause the
 * resulting executable to be covered by the GNU General Public License.
 * This exception does not however invalidate any other reasons why the
 * executable file might be covered by the GNU General Public License.
 */
/**
 * 
 */
package es.emergya.comunications;

import java.util.Calendar;

import org.apache.commons.lang.StringUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.appfuse.dao.GenericDao;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;

import es.emergya.bbdd.bean.Outbox;
import es.emergya.comunications.exceptions.MessageGeneratingException;
import es.emergya.consultas.TipoMensajeConsultas;
import es.emergya.utils.LogicConstants;
import es.emergya.utils.MyBeanFactory;

/**
 * @author marias
 * 
 */
@SuppressWarnings("unchecked")
public class MessageGenerator {

    private static Log log = LogFactory.getLog(MessageGenerator.class);
    private static GenericDao<Outbox, Long> bandejaSalidaDAO;

    @Autowired
    public static void setBandejaSalidaDAO(GenericDao<Outbox, Long> bandejaSalidaDAO) {
        MessageGenerator.bandejaSalidaDAO = bandejaSalidaDAO;
    }

    static {
        bandejaSalidaDAO = (GenericDao<Outbox, Long>) MyBeanFactory.getBean("bandejaSalidaDAO");
    }

    /**
     * 
     * @param tipo
     * @param prioridad
     * @param cuerpo
     * @param destino
     * @return
     */
    @Transactional(readOnly = false, rollbackFor = Throwable.class, propagation = Propagation.REQUIRES_NEW)
    public static Outbox sendMessage(Integer codigo, Integer tipo, Integer prioridad, String cuerpo, String destino)
            throws MessageGeneratingException {

        if (destino == null) {
            throw new MessageGeneratingException("Destino nulo.");
        }
        if (codigo == null) {
            throw new MessageGeneratingException("Mensaje sin codigo.");
        }
        if (tipo == null) {
            throw new MessageGeneratingException("Mensaje sin tipo.");
        }
        if (prioridad == null) {
            throw new MessageGeneratingException("Prioridad nula");
        }
        if (cuerpo == null) {
            cuerpo = "";
        }

        log.info("sendMessage(" + codigo + "," + tipo + "," + prioridad + "," + cuerpo + "," + destino + ")");

        try {
            Integer tipo_tetra = TipoMensajeConsultas.getTipoByCode(codigo).getTipoTetra();

            // Limpiamos las comillas:
            cuerpo = StringUtils.remove(cuerpo, "'");

            String datagramaTetra = getDatagrama(codigo, tipo, cuerpo);

            Outbox out = new Outbox();
            out.setMarcaTemporal(Calendar.getInstance().getTime());
            out.setDatagramaTetra(datagramaTetra);
            out.setPrioridad(prioridad);
            out.setDestino(StringUtils.leftPad(destino, LogicConstants.getInt("LONGITUD_ISSI", 8), '0'));
            out.setTipo(tipo_tetra);

            log.info("Enviamos el mensaje " + datagramaTetra + " a " + destino + " con prioridad " + prioridad);

            out = bandejaSalidaDAO.save(out);
            log.info("Enviando " + out);
            return out;
        } catch (Exception e) {
            throw new MessageGeneratingException("Error al generar mensaje", e);
        }
    }

    /**
     * Devuelve el cuerpo del mensaje tetra.
     * 
     * @param codigo
     * @param tipo
     * @param cuerpo
     * @return
     */
    protected static String getDatagrama(Integer codigo, Integer tipo, String cuerpo) {
        String datagramaTetra = null;

        if (log.isTraceEnabled()) {
            log.trace("Tipos de mensaje sin tipo:");
            for (Integer i : LogicConstants.MENSAJES_SIN_TIPO) {
                log.trace(">Tipo: " + i);
            }
            log.trace("Nosotros tenemos un tipo " + tipo);
        }

        for (Integer i : LogicConstants.MENSAJES_SIN_TIPO) {
            if (tipo.equals(i)) {
                log.info("mensaje sin codigo ni tipo");
                datagramaTetra = cuerpo;
            }
        }
        if (datagramaTetra == null) {
            log.error("mensaje con codigo y tipo " + tipo);
            datagramaTetra = codigo + LogicConstants.FIELD_SEPARATOR + cuerpo + LogicConstants.FIELD_SEPARATOR;
        }
        return datagramaTetra;
    }

    /**
     * @param id
     *            Id del mensaje que se debe comprobar si existe o no
     * @return Si el mensaje con id de bandeja de salida <code>id</code> aun
     *         existe en la base de datos.
     */
    @Transactional(readOnly = true, rollbackFor = Throwable.class, propagation = Propagation.REQUIRES_NEW)
    public static boolean messageExists(Long id) {
        return bandejaSalidaDAO.exists(id);
    }

    /**
     * @param id
     *            Id del mensaje que se debe comprobar si existe o no
     * @return Si el mensaje con id de bandeja de salida <code>id</code> aun
     *         existe en la base de datos.
     */
    @Transactional(readOnly = false, rollbackFor = Throwable.class, propagation = Propagation.REQUIRES_NEW)
    public static void remove(Long id) {
        try {
            log.info("Cancelando el envo de " + id);
            bandejaSalidaDAO.remove(id);
        } catch (Throwable t) {
            log.error(t, t);
        }
    }
}