br.com.progolden.dneutils.utils.DNEHibernateSessionFactory.java Source code

Introduction

Here is the source code for br.com.progolden.dneutils.utils.DNEHibernateSessionFactory.java

Source

/*
   Copyright 2014 ProGolden Solues Tecnolgicas
    
   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at
    
   http://www.apache.org/licenses/LICENSE-2.0
    
   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
 */
package br.com.progolden.dneutils.utils;

import javax.annotation.PreDestroy;

import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import org.hibernate.service.ServiceRegistryBuilder;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class DNEHibernateSessionFactory {

    private static final Logger LOG = LoggerFactory.getLogger(DNEHibernateSessionFactory.class);

    private SessionFactory customFactory;

    public DNEHibernateSessionFactory(String configFile) {
        if ((configFile == null) || (configFile.equals(""))) {
            LOG.info("Inicializando a DNE sem conexo com o banco de dados.");
            this.customFactory = null;
        } else {
            try {
                LOG.debug("Carregando DNE no Hibernate pelo arquivo: " + configFile);
                Configuration config = new Configuration();
                config.configure("dne.hibernate.mappings.xml").configure(configFile);
                ServiceRegistryBuilder serviceRegistryBuilder = new ServiceRegistryBuilder()
                        .applySettings(config.getProperties());
                this.customFactory = config.buildSessionFactory(serviceRegistryBuilder.buildServiceRegistry());
            } catch (Exception ex) {
                LOG.error("Um erro ocorreu ao tentar estabelecer a conexo com a DNE pelo arquivo: " + configFile,
                        ex);
                LOG.info("Inicializando a DNE sem conexo com o banco de dados devido  erros.");
                this.customFactory = null;
            }
        }
    }

    public static void configure(Configuration config) {
        try {
            LOG.debug("Configurando a DNE no Hibernate pelo arquivo: dne.hibernate.mappings.xml");
            config.configure("dne.hibernate.mappings.xml");
        } catch (Throwable ex) {
            LOG.error("Erro ao tentar configurar o BD da DNE.", ex);
            LOG.info("Banco de dados da DNE no configurado devido  erros.");
        }
    }

    public SessionFactory getFactory() {
        return this.customFactory;
    }

    @PreDestroy
    public void closeFactory() {
        if (this.customFactory != null) {
            this.customFactory.close();
            this.customFactory = null;
        }
    }

}