br.com.progolden.dneutils.utils.DNEHibernateSessionFactory Maven / Gradle / Ivy

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Biblioteca de utilitários para trabalhar com a base e-DNE dos Correios.

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/*
   Copyright 2014 ProGolden Soluções Tecnológicas

   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 conexão 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 conexão com a DNE pelo arquivo: "
					+configFile,ex);
				LOG.info("Inicializando a DNE sem conexão com o banco de dados devido à 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 não configurado devido à erros.");
		}
	}
	
	public SessionFactory getFactory() {
		return this.customFactory;
	}
	
	@PreDestroy
	public void closeFactory() {
		if (this.customFactory != null) {
			this.customFactory.close();
			this.customFactory = null;
		}
	}

}