MongoConnectionManager.java

package util;

import com.google.code.morphia.Datastore;
import com.google.code.morphia.Morphia;
import com.mongodb.Mongo;
import model.Cliente;
import model.Comentario;
import model.Pedido;
import model.Producto;
import model.Usuario;

public class MongoConnectionManager {

    private static final MongoConnectionManager INSTANCE = new MongoConnectionManager();
    private final Datastore db;
    public static final String DB_NAME = "telecafeDB";

    private MongoConnectionManager() {
        try {
            Mongo m = new Mongo("localhost", 27017);
            db = new Morphia().map(Cliente.class).map(Usuario.class).map(Pedido.class).map(Producto.class).createDatastore(
                    m, DB_NAME);
            db.ensureIndexes();
        } catch (Exception e) {
            throw new RuntimeException("Error inicializando Mongo db", e);
        }
    }

    public static MongoConnectionManager instance() {
        return INSTANCE;
    }

    public Datastore getDb() {
        return db;
    }
}