/// <summary>
    /// Allows us to load mapping assembly information from a config file.
    /// </summary>
    public class MappingAssemblyConfigHandler : IConfigurationSectionHandler
    {
        #region IConfigurationSectionHandler Members

        /// <summary>
        /// Reads the config file to create a MappingAssemblies object
        /// </summary>
        /// <param name="parent"></param>
        /// <param name="configContext"></param>
        /// <param name="section"></param>
        /// <returns></returns>
        public object Create(object parent, object configContext, XmlNode section)
        {
            MappingAssemblies assemblies = new MappingAssemblies();

            foreach (XmlNode node in section.SelectNodes("assembly"))
                assemblies.Names.Add(node.SelectSingleNode("@name").Value);

            return assemblies;
        }

        #endregion
    }

    /// <summary>
    /// An collection of assemblies that contains persistence mapping information
    /// </summary>
    public class MappingAssemblies
    {
        private static IList names;

        public MappingAssemblies()
        {
            names = new ArrayList();
        }

        /// <summary>
        /// The names of the assemblies
        /// </summary>
        public IList Names
        {
            get { return names; }
        }
    }

        /// <summary>
        /// Creates the configuration from the config parameters
        /// </summary>
        /// <returns></returns>
        private Configuration InitializeConfiguration()
        {
            Configuration cfg = new Configuration();

            // The following makes sure the the web.config contains a declaration for the persistenceMappingAssemblies config section
            MappingAssemblies assemblies =
                (MappingAssemblies) ConfigurationManager.GetSection("persistenceMappingAssemblies");
            if (assemblies == null)
                throw new ConfigurationErrorsException(
                    "NHibernateSessionManager.InitializeConfiguration: \"persistenceMappingAssemblies\" must be " +
                    "provided as a section within your config file. \"persistenceMappingAssemblies\" informs NHibernate which assembly(s) " +
                    "contains the HBM files. It is assumed that the HBM files are embedded resources. An example config " +
                    "declaration is <persistenceMappingAssemblies><assembly name=\"MyProject.Core\" /></persistenceMappingAssemblies>");

            try
            {
                foreach (string name in assemblies.Names)
                    cfg.AddAssembly(name);

                return cfg;
            }
            catch (Exception ex)
            {
                log.Error(ex);
                throw;
            }
        }