/// <summary>
		/// Initialize the document store access method to RavenDB
		/// </summary>
		protected override void InitializeInternal()
		{
			if (string.IsNullOrEmpty(Url) == false && string.IsNullOrEmpty(DataDirectory) == false)
				throw new InvalidOperationException("You cannot specify both Url and DataDirectory at the same time. Url implies running in client/server mode against the remote server. DataDirectory implies running in embedded mode. Those two options are incompatible");

			if (string.IsNullOrEmpty(DataDirectory) == false && string.IsNullOrEmpty(DefaultDatabase) == false)
				throw new InvalidOperationException("You cannot specify DefaultDatabase value when the DataDirectory has been set, running in Embedded mode, the Default Database is not a valid option.");

			if (configuration != null && Url == null)
			{
				configuration.PostInit();
				if (configuration.RunInMemory || configuration.RunInUnreliableYetFastModeThatIsNotSuitableForProduction)
				{
					ResourceManagerId = Guid.NewGuid(); // avoid conflicts
				}
				configuration.SetSystemDatabase();
				DocumentDatabase = new DocumentDatabase(configuration);
				DocumentDatabase.SpinBackgroundWorkers();
				if (UseEmbeddedHttpServer)
				{
					SetStudioConfigToAllowSingleDb();
					httpServer = new HttpServer(configuration, DocumentDatabase);
					httpServer.StartListening();
				}
				else // we need to setup our own idle timer
				{
					idleTimer = new Timer(state =>
					{
						try
						{
							DocumentDatabase.RunIdleOperations();
						}
						catch (Exception e)
						{
							log.WarnException("Error during database idle operations", e);
						}
					},null, TimeSpan.FromMinutes(1), TimeSpan.FromMinutes(1));
				}
				databaseCommandsGenerator = () => new EmbeddedDatabaseCommands(DocumentDatabase, Conventions, currentSessionId);
				asyncDatabaseCommandsGenerator = () => new EmbeddedAsyncServerClient(DatabaseCommands);
			}
			else
			{
				base.InitializeInternal();
			}
		}