public static void main(String[] args) {
		SlaveCertainBookStore bookStore = new SlaveCertainBookStore();
		int listen_on_port = 8081;
		SlaveBookStoreHTTPMessageHandler handler = new SlaveBookStoreHTTPMessageHandler(
				bookStore);
		String server_port_string = System
				.getProperty(BookStoreConstants.PROPERTY_KEY_SERVER_PORT);
		if (server_port_string != null) {
			try {
				listen_on_port = Integer.parseInt(server_port_string);
			} catch (NumberFormatException ex) {
				System.err.println(ex);
			}
		}
		if (BookStoreHTTPServerUtility.createServer(listen_on_port, handler)) {
			;
		}
	}