} else {
System.out.println("Micro XQuery 0.1\n Usage java -jar mxquery.jar querystring or java -jar mxquery.jar queryfile\n Executing sample query\n ");
}
File file = new File(query);
XQueryExpression exp;
if (file.exists()) {
exp = executor.prepareQuery(FileReader.UriToString(query));
} else {
exp = executor.prepareQuery(query);
}