/// <summary>
/// Gets the Query for the given Expression.
/// </summary>
/// <param name="expression">
/// The Expression to get the Query for.
/// </param>
/// <returns>
/// An instance of Query.
/// </returns>
public Query GetQuery(Expression expression)
{
QueryVisitor visitor = new QueryVisitor(this);
return(visitor.GetQuery(expression));
}
/// <summary>
/// Parst den übergeben String und gibt das Ergebnis als HttpQuery Objekt mit den Ergebnissen wieder zurück.
/// </summary>
/// <param name="query"></param>
/// <returns></returns>
public static HttpQuery Query(string query)
{
AntlrInputStream input = new AntlrInputStream(query);
var lexer = new HttpQueryLexer(input);
CommonTokenStream tokens = new CommonTokenStream(lexer);
var parser = new HttpQueryParser(tokens);
var context = parser.init();
if (context.exception == null && parser.NumberOfSyntaxErrors == 0)
{
var visitor = new QueryVisitor<object>();
visitor.Visit(context);
return visitor.GetQuery();
}
else
{
return new HttpQuery() { Exception = new Exception("Syntax Error") };
}
}