private void DiscardToken()
{
_lookaheadFirst = _lookaheadSecond.Clone();
if (_tokenSequence.Any())
{
_lookaheadSecond = _tokenSequence.Pop();
}
else
{
_lookaheadSecond = new DslToken(TokenType.SequenceTerminator, string.Empty);
}
}
//private void EqualityMatchCondition()
//{
// _currentFilterInstruction.Object = GetObject(_lookaheadFirst);
// DiscardToken();
// _currentFilterInstruction.Operator = GetOperator(_lookaheadFirst);
// DiscardToken();
// _currentFilterInstruction.Value = _lookaheadFirst.Value;
// DiscardToken();
//}
//private DslObject GetObject(DslToken token)
//{
// switch (token.TokenType)
// {
// case TokenType.Application:
// return DslObject.Application;
// case TokenType.ExceptionType:
// return DslObject.ExceptionType;
// case TokenType.Fingerprint:
// return DslObject.Fingerprint;
// case TokenType.Message:
// return DslObject.Message;
// case TokenType.StackFrame:
// return DslObject.StackFrame;
// default:
// throw new Exception(ExpectedObjectErrorText + token.Value);
// }
//}
private Operation GetOperator(DslToken token)
{
switch (token.TokenType)
{
case TokenType.Equals:
return(Operation.Equals);
case TokenType.NotEquals:
return(Operation.NotEquals);
case TokenType.GreaterThan:
return(Operation.GreaterThan);
case TokenType.LessThan:
return(Operation.LessThan);
default:
throw new Exception("Expected =, <>, >, < but found: " + token.Value);
}
}
private void PrepareLookaheads()
{
_lookaheadFirst = _tokenSequence.Pop();
_lookaheadSecond = _tokenSequence.Pop();
}
//private void ParseInCondition(DslOperator inOperator)
//{
// _currentFilterInstruction.Operator = inOperator;
// _currentFilterInstruction.Values = new List<string>();
// _currentFilterInstruction.Object = GetObject(_lookaheadFirst);
// DiscardToken();
// if (inOperator == DslOperator.In)
// DiscardToken(TokenType.In);
// else if (inOperator == DslOperator.NotIn)
// DiscardToken(TokenType.NotIn);
// DiscardToken(TokenType.OpenParenthesis);
// StringLiteralList();
// DiscardToken(TokenType.CloseParenthesis);
//}
//private void StringLiteralList()
//{
// _currentFilterInstruction.Values.Add(ReadToken(TokenType.StringValue).Value);
// DiscardToken(TokenType.StringValue);
// StringLiteralListNext();
//}
//private void StringLiteralListNext()
//{
// if (_lookaheadFirst.TokenType == TokenType.Comma)
// {
// DiscardToken(TokenType.Comma);
// _currentFilterInstruction.Values.Add(ReadToken(TokenType.StringValue).Value);
// DiscardToken(TokenType.StringValue);
// StringLiteralListNext();
// }
// else
// {
// // nothing
// }
//}
//private void MatchConditionNext()
//{
// if (_lookaheadFirst.TokenType == TokenType.And)
// {
// AndMatchCondition();
// }
// else if (_lookaheadFirst.TokenType == TokenType.Or)
// {
// OrMatchCondition();
// }
// else if (_lookaheadFirst.TokenType == TokenType.Between)
// {
// DateCondition();
// }
// else
// {
// throw new Exception("Expected AND, OR or BETWEEN but found: " + _lookaheadFirst.Value);
// }
//}
//private void AndMatchCondition()
//{
// _currentFilterInstruction.LogOpToNextCondition = DslLogicalOperator.And;
// DiscardToken(TokenType.And);
// MatchCondition();
//}
//private void OrMatchCondition()
//{
// _currentFilterInstruction.LogOpToNextCondition = DslLogicalOperator.Or;
// DiscardToken(TokenType.Or);
// MatchCondition();
//}
//private void DateCondition()
//{
// DiscardToken(TokenType.Between);
// _queryModel.DateRange = new DateRange();
// _queryModel.DateRange.From = DateTime.ParseExact(ReadToken(TokenType.DateTimeValue).Value, "yyyy-MM-dd HH:mm:ss", CultureInfo.InvariantCulture);
// DiscardToken(TokenType.DateTimeValue);
// DiscardToken(TokenType.And);
// _queryModel.DateRange.To = DateTime.ParseExact(ReadToken(TokenType.DateTimeValue).Value, "yyyy-MM-dd HH:mm:ss", CultureInfo.InvariantCulture);
// DiscardToken(TokenType.DateTimeValue);
// DateConditionNext();
//}
//private void DateConditionNext()
//{
// if (_lookaheadFirst.TokenType == TokenType.Limit)
// {
// Limit();
// }
// else if (_lookaheadFirst.TokenType == TokenType.SequenceTerminator)
// {
// // nothing
// }
// else
// {
// throw new Exception("Expected LIMIT or the end of the query but found: " + _lookaheadFirst.Value);
// }
//}
//private void Limit()
//{
// DiscardToken(TokenType.Limit);
// int limit = 0;
// bool success = int.TryParse(ReadToken(TokenType.Number).Value, out limit);
// if (success)
// _queryModel.Limit = limit;
// else
// throw new Exception("Expected an integer number but found " + ReadToken(TokenType.Number).Value);
// DiscardToken(TokenType.Number);
//}
private bool IsVarName(DslToken token)
{
return(token.TokenType == TokenType.VarName);
}