private string ParseAndToString(string ipRange)
{
IpRange result;
if (IpRange.TryParse(ipRange, out result))
{
return(result.ToString());
}
return("");
}
public ByteBlock this[ushort lid]
{
get { return(new IpRange(this.StartAddressColumn[lid], this.EndAddressColumn[lid]).ToString()); }
set
{
IpRange result;
IpRange.TryParse(value.ToString(), out result);
this.StartAddressColumn[lid] = result.StartInclusive;
this.EndAddressColumn[lid] = result.EndInclusive;
}
}
public void TryWhere(Operator op, ByteBlock value, ShortSet result, ExecutionDetails details)
{
// Convert the value to an IP Range. Error if not.
IpRange valueRange;
if (!IpRange.TryParse(value.ToString(), out valueRange))
{
details.AddError(ExecutionDetails.UnableToConvertType, value, this.Name, "IP Range");
return;
}
if (op == Operator.Matches)
{
// Matches finds rows which overlap the passed range.
// Get rows which *don't overlap* because the start address is after the range being searched for
this.StartAddressColumn.TryWhere(Operator.GreaterThan, valueRange.EndInclusive, result, details);
// Add rows which *don't overlap* because the end address is before the range being searched for
this.EndAddressColumn.TryWhere(Operator.LessThan, valueRange.StartInclusive, result, details);
// Negate to find the set which *do* overlap
result.Not();
}
else if (op == Operator.Equals || op == Operator.MatchesExact || op == Operator.NotEquals)
{
// Equals and MatchExact find rows which exactly equal the range being searched for
// Find rows with the wrong start
this.StartAddressColumn.TryWhere(Operator.NotEquals, valueRange.StartInclusive, result, details);
// Add rows the wrong end
this.EndAddressColumn.TryWhere(Operator.NotEquals, valueRange.EndInclusive, result, details);
// Negate to find the set which are equal (both start and end match)
if (op != Operator.NotEquals)
{
result.Not();
}
}
else if (op == Operator.LessThan)
{
// Find rows which end before the start of the search range
this.EndAddressColumn.TryWhere(Operator.LessThan, valueRange.StartInclusive, result, details);
}
else if (op == Operator.GreaterThan)
{
// Find rows start after the end of the search range
this.StartAddressColumn.TryWhere(Operator.GreaterThan, valueRange.EndInclusive, result, details);
}
else if (op == Operator.LessThanOrEqual)
{
// Find rows which end before the end of the search range
this.EndAddressColumn.TryWhere(Operator.LessThanOrEqual, valueRange.EndInclusive, result, details);
}
else if (op == Operator.GreaterThanOrEqual)
{
// Find rows which start after the start of the search range
this.StartAddressColumn.TryWhere(Operator.GreaterThanOrEqual, valueRange.StartInclusive, result, details);
}
else
{
details.AddError(ExecutionDetails.ColumnDoesNotSupportOperator, op, this.Name);
}
}