private TypeMapRule getRule(DataType dataType)
{
foreach(TypeMapRule rule in rules) {
bool match =
(rule.FromType == dataType.Name) &&
(rule.FromPrecision == dataType.Precision.ToString() || rule.FromPrecision == "*") &&
(rule.FromScale == dataType.Scale.ToString() || rule.FromScale == "*");
if (match)
{
return rule;
}
}
return null;
}
public DataType MapDataType(DataType fromDataType)
{
TypeMapRule rule = getRule(fromDataType);
if (rule == null)
{
return fromDataType.Clone();
}
DataType dt = new DataType();
dt.Name = rule.ToType;
if (string.IsNullOrEmpty(rule.ToPrecision))
{
dt.Precision = null;
}
else if (rule.ToPrecision == "=")
{
dt.Precision = fromDataType.Precision;
}
else
{
dt.Precision = long.Parse(rule.ToPrecision);
}
if (string.IsNullOrEmpty(rule.ToScale))
{
dt.Scale = null;
}
else if (rule.ToScale == "=")
{
dt.Scale = fromDataType.Scale;
}
else
{
dt.Scale = long.Parse(rule.ToScale);
}
return dt;
}
public DataType Clone()
{
DataType dt = new DataType(this.Name, this.Precision, this.Scale);
return dt;
}