public override IEnumerable <Row> Execute(IEnumerable <Row> rows)
{
foreach (var row in rows)
{
if (ShouldRun(row))
{
foreach (var pair in Parameters)
{
_context.Put(pair.Value.Name, pair.Value.Value ?? row[pair.Key]);
}
var sw = StringWriters.GetObject();
Velocity.Evaluate(_context, sw, string.Empty, Template);
var sb = sw.GetStringBuilder();
row[OutKey] = Common.ConversionMap[OutType](sb.ToString());
sb.Clear();
StringWriters.PutObject(sw);
foreach (var pair in Parameters)
{
_context.Remove(pair.Value.Name);
}
}
else
{
Skip();
}
yield return(row);
}
}
