protected virtual string CalculateDependent(DependentColumn col, Dictionary <string, object> cache, object val)
{
string t;
if (col.Calculator != null)
{
t = col.Calculator(val);
}
else
{
t = col.Map[val];
}
cache.Add(col.Name, t);
return(t);
}
public override void BuildAndSaveFile()
{
base.BuildAndSaveFile();
var csvDef = definition as CSVImportDefinition;
var results = new List <ValidationResult>() as ICollection <ValidationResult>;
if (!validation.IsModelValid(csvDef, out results))
{
var errors = string.Join(Environment.NewLine, results);
throw new Exception(errors);
}
var file = new StringBuilder();
var rand = new Random();
var cols = csvDef.Columns.OrderBy(x => x.ColumnOrder).ToArray();
var colLen = cols.Count();
//header row
var hdr = "";
for (var i = 0; i < colLen; i++)
{
hdr += cols[i].Name;
if (i < colLen - 1)
{
hdr += csvDef.Delimiter;
}
}
file.AppendLine(hdr);
//data rows
for (var i = 0; i < csvDef.RowCount; i++)
{
var row = "";
var rowCache = new Dictionary <string, object>();
for (var j = 0; j < colLen; j++)
{
var c = cols[j];
string temp;
switch (c.Type)
{
case ColumnType.AutoIncremented:
temp = CalculateIncremented(c as AutoIncrementedColumn, rowCache);
break;
case ColumnType.Randomized:
temp = CalculateRandomized(c as RandomizedColumn, rand, rowCache);
break;
case ColumnType.Dependent:
DependentColumn cDep = c as DependentColumn;
temp = CalculateDependent(cDep, rowCache, rowCache[cDep.DependsOn]);
break;
case ColumnType.Static:
temp = CalculateStatic(c as StaticColumn, rowCache);
break;
default:
throw new KeyNotFoundException(string.Format("Column Type {0} not supported", c.Type));
}
//wrap in quotes if contains set delimiter
if (temp.Contains(csvDef.Delimiter.Value))
{
temp = csvDef.QuoteCharacter + temp + csvDef.QuoteCharacter;
}
row += temp;
if (j < colLen - 1)
{
row += csvDef.Delimiter;
}
}
file.AppendLine(row);
}
//write to file
writer.Write(file.ToString());
}
