public string GetIndex(PartItem partItem)
{
return(Stammer.Stamm(partItem.PartNumber)
+ @" " + String.Join(" ", partItem.Name.Split(' ').Select(Stammer.Stamm))
+ @" " + Stammer.Stamm(partItem.Brand)
+ @" " + String.Join(@" ", partItem.Analogs.Split(' ').Select(Stammer.Stamm)));
}
private float GetWeight(string text, string[] tokens)
{
var originTokens = GetTokens(text);
float equals = originTokens.Count(tokens.Contains);
equals = equals / originTokens.Length;
float starts = (from o in originTokens from t in tokens where o.StartsWith(t) select o).Count();
starts = starts / originTokens.Length;
float matches =
(from o in originTokens
from t in tokens
where o.Contains(t)
select(float) t.Length / o.Length).Sum();
matches = matches / _stammer.Stamm(text).Length;
return((equals * 100 + starts * 5 + matches) / 3);
}
public PartItem BuildFrom(CatalogImportItem item)
{
var analogs = String.Join(" ", item.Analogs.Select(a => a.Replace(" ", "")));
var partItem = new PartItem()
{
Balance = item.Balance,
Brand = item.Brand,
Commentary = item.Commentary,
Name = item.Name,
Price = item.Price,
PartNumber = item.PartNumber,
StammedPartNumber = Stammer.Stamm(item.PartNumber),
SourceArgument = item.SourceArgument,
Analogs = analogs
};
partItem.SearchString = IndexFormatter.GetIndex(partItem);
return(partItem);
}
private string[] GetSearchTokens(string text)
{
return(text.Split(' ').Select(t => Stammer.Stamm(t)).Where(t => t.Length > 0).ToArray());
}
protected override IEnumerable <string> GetSearchTokens(string text)
{
return(text.Split(' ').Select(t => Stammer.Stamm(t)).Where(t => t.Length > 0).ToArray());
}