public static TypeFilter FilterConverter(PropertiesFilter filters)
{
var result = new TypeFilter(new Dictionary <string, TypeFilter>(filters.Count));
foreach (var filter in filters.Values.Where(f => f.Value != null))
{
switch (filter.Value)
{
case PropertiesFilter innerFilter:
result.PropertyFilters.Add(filter.Key.Name, FilterConverter(innerFilter));
break;
case Delegate predecate:
result.PropertyFilters.Add(filter.Key.Name, new TypeFilter(predecate));
break;
default:
if (filter.SourceList != null)
{
result.PropertyFilters.Add(filter.Key.Name, new TypeFilter(CreateStringFilter(filter.Value.ToString(), filter.SourceList)));
}
else
{
result.PropertyFilters.Add(filter.Key.Name, new TypeFilter(CreateStringFilter(filter.Value.ToString())));
}
break;
}
}
return(result.PropertyFilters.Count > 0 ? result : null);
}
/// <summary>
/// Create predicate from filter's data
/// </summary>
/// <typeparam name="T">Type of filtered source</typeparam>
/// <param name="filter">|Filter's data</param>
/// <returns>Filter's predicate</returns>
public static Func <T, bool> CreateFilter <T>(PropertiesFilter filter)
{
var propertyFilters = FilterConverter(filter);
if (propertyFilters == null)
{
return(null);
}
var validator = PropertiesFilter.CreateFilter <T>(propertyFilters);
return(validator);
}