public class EntryPriceInd: IBar2DoubleHandler, IContextUses
    {
        public IList<double> Execute(ISecurity source)
        {

            var list = new double[Context.BarsCount];
            for (int i = 0; i < Context.BarsCount; i++)
            {
                var entry = source.Positions.GetLastPosition(i);
                list[i] = entry != null ?  entry.EntryPrice : 0;
            }

            return list;
        }

        public IContext Context { set; private get; }
      
    }