public IEnumerable <Examination> AdvancedSearch(AdvancedSearchDTO advancedSearchDTO)
{
IEnumerable <Examination> examinations = BasicSearch(advancedSearchDTO.InitialParameters);
if (examinations.Any())
{
return(examinations);
}
IAdvancedSearchStrategy strategy = GetAdvancedSearchStrategy(advancedSearchDTO);
return(ApplyStrategy(strategy));
}
private IEnumerable <Examination> ApplyStrategy(IAdvancedSearchStrategy strategy)
{
for (BasicSearchDTO parameters = strategy.GetSearchParameters();
parameters != null;
parameters = strategy.GetSearchParameters())
{
IEnumerable <Examination> availableExaminations = BasicSearch(parameters);
if (availableExaminations.Any())
{
return(availableExaminations);
}
}
return(Enumerable.Empty <Examination>());
}
