internal static QueryFilter SimplifyFilter(QueryFilter filter)
{
if (filter == null)
{
return(null);
}
if (filter.IsAtomic)
{
return(filter);
}
if (!(filter is NotFilter) && !(filter is CompositeFilter))
{
return(filter);
}
NotFilter notFilter = filter as NotFilter;
if (notFilter != null)
{
QueryFilter filter2 = notFilter.Filter;
if (filter2.IsAtomic)
{
return(filter);
}
if (filter2 is NotFilter)
{
return(QueryFilter.SimplifyFilter(((NotFilter)filter2).Filter));
}
if (filter2 is CompositeFilter)
{
CompositeFilter compositeFilter = (CompositeFilter)filter2;
QueryFilter[] array = new QueryFilter[compositeFilter.Filters.Count];
for (int i = 0; i < array.Length; i++)
{
array[i] = QueryFilter.NotFilter(compositeFilter.Filters[i]);
}
if (filter2 is AndFilter)
{
return(QueryFilter.SimplifyFilter(QueryFilter.OrTogether(array)));
}
if (filter2 is OrFilter)
{
return(QueryFilter.SimplifyFilter(QueryFilter.AndTogether(array)));
}
}
if (filter2 is ComparisonFilter)
{
ComparisonFilter comparisonFilter = (ComparisonFilter)filter2;
ComparisonOperator comparisonOperator;
switch (comparisonFilter.ComparisonOperator)
{
case ComparisonOperator.Equal:
comparisonOperator = ComparisonOperator.NotEqual;
break;
case ComparisonOperator.NotEqual:
comparisonOperator = ComparisonOperator.Equal;
break;
case ComparisonOperator.LessThan:
comparisonOperator = ComparisonOperator.GreaterThanOrEqual;
break;
case ComparisonOperator.LessThanOrEqual:
comparisonOperator = ComparisonOperator.GreaterThan;
break;
case ComparisonOperator.GreaterThan:
comparisonOperator = ComparisonOperator.LessThanOrEqual;
break;
case ComparisonOperator.GreaterThanOrEqual:
comparisonOperator = ComparisonOperator.LessThan;
break;
default:
return(filter);
}
return(new ComparisonFilter(comparisonOperator, comparisonFilter.Property, comparisonFilter.PropertyValue));
}
return(QueryFilter.NotFilter(QueryFilter.SimplifyFilter(filter2)));
}
else
{
AndFilter andFilter = filter as AndFilter;
if (andFilter != null)
{
return(QueryFilter.SimplifyCompositeFilter <AndFilter, OrFilter>(andFilter));
}
OrFilter orFilter = filter as OrFilter;
if (orFilter != null)
{
return(QueryFilter.SimplifyCompositeFilter <OrFilter, AndFilter>(orFilter));
}
return(filter);
}
}
public static bool FilterMatches(QueryFilter filter, IReadOnlyPropertyBag obj, Func <PropertyDefinition, object> getValueDelegate)
{
if (filter == null)
{
throw new ArgumentNullException("filter");
}
if (getValueDelegate == null && obj == null)
{
throw new ArgumentNullException("getValueDelegate && obj");
}
NotFilter notFilter = filter as NotFilter;
if (notFilter != null)
{
return(!OpathFilterEvaluator.FilterMatches(notFilter.Filter, obj, getValueDelegate));
}
AndFilter andFilter = filter as AndFilter;
if (andFilter != null)
{
foreach (QueryFilter filter2 in andFilter.Filters)
{
if (!OpathFilterEvaluator.FilterMatches(filter2, obj, getValueDelegate))
{
return(false);
}
}
return(true);
}
OrFilter orFilter = filter as OrFilter;
if (orFilter != null)
{
foreach (QueryFilter filter3 in orFilter.Filters)
{
if (OpathFilterEvaluator.FilterMatches(filter3, obj, getValueDelegate))
{
return(true);
}
}
return(false);
}
SinglePropertyFilter singlePropertyFilter = filter as SinglePropertyFilter;
if (singlePropertyFilter != null)
{
SimpleProviderPropertyDefinition simpleProviderPropertyDefinition = singlePropertyFilter.Property as SimpleProviderPropertyDefinition;
if (simpleProviderPropertyDefinition != null && simpleProviderPropertyDefinition.IsFilterOnly)
{
throw new FilterOnlyAttributesException(simpleProviderPropertyDefinition.Name);
}
object obj2 = (obj != null) ? obj[singlePropertyFilter.Property] : getValueDelegate(singlePropertyFilter.Property);
if (OpathFilterEvaluator.IsNullOrEmpty(obj2))
{
return(OpathFilterEvaluator.FilterMatchesValue(singlePropertyFilter, null));
}
ICollection collection = obj2 as ICollection;
if (collection != null)
{
foreach (object value in collection)
{
if (OpathFilterEvaluator.FilterMatchesValue(singlePropertyFilter, value))
{
return(true);
}
}
return(false);
}
return(OpathFilterEvaluator.FilterMatchesValue(singlePropertyFilter, obj2));
}
else
{
CSharpFilter <IReadOnlyPropertyBag> csharpFilter = filter as CSharpFilter <IReadOnlyPropertyBag>;
if (csharpFilter != null)
{
if (obj == null)
{
throw new ArgumentNullException("obj");
}
return(csharpFilter.Match(obj));
}
else
{
if (filter is TrueFilter)
{
return(true);
}
if (filter is FalseFilter)
{
return(false);
}
throw new NotSupportedException("The specified filter type \"" + filter.GetType().Name + "\" is currently not supported.");
}
}
bool result;
return(result);
}