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);
}
}
private static QueryFilter SimplifyCompositeFilter <TFilter, TOther>(TFilter filter) where TFilter : CompositeFilter where TOther : CompositeFilter
{
List <QueryFilter> list = new List <QueryFilter>();
Stack <QueryFilter> stack = new Stack <QueryFilter>();
for (int i = filter.Filters.Count - 1; i >= 0; i--)
{
stack.Push(filter.Filters[i]);
}
while (stack.Count > 0)
{
QueryFilter queryFilter = stack.Pop();
NotFilter notFilter = queryFilter as NotFilter;
if (queryFilter.IsAtomic || (notFilter != null && notFilter.Filter.IsAtomic))
{
if (!list.Contains(queryFilter))
{
list.Add(queryFilter);
}
}
else if (notFilter != null)
{
if (notFilter.Filter is TOther)
{
TOther tother = notFilter.Filter as TOther;
for (int j = tother.Filters.Count - 1; j >= 0; j--)
{
QueryFilter filter2 = tother.Filters[j];
stack.Push(QueryFilter.NotFilter(filter2));
}
}
else if (notFilter.Filter is NotFilter)
{
stack.Push((notFilter.Filter as NotFilter).Filter);
}
else
{
QueryFilter item = QueryFilter.SimplifyFilter(queryFilter);
if (!list.Contains(item))
{
list.Add(item);
}
}
}
else if (queryFilter is TFilter)
{
TFilter tfilter = queryFilter as TFilter;
for (int k = tfilter.Filters.Count - 1; k >= 0; k--)
{
QueryFilter item2 = tfilter.Filters[k];
stack.Push(item2);
}
}
else
{
QueryFilter item3 = QueryFilter.SimplifyFilter(queryFilter);
if (!list.Contains(item3))
{
list.Add(item3);
}
}
}
if (typeof(TFilter).Equals(typeof(AndFilter)))
{
return(QueryFilter.AndTogether(list.ToArray()));
}
return(QueryFilter.OrTogether(list.ToArray()));
}
public override bool Equals(object obj)
{
NotFilter notFilter = obj as NotFilter;
return(notFilter != null && notFilter.GetType() == base.GetType() && notFilter.filter.Equals(this.filter));
}
private static void GenerateInfixString(QueryFilter filter, StringBuilder sb, FilterSchema filterSchema)
{
if (filter is CompositeFilter)
{
sb.Append("(");
CompositeFilter compositeFilter = (CompositeFilter)filter;
int filterCount = compositeFilter.FilterCount;
for (int i = 0; i < filterCount - 1; i++)
{
sb.Append("(");
QueryFilter.GenerateInfixString(compositeFilter.Filters[i], sb, filterSchema);
sb.Append(") ");
if (filter is AndFilter)
{
sb.Append(filterSchema.And);
}
else if (filter is OrFilter)
{
sb.Append(filterSchema.Or);
}
sb.Append(" ");
}
sb.Append("(");
QueryFilter.GenerateInfixString(compositeFilter.Filters[filterCount - 1], sb, filterSchema);
sb.Append("))");
return;
}
if (filter is NotFilter)
{
NotFilter notFilter = filter as NotFilter;
sb.Append(filterSchema.Not);
sb.Append("(");
QueryFilter.GenerateInfixString(notFilter.Filter, sb, filterSchema);
sb.Append(")");
return;
}
if (filter is TextFilter)
{
TextFilter textFilter = filter as TextFilter;
string propertyName = filterSchema.GetPropertyName(textFilter.Property.Name);
if (!string.IsNullOrEmpty(propertyName))
{
sb.Append(propertyName);
sb.Append(filterSchema.Like);
}
if (textFilter.MatchOptions == MatchOptions.FullString || textFilter.MatchOptions == MatchOptions.ExactPhrase || filterSchema.SupportQuotedPrefix)
{
sb.Append(filterSchema.QuotationMark);
}
if (textFilter.MatchOptions == MatchOptions.Suffix || textFilter.MatchOptions == MatchOptions.SubString)
{
sb.Append("*");
}
sb.Append(filterSchema.EscapeStringValue(textFilter.Text));
if (textFilter.MatchOptions == MatchOptions.Prefix || textFilter.MatchOptions == MatchOptions.SubString || textFilter.MatchOptions == MatchOptions.PrefixOnWords)
{
sb.Append("*");
}
if (textFilter.MatchOptions == MatchOptions.FullString || textFilter.MatchOptions == MatchOptions.ExactPhrase || filterSchema.SupportQuotedPrefix)
{
sb.Append(filterSchema.QuotationMark);
return;
}
}
else
{
if (filter is ComparisonFilter)
{
ComparisonFilter comparisonFilter = filter as ComparisonFilter;
sb.Append(filterSchema.GetPropertyName(comparisonFilter.Property.Name));
sb.Append(filterSchema.GetRelationalOperator(comparisonFilter.ComparisonOperator));
sb.Append(filterSchema.QuotationMark);
sb.Append(filterSchema.EscapeStringValue(comparisonFilter.PropertyValue));
sb.Append(filterSchema.QuotationMark);
return;
}
if (filter is ExistsFilter)
{
sb.Append(filterSchema.GetExistsFilter(filter as ExistsFilter));
return;
}
if (filter is FalseFilter)
{
sb.Append(filterSchema.GetFalseFilter());
}
}
}
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);
}
