/// <summary>
/// Evals the specified source.
/// </summary>
/// <param name="source">The source.</param>
/// <param name="element">The element.</param>
/// <returns></returns>
public static bool Eval(EntityObject source, FilterElement element)
{
if (source == null)
{
throw new ArgumentNullException("source");
}
if (element == null)
{
throw new ArgumentNullException("element");
}
switch (element.Type)
{
case FilterElementType.Abstract:
throw new NotSupportedException();
case FilterElementType.Exists:
throw new NotSupportedException();
case FilterElementType.NotExists:
throw new NotSupportedException();
case FilterElementType.In:
throw new NotSupportedException();
case FilterElementType.NotIn:
throw new NotSupportedException();
case FilterElementType.AndBlock:
{
foreach (FilterElement childElement in element.ChildElements)
{
if (!Eval(source, childElement))
{
return(false);
}
}
return(true);
}
case FilterElementType.OrBlock:
{
foreach (FilterElement childElement in element.ChildElements)
{
if (Eval(source, childElement))
{
return(true);
}
}
return(false);
}
case FilterElementType.Between:
{
object propertyValue = GetPropertyValue(source, element.Source);
object start = element.ChildElements[0].Value;
object end = element.ChildElements[1].Value;
int result1 = Compare(start, propertyValue);
int result2 = Compare(propertyValue, end);
return(result1 <= 0 && result2 <= 0);
}
case FilterElementType.Contains:
{
string propertyValue = (string)GetPropertyValue(source, element.Source);
string mask = (string)element.Value;
if (propertyValue == null || mask == null)
{
return(false);
}
return(propertyValue.IndexOf(mask, StringComparison.OrdinalIgnoreCase) != -1);
}
case FilterElementType.NotContains:
{
string propertyValue = (string)GetPropertyValue(source, element.Source);
string mask = (string)element.Value;
if (propertyValue == null || mask == null)
{
return(false);
}
return(!(propertyValue.IndexOf(mask, StringComparison.OrdinalIgnoreCase) != -1));
}
case FilterElementType.Custom:
throw new NotSupportedException();
case FilterElementType.EndsWith:
{
string propertyValue = (string)GetPropertyValue(source, element.Source);
string mask = (string)element.Value;
if (propertyValue == null || mask == null)
{
return(false);
}
return(propertyValue.EndsWith(mask, StringComparison.OrdinalIgnoreCase));
}
case FilterElementType.NotEndsWith:
{
string propertyValue = (string)GetPropertyValue(source, element.Source);
string mask = (string)element.Value;
if (propertyValue == null || mask == null)
{
return(false);
}
return(!propertyValue.EndsWith(mask, StringComparison.OrdinalIgnoreCase));
}
case FilterElementType.StartsWith:
{
string propertyValue = (string)GetPropertyValue(source, element.Source);
string mask = (string)element.Value;
if (propertyValue == null || mask == null)
{
return(false);
}
return(propertyValue.StartsWith(mask, StringComparison.OrdinalIgnoreCase));
}
case FilterElementType.NotStartsWith:
{
string propertyValue = (string)GetPropertyValue(source, element.Source);
string mask = (string)element.Value;
if (propertyValue == null || mask == null)
{
return(false);
}
return(!propertyValue.StartsWith(mask, StringComparison.OrdinalIgnoreCase));
}
case FilterElementType.Equal:
{
object propertyValue = GetPropertyValue(source, element.Source);
object srcValue = element.Value;
return(Compare(propertyValue, srcValue) == 0);
}
case FilterElementType.NotEqual:
{
object propertyValue = GetPropertyValue(source, element.Source);
object srcValue = element.Value;
return(Compare(propertyValue, srcValue) != 0);
}
case FilterElementType.Greater:
{
object propertyValue = GetPropertyValue(source, element.Source);
object srcValue = element.Value;
return(Compare(propertyValue, srcValue) > 0);
}
case FilterElementType.GreaterOrEqual:
{
object propertyValue = GetPropertyValue(source, element.Source);
object srcValue = element.Value;
return(Compare(propertyValue, srcValue) >= 0);
}
case FilterElementType.IsNotNull:
{
object propertyValue = GetPropertyValue(source, element.Source);
return(propertyValue != null);
}
case FilterElementType.IsNull:
{
object propertyValue = GetPropertyValue(source, element.Source);
return(propertyValue == null);
}
case FilterElementType.Less:
{
object propertyValue = GetPropertyValue(source, element.Source);
object srcValue = element.Value;
return(Compare(propertyValue, srcValue) < 0);
}
case FilterElementType.LessOrEqual:
{
object propertyValue = GetPropertyValue(source, element.Source);
object srcValue = element.Value;
return(Compare(propertyValue, srcValue) <= 0);
}
case FilterElementType.Like:
{
string propertyValue = (string)GetPropertyValue(source, element.Source);
string mask = (string)element.Value;
if (propertyValue == null || mask == null)
{
return(false);
}
// TODO: Support % Only
mask = mask.Replace('%', '*');
return(WildcardUtil.PatternMatch(propertyValue, mask));
}
case FilterElementType.NotLike:
{
string propertyValue = (string)GetPropertyValue(source, element.Source);
string mask = (string)element.Value;
if (propertyValue == null || mask == null)
{
return(false);
}
// TODO: Support % Only
mask = mask.Replace('%', '*');
return(!WildcardUtil.PatternMatch(propertyValue, mask));
}
}
throw new NotSupportedException();
}