private static IEnumerable <ExpandedOrchestrationStatus> ApplyFilter(this IEnumerable <ExpandedOrchestrationStatus> orchestrations,
FilterClause filter)
{
if (string.IsNullOrEmpty(filter.FieldName))
{
foreach (var orchestration in orchestrations)
{
yield return(orchestration);
}
}
else
{
if (filter.Predicate == null)
{
// if filter expression is invalid, returning nothing
yield break;
}
var propInfo = typeof(ExpandedOrchestrationStatus)
.GetProperties()
.FirstOrDefault(p => p.Name.Equals(filter.FieldName, StringComparison.InvariantCultureIgnoreCase));
if (propInfo == null)
{
// if field name is invalid, returning nothing
yield break;
}
foreach (var orchestration in orchestrations)
{
if (filter.Predicate(orchestration.GetPropertyValueAsString(propInfo)))
{
yield return(orchestration);
}
}
}
}
// Applies a filter to a collection of items
internal static IEnumerable <T> ApplyFilter <T>(this IEnumerable <T> items, FilterClause filter)
{
if (string.IsNullOrEmpty(filter.FieldName))
{
// if field to be filtered is not specified, returning everything
foreach (var orchestration in items)
{
yield return(orchestration);
}
}
else
{
if (filter.Predicate == null)
{
// if filter expression is invalid, returning nothing
yield break;
}
var propInfo = typeof(T).GetProperties()
.FirstOrDefault(p => p.Name.Equals(filter.FieldName, StringComparison.InvariantCultureIgnoreCase));
if (propInfo == null)
{
// if field name is invalid, returning nothing
yield break;
}
foreach (var item in items)
{
if (filter.Predicate(item.GetPropertyValueAsString(propInfo)))
{
yield return(item);
}
}
}
}
