private IEnumerable <string> GetObjectLink(IStoreGraph graph, string source, string segment)
{
if (string.Compare(segment, Constants.AnyPath, StringComparison.Ordinal) == 0)
{
return(graph.O(source).Select(x => x.Subject));
}
else
{
return(graph.PO(segment, source).Select(x => x.Subject));
}
}
private IEnumerable <string> GetByLevel(IStoreGraph graph, IEnumerable <string> sources, int level, bool isOutgoing)
{
if (level == 0)
{
return(Enumerable.Empty <string>());
}
IEnumerable <string> next = new List <string>();
foreach (var source in sources)
{
var items = isOutgoing
? graph.S(source).Where(x => x.Object.IsID).Select(y => y.Object.Id).Distinct()
: graph.O(source).Select(y => y.Subject).Distinct();
var targets = GetByLevel(graph, items, level - 1, isOutgoing);
next = next.Concat(targets);
}
return(sources.Concat(next).Distinct());
}