public override IEnumerable <ActorDefinition> ParseActors(XElement schemeMedium)
{
if (schemeMedium == null)
{
throw new ArgumentNullException("schemeMedium");
}
var actorsElement = schemeMedium.SingleOrDefault("Actors");
if (actorsElement == null)
{
throw new ArgumentNullException("");
}
var actors = new List <ActorDefinition>();
foreach (var element in actorsElement.Elements().ToList())
{
ActorDefinition actor = null;
if (element.Element("IsIdentity") != null)
{
actor = ActorDefinition.CreateIsIdentity(GetName(element), GetId(element.Element("IsIdentity")));
}
else if (element.Element("Rule") != null)
{
actor = ActorDefinition.CreateRule(GetName(element), GetRuleName(element.Element("Rule")));
var parameters = element.Element("Rule").Elements("RuleParameter");
foreach (var parameter in parameters)
{
actor.AddParameter(GetName(parameter), GetValue(parameter));
}
}
else if (element.Element("IsInRole") != null)
{
actor = ActorDefinition.CreateIsInRole(GetName(element), GetId(element.Element("IsInRole")));
}
if (actor != null)
{
actors.Add(actor);
}
}
return(actors);
}