public override PropertyTreeMetaObject Process(PropertyTreeBinderImpl parent, PropertyTreeMetaObject target, PropertyTreeNavigator self, NodeList children)
{
Predicate <PropertyTreeNavigator> predicate = ImplicitDirective(target, "source");
var node = children.FindAndRemove(predicate).FirstOrDefault();
if (node != null)
{
IServiceProvider serviceProvider = parent.GetBasicServices(node);
var uriContext = node as IUriContext;
TargetSourceDirective ss;
ss = parent.DirectiveFactory.CreateTargetSource(node, uriContext);
if (ss != null)
{
try {
target = target.BindStreamingSource(ss, serviceProvider);
} catch (PropertyTreeException) {
throw;
} catch (Exception ex) {
if (ex.IsCriticalException())
{
throw;
}
parent._errors.FailedToLoadFromSource(ss.Uri, ex, node.FileLocation);
}
}
}
return(target);
}
public override PropertyTreeMetaObject StartStep(PropertyTreeMetaObject target, PropertyTreeNavigator self, NodeList children)
{
Predicate<PropertyTreeNavigator> predicate = ImplicitDirective(target, "source");
var node = children.FindAndRemove(predicate).FirstOrDefault();
if (node != null) {
IServiceProvider serviceProvider = Parent.GetBasicServices(node);
var uriContext = node as IUriContext;
TargetSourceDirective ss;
ss = this.DirectiveFactory.CreateTargetSource(node, uriContext);
if (ss != null) {
try {
target = target.BindStreamingSource(ss, serviceProvider);
} catch (Exception ex) {
if (ex.IsCriticalException())
throw;
Parent.errors.FailedToLoadFromSource(ss.Uri, ex, node.FileLocation);
}
}
}
return target;
}