public void Exec(IResource res, IActionParameterStore actionStore)
{
Guard.NullArgument(res, "res");
Guard.NullArgument(actionStore, "actionStore");
if (res.Type != "RSSItem")
{
throw new ArgumentException("EnclosureDownloadRuleAction was registered for RSSItem only but there resource with type = '" + res.Type + "'");
}
Tracer._Trace("Execute rule: EnclosureDownloadRuleAction");
if (res.HasProp(Props.EnclosureURL))
{
EnclosureDownloadManager.PlanToDownload(res);
}
}
/// <summary>
/// Queue for download those enclosures of the feed's unread items which
/// are not yet downloaded or queued.
/// </summary>
/// <param name="feed">A feed resource which items are to be analyzed.</param>
private void ScheduleEnclosures(IResource feed)
{
IResourceList items = feed.GetLinksOfType(Props.RSSItemResource, Props.RSSItem);
items = items.Intersect(Core.ResourceStore.FindResourcesWithProp(Props.RSSItemResource, Core.Props.IsUnread), true);
items = items.Minus(Core.ResourceStore.FindResourcesWithProp(Props.RSSItemResource, Core.Props.IsDeleted));
IResourceList itemsWithEncls = Core.ResourceStore.FindResources(null, Props.EnclosureDownloadingState, (int)EnclosureDownloadState.NotDownloaded);
items = items.Intersect(itemsWithEncls, true);
foreach (IResource item in items)
{
EnclosureDownloadManager.PlanToDownload(item);
}
}
