private void OnPluginChanged(object sender, ExtensionNodeEventArgs args)
{
DynamicItemSource source = args.ExtensionObject as DynamicItemSource;
switch (args.Change)
{
case ExtensionChange.Add:
lock (universe_lock) {
dynamicUniverses[source] = new UniverseCollection();
}
source.ItemsAvailable += OnItemsAvailable;
source.ItemsUnavailable += OnItemsUnavailable;
Log <UniverseManager> .Debug("Added new ItemSource: {0}", source.Name);
break;
case ExtensionChange.Remove:
source.ItemsAvailable -= OnItemsAvailable;
source.ItemsUnavailable -= OnItemsUnavailable;
lock (universe_lock) {
dynamicUniverses.Remove(source);
}
Log <UniverseManager> .Debug("Removed ItemSource: {0}", source.Name);
break;
}
}
private void OnItemsUnavailable(object sender, ItemsUnavailableEventArgs args)
{
DynamicItemSource source = sender as DynamicItemSource;
if (source == null)
{
Log <UniverseManager> .Error("OnItemsUnavailable called from a non-DynamicItemSource.");
return;
}
lock (universe_lock) {
foreach (Item item in args.unavailableItems)
{
dynamicUniverses[source].Remove(item.UniqueId);
}
}
}
private void OnItemsAvailable(object sender, ItemsAvailableEventArgs args)
{
DynamicItemSource source = sender as DynamicItemSource;
if (source == null)
{
Log <UniverseManager> .Error("OnItemsAvailable called from a non-DynamicItemSource.");
return;
}
lock (universe_lock) {
foreach (Item item in args.newItems)
{
try {
dynamicUniverses[source].Add(item.UniqueId, item);
} catch (ArgumentException) {
Log <UniverseManager> .Error("DynamicItemSource {0} attmpted to add duplicate Item {1}", source.Name, item.UniqueId);
}
}
}
}
