fixed indexer setting load/reload.

NzbDrone.Core/Indexers/IndexerWithSetting.cs

@@ -0,0 +1,30 @@
+using System;
+using NzbDrone.Common.Eventing;
+
+namespace NzbDrone.Core.Indexers
+{
+    public abstract class IndexerWithSetting<TSetting> :
+        Indexer,
+        IHandle<IndexerSettingUpdatedEvent> where TSetting : IIndexerSetting, new()
+    {
+        protected IndexerWithSetting(IProviderIndexerSetting settingProvider)
+        {
+            Settings = settingProvider.Get<TSetting>(this);
+        }
+
+        public override bool IsConfigured
+        {
+            get { return Settings.IsValid; }
+        }
+
+        protected TSetting Settings { get; private set; }
+
+        public void Handle(IndexerSettingUpdatedEvent message)
+        {
+            if (message.IndexerName.Equals(Name, StringComparison.InvariantCultureIgnoreCase))
+            {
+                Settings = (TSetting)message.IndexerSetting;
+            }
+        }
+    }
+}