Added job for updating XEM mappings

XEM mappings will also be updated when a new series is imported

NzbDrone.Core/Jobs/XemUpdateJob.cs

@@ -0,0 +1,52 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using NLog;
+using Ninject;
+using NzbDrone.Core.Helpers;
+using NzbDrone.Core.Model.Notification;
+using NzbDrone.Core.Providers;
+using NzbDrone.Core.Repository;
+
+namespace NzbDrone.Core.Jobs
+{
+    public class XemUpdateJob : IJob
+    {
+        private readonly XemProvider _xemProvider;
+
+        private static readonly Logger _logger = LogManager.GetCurrentClassLogger();
+
+        [Inject]
+        public XemUpdateJob(XemProvider xemProvider)
+        {
+            _xemProvider = xemProvider;
+        }
+
+        public XemUpdateJob()
+        {
+
+        }
+
+        public string Name
+        {
+            get { return "XEM Update"; }
+        }
+
+        public TimeSpan DefaultInterval
+        {
+            get { return TimeSpan.FromHours(12); }
+        }
+
+        public virtual void Start(ProgressNotification notification, int targetId, int secondaryTargetId)
+        {
+            if (targetId == 0)
+            {
+                _logger.Trace("Starting XEM Update for all series");
+                _xemProvider.UpdateMappings();
+            }
+            _logger.Trace("Starting XEM Update for series: {0}", targetId);
+            _xemProvider.UpdateMappings(targetId);
+            _logger.Trace("XEM Update complete");
+        }
+    }
+}