Add GPL modules

1 files changed, 108 insertions, 0 deletions

diff --git a/MediaBrowser.Common/Events/EventHelper.cs b/MediaBrowser.Common/Events/EventHelper.cs
new file mode 100644
index 000000000..2bb52f0ae
--- /dev/null
+++ b/MediaBrowser.Common/Events/EventHelper.cs
@@ -0,0 +1,108 @@
+using MediaBrowser.Model.Logging;
+using System;
+using System.Threading.Tasks;
+
+namespace MediaBrowser.Common.Events
+{
+    /// <summary>
+    /// Class EventHelper
+    /// </summary>
+    public static class EventHelper
+    {
+        /// <summary>
+        /// Fires the event.
+        /// </summary>
+        /// <param name="handler">The handler.</param>
+        /// <param name="sender">The sender.</param>
+        /// <param name="args">The <see cref="EventArgs" /> instance containing the event data.</param>
+        /// <param name="logger">The logger.</param>
+        public static void QueueEventIfNotNull(EventHandler handler, object sender, EventArgs args, ILogger logger)
+        {
+            if (handler != null)
+            {
+                Task.Run(() =>
+                {
+                    try
+                    {
+                        handler(sender, args);
+                    }
+                    catch (Exception ex)
+                    {
+                        logger.ErrorException("Error in event handler", ex);
+                    }
+                });
+            }
+        }
+
+        /// <summary>
+        /// Queues the event.
+        /// </summary>
+        /// <typeparam name="T"></typeparam>
+        /// <param name="handler">The handler.</param>
+        /// <param name="sender">The sender.</param>
+        /// <param name="args">The args.</param>
+        /// <param name="logger">The logger.</param>
+        public static void QueueEventIfNotNull<T>(EventHandler<T> handler, object sender, T args, ILogger logger)
+        {
+            if (handler != null)
+            {
+                Task.Run(() =>
+                {
+                    try
+                    {
+                        handler(sender, args);
+                    }
+                    catch (Exception ex)
+                    {
+                        logger.ErrorException("Error in event handler", ex);
+                    }
+                });
+            }
+        }
+
+        /// <summary>
+        /// Fires the event.
+        /// </summary>
+        /// <param name="handler">The handler.</param>
+        /// <param name="sender">The sender.</param>
+        /// <param name="args">The <see cref="EventArgs" /> instance containing the event data.</param>
+        /// <param name="logger">The logger.</param>
+        public static void FireEventIfNotNull(EventHandler handler, object sender, EventArgs args, ILogger logger)
+        {
+            if (handler != null)
+            {
+                try
+                {
+                    handler(sender, args);
+                }
+                catch (Exception ex)
+                {
+                    logger.ErrorException("Error in event handler", ex);
+                }
+            }
+        }
+
+        /// <summary>
+        /// Fires the event.
+        /// </summary>
+        /// <typeparam name="T"></typeparam>
+        /// <param name="handler">The handler.</param>
+        /// <param name="sender">The sender.</param>
+        /// <param name="args">The args.</param>
+        /// <param name="logger">The logger.</param>
+        public static void FireEventIfNotNull<T>(EventHandler<T> handler, object sender, T args, ILogger logger)
+        {
+            if (handler != null)
+            {
+                try
+                {
+                    handler(sender, args);
+                }
+                catch (Exception ex)
+                {
+                    logger.ErrorException("Error in event handler", ex);
+                }
+            }
+        }
+    }
+}