More uninstaller/installer incrementals

Gonna need separate installers for server and mbt due to CO limitations

1 files changed, 23 insertions, 0 deletions

diff --git a/MediaBrowser.Installer/Code/ModelExtensions.cs b/MediaBrowser.Installer/Code/ModelExtensions.cs
index 5a3051164..66e51ec11 100644
--- a/MediaBrowser.Installer/Code/ModelExtensions.cs
+++ b/MediaBrowser.Installer/Code/ModelExtensions.cs
@@ -1,4 +1,6 @@
 
+using System.Collections.Generic;
+
 namespace MediaBrowser.Installer.Code
 {
     /// <summary>
@@ -16,5 +18,26 @@ namespace MediaBrowser.Installer.Code
         {
             return string.IsNullOrEmpty(str) ? def : str;
         }
+
+        /// <summary>
+        /// Helper method for Dictionaries since they throw on not-found keys
+        /// </summary>
+        /// <typeparam name="T"></typeparam>
+        /// <typeparam name="U"></typeparam>
+        /// <param name="dictionary">The dictionary.</param>
+        /// <param name="key">The key.</param>
+        /// <param name="defaultValue">The default value.</param>
+        /// <returns>``1.</returns>
+        public static U GetValueOrDefault<T, U>(this Dictionary<T, U> dictionary, T key, U defaultValue)
+        {
+            U val;
+            if (!dictionary.TryGetValue(key, out val))
+            {
+                val = defaultValue;
+            }
+            return val;
+
+        }
+
     }
 }