continue file system rework

MediaBrowser.Server.Startup.Common/MbLinkShortcutHandler.cs

@@ -0,0 +1,53 @@
+using System;
+using System.IO;
+using CommonIO;
+
+namespace MediaBrowser.Server.Startup.Common
+{
+    public class MbLinkShortcutHandler : IShortcutHandler
+    {
+        private readonly IFileSystem _fileSystem;
+
+        public MbLinkShortcutHandler(IFileSystem fileSystem)
+        {
+            _fileSystem = fileSystem;
+        }
+
+        public string Extension
+        {
+            get { return ".mblink"; }
+        }
+
+        public string Resolve(string shortcutPath)
+        {
+            if (string.IsNullOrEmpty(shortcutPath))
+            {
+                throw new ArgumentNullException("filenshortcutPathame");
+            }
+
+            if (string.Equals(Path.GetExtension(shortcutPath), ".mblink", StringComparison.OrdinalIgnoreCase))
+            {
+                var path = _fileSystem.ReadAllText(shortcutPath);
+
+                return _fileSystem.NormalizePath(path);
+            }
+
+            return null;
+        }
+
+        public void Create(string shortcutPath, string targetPath)
+        {
+            if (string.IsNullOrEmpty(shortcutPath))
+            {
+                throw new ArgumentNullException("shortcutPath");
+            }
+
+            if (string.IsNullOrEmpty(targetPath))
+            {
+                throw new ArgumentNullException("targetPath");
+            }
+
+            File.WriteAllText(shortcutPath, targetPath);
+        }
+    }
+}