1 files changed, 109 insertions, 0 deletions
diff --git a/Emby.Server.Implementations/Serialization/MyXmlSerializer.cs b/Emby.Server.Implementations/Serialization/MyXmlSerializer.cs
new file mode 100644
index 000000000..059211a0b
--- /dev/null
+++ b/Emby.Server.Implementations/Serialization/MyXmlSerializer.cs
@@ -0,0 +1,109 @@
+using System;
+using System.Collections.Concurrent;
+using System.IO;
+using System.Xml;
+using System.Xml.Serialization;
+using MediaBrowser.Model.IO;
+using MediaBrowser.Model.Serialization;
+
+namespace Emby.Server.Implementations.Serialization
+{
+    /// <summary>
+    /// Provides a wrapper around third party xml serialization.
+    /// </summary>
+    public class MyXmlSerializer : IXmlSerializer
+    {
+        // Need to cache these
+        // http://dotnetcodebox.blogspot.com/2013/01/xmlserializer-class-may-result-in.html
+        private static readonly ConcurrentDictionary<string, XmlSerializer> _serializers =
+            new ConcurrentDictionary<string, XmlSerializer>();
+
+        private static XmlSerializer GetSerializer(Type type)
+            => _serializers.GetOrAdd(
+                type.FullName ?? throw new ArgumentException($"Invalid type {type}."),
+                (_, t) => new XmlSerializer(t),
+                type);
+
+        /// <summary>
+        /// Serializes to writer.
+        /// </summary>
+        /// <param name="obj">The obj.</param>
+        /// <param name="writer">The writer.</param>
+        private void SerializeToWriter(object obj, XmlWriter writer)
+        {
+            var netSerializer = GetSerializer(obj.GetType());
+            netSerializer.Serialize(writer, obj);
+        }
+
+        /// <summary>
+        /// Deserializes from stream.
+        /// </summary>
+        /// <param name="type">The type.</param>
+        /// <param name="stream">The stream.</param>
+        /// <returns>System.Object.</returns>
+        public object? DeserializeFromStream(Type type, Stream stream)
+        {
+            using (var reader = XmlReader.Create(stream))
+            {
+                var netSerializer = GetSerializer(type);
+                return netSerializer.Deserialize(reader);
+            }
+        }
+
+        /// <summary>
+        /// Serializes to stream.
+        /// </summary>
+        /// <param name="obj">The obj.</param>
+        /// <param name="stream">The stream.</param>
+        public void SerializeToStream(object obj, Stream stream)
+        {
+            using (var writer = new StreamWriter(stream, null, IODefaults.StreamWriterBufferSize, true))
+            using (var textWriter = new XmlTextWriter(writer))
+            {
+                textWriter.Formatting = Formatting.Indented;
+                SerializeToWriter(obj, textWriter);
+            }
+        }
+
+        /// <summary>
+        /// Serializes to file.
+        /// </summary>
+        /// <param name="obj">The obj.</param>
+        /// <param name="file">The file.</param>
+        public void SerializeToFile(object obj, string file)
+        {
+            using (var stream = new FileStream(file, FileMode.Create, FileAccess.Write))
+            {
+                SerializeToStream(obj, stream);
+            }
+        }
+
+        /// <summary>
+        /// Deserializes from file.
+        /// </summary>
+        /// <param name="type">The type.</param>
+        /// <param name="file">The file.</param>
+        /// <returns>System.Object.</returns>
+        public object? DeserializeFromFile(Type type, string file)
+        {
+            using (var stream = File.OpenRead(file))
+            {
+                return DeserializeFromStream(type, stream);
+            }
+        }
+
+        /// <summary>
+        /// Deserializes from bytes.
+        /// </summary>
+        /// <param name="type">The type.</param>
+        /// <param name="buffer">The buffer.</param>
+        /// <returns>System.Object.</returns>
+        public object? DeserializeFromBytes(Type type, byte[] buffer)
+        {
+            using (var stream = new MemoryStream(buffer, 0, buffer.Length, false, true))
+            {
+                return DeserializeFromStream(type, stream);
+            }
+        }
+    }
+}