Merge pull request #2350 from MediaBrowser/beta

Beta

1 files changed, 138 insertions, 0 deletions

diff --git a/Emby.Common.Implementations/Serialization/XmlSerializer.cs b/Emby.Common.Implementations/Serialization/XmlSerializer.cs
new file mode 100644
index 000000000..3583f998e
--- /dev/null
+++ b/Emby.Common.Implementations/Serialization/XmlSerializer.cs
@@ -0,0 +1,138 @@
+using MediaBrowser.Model.Serialization;
+using System;
+using System.Collections.Concurrent;
+using System.Collections.Generic;
+using System.IO;
+using System.Xml;
+using System.Xml.Serialization;
+using MediaBrowser.Common.IO;
+using MediaBrowser.Model.IO;
+using MediaBrowser.Model.Logging;
+
+namespace Emby.Common.Implementations.Serialization
+{
+    /// <summary>
+    /// Provides a wrapper around third party xml serialization.
+    /// </summary>
+    public class MyXmlSerializer : IXmlSerializer
+    {
+        private readonly IFileSystem _fileSystem;
+        private readonly ILogger _logger;
+
+        public MyXmlSerializer(IFileSystem fileSystem, ILogger logger)
+        {
+            _fileSystem = fileSystem;
+            _logger = logger;
+        }
+
+        // Need to cache these
+        // http://dotnetcodebox.blogspot.com/2013/01/xmlserializer-class-may-result-in.html
+        private readonly Dictionary<string, XmlSerializer> _serializers =
+            new Dictionary<string, XmlSerializer>();
+
+        private XmlSerializer GetSerializer(Type type)
+        {
+            var key = type.FullName;
+            lock (_serializers)
+            {
+                XmlSerializer serializer;
+                if (!_serializers.TryGetValue(key, out serializer))
+                {
+                    serializer = new XmlSerializer(type);
+                    _serializers[key] = serializer;
+                }
+                return serializer;
+            }
+        }
+
+        /// <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)
+        {
+#if NET46
+            using (var writer = new XmlTextWriter(stream, null))            
+            {
+                writer.Formatting = Formatting.Indented;
+                SerializeToWriter(obj, writer);
+            }
+#else
+            using (var writer = XmlWriter.Create(stream))
+            {
+                SerializeToWriter(obj, writer);
+            }
+#endif
+        }
+
+        /// <summary>
+        /// Serializes to file.
+        /// </summary>
+        /// <param name="obj">The obj.</param>
+        /// <param name="file">The file.</param>
+        public void SerializeToFile(object obj, string file)
+        {
+            _logger.Debug("Serializing to file {0}", file);
+            using (var stream = new FileStream(file, FileMode.Create))
+            {
+                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)
+        {
+            _logger.Debug("Deserializing file {0}", file);
+            using (var stream = _fileSystem.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))
+            {
+                return DeserializeFromStream(type, stream);
+            }
+        }
+    }
+}