added xspf parser

moved files to better namespaces
added example playlistfiles
codereformat

Tv7Playlist.Core/Parsers/Xspf/XspfParser.cs

@@ -0,0 +1,45 @@
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Xml;
+using System.Xml.Schema;
+using System.Xml.Serialization;
+
+namespace Tv7Playlist.Core.Parsers.Xspf
+{
+    public class XspfParser : IPlaylistParser
+    {
+        public Task<IReadOnlyCollection<ParsedTrack>> ParseFromStream(Stream stream)
+        {
+            var deserializedList = DeserializePlaylist(stream);
+
+            var tracks = deserializedList.TrackList.Select(t => new ParsedTrack(t.Extension.Id, t.Title, t.Location))
+                .ToList();
+
+            return Task.FromResult((IReadOnlyCollection<ParsedTrack>) tracks);
+        }
+
+        private static Playlist DeserializePlaylist(Stream stream)
+        {
+            var serializer = new XmlSerializer(typeof(Playlist));
+            var xmlReaderSettings = GetXmlReaderSettings();
+
+            using (var reader = XmlReader.Create(stream, xmlReaderSettings))
+            {
+                var deserializedList = (Playlist) serializer.Deserialize(reader);
+                return deserializedList;
+            }
+        }
+
+        private static XmlReaderSettings GetXmlReaderSettings()
+        {
+            var xmlReaderSettings = new XmlReaderSettings
+            {
+                IgnoreProcessingInstructions = true,
+                ValidationFlags = XmlSchemaValidationFlags.None
+            };
+            return xmlReaderSettings;
+        }
+    }
+}