1 files changed, 69 insertions, 0 deletions
diff --git a/lib/VNLib.Data.Caching/src/ReusableJsonWriter.cs b/lib/VNLib.Data.Caching/src/ReusableJsonWriter.cs
new file mode 100644
index 0000000..c763f91
--- /dev/null
+++ b/lib/VNLib.Data.Caching/src/ReusableJsonWriter.cs
@@ -0,0 +1,69 @@
+/*
+* Copyright (c) 2022 Vaughn Nugent
+* 
+* Library: VNLib
+* Package: VNLib.Data.Caching
+* File: ReusableJsonWriter.cs 
+*
+* ReusableJsonWriter.cs is part of VNLib.Data.Caching which is part of the larger 
+* VNLib collection of libraries and utilities.
+*
+* VNLib.Data.Caching is free software: you can redistribute it and/or modify 
+* it under the terms of the GNU Affero General Public License as 
+* published by the Free Software Foundation, either version 3 of the
+* License, or (at your option) any later version.
+*
+* VNLib.Data.Caching is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+* GNU Affero General Public License for more details.
+*
+* You should have received a copy of the GNU Affero General Public License
+* along with this program.  If not, see https://www.gnu.org/licenses/.
+*/
+
+using System.IO;
+using System.Buffers;
+using System.Text.Json;
+
+using VNLib.Utils;
+
+namespace VNLib.Data.Caching
+{
+    internal sealed class ReusableJsonWriter : VnDisposeable
+    {
+        private readonly Utf8JsonWriter _writer;
+
+        public ReusableJsonWriter()
+        {
+            _writer = new(Stream.Null);
+        }
+
+        /// <summary>
+        /// Serializes the message and writes the serialzied data to the buffer writer
+        /// </summary>
+        /// <typeparam name="T"></typeparam>
+        /// <param name="writer">The buffer writer to store data at</param>
+        /// <param name="value">The object to serialize</param>
+        /// <param name="options">Optional - serializer options</param>
+        public void Serialize<T>(IBufferWriter<byte> writer, T value, JsonSerializerOptions? options = null)
+        {
+            //Init the writer with the new buffer writer
+            _writer.Reset(writer);
+            try
+            {
+                //Serialize message
+                JsonSerializer.Serialize(_writer, value, options);
+                //Flush writer to underlying buffer
+                _writer.Flush();
+            }
+            finally
+            {
+                //Unlink the writer
+                _writer.Reset(Stream.Null);
+            }
+        }
+
+        protected override void Free() => _writer.Dispose();
+    }
+}