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/*
* 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();
}
}
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