jellyfin/MediaBrowser.Common.Implementations/Serialization/JsonSerializer.cs

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using MediaBrowser.Model.Serialization;
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using System;
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using System.IO;
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using MediaBrowser.Common.IO;
using MediaBrowser.Model.IO;
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using MediaBrowser.Model.Logging;
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namespace MediaBrowser.Common.Implementations.Serialization
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{
/// <summary>
/// Provides a wrapper around third party json serialization.
/// </summary>
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public class JsonSerializer : IJsonSerializer
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{
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private readonly IFileSystem _fileSystem;
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private readonly ILogger _logger;
public JsonSerializer(IFileSystem fileSystem, ILogger logger)
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{
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_fileSystem = fileSystem;
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_logger = logger;
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Configure();
}
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/// <summary>
/// Serializes to stream.
/// </summary>
/// <param name="obj">The obj.</param>
/// <param name="stream">The stream.</param>
/// <exception cref="System.ArgumentNullException">obj</exception>
public void SerializeToStream(object obj, Stream stream)
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{
if (obj == null)
{
throw new ArgumentNullException("obj");
}
if (stream == null)
{
throw new ArgumentNullException("stream");
}
ServiceStack.Text.JsonSerializer.SerializeToStream(obj, obj.GetType(), stream);
}
/// <summary>
/// Serializes to file.
/// </summary>
/// <param name="obj">The obj.</param>
/// <param name="file">The file.</param>
/// <exception cref="System.ArgumentNullException">obj</exception>
public void SerializeToFile(object obj, string file)
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{
if (obj == null)
{
throw new ArgumentNullException("obj");
}
if (string.IsNullOrEmpty(file))
{
throw new ArgumentNullException("file");
}
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using (Stream stream = _fileSystem.GetFileStream(file, FileOpenMode.Create, FileAccessMode.Write, FileShareMode.Read))
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{
SerializeToStream(obj, stream);
}
}
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private Stream OpenFile(string path)
{
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_logger.Debug("Deserializing file {0}", path);
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return new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.Read, 131072);
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}
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/// <summary>
/// Deserializes from file.
/// </summary>
/// <param name="type">The type.</param>
/// <param name="file">The file.</param>
/// <returns>System.Object.</returns>
/// <exception cref="System.ArgumentNullException">type</exception>
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public object DeserializeFromFile(Type type, string file)
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{
if (type == null)
{
throw new ArgumentNullException("type");
}
if (string.IsNullOrEmpty(file))
{
throw new ArgumentNullException("file");
}
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using (Stream stream = OpenFile(file))
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{
return DeserializeFromStream(stream, type);
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}
}
/// <summary>
/// Deserializes from file.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="file">The file.</param>
/// <returns>``0.</returns>
/// <exception cref="System.ArgumentNullException">file</exception>
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public T DeserializeFromFile<T>(string file)
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where T : class
{
if (string.IsNullOrEmpty(file))
{
throw new ArgumentNullException("file");
}
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using (Stream stream = OpenFile(file))
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{
return DeserializeFromStream<T>(stream);
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}
}
/// <summary>
/// Deserializes from stream.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="stream">The stream.</param>
/// <returns>``0.</returns>
/// <exception cref="System.ArgumentNullException">stream</exception>
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public T DeserializeFromStream<T>(Stream stream)
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{
if (stream == null)
{
throw new ArgumentNullException("stream");
}
return ServiceStack.Text.JsonSerializer.DeserializeFromStream<T>(stream);
}
/// <summary>
/// Deserializes from string.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="text">The text.</param>
/// <returns>``0.</returns>
/// <exception cref="System.ArgumentNullException">text</exception>
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public T DeserializeFromString<T>(string text)
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{
if (string.IsNullOrEmpty(text))
{
throw new ArgumentNullException("text");
}
return ServiceStack.Text.JsonSerializer.DeserializeFromString<T>(text);
}
/// <summary>
/// Deserializes from stream.
/// </summary>
/// <param name="stream">The stream.</param>
/// <param name="type">The type.</param>
/// <returns>System.Object.</returns>
/// <exception cref="System.ArgumentNullException">stream</exception>
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public object DeserializeFromStream(Stream stream, Type type)
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{
if (stream == null)
{
throw new ArgumentNullException("stream");
}
if (type == null)
{
throw new ArgumentNullException("type");
}
return ServiceStack.Text.JsonSerializer.DeserializeFromStream(type, stream);
}
/// <summary>
/// Configures this instance.
/// </summary>
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private void Configure()
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{
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ServiceStack.Text.JsConfig.DateHandler = ServiceStack.Text.DateHandler.ISO8601;
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ServiceStack.Text.JsConfig.ExcludeTypeInfo = true;
ServiceStack.Text.JsConfig.IncludeNullValues = false;
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ServiceStack.Text.JsConfig.AlwaysUseUtc = true;
ServiceStack.Text.JsConfig.AssumeUtc = true;
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}
/// <summary>
/// Deserializes from string.
/// </summary>
/// <param name="json">The json.</param>
/// <param name="type">The type.</param>
/// <returns>System.Object.</returns>
/// <exception cref="System.ArgumentNullException">json</exception>
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public object DeserializeFromString(string json, Type type)
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{
if (string.IsNullOrEmpty(json))
{
throw new ArgumentNullException("json");
}
if (type == null)
{
throw new ArgumentNullException("type");
}
return ServiceStack.Text.JsonSerializer.DeserializeFromString(json, type);
}
/// <summary>
/// Serializes to string.
/// </summary>
/// <param name="obj">The obj.</param>
/// <returns>System.String.</returns>
/// <exception cref="System.ArgumentNullException">obj</exception>
public string SerializeToString(object obj)
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{
if (obj == null)
{
throw new ArgumentNullException("obj");
}
return ServiceStack.Text.JsonSerializer.SerializeToString(obj, obj.GetType());
}
}
}