mirror of
https://github.com/jellyfin/jellyfin.git
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276 lines
8.5 KiB
C#
276 lines
8.5 KiB
C#
using System;
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using System.IO;
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using MediaBrowser.Model.IO;
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using Microsoft.Extensions.Logging;
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using MediaBrowser.Model.Serialization;
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using System.Threading.Tasks;
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namespace Emby.Common.Implementations.Serialization
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{
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/// <summary>
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/// Provides a wrapper around third party json serialization.
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/// </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;
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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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}
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/// <summary>
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/// Serializes to stream.
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/// </summary>
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/// <param name="obj">The obj.</param>
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/// <param name="stream">The stream.</param>
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/// <exception cref="System.ArgumentNullException">obj</exception>
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public void SerializeToStream(object obj, Stream stream)
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{
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if (obj == null)
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{
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throw new ArgumentNullException("obj");
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}
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if (stream == null)
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{
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throw new ArgumentNullException("stream");
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}
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ServiceStack.Text.JsonSerializer.SerializeToStream(obj, obj.GetType(), stream);
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}
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/// <summary>
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/// Serializes to file.
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/// </summary>
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/// <param name="obj">The obj.</param>
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/// <param name="file">The file.</param>
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/// <exception cref="System.ArgumentNullException">obj</exception>
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public void SerializeToFile(object obj, string file)
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{
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if (obj == null)
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{
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throw new ArgumentNullException("obj");
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}
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if (string.IsNullOrEmpty(file))
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{
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throw new ArgumentNullException("file");
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}
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using (Stream stream = _fileSystem.GetFileStream(file, FileOpenMode.Create, FileAccessMode.Write, FileShareMode.Read))
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{
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SerializeToStream(obj, stream);
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}
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}
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private Stream OpenFile(string path)
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{
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//_logger.LogDebug("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>
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/// Deserializes from file.
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/// </summary>
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/// <param name="type">The type.</param>
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/// <param name="file">The file.</param>
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/// <returns>System.Object.</returns>
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/// <exception cref="System.ArgumentNullException">type</exception>
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public object DeserializeFromFile(Type type, string file)
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{
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if (type == null)
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{
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throw new ArgumentNullException("type");
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}
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if (string.IsNullOrEmpty(file))
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{
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throw new ArgumentNullException("file");
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}
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using (Stream stream = OpenFile(file))
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{
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return DeserializeFromStream(stream, type);
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}
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}
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/// <summary>
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/// Deserializes from file.
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="file">The file.</param>
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/// <returns>``0.</returns>
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/// <exception cref="System.ArgumentNullException">file</exception>
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public T DeserializeFromFile<T>(string file)
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where T : class
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{
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if (string.IsNullOrEmpty(file))
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{
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throw new ArgumentNullException("file");
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}
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using (Stream stream = OpenFile(file))
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{
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return DeserializeFromStream<T>(stream);
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}
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}
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/// <summary>
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/// Deserializes from stream.
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="stream">The stream.</param>
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/// <returns>``0.</returns>
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/// <exception cref="System.ArgumentNullException">stream</exception>
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public T DeserializeFromStream<T>(Stream stream)
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{
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if (stream == null)
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{
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throw new ArgumentNullException("stream");
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}
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return ServiceStack.Text.JsonSerializer.DeserializeFromStream<T>(stream);
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}
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public async Task<T> DeserializeFromStreamAsync<T>(Stream stream)
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{
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if (stream == null)
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{
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throw new ArgumentNullException("stream");
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}
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using (var reader = new StreamReader(stream))
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{
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var json = await reader.ReadToEndAsync().ConfigureAwait(false);
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return ServiceStack.Text.JsonSerializer.DeserializeFromString<T>(json);
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}
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}
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/// <summary>
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/// Deserializes from string.
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="text">The text.</param>
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/// <returns>``0.</returns>
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/// <exception cref="System.ArgumentNullException">text</exception>
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public T DeserializeFromString<T>(string text)
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{
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if (string.IsNullOrEmpty(text))
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{
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throw new ArgumentNullException("text");
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}
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return ServiceStack.Text.JsonSerializer.DeserializeFromString<T>(text);
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}
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/// <summary>
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/// Deserializes from stream.
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/// </summary>
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/// <param name="stream">The stream.</param>
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/// <param name="type">The type.</param>
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/// <returns>System.Object.</returns>
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/// <exception cref="System.ArgumentNullException">stream</exception>
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public object DeserializeFromStream(Stream stream, Type type)
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{
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if (stream == null)
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{
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throw new ArgumentNullException("stream");
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}
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if (type == null)
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{
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throw new ArgumentNullException("type");
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}
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return ServiceStack.Text.JsonSerializer.DeserializeFromStream(type, stream);
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}
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public async Task<object> DeserializeFromStreamAsync(Stream stream, Type type)
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{
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if (stream == null)
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{
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throw new ArgumentNullException("stream");
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}
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if (type == null)
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{
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throw new ArgumentNullException("type");
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}
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using (var reader = new StreamReader(stream))
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{
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var json = await reader.ReadToEndAsync().ConfigureAwait(false);
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return ServiceStack.Text.JsonSerializer.DeserializeFromString(json, type);
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}
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}
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/// <summary>
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/// Configures this instance.
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/// </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;
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ServiceStack.Text.JsConfig.IncludeNullValues = false;
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ServiceStack.Text.JsConfig.AlwaysUseUtc = true;
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ServiceStack.Text.JsConfig.AssumeUtc = true;
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ServiceStack.Text.JsConfig<Guid>.SerializeFn = SerializeGuid;
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}
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private string SerializeGuid(Guid guid)
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{
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if (guid.Equals(Guid.Empty))
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{
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return null;
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}
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return guid.ToString("N");
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}
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/// <summary>
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/// Deserializes from string.
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/// </summary>
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/// <param name="json">The json.</param>
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/// <param name="type">The type.</param>
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/// <returns>System.Object.</returns>
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/// <exception cref="System.ArgumentNullException">json</exception>
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public object DeserializeFromString(string json, Type type)
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{
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if (string.IsNullOrEmpty(json))
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{
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throw new ArgumentNullException("json");
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}
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if (type == null)
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{
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throw new ArgumentNullException("type");
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}
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return ServiceStack.Text.JsonSerializer.DeserializeFromString(json, type);
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}
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/// <summary>
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/// Serializes to string.
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/// </summary>
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/// <param name="obj">The obj.</param>
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/// <returns>System.String.</returns>
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/// <exception cref="System.ArgumentNullException">obj</exception>
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public string SerializeToString(object obj)
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{
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if (obj == null)
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{
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throw new ArgumentNullException("obj");
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}
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return ServiceStack.Text.JsonSerializer.SerializeToString(obj, obj.GetType());
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}
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}
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}
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