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158 lines
5 KiB
C#
158 lines
5 KiB
C#
using MediaBrowser.Model.Serialization;
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using ProtoBuf;
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using ProtoBuf.Meta;
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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namespace MediaBrowser.Common.Implementations.Serialization
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{
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/// <summary>
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/// Creates a compiled protobuf serializer based on a set of assemblies
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/// </summary>
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public class ProtobufSerializer : IProtobufSerializer
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{
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/// <summary>
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/// Gets or sets the type model.
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/// </summary>
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/// <value>The type model.</value>
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private TypeModel TypeModel { get; set; }
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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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TypeModel.Serialize(stream, obj);
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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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return TypeModel.Deserialize(stream, null, type);
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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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public T DeserializeFromStream<T>(Stream stream)
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where T : class
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{
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return DeserializeFromStream(stream, typeof(T)) as T;
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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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/// <typeparam name="T"></typeparam>
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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">file</exception>
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public void SerializeToFile<T>(T obj, string file)
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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 = File.Open(file, FileMode.Create))
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{
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SerializeToStream(obj, stream);
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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 = File.OpenRead(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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/// Serializes to bytes.
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="obj">The obj.</param>
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/// <returns>System.Byte[][].</returns>
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/// <exception cref="System.ArgumentNullException">obj</exception>
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public byte[] SerializeToBytes<T>(T obj)
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where T : class
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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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using (var stream = new MemoryStream())
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{
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SerializeToStream(obj, stream);
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return stream.ToArray();
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}
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}
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/// <summary>
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/// Creates the specified assemblies.
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/// </summary>
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/// <returns>DynamicProtobufSerializer.</returns>
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/// <exception cref="System.ArgumentNullException">assemblies</exception>
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public static ProtobufSerializer Create(IEnumerable<Type> types)
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{
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if (types == null)
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{
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throw new ArgumentNullException("types");
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}
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var model = TypeModel.Create();
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var attributeType = typeof(ProtoContractAttribute);
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// Find all ProtoContracts in the current assembly
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foreach (var type in types.Where(t => Attribute.IsDefined(t, attributeType)))
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{
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model.Add(type, true);
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}
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return new ProtobufSerializer { TypeModel = model.Compile() };
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}
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}
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}
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