Need help on deserialization

[AlexCastroAlex]

Hello all ,

I need help on deserialization of a yaml file with properties like these :

paths:
  cam1hd:
    record: 'yes'
    recordPath: \\192.168.10.32\recordings\%path\%Y-%m-%d_%H-%M-%S-%f
    recordFormat: fmp4
    recordPartDuration: 100ms
    recordSegmentDuration: 3m
    recordDeleteAfter: 30m
    source: 'rtsp://admin:[email protected]/Streaming/Channels/1'
  cam2hd:
    source: 'rtsp://admin:[email protected]/main'

The representation of the C# entity is :

  public partial class Paths
  {
      public Dictionary<string, CamVt> camVt { get; set; }

      [YamlMember(Alias = "all_others", ApplyNamingConventions = false)]
      public object AllOthers { get; set; }
  }

  public partial class CamVt
  {
      [YamlMember(Alias = "source", ApplyNamingConventions = false)]
      public string Source { get; set; }
  }
  public partial class Cam1Remote:CamVt
  {
      [YamlMember(Alias = "record", ApplyNamingConventions = false)]
      public string Record { get; set; }

      [YamlMember(Alias = "recordPath", ApplyNamingConventions = false)]
      public string RecordPath { get; set; }

      [YamlMember(Alias = "recordFormat", ApplyNamingConventions = false)]
      public string RecordFormat { get; set; }

      [YamlMember(Alias = "recordPartDuration", ApplyNamingConventions = false)]
      public string RecordPartDuration { get; set; }

      [YamlMember(Alias = "recordSegmentDuration", ApplyNamingConventions = false)]
      public string RecordSegmentDuration { get; set; }

      [YamlMember(Alias = "recordDeleteAfter", ApplyNamingConventions = false)]
      public string RecordDeleteAfter { get; set; }
  }

The idea is that cam1hd could be whatever name and has properties below, that's why i created a Dictionary<string, CamVt>.
And the camVt entity could be inherited to be a Dictionary<string, Cam1Remote>.

I was not able to deserialize this file because of this specificity.

Anybody could help please ? 🙏

Regards

[EdwardCooke]

You'll want to use a type discriminator to determine what type of path to resolve to. Here's an example:

using YamlDotNet.Serialization;
using YamlDotNet.Serialization.BufferedDeserialization;

var yaml = @"paths:
  cam1hd:
    record: 'yes'
    recordPath: \\192.168.10.32\recordings\%path\%Y-%m-%d_%H-%M-%S-%f
    recordFormat: fmp4
    recordPartDuration: 100ms
    recordSegmentDuration: 3m
    recordDeleteAfter: 30m
    source: 'rtsp://admin:[email protected]/Streaming/Channels/1'
  cam2hd:
    source: 'rtsp://admin:[email protected]/main'";

var deserializer = new DeserializerBuilder()
    .WithTypeDiscriminatingNodeDeserializer((options) =>
    {
        var descrimators = new Dictionary<string, Type>();
        descrimators.Add("record", typeof(Cam1Remote));
        options.AddUniqueKeyTypeDiscriminator<CamVt>(descrimators);
    }).Build();

var deserialized = deserializer.Deserialize<Root>(yaml);
Console.WriteLine(string.Join(", ", deserialized.Paths.Select(p => p.Key + "-" + p.Value.GetType().ToString())));

public class Root
{
    [YamlMember(Alias = "paths", ApplyNamingConventions = false)]
    public Paths Paths { get; set; }
}
public partial class Paths : Dictionary<string, CamVt>
{

    [YamlMember(Alias = "all_others", ApplyNamingConventions = false)]
    public object AllOthers { get; set; }
}

public partial class CamVt
{
    [YamlMember(Alias = "source", ApplyNamingConventions = false)]
    public string Source { get; set; }
}
public partial class Cam1Remote : CamVt
{
    [YamlMember(Alias = "record", ApplyNamingConventions = false)]
    public string Record { get; set; }

    [YamlMember(Alias = "recordPath", ApplyNamingConventions = false)]
    public string RecordPath { get; set; }

    [YamlMember(Alias = "recordFormat", ApplyNamingConventions = false)]
    public string RecordFormat { get; set; }

    [YamlMember(Alias = "recordPartDuration", ApplyNamingConventions = false)]
    public string RecordPartDuration { get; set; }

    [YamlMember(Alias = "recordSegmentDuration", ApplyNamingConventions = false)]
    public string RecordSegmentDuration { get; set; }

    [YamlMember(Alias = "recordDeleteAfter", ApplyNamingConventions = false)]
    public string RecordDeleteAfter { get; set; }
}

Results in

cam1hd-Cam1Remote, cam2hd-CamVt

[AlexCastroAlex]

Thanks a lot !! it works like a charm !! 😍

Keep up the good work your package is really nice 😊

Regards