[Internal] SystemTextJsonSerializer: Adds Default STJ Serializer

[kundadebdatta]

Pull Request Template

Description

This PR adds a Default System.Text.JSON Implementation for CosmosLinqSerializer. This default serializer can be used along with the CosmosClientOptions to set the runtime serializer. Please take a look at the example below for usage:

        CosmosClientOptions clientOptions = new CosmosClientOptions()
        {
            Serializer = new CosmosDefaultSystemTextJsonSerializer(
                new System.Text.Json.JsonSerializerOptions())
        };

Note that this is just a default implementation which handles the basic scenarios. Any JsonSerializerOptions passed in here may not going to be reflected in SerializeMemberName().

To handle special cases, please create a custom serializer which inherits from the CosmosDefaultSystemTextJsonSerializer and overrides the SerializeMemberName() method to add any special handling.

Below is an example of a custom serializer, which is inherits the CosmosDefaultSystemTextJsonSerializer to cover the special handling for camel case naming property.

    public class CustomSystemTextJsonSerializer : CosmosDefaultSystemTextJsonSerializer
    {
        /// <summary>
        /// Initializes a new instance of the <see cref="CustomSystemTextJsonSerializer "/> class.
        /// </summary>
        /// <param name="jsonSerializerOptions"></param>
        public CustomSystemTextJsonSerializer (JsonSerializerOptions jsonSerializerOptions)
            : base(jsonSerializerOptions)
        {
        }

        /// <inheritdoc/>
        public override string SerializeMemberName(MemberInfo memberInfo)
        {
            System.Text.Json.Serialization.JsonExtensionDataAttribute jsonExtensionDataAttribute =
                memberInfo.GetCustomAttribute<System.Text.Json.Serialization.JsonExtensionDataAttribute>(true);
            if (jsonExtensionDataAttribute != null)
            {
                return null;
            }

            JsonPropertyNameAttribute jsonPropertyNameAttribute = memberInfo.GetCustomAttribute<JsonPropertyNameAttribute>(true);
            if (!string.IsNullOrEmpty(jsonPropertyNameAttribute?.Name))
            {
                return jsonPropertyNameAttribute.Name;
            }

            return System.Text.Json.JsonNamingPolicy.CamelCase.ConvertName(memberInfo.Name);
        }
    }

Type of change

Please delete options that are not relevant.

• New feature (non-breaking change which adds functionality)

Closing issues

To automatically close an issue: closes #4330

[adityasa]

🕐

[adityasa]

[Arcalise08]

Any update on this PR? It's been a few weeks and this is a much-anticipated change.

[kirankumarkolli]

Any update on this PR? It's been a few weeks and this is a much-anticipated change.

@Arcalise08 due to some reprioritizations this work was paused. We expect it to resume it after 2 weeks.
We will try to opportunistically accelerate its close as soon as possible.

[aavasthy]

👍