abp/framework/src/Volo.Abp.Json.SystemTextJson/Volo/Abp/Json/SystemTextJson/AbpSystemTextJsonSerializer.cs

using System;
using System.Collections.Concurrent;
using System.Text.Json;
using Microsoft.Extensions.Options;
using Volo.Abp.DependencyInjection;

namespace Volo.Abp.Json.SystemTextJson;

public class AbpSystemTextJsonSerializer : IJsonSerializer, ITransientDependency
{
    protected AbpSystemTextJsonSerializerOptions Options { get; }

    public AbpSystemTextJsonSerializer(IOptions<AbpSystemTextJsonSerializerOptions> options)
    {
        Options = options.Value;
    }

    public string Serialize(object obj, bool camelCase = true, bool indented = false)
    {
        return JsonSerializer.Serialize(obj, CreateJsonSerializerOptions(camelCase, indented));
    }

    public T Deserialize<T>(string jsonString, bool camelCase = true)
    {
        return JsonSerializer.Deserialize<T>(jsonString, CreateJsonSerializerOptions(camelCase))!;
    }

    public object Deserialize(Type type, string jsonString, bool camelCase = true)
    {
        return JsonSerializer.Deserialize(jsonString, type, CreateJsonSerializerOptions(camelCase))!;
    }

    private static readonly ConcurrentDictionary<object, JsonSerializerOptions> JsonSerializerOptionsCache =
        new ConcurrentDictionary<object, JsonSerializerOptions>();

    protected virtual JsonSerializerOptions CreateJsonSerializerOptions(bool camelCase = true, bool indented = false)
    {
        return JsonSerializerOptionsCache.GetOrAdd(new
        {
            camelCase,
            indented,
            Options.JsonSerializerOptions
        }, _ => new JsonSerializerOptions(Options.JsonSerializerOptions)
        {
            PropertyNamingPolicy = camelCase ? JsonNamingPolicy.CamelCase : null,
            WriteIndented = indented
        });
    }
}