HandDriverUPM/Runtime/TouchSocket/Core/Converter/StringConverter.cs

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using System;

namespace TouchSocket.Core
{
    /// <summary>
    /// String类型数据转换器
    /// </summary>
    public class StringConverter : TouchSocketConverter<string>
    {
        /// <summary>
        /// 构造函数
        /// </summary>
        public StringConverter()
        {
            Add(new StringToPrimitiveConverter());
            Add(new JsonStringToClassConverter());
        }
    }

    /// <summary>
    /// String值转换为基础类型。
    /// </summary>
    public class StringToPrimitiveConverter : IConverter<string>
    {
        /// <summary>
        /// <inheritdoc/>
        /// </summary>
        public int Order { get; set; }

        /// <summary>
        /// <inheritdoc/>
        /// </summary>
        /// <param name="source"></param>
        /// <param name="targetType"></param>
        /// <param name="target"></param>
        /// <returns></returns>
        public bool TryConvertFrom(string source, Type targetType, out object target)
        {
            if (targetType.IsPrimitive || targetType == TouchSocketCoreUtility.stringType)
            {
                return StringExtension.TryParseToType(source, targetType, out target);
            }
            target = default;
            return false;
        }

        /// <summary>
        /// <inheritdoc/>
        /// </summary>
        /// <param name="target"></param>
        /// <param name="source"></param>
        /// <returns></returns>
        public bool TryConvertTo(object target, out string source)
        {
            if (target != null)
            {
                Type type = target.GetType();
                if (type.IsPrimitive || type == TouchSocketCoreUtility.stringType)
                {
                    source = target.ToString();
                    return true;
                }
            }

            source = null;
            return false;
        }
    }

    /// <summary>
    /// Json字符串转到对应类
    /// </summary>
    public class JsonStringToClassConverter : IConverter<string>
    {
        /// <summary>
        /// <inheritdoc/>
        /// </summary>
        public int Order { get; set; }

        /// <summary>
        /// <inheritdoc/>
        /// </summary>
        /// <param name="source"></param>
        /// <param name="targetType"></param>
        /// <param name="target"></param>
        /// <returns></returns>
        public bool TryConvertFrom(string source, Type targetType, out object target)
        {
            try
            {
                target = source.FromJson(targetType);
                return true;
            }
            catch
            {
                target = default;
                return false;
            }
        }

        /// <summary>
        /// <inheritdoc/>
        /// </summary>
        /// <param name="target"></param>
        /// <param name="source"></param>
        /// <returns></returns>
        public bool TryConvertTo(object target, out string source)
        {
            try
            {
                source = target.ToJson();
                return true;
            }
            catch (Exception)
            {
                source = null;
                return false;
            }
        }
    }
}