VberAdmin_V4/SourceCode/Zero/VberYue.Zero/Tools/ReflectionHelper.cs

using Abp.Logging;

using System.Reflection;

namespace VberZero.Tools;

public static class ReflectionHelper
{
    public static TOut? GetFiledValue<TOut>(this object obj, string filedName)
    {
        try
        {
            var value = obj.GetType().GetProperty(filedName)?.GetValue(obj, null);
            return (TOut)value!;
        }
        catch (Exception e)
        {
            LogHelper.LogException(e);
            return default(TOut);
        }
    }

    public static TOut SetFiledValue<TOut, TFiled>(this TOut obj, string filedName, TFiled value)
    {
        try
        {
            var filed = obj?.GetType().GetProperty(filedName);
            if (filed != null)
            {
                filed.SetValue(obj, value);
            }
        }
        catch (Exception e)
        {
            LogHelper.LogException(e);
        }
        return obj;
    }

    public static TAttribute? GetSingleAttribute<TAttribute>(this Type type, TAttribute? defaultValue = default(TAttribute), bool inherit = true)
        where TAttribute : Attribute
    {
        return type.GetCustomAttributes(inherit).OfType<TAttribute>().FirstOrDefault()
               ?? type.ReflectedType?.GetTypeInfo().GetCustomAttributes(inherit).OfType<TAttribute>().FirstOrDefault()
               ?? defaultValue;
    }

    public static TAttribute? GetMemberSingleAttribute<TAttribute>(this MemberInfo memberInfo, TAttribute? defaultValue = default(TAttribute), bool inherit = true)
        where TAttribute : Attribute
    {
        //Get attribute on the member
        if (memberInfo.IsDefined(typeof(TAttribute), inherit))
        {
            return memberInfo.GetCustomAttributes(typeof(TAttribute), inherit).Cast<TAttribute>().First();
        }

        return defaultValue;
    }

    public static Type? TypenFromAssembly(this Assembly assembly, string typeName)
    {
        Type?[] typeArray = assembly.GetTypes();
        foreach (var type in typeArray)
        {
            if (type != null && ((type.FullName != null && type.FullName.Equals(typeName)) || type.Name.Equals(typeName)))
            {
                return type;
            }
        }

        return null;
    }

    /// <summary>
    /// Checks whether <paramref name="givenType"/> implements/inherits <paramref name="genericType"/>.
    /// </summary>
    /// <param name="givenType">Type to check</param>
    /// <param name="genericType">Generic type</param>
    public static bool IsAssignableToGenericType(Type givenType, Type genericType)
    {
        var givenTypeInfo = givenType.GetTypeInfo();

        if (givenTypeInfo.IsGenericType && givenType.GetGenericTypeDefinition() == genericType)
        {
            return true;
        }

        foreach (var interfaceType in givenType.GetInterfaces())
        {
            if (interfaceType.GetTypeInfo().IsGenericType && interfaceType.GetGenericTypeDefinition() == genericType)
            {
                return true;
            }
        }

        if (givenTypeInfo.BaseType == null)
        {
            return false;
        }

        return IsAssignableToGenericType(givenTypeInfo.BaseType, genericType);
    }

    /// <summary>
    /// Gets a list of attributes defined for a class member and it's declaring type including inherited attributes.
    /// </summary>
    /// <param name="inherit">Inherit attribute from base classes</param>
    /// <param name="memberInfo">MemberInfo</param>
    public static List<object> GetAttributesOfMemberAndDeclaringType(MemberInfo memberInfo, bool inherit = true)
    {
        var attributeList = new List<object>();

        attributeList.AddRange(memberInfo.GetCustomAttributes(inherit));

        if (memberInfo.DeclaringType != null)
        {
            attributeList.AddRange(memberInfo.DeclaringType.GetTypeInfo().GetCustomAttributes(inherit));
        }

        return attributeList;
    }

    /// <summary>
    /// Gets a list of attributes defined for a class member and type including inherited attributes.
    /// </summary>
    /// <param name="memberInfo">MemberInfo</param>
    /// <param name="type">Type</param>
    /// <param name="inherit">Inherit attribute from base classes</param>
    public static List<object> GetAttributesOfMemberAndType(MemberInfo memberInfo, Type type, bool inherit = true)
    {
        var attributeList = new List<object>();
        attributeList.AddRange(memberInfo.GetCustomAttributes(inherit));
        attributeList.AddRange(type.GetTypeInfo().GetCustomAttributes(inherit));
        return attributeList;
    }

    /// <summary>
    /// Gets a list of attributes defined for a class member and it's declaring type including inherited attributes.
    /// </summary>
    /// <typeparam name="TAttribute">Type of the attribute</typeparam>
    /// <param name="memberInfo">MemberInfo</param>
    /// <param name="inherit">Inherit attribute from base classes</param>
    public static List<TAttribute> GetAttributesOfMemberAndDeclaringType<TAttribute>(MemberInfo memberInfo, bool inherit = true)
        where TAttribute : Attribute
    {
        var attributeList = new List<TAttribute>();

        if (memberInfo.IsDefined(typeof(TAttribute), inherit))
        {
            attributeList.AddRange(memberInfo.GetCustomAttributes(typeof(TAttribute), inherit).Cast<TAttribute>());
        }

        if (memberInfo.DeclaringType != null && memberInfo.DeclaringType.GetTypeInfo().IsDefined(typeof(TAttribute), inherit))
        {
            attributeList.AddRange(memberInfo.DeclaringType.GetTypeInfo().GetCustomAttributes(typeof(TAttribute), inherit).Cast<TAttribute>());
        }

        return attributeList;
    }

    /// <summary>
    /// Gets a list of attributes defined for a class member and type including inherited attributes.
    /// </summary>
    /// <typeparam name="TAttribute">Type of the attribute</typeparam>
    /// <param name="memberInfo">MemberInfo</param>
    /// <param name="type">Type</param>
    /// <param name="inherit">Inherit attribute from base classes</param>
    public static List<TAttribute> GetAttributesOfMemberAndType<TAttribute>(MemberInfo memberInfo, Type type, bool inherit = true)
        where TAttribute : Attribute
    {
        var attributeList = new List<TAttribute>();

        if (memberInfo.IsDefined(typeof(TAttribute), inherit))
        {
            attributeList.AddRange(memberInfo.GetCustomAttributes(typeof(TAttribute), inherit).Cast<TAttribute>());
        }

        if (type.GetTypeInfo().IsDefined(typeof(TAttribute), inherit))
        {
            attributeList.AddRange(type.GetTypeInfo().GetCustomAttributes(typeof(TAttribute), inherit).Cast<TAttribute>());
        }

        return attributeList;
    }

    /// <summary>
    /// Tries to gets an of attribute defined for a class member and it's declaring type including inherited attributes.
    /// Returns default value if it's not declared at all.
    /// </summary>
    /// <typeparam name="TAttribute">Type of the attribute</typeparam>
    /// <param name="memberInfo">MemberInfo</param>
    /// <param name="defaultValue">Default value (null as default)</param>
    /// <param name="inherit">Inherit attribute from base classes</param>
    public static TAttribute? GetSingleAttributeOfMemberOrDeclaringTypeOrDefault<TAttribute>(MemberInfo memberInfo, TAttribute? defaultValue = default(TAttribute), bool inherit = true)
        where TAttribute : class
    {
        return memberInfo.GetCustomAttributes(true).OfType<TAttribute>().FirstOrDefault()
               ?? memberInfo.ReflectedType?.GetTypeInfo().GetCustomAttributes(true).OfType<TAttribute>().FirstOrDefault()
               ?? defaultValue;
    }

    /// <summary>
    /// Tries to gets an of attribute defined for a class member and it's declaring type including inherited attributes.
    /// Returns default value if it's not declared at all.
    /// </summary>
    /// <typeparam name="TAttribute">Type of the attribute</typeparam>
    /// <param name="memberInfo">MemberInfo</param>
    /// <param name="defaultValue">Default value (null as default)</param>
    /// <param name="inherit">Inherit attribute from base classes</param>
    public static TAttribute? GetSingleAttributeOrDefault<TAttribute>(MemberInfo memberInfo, TAttribute? defaultValue = default(TAttribute), bool inherit = true)
        where TAttribute : Attribute
    {
        //Get attribute on the member
        if (memberInfo.IsDefined(typeof(TAttribute), inherit))
        {
            return memberInfo.GetCustomAttributes(typeof(TAttribute), inherit).Cast<TAttribute>().First();
        }

        return defaultValue;
    }

    /// <summary>
    /// Gets a property by it's full path from given object
    /// </summary>
    /// <param name="obj">Object to get value from</param>
    /// <param name="objectType">Type of given object</param>
    /// <param name="propertyPath">Full path of property</param>
    /// <returns></returns>
    public static object GetPropertyByPath(object obj, Type objectType, string propertyPath)
    {
        var property = obj;
        var currentType = objectType;
        var objectPath = currentType.FullName;
        var absolutePropertyPath = propertyPath;
        if (absolutePropertyPath.StartsWith(objectPath ?? throw new InvalidOperationException()))
        {
            absolutePropertyPath = absolutePropertyPath.Replace(objectPath + ".", "");
        }

        foreach (var propertyName in absolutePropertyPath.Split('.'))
        {
            property = currentType.GetProperty(propertyName);
            currentType = ((PropertyInfo)property!).PropertyType;
        }

        return property;
    }

    /// <summary>
    /// Gets value of a property by it's full path from given object
    /// </summary>
    /// <param name="obj">Object to get value from</param>
    /// <param name="objectType">Type of given object</param>
    /// <param name="propertyPath">Full path of property</param>
    /// <returns></returns>
    public static object? GetValueByPath(object obj, Type objectType, string propertyPath)
    {
        var value = obj;
        var currentType = objectType;
        var objectPath = currentType.FullName;
        var absolutePropertyPath = propertyPath;
        if (absolutePropertyPath.StartsWith(objectPath ?? throw new InvalidOperationException()))
        {
            absolutePropertyPath = absolutePropertyPath.Replace(objectPath + ".", "");
        }

        foreach (var propertyName in absolutePropertyPath.Split('.'))
        {
            var property = currentType?.GetProperty(propertyName);
            value = property?.GetValue(value, null);
            currentType = property?.PropertyType;
        }

        return value;
    }

    /// <summary>
    /// Sets value of a property by it's full path on given object
    /// </summary>
    /// <param name="obj"></param>
    /// <param name="objectType"></param>
    /// <param name="propertyPath"></param>
    /// <param name="value"></param>
    public static void SetValueByPath(object? obj, Type objectType, string propertyPath, object value)
    {
        var currentType = objectType;
        PropertyInfo? property;
        var objectPath = currentType.FullName;
        var absolutePropertyPath = propertyPath;
        if (absolutePropertyPath.StartsWith(objectPath ?? throw new InvalidOperationException()))
        {
            absolutePropertyPath = absolutePropertyPath.Replace(objectPath + ".", "");
        }

        var properties = absolutePropertyPath.Split('.');

        if (properties.Length == 1)
        {
            property = objectType.GetProperty(properties.First());
            property?.SetValue(obj, value);
            return;
        }

        for (int i = 0; i < properties.Length - 1; i++)
        {
            property = currentType?.GetProperty(properties[i]);
            obj = property?.GetValue(obj, null);
            currentType = property?.PropertyType;
        }

        property = currentType?.GetProperty(properties.Last());
        property?.SetValue(obj, value);
    }

    public static bool IsPropertyGetterSetterMethod(MethodInfo method, Type type)
    {
        if (!method.IsSpecialName)
        {
            return false;
        }

        if (method.Name.Length < 5)
        {
            return false;
        }

        return type.GetProperty(method.Name.Substring(4), BindingFlags.Instance | BindingFlags.Static | BindingFlags.NonPublic) != null;
    }

    public static async Task<object?> InvokeAsync(MethodInfo method, object obj, params object[] parameters)
    {
        var task = (Task)method.Invoke(obj, parameters)!;
        await task;
        var resultProperty = task.GetType().GetProperty("Result");
        return resultProperty?.GetValue(task);
    }
}