SharpLibUtils/Reflection.cs
changeset 210 83dd86e73448
child 212 1a0791daa243
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/SharpLibUtils/Reflection.cs	Sat Jul 23 16:00:04 2016 +0200
     1.3 @@ -0,0 +1,118 @@
     1.4 +using System;
     1.5 +using System.Collections.Generic;
     1.6 +using System.Linq;
     1.7 +using System.Text;
     1.8 +using System.Threading.Tasks;
     1.9 +using System.Linq;
    1.10 +using System.Reflection;
    1.11 +
    1.12 +
    1.13 +namespace SharpLib.Utils
    1.14 +{
    1.15 +    public class Reflection
    1.16 +    {
    1.17 +        /// <summary>
    1.18 +        /// 
    1.19 +        /// </summary>
    1.20 +        /// <typeparam name="T"></typeparam>
    1.21 +        /// <returns></returns>
    1.22 +        public static IEnumerable<Type> GetConcreteClassesDerivedFrom<T>() where T : class
    1.23 +        {
    1.24 +            List<Type> objects = new List<Type>();
    1.25 +            foreach (Type type in
    1.26 +                Assembly.GetAssembly(typeof(T)).GetTypes()
    1.27 +                .Where(myType => myType.IsClass && !myType.IsAbstract && myType.IsSubclassOf(typeof(T))))
    1.28 +            {
    1.29 +                objects.Add(type);
    1.30 +            }
    1.31 +
    1.32 +            return objects;
    1.33 +        }
    1.34 +
    1.35 +        /// <summary>
    1.36 +        /// 
    1.37 +        /// </summary>
    1.38 +        /// <typeparam name="T"></typeparam>
    1.39 +        /// <returns></returns>
    1.40 +        public static IDictionary<string, Type> GetConcreteClassesDerivedFromByName<T>() where T : class
    1.41 +        {
    1.42 +            Dictionary<string, Type> objects = new Dictionary<string, Type>();
    1.43 +            foreach (Type type in
    1.44 +                Assembly.GetAssembly(typeof(T)).GetTypes()
    1.45 +                .Where(myType => myType.IsClass && !myType.IsAbstract && myType.IsSubclassOf(typeof(T))))
    1.46 +            {
    1.47 +                objects.Add(type.Name,type);
    1.48 +            }
    1.49 +
    1.50 +            return objects;
    1.51 +        }
    1.52 +
    1.53 +        /// <summary>
    1.54 +        /// 
    1.55 +        /// </summary>
    1.56 +        /// <typeparam name="T"></typeparam>
    1.57 +        /// <returns></returns>
    1.58 +        public static IEnumerable<T> GetConcreteClassesInstanceDerivedFrom<T>() where T : class
    1.59 +        {
    1.60 +            List<T> objects = new List<T>();
    1.61 +            foreach (Type type in
    1.62 +                Assembly.GetAssembly(typeof(T)).GetTypes()
    1.63 +                .Where(myType => myType.IsClass && !myType.IsAbstract && myType.IsSubclassOf(typeof(T))))
    1.64 +            {
    1.65 +                objects.Add((T)Activator.CreateInstance(type));
    1.66 +            }
    1.67 +
    1.68 +            if (objects.Count>0
    1.69 +                && objects[0] is IComparable)
    1.70 +            {
    1.71 +                objects.Sort();
    1.72 +            }
    1.73 +
    1.74 +            return objects;
    1.75 +        }
    1.76 +
    1.77 +        /// <summary>
    1.78 +        /// 
    1.79 +        /// </summary>
    1.80 +        /// <typeparam name="T"></typeparam>
    1.81 +        /// <returns></returns>
    1.82 +        public static IDictionary<string, T> GetConcreteClassesInstanceDerivedFromByName<T>() where T : class
    1.83 +        {
    1.84 +            Dictionary<string, T> objects = new Dictionary<string, T>();
    1.85 +            foreach (Type type in
    1.86 +                Assembly.GetAssembly(typeof(T)).GetTypes()
    1.87 +                .Where(myType => myType.IsClass && !myType.IsAbstract && myType.IsSubclassOf(typeof(T))))
    1.88 +            {
    1.89 +                objects.Add(type.Name,(T)Activator.CreateInstance(type));
    1.90 +            }
    1.91 +
    1.92 +
    1.93 +            return objects;
    1.94 +        }
    1.95 +
    1.96 +
    1.97 +
    1.98 +        /// <summary>
    1.99 +        /// 
   1.100 +        /// </summary>
   1.101 +        /// <typeparam name="T"></typeparam>
   1.102 +        /// <param name="aType"></param>
   1.103 +        /// <returns></returns>
   1.104 +        public static T GetAttribute<T>(Type aType) where T : class
   1.105 +        {
   1.106 +            object[] attrs = aType.GetCustomAttributes(true);
   1.107 +            foreach (object attr in attrs)
   1.108 +            {
   1.109 +                T attribute = attr as T;
   1.110 +                if (attribute != null)
   1.111 +                {
   1.112 +                    return attribute;
   1.113 +                }
   1.114 +            }
   1.115 +
   1.116 +            return null;
   1.117 +        }
   1.118 +
   1.119 +    }
   1.120 +
   1.121 +}