StephaneLenclud@210: using System;
StephaneLenclud@210: using System.Collections.Generic;
StephaneLenclud@210: using System.Linq;
StephaneLenclud@210: using System.Text;
StephaneLenclud@210: using System.Threading.Tasks;
StephaneLenclud@210: using System.Reflection;
StephaneLenclud@210: 
StephaneLenclud@210: 
StephaneLenclud@210: namespace SharpLib.Utils
StephaneLenclud@210: {
StephaneLenclud@210:     public class Reflection
StephaneLenclud@210:     {
StephaneLenclud@210:         /// <summary>
StephaneLenclud@213:         /// Get a list of all the concrete types derived from the given type in all loaded assembly.
StephaneLenclud@210:         /// </summary>
StephaneLenclud@210:         /// <typeparam name="T"></typeparam>
StephaneLenclud@210:         /// <returns></returns>
StephaneLenclud@210:         public static IEnumerable<Type> GetConcreteClassesDerivedFrom<T>() where T : class
StephaneLenclud@210:         {
StephaneLenclud@210:             List<Type> objects = new List<Type>();
StephaneLenclud@213: 
StephaneLenclud@213:             foreach (Assembly asm in AppDomain.CurrentDomain.GetAssemblies())
StephaneLenclud@210:             {
StephaneLenclud@213:                 foreach (Type type in asm.GetTypes()
StephaneLenclud@213:                         .Where(myType => myType.IsClass && !myType.IsAbstract && myType.IsSubclassOf(typeof(T))))
StephaneLenclud@213:                 {
StephaneLenclud@213:                     objects.Add(type);
StephaneLenclud@213:                 }
StephaneLenclud@210:             }
StephaneLenclud@210: 
StephaneLenclud@210:             return objects;
StephaneLenclud@210:         }
StephaneLenclud@210: 
StephaneLenclud@210:         /// <summary>
StephaneLenclud@213:         /// Get a dictionary of all the concrete types derived from the given type in all loaded assembly.
StephaneLenclud@210:         /// </summary>
StephaneLenclud@210:         /// <typeparam name="T"></typeparam>
StephaneLenclud@210:         /// <returns></returns>
StephaneLenclud@210:         public static IDictionary<string, Type> GetConcreteClassesDerivedFromByName<T>() where T : class
StephaneLenclud@210:         {
StephaneLenclud@210:             Dictionary<string, Type> objects = new Dictionary<string, Type>();
StephaneLenclud@213:             foreach (Assembly asm in AppDomain.CurrentDomain.GetAssemblies())
StephaneLenclud@213:             {
StephaneLenclud@213:                 foreach (Type type in asm.GetTypes()
StephaneLenclud@210:                 .Where(myType => myType.IsClass && !myType.IsAbstract && myType.IsSubclassOf(typeof(T))))
StephaneLenclud@213:                 {
StephaneLenclud@213:                     objects.Add(type.Name, type);
StephaneLenclud@213:                 }
StephaneLenclud@210:             }
StephaneLenclud@210:             return objects;
StephaneLenclud@210:         }
StephaneLenclud@210: 
StephaneLenclud@210:         /// <summary>
StephaneLenclud@213:         /// Get a list of an instance of all the types derived from the given type in all loaded assembly.
StephaneLenclud@210:         /// </summary>
StephaneLenclud@210:         /// <typeparam name="T"></typeparam>
StephaneLenclud@210:         /// <returns></returns>
StephaneLenclud@210:         public static IEnumerable<T> GetConcreteClassesInstanceDerivedFrom<T>() where T : class
StephaneLenclud@210:         {
StephaneLenclud@210:             List<T> objects = new List<T>();
StephaneLenclud@213:             foreach (Assembly asm in AppDomain.CurrentDomain.GetAssemblies())
StephaneLenclud@213:             {
StephaneLenclud@213:                 foreach (Type type in asm.GetTypes()
StephaneLenclud@210:                 .Where(myType => myType.IsClass && !myType.IsAbstract && myType.IsSubclassOf(typeof(T))))
StephaneLenclud@213:                 {
StephaneLenclud@213:                     objects.Add((T)Activator.CreateInstance(type));
StephaneLenclud@213:                 }
StephaneLenclud@210:             }
StephaneLenclud@210: 
StephaneLenclud@210:             if (objects.Count>0
StephaneLenclud@210:                 && objects[0] is IComparable)
StephaneLenclud@210:             {
StephaneLenclud@210:                 objects.Sort();
StephaneLenclud@210:             }
StephaneLenclud@210: 
StephaneLenclud@210:             return objects;
StephaneLenclud@210:         }
StephaneLenclud@210: 
StephaneLenclud@210:         /// <summary>
StephaneLenclud@213:         /// Get a dictionary of an instance of all the types derived from the given type in all loaded assembly.
StephaneLenclud@210:         /// </summary>
StephaneLenclud@210:         /// <typeparam name="T"></typeparam>
StephaneLenclud@210:         /// <returns></returns>
StephaneLenclud@210:         public static IDictionary<string, T> GetConcreteClassesInstanceDerivedFromByName<T>() where T : class
StephaneLenclud@210:         {
StephaneLenclud@210:             Dictionary<string, T> objects = new Dictionary<string, T>();
StephaneLenclud@213:             foreach (Assembly asm in AppDomain.CurrentDomain.GetAssemblies())
StephaneLenclud@213:             {
StephaneLenclud@213:                 foreach (Type type in asm.GetTypes()
StephaneLenclud@210:                 .Where(myType => myType.IsClass && !myType.IsAbstract && myType.IsSubclassOf(typeof(T))))
StephaneLenclud@213:                 {
StephaneLenclud@213:                     objects.Add(type.Name, (T)Activator.CreateInstance(type));
StephaneLenclud@213:                 }
StephaneLenclud@210:             }
StephaneLenclud@210: 
StephaneLenclud@210: 
StephaneLenclud@210:             return objects;
StephaneLenclud@210:         }
StephaneLenclud@210: 
StephaneLenclud@210: 
StephaneLenclud@210: 
StephaneLenclud@210:         /// <summary>
StephaneLenclud@213:         /// Get the attribute instance matching the given attribute type from the specified type.
StephaneLenclud@210:         /// </summary>
StephaneLenclud@210:         /// <typeparam name="T"></typeparam>
StephaneLenclud@210:         /// <param name="aType"></param>
StephaneLenclud@210:         /// <returns></returns>
StephaneLenclud@210:         public static T GetAttribute<T>(Type aType) where T : class
StephaneLenclud@210:         {
StephaneLenclud@210:             object[] attrs = aType.GetCustomAttributes(true);
StephaneLenclud@210:             foreach (object attr in attrs)
StephaneLenclud@210:             {
StephaneLenclud@210:                 T attribute = attr as T;
StephaneLenclud@210:                 if (attribute != null)
StephaneLenclud@210:                 {
StephaneLenclud@210:                     return attribute;
StephaneLenclud@210:                 }
StephaneLenclud@210:             }
StephaneLenclud@210: 
StephaneLenclud@210:             return null;
StephaneLenclud@210:         }
StephaneLenclud@210: 
Stephane@212:         /// <summary>
StephaneLenclud@213:         /// Get a list of all the types derived from the given type in all loaded assembly.
Stephane@212:         /// </summary>
Stephane@212:         /// <param name="baseType"></param>
Stephane@212:         /// <param name="assembly"></param>
Stephane@212:         /// <returns></returns>
Stephane@212:         public static IEnumerable<Type> GetDerivedTypes<T>() where T: class
StephaneLenclud@213:         {
StephaneLenclud@213:             List<Type> types = new List<Type>();
StephaneLenclud@213:             foreach (Assembly asm in AppDomain.CurrentDomain.GetAssemblies())
StephaneLenclud@213:             {
StephaneLenclud@213:                 foreach (Type type in asm.GetTypes()
StephaneLenclud@213:                 .Where(myType => myType.IsClass && myType.IsSubclassOf(typeof(T))))
StephaneLenclud@213:                 {
StephaneLenclud@213:                     types.Add(type);
StephaneLenclud@213:                 }
StephaneLenclud@213:             }
Stephane@212:             return types;
Stephane@212:         }
StephaneLenclud@210:     }
StephaneLenclud@210: }