Added AbpOptionsFactory

src/Volo.Abp.Core/Volo/Abp/Options/AbpOptionsFactory.cs

@@ -0,0 +1,42 @@
+using System.Collections.Generic;
+using Microsoft.Extensions.Options;
+
+namespace Volo.Abp.Options
+{
+    //TODO: Derive from OptionsFactory when this is released: https://github.com/aspnet/Options/pull/258 (or completely remove this!)
+    public class AbpOptionsFactory<TOptions> : IOptionsFactory<TOptions> where TOptions : class, new()
+    {
+        private readonly IEnumerable<IConfigureOptions<TOptions>> _setups;
+        private readonly IEnumerable<IPostConfigureOptions<TOptions>> _postConfigures;
+
+        public AbpOptionsFactory(IEnumerable<IConfigureOptions<TOptions>> setups, IEnumerable<IPostConfigureOptions<TOptions>> postConfigures)
+        {
+            _setups = setups;
+            _postConfigures = postConfigures;
+        }
+
+        public virtual TOptions Create(string name)
+        {
+            var options = new TOptions();
+
+            foreach (var setup in _setups)
+            {
+                if (setup is IConfigureNamedOptions<TOptions> namedSetup)
+                {
+                    namedSetup.Configure(name, options);
+                }
+                else if (name == Microsoft.Extensions.Options.Options.DefaultName)
+                {
+                    setup.Configure(options);
+                }
+            }
+
+            foreach (var post in _postConfigures)
+            {
+                post.PostConfigure(name, options);
+            }
+
+            return options;
+        }
+    }
+}