1 files changed, 89 insertions, 0 deletions
diff --git a/lib/Plugins.Essentials.ServiceStack/src/HttpServiceStackBuilder.cs b/lib/Plugins.Essentials.ServiceStack/src/HttpServiceStackBuilder.cs
new file mode 100644
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+++ b/lib/Plugins.Essentials.ServiceStack/src/HttpServiceStackBuilder.cs
@@ -0,0 +1,89 @@
+/*
+* Copyright (c) 2022 Vaughn Nugent
+* 
+* Library: VNLib
+* Package: VNLib.Plugins.Essentials.ServiceStack
+* File: HttpServiceStackBuilder.cs 
+*
+* HttpServiceStackBuilder.cs is part of VNLib.Plugins.Essentials.ServiceStack which is part of the larger 
+* VNLib collection of libraries and utilities.
+*
+* VNLib.Plugins.Essentials.ServiceStack is free software: you can redistribute it and/or modify 
+* it under the terms of the GNU Affero General Public License as 
+* published by the Free Software Foundation, either version 2 of the
+* License, or (at your option) any later version.
+*
+* VNLib.Plugins.Essentials.ServiceStack is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+* GNU Affero General Public License for more details.
+*
+* You should have received a copy of the GNU Affero General Public License
+* along with this program.  If not, see https://www.gnu.org/licenses/.
+*/
+
+using VNLib.Net.Http;
+
+namespace VNLib.Plugins.Essentials.ServiceStack
+{
+    /// <summary>
+    /// A data structure used to build/create a <see cref="HttpServiceStack"/>
+    /// around a <see cref="ServiceDomain"/>
+    /// </summary>
+    public sealed class HttpServiceStackBuilder
+    {
+        private readonly LinkedList<HttpServer> _servers;
+
+        /// <summary>
+        /// The built <see cref="HttpServiceStack"/>
+        /// </summary>
+        public HttpServiceStack ServiceStack { get; }
+
+        /// <summary>
+        /// Gets the underlying <see cref="ServiceDomain"/>
+        /// </summary>
+        public ServiceDomain ServiceDomain { get; }
+
+        /// <summary>
+        /// Initializes a new <see cref="HttpServiceStack"/> that will 
+        /// generate servers to listen for services exposed by the 
+        /// specified host context
+        /// </summary>
+        public HttpServiceStackBuilder()
+        {
+            ServiceDomain = new();
+            _servers = new();
+            ServiceStack = new(_servers, ServiceDomain);
+        }
+
+        /// <summary>
+        /// Builds all http servers from 
+        /// </summary>
+        /// <param name="config">The http server configuration to user for servers</param>
+        /// <param name="getTransports">A callback method that gets the transport provider for the given host group</param>
+        public void BuildServers(in HttpConfig config, Func<ServiceGroup, ITransportProvider> getTransports)
+        {
+            //enumerate hosts groups
+            foreach (ServiceGroup hosts in ServiceDomain.ServiceGroups)
+            {
+                //get transport for provider
+                ITransportProvider transport = getTransports.Invoke(hosts);
+
+                //Create new server
+                HttpServer server = new(config, transport, hosts.Hosts.Select(static h => h.Processor as IWebRoot));
+
+                //Add server to internal list
+                _servers.AddLast(server);
+            }
+        }
+
+        /// <summary>
+        /// Releases any resources that may be held by the <see cref="ServiceDomain"/>
+        /// incase of an error
+        /// </summary>
+        public void ReleaseOnError()
+        {
+            ServiceStack.Dispose();
+        }
+    }
+}