Add metadata and opt-in user audit

Author: condron

Samples/Metadata/MetadataSamples.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.4.33205.214
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "SimpleMetadata", "SimpleMetadata\SimpleMetadata.csproj", "{5D07F2E4-0E18-45B0-9892-301D0F376674}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "PersistedMetadata", "PersistedMetadata\PersistedMetadata.csproj", "{E7948E00-48F4-40EC-AEA7-95D4D980FF3A}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{E37482FD-52F2-4C89-80A8-635EC3D17626}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{5D07F2E4-0E18-45B0-9892-301D0F376674}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{5D07F2E4-0E18-45B0-9892-301D0F376674}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{5D07F2E4-0E18-45B0-9892-301D0F376674}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{5D07F2E4-0E18-45B0-9892-301D0F376674}.Release|Any CPU.Build.0 = Release|Any CPU
+		{E7948E00-48F4-40EC-AEA7-95D4D980FF3A}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{E7948E00-48F4-40EC-AEA7-95D4D980FF3A}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{E7948E00-48F4-40EC-AEA7-95D4D980FF3A}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{E7948E00-48F4-40EC-AEA7-95D4D980FF3A}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {2C267E53-266D-4E15-8F57-4014069A253C}
+	EndGlobalSection
+EndGlobal

Samples/Metadata/PersistedMetadata/MessageWindow.Designer.cs

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+
+//------------------------------------------------------------------------------
+
+//  <auto-generated>
+//      This code was generated by:
+//        TerminalGuiDesigner v1.0.23.0
+//      You can make changes to this file and they will not be overwritten when saving.
+//  </auto-generated>
+// -----------------------------------------------------------------------------
+namespace Sample1
+{
+    using Metadata_Sample_App;
+    using ReactiveDomain;
+    using ReactiveDomain.Messaging;
+    using ReactiveDomain.Messaging.Bus;
+    using Terminal.Gui;
+
+
+    public partial class MessageWindow
+    {
+        private IBus _bus;
+        private Messages.Sender _currentUser;
+        public MessageWindow(InMemoryBus bus)
+        {
+            _bus = bus;
+            InitializeComponent();
+            quit.Clicked += () => Application.RequestStop();
+            bus.Subscribe(new AdHocHandler<Messages.Greeting>(msg => RecieveGreetings(msg)));
+            bus.Subscribe(new AdHocHandler<Messages.Farewell>(msg => RecieveFarewells(msg)));
+            sendGreeting.Clicked += SendGreetings;
+            sendFarewell.Clicked += SendFarewell;
+            editMeMenuItem1.Action = () => { _currentUser = new Messages.Sender() { Name = "Alice" }; senderName.Text = _currentUser.Name; };
+            editMeMenuItem2.Action = () => { _currentUser = new Messages.Sender() { Name = "Bob" }; senderName.Text = _currentUser.Name; };
+        }
+        private bool TryGetCurrentUser(out Messages.Sender user)
+        {
+            user = _currentUser;
+            if (_currentUser == null)
+            {
+                MessageBox.Query(55, 7, "Error", "Please login via the login menu at the top ^^^ first.", "Ok");
+                return false;
+            }
+            return true;
+        }
+
+        public void SendGreetings()
+        {   
+            //get the logged in user
+            if(!TryGetCurrentUser(out var user)){ return;}
+            //create message with greeting data
+            var msg = new Messages.Greeting((string)msgText.Text);
+            //add sender metadata to the message
+            msg.WriteMetadatum<Messages.Sender>(user);
+            _bus.Publish(msg);
+        }
+        public void SendFarewell()
+        {
+            //get the logged in user
+            if(!TryGetCurrentUser(out var user)){ return;}
+            //create message with Frarewell data
+            var msg = new Messages.Farewell((string)msgText.Text);
+            //add sender metadat to the message
+            msg.WriteMetadatum<Messages.Sender>(user);
+            _bus.Publish(msg);
+        }
+        public void RecieveGreetings(Messages.Greeting msg)
+        {
+            // message type
+            msgType.Text = msg.GetType().Name;
+
+            //read message data
+            msgTextRecieved.Text = msg.Text;
+
+            //read sender metadata
+            msgFrom.Text = msg.ReadMetadatum<Messages.Sender>().Name;
+        }
+        public void RecieveFarewells(Messages.Farewell msg)
+        {
+            //message type
+            msgType.Text = msg.GetType().Name;
+
+            //read message data
+            msgTextRecieved.Text = msg.Text;
+
+            //read sender metadata
+            msgFrom.Text = msg.ReadMetadatum<Messages.Sender>().Name;
+        }
+    }
+}

Samples/Metadata/PersistedMetadata/MessageWindow.cs

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+using ReactiveDomain.Messaging;
+
+namespace Metadata_Sample_App
+{
+    public class Messages
+    {
+        public class Greeting : Message
+        {
+            public readonly string Text;
+            public Greeting(string text)
+            {
+                Text = text;
+            }
+        }
+      public class Farewell : Message
+        {
+            public readonly string Text;
+            public Farewell(string text)
+            {
+                Text = text;
+            }
+        }
+        public class Sender
+        {
+            public string Name;
+        }
+    }
+}