Merge pull request #1006 from Particular/plugin-check

Improvements in plugin loading and error handling

Author: HEskandari

src/ServiceInsight.Tests/ShellViewModelTests.cs

@@ -87,6 +87,7 @@ public void TestInitialize()
                         app,
                         windowManager,
                         Substitute.For<IApplicationVersionService>(),
+                        logWindow,
                         endpointExplorer,
                         messageList,
                         () => Substitute.For<ServiceControlConnectionViewModel>(),
@@ -97,14 +98,13 @@ public void TestInitialize()
                         licenseManager,
                         messageFlow,
                         sagaWindow,
-                        messageBodyView,
                         headerView,
                         sequenceDiagramView,
                         settingsProvider,
                         versionUpdateChecker,
                         messageProperties,
-                        logWindow,
-                        commandLineArgParser);
+                        commandLineArgParser,
+                        messageBodyView);
 
             ((IViewAware)shell).AttachView(view);
         }

src/ServiceInsight/AssemblyScanning/AssemblyScanner.cs

@@ -58,8 +58,6 @@ IEnumerable<string> ReservedAssemblyNames
                 yield return "DevExpress";
                 yield return "Serilog";
                 yield return "Mindscape";
-                yield return "System";
-                yield return "Microsoft";
                 yield return "RestSharp";
                 yield return "GongSolutions";
                 yield return "ICSharpCode";

src/ServiceInsight/Framework/Logging/LoggingConfig.cs

@@ -2,11 +2,14 @@
 {
     using System;
     using System.IO;
+    using System.Linq;
     using System.Reactive.Concurrency;
     using System.Reactive.Linq;
     using Caliburn.Micro;
     using LogWindow;
+    using MessageViewers.CustomMessageViewer;
     using Serilog;
+    using Serilog.Core;
     using Serilog.Events;
     using Serilog.Filters;
     using ServiceControl;
@@ -19,9 +22,7 @@ public static void SetupLogging()
 
             Log.Logger = new LoggerConfiguration()
                 .MinimumLevel.Verbose()
-
-                // Turn off some of Caliburn.Micro's chattiness
-                .Filter.ByExcluding(le => Matching.FromSource(typeof(Screen).FullName)(le) && le.Level <= LogEventLevel.Information)
+                .Filter.ByExcluding(le => Matching.FromSource(typeof(Screen).FullName)(le) && le.Level <= LogEventLevel.Information)  // Turn off some of Caliburn.Micro's chattiness
                 .Filter.ByExcluding(le => Matching.FromSource(typeof(Caliburn.Micro.Action).FullName)(le) && le.Level <= LogEventLevel.Information)
                 .Filter.ByExcluding(le => Matching.FromSource(typeof(ActionMessage).FullName)(le) && le.Level <= LogEventLevel.Information)
                 .Filter.ByExcluding(le => Matching.FromSource(typeof(ViewModelBinder).FullName)(le) && le.Level <= LogEventLevel.Information)
@@ -30,7 +31,7 @@ public static void SetupLogging()
                 .WriteTo.Trace(outputTemplate: "[{Level}] ({SourceContext}) {Message}{NewLine}{Exception}")
                 .WriteTo.Logger(lc => lc
                     .MinimumLevel.Verbose()
-                    .Filter.ByIncludingOnly(Matching.FromSource<DefaultServiceControl>())
+                    .Filter.ByIncludingOnly(MatchingTypes(typeof(DefaultServiceControl), typeof(CustomMessageViewerResolver)))
                     .WriteTo.Observers(logEvents => logEvents
                         .ObserveOn(TaskPoolScheduler.Default)
                         .Do(LogWindowViewModel.LogObserver)
@@ -42,5 +43,15 @@ public static void SetupCaliburnMicroLogging()
         {
             LogManager.GetLog = type => new CaliburnMicroLogAdapter(Log.ForContext(type));
         }
+
+        static Func<LogEvent, bool> MatchingTypes(params Type[] type)
+        {
+            var scalars = type.Select(t => new ScalarValue(t.FullName));
+
+            return e =>
+            {
+                return scalars.Any(s => e.Properties.TryGetValue(Constants.SourceContextPropertyName, out var propertyValue) && s.Equals(propertyValue));
+            };
+        }
     }
 }

src/ServiceInsight/MessageViewers/CustomMessageViewer/CustomMessageViewerResolver.cs

@@ -1,5 +1,7 @@
 namespace ServiceInsight.MessageViewers.CustomMessageViewer
 {
+    using System;
+    using Anotar.Serilog;
     using Autofac;
 
     sealed class CustomMessageViewerResolver : ICustomMessageViewerResolver
@@ -13,7 +15,22 @@ public CustomMessageViewerResolver(ILifetimeScope autofacContainer)
 
         public ICustomMessageBodyViewer GetCustomMessageBodyViewer()
         {
-            return autofacContainer.ResolveOptional<ICustomMessageBodyViewer>() ?? new NopViewer();
+            try
+            {
+                var viewer = autofacContainer.ResolveOptional<ICustomMessageBodyViewer>();
+
+                if (viewer != null)
+                {
+                    LogTo.Information("Loaded {0} custom message viewer from the plugin.", viewer.GetType());
+                }
+
+                return viewer ?? new NopViewer();
+            }
+            catch (Exception ex)
+            {
+                LogTo.Fatal(ex, "Failed to load the custom viewer plugin.");
+                return new NopViewer();
+            }
         }
     }
 }

src/ServiceInsight/Properties/AssemblyInfo.cs

@@ -5,10 +5,4 @@
 
 [assembly: ThemeInfo(
     ResourceDictionaryLocation.None,
-    //where theme specific resource dictionaries are located
-    //(used if a resource is not found in the page,
-    // or application resource dictionaries)
-    ResourceDictionaryLocation.SourceAssembly)]
-//where the generic resource dictionary is located
-//(used if a resource is not found in the page,
-// app, or any theme specific resource dictionaries)
+    ResourceDictionaryLocation.SourceAssembly)]

src/ServiceInsight/Shell/ShellViewModel.cs

@@ -59,6 +59,7 @@ public ShellViewModel(
             IAppCommands appCommander,
             IWindowManagerEx windowManager,
             IApplicationVersionService applicationVersionService,
+            LogWindowViewModel logWindow,
             EndpointExplorerViewModel endpointExplorer,
             MessageListViewModel messages,
             Func<ServiceControlConnectionViewModel> serviceControlConnection,
@@ -69,14 +70,13 @@ public ShellViewModel(
             AppLicenseManager licenseManager,
             MessageFlowViewModel messageFlow,
             SagaWindowViewModel sagaWindow,
-            MessageBodyViewModel messageBodyViewer,
             MessageHeadersViewModel messageHeadersViewer,
             SequenceDiagramViewModel sequenceDiagramViewer,
             ISettingsProvider settingsProvider,
             IVersionUpdateChecker versionUpdateChecker,
             MessagePropertiesViewModel messageProperties,
-            LogWindowViewModel logWindow,
-            CommandLineArgParser commandLineArgParser)
+            CommandLineArgParser commandLineArgParser,
+            MessageBodyViewModel messageBodyViewer)
         {
             this.appCommander = appCommander;
             this.windowManager = windowManager;

src/ServiceInsight/Startup/CommandLineArgParser.cs

@@ -2,15 +2,10 @@
 {
     using System;
     using System.IO.Pipes;
-    using System.ServiceProcess;
-    using Serilog;
     using System.Collections.Generic;
     using System.IO;
-    using System.Net;
-    using System.Net.Sockets;
     using Anotar.Serilog;
     using ServiceInsight.Models;
-    using ServiceInsight.Framework.Settings;
 
     public class CommandLineArgParser
     {