initial commit

CSharp/Core/Serilog.Sinks.LogView.Core/DataStoreLoggerSink.cs

@@ -0,0 +1,94 @@
+using Serilog.Events;
+using LogViewer.Core;
+using Microsoft.Extensions.Logging;
+using Serilog.Core;
+
+namespace Serilog.Sinks.LogView.Core;
+
+public class DataStoreLoggerSink : ILogEventSink
+{
+    protected readonly Func<ILogDataStore> _dataStoreProvider;
+    
+    private readonly IFormatProvider? _formatProvider;
+    private readonly Func<DataStoreLoggerConfiguration>? _getCurrentConfig;
+
+    public DataStoreLoggerSink(Func<ILogDataStore> dataStoreProvider,
+                               Func<DataStoreLoggerConfiguration>? getCurrentConfig = null,
+                               IFormatProvider? formatProvider = null)
+    {
+        _formatProvider = formatProvider;
+        _dataStoreProvider = dataStoreProvider;
+        _getCurrentConfig = getCurrentConfig;
+    }
+
+    public void Emit(LogEvent logEvent)
+    {
+        LogLevel logLevel = logEvent.Level switch
+        {
+            LogEventLevel.Verbose => LogLevel.Trace,
+            LogEventLevel.Debug => LogLevel.Debug,
+            LogEventLevel.Warning => LogLevel.Warning,
+            LogEventLevel.Error => LogLevel.Error,
+            LogEventLevel.Fatal => LogLevel.Critical,
+            _ => LogLevel.Information
+        };
+
+        DataStoreLoggerConfiguration config = _getCurrentConfig?.Invoke() ?? new DataStoreLoggerConfiguration();
+
+        EventId eventId = EventIdFactory(logEvent);
+        if (eventId.Id == 0 && config.EventId != 0)
+            eventId = config.EventId;
+
+        string message = logEvent.RenderMessage(_formatProvider);
+        
+        string exception = logEvent.Exception?.Message ?? (logEvent.Level >= LogEventLevel.Error ? message : string.Empty);
+
+        LogEntryColor color = config.Colors[logLevel];
+
+        AddLogEntry(logLevel, eventId, message, exception, color);
+    }
+
+    protected virtual void AddLogEntry(LogLevel logLevel, EventId eventId, string message, string exception, LogEntryColor color)
+    {
+        ILogDataStore? dataStore = _dataStoreProvider.Invoke();
+
+        // ReSharper disable once ConditionIsAlwaysTrueOrFalseAccordingToNullableAPIContract
+        if (dataStore == null)
+            return; // app is shutting down
+
+        dataStore.AddEntry(new()
+        {
+            Timestamp = DateTime.UtcNow,
+            LogLevel = logLevel,
+            EventId = eventId,
+            State = message,
+            Exception = exception,
+            Color = color
+        });
+    }
+
+    private static EventId EventIdFactory(LogEvent logEvent)
+    {
+        EventId eventId;
+        if (!logEvent.Properties.TryGetValue("EventId", out LogEventPropertyValue? src))
+            return new();
+        
+        int? id = null;
+        string? eventName = null;
+
+        // ref: https://stackoverflow.com/a/56722516
+        StructureValue? value = src as StructureValue;
+
+        LogEventProperty? idProperty = value!.Properties.FirstOrDefault(x => x.Name.Equals("Id"));
+        if (idProperty is not null)
+            id = int.Parse(idProperty.Value.ToString());
+
+        LogEventProperty? nameProperty = value.Properties.FirstOrDefault(x => x.Name.Equals("Name"));
+        if (nameProperty is not null)
+            eventName = nameProperty.Value.ToString().Trim('"');
+
+        eventId = new EventId(id ?? 0, eventName ?? string.Empty);
+
+        return eventId;
+    }
+}

CSharp/Core/Serilog.Sinks.LogView.Core/Extensions/DataStoreLoggerSinkExtensions.cs

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+using Serilog.Configuration;
+using LogViewer.Core;
+
+namespace Serilog.Sinks.LogView.Core;
+
+public static class DataStoreLoggerSinkExtensions
+{
+    public static LoggerConfiguration DataStoreLoggerSink
+    (
+        this LoggerSinkConfiguration loggerConfiguration,
+        Func<ILogDataStore> dataStoreProvider, 
+        Action<DataStoreLoggerConfiguration>? configuration = null,
+        IFormatProvider formatProvider = null!
+    )
+        => loggerConfiguration.Sink(new DataStoreLoggerSink(dataStoreProvider, GetConfig(configuration), formatProvider));
+
+    private static Func<DataStoreLoggerConfiguration> GetConfig(Action<DataStoreLoggerConfiguration>? configuration)
+    {
+        // convert from Action to Func delegate to pass data
+        DataStoreLoggerConfiguration data = new();
+        configuration?.Invoke(data);
+        return () => data;
+    }
+}

CSharp/Core/Serilog.Sinks.LogView.Core/Serilog.Sinks.LogView.Core.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net7.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Serilog" Version="2.12.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\LogViewer.Core\LogViewer.Core.csproj" />
+  </ItemGroup>
+
+</Project>