CODEWITHSUNDEEP
c#attributespostsharp
Kasrak
Kasrak

Reputation: 1561

PostSharp - logger as an aspect argument

Want to use PostSharp diagnostics with an aspect for exception handling encapsulated in a library assembly.

At the same time trying to setup and initialize a Serilog logger in the consumer assembly of that diagnostics library.

[AspectTypeDependency(AspectDependencyAction.Order, AspectDependencyPosition.After,
  typeof(AddContextOnExceptionAttribute))]
[PSerializable]
public sealed class ReportAndSwallowExceptionAttribute : OnExceptionAspect
{
    public ILogger TheLogger { get; set; }

    public ReportAndSwallowExceptionAttribute(ILogger logger)
    {
        TheLogger = logger;
    }

    public override void OnException(MethodExecutionArgs args)
    {
        TheLogger.Error("Error happened ...");
    }
 }

In the main class:

    class Program
    {
        // below line is the critical part which seems ILogger is not allowed
        [ReportAndSwallowException(Log.Logger)]
        public static void TryExceptionMethod()
        {
            throw new NotImplementedException();
        }
        
        static void Main(string[] args)
        {
            Log.Logger = new LoggerConfiguration()
                    .WriteTo.File(@"HERE\Logs\log-x.log", 
                     rollingInterval: RollingInterval.Day)
                     .CreateLogger();

            Console.WriteLine("Hello World!");
            TryExceptionMethod();

        }    

    }

Seems passing ILogger to that attribute is illegal, how can I achieve this scenario?

Current Error:

Error   CS0181: Attribute constructor parameter 'logger' has type 'ILogger', which is not a valid attribute parameter type

Think this error needs a constant to be solved, but the main question is how to achieve this scenario: have the logger in the consumer proj, have the aspects in a library.

Upvotes: 1

Views: 241

Answers (1)

Gael Fraiteur
Gael Fraiteur

Reputation: 6857

The easiest option here is that your aspect directly references Log.Logger.

There are several other more complex options that are documented here: https://doc.postsharp.net/consuming-dependencies

Upvotes: 2

Related Questions