Fix: Logs could be exported via ConsoleExporter after LoggerFactory is disposed #1848

src/OpenTelemetry.Exporter.Console/.publicApi/net462/PublicAPI.Unshipped.txt

@@ -0,0 +1 @@
+override OpenTelemetry.Exporter.ConsoleLogRecordExporter.Dispose(bool disposing) -> void

src/OpenTelemetry.Exporter.Console/.publicApi/netstandard2.0/PublicAPI.Unshipped.txt

@@ -0,0 +1 @@
+override OpenTelemetry.Exporter.ConsoleLogRecordExporter.Dispose(bool disposing) -> void

src/OpenTelemetry.Exporter.Console/ConsoleLogRecordExporter.cs

@@ -23,6 +23,7 @@ namespace OpenTelemetry.Exporter
     public class ConsoleLogRecordExporter : ConsoleExporter<LogRecord>
     {
         private const int RightPaddingLength = 35;
+        private bool disposed = false;
 
         public ConsoleLogRecordExporter(ConsoleExporterOptions options)
             : base(options)
@@ -33,6 +34,11 @@ public override ExportResult Export(in Batch<LogRecord> batch)
         {
             foreach (var logRecord in batch)
             {
+                if (this.disposed)
+                {
+                    this.WriteLine("Something is wrong: the ConsoleLogger has been disposed.");
+                }
+
                 this.WriteLine($"{"LogRecord.Timestamp:",-RightPaddingLength}{logRecord.Timestamp:yyyy-MM-ddTHH:mm:ss.fffffffZ}");
 
                 if (logRecord.TraceId != default)
@@ -129,5 +135,13 @@ void ProcessScope(LogRecordScope scope, ConsoleLogRecordExporter exporter)
 
             return ExportResult.Success;
         }
+
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing)
+            {
+                this.disposed = true;
+            }
+        }
     }
 }