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Examples/CLI/Processor/StopwatchProcessor.cs

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+using Process.Abstract;
+using Process.Interface;
+using System.Diagnostics;
+
+namespace CLI.Processor;
+
+public class StopwatchProcessor<TInput, TOutput> : Processor<TInput, TOutput>
+{
+  private readonly IProcessor<TInput, TOutput> _processor;
+
+  /// <summary>
+  /// Execution time of the last processing action
+  /// </summary>
+  public TimeSpan? Elapsed { get; private set; }
+
+  public StopwatchProcessor(IProcessor<TInput, TOutput> processor) => _processor = processor;
+
+  public override IEnumerable<TOutput> Process(IEnumerable<TInput> inputs)
+  {
+    var stopWatch = Stopwatch.StartNew();
+    var results = _processor.Process(inputs);
+    stopWatch.Stop();
+    Elapsed = stopWatch.Elapsed;
+    return results;
+  }
+
+  /// <inheritdoc />
+  public override string? ToString() => _processor.ToString();
+}