YwxAppWpfBarrage/YwxAppWpfBarrage/Services/BarragePerformanceMonitor.cs

using System;
using System.Collections.Generic;
using System.Diagnostics;

namespace YwxAppWpfBarrage.Services
{
    public class BarragePerformanceMonitor
    {
        private readonly Stopwatch _stopwatch = new Stopwatch();
        private readonly List<Exception> _errors = new List<Exception>();

        private int _totalBarrageAdded;
        private int _totalBarrageFiltered;
        private int _totalBarrageRemoved;

        public void Start()
        {
            _stopwatch.Start();
        }

        public void Stop()
        {
            _stopwatch.Stop();
        }

        public void RecordAddedBarrage()
        {
            _totalBarrageAdded++;
        }

        public void RecordFilteredBarrage()
        {
            _totalBarrageFiltered++;
        }

        public void RecordRemovedBarrage()
        {
            _totalBarrageRemoved++;
        }

        public void RecordClear()
        {
            _totalBarrageRemoved += _totalBarrageAdded - _totalBarrageRemoved;
        }

        public void RecordError(Exception ex)
        {
            _errors.Add(ex);
        }

        public PerformanceStats GetStats()
        {
            return new PerformanceStats
            {
                TotalTime = _stopwatch.Elapsed,
                TotalBarrageAdded = _totalBarrageAdded,
                TotalBarrageFiltered = _totalBarrageFiltered,
                TotalBarrageRemoved = _totalBarrageRemoved,
                Errors = _errors.ToArray(),
                BarragePerSecond = _stopwatch.Elapsed.TotalSeconds > 0 ?
                    _totalBarrageAdded / _stopwatch.Elapsed.TotalSeconds : 0
            };
        }

        public class PerformanceStats
        {
            public TimeSpan TotalTime { get; set; }
            public int TotalBarrageAdded { get; set; }
            public int TotalBarrageFiltered { get; set; }
            public int TotalBarrageRemoved { get; set; }
            public Exception[] Errors { get; set; }
            public double BarragePerSecond { get; set; }
        }
    }
}