DiagnosticsRecorder.cs

using System.Collections.Generic;
using System.Text;
using System;

namespace NG.Diagnostics
{
    public class DiagnosticRecorder
    {
        private Dictionary<string, StopwatchRecorder> timers = new Dictionary<string, StopwatchRecorder>();
        private Dictionary<string, Counter> counters = new Dictionary<string, Counter>();

        public void StartTimer(string name)
        {
            if (!timers.ContainsKey(name))
                timers.Add(name, new StopwatchRecorder());

            timers[name].Start();
        }

        public void StopTimer(string name)
        {
            if (timers.ContainsKey(name))
                timers[name].Stop();
        }

        public void RecordCount(string name, int value, bool shouldCaptureZero = false)
        {
            if (!counters.ContainsKey(name))
                counters.Add(name, new Counter());

            counters[name].Record(value, shouldCaptureZero);
        }

        public StopwatchRecorder GetStopwatch(string name)
        {
            if (timers.ContainsKey(name))
                return timers[name];
            else
                throw new ArgumentOutOfRangeException(
                    string.Format("No StopWatchRecorder with name: '{0}' found.", name));
        }

        public Counter GetCounter(string name)
        {
            if (counters.ContainsKey(name))
                return counters[name];
            else
                throw new ArgumentOutOfRangeException(
                    string.Format("No Counter with name: '{0}' found.", name));
        }


        public override string ToString()
        {
            StringBuilder sb = new StringBuilder();

            if (timers.Count > 0)
                sb.AppendLine("Timers (ms)");

            foreach (var item in timers)
            {
                sb.AppendFormat("{0}\nLast: {1}\tMin: {2}\tMax: {3}\tAvg: {4:N1}\tTotal: {5}\n",
                    item.Key, item.Value.LastElapsedMilliseconds,
                    item.Value.MinimumElapsedMilliseconds,
                    item.Value.MaximumElapsedMilliseconds,
                    item.Value.AverageElapsedMilliseconds,
                    item.Value.TotalElapsedMilliseconds);
            }

            if (counters.Count > 0)
                sb.AppendLine("Counters");

            foreach (var item in counters)
            {
                sb.AppendFormat("{0}\nLast: {1}\tMin: {2}\tMax: {3}\tAvg: {4}\tSum: {5}\n",
                    item.Key, item.Value.Last, item.Value.Min, item.Value.Max, item.Value.Average, item.Value.Sum);
            }

            return sb.ToString();
        }
    }
}