BuildDurationTracker.cs :  » Build-Systems » CruiseControl.NET » ThoughtWorks » CruiseControl » CCTrayLib » Monitoring » C# / CSharp Open Source

using System;

namespace ThoughtWorks.CruiseControl.CCTrayLib.Monitoring{
  public class BuildDurationTracker
  {
    private bool isBuildInProgress;
    private DateTimeProvider currentTimeProvider;
    private DateTime timeOfCurrentBuildStart;
    private TimeSpan lastBuildDuration = TimeSpan.MaxValue;


    public BuildDurationTracker()
      : this(new DateTimeProvider())
    {
    }

    public BuildDurationTracker(DateTimeProvider currentTimeProvider)
    {
      this.currentTimeProvider = currentTimeProvider;
    }

    public TimeSpan LastBuildDuration
    {
      get { return lastBuildDuration; }
    }

    public TimeSpan EstimatedTimeRemainingOnCurrentBuild
    {
      get
      {
        if (!isBuildInProgress || lastBuildDuration == TimeSpan.MaxValue)
          return TimeSpan.MaxValue;

        return (timeOfCurrentBuildStart + lastBuildDuration) - currentTimeProvider.Now;
      }
    }

    public bool IsBuildInProgress
    {
      get { return isBuildInProgress; }
    }

    public void OnBuildStart()
    {
      isBuildInProgress = true;
      timeOfCurrentBuildStart = currentTimeProvider.Now;
    }

    public void OnSuccessfulBuild()
    {
      if (isBuildInProgress)
      {
        lastBuildDuration = currentTimeProvider.Now - timeOfCurrentBuildStart;
        isBuildInProgress = false;
      }
    }

  }
}