/// <summary>
/// add an action to queue that will append the text
/// </summary>
/// <param name="format">string format</param>
/// <param name="args">format args, if any.</param>
protected virtual void PerformWriteLine(string format, params object[] args)
{
try
{
_collection.Add(Execute);
}
catch (Exception ex)
{
Console.Error.WriteLineAsync(ex.ToString());
throw;
}
void Execute()
{
string toBeWritten = GetString();
try
{
OutputHelperAppendedToEventArgs e = new OutputHelperAppendedToEventArgs(toBeWritten);
_helper.WriteLine(toBeWritten);
OnTextAppended(e);
}
catch (Exception e)
{
Console.Error.WriteLineAsync(e.ToString());
throw;
}
}
string GetString()
{
if (format == null)
{
return(string.Empty);
}
if (args == null)
{
return(format);
}
try
{
return(string.Format(format, args));
}
catch (FormatException ex)
{
return($"The format string [{format}] threw a format exception: [{ex}].");
}
}
}
/// <summary>
/// Event invocator for <see cref="TextAppended"/> <see langword="event"/>
/// </summary>
/// <param name="e">event arguments</param>
protected virtual void OnTextAppended(OutputHelperAppendedToEventArgs e)
{
if (e != null)
{
try
{
_outputHelperExecutor.EnqueueAction(() => TextAppended?.Invoke(this, e));
}
catch (Exception exception)
{
Console.WriteLine(exception);
throw;
}
}
}