/// <summary>
/// Runs pipeline's processors one by one in an order
/// they are returned from <see cref="IPipeline.GetProcessors"/>.
/// </summary>
/// <typeparam name="TArgs">
/// Type of the arguments used in each processors of the pipeline.
/// </typeparam>
/// <param name="pipeline">
/// The pipeline which processors should be executed.
/// </param>
/// <param name="args">
/// The arguments that has to be passed to each processor
/// of the executed pipeline.
/// </param>
/// <returns>
/// Returns a promise of the pipeline execution.
/// </returns>
public virtual async Task Run(IPipeline pipeline, Bag bag)
{
if (pipeline.HasNoValue())
{
bag.Debug("Cannot run the pipeline because its value is null.");
return;
}
PipelineInfo pipelineInfo = null;
if (OnPipelineStart != null || OnPipelineEnd != null)
{
pipelineInfo = new PipelineInfo()
{
Context = bag, Pipeline = pipeline
};
}
if (OnPipelineStart != null)
{
OnPipelineStart(this, pipelineInfo);
}
var processors = pipeline.GetProcessors();
if (bag.Debug)
{
var pipelineName = pipeline.Name();
var description = pipeline.Description();
if (description.HasValue())
{
bag.Debug("Running pipeline [{0}]. Pipeline is {1}".FormatWith(pipelineName, description.ToLower()));
}
else
{
bag.Debug("Running pipeline [{0}].".FormatWith(pipelineName));
}
await Run(processors, bag).ConfigureAwait(false);
bag.Debug("Completed pipeline [{0}].".FormatWith(pipelineName));
}
else
{
await Run(processors, bag).ConfigureAwait(false);
}
if (OnPipelineEnd != null)
{
OnPipelineEnd(this, pipelineInfo);
}
}