//Linkd MY block to OHTER dataflow
protected void LinkBlockToFlow <T>(ISourceBlock <T> block, IDataflow <T> otherDataflow, Predicate <T> predicate = null)
{
if (!IsMyChild(block))
{
throw new InvalidOperationException(string.Format("{0} Cannot link block to flow as the output block is not my child.", this.FullName));
}
if (predicate == null)
{
block.LinkTo(otherDataflow.InputBlock);
}
else
{
block.LinkTo(otherDataflow.InputBlock, predicate);
}
otherDataflow.RegisterDependency(this);
//Make sure other dataflow also fails me
otherDataflow.Completion.ContinueWith(otherTask =>
{
if (this.Completion.IsCompleted)
{
return;
}
if (otherTask.IsFaulted)
{
LogHelper.Logger.InfoFormat("{0} Downstream dataflow faulted before I am done. Fault myself.", this.FullName);
this.Fault(new LinkedDataflowFailedException());
}
else if (otherTask.IsCanceled)
{
LogHelper.Logger.InfoFormat("{0} Downstream dataflow canceled before I am done. Cancel myself.", this.FullName);
this.Fault(new LinkedDataflowCanceledException());
}
});
}