public void LinkCandidate(
ITargetHook <T> target,
DataflowLinkOptions options = null,
Predicate <T> predicate = null)
{
if (!BlockInfo.IsSourceBlock)
{
throw new Exception("Only source block can linked candidates");
}
var candidate = new LinkCandidateInformation <T>(_visitor, this, target, options, predicate);
_visitor.AddLinkCandidate(candidate);
}
/// <summary>
/// Links the source to the specified target
/// </summary>
/// <param name="target">The target.</param>
/// <param name="linkOptions">The link options.</param>
/// <param name="predicate">The predicate.</param>
/// <returns></returns>
public IDisposable LinkTo(
ITargetBlock <T> target,
DataflowLinkOptions linkOptions,
Predicate <T> predicate)
{
if (!BlockInfo.IsSourceBlock)
{
throw new Exception("Only source block can linked to");
}
var targetHook = target as ITargetHook <T>;
LinkCandidateInformation <T> candidate = null;
if (targetHook != null)
{
candidate = new LinkCandidateInformation <T>(_visitor, this, targetHook, linkOptions, predicate);
}
var hook = new LinkHook <T>(this, target, linkOptions, _visitor, predicate, candidate);
_visitor.AddLink(hook.LinkInfo);
return(hook);
}
public LinkHook(
ISourceHook <T> source,
ITargetBlock <T> target,
DataflowLinkOptions linkOptions,
DataflowVisitor visitor,
Predicate <T> predicate = null,
LinkCandidateInformation <T> candidate = null)
{
_target = target;
var targetHook = target as ITargetHook <T>;
if (targetHook != null)
{
_targetName = targetHook.BlockInfo.Name;
_targetInfo = targetHook.BlockInfo;
}
_source = source;
_candidate = candidate;
if (candidate != null)
{
LinkInfo = new LinkToInformation(candidate.Connector, linkOptions, UnLink);
}
if (predicate == null)
{
_disposal = _source.InternalSource.LinkTo(this, linkOptions);
}
else
{
_disposal = DataflowBlock.LinkTo(_source.InternalSource, this, linkOptions, predicate);
}
_visitor = visitor;
}
