/// <summary>
/// This helper resolves a channel from the direction specified.
/// </summary>
/// <param name="cpipe">The pipeline.</param>
/// <param name="direction"></param>
/// <param name="throwIfChannelIsNull"></param>
/// <returns>The resolved channel or null if not resolved and throwIfChannelIsNull is false. Otherwise an exception will be raised.</returns>
public static Channel ToChannel(this IPipelineChannel cpipe, ChannelDirection direction, bool throwIfChannelIsNull = true)
{
Channel channel = null;
if (cpipe is IPipelineChannelBroadcast)
{
switch (direction)
{
case ChannelDirection.Incoming:
channel = ((IPipelineChannelBroadcast)cpipe).ChannelListener;
break;
case ChannelDirection.Outgoing:
channel = ((IPipelineChannelBroadcast)cpipe).ChannelSender;
break;
default:
throw new NotSupportedException($"ChannelDirection {direction} not supported in {nameof(CorePipelineExtensions)}/{nameof(ToChannel)}");
}
}
else
{
channel = cpipe.Channel;
}
if (channel == null && throwIfChannelIsNull)
{
throw new ArgumentNullException($"The pipe channel is null -> {direction}");
}
return(channel);
}
private static void AttachPriorityPartition <P>(IPipelineChannel pipeline, P config)
where P : PartitionConfig
{
if (pipeline is IPipelineChannelBroadcast)
{
throw new NotSupportedException("AttachPriorityPartition is not supported for broadcast channels.");
}
var channel = pipeline.Channel;
if (channel.Partitions == null)
{
channel.Partitions = new List <P>(new[] { config });
return;
}
var partitions = channel.Partitions as List <P>;
if (partitions == null)
{
throw new ChannelPartitionConfigCastException(pipeline.Channel.Id);
}
if (partitions.Select((p) => p.Priority).Contains(config.Priority))
{
throw new ChannelPartitionConfigExistsException(pipeline.Channel.Id, config.Priority);
}
partitions.Add(config);
}
