@Override
	public Message<?> receive(int timeout) {
		return sink.receive(timeout);
	}
Creates a stream to test a processing chain "p1 | p2 ... | pn" adding a {@link NamedChannelSink} and
{@link NamedChannelSource}.

@author David Turanski
spring-xd-dirt/src/main/java/org/springframework/xd/dirt/test/process/SingleNodeProcessingChain.java