private boolean isTapActive(String tapChannelName) {
		Assert.state(taps != null, "tap cache not started");
		List<ChildData> currentTaps = taps.getCurrentData();
		for (ChildData data : currentTaps) {
			// example path: /taps/stream:ticktock.time.0
			if (buildTapChannelNameFromPath(data.getPath()).equals(tapChannelName)) {
				return true;
			}
		}
		return false;
	}
Checks whether the provided tap channel name has one or more active subscribers.

@param tapChannelName the tap channel to check

@return {@code true} if the tap does have one or more active subscribers
spring-xd-dirt/src/main/java/org/springframework/xd/dirt/plugins/AbstractMessageBusBinderPlugin.java