private boolean isTapEnabled() {
		boolean tapEnabled = false;
		String enableTap = this.moduleProperties.getProperty(ENABLE_TAP_PROP);
		if (enableTap != null) {
			tapEnabled = enableTap.equalsIgnoreCase(Boolean.TRUE.toString());
		}
		return tapEnabled;
	}
Check if the tap is enabled for this module's output.

@return boolean
spring-xd-dirt/src/main/java/org/springframework/xd/dirt/plugins/spark/streaming/MessageBusSender.java