@Override
	public final boolean isRunning() {
		this.lifecycleLock.lock();
		try {
			return this.running;
		}
		finally {
			this.lifecycleLock.unlock();
		}
	}
Base implementation of Spring Integration {@code MessageHandler} handling {@code Message}.

@author Janne Valkealahti
extensions/spring-xd-extension-gpfdist/src/main/java/org/springframework/xd/greenplum/gpfdist/AbstractGPFDistMessageHandler.java