IStartableSupport.java

package org.sef4j.core.util;

import java.util.function.Supplier;

public interface IStartableSupport {

	public boolean isStarted();

	public void start();

	public void stop();

	
	/**
	 * Functional helper class implementation for IStartableSupport
	 * delegate to start/stop runnable functions
	 */
	public static class StartStopMethods implements IStartableSupport {
		private final Supplier<Boolean> isStartedSupplier;
		private final Runnable startRunnable;
		private final Runnable stopRunnable;
		
		public StartStopMethods(Supplier<Boolean> isStartedSupplier, Runnable startRunnable, Runnable stopRunnable) {
			this.isStartedSupplier = isStartedSupplier;
			this.startRunnable = startRunnable;
			this.stopRunnable = stopRunnable;
		}
		
		@Override
		public boolean isStarted() {
			return isStartedSupplier.get();
		}


		@Override
		public void start() {
			startRunnable.run();
		}
		@Override
		public void stop() {
			stopRunnable.run();
		}
		
	}
}