Testing the Semaphore execution

SemaphoreTest.java

package br.com.ggdio.util.concurrent.test;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.atomic.AtomicInteger;

public class SemaphoreTest {
	
	private static Semaphore semaphore = new Semaphore();
	private static AtomicInteger count = new AtomicInteger(0);

	public static void main(String[] args) {
		ExecutorService threadPool = Executors.newFixedThreadPool(5);
		
		threadPool.submit(new Process());
		threadPool.submit(new Process());
		threadPool.submit(new Process());
		threadPool.submit(new Process());
		threadPool.submit(new Process());
		
		Executors.newSingleThreadExecutor().execute(new ProcessManager());
	}
	
	private static class ProcessManager implements Runnable {
		
		@Override
		public void run() {
			try {
				while(true) {
					Thread.sleep(10000);
					
					System.err.println("ThreadManager[name=" + Thread.currentThread().getName() + "] Setting red signal.");
					semaphore.setRedSignal();
					Thread.sleep(10000);
					
					System.err.println("ThreadManager[name=" + Thread.currentThread().getName() + "] Setting green signal.");
					semaphore.setGreenSignal();
				}
				
			} catch (InterruptedException e) { 
				System.out.println("ThreadManager[name=" + Thread.currentThread().getName() + "] Finished.");
				
			}
			
		}
	}
	
	
	private static class Process implements Runnable {
		
		@Override
		public void run() {
			try {
				while(true) {
					Sysout.print("Thread[name=" + Thread.currentThread().getName() + "] Running for the #" + count.incrementAndGet() + " time.");
					
					Thread.sleep(new Long(Math.round((Math.random() * 10000))));
				}
				
			} catch (InterruptedException e) { 
				System.out.println("Thread[name=" + Thread.currentThread().getName() + "] Finished.");
				
			}
			
		}
	}
	
	private static class Sysout {
		
		public static void print(String message) {
			semaphore.proceed(); // If it's red, then it will await for green signal
			
			System.out.println(message);
		}
		
	}
	
	
	
}