java HW 7.1

Posted 2021-05-08

package com.gmail.vhrushyn;

public class Ship implements Runnable {

	int staff;
	Port port;
	String name;

	public Ship() {
		super();
		staff = 10;
	}

	public Ship(Port port, String name) {
		super();
		this.port = port;
		this.staff = 10;
		this.name = name;
		System.out.println("Ship " + name + " created");
	}

	public int getStaff() {
		return staff;
	}

	public void setStaff(int staff) {
		this.staff = staff;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	private void unload() {
		Dock dock = port.getDock();
	//	if(!dock.isAvailable()) {
	//		try {
	//			Thread.sleep(500);
	//		} catch (InterruptedException e) {
	//			// TODO Auto-generated catch block
	//			e.printStackTrace();
	//		}
	//	}
		System.out.println(name + " going to " + dock.getName());
		dock.setAvailable(false);

		System.out.println(name + " started unloading to " + dock.getName()+" ...");

		int loadedStaff = staff;
		for (int i = 0; i < staff; i++) {

			loadedStaff -= 1;
			dock.setStaff(dock.getStaff() + 1);
			try {
				Thread.sleep(500);
			} catch (InterruptedException e) {

				e.printStackTrace();
			}
			System.out.print("[=]");
		}
		System.out.println(name + " is unloaded to " + dock.getName());
		System.out.println(dock.getName()+" is free now");
		staff = loadedStaff;
		dock.setAvailable(true);

	}

	@Override
	public void run() {

		unload();

	}

}

package com.gmail.vhrushyn;

public class Port {

	Dock dockOne;
	Dock dockTwo;

	public Port() {
		super();

		dockOne = new Dock("First dock");
		dockTwo = new Dock("Second dock");
	}

	public synchronized Dock getDock() {
		try {
			Thread.sleep(50);
		} catch (InterruptedException e1) {
			// TODO Auto-generated catch block
			e1.printStackTrace();
		}
		while (true) {
			if (dockOne.isAvailable() || dockTwo.isAvailable()) {
				return chooseDock();
			} else {
				try {
					
					Thread.sleep(1);
				} catch (InterruptedException e) {

					e.printStackTrace();
				}
				
			}

		}

	}

	private Dock chooseDock() {

		Dock dock = null;

		if (dockOne.isAvailable()) {
			dock = dockOne;
			return dock;
		} else if (dockTwo.isAvailable()) {
			dock = dockTwo;
		}

		return dock;
	}

}

package com.gmail.vhrushyn;

public class Main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		
		
		
		Port port = new Port();
				
		Thread tOne = new Thread(new Ship(port, "Calipso"));
		Thread tTwo = new Thread(new Ship(port, "Argo"));
		Thread tThree = new Thread(new Ship(port, "Duncan"));
	//	Thread tFour = new Thread(new Ship(port, "Kyiv"));
	//	Thread tFive = new Thread(new Ship(port, "Odesa"));
		
		tOne.start();		
		tTwo.start();		
		tThree.start();
	//	tFour.start();
	//	tFive.start();
		
		
		try {
			tOne.join();
			tTwo.join();
			tThree.join();
	//		tFour.join();
	//		tFive.join();
		} catch (InterruptedException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
		
		
		System.out.println(port.dockOne.getStaff()+" staff in "+port.dockOne.getName());
		System.out.println(port.dockTwo.getStaff()+" staff in "+port.dockTwo.getName());

	} 

}

package com.gmail.vhrushyn;

public class Dock {
	
	private int staff;
	private boolean available;
	private String name;
	
	public Dock() {
		super();
		this.staff = 0;
		this.available = true;
	}
	
	public Dock(String name) {
		super();
		this.name = name;
		this.staff = 0;
		this.available = true;
		System.out.println(name+" created");
	}

	public int getStaff() {
		return staff;
	}

	public void setStaff(int staff) {
		this.staff = staff;
	}

	public boolean isAvailable() {
		return available;
	}

	public void setAvailable(boolean available) {
		this.available = available;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}
	
	
	
	
	
	
	

}