🔥🧑‍💻🔥 TP2-2

src/Customer.java

@@ -2,13 +2,11 @@ public class Customer implements Runnable {
     private final PastryShop shop;
 
     public Customer(PastryShop shop) {
-        System.out.println("I'm hungry");
         this.shop = shop;
     }
 
     @Override
     public void run() {
-        System.out.println("customer running...");
         shop.get();
     }
 }

src/Main.java

@@ -1,16 +1,21 @@
 public class Main {
     public static void main(String[] args) {
-        PastryShop shop = new PastryShop();
+        boolean isFair = false;
+        PastryShop shop = new PastryShop(20, isFair);
 
-        Thread producer1 = new Thread(new PastryChef(shop));
-        Thread consumer1 = new Thread(new Customer(shop));
-        Thread consumer2 = new Thread(new Customer(shop));
-        Thread consumer3 = new Thread(new Customer(shop));
+        new Thread(new PastryChef(shop)).start();
+        new Thread(new PastryChef(shop)).start();
+        new Thread(new PastryChef(shop)).start();
 
-        producer1.start();
-        consumer1.start();
-        consumer2.start();
-        consumer3.start();
+        int c = 1;
+        while(c++ < 110) {
+            new Thread(new Customer(shop)).start();
+        }
+
+        new Thread(new PastryChef(shop)).start();
+        new Thread(new PastryChef(shop)).start();
+
+        System.out.println(c + " customers made");
 
     }
 }

src/PastryChef.java

@@ -2,13 +2,11 @@ public class PastryChef implements Runnable {
     private final PastryShop shop;
 
     public PastryChef(PastryShop shop) {
-        System.out.println("I'm a chef");
         this.shop = shop;
     }
 
     @Override
     public void run() {
-        System.out.println("chef running...");
         shop.put(new Pastry());
     }
 }

src/PastryShop.java

@@ -1,53 +1,26 @@
-import java.util.ArrayList;
-import java.util.Arrays;
+import java.util.concurrent.ArrayBlockingQueue;
 
-public class PastryShop extends ArrayList<Pastry> {
-    private static final int MAX_STOCK_SIZE = 20;
+public class PastryShop extends ArrayBlockingQueue<Pastry> {
 
-    public synchronized void put(Pastry pastry) {
-        while (getStock() == MAX_STOCK_SIZE) {
-            try {
-                System.out.println(getStock() + " pastries, producer blocked");
-                this.wait();
-            } catch (InterruptedException ex) {
-                // TODO what else can we do here?
-                System.err.println(Arrays.toString(ex.getStackTrace()));
-            }
-        }
-        while (getStock() < MAX_STOCK_SIZE) {
-            this.add(pastry);
-            System.out.println("A Pastry was put in the shop -- " + getStock() + " remaining");
+    public PastryShop(int capacity, boolean isFair) {
+        super(capacity, isFair);
+    }
 
-            this.notify();
+    public void put(Pastry pastry) {
+        while (this.offer(pastry)) { // fills up to max (offer -> false when full)
+            System.out.println("+");
         }
     }
 
-    public synchronized Pastry get() {
-        while (getStock() == 0) {
-            try {
-                System.out.println(getStock() + " pastries, consumer blocked");
-                this.wait();
-            } catch (InterruptedException ex) {
-                // TODO what else can we do here?
-                System.err.println(Arrays.toString(ex.getStackTrace()));
-            }
-
+    public Pastry get() {
+        Pastry res = null;
+        try {
+            res = this.take();
+        } catch (InterruptedException e) {
+            e.printStackTrace();
+            // trust the process to get back on track on its own..?
         }
-
-        Pastry res = this.get(0);
-        this.remove(res);
-        System.out.println("A Pastry was got from the shop -- " + getStock() + " remaining");
-
-        this.notify();
-
+        System.out.println("-");
         return res;
     }
-
-    public int getStock() {
-        return this.size();
-    }
-
-    public synchronized void prime() {
-        this.notify();
-    }
 }