Kochnev Roman lab2

README.md

@@ -1,3 +1,4 @@
+[![Review Assignment Due Date](https://classroom.github.com/assets/deadline-readme-button-22041afd0340ce965d47ae6ef1cefeee28c7c493a6346c4f15d667ab976d596c.svg)](https://classroom.github.com/a/4ISSpVK4)
 **Java reflection** 
 
 Ваша задача --- написать генератор экземпляров произвольных классов.

src/main/java/org/example/GenerateExample.java

@@ -1,15 +1,24 @@
 package org.example;
 
-
-import org.example.classes.Example;
+import org.example.classes.*;
 import org.example.generator.Generator;
 
 public class GenerateExample {
     public static void main(String[] args) {
-        var gen = new Generator();
+        var gen = new Generator(3);
         try {
-            Object generated = gen.generateValueOfType(Example.class);
-            System.out.println(generated);
+            System.out.println(gen.generateValueOfType(Example.class));
+
+            Shape shape = gen.generateValueOfType(Shape.class);
+            System.out.println("shape: " + shape.getClass().getSimpleName()
+                    + " area=" + shape.getArea() + " per=" + shape.getPerimeter());
+
+            Cart cart = gen.generateValueOfType(Cart.class);
+            System.out.println("cart items: " + (cart.getItems() == null ? 0 : cart.getItems().size()));
+
+            BinaryTreeNode root = gen.generateValueOfType(BinaryTreeNode.class);
+            System.out.println("tree root data: " + (root == null ? null : root.getData()));
+
         } catch (Throwable e) {
             throw new RuntimeException(e);
         }

src/main/java/org/example/classes/BinaryTreeNode.java

@@ -1,5 +1,8 @@
 package org.example.classes;
 
+import org.example.generator.Generatable;
+
+@Generatable
 public class BinaryTreeNode {
     private Integer data;
     private BinaryTreeNode left;

src/main/java/org/example/classes/Cart.java

@@ -1,7 +1,10 @@
 package org.example.classes;
 
+import org.example.generator.Generatable;
+
 import java.util.List;
 
+@Generatable
 public class Cart {
     private List<Product> items;
 

src/main/java/org/example/classes/Example.java

@@ -1,5 +1,8 @@
 package org.example.classes;
 
+import org.example.generator.Generatable;
+
+@Generatable
 public class Example {
     int i;
 

src/main/java/org/example/classes/Product.java

@@ -1,5 +1,8 @@
 package org.example.classes;
 
+import org.example.generator.Generatable;
+
+@Generatable
 public class Product {
     private String name;
     private double price;

src/main/java/org/example/classes/Rectangle.java

@@ -1,5 +1,8 @@
 package org.example.classes;
 
+import org.example.generator.Generatable;
+
+@Generatable
 public class Rectangle implements Shape {
     private double length;
     private double width;

src/main/java/org/example/classes/Shape.java

@@ -1,6 +1,9 @@
 package org.example.classes;
 
+import org.example.generator.Generatable;
+
+@Generatable(implementations = { Rectangle.class, Triangle.class })
 public interface Shape {
     double getArea();
     double getPerimeter();
-}
+}

src/main/java/org/example/classes/Triangle.java

@@ -1,5 +1,8 @@
 package org.example.classes;
 
+import org.example.generator.Generatable;
+
+@Generatable
 public class Triangle implements Shape {
     private double sideA;
     private double sideB;

src/main/java/org/example/generator/Generatable.java

@@ -0,0 +1,10 @@
+package org.example.generator;
+
+import java.lang.annotation.*;
+
+@Retention(RetentionPolicy.RUNTIME)
+@Target(ElementType.TYPE)
+public @interface Generatable {
+    Class<?>[] implementations() default {};
+    int maxDepth() default 0;
+}