Lab 2 – Гараев Раиль

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.

build.gradle.kts

@@ -10,6 +10,9 @@ repositories {
 }
 
 dependencies {
+    compileOnly("org.projectlombok:lombok:1.18.42")
+    annotationProcessor("org.projectlombok:lombok:1.18.42")
+
     testImplementation(platform("org.junit:junit-bom:5.10.0"))
     testImplementation("org.junit.jupiter:junit-jupiter")
     testRuntimeOnly("org.junit.platform:junit-platform-launcher")

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

@@ -1,17 +1,96 @@
 package org.example;
 
+import java.lang.reflect.Field;
+import java.lang.reflect.ParameterizedType;
+import java.lang.reflect.Type;
 
-import org.example.classes.Example;
+import org.example.classes.*;
 import org.example.generator.Generator;
 
 public class GenerateExample {
-    public static void main(String[] args) {
+    public static void main(String[] args) throws NoSuchFieldException {
         var gen = new Generator();
+
+        System.out.println("=== Testing Generator ===");
+
+        try {
+            System.out.println("\n1. Generating Example:");
+            Object example = gen.generateValueOfType(Example.class);
+            System.out.println("Generated: " + example);
+        } catch (Exception e) {
+            System.err.println("Error generating Example: " + e.getMessage());
+        }
+
         try {
-            Object generated = gen.generateValueOfType(Example.class);
-            System.out.println(generated);
-        } catch (Throwable e) {
-            throw new RuntimeException(e);
+            System.out.println("\n2. Generating Shape:");
+            Object shape = gen.generateValueOfType(Shape.class);
+            System.out.println("Generated: " + shape);
+            if (shape instanceof Shape s) {
+                System.out.println("Area: " + s.getArea());
+                System.out.println("Perimeter: " + s.getPerimeter());
+            }
+        } catch (Exception e) {
+            System.err.println("Error generating Shape: " + e.getMessage());
+        }
+
+        try {
+            System.out.println("\n3. Generating Product:");
+            Object product = gen.generateValueOfType(Product.class);
+            System.out.println("Generated: " + product);
+        } catch (Exception e) {
+            System.err.println("Error generating Product: " + e.getMessage());
+        }
+
+        try {
+            System.out.println("\n4. Generating Rectangle:");
+            Object rectangle = gen.generateValueOfType(Rectangle.class);
+            System.out.println("Generated: " + rectangle);
+            if (rectangle instanceof Rectangle r) {
+                System.out.println("Area: " + r.getArea());
+                System.out.println("Perimeter: " + r.getPerimeter());
+            }
+        } catch (Exception e) {
+            System.err.println("Error generating Rectangle: " + e.getMessage());
+        }
+
+        try {
+            System.out.println("\n5. Generating Triangle:");
+            Object triangle = gen.generateValueOfType(Triangle.class);
+            System.out.println("Generated: " + triangle);
+            if (triangle instanceof Triangle t) {
+                System.out.println("Area: " + t.getArea());
+                System.out.println("Perimeter: " + t.getPerimeter());
+            }
+        } catch (Exception e) {
+            System.err.println("Error generating Triangle: " + e.getMessage());
+        }
+
+        try {
+            System.out.println("\n6. Generating Cart:");
+            Object cart = gen.generateValueOfType(Cart.class);
+            System.out.println("Generated: " + cart);
+        } catch (Exception e) {
+            System.err.println("Error generating Cart: " + e.getMessage());
+        }
+
+        try {
+            System.out.println("\n7. Generating BinaryTreeNode:");
+            Object node = gen.generateValueOfType(BinaryTreeNode.class);
+            System.out.println("Generated: " + node);
+        } catch (Exception e) {
+            System.err.println("Error generating BinaryTreeNode: " + e.getMessage());
+        }
+
+        Field items = Cart.class.getDeclaredField("items");
+        Type genericType = items.getGenericType();
+        if (genericType instanceof ParameterizedType pType) {
+            Type[] actualTypeArguments = pType.getActualTypeArguments();
+            for (Type type : actualTypeArguments) {
+                if (type instanceof Class<?> elementClass) {
+                    System.out.println("Declared element type: " + elementClass.getName());
+                    // Output: Declared element type: java.lang.String
+                }
+            }
         }
     }
 }

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

@@ -1,5 +1,14 @@
 package org.example.classes;
 
+import lombok.Getter;
+import lombok.Setter;
+import lombok.ToString;
+import org.example.generator.Generatable;
+
+@Getter
+@Setter
+@ToString
+@Generatable
 public class BinaryTreeNode {
     private Integer data;
     private BinaryTreeNode left;
@@ -10,24 +19,4 @@ public BinaryTreeNode(Integer data, BinaryTreeNode left, BinaryTreeNode right) {
         this.left = left;
         this.right = right;
     }
-
-    public Integer getData() {
-        return data;
-    }
-
-    public BinaryTreeNode getLeft() {
-        return left;
-    }
-
-    public BinaryTreeNode getRight() {
-        return right;
-    }
-
-    public void setLeft(BinaryTreeNode left) {
-        this.left = left;
-    }
-
-    public void setRight(BinaryTreeNode right) {
-        this.right = right;
-    }
 }

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

@@ -2,6 +2,11 @@
 
 import java.util.List;
 
+import lombok.ToString;
+import org.example.generator.Generatable;
+
+@ToString
+@Generatable
 public class Cart {
     private List<Product> items;
 

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

@@ -1,14 +1,17 @@
 package org.example.classes;
 
+import java.util.Map;
+
+import lombok.ToString;
+import org.example.generator.Generatable;
+
+@ToString
+@Generatable
 public class Example {
     int i;
+    public Map<Cart, Product> myMap;
 
     public Example(int i) {
         this.i = i;
     }
-
-    @Override
-    public String toString() {
-        return "Example(" + i + ")";
-    }
 }

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

@@ -1,5 +1,10 @@
 package org.example.classes;
 
+import lombok.ToString;
+import org.example.generator.Generatable;
+
+@ToString
+@Generatable
 public class Product {
     private String name;
     private double price;
@@ -40,9 +45,4 @@ public boolean equals(Object obj) {
         return super.equals(obj);
     }
 
-    @Override
-    public String toString() {
-        return super.toString();
-    }
-
 }

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

@@ -1,5 +1,10 @@
 package org.example.classes;
 
+import lombok.ToString;
+import org.example.generator.Generatable;
+
+@ToString
+@Generatable
 public class Rectangle implements Shape {
     private double length;
     private double width;

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

@@ -1,5 +1,10 @@
 package org.example.classes;
 
+import lombok.ToString;
+import org.example.generator.Generatable;
+
+@ToString
+@Generatable
 public class Triangle implements Shape {
     private double sideA;
     private double sideB;

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

@@ -0,0 +1,11 @@
+package org.example.generator;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Retention(RetentionPolicy.RUNTIME)
+@Target(ElementType.TYPE)
+public @interface Generatable {
+}