feat(product): add image retrieval functionality for products

Implement a new endpoint to return product images by file name.
This allows users to access images associated with products, enhancing
the product display capabilities in the application.

Author: Ignorancio

src/main/java/com/example/store/product/application/ProductServiceImplV2.java

@@ -3,10 +3,16 @@
 import com.example.store.product.domain.Product;
 import com.example.store.product.infrastructure.repository.implementation.ProductRepositoryImplV2;
 import lombok.RequiredArgsConstructor;
+import org.springframework.core.io.Resource;
+import org.springframework.core.io.UrlResource;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
 import org.springframework.stereotype.Service;
 
+import java.net.MalformedURLException;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
 @Service
 @RequiredArgsConstructor
 public class ProductServiceImplV2 {
@@ -20,4 +26,16 @@ public Page<Product> findAll(Pageable pageable) {
     public Page<Product> findByNameContaining(String name, Pageable pageable) {
         return productRepositoryImplV2.findAllByProductNameContaining(name, pageable);
     }
+
+    public Resource findImageByName(String name) {
+        Path imagePath = Paths.get("public/images", name);
+        if (!imagePath.toFile().exists()) {
+            throw new IllegalArgumentException("Image not found: " + name);
+        }
+        try {
+            return new UrlResource(imagePath.toUri());
+        } catch (MalformedURLException e) {
+            throw new IllegalArgumentException("Error retrieving image: " + name, e);
+        }
+    }
 }

src/main/java/com/example/store/product/infrastructure/ProductControllerImplV2.java

@@ -4,15 +4,13 @@
 import com.example.store.product.domain.Product;
 import io.swagger.v3.oas.annotations.Operation;
 import lombok.RequiredArgsConstructor;
+import org.springframework.core.io.Resource;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
 import org.springframework.data.web.PageableDefault;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RequestParam;
-import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.bind.annotation.*;
 
 @RestController
 @RequestMapping("/api/v2/products")
@@ -32,4 +30,10 @@ public ResponseEntity<Page<Product>> findAll(@PageableDefault Pageable pageable)
     public ResponseEntity<Page<Product>> findByNameContaining(@RequestParam String name, @PageableDefault Pageable pageable) {
         return ResponseEntity.status(HttpStatus.OK).body(productService.findByNameContaining(name, pageable));
     }
+
+    @GetMapping("/images/{fileName:.+}")
+    @Operation(summary = "Return a product image by file name")
+    public ResponseEntity<Resource> getImage(@PathVariable String fileName) {
+        return ResponseEntity.status(HttpStatus.OK).body(productService.findImageByName(fileName));
+    }
 }