Update CommentAndAttachmentController.java

Author: krtksharma

src/main/java/com/cognizant/controller/CommentAndAttachmentController.java

@@ -49,7 +49,7 @@ public class CommentAndAttachmentController {
 
     // Where uploaded files are saved on disk
     // Set this in application.properties: app.upload.dir=./uploads
-    @Value("${app.upload.dir:./uploads}")
+    @Value("${app.upload.dir:/home/uploads}")
     private String uploadDir;
 
     public CommentAndAttachmentController(
@@ -193,7 +193,9 @@ public ResponseEntity<?> uploadAttachment(
         // 4. Save file to disk
         try {
             Path uploadPath = Paths.get(uploadDir).toAbsolutePath().normalize();
-            Files.createDirectories(uploadPath);
+            if (!Files.exists(uploadPath)) {
+                Files.createDirectories(uploadPath);
+            }
 
             // Generate a unique filename to avoid collisions
             String original   = file.getOriginalFilename();
@@ -232,7 +234,7 @@ public ResponseEntity<Resource> downloadAttachment(@PathVariable String storedNa
             Path filePath = Paths.get(uploadDir).toAbsolutePath().normalize().resolve(storedName);
             Resource resource = new UrlResource(filePath.toUri());
 
-            if (!resource.exists()) {
+            if (!resource.exists() || !resource.isReadable()) {
                 return ResponseEntity.notFound().build();
             }