Throw FileStorageException and handle in ResponseEntityExceptionHandler

src/main/java/org/radarbase/appserver/exception/FileStorageException.java

@@ -0,0 +1,13 @@
+package org.radarbase.appserver.exception;
+
+public class FileStorageException extends RuntimeException {
+    private static final long serialVersionUID = -793674245766939L;
+
+    public FileStorageException(String message) {
+        super(message);
+    }
+
+    public FileStorageException(String message, Object object) {
+        super(message + " " + object.toString());
+    }
+}

src/main/java/org/radarbase/appserver/exception/handler/ResponseEntityExceptionHandler.java

@@ -64,6 +64,11 @@ public final ResponseEntity<ErrorDetails> handleInvalidUserDetailsException(Exce
         return handleEntityWithCause(ex, request);
     }
 
+    @ExceptionHandler(FileStorageException.class)
+    public final ResponseEntity<ErrorDetails> handleFileStorageException(Exception ex, WebRequest request) {
+        return handleEntityWithCause(ex, request);
+    }
+
     public ResponseEntity<ErrorDetails> handleEntityWithCause(Exception ex, WebRequest request) {
         String cause = ex.getCause() != null ? ex.getCause().getMessage() : null;
         HttpStatus status = ex.getClass().getAnnotation(ResponseStatus.class).value();

src/main/java/org/radarbase/appserver/service/storage/S3StorageService.java

@@ -21,6 +21,7 @@
 import io.minio.PutObjectArgs;
 import lombok.extern.slf4j.Slf4j;
 import org.radarbase.appserver.config.S3StorageProperties;
+import org.radarbase.appserver.exception.FileStorageException;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnExpression;
 import org.springframework.stereotype.Service;
@@ -62,7 +63,7 @@ public String store(MultipartFile file, String projectId, String subjectId, Stri
                 .stream(file.getInputStream(), file.getSize(), -1)
                 .build());
         } catch (Exception e) {
-            throw new RuntimeException("Could not store file", e);
+            throw new FileStorageException("There was a problem storing the file on the object storage", e);
         }
         return filePath.getFullPath();
     }