Refactoring - Version stable

src/main/java/dev/lions/unionflow/server/exception/JsonProcessingExceptionMapper.java

@@ -0,0 +1,40 @@
+package dev.lions.unionflow.server.exception;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import jakarta.ws.rs.core.Response;
+import jakarta.ws.rs.ext.ExceptionMapper;
+import jakarta.ws.rs.ext.Provider;
+import lombok.extern.slf4j.Slf4j;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * Exception Mapper pour les erreurs de traitement JSON (parsing, format, etc.).
+ * Retourne un 400 Bad Request avec un message détaillé.
+ *
+ * @author UnionFlow Team
+ * @version 1.0
+ * @since 2026-03-19
+ */
+@Slf4j
+@Provider
+public class JsonProcessingExceptionMapper implements ExceptionMapper<JsonProcessingException> {
+
+    @Override
+    public Response toResponse(JsonProcessingException exception) {
+        log.warn("JSON processing error: {}", exception.getMessage());
+
+        Map<String, Object> errorBody = new HashMap<>();
+        errorBody.put("message", "Erreur de traitement JSON");
+        errorBody.put("details", exception.getOriginalMessage() != null
+                ? exception.getOriginalMessage()
+                : exception.getMessage());
+        errorBody.put("status", 400);
+        errorBody.put("timestamp", java.time.LocalDateTime.now().toString());
+
+        return Response.status(Response.Status.BAD_REQUEST)
+                .entity(errorBody)
+                .build();
+    }
+}