🎉 Init (#16903)

Signed-off-by: mgorsk1 <gorskimariusz13@gmail.com>

ingestion/src/metadata/utils/fqn.py

@@ -290,16 +290,33 @@ def _(_: Optional[OpenMetadata], *, table_fqn: str) -> str:
 
 @fqn_build_registry.add(Topic)
 def _(
-    _: Optional[OpenMetadata],  # ES Index not necessary for Topic FQN building
+    metadata: Optional[OpenMetadata],
     *,
     service_name: str,
     topic_name: str,
-) -> str:
+    skip_es_search: bool = True,
-    if not service_name or not topic_name:
+) -> Optional[str]:
+    entity: Optional[Topic] = None
+
+    if not skip_es_search:
+        entity = search_topic_from_es(
+            metadata=metadata, service_name=service_name, topic_name=topic_name
+        )
+
+    # if entity not found in ES proceed to build FQN with database_name and schema_name
+    if not entity and service_name and topic_name:
+        fqn = _build(service_name, topic_name)
+        return fqn
+
+    if entity:
+        return str(entity.fullyQualifiedName.root)
+
+    if not all([service_name, topic_name]):
         raise FQNBuildingException(
             f"Args should be informed, but got service=`{service_name}`, topic=`{topic_name}``"
         )
-    return _build(service_name, topic_name)
+
+    return None
 
 
 @fqn_build_registry.add(Container)
@@ -681,6 +698,34 @@ def search_database_from_es(
     )
 
 
+def search_topic_from_es(
+    metadata: OpenMetadata,
+    topic_name: str,
+    service_name: Optional[str],
+    fields: Optional[str] = None,
+):
+    """
+    Search Topic entity from ES
+    """
+
+    if not topic_name:
+        raise FQNBuildingException(
+            f"Topic Name should be informed, but got topic=`{topic_name}`"
+        )
+
+    fqn_search_string = _build(service_name or "*", topic_name)
+
+    es_result = metadata.es_search_from_fqn(
+        entity_type=Topic,
+        fqn_search_string=fqn_search_string,
+        fields=fields,
+    )
+
+    return get_entity_from_es_result(
+        entity_list=es_result, fetch_multiple_entities=False
+    )
+
+
 def get_query_checksum(query: str) -> str:
     """
     Prepare the query checksum from its string representation.