[api] Removed status code and added exceptions.

apps/filebrowser/src/filebrowser/api.py

@@ -27,7 +27,6 @@
 from desktop.lib.i18n import smart_unicode
 from desktop.lib.fs.ozone.ofs import get_ofs_home_directory
 from desktop.lib.fs.gc.gs import get_gs_home_directory
-from hadoop.fs.exceptions import WebHdfsException
 
 from azure.abfs.__init__ import get_home_dir_for_abfs
 from aws.s3.s3fs import get_s3_home_directory
@@ -136,15 +135,20 @@ def rename(request):
 @error_handler
 def content_summary(request, path):
   path = _normalize_path(path)
+  response = {'summary': None}
+
+  if not path:
+    raise Exception(_('Path parameter is required to fetch content summary'))
+
+  if not request.fs.exists(path):
+    return JsonResponse(response, status=404)
 
-  response = {'status': -1, 'summary': None}
   try:
     stats = request.fs.get_content_summary(path)
     replication_factor = request.fs.stats(path)['replication']
     stats.summary.update({'replication': replication_factor})
-    response['status'] = 0
     response['summary'] = stats.summary
-  except WebHdfsException as e:
+  except Exception as e:
     raise Exception(_('Failed to fetch content summary for "%s". ') % path)
 
   return JsonResponse(response)