From de2d12bd9915c037056b4884f3712309f989c3ce Mon Sep 17 00:00:00 2001
From: Sven Augustin <sven.augustin@psi.ch>
Date: Wed, 15 Oct 2025 12:12:29 +0200
Subject: [PATCH] added file switch as single operation

---
 dap/accumulator.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/dap/accumulator.py b/dap/accumulator.py
index 36459b2..47a1651 100644
--- a/dap/accumulator.py
+++ b/dap/accumulator.py
@@ -52,8 +52,7 @@ def accumulate(_accumulator_host, accumulator_port): #TODO: accumulator_host is
         if run_name != run_name_before:
             run_name_before = run_name
             fname_output = f"{OUTPUT_DIR_NAME}/{detector}/{run_name}.dap"
-            output_dap.close()
-            output_dap.open(fname_output)
+            output_dap.switch(fname_output)
 
         res_is_good_frame   = results.get("is_good_frame", -1)
         res_is_hit_frame    = results.get("is_hit_frame", False)
@@ -70,6 +69,10 @@ class FileHandler:
     def __init__(self):
         self.file = None
 
+    def switch(self, fname):
+        self.close()
+        self.open(fname)
+
     def open(self, fname):
         dname = os.path.dirname(fname)
         os.makedirs(dname, exist_ok=True)