intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 25 insertions, 0 deletions

diff --git a/library/cpp/monlib/dynamic_counters/golovan_page.h b/library/cpp/monlib/dynamic_counters/golovan_page.h
new file mode 100644
index 0000000000..e1772c7734
--- /dev/null
+++ b/library/cpp/monlib/dynamic_counters/golovan_page.h
@@ -0,0 +1,25 @@
+#pragma once
+
+#include "counters.h"
+
+#include <library/cpp/monlib/service/pages/mon_page.h>
+
+#include <util/generic/ptr.h>
+
+#include <functional>
+
+// helper class to output json for Golovan.
+class TGolovanCountersPage: public NMonitoring::IMonPage {
+public:
+    using TOutputCallback = std::function<void()>;
+
+    const TIntrusivePtr<NMonitoring::TDynamicCounters> Counters;
+
+    TGolovanCountersPage(const TString& path, TIntrusivePtr<NMonitoring::TDynamicCounters> counters,
+                         TOutputCallback outputCallback = nullptr);
+
+    void Output(NMonitoring::IMonHttpRequest& request) override;
+
+private:
+    TOutputCallback OutputCallback;
+};