intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 34 insertions, 0 deletions

diff --git a/library/cpp/logger/composite_creator.cpp b/library/cpp/logger/composite_creator.cpp
new file mode 100644
index 0000000000..2064265766
--- /dev/null
+++ b/library/cpp/logger/composite_creator.cpp
@@ -0,0 +1,34 @@
+#include "composite_creator.h"
+#include "composite.h"
+#include "uninitialized_creator.h"
+
+THolder<TLogBackend> TCompositeBackendCreator::DoCreateLogBackend() const {
+    auto res = MakeHolder<TCompositeLogBackend>();
+    for (const auto& child : Children) {
+        res->AddLogBackend(child->CreateLogBackend());
+    }
+    return std::move(res);
+}
+
+
+TCompositeBackendCreator::TCompositeBackendCreator()
+    : TLogBackendCreatorBase("composite")
+{}
+
+bool TCompositeBackendCreator::Init(const IInitContext& ctx) {
+    for (const auto& child : ctx.GetChildren("SubLogger")) {
+        Children.emplace_back(MakeHolder<TLogBackendCreatorUninitialized>());
+        if (!Children.back()->Init(*child)) {
+            return false;
+        }
+    }
+    return true;
+}
+
+ILogBackendCreator::TFactory::TRegistrator<TCompositeBackendCreator> TCompositeBackendCreator::Registrar("composite");
+
+void TCompositeBackendCreator::DoToJson(NJson::TJsonValue& value) const {
+    for (const auto& child: Children) {
+        child->ToJson(value["SubLogger"].AppendValue(NJson::JSON_MAP));
+    }
+}