intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 45 insertions, 0 deletions

diff --git a/library/cpp/logger/backend_creator.cpp b/library/cpp/logger/backend_creator.cpp
new file mode 100644
index 0000000000..ea430edb83
--- /dev/null
+++ b/library/cpp/logger/backend_creator.cpp
@@ -0,0 +1,45 @@
+#include "backend_creator.h"
+#include "stream.h"
+#include "uninitialized_creator.h"
+#include <util/system/yassert.h>
+#include <util/stream/debug.h>
+#include <util/stream/output.h>
+
+
+THolder<TLogBackend> ILogBackendCreator::CreateLogBackend() const {
+    try {
+        return DoCreateLogBackend();
+    } catch(...) {
+        Cdbg << "Warning: " << CurrentExceptionMessage() << ". Use stderr instead." << Endl;
+    }
+    return MakeHolder<TStreamLogBackend>(&Cerr);
+}
+
+bool ILogBackendCreator::Init(const IInitContext& /*ctx*/) {
+    return true;
+}
+
+
+NJson::TJsonValue ILogBackendCreator::AsJson() const {
+    NJson::TJsonValue json;
+    ToJson(json);
+    return json;
+}
+
+THolder<ILogBackendCreator> ILogBackendCreator::Create(const IInitContext& ctx) {
+    auto res = MakeHolder<TLogBackendCreatorUninitialized>();
+    if(!res->Init(ctx)) {
+        Cdbg << "Cannot init log backend creator";
+        return nullptr;
+    }
+    return res;
+}
+
+TLogBackendCreatorBase::TLogBackendCreatorBase(const TString& type)
+    : Type(type)
+{}
+
+void TLogBackendCreatorBase::ToJson(NJson::TJsonValue& value) const {
+    value["LoggerType"] = Type;
+    DoToJson(value);
+}