library/cpp/logger/backend_creator.cpp


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#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); 
}