library/cpp/logger/uninitialized_creator.cpp


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#include "uninitialized_creator.h" 
#include "filter_creator.h" 
#include "thread_creator.h" 
#include "file_creator.h" 
#include "null_creator.h" 
#include <util/string/cast.h> 
 
THolder<TLogBackend> TLogBackendCreatorUninitialized::DoCreateLogBackend() const { 
    return Slave->CreateLogBackend(); 
} 
 
void TLogBackendCreatorUninitialized::InitCustom(const TString& type, ELogPriority priority, bool threaded) { 
    if (!type) { 
        Slave = MakeHolder<TNullLogBackendCreator>(); 
    } else if (TFactory::Has(type)) { 
        Slave = TFactory::MakeHolder(type); 
    } else { 
        Slave = MakeHolder<TFileLogBackendCreator>(type); 
    } 
 
    if (threaded) { 
        Slave = MakeHolder<TOwningThreadedLogBackendCreator>(std::move(Slave)); 
    } 
 
    if (priority != LOG_MAX_PRIORITY) { 
        Slave = MakeHolder<TFilteredBackendCreator>(std::move(Slave), priority); 
    } 
} 
 
bool TLogBackendCreatorUninitialized::Init(const IInitContext& ctx) { 
    auto type = ctx.GetOrElse("LoggerType", TString()); 
    bool threaded = ctx.GetOrElse("Threaded", false); 
    ELogPriority priority = LOG_MAX_PRIORITY; 
    TString prStr; 
    if (ctx.GetValue("LogLevel", prStr)) { 
        if (!TryFromString(prStr, priority)) { 
            priority = (ELogPriority)FromString<int>(prStr); 
        } 
    } 
    InitCustom(type, priority, threaded); 
    return Slave->Init(ctx); 
} 
 
 
void TLogBackendCreatorUninitialized::ToJson(NJson::TJsonValue& value) const { 
    Y_VERIFY(Slave, "Serialization off uninitialized LogBackendCreator"); 
    Slave->ToJson(value); 
} 
 
ILogBackendCreator::TFactory::TRegistrator<TLogBackendCreatorUninitialized> TLogBackendCreatorUninitialized::Registrar("");