ClickHouse/libs/libloggers/loggers/Loggers.h

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#include <optional>
#include <string>
#include <Poco/AutoPtr.h>
#include <Poco/FileChannel.h>
#include <Poco/Util/Application.h>
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#include <Interpreters/TextLog.h>
#include "OwnSplitChannel.h"
namespace Poco::Util
{
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class AbstractConfiguration;
}
class Loggers
{
public:
void buildLoggers(Poco::Util::AbstractConfiguration & config, Poco::Logger & logger, const std::string & cmd_name = "");
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/// Close log files. On next log write files will be reopened.
void closeLogs(Poco::Logger & logger);
std::optional<size_t> getLayer() const
{
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return layer; /// layer setted in inheritor class BaseDaemonApplication.
}
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void setTextLog(std::shared_ptr<DB::TextLog> log);
protected:
std::optional<size_t> layer;
private:
Poco::AutoPtr<Poco::FileChannel> log_file;
Poco::AutoPtr<Poco::FileChannel> error_log_file;
Poco::AutoPtr<Poco::Channel> syslog_channel;
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/// Previous value of logger element in config. It is used to reinitialize loggers whenever the value changed.
std::string config_logger;
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std::weak_ptr<DB::TextLog> text_log;
Poco::AutoPtr<DB::OwnSplitChannel> split;
};