ClickHouse/libs/libloggers/loggers/ExtendedLogChannel.h
2019-08-09 23:58:16 +03:00

41 lines
872 B
C++

#pragma once
#include <string>
namespace Poco
{
class Message;
}
namespace DB
{
/// Poco::Message with more ClickHouse-specific info
/// NOTE: Poco::Message is not polymorphic class, so we can't use inheritance in couple with dynamic_cast<>()
class ExtendedLogMessage
{
public:
explicit ExtendedLogMessage(const Poco::Message & base_) : base(base_) {}
/// Attach additional data to the message
static ExtendedLogMessage getFrom(const Poco::Message & base);
// Do not copy for efficiency reasons
const Poco::Message & base;
uint32_t time_seconds = 0;
uint32_t time_microseconds = 0;
uint32_t thread_number = 0;
std::string query_id;
};
/// Interface extension of Poco::Channel
class ExtendedLogChannel
{
public:
virtual void logExtended(const ExtendedLogMessage & msg) = 0;
virtual ~ExtendedLogChannel() = default;
};
}