ClickHouse/programs/keeper/Keeper.h
Antonio Andelic bde2cf96b1 Better
2023-05-22 12:24:16 +00:00

76 lines
1.8 KiB
C++

#pragma once
#include <Server/IServer.h>
#include <Daemon/BaseDaemon.h>
namespace Poco
{
namespace Net
{
class ServerSocket;
}
}
namespace DB
{
namespace ErrorCodes
{
extern const int LOGICAL_ERROR;
}
/// standalone clickhouse-keeper server (replacement for ZooKeeper). Uses the same
/// config as clickhouse-server. Serves requests on TCP ports with or without
/// SSL using ZooKeeper protocol.
class Keeper : public BaseDaemon, public IServer
{
public:
using ServerApplication::run;
Poco::Util::LayeredConfiguration & config() const override
{
return BaseDaemon::config();
}
Poco::Logger & logger() const override
{
return BaseDaemon::logger();
}
bool isCancelled() const override
{
return BaseDaemon::isCancelled();
}
/// Returns global application's context.
ContextMutablePtr context() const override
{
throw Exception(ErrorCodes::LOGICAL_ERROR, "Cannot fetch context for Keeper");
}
void defineOptions(Poco::Util::OptionSet & _options) override;
protected:
void logRevision() const override;
void handleCustomArguments(const std::string & arg, const std::string & value);
int run() override;
void initialize(Application & self) override;
void uninitialize() override;
int main(const std::vector<std::string> & args) override;
std::string getDefaultConfigFileName() const override;
private:
Poco::Net::SocketAddress socketBindListen(Poco::Net::ServerSocket & socket, const std::string & host, UInt16 port, [[maybe_unused]] bool secure = false) const;
using CreateServerFunc = std::function<void(UInt16)>;
void createServer(const std::string & listen_host, const char * port_name, bool listen_try, CreateServerFunc && func) const;
};
}