ClickHouse/dbms/src/Server/Server.h

#pragma once

#include <Poco/URI.h>

#include <Poco/Util/LayeredConfiguration.h>

#include <Poco/Net/HTTPServer.h>
#include <Poco/Net/HTTPRequestHandlerFactory.h>
#include <Poco/Net/HTTPRequestHandler.h>
#include <Poco/Net/HTTPRequest.h>
#include <Poco/Net/HTTPServerParams.h>
#include <Poco/Net/HTTPServerRequest.h>
#include <Poco/Net/HTTPServerResponse.h>
#include <Poco/Net/HTMLForm.h>

#include <Poco/Net/TCPServer.h>
#include <Poco/Net/TCPServerConnectionFactory.h>
#include <Poco/Net/TCPServerConnection.h>

#include <common/logger_useful.h>
#include <daemon/BaseDaemon.h>
#include <DB/Common/HTMLForm.h>

#include <DB/Interpreters/Context.h>

/** Server provides three interfaces:
  * 1. HTTP - simple interface for any applications.
  * 2. TCP - interface for native clickhouse-client and for server to server internal communications.
  *    More rich and efficient, but less compatible
  *     - data is transferred by columns;
  *     - data is transferred compressed;
  *    Allows to get more information in response.
  * 3. Interserver HTTP - for replication.
  */


namespace DB
{

class Server : public BaseDaemon
{
public:
	/// Global settings of server.
	std::unique_ptr<Context> global_context;

protected:
	void initialize(Application & self) override
	{
		BaseDaemon::initialize(self);
		logger().information("starting up");
	}

	void uninitialize() override
	{
		logger().information("shutting down");
		BaseDaemon::uninitialize();
	}

	int main(const std::vector<std::string> & args) override;

private:

	void attachSystemTables(const std::string & path, bool has_zookeeper) const;

	std::string getDefaultCorePath() const override;
};

}