#pragma once

#include <Server/TCPServerConnectionFactory.h>

#include <Server/TCPServer.h>

#include <Poco/Util/LayeredConfiguration.h>

#include <Server/IServer.h>

#include <Server/TCPProtocolStackData.h>

namespace DB

{

class TCPProtocolStackHandler : public Poco::Net::TCPServerConnection

{

using StreamSocket = Poco::Net::StreamSocket;

using TCPServerConnection = Poco::Net::TCPServerConnection;

private:

IServer & server;

TCPServer & tcp_server;

std::vector<TCPServerConnectionFactory::Ptr> stack;

std::string conf_name;

public:

TCPProtocolStackHandler(IServer & server_, TCPServer & tcp_server_, const StreamSocket & socket, const std::vector<TCPServerConnectionFactory::Ptr> & stack_, const std::string & conf_name_)

: TCPServerConnection(socket), server(server_), tcp_server(tcp_server_), stack(stack_), conf_name(conf_name_)

{}

void run() override

{

const auto & conf = server.config();

TCPProtocolStackData stack_data;

stack_data.socket = socket();

stack_data.default_database = conf.getString(conf_name + ".default_database", "");

for (auto & factory : stack)

{

std::unique_ptr<TCPServerConnection> connection(factory->createConnection(socket(), tcp_server, stack_data));

connection->run();

if (stack_data.socket != socket())

socket() = stack_data.socket;

}

}

};

}