Homec4science
Diffusion blackdynamite (multiuser) Browse

R3127/src/sql_state_updater.hh
37bdc45cff01multiuser

Last Change
Raw File

sql_state_updater.hh
View Options

#ifndef __AKANTU_SQL_STATE_UPDATER_HH__
#define __AKANTU_SQL_STATE_UPDATER_HH__
/* -------------------------------------------------------------------------- */
#include "pusher.hh"
#include <cmath>
/* -------------------------------------------------------------------------- */
namespace BlackDynamite {
class Pusher::SqlStateUpdater : public pqxx::transactor<transaction> {
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
public:
SqlStateUpdater(const std::string & tablename, UInt run_id):
pqxx::transactor<transaction>("Update state of table" + tablename),
tablename(tablename), run_id(run_id), state(UNDEF)
{}
/* ------------------------------------------------------------------------ */
/* Accessors */
/* ------------------------------------------------------------------------ */
void operator()(transaction & T);
void changeState(RunState st){
state = st;
}
protected:
std::string makeRequest(const std::string & field,bool value);
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
protected:
std::string tablename;
UInt run_id;
RunState state;
};
/* -------------------------------------------------------------------------- */
std::string Pusher::SqlStateUpdater::makeRequest(const std::string & field,bool value){
std::stringstream command;
command << "UPDATE " << pqxx::to_string(tablename) << ".runs"
<< " SET " << pqxx::to_string(field)
<< " = " << pqxx::to_string(value)
<< " WHERE id = " << pqxx::to_string(run_id)
<< ";";
return command.str();
}
void Pusher::SqlStateUpdater::operator()(transaction & trans) {
std::string command;
std::cout << "state is " << state << " " << this << std::endl ;
switch (state){
case STARTED: command = this->makeRequest("has_started",true);break;
case ENDED: command = this->makeRequest("has_finished",true);break;
default: FATAL("this should not append");
}
std::cout << command << std::endl;
// command << "UPDATE " << pqxx::to_string(tablename) << ".runs"
// << " SET has_started = true WHERE id = " << pqxx::to_string(run_id)
// << ";";
try {
trans.exec(command);
} catch (std::runtime_error & e) {
FATAL("Failed to execute query: "
<< command << std::endl << " with message: " << e.what());
}
std::cout << "state is " << state << " " << this << std::endl ;
}
}
#endif /* __AKANTU_SQL_STATE_UPDATER_HH__ */
c4science · Help