Files
secondo/Algebras/DBService/OperatorPingDBService.cpp
2026-01-23 17:03:45 +08:00

72 lines
2.1 KiB
C++

/*
1.1.1 Class Implementation
----
This file is part of SECONDO.
Copyright (C) 2017,
Faculty of Mathematics and Computer Science,
Database Systems for New Applications.
SECONDO is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
SECONDO is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with SECONDO; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
----
*/
#include "NestedList.h"
#include "StandardTypes.h"
#include "QueryProcessor.h"
#include "Algebras/DBService/DBServiceClient.hpp"
#include "Algebras/DBService/DebugOutput.hpp"
#include "Algebras/DBService/OperatorPingDBService.hpp"
namespace DBService
{
ListExpr OperatorPingDBService::mapType(ListExpr nestedList)
{
printFunction("OperatorPingDBService::mapType", std::cout);
print(nestedList, std::cout);
if (!nl->HasLength(nestedList, 0))
{
ErrorReporter::ReportError(
"expected signature: (empty signature)");
return nl->TypeError();
}
return listutils::basicSymbol<CcBool>();
}
int OperatorPingDBService::mapValue(Word* args,
Word& result,
int message,
Word& local,
Supplier s)
{
printFunction("OperatorPingDBService::mapValue", std::cout);
DBServiceClient* dbServiceClient = DBServiceClient::getInstance();
bool isReachable = false;
if(dbServiceClient){
isReachable = dbServiceClient->pingDBService();
}
result = qp->ResultStorage(s);
static_cast<CcBool*>(result.addr)->Set(true, isReachable);
return 0;
}
} /* namespace DBService */