149 lines
4.3 KiB
C++
149 lines
4.3 KiB
C++
/*
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1.1.1 Class Implementation
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----
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This file is part of SECONDO.
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Copyright (C) 2017,
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Faculty of Mathematics and Computer Science,
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Database Systems for New Applications.
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SECONDO is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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SECONDO is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with SECONDO; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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----
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*/
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#include "FileSystem.h"
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#include "NestedList.h"
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#include "StandardTypes.h"
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#include "QueryProcessor.h"
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#include "Algebras/DBService2/DBServiceClient.hpp"
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#include "Algebras/DBService2/DebugOutput.hpp"
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#include "Algebras/DBService2/OperatorDDelete.hpp"
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#include "Algebras/DBService2/ReplicationUtils.hpp"
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#include "boost/filesystem.hpp"
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#include <loguru.hpp>
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namespace fs = boost::filesystem;
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using namespace std;
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extern boost::recursive_mutex nlparsemtx;
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namespace DBService
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{
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ListExpr OperatorDDelete::mapType(ListExpr nestedList)
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{
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print(nestedList, std::cout);
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LOG_F(INFO, "%s", "Acquiring lock for nlparsemtx...");
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boost::lock_guard<boost::recursive_mutex> guard(nlparsemtx);
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LOG_F(INFO, "%s", "Successfully acquired lock for nlparsemtx...");
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if (!nl->HasLength(nestedList, 2) && !nl->HasLength(nestedList,3))
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{
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ErrorReporter::ReportError(
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"expected signature: string x bool");
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return nl->TypeError();
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}
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if(!CcString::checkType(nl->First(nestedList)))
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{
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ErrorReporter::ReportError(
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"first argument must be: string");
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return nl->TypeError();
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}
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if(nl->HasLength(nestedList,2)){
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if(!CcBool::checkType(nl->Second(nestedList)))
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{
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ErrorReporter::ReportError(
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"second argument must be: bool");
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return nl->TypeError();
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}
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} else {
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if(!CcString::checkType(nl->Second(nestedList))){
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return listutils::typeError("second arg is not a string");
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}
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if(!CcBool::checkType(nl->Third(nestedList))){
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return listutils::typeError("last argument is not of type bool");
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}
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}
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return listutils::basicSymbol<CcBool>();
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}
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int OperatorDDelete::mapValue(Word* args,
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Word& result,
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int message,
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Word& local,
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Supplier s)
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{
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string relationName = static_cast<CcString*>(args[0].addr)->GetValue();
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bool deleteLocalRelation;
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string derivateName = "";
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if(qp->GetNoSons(s)==2)
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{
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deleteLocalRelation = static_cast<CcBool*>(args[1].addr)->GetValue();
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} else
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{
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derivateName = static_cast<CcString*>(args[1].addr)->GetValue();
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deleteLocalRelation = static_cast<CcBool*>(args[2].addr)->GetValue();
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}
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print("relationName", relationName, std::cout);
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print("derivateName", derivateName, std::cout);
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print("deleteLocalRelation", deleteLocalRelation, std::cout);
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// Deleting the local relation's .bin-file.
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fs::path filepath = ReplicationUtils::getFilePathOnDBServiceWorker(
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SecondoSystem::GetInstance()->GetDatabaseName(),
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relationName);
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FileSystem::DeleteFileOrFolder(filepath.string());
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bool success = false;
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try{
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DBServiceClient* cl = DBServiceClient::getInstance();
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if(cl){
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success = cl->deleteReplicas(
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SecondoSystem::GetInstance()->GetDatabaseName(),
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relationName,
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derivateName);
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}
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} catch(...){
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success = false;
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}
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if(deleteLocalRelation)
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{
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print("deleting local relation", std::cout);
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SecondoCatalog* catalog = SecondoSystem::GetCatalog();
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if (!catalog->DeleteObject(relationName))
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{
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success = false;
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}
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}
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result = qp->ResultStorage(s);
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static_cast<CcBool*>(result.addr)->Set(true, success);
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return 0;
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}
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} /* namespace DBService */
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