185 lines
4.8 KiB
C++
185 lines
4.8 KiB
C++
/*
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----
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This file is part of SECONDO.
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Copyright (C) 2021,
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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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*/
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#ifndef _ConnectionMYSQL_H_
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#define _ConnectionMYSQL_H_
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#include "Attribute.h"
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#include "NestedList.h"
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#include "StandardTypes.h"
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#include "Algebra.h"
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#include "Stream.h"
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#include "Algebras/Relation-C++/OperatorConsume.h"
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#include "Algebras/FText/FTextAlgebra.h"
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#include "WinUnix.h"
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#include "ConnectionGeneric.h"
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#include "ResultIteratorMySQL.h"
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#include <string>
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#include <boost/log/trivial.hpp>
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#include <boost/algorithm/string.hpp>
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#include <bits/stdc++.h>
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#include <mysql.h>
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namespace BasicEngine {
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/*
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5 Class ~ConnectionPG~
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This class represents the controling from the system.
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*/
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class ConnectionMySQL : public ConnectionGeneric {
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public:
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/*
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5.1 Public Methods
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*/
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ConnectionMySQL(const std::string &_dbUser, const std::string &_dbPass,
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const int _dbPort, const std::string &_dbName);
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virtual ~ConnectionMySQL();
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std::string getDbType() {
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return DBTYPE;
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}
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bool sendCommand(const std::string &command, bool print = true);
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bool createConnection();
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bool checkConnection();
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std::string getCreateTableSQL(const std::string &table);
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bool validateQuery(const std::string &query);
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std::string getDropTableSQL(const std::string &table) {
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return "DROP TABLE IF EXISTS " + table + ";";
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}
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std::string getDropIndexSQL(const std::string& table,
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const std::string &column) {
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return "DROP INDEX " + column + " ON " + table +";";
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}
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std::string getCreateGeoIndexSQL(const std::string &table,
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const std::string &geo_col) {
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return "ALTER TABLE " + table + " ADD SPATIAL INDEX(" + geo_col + ");";
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}
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bool partitionRoundRobin(const std::string &table,
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const std::string &key, const size_t anzSlots,
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const std::string &targetTab);
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std::string getPartitionHashSQL(const std::string &table,
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const std::string &key, const size_t anzSlots,
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const std::string &targetTab);
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std::string getPartitionSQL(const std::string &table,
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const std::string &keyS, const size_t anzSlots,
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const std::string &fun, const std::string &targetTab);
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std::string getPartitionGridSQL(const std::string &table,
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const std::string &key, const std::string &geo_col,
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const size_t anzSlots, const std::string &x0,
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const std::string &y0, const std::string &size,
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const std::string &targetTab);
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std::string getExportDataSQL(const std::string &table,
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const std::string &join_table, const std::string &key,
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const std::string &nr, const std::string &path,
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size_t numberOfWorker);
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std::string getCopySQL(const std::string &table,
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const std::string &full_path, bool direct);
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std::string getImportTableSQL(
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const std::string &table, const std::string &full_path);
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std::string getExportTableSQL(
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const std::string &table, const std::string &full_path);
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std::string getFilenameForPartition(const std::string &table,
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const std::string &number) {
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return table + "_" + std::to_string(WinUnix::getpid())
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+ "_" + number + ".bin";
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}
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std::string getCreateTabSQL(const std::string &table,
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const std::string &query) {
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return "CREATE TABLE " + table + " AS ("+ query + ")";
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}
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std::string getCopySchemaSQL(const std::string &table) {
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return "SELECT * FROM " + table + " LIMIT 0";
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}
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std::string getRenameTableSQL(const std::string &source,
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const std::string &destination) {
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return "ALTER TABLE " + source + " RENAME TO " + destination + ";";
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}
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std::vector<std::tuple<std::string, std::string>> getTypeFromSQLQuery(
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const std::string &sqlQuery);
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ResultIteratorGeneric* performSQLSelectQuery(const std::string &sqlQuery);
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// The DB Type
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inline static const std::string DBTYPE = "mysql";
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private:
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/*
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5.2 Members
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5.2.1 ~conn~
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The connection to PostgreSQL
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*/
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MYSQL* conn = nullptr;
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MYSQL_RES* sendQuery(const std::string &query);
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std::string getjoin(const std::string &key);
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std::vector<std::tuple<std::string, std::string>> getTypeFromQuery(
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MYSQL_RES* res);
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};
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}; /* namespace BasicEngine */
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#endif //_ConnectionMySQL_H_
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