146 lines
4.1 KiB
C++
146 lines
4.1 KiB
C++
/*
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----
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This file is part of SECONDO.
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Copyright (C) 2004, University in Hagen, Department of 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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//paragraph [1] Title: [{\Large \bf \begin{center}] [\end{center}}]
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//paragraph [10] Footnote: [{\footnote{] [}}]
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//[->] [$\rightarrow$]
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//[TOC] [\tableofcontents]
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//[_] [\_]
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*/
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#ifndef DS_MANAGER_H
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#define DS_MANAGER_H
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#include "Attribute.h" // implementation of attribute types
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#include "Algebra.h" // definition of the algebra
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#include "NestedList.h" // required at many places
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#include "QueryProcessor.h" // needed for implementing value mappings
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#include "AlgebraManager.h" // e.g., check for a certain kind
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#include "Operator.h" // for operator creation
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#include "StandardTypes.h" // priovides int, real, string, bool type
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#include "Algebras/FText/FTextAlgebra.h"
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#include "Symbols.h" // predefined strings
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#include "ListUtils.h" // useful functions for nested lists
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#include "Stream.h" // wrapper for secondo streams
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//#include "GenericTC.h" // use of generic type constructors
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#include "LogMsg.h" // send error messages
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#include "Tools/Flob/DbArray.h" // use of DbArrays
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#include "Algebras/Relation-C++/RelationAlgebra.h" // use of tuples
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#include <math.h> // required for some operators
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#include <stack>
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#include <limits>
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#include <boost/numeric/ublas/vector.hpp>
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#include <vector>
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/*
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Global Variables
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Secondo uses some variables designed as singleton pattern. For accessing these
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global variables, these variables have to be declared to be extern:
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*/
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extern NestedList *nl;
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extern QueryProcessor *qp;
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extern AlgebraManager *am;
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namespace sharedstream {
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class Manager {
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public:
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/*function (operator) for adding a new StreamSource manually
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* This function will also update the data to choose from
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* the webinterface*/
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void addSource(std::string sourceName, std::string ipAdress,
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std::string port, ListExpr tupleDescription);
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//function to receive data from web interface
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void registeredQuery(std::string query);
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/*function to start a StreamProcessor and transfering the needed data for
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connection to a StreamSource*/
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/*Funktion von Thomas
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* TODO: Includes rausbekommen, so kompiliert es nicht,
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* Distributed2 zu includen reicht nicht, die includes werden
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* anscheinend nicht mitgenommen
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ConnectionInfo *con = ConnectionInfo::createConnection
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("localhost", 1234, "SecondoConfig.ini");
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if(!con){
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cerr << "Cold not connect to Secondo" << endl; //Fehlerbehandlung
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return;
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}
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if(!con->switchDatabase("newdatabase", true, false)){
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cerr << "switching to database failed" << endl;
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return;
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}
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string cmd = "let myObject = 10";
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int errorCode;
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string errorMsg;
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string resultList;
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double runtime;
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Commandlog log;
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con->
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simpleCommand(cmd, errorCode, errorMsg, resultList,
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false, runtime, false, false, log);
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if(errorCode==0){
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cout << "command " << cmd << " successful" << endl;
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} else {
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cout << "command " << cmd << " failed " << endl << errorMsg << endl;
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}*/
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//function to add a new constant to a StreamProcessor (query)
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private:
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/*Struct for saving the SourceEntrys*/
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struct SourceEntry {
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std::string SourceName;
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std::string ipAdress;
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std::string port;
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ListExpr tupleDescription;
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};
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/*Vector for storing the SourceEntries*/
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std::vector<SourceEntry> SourceEntries;
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};
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}
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#endif //DS_MANAGER_H
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