138 lines
3.1 KiB
C++
138 lines
3.1 KiB
C++
/*
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----
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This file is part of SECONDO.
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Copyright (C) 2012, 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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//[TOC] [\tableofcontents]
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//[_] [\_]
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//[&] [\&]
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//[x] [\ensuremath{\times}]
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//[->] [\ensuremath{\rightarrow}]
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//[>] [\ensuremath{>}]
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//[<] [\ensuremath{<}]
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//[ast] [\ensuremath{\ast}]
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*/
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/*
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[1] Class DServerCmdExecute Implementation
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\begin{center}
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April 2012 Thomas Achmann
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\end{center}
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[TOC]
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0 Description
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Implementation of the class ~DServerCmdExecute~
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1 Preliminaries
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1.1 Debug Output
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uncomment the following line
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*/
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//#define DS_CMD_COPY_DEBUG 1
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/*
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1.2 Includes
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*/
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#include "DServerCmdExecute.h"
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/*
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2 Implementation
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2.1 Method ~void run~
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implements the actual execute - functionality on the data of input darray
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object, returning a new darray object.
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*/
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void
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DServerCmdExecute::run()
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{
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#if DS_CMD_COPY_DEBUG
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cout << "DServerCmdExecute::run" << endl;
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#endif
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if (!checkWorkerAvailable())
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return;
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if (!startWorkerStreamCommunication())
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{
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setErrorText("Could not initiate communication!");
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return;
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}
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string execCmd = getCmd();
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const unsigned long soSize = getSourceObjectSize();
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for (unsigned long i = soSize; i-- > 0;)
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{
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const string& sourceObject = getSourceObject(i);
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// setup replace string
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string rpl = "!";
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for (unsigned long k =0; k < i; ++k)
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rpl += "!";
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execCmd = stringutils::replaceAll(execCmd, rpl,
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"r" +
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sourceObject + getIndexStr());
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}
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execCmd =
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stringutils::replaceAll(execCmd, "d_idx",
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"int " + getIndexStr());
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//A command is executed on the worker and assigned
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//to the new DArray Objekt on that worker
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string cmd = "(let r" + getWorker() -> getName() +
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getIndexStr() + " = " + execCmd + ")";
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if (!sendSecondoCmdToWorkerNL(cmd))
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{
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string err;
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if (hasCmdError())
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err = getCmdErrorText();
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else
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err = "Could not execute this command on worker:\n" + cmd;
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setErrorText(err);
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}
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if (!closeWorkerStreamCommunication())
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{
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setErrorText("Could not stop communication!");
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return;
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}
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#if DS_CMD_COPY_DEBUG
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cout << "DServerCmdExecute::run DONE" << endl;
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#endif
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} // run()
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