Operators.cpp

/***************************************************************************
  tag: Peter Soetens  Mon May 10 19:10:37 CEST 2004  Operators.cxx

                        Operators.cxx -  description
                           -------------------
    begin                : Mon May 10 2004
    copyright            : (C) 2004 Peter Soetens
    email                : peter.soetens@mech.kuleuven.ac.be

 ***************************************************************************
 *   This library 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;                 *
 *   version 2 of the License.                                             *
 *                                                                         *
 *   As a special exception, you may use this file as part of a free       *
 *   software library without restriction.  Specifically, if other files   *
 *   instantiate templates or use macros or inline functions from this     *
 *   file, or you compile this file and link it with other files to        *
 *   produce an executable, this file does not by itself cause the         *
 *   resulting executable to be covered by the GNU General Public          *
 *   License.  This exception does not however invalidate any other        *
 *   reasons why the executable file might be covered by the GNU General   *
 *   Public License.                                                       *
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 *   This library is distributed in the hope that it will be useful,       *
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 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU     *
 *   Lesser General Public License for more details.                       *
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 *   Foundation, Inc., 59 Temple Place,                                    *
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 ***************************************************************************/

#include "Operators.hpp"
#include "OperatorTypes.hpp"
#include <functional>

// Cappellini Consonni Extension
#include "../extras/MultiVector.hpp"

#include "../Logger.hpp"
#include <boost/type_traits.hpp>
#include <boost/shared_ptr.hpp>

#include "../internal/mystd.hpp"

#include "../rtt-config.h"

namespace RTT
{
    using namespace detail;

    namespace {
        boost::shared_ptr<OperatorRepository> reg;
    }

    boost::shared_ptr<OperatorRepository> OperatorRepository::Instance()
    {
        if ( reg )
            return reg;
        reg.reset( new OperatorRepository() );

        return reg;
    }



  OperatorRepository::OperatorRepository()
  {
  }

  void OperatorRepository::add( UnaryOp* a )
  {
    unaryops.push_back( a );
  }

  void OperatorRepository::add( BinaryOp* b )
  {
    binaryops.push_back( b );
  }

  OperatorRepository::~OperatorRepository()
  {
    delete_all( unaryops.begin(), unaryops.end() );
    delete_all( binaryops.begin(), binaryops.end() );
 }

  DataSourceBase* OperatorRepository::applyUnary(
    const std::string& op, DataSourceBase* a )
  {
    typedef std::vector<UnaryOp*> vec;
    typedef vec::iterator iter;
    for ( iter i = unaryops.begin(); i != unaryops.end(); ++i )
    {
      DataSourceBase* ret = (*i)->build( op, a );
      if ( ret ) return ret;
    }
    return 0;
  }

  DataSourceBase* OperatorRepository::applyBinary(
    const std::string& op, DataSourceBase* a, DataSourceBase* b )
  {
    typedef std::vector<BinaryOp*> vec;
    typedef vec::iterator iter;
    // First look for an exact match:
    for ( iter i = binaryops.begin(); i != binaryops.end(); ++i )
    {
        if ( (*i)->isExactMatch( op, a, b) )
            return (*i)->build( op, a, b );
    }
    for ( iter i = binaryops.begin(); i != binaryops.end(); ++i )
    {
      DataSourceBase* ret = (*i)->build( op, a, b );
      if ( ret ) return ret;
    }
    return 0;
  }

  UnaryOp::~UnaryOp()
  {
  }

  BinaryOp::~BinaryOp()
  {
  }

    OperatorRepository::shared_ptr operators() {
        return OperatorRepository::Instance();
    }
}