AutoParameter.cpp

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//
// File: AutoParameter.cpp
// Authors:
//   Julien Dutheil
// Created: 2003-11-11 22:15:16
//
 
/*
  * Copyright or © or Copr. CNRS, (November 17, 2004)
  *
  * This software is a computer program whose purpose is to provide classes
  * for numerical calculus.
  *
  * This software is governed by the CeCILL license under French law and
  * abiding by the rules of distribution of free software. You can use,
  * modify and/ or redistribute the software under the terms of the CeCILL
  * license as circulated by CEA, CNRS and INRIA at the following URL
  * "http://www.cecill.info".
  *
  * As a counterpart to the access to the source code and rights to copy,
  * modify and redistribute granted by the license, users are provided only
  * with a limited warranty and the software's author, the holder of the
  * economic rights, and the successive licensors have only limited
  * liability.
  *
  * In this respect, the user's attention is drawn to the risks associated
  * with loading, using, modifying and/or developing or reproducing the
  * software by the user in light of its specific status of free software,
  * that may mean that it is complicated to manipulate, and that also
  * therefore means that it is reserved for developers and experienced
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  * encouraged to load and test the software's suitability as regards their
  * requirements in conditions enabling the security of their systems and/or
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  * same conditions as regards security.
  *
  * The fact that you are presently reading this means that you have had
  * knowledge of the CeCILL license and that you accept its terms.
*/
 
#include <iostream>
 
#include "AutoParameter.h"
#include "NumConstants.h"
 
using namespace std;
 
// Utils:
#include "../Text/TextTools.h"
#include "../App/ApplicationTools.h"
 
using namespace bpp;
 
/******************************************************************************/
 
string AutoParameter::CONSTRAINTS_AUTO   = "auto";
string AutoParameter::CONSTRAINTS_IGNORE = "ignore";
string AutoParameter::CONSTRAINTS_KEEP   = "keep";
 
AutoParameter::AutoParameter(const std::string& name, double value, std::shared_ptr<Constraint> constraint) :
  Parameter(name, value, constraint), messageHandler_(ApplicationTools::message.get()) {}
 
AutoParameter::AutoParameter(const Parameter& p) : Parameter(p), messageHandler_(ApplicationTools::message.get()) {}
 
AutoParameter::AutoParameter(const AutoParameter& p) : Parameter(p), messageHandler_(p.messageHandler_) {}
 
AutoParameter& AutoParameter::operator=(const AutoParameter& p)
{
  Parameter::operator=(p);
  messageHandler_ = p.messageHandler_;
  return *this;
}
 
/******************************************************************************/
 
void AutoParameter::setValue(double value)
{
  try
  {
    // First we try to assign this value:
    Parameter::setValue(value);
  }
  catch (ConstraintException& ce)
  {
    // Aie, there's a pb here...
    if (messageHandler_)
    {
      (*messageHandler_) << "Constraint match at parameter ";
      (*messageHandler_) << name_;
      (*messageHandler_) << ", badValue = ";
      (*messageHandler_) << ce.getBadValue();
      (*messageHandler_) << " ";
      (*messageHandler_ << constraint_->getDescription()).endLine();
    }
    double limit = constraint_->getAcceptedLimit(value);
    try
    { // We try to assign the limit then.
      Parameter::setValue(limit);
    }
    catch (ConstraintException& ce2)
    {
      // Aie, the limit is not reachable, so we perform a smaller step...
      // Parameter::setValue((getValue() + limit) / 2);
      try
      {
        // Try on the right:
        Parameter::setValue(limit + NumConstants::TINY());
      }
      catch (ConstraintException& ce3)
      {
        // Try on the left:
        Parameter::setValue(limit - NumConstants::TINY());
      }
    }
  }
}
 
/******************************************************************************/