//  ZDTStudy.java
//
//  Authors:
//       Antonio J. Nebro <antonio@lcc.uma.es>
//
//  Copyright (c) 2012 Antonio J. Nebro
//
//  This program is free software: you can redistribute it and/or modify
//  it under the terms of the GNU Lesser General Public License as published by
//  the Free Software Foundation, either version 3 of the License, or
//  (at your option) any later version.
//
//  This program is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU Lesser General Public License for more details.
// 
//  You should have received a copy of the GNU Lesser General Public License
//  along with this program.  If not, see <http://www.gnu.org/licenses/>.

package jmetal.experiments.studies;

import jmetal.core.Algorithm;
import jmetal.experiments.Experiment;
import jmetal.experiments.Settings;
import jmetal.experiments.settings.GDE3_Settings;
import jmetal.experiments.settings.NSGAII_Settings;
import jmetal.experiments.settings.SMPSO_Settings;
import jmetal.experiments.util.Friedman;
import jmetal.util.JMException;

import java.io.IOException;
import java.util.HashMap;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 * Class implementing an example experimental study. Three algorithms are 
 * compared when solving the benchmarks, and the hypervolume,
 * spread and additive epsilon indicators are used for performance assessment.
 */
public class ZDTStudy extends Experiment {

  /**
   * Configures the algorithms in each independent run
   * @param problemName The problem to solve
   * @param problemIndex
   * @throws ClassNotFoundException 
   */
  public void algorithmSettings(String problemName, 
      int problemIndex, 
      Algorithm[] algorithm) throws ClassNotFoundException {
    try {
      int numberOfAlgorithms = algorithmNameList_.length;

      HashMap[] parameters = new HashMap[numberOfAlgorithms];

      for (int i = 0; i < numberOfAlgorithms; i++) {
        parameters[i] = new HashMap();
      } // for

      if (!(paretoFrontFile_[problemIndex] == null) && !paretoFrontFile_[problemIndex].equals("")) {
        for (int i = 0; i < numberOfAlgorithms; i++)
          parameters[i].put("frontPath_", frontPath_[problemIndex]);
        //parameters[i].put("paretoFrontFile_", paretoFrontFile_[problemIndex]);
      } // if

      algorithm[0] = new NSGAII_Settings(problemName).configure(parameters[0]);
      algorithm[1] = new SMPSO_Settings(problemName).configure(parameters[1]);
      algorithm[2] = new GDE3_Settings(problemName).configure(parameters[2]);
    } catch (IllegalArgumentException ex) {
      Logger.getLogger(StandardStudy.class.getName()).log(Level.SEVERE, null, ex);
    } catch (IllegalAccessException ex) {
      Logger.getLogger(StandardStudy.class.getName()).log(Level.SEVERE, null, ex);
    } catch  (JMException ex) {
      Logger.getLogger(StandardStudy.class.getName()).log(Level.SEVERE, null, ex);
    }
  } // algorithmSettings

  /**
   * Main method
   * @param args
   * @throws jmetal.util.JMException
   * @throws java.io.IOException
   */
  public static void main(String[] args) throws JMException, IOException {
    ZDTStudy exp = new ZDTStudy();

    exp.experimentName_ = "ZDTStudy";
    exp.algorithmNameList_ = new String[]{
        "NSGAII", "SMPSO", "GDE3"};
    exp.problemList_ = new String[]{"ZDT1", "ZDT2","ZDT3", "ZDT4","ZDT6"};
    exp.paretoFrontFile_ = new String[]{"ZDT1.pf", "ZDT2.pf","ZDT3.pf",
        "ZDT4.pf","ZDT6.pf"};

    exp.indicatorList_ = new String[]{"HV", "SPREAD", "EPSILON"};

    int numberOfAlgorithms = exp.algorithmNameList_.length;

    exp.experimentBaseDirectory_ = "/Users/antelverde/Softw/pruebas/jmetal/" +
        exp.experimentName_;
    exp.paretoFrontDirectory_ = "/Users/antelverde/Softw/pruebas/data/paretoFronts";

    exp.algorithmSettings_ = new Settings[numberOfAlgorithms];

    exp.independentRuns_ = 100;

    exp.initExperiment();

    // Run the experiments
    int numberOfThreads ;
    exp.runExperiment(numberOfThreads = 4) ;

    exp.generateQualityIndicators() ;

    // Generate latex tables
    exp.generateLatexTables() ;

    // Configure the R scripts to be generated
    int rows  ;
    int columns  ;
    String prefix ;
    String [] problems ;
    boolean notch ;

    // Configuring scripts for ZDT
    rows = 3 ;
    columns = 2 ;
    prefix = new String("ZDT");
    problems = new String[]{"ZDT1", "ZDT2","ZDT3", "ZDT4","ZDT6"} ;

    exp.generateRBoxplotScripts(rows, columns, problems, prefix, notch = false, exp) ;
    exp.generateRWilcoxonScripts(problems, prefix, exp) ;

    // Friedman Tests
    Friedman test = new Friedman(exp);
    test.executeTest("EPSILON");
    test.executeTest("HV");
    test.executeTest("SPREAD");
    //test.executeTest("IGD");
  } // main
} // ZDTStudy