parametricanalysis.java

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/**    
  * Copyright (C) 2006, Laboratorio di Valutazione delle Prestazioni - Politecnico di Milano

  * This program 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; either version 2 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 General Public License for more details.

  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
  
package jmt.gui.common.definitions.parametric;

import jmt.gui.common.definitions.ClassDefinition;

import java.util.HashMap;
import java.util.Set;
import java.util.Vector;

/**
 * <p>Title:</p>
 * <p>Description:</p>
 *
 * @author Francesco D'Aquino
 *         Date: 29-gen-2006
 *         Time: 21.51.35
 */
public interface ParametricAnalysis {
    public final String PA_TYPE_NUMBER_OF_CUSTOMERS = "Number of customers";
    public final String PA_TYPE_POPULATION_MIX = "Population mix";
    public final String PA_TYPE_SERVICE_TIMES = "Service times";
    public final String PA_TYPE_ARRIVAL_RATE = "Arrival rate";
    public final String PA_TYPE_SEED = "Seed";
    public final int MAX_STEP_NUMBER = 1000;

    /**
    * <p>Title: ValuesTable</p>
    * <p>Description: this class represents a table used to contain the values that the varying will assume
    *                during the parametric analysis. It contains a HashMap, used to contain a Vector for each
    *                class, containing the values that the parameter will assume step by step.</p>
    *
    * @author Francesco D'Aquino
    *         Date: 18-dic-2005
    *         Time: 09.09.09
    */

    public class ValuesTable {
        HashMap table;
        ClassDefinition classDef;
        int numberOfSteps;
        Vector classSet;

        public ValuesTable(ClassDefinition cd,Vector classSet,int numberOfSteps) {
            this.numberOfSteps = numberOfSteps;
            this.classSet = classSet;
            table = new HashMap(numberOfSteps,1);
            for (int i=0;i<classSet.size();i++) {
                table.put(classSet.get(i),new Vector(numberOfSteps));
            }
            classDef = cd;

        }

        /**
         * Sets the next-step value for the parameter of class <code>classKey</code>.
         * @param classKey the class of the parameter
         * @param value the value it will assume
         */
        public void setValue(Object classKey,double value) {
            Vector classValues = (Vector) table.get(classKey);
            classValues.add(new Double(value));
        }

        /**
         * Gets the value assumed by the parameter of class <code>classKey</code> at step <code>step</code>.
         * @param classKey the class the parameter belongs to.
         * @param step the step we are interested in.
         * @return the value the parameter will assume.
         */
        public double getValue(Object classKey,int step) {
            Vector classValues = (Vector) table.get(classKey);
            return ((Double)(classValues.get(step))).doubleValue();
        }

        /**
         * Gets the total number of steps inserted.
         * @return the total number of steps inserted.
         */
        public int getNumberOfInsertedSteps() {
            int steps = 0;
            if (!table.isEmpty()) {
                Vector temp = (Vector)table.get(classSet.get(0));
                steps = temp.size();
            }
            return steps;
        }

        /**
         * Gets the number of classes the table contains
         * @return the number of contained classes
         */
        public int getNumberOfClasses() {
            return table.keySet().size();
        }

        /**
         * Returns a Set containing the class Keys
         * @return a Set containing the class Keys
         */
        public Set getClassKeySet() {
            return table.keySet();
        }
    }
}