📄 whatifpanel.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.exact.panels;
import jmt.gui.wizard.WizardPanel;
import jmt.gui.exact.ExactConstants;
import jmt.gui.exact.ExactWizard;
import jmt.gui.exact.ExactModel;
import jmt.gui.help.HoverHelp;
import javax.swing.*;
import javax.swing.border.EtchedBorder;
import javax.swing.event.TableModelEvent;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.AbstractTableModel;
import java.awt.*;
import java.awt.event.*;
import java.util.Vector;
import java.util.TreeMap;
import java.util.Iterator;
import java.text.DecimalFormat;
/**
* <p>Title: What-If Analysis Panel</p>
* <p>Description: This panel is used to show and parametrize what if analysis
* for jMVA. This is really complex as I have to cope with horrible JMVA data structure
* and many controls must be performed to correctly parametrize analysis.</p>
*
* @author Bertoli Marco
* Date: 26-mag-2006
* Time: 13.48.45
*/
public class WhatIfPanel extends WizardPanel implements ExactConstants, ForceUpdatablePanel{
private ExactWizard wizard;
private HoverHelp help;
private JLabel description, stationLabel, classLabel, fromLabel, toLabel, iterationLabel;
public static final String helpText = "<html>In this panel you can select a <em>control parameter</em> " +
"that will be used to performa a what-if analysis.<br>Model solution is iterated by changing selected " +
"parameter and graphical results will be shown.</html>";
private static final String NO_ANALYSIS = "-- Disabled --";
private static final String ALL_CLASSES = "-- All classes proportionally --";
private static final String FROM_ALL = "From (%) : ";
private static final String FROM_ARRIVAL = "From (job/s) : ";
private static final String FROM_CUSTOMERS = "From (Ni) : ";
private static final String FROM_DEMANDS = "From (s) : ";
private static final String FROM_MIX = "From (\u03b2i) : ";
private static final String TO_ALL = "To (%) : ";
private static final String TO_ARRIVAL = "To (job/s) : ";
private static final String TO_CUSTOMERS = "To (Ni) : ";
private static final String TO_DEMANDS = "To (s) : ";
private static final String TO_MIX = "To (\u03b2i) : ";
private JComboBox type, stationName, className;
private JTextField from, to, iterations;
private ClassTable classTable;
private JPanel tablePanel;
private DecimalFormat intFormatter = new DecimalFormat("#"); // This is used to display population
private DecimalFormat doubleFormatter = new DecimalFormat("#0.0###"); // This is used to display doubles
// Data structures
private ExactModel data;
private TreeMap classNames; // A map className --> index in source array
private TreeMap closedClassNames, openClassNames;
private TreeMap stationNames; // A map stationName --> index in source array without LD stations
private double[] values;
private String currentType, currentClass;
private Vector openClasses, closedClasses; // All open classes and closed classes names
private Vector modes = new Vector(); // Available what-if types
// Current value ('from' field)
private double current;
/**
* @return the panel's name
*/
public String getName() {
return "What-if";
}
/**
* Creates a new What-If Panel, given parent ExactWizard
* @param ex
*/
public WhatIfPanel(ExactWizard ex) {
this.wizard = ex;
help = ex.getHelp();
initComponents();
sync();
}
/**
* retrive current data structure and updates shown components
*/
private void sync() {
/* retrive current data structure */
data = wizard.getData();
// Adds all classes to classNames and closedClassNames/openClassNames arrays
closedClassNames = new TreeMap();
closedClasses = new Vector();
closedClassNames.put(ALL_CLASSES, new Integer(-1));
openClassNames = new TreeMap();
openClassNames.put(ALL_CLASSES, new Integer(-1));
openClasses = new Vector();
classNames = new TreeMap();
classNames.put(ALL_CLASSES, new Integer(-1));
for (int i=0; i<data.getClasses(); i++) {
String name = data.getClassNames()[i];
Integer index = new Integer(i);
classNames.put(name, index);
if (data.getClassTypes()[i] == ExactModel.CLASS_OPEN) {
openClassNames.put(name, index);
openClasses.add(name);
}
else {
closedClassNames.put(name, index);
closedClasses.add(name);
}
}
// Removes LD stations
stationNames = new TreeMap();
for (int i=0; i<data.getStations(); i++)
if (data.getStationTypes()[i] != ExactModel.STATION_LD)
stationNames.put(data.getStationNames()[i], new Integer(i));
// Finds available analysis types
modes.clear();
type.removeAllItems();
modes.add(NO_ANALYSIS);
type.addItem(NO_ANALYSIS);
// If model has some closed classes
if (data.isClosed() || data.isMixed()) {
modes.add(WHAT_IF_CUSTOMERS);
type.addItem(WHAT_IF_CUSTOMERS);
}
else
type.addItem(GRAY_S+WHAT_IF_CUSTOMERS+" (only closed classes)"+GRAY_E);
// If model has some open classes
if (data.isOpen() || data.isMixed()) {
modes.add(WHAT_IF_ARRIVAL);
type.addItem(WHAT_IF_ARRIVAL);
}
else
type.addItem(GRAY_S+WHAT_IF_ARRIVAL+" (only open classes)"+GRAY_E);
// If model has two closed classes, allow population mix
if (closedClasses.size() == 2) {
modes.add(WHAT_IF_MIX);
type.addItem(WHAT_IF_MIX);
}
else
type.addItem(GRAY_S+WHAT_IF_MIX+" (only 2 closed classes)"+GRAY_E);
// If model has at least one not LD station, allows service demands
if (stationNames.size() > 0) {
modes.add(WHAT_IF_DEMANDS);
type.addItem(WHAT_IF_DEMANDS);
}
else
type.addItem(GRAY_S+WHAT_IF_DEMANDS+" (only LI or Delay)"+GRAY_E);
// Selects correct type
if (data.getWhatIfType() == null || !modes.contains(data.getWhatIfType()))
type.setSelectedItem(NO_ANALYSIS);
else
type.setSelectedItem(data.getWhatIfType());
// Selects correct class
if (data.getWhatIfClass() < 0 || data.getWhatIfClass() >= data.getClasses())
className.setSelectedItem(ALL_CLASSES);
else
className.setSelectedItem(data.getClassNames()[data.getWhatIfClass()]);
// Selects correct station
if (data.getWhatIfStation() >= 0 && data.getWhatIfStation() < data.getStations())
stationName.setSelectedItem(data.getStationNames()[data.getWhatIfStation()]);
else if (stationName.getItemCount() > 0)
stationName.setSelectedIndex(0);
if (data.getWhatIfValues() != null)
values = data.getWhatIfValues();
setFromToIterations();
}
/**
* Sets values for from, to and iteration fields
*/
private void setFromToIterations() {
// Gets type
String type = (String) this.type.getSelectedItem();
// Sets from and to values
if (values != null && !type.equals(NO_ANALYSIS)) {
// Percentage values
if (((Integer)classNames.get(className.getSelectedItem())).intValue() < 0) {
from.setText(doubleFormatter.format(values[0]*100));
to.setText(doubleFormatter.format(values[values.length-1]*100));
}
// Normal values
else {
if (!type.equals(ExactModel.WHAT_IF_CUSTOMERS)) {
from.setText(doubleFormatter.format(values[0]));
to.setText(doubleFormatter.format(values[values.length-1]));
}
else { // Integer values
from.setText(intFormatter.format(values[0]));
to.setText(intFormatter.format(values[values.length-1]));
}
}
iterations.setText(""+values.length);
}
}
/**
* Commits changes to data structure
*/
private void commit() {
if (type.getSelectedItem().equals(NO_ANALYSIS)) {
data.setWhatIfType(null);
data.setWhatIfClass(-1);
data.setWhatIfStation(-1);
data.setWhatIfValues(null);
}
else {
data.setWhatIfType((String) type.getSelectedItem());
data.setWhatIfValues(values);
// Sets selected class
data.setWhatIfClass(((Integer)classNames.get(className.getSelectedItem())).intValue());
// Sets selected station if Service Demands is selected
if (!data.getWhatIfType().equals(ExactModel.WHAT_IF_DEMANDS))
data.setWhatIfStation(-1);
else {
data.setWhatIfStation(((Integer)stationNames.get(stationName.getSelectedItem())).intValue());
}
}
}
/**
* Initialize gui of this panel
*/
private void initComponents() {
setBorder(BorderFactory.createEmptyBorder(20,20,20,20));
setLayout(new BorderLayout(5,5));
// Listener for From, To and Iteration fields
inputListener listener = new inputListener();
// Description label
description = new JLabel(DESCRIPTION_WHATIF_NONE);
description.setPreferredSize(new Dimension(220,200));
description.setVerticalAlignment(JLabel.NORTH);
add(description, BorderLayout.WEST);
// Builds panel with parameters
JPanel paramPanel = new JPanel(new GridLayout(6,2,5,5));
// Control parameter
paramPanel.add(new JLabel("Control Parameter :", JLabel.RIGHT));
type = new JComboBox(new String[]{NO_ANALYSIS});
type.addItemListener(new ItemListener() {
public void itemStateChanged(ItemEvent e) {
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