clusterpanel.java

一个用于排队系统仿真的开源软件,有非常形象的图象仿真过程!

package jmt.engine.jwat.workloadAnalysis.panels;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.GridLayout;

import javax.swing.BorderFactory;
import javax.swing.Box;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.ListSelectionModel;
import javax.swing.border.EtchedBorder;
import javax.swing.border.TitledBorder;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;

import jmt.engine.jwat.MatrixOsservazioni;
import jmt.engine.jwat.ProgressStatusListener;
import jmt.engine.jwat.workloadAnalysis.clustering.EventClusteringDone;
import jmt.engine.jwat.workloadAnalysis.clustering.fuzzyKMean.panels.FuzzyOptPanel;
import jmt.engine.jwat.workloadAnalysis.clustering.kMean.panels.KMeansOptPanel;
import jmt.engine.jwat.workloadAnalysis.utils.SetMatrixListener;
import jmt.engine.jwat.workloadAnalysis.utils.ModelWorkloadAnalysis;
import jmt.engine.jwat.workloadAnalysis.wizard.WorkloadAnalysisWizard;
import jmt.gui.common.CommonConstants;
import jmt.gui.help.HoverHelp;
import jmt.gui.jwat.JWatWizard;
import jmt.gui.jwat.input.EventFinishAbort;
import jmt.gui.jwat.input.EventStatus;
import jmt.gui.wizard.WizardPanel;

public class ClusterPanel extends WizardPanel implements CommonConstants{
	 
	private final String CLUSTERING_DESCRIPTION = HTML_START
		+ HTML_FONT_TITLE + "Clustering" + HTML_FONT_TIT_END + HTML_FONT_NORM
		+ "Select clustering algorithm, set options and press solve" + HTML_FONT_NOR_END
		+ HTML_END;
	private final String[] clusteringString = {"k-Means","Fuzzy k-Means"};
	
	private JPanel optClustering;
	
	private JList varList;
	private JList clustList;
	
	private ModelWorkloadAnalysis model = null;
	
	private boolean canGoOn;
	
	private WorkloadAnalysisWizard parent;
	private HoverHelp help = null;
	
	public ClusterPanel(WorkloadAnalysisWizard parent)
	{
		this.parent = parent;
		this.model=parent.getModel();
		this.help = parent.getHelp();
		canGoOn=false;
		initPanel();
	}
	
	public String getName() {
		return "Clustering";
	}
	
	private void initPanel(){
		this.setLayout(new BorderLayout());
		/*Creating Box*/
		Box mainbox = Box.createVerticalBox();
		mainbox.add(Box.createVerticalStrut(20));
		
		Box paneldesclabel = Box.createHorizontalBox();
		Box centralpanel = Box.createHorizontalBox();
		
		mainbox.add(paneldesclabel);
		mainbox.add(Box.createVerticalStrut(15));
		mainbox.add(centralpanel);
		mainbox.add(Box.createVerticalStrut(15));
		
		/** DESCRIPTION LABEL OF PANEL **/
		JPanel jpdesclabel = new JPanel(new GridLayout(1,1));
		jpdesclabel.add(new JLabel(CLUSTERING_DESCRIPTION));
		paneldesclabel.add(jpdesclabel);
		
		/** CENTRAL PANEL **/
		JPanel jcentralp = new JPanel(new BorderLayout(10,0));
		
		/** SAMPLING OPTION PANEL **/
		optClustering=new JPanel();
		optClustering.setBorder(new TitledBorder(new TitledBorder(
				new EtchedBorder(EtchedBorder.LOWERED), "Clustering options")));
		optClustering.setLayout(new BorderLayout());
		
		/** LISTS **/
		JPanel jlistpanel = new JPanel(new GridLayout(1,2,10,5));
		JPanel varpanel = new JPanel(new BorderLayout());
		JPanel cluspanel = new JPanel(new BorderLayout());
		/*PANEL LIST VAR*/
		varpanel.add(new JLabel(HTML_START + HTML_FONT_TITLE + "Variables" + HTML_FONT_TIT_END + HTML_END),BorderLayout.NORTH);
		varList=new JList();
		
		varList.setSelectionBackground(new Color(181,189,214));
		varList.setSelectionForeground(Color.BLACK);
		
		Font f = varList.getFont();
		varList.setFont(new Font(f.getFontName(), f.getStyle(), f
				.getSize() + 2));
		varList.setBorder(BorderFactory.createLoweredBevelBorder());
		varList.getSelectionModel().setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
		varList.setPreferredSize(new Dimension(140, 380));
		varpanel.add(new JScrollPane(varList,JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED),BorderLayout.CENTER);
		/*PANEL LIST CLUSTRING*/
		cluspanel.add(new JLabel(HTML_START + HTML_FONT_TITLE+ "Clustering" + HTML_FONT_TIT_END + HTML_END),BorderLayout.NORTH);
		clustList=new JList();
		
		clustList.setSelectionBackground(new Color(181,189,214));
		clustList.setSelectionForeground(Color.BLACK);
		clustList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
		
		clustList.setFont(new Font(f.getFontName(), f.getStyle(), f
				.getSize() + 2));
		clustList.setBorder(BorderFactory.createLoweredBevelBorder());
		clustList.setPreferredSize(new Dimension(140, 380));
		clustList.setListData(clusteringString);
		clustList.addListSelectionListener(new listClusterListener());
		cluspanel.add(new JScrollPane(clustList,JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED),BorderLayout.CENTER);
		
		jlistpanel.add(cluspanel);
		jlistpanel.add(varpanel);
		
		jcentralp.add(jlistpanel,BorderLayout.WEST);
		jcentralp.add(optClustering,BorderLayout.CENTER);
		
		centralpanel.add(Box.createHorizontalStrut(10));
		centralpanel.add(jcentralp);
		centralpanel.add(Box.createHorizontalStrut(10));

		this.add(mainbox);
		model.addOnSetMatrixObservationListener(new SetMatrixListener(){
			
			public void onSetMatrixObservation() {
				MatrixOsservazioni m= model.getMatrix();
				String[] varLst= m.getVariableNames();
				varList.setListData(varLst);
			}

			public void onResetMatrixObservation() {
				varList.setListData(new String[0]);
			}
			
		});
	}
	
	private class listClusterListener implements ListSelectionListener{

		public void valueChanged(ListSelectionEvent e) {
			if(!e.getValueIsAdjusting()){
				switch (clustList.getSelectedIndex()){
				case 0:	optClustering.removeAll();
				optClustering.add(new KMeansOptPanel(ClusterPanel.this,new loadListener(),model),BorderLayout.CENTER);
				optClustering.revalidate();
				optClustering.repaint();
				if(model.getListOfClustering().size() == 0) canGoOn = false;
				break;
				case 1:	optClustering.removeAll();
				optClustering.add(new FuzzyOptPanel(ClusterPanel.this,new loadListener(),model),BorderLayout.CENTER);
				optClustering.revalidate();
				optClustering.repaint();
				if(model.getListOfClustering().size() == 0) canGoOn = false;
				break;
				default:
				clustList.setSelectedIndex(0);
				}
			}
		}		
	}
	
	public int[] getVarSelected()
	{
		return varList.getSelectedIndices();
	}
	
	public boolean canGoForward() {
		return canGoOn;
	}

	public void gotFocus(){
		int pos = clustList.getSelectedIndex(); 
		clustList.clearSelection();
		if(pos != -1) clustList.setSelectedIndex(pos);
		else clustList.setSelectedIndex(0);
		if(model.getListOfClustering().size() > 0) canGoOn = true;
	}
	
	private class loadListener implements ProgressStatusListener{

		public void statusEvent(EventStatus e) {

			switch(e.getType()){
				case EventStatus.ABORT_EVENT:	abortEvent((EventFinishAbort)e);
					break;
				case EventStatus.DONE_EVENT:	finishedEvent((EventClusteringDone)e);
					break;
			}
		}
		
		//Abort caricamento file input
		private void abortEvent(EventFinishAbort e) {
			JOptionPane.showMessageDialog(ClusterPanel.this,e.getMessage(),"CLUSTERING ABORTED!!",JOptionPane.WARNING_MESSAGE);
			canGoOn=false;
			if(model.getListOfClustering().size() == 0) ((JWatWizard)getParentWizard()).setEnableButton("Next >",false);
			else ((JWatWizard)getParentWizard()).setEnableButton("Next >",true);
			((JWatWizard)getParentWizard()).setEnableButton("Solve",true);
		}

		//dati caricati
		private void finishedEvent(EventClusteringDone e) {
		//	int confirm=JOptionPane.showConfirmDialog(ClusterPanel.this,"Clustering completed, continue?","CLUSTERING COMPLETED!!",JOptionPane.YES_NO_OPTION,JOptionPane.QUESTION_MESSAGE);
		//	if (confirm==JOptionPane.YES_OPTION){
				model.addClustering(e.getClustering());
				((JWatWizard)getParentWizard()).setEnableButton("Next >",true);
				((JWatWizard)getParentWizard()).setEnableButton("Solve",false);
				canGoOn=true;
				((JWatWizard)getParentWizard()).showNextPanel();
		//	}
		/*	else{
				canGoOn=false;
				System.gc();
				((JWatWizard)getParentWizard()).setEnableButton("Next >",false);
				((JWatWizard)getParentWizard()).setEnableButton("Solve",true);
			}*/
		}
	}
	private static final String helpText = 
	"<HTML>" +
	"In this panel you can choose which clustering algorithm apply to data.<br><br>" +
    "<b>K-Means options:</b> select maximum number of clusters and maximum number of iterations.<p>" +
    "<b>Fuzzy K-Means options:</b> select maximum numver of cluster, maximum number of iteration<p>and fuzziness level.<p><p>" +
    "You can apply temporary transformation to selected variables (<I>Recommanded</I>).<br>" +
    "Press solve button to start clustering algorithm.</html>";

	public void help() {
		JOptionPane.showMessageDialog(this, helpText, "Help", JOptionPane.INFORMATION_MESSAGE);
	}
	
	public void lostFocus(){
		parent.setLastPanel(2);
	}

}