Revision: 288
http://dl-learner.svn.sourceforge.net/dl-learner/?rev=288&view=rev
Author: jenslehmann
Date: 2007-11-24 01:04:49 -0800 (Sat, 24 Nov 2007)
Log Message:
-----------
created a GUI demo using Swing
Added Paths:
-----------
trunk/src/dl-learner/org/dllearner/gui/MiniGUI.java
Added: trunk/src/dl-learner/org/dllearner/gui/MiniGUI.java
===================================================================
--- trunk/src/dl-learner/org/dllearner/gui/MiniGUI.java (rev 0)
+++ trunk/src/dl-learner/org/dllearner/gui/MiniGUI.java 2007-11-24 09:04:49 UTC (rev 288)
@@ -0,0 +1,190 @@
+/**
+ * Copyright (C) 2007, Jens Lehmann
+ *
+ * This file is part of DL-Learner.
+ *
+ * DL-Learner 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * DL-Learner 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+package org.dllearner.gui;
+
+import java.awt.BorderLayout;
+import java.awt.Dimension;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.io.File;
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Set;
+
+import javax.swing.DefaultListModel;
+import javax.swing.JButton;
+import javax.swing.JFileChooser;
+import javax.swing.JFrame;
+import javax.swing.JList;
+import javax.swing.JPanel;
+import javax.swing.JScrollPane;
+import javax.swing.JTextField;
+
+import org.dllearner.algorithms.refinement.ROLearner;
+import org.dllearner.core.ComponentManager;
+import org.dllearner.core.KnowledgeSource;
+import org.dllearner.core.LearningAlgorithm;
+import org.dllearner.core.LearningProblem;
+import org.dllearner.core.ReasonerComponent;
+import org.dllearner.core.ReasoningService;
+import org.dllearner.core.dl.Concept;
+import org.dllearner.core.dl.Individual;
+import org.dllearner.kb.OWLFile;
+import org.dllearner.learningproblems.PosOnlyDefinitionLP;
+import org.dllearner.reasoning.DIGReasoner;
+
+/**
+ * Mini GUI Demo.
+ *
+ * @author Jens Lehmann
+ *
+ */
+public class MiniGUI extends JPanel implements ActionListener {
+
+ private static final long serialVersionUID = -4247224068574471307L;
+
+ private static ComponentManager cm = ComponentManager.getInstance();
+ private ReasoningService rs;
+ private File selectedFile;
+
+ private JButton openButton;
+ private JButton startLearnButton;
+ private JTextField fileDisplay;
+ private JFileChooser fc;
+ private List<Individual> individuals;
+ private JList exampleList;
+ private JTextField solutionDisplay;
+
+ public MiniGUI() {
+ super(new BorderLayout());
+
+ // create file chooser and a text field showing
+ // the file name
+ // (for simplicity we only allow to select one knowledge source)
+ fc = new JFileChooser(new File("examples/"));
+ openButton = new JButton("Open File ...");
+ openButton.addActionListener(this);
+ fileDisplay = new JTextField(40);
+ fileDisplay.setEditable(false);
+
+ JPanel openPanel = new JPanel();
+ openPanel.add(fileDisplay);
+ openPanel.add(openButton);
+
+ // create a scrollable list of examples
+ JPanel examplePanel = new JPanel();
+ exampleList = new JList();
+ exampleList.setLayoutOrientation(JList.VERTICAL);
+ exampleList.setVisibleRowCount(-1);
+ JScrollPane listScroller = new JScrollPane(exampleList);
+ listScroller.setPreferredSize(new Dimension(250, 80));
+ examplePanel.add(listScroller);
+
+ // create a "learn" button and a text field for displaying
+ // the obtained solution
+ startLearnButton = new JButton("Learn Concept");
+ startLearnButton.addActionListener(this);
+ JPanel startLearnButtonPanel = new JPanel();
+ startLearnButtonPanel.add(startLearnButton);
+ solutionDisplay = new JTextField(50);
+ solutionDisplay.setEditable(false);
+ JPanel startPanel = new JPanel(new BorderLayout());
+ startPanel.add(startLearnButtonPanel, BorderLayout.NORTH);
+ startPanel.add(solutionDisplay, BorderLayout.SOUTH);
+
+ // arrange the components on this panel
+ add(openPanel, BorderLayout.PAGE_START);
+ add(examplePanel, BorderLayout.CENTER);
+ add(startPanel, BorderLayout.PAGE_END);
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see java.awt.event.ActionListener#actionPerformed(java.awt.event.ActionEvent)
+ */
+ public void actionPerformed(ActionEvent e) {
+ if (e.getSource() == openButton) {
+ int returnVal = fc.showOpenDialog(MiniGUI.this);
+
+ if (returnVal == JFileChooser.APPROVE_OPTION) {
+ selectedFile = fc.getSelectedFile();
+ fileDisplay.setText(selectedFile.toString());
+
+ // we blindly assume an OWL file was selected
+ // (everything else will cause an exception)
+ KnowledgeSource source = cm.knowledgeSource(OWLFile.class);
+ cm.applyConfigEntry(source, "url", selectedFile.toURI().toString());
+ source.init();
+
+ // use a reasoner to find out which instances exist
+ // in the background knowledge
+ ReasonerComponent reasoner = cm.reasoner(DIGReasoner.class, source);
+ reasoner.init();
+ rs = cm.reasoningService(reasoner);
+ Set<Individual> individualsSet = rs.getIndividuals();
+ individuals = new LinkedList<Individual>(individualsSet);
+
+ DefaultListModel listModel = new DefaultListModel();
+ for(Individual ind : individuals)
+ listModel.addElement(ind);
+
+ exampleList.setModel(listModel);
+ }
+ } else if(e.getSource() == startLearnButton) {
+ // detect which examples have been selected
+ Set<String> exampleSet = new HashSet<String>();
+ int[] selectedIndices = exampleList.getSelectedIndices();
+ for(int i : selectedIndices)
+ exampleSet.add(individuals.get(i).toString());
+
+ // create a positive only learning problem
+ LearningProblem lp = cm.learningProblem(PosOnlyDefinitionLP.class, rs);
+ cm.applyConfigEntry(lp, "positiveExamples", exampleSet);
+ lp.init();
+
+ // try the refinement operator based learning algorithm to solve
+ // the problem
+ LearningAlgorithm la = cm.learningAlgorithm(ROLearner.class, lp, rs);
+ la.init();
+ la.start();
+
+ // wait for a solution (note that not all learning problems have a
+ // solution (100% accuracy), so one usually has to run the algorithm in its own
+ // thread, such that it can be aborted after some time
+ Concept solution = la.getBestSolution();
+ solutionDisplay.setText(solution.toString());
+ }
+ }
+
+ public static void main(String[] args) {
+
+ // create a frame containing the main panel
+ JFrame frame = new JFrame("Mini DL-Learner GUI Demo");
+ frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+ frame.add(new MiniGUI());
+ frame.pack();
+ frame.setLocationRelativeTo(null);
+ frame.setVisible(true);
+
+ }
+
+}
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