1 | package de.ugoe.cs.quest.commands.usage;
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2 |
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3 | import java.awt.Dimension;
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4 | import java.awt.Rectangle;
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5 | import java.awt.Shape;
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6 | import java.security.InvalidParameterException;
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7 | import java.util.List;
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8 |
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9 | import javax.swing.JFrame;
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10 |
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11 | import org.apache.commons.collections15.Transformer;
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12 |
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13 | import de.ugoe.cs.quest.CommandHelpers;
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14 | import de.ugoe.cs.quest.usageprofiles.FirstOrderMarkovModel;
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15 | import de.ugoe.cs.quest.usageprofiles.FirstOrderMarkovModel.MarkovEdge;
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16 | import de.ugoe.cs.util.console.Command;
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17 | import de.ugoe.cs.util.console.GlobalDataContainer;
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18 | import edu.uci.ics.jung.algorithms.layout.ISOMLayout;
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19 | import edu.uci.ics.jung.algorithms.layout.Layout;
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20 | import edu.uci.ics.jung.graph.Graph;
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21 | import edu.uci.ics.jung.visualization.BasicVisualizationServer;
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22 | import edu.uci.ics.jung.visualization.decorators.ToStringLabeller;
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23 | import edu.uci.ics.jung.visualization.renderers.Renderer.VertexLabel.Position;
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24 |
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25 | /**
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26 | * <p>
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27 | * Command that visualizes first-order Markov models.
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28 | * </p>
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29 | *
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30 | * @author Steffen Herbold
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31 | * @version 1.0
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32 | */
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33 | public class CMDshowMarkovModel implements Command {
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34 |
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35 | /*
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36 | * (non-Javadoc)
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37 | *
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38 | * @see de.ugoe.cs.util.console.Command#help()
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39 | */
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40 | @Override
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41 | public String help() {
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42 | return "showMarkovModel <modelname> {<showNodeNames>}";
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43 | }
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44 |
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45 | /*
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46 | * (non-Javadoc)
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47 | *
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48 | * @see de.ugoe.cs.util.console.Command#run(java.util.List)
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49 | */
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50 | @Override
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51 | public void run(List<Object> parameters) {
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52 | String modelname;
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53 | boolean showNodeNames = false;
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54 | try {
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55 | modelname = (String) parameters.get(0);
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56 | if (parameters.size() == 2) {
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57 | showNodeNames = Boolean
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58 | .parseBoolean((String) parameters.get(1));
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59 | }
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60 | } catch (Exception e) {
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61 | throw new InvalidParameterException();
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62 | }
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63 |
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64 | Object dataObject = GlobalDataContainer.getInstance()
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65 | .getData(modelname);
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66 | if (dataObject == null) {
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67 | CommandHelpers.objectNotFoundMessage(modelname);
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68 | return;
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69 | }
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70 | if (!(dataObject instanceof FirstOrderMarkovModel)) {
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71 | CommandHelpers.objectNotType(modelname, "FirstOrderMarkovModel");
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72 | return;
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73 | }
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74 | FirstOrderMarkovModel mm = (FirstOrderMarkovModel) dataObject;
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75 |
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76 | Graph<String, MarkovEdge> graph = mm.getGraph();
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77 | Layout<String, MarkovEdge> layout = new ISOMLayout<String, MarkovEdge>(
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78 | graph);
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79 | layout.setSize(new Dimension(1000, 800)); // sets the initial size
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80 | // of the space
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81 | // The BasicVisualizationServer<V,E> is parameterized by the edge
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82 | // types
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83 | BasicVisualizationServer<String, MarkovEdge> vv = new BasicVisualizationServer<String, MarkovEdge>(
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84 | layout);
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85 | vv.setPreferredSize(new Dimension(1100, 850)); // Sets the viewing
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86 | // area size
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87 |
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88 | if (showNodeNames) {
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89 | final Rectangle rect = new Rectangle(240, 20);
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90 |
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91 | Transformer<String, Shape> vertexShapeTransformer = new Transformer<String, Shape>() {
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92 | public Shape transform(String s) {
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93 | return rect;
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94 | }
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95 | };
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96 | vv.getRenderer().getVertexLabelRenderer()
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97 | .setPosition(Position.CNTR);
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98 | vv.getRenderContext().setVertexShapeTransformer(
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99 | vertexShapeTransformer);
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100 | vv.getRenderContext().setVertexLabelTransformer(
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101 | new ToStringLabeller<String>());
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102 | }
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103 |
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104 | vv.getRenderContext().setEdgeLabelTransformer(
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105 | new ToStringLabeller<MarkovEdge>());
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106 |
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107 | JFrame frame = new JFrame("Markov Model");
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108 | frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
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109 | frame.getContentPane().add(vv);
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110 | frame.pack();
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111 | frame.setVisible(true);
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112 | }
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113 | }
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