1 | package de.ugoe.cs.quest.tasktrees.manager;
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2 |
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3 | import java.util.logging.Logger;
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4 |
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5 | import de.ugoe.cs.quest.eventcore.Event;
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6 | import de.ugoe.cs.quest.eventcore.IEventTarget;
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7 | import de.ugoe.cs.quest.eventcore.gui.KeyInteraction;
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8 | import de.ugoe.cs.quest.eventcore.gui.KeyboardFocusChange;
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9 | import de.ugoe.cs.quest.tasktrees.treeifc.IEventTask;
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10 | import de.ugoe.cs.quest.tasktrees.treeifc.ISequence;
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11 | import de.ugoe.cs.quest.tasktrees.treeifc.ITaskTree;
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12 | import de.ugoe.cs.quest.tasktrees.treeifc.ITaskTreeBuilder;
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13 | import de.ugoe.cs.quest.tasktrees.treeifc.ITaskTreeNode;
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14 | import de.ugoe.cs.quest.tasktrees.treeifc.ITaskTreeNodeFactory;
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15 |
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16 | /**
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17 | * TODO comment
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18 | *
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19 | * @version $Revision: $ $Date: $
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20 | * @author 2011, last modified by $Author: $
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21 | */
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22 | public class TaskTreeManager {
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23 |
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24 | /** */
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25 | private static final int MAX_EVENTS_TILL_RULE_APPLICATION = 100;
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26 |
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27 | /** */
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28 | private static Logger LOG = Logger.getLogger(TaskTreeManager.class.getName());
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29 |
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30 | /** */
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31 | private ITaskTreeBuilder taskTreeBuilder = ComponentManager.getDefaultTaskTreeBuilder();
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32 |
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33 | /** */
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34 | private ITaskTreeNodeFactory taskTreeNodeFactory =
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35 | ComponentManager.getDefaultTaskTreeNodeFactory();
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36 |
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37 | /** */
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38 | private int eventsTillRuleApplication = MAX_EVENTS_TILL_RULE_APPLICATION;
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39 |
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40 | /** */
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41 | private ISequence rootSequence;
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42 |
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43 | /** */
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44 | private IEventTarget currentKeyboardFocusGUIElement;
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45 |
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46 | /**
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47 | * TODO: comment
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48 | *
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49 | */
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50 | public TaskTreeManager() {
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51 | rootSequence = taskTreeNodeFactory.createNewSequence();
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52 | }
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53 |
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54 | /**
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55 | *
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56 | */
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57 | public void handleNewEvent(Event event) {
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58 | if (event.getType() instanceof KeyInteraction) {
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59 | if (currentKeyboardFocusGUIElement == null) {
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60 | currentKeyboardFocusGUIElement = event.getTarget();
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61 | }
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62 |
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63 | addEventTask
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64 | (taskTreeNodeFactory.createNewEventTask
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65 | (event.getType(), currentKeyboardFocusGUIElement));
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66 | }
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67 | else {
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68 | addEventTask
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69 | (taskTreeNodeFactory.createNewEventTask(event.getType(), event.getTarget()));
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70 | }
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71 | }
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72 |
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73 | /**
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74 | *
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75 | */
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76 | public synchronized ITaskTree getTaskTree() {
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77 | LOG.info("applying rules temporal relationship generation rules");
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78 |
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79 | ISequence currentRootSequence = rootSequence.clone();
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80 | ComponentManager.getTemporalRelationshipRuleManager().applyRules
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81 | (currentRootSequence, taskTreeBuilder, taskTreeNodeFactory, true);
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82 |
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83 | return taskTreeNodeFactory.createTaskTree(currentRootSequence);
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84 | }
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85 |
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86 | /**
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87 | * @param task
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88 | */
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89 | private synchronized void addEventTask(IEventTask task) {
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90 | handleEventTask(task);
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91 | }
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92 |
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93 | /**
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94 | * adds the task to the current or the new sequence. The decision depends on the type of task.
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95 | * If the task finishes the current sequence, the sequence is marked as finished If the task
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96 | * does not start a new sequence, it is added to the current sequence, before it is marked s
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97 | * finished. Otherwise it is added to a new sequence.
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98 | */
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99 | private void handleEventTask(IEventTask eventTask) {
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100 | if (eventTask.getEventType() instanceof KeyboardFocusChange) {
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101 | currentKeyboardFocusGUIElement = eventTask.getEventTarget();
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102 | }
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103 | else {
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104 | LOG.info("handling event task \"" + eventTask + "\"");
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105 | addTaskToSequence(eventTask, currentKeyboardFocusGUIElement);
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106 | }
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107 | }
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108 |
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109 | /**
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110 | *
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111 | */
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112 | private void addTaskToSequence(ITaskTreeNode task, IEventTarget currentKeyboardFocusGUIElement)
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113 | {
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114 | taskTreeBuilder.addChild(rootSequence, task);
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115 |
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116 | if (--eventsTillRuleApplication == 0) {
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117 | eventsTillRuleApplication = MAX_EVENTS_TILL_RULE_APPLICATION;
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118 |
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119 | LOG.info("applying rules temporal relationship generation rules");
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120 | ComponentManager.getTemporalRelationshipRuleManager().applyRules(rootSequence,
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121 | taskTreeBuilder,
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122 | taskTreeNodeFactory,
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123 | false);
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124 | }
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125 | }
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126 |
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127 | }
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