1 | //------------------------------------------------------------------------------------------------- |
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2 | // Module : $RCSfile: TaskTree.java,v $ |
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3 | // Version : $Revision: 0.0 $ $Author: patrick $ $Date: 21.02.2012 $ |
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4 | // Project : TaskTreeCreator |
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5 | // Creation : 2012 by patrick |
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6 | // Copyright : Patrick Harms, 2012 |
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7 | //------------------------------------------------------------------------------------------------- |
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8 | package de.ugoe.cs.quest.tasktrees.treeimpl; |
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9 | |
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10 | import java.util.HashMap; |
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11 | import java.util.Map; |
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12 | |
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13 | import de.ugoe.cs.quest.tasktrees.treeifc.NodeInfo; |
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14 | import de.ugoe.cs.quest.tasktrees.treeifc.TaskTree; |
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15 | import de.ugoe.cs.quest.tasktrees.treeifc.TaskTreeNode; |
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16 | |
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17 | //------------------------------------------------------------------------------------------------- |
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18 | /** |
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19 | * TODO comment |
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20 | * |
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21 | * @version $Revision: $ $Date: 21.02.2012$ |
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22 | * @author 2012, last modified by $Author: patrick$ |
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23 | */ |
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24 | //------------------------------------------------------------------------------------------------- |
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25 | public class TaskTreeImpl implements TaskTree |
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26 | { |
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27 | /** the map of nodes */ |
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28 | private Map<TaskTreeNode, NodeInfo> mTaskMap; |
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29 | |
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30 | /** the root node of the task tree */ |
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31 | private TaskTreeNode mRootNode; |
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32 | |
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33 | //----------------------------------------------------------------------------------------------- |
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34 | /** |
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35 | * TODO: comment |
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36 | * |
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37 | */ |
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38 | //----------------------------------------------------------------------------------------------- |
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39 | TaskTreeImpl(TaskTreeNode rootNode) |
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40 | { |
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41 | mRootNode = rootNode; |
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42 | } |
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43 | |
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44 | //----------------------------------------------------------------------------------------------- |
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45 | /* (non-Javadoc) |
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46 | * @see de.ugoe.cs.tasktree.treeifc.TaskTree#getRoot() |
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47 | */ |
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48 | //----------------------------------------------------------------------------------------------- |
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49 | @Override |
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50 | public TaskTreeNode getRoot() |
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51 | { |
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52 | return mRootNode; |
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53 | } |
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54 | |
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55 | //----------------------------------------------------------------------------------------------- |
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56 | /* (non-Javadoc) |
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57 | * @see de.ugoe.cs.tasktree.treeifc.TaskTree#getTaskMap() |
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58 | */ |
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59 | //----------------------------------------------------------------------------------------------- |
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60 | @Override |
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61 | public synchronized Map<TaskTreeNode, NodeInfo> getTaskMap() |
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62 | { |
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63 | if (mTaskMap == null) |
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64 | { |
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65 | mTaskMap = new HashMap<TaskTreeNode, NodeInfo>(); |
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66 | addNodeToMap(mRootNode, null); |
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67 | } |
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68 | return mTaskMap; |
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69 | } |
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70 | |
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71 | //----------------------------------------------------------------------------------------------- |
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72 | /** |
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73 | * TODO: comment |
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74 | * |
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75 | * @param rootNode |
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76 | */ |
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77 | //----------------------------------------------------------------------------------------------- |
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78 | private void addNodeToMap(TaskTreeNode node, TaskTreeNode parent) |
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79 | { |
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80 | NodeInfoImpl nodeInfo = (NodeInfoImpl) mTaskMap.get(node); |
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81 | |
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82 | if (nodeInfo == null) |
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83 | { |
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84 | nodeInfo = new NodeInfoImpl(node); |
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85 | mTaskMap.put(node, nodeInfo); |
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86 | } |
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87 | |
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88 | if (parent != null) |
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89 | { |
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90 | // through first removing an existing parent it is assured, that a parent is recorded |
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91 | // only once. This is needed, because parent may be reused in a tree as well, but we always |
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92 | // iterate the whole tree |
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93 | nodeInfo.removeParent(parent); |
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94 | nodeInfo.addParent(parent); |
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95 | } |
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96 | |
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97 | for (TaskTreeNode child : node.getChildren()) |
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98 | { |
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99 | addNodeToMap(child, node); |
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100 | } |
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101 | } |
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102 | |
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103 | } |
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