1 | // Copyright 2012 Georg-August-Universität Göttingen, Germany |
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2 | // |
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3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
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4 | // you may not use this file except in compliance with the License. |
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5 | // You may obtain a copy of the License at |
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6 | // |
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7 | // http://www.apache.org/licenses/LICENSE-2.0 |
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8 | // |
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9 | // Unless required by applicable law or agreed to in writing, software |
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10 | // distributed under the License is distributed on an "AS IS" BASIS, |
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11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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12 | // See the License for the specific language governing permissions and |
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13 | // limitations under the License. |
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14 | |
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15 | package de.ugoe.cs.autoquest.tasktrees.treeifc; |
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16 | |
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17 | /** |
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18 | * <p> |
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19 | * Default implementation for a task visitor performing a traversal of the task |
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20 | * </p> |
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21 | * |
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22 | * @author Patrick Harms |
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23 | */ |
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24 | public class DefaultTaskTraversingVisitor implements ITaskVisitor { |
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25 | |
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26 | /* (non-Javadoc) |
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27 | * @see de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskVisitor#visit(IEventTask) |
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28 | */ |
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29 | @Override |
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30 | public void visit(IEventTask eventTask) { |
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31 | // do nothing |
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32 | } |
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33 | |
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34 | /* (non-Javadoc) |
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35 | * @see de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskVisitor#visit(IIteration) |
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36 | */ |
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37 | @Override |
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38 | public void visit(IIteration iteration) { |
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39 | visit((IMarkingTemporalRelationship) iteration); |
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40 | } |
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41 | |
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42 | /* (non-Javadoc) |
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43 | * @see de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskVisitor#visit(IOptional) |
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44 | */ |
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45 | @Override |
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46 | public void visit(IOptional optional) { |
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47 | visit((IMarkingTemporalRelationship) optional); |
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48 | } |
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49 | |
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50 | /* (non-Javadoc) |
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51 | * @see de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskVisitor#visit(ISelection) |
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52 | */ |
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53 | @Override |
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54 | public void visit(ISelection selection) { |
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55 | visit((IStructuringTemporalRelationship) selection); |
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56 | } |
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57 | |
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58 | /* (non-Javadoc) |
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59 | * @see de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskVisitor#visit(ISequence) |
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60 | */ |
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61 | @Override |
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62 | public void visit(ISequence sequence) { |
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63 | visit((IStructuringTemporalRelationship) sequence); |
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64 | } |
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65 | |
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66 | /* (non-Javadoc) |
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67 | * @see de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskVisitor#visit(ITask) |
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68 | */ |
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69 | @Override |
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70 | public void visit(ITask task) { |
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71 | if (task instanceof IEventTask) { |
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72 | visit((IEventTask) task); |
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73 | } |
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74 | else if (task instanceof IIteration) { |
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75 | visit((IIteration) task); |
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76 | } |
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77 | else if (task instanceof IOptional) { |
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78 | visit((IOptional) task); |
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79 | } |
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80 | else if (task instanceof ISelection) { |
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81 | visit((ISelection) task); |
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82 | } |
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83 | else if (task instanceof ISequence) { |
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84 | visit((ISequence) task); |
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85 | } |
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86 | } |
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87 | |
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88 | /** |
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89 | * <p> |
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90 | * common implementation for traversing a structuring temporal relationship |
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91 | * </p> |
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92 | * |
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93 | * @param relationship the structuring temporal relationship to be traversed |
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94 | */ |
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95 | public void visit(IStructuringTemporalRelationship relationship) { |
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96 | for (ITask child : relationship.getChildren()) { |
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97 | child.accept(this); |
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98 | } |
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99 | } |
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100 | |
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101 | /** |
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102 | * <p> |
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103 | * common implementation for traversing a marking temporal relationship |
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104 | * </p> |
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105 | * |
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106 | * @param relationship the marking temporal relationship to be traversed |
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107 | */ |
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108 | public void visit(IMarkingTemporalRelationship relationship) { |
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109 | if (relationship.getMarkedTask() != null) { |
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110 | relationship.getMarkedTask().accept(this); |
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111 | } |
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112 | } |
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113 | } |
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