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.temporalrelation; |
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16 | |
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17 | import java.util.ArrayList; |
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18 | import java.util.Collection; |
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19 | import java.util.HashMap; |
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20 | import java.util.Iterator; |
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21 | import java.util.LinkedList; |
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22 | import java.util.List; |
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23 | import java.util.Map; |
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24 | |
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25 | import de.ugoe.cs.autoquest.tasktrees.taskequality.TaskEquality; |
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26 | import de.ugoe.cs.autoquest.tasktrees.temporalrelation.utils.MostSimilarTaskDeterminer; |
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27 | import de.ugoe.cs.autoquest.tasktrees.temporalrelation.utils.SimilarTasks; |
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28 | import de.ugoe.cs.autoquest.tasktrees.temporalrelation.utils.TaskTraversal; |
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29 | import de.ugoe.cs.autoquest.tasktrees.treeifc.DefaultTaskInstanceTraversingVisitor; |
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30 | import de.ugoe.cs.autoquest.tasktrees.treeifc.IIteration; |
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31 | import de.ugoe.cs.autoquest.tasktrees.treeifc.IIterationInstance; |
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32 | import de.ugoe.cs.autoquest.tasktrees.treeifc.IMarkingTemporalRelationship; |
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33 | import de.ugoe.cs.autoquest.tasktrees.treeifc.IOptional; |
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34 | import de.ugoe.cs.autoquest.tasktrees.treeifc.IOptionalInstance; |
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35 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ISelection; |
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36 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ISelectionInstance; |
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37 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ISequence; |
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38 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ISequenceInstance; |
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39 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITask; |
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40 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskBuilder; |
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41 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskFactory; |
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42 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskInstance; |
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43 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskInstanceList; |
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44 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskModel; |
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45 | import de.ugoe.cs.autoquest.tasktrees.treeifc.IUserSession; |
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46 | import de.ugoe.cs.autoquest.tasktrees.treeifc.TaskPath; |
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47 | import de.ugoe.cs.util.console.Console; |
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48 | import difflib.Chunk; |
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49 | import difflib.Delta; |
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50 | |
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51 | /** |
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52 | * <p> |
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53 | * This rule performs a condensing of a task tree. It searches for similar tasks and merges them |
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54 | * if possible in to one task with different execution variants. Hence, this rule detects selections |
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55 | * and optionals. |
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56 | * </p> |
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57 | * <p> |
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58 | * The similarity of tasks is determined by comparing task traversals. A task traversal is an |
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59 | * ordered list of the leaf nodes of a task. This is similar to performing a minimal execution of |
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60 | * the task. The task traversals of two tasks are compared using string comparison algorithms. The |
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61 | * less differences the lists have, the more similar they are. |
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62 | * </p> |
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63 | * <p> |
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64 | * If two tasks are similar, they are merged. Merging is done based on the differences between |
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65 | * the task traversals. Two tasks are merged based on their instances. First, all instances of both |
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66 | * tasks are flattened. Instances of selections or commonalities of both tasks stay unflattened. |
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67 | * Then the lists resulting from this flattening are extended with instances of optionals and |
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68 | * selections which are introduced where required. Finally, the instances are put together to a |
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69 | * single task again by applying the {@link SequenceForTaskDetectionRule} on them. |
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70 | * </p> |
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71 | * <p> |
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72 | * Merging has to consider several specific situations. E.g., tasks may look similar but due to |
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73 | * iterations, they can not be merged correctly. Here, the rule ensures, that these so called |
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74 | * interleaving iterations are detected, not traversed when traversing a task and its instances, |
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75 | * and, therefore, preserved. |
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76 | * </p> |
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77 | * <p> |
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78 | * All details about this rule are described in the extended ACHI2014 paper of Harms "Trace-based |
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79 | * task tree generation". The extended paper was submitted to the IntSys IARIA Journal. |
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80 | * </p> |
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81 | * |
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82 | * @author Patrick Harms |
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83 | */ |
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84 | class CondenseSimilarTasksRule implements ISessionScopeRule { |
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85 | |
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86 | /** |
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87 | * <p> |
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88 | * the task factory to be used for creating substructures for the temporal |
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89 | * relationships identified during rule application |
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90 | * </p> |
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91 | */ |
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92 | private ITaskFactory taskFactory; |
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93 | /** |
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94 | * <p> |
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95 | * the task builder to be used for creating substructures for the temporal relationships |
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96 | * identified during rule application |
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97 | * </p> |
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98 | */ |
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99 | private ITaskBuilder taskBuilder; |
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100 | |
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101 | /** |
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102 | * <p> |
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103 | * the task handling strategy to be used for comparing tasks during iteration detection an trie |
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104 | * generation, i.e., after the tasks are harmonized |
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105 | * </p> |
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106 | */ |
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107 | private TaskHandlingStrategy identTaskHandlStrat; |
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108 | |
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109 | /** |
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110 | * <p> |
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111 | * instantiates the rule and initializes it with a task equality to be considered when |
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112 | * comparing tasks as well as a task factory and builder to be used for creating task |
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113 | * structures. |
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114 | * </p> |
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115 | * |
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116 | * @param minimalTaskEquality the task equality to be considered when comparing tasks |
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117 | * @param taskFactory the task factory to be used for creating substructures |
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118 | * @param taskBuilder the task builder to be used for creating substructures |
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119 | */ |
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120 | CondenseSimilarTasksRule(TaskEquality minimalTaskEquality, |
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121 | ITaskFactory taskFactory, |
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122 | ITaskBuilder taskBuilder) |
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123 | { |
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124 | this.taskFactory = taskFactory; |
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125 | this.taskBuilder = taskBuilder; |
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126 | |
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127 | this.identTaskHandlStrat = new TaskHandlingStrategy(TaskEquality.IDENTICAL); |
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128 | } |
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129 | |
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130 | /* (non-Javadoc) |
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131 | * @see java.lang.Object#toString() |
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132 | */ |
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133 | @Override |
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134 | public String toString() { |
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135 | return "CondenseSimilarTasksRule"; |
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136 | } |
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137 | |
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138 | /* (non-Javadoc) |
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139 | * @see de.ugoe.cs.autoquest.tasktrees.temporalrelation.ISessionScopeRule#apply(java.util.List) |
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140 | */ |
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141 | @Override |
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142 | public RuleApplicationResult apply(List<IUserSession> sessions) { |
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143 | |
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144 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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145 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> TEST IMPLEMENTATION >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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146 | /*final List<IEventTaskInstance> formerInstances = new ArrayList<>(); |
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147 | final List<IEventTaskInstance> newInstances = new ArrayList<>(); |
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148 | |
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149 | try { |
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150 | ITaskInstanceVisitor visitor = new DefaultTaskInstanceTraversingVisitor() { |
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151 | @Override |
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152 | public void visit(IEventTaskInstance eventTaskInstance) { |
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153 | formerInstances.add(eventTaskInstance); |
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154 | } |
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155 | }; |
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156 | |
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157 | PrintStream out = new PrintStream(new FileOutputStream(new File("01.out"))); |
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158 | |
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159 | for (IUserSession session : sessions) { |
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160 | new TaskTreeEncoder().encode(session, out, null); |
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161 | |
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162 | for (ITaskInstance instance : session) { |
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163 | instance.accept(visitor); |
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164 | } |
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165 | } |
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166 | out.close(); |
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167 | } |
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168 | catch (FileNotFoundException e) { |
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169 | e.printStackTrace(); |
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170 | } |
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171 | |
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172 | PrintStream fileout = null; |
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173 | try { |
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174 | fileout = new PrintStream("sysout.txt"); |
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175 | } |
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176 | catch (FileNotFoundException e1) { |
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177 | e1.printStackTrace(); |
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178 | } |
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179 | |
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180 | PrintStream origOut = System.out; |
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181 | if (fileout != null) { |
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182 | System.setOut(fileout); |
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183 | }*/ |
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184 | |
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185 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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186 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< TEST IMPLEMENTATION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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187 | |
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188 | |
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189 | RuleApplicationData appData = new RuleApplicationData(sessions); |
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190 | //int mergecount = 0; |
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191 | |
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192 | do { |
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193 | appData.setTaskModel(taskFactory.createTaskModel(sessions)); |
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194 | |
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195 | /*mergecount++; |
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196 | if ((mergecount > 140) && ((mergecount % 20) == 0)) { |
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197 | System.out.println("performing validation " + mergecount); |
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198 | new TaskTreeValidator().validate(appData.getTaskModel().getUserSessions(), true); |
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199 | }*/ |
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200 | |
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201 | |
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202 | appData.setMostSimilarTasks(null); |
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203 | |
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204 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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205 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> TEST IMPLEMENTATION >>>>>>>>>>>>>>>>>>>>> |
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206 | // for (ITask task : appData.getTaskModel().getTasks()) { |
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207 | // if (task.getInstances().size() <= 0) { |
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208 | // throw new RuntimeException("task " + task + " has no instances anymore"); |
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209 | // } |
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210 | // |
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211 | // try { |
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212 | // new TaskTreeValidator().validate(task); |
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213 | // } |
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214 | // catch (Exception e) { |
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215 | // new TaskTreeEncoder().encode(task, System.err); |
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216 | // } |
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217 | // } |
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218 | // |
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219 | // new TaskTreeValidator().validate(sessions); |
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220 | |
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221 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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222 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< TEST IMPLEMENTATION <<<<<<<<<<<<<<<<<<<<<< |
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223 | |
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224 | |
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225 | Console.println("condensing " + appData.getTaskModel().getTasks().size() + " tasks"); |
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226 | |
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227 | getMostSimilarTasks(appData); |
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228 | |
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229 | if (appData.getMostSimilarTasks() != null) { |
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230 | for (SimilarTasks mostSimilarTask : appData.getMostSimilarTasks()) { |
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231 | handleSimilarTasks(mostSimilarTask, appData); |
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232 | appData.markAsAlreadyCondensed |
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233 | (mostSimilarTask.getLeftHandSide(), mostSimilarTask.getRightHandSide()); |
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234 | } |
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235 | } |
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236 | |
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237 | harmonizeMarkingTemporalRelationships(sessions); |
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238 | } |
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239 | while (appData.getMostSimilarTasks() != null); |
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240 | |
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241 | |
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242 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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243 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> TEST IMPLEMENTATION >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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244 | /*try { |
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245 | ITaskInstanceVisitor visitor = new DefaultTaskInstanceTraversingVisitor() { |
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246 | @Override |
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247 | public void visit(IEventTaskInstance eventTaskInstance) { |
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248 | newInstances.add(eventTaskInstance); |
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249 | } |
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250 | }; |
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251 | |
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252 | PrintStream out = new PrintStream(new FileOutputStream(new File("02.out"))); |
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253 | |
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254 | for (IUserSession session : sessions) { |
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255 | new TaskTreeEncoder().encode(session, out, null); |
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256 | |
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257 | for (ITaskInstance instance : session) { |
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258 | instance.accept(visitor); |
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259 | } |
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260 | } |
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261 | out.close(); |
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262 | } |
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263 | catch (FileNotFoundException e) { |
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264 | e.printStackTrace(); |
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265 | } |
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266 | |
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267 | System.out.println("sizes " + formerInstances.size() + " " + newInstances.size()); |
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268 | for (int i = 0; i < newInstances.size(); i++) { |
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269 | if (formerInstances.get(i) != newInstances.get(i)) { |
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270 | System.out.println(i + " " + formerInstances.get(i) + " " + newInstances.get(i)); |
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271 | } |
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272 | } |
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273 | |
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274 | System.setOut(origOut); |
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275 | fileout.close();*/ |
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276 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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277 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< TEST IMPLEMENTATION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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278 | |
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279 | |
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280 | return appData.finalizeRuleApplicationResult(); |
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281 | } |
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282 | |
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283 | /** |
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284 | * |
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285 | */ |
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286 | private void harmonizeMarkingTemporalRelationships(List<IUserSession> sessions) { |
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287 | final Map<ITask, IIteration> harmonizedIterations = new HashMap<>(); |
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288 | final Map<ITask, IOptional> harmonizedOptionals = new HashMap<>(); |
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289 | |
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290 | for (IUserSession session : sessions) { |
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291 | for (ITaskInstance instance : session) { |
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292 | instance.accept(new DefaultTaskInstanceTraversingVisitor() { |
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293 | |
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294 | @Override |
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295 | public void visit(IIterationInstance iterationInstance) { |
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296 | // visit the children |
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297 | super.visit(iterationInstance); |
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298 | |
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299 | // there may have been a model update at the children. If so, set the |
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300 | // new marked task |
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301 | IIteration iteration = iterationInstance.getIteration(); |
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302 | ITask newChildTask = iterationInstance.get(0).getTask(); |
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303 | |
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304 | if (newChildTask != iteration.getMarkedTask()) { |
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305 | taskBuilder.setMarkedTask(iteration, newChildTask); |
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306 | } |
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307 | |
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308 | // check, if there is a harmonized iteration |
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309 | IIteration harmonizedIteration = |
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310 | harmonizedIterations.get(iteration.getMarkedTask()); |
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311 | |
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312 | if ((harmonizedIteration != null) && (iteration != harmonizedIteration)) { |
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313 | // there is a harmonized iteration --> set it as new task |
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314 | /*System.out.println("harmonizing iteration of " + |
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315 | iteration.getMarkedTask() + " from " + iteration + |
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316 | " to " + harmonizedIteration);*/ |
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317 | taskBuilder.setTask(iterationInstance, harmonizedIteration); |
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318 | } |
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319 | else if (harmonizedIteration == null) { |
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320 | // remember this iteration as the harmonized one |
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321 | harmonizedIterations.put(iteration.getMarkedTask(), iteration); |
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322 | } |
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323 | } |
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324 | |
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325 | @Override |
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326 | public void visit(IOptionalInstance optionalInstance) { |
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327 | // visit the children |
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328 | super.visit(optionalInstance); |
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329 | |
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330 | IOptional optional = optionalInstance.getOptional(); |
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331 | |
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332 | if (optionalInstance.getChild() != null) { |
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333 | // there may have been a model update at the child. If so, set the |
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334 | // new marked task |
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335 | ITask newChildTask = optionalInstance.getChild().getTask(); |
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336 | |
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337 | if (newChildTask != optional.getMarkedTask()) { |
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338 | taskBuilder.setMarkedTask(optional, newChildTask); |
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339 | } |
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340 | } |
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341 | |
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342 | // check, if there is a harmonized optional |
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343 | IOptional harmonizedOptional = |
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344 | harmonizedOptionals.get(optional.getMarkedTask()); |
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345 | |
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346 | if ((harmonizedOptional != null) && (optional != harmonizedOptional)) { |
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347 | // there is a harmonized optional --> set it as new task |
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348 | /*System.out.println("harmonizing optional of " + |
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349 | optional.getMarkedTask() + " from " + optional + |
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350 | " to " + harmonizedOptional);*/ |
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351 | taskBuilder.setTask(optionalInstance, harmonizedOptional); |
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352 | } |
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353 | else if (harmonizedOptional == null) { |
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354 | // remember this optional as the harmonized one |
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355 | harmonizedOptionals.put(optional.getMarkedTask(), optional); |
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356 | } |
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357 | } |
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358 | |
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359 | @Override |
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360 | public void visit(ISelectionInstance selectionInstance) { |
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361 | ITask childTaskBeforeUpdate = selectionInstance.getChild().getTask(); |
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362 | |
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363 | super.visit(selectionInstance); |
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364 | |
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365 | ITask childTaskAfterUpdate = selectionInstance.getChild().getTask(); |
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366 | |
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367 | if (childTaskBeforeUpdate != childTaskAfterUpdate) { |
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368 | // update the selection model if required. |
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369 | ISelection selection = selectionInstance.getSelection(); |
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370 | |
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371 | boolean foundOtherInstanceWithOldChild = false; |
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372 | |
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373 | for (ITaskInstance instance : selection.getInstances()) { |
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374 | ITask child = ((ISelectionInstance) instance).getChild().getTask(); |
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375 | |
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376 | if (child == childTaskBeforeUpdate) { |
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377 | foundOtherInstanceWithOldChild = true; |
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378 | break; |
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379 | } |
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380 | } |
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381 | |
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382 | if (!foundOtherInstanceWithOldChild) { |
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383 | taskBuilder.removeChild(selection, childTaskBeforeUpdate); |
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384 | } |
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385 | |
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386 | // remove and add the child to ensure to have it only once |
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387 | taskBuilder.removeChild(selection, childTaskAfterUpdate); |
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388 | taskBuilder.addChild(selection, childTaskAfterUpdate); |
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389 | } |
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390 | } |
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391 | |
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392 | @Override |
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393 | public void visit(ISequenceInstance sequenceInstance) { |
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394 | ISequence sequence = sequenceInstance.getSequence(); |
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395 | int childIndex = 0; |
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396 | |
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397 | for (ITaskInstance child : sequenceInstance) { |
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398 | child.accept(this); |
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399 | |
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400 | ITask newChildTask = child.getTask(); |
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401 | |
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402 | if (sequence.getChildren().get(childIndex) != newChildTask) { |
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403 | taskBuilder.setChild(sequenceInstance.getSequence(), childIndex, |
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404 | newChildTask); |
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405 | } |
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406 | |
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407 | childIndex++; |
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408 | } |
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409 | } |
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410 | |
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411 | }); |
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412 | |
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413 | } |
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414 | |
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415 | // several subsequent instances, which had formerly different tasks, may now have |
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416 | // the same. Hence, they need to be merged. But as everything else would be way too |
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417 | // complex, we only perform the merge, if they occur next to each other on the |
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418 | // same level |
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419 | mergeSubsequentIdenticalMarkingTemporalRelationships(session); |
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420 | } |
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421 | } |
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422 | |
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423 | /** |
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424 | * |
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425 | */ |
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426 | private void getMostSimilarTasks(RuleApplicationData appData) { |
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427 | // determine the list of interesting tasks |
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428 | Collection<ITask> allTasks = appData.getTaskModel().getTasks(); |
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429 | Iterator<ITask> taskIterator = allTasks.iterator(); |
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430 | List<ITask> taskList = new ArrayList<ITask>(allTasks.size()); |
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431 | |
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432 | while (taskIterator.hasNext()) { |
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433 | ITask task = taskIterator.next(); |
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434 | |
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435 | // only Sequences need to be compared with each other. Iterations differ only in their |
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436 | // child, i.e., in the child sequences. |
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437 | if (task instanceof ISequence) { |
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438 | taskList.add(task); |
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439 | } |
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440 | } |
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441 | |
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442 | if (taskList.size() > 1) { |
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443 | List<SimilarTasks> mostSimilarTasks = |
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444 | appData.getMostSimilarTasksDeterminer().getMostSimilarTasks |
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445 | (taskList, appData.getTaskModel()); |
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446 | |
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447 | if (mostSimilarTasks.size() > 0) { |
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448 | appData.setMostSimilarTasks(mostSimilarTasks); |
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449 | } |
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450 | } |
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451 | } |
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452 | |
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453 | /** |
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454 | * |
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455 | */ |
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456 | private void handleSimilarTasks(SimilarTasks similarTasks, RuleApplicationData appData) { |
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457 | // we need at least one instance per similar task. If not, it will not work and also |
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458 | // does not make sense. No instances anymore can be caused by merging and hence |
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459 | // discarding tasks in preceding merges. |
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460 | |
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461 | // similarTasks.dump(System.out); |
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462 | |
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463 | if ((similarTasks.getLeftHandSide().getInstances().size() <= 0) || |
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464 | (similarTasks.getRightHandSide().getInstances().size() <= 0)) |
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465 | { |
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466 | /*System.out.println("a task exists that has no instances"); |
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467 | System.out.println(similarTasks.getLeftHandSide() + " " + |
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468 | similarTasks.getLeftHandSide().getInstances().size()); |
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469 | System.out.println(similarTasks.getRightHandSide() + " " + |
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470 | similarTasks.getRightHandSide().getInstances().size());*/ |
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471 | |
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472 | throw new RuntimeException |
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473 | ("one and the same task seems to belong to several similar tasks"); |
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474 | } |
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475 | |
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476 | similarTasks = SimilarTasks.getMergableLevelOfSimilarity |
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477 | (similarTasks, identTaskHandlStrat.getTaskComparator()); |
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478 | |
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479 | if (similarTasks == null) { |
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480 | // this may happen, if no mergable level of similarity can be found |
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481 | return; |
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482 | } |
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483 | |
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484 | // similarTasks.dump(System.out); |
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485 | |
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486 | List<FlattenInstruction> flattenInstructions = |
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487 | getFlattenInstructions(similarTasks, appData); |
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488 | |
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489 | // for (FlattenInstruction instruction : flattenInstructions) { |
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490 | // instruction.dump(System.out); |
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491 | // } |
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492 | |
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493 | int noOfFlattenedInstances = similarTasks.getLeftHandSide().getInstances().size() + |
---|
494 | similarTasks.getRightHandSide().getInstances().size(); |
---|
495 | |
---|
496 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
---|
497 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> TEST IMPLEMENTATION >>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
---|
498 | List<TaskPath> excludes = new ArrayList<TaskPath>(); |
---|
499 | |
---|
500 | for (FlattenInstruction instruction : flattenInstructions) { |
---|
501 | //System.out.println("exclude " + instruction.path); |
---|
502 | excludes.add(instruction.path); |
---|
503 | } |
---|
504 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
---|
505 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< TEST IMPLEMENTATION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
---|
506 | |
---|
507 | Map<ITaskInstance, IUserSession> flattenedSessions = |
---|
508 | new HashMap<ITaskInstance, IUserSession>(noOfFlattenedInstances); |
---|
509 | flattenInstances |
---|
510 | (similarTasks.getLeftHandSide(), flattenInstructions, flattenedSessions, excludes); |
---|
511 | flattenInstances |
---|
512 | (similarTasks.getRightHandSide(), flattenInstructions, flattenedSessions, excludes); |
---|
513 | |
---|
514 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
---|
515 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> TEST IMPLEMENTATION >>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
---|
516 | /*for (IUserSession session : flattenedSessions.values()) { |
---|
517 | System.out.println("user session {"); |
---|
518 | |
---|
519 | for (ITaskInstance instance : session) { |
---|
520 | System.out.println(instance); |
---|
521 | } |
---|
522 | |
---|
523 | System.out.println("}"); |
---|
524 | }*/ |
---|
525 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
---|
526 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< TEST IMPLEMENTATION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
---|
527 | |
---|
528 | List<IUserSession> flattenedSessionList = |
---|
529 | new LinkedList<IUserSession>(flattenedSessions.values()); |
---|
530 | |
---|
531 | new SequenceForTaskDetectionRule |
---|
532 | (TaskEquality.IDENTICAL, taskFactory, taskBuilder).apply(flattenedSessionList); |
---|
533 | |
---|
534 | Map<ITaskInstance, ITaskInstance> replacements = new HashMap<ITaskInstance, ITaskInstance>(); |
---|
535 | ITask replacementTask = null; |
---|
536 | |
---|
537 | for (Map.Entry<ITaskInstance, IUserSession> entry : flattenedSessions.entrySet()) { |
---|
538 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
---|
539 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> TEST IMPLEMENTATION >>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
---|
540 | // the user sessions were sufficiently equal to have now only one common task as child |
---|
541 | |
---|
542 | if (entry.getValue().size() != 1) { |
---|
543 | //new TaskTreeEncoder().encode(entry.getValue(), System.out, excludes); |
---|
544 | throw new RuntimeException("flattened sessions were not combined as expected"); |
---|
545 | } |
---|
546 | |
---|
547 | if (replacementTask == null) { |
---|
548 | replacementTask = entry.getValue().get(0).getTask(); |
---|
549 | } |
---|
550 | else if (replacementTask != entry.getValue().get(0).getTask()) { |
---|
551 | throw new RuntimeException("two separate replacement tasks were calculated as " + |
---|
552 | "replacement, one for both tasks to be merged"); |
---|
553 | } |
---|
554 | |
---|
555 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
---|
556 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< TEST IMPLEMENTATION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
---|
557 | |
---|
558 | replacements.put(entry.getKey(), entry.getValue().get(0)); |
---|
559 | } |
---|
560 | |
---|
561 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
---|
562 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> TEST IMPLEMENTATION >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
---|
563 | // ((Task) replacementTask).setDescription |
---|
564 | // (replacementTask + " calculated as full replacement for " + |
---|
565 | // similarTasks.getLeftHandSide() + " and " + similarTasks.getRightHandSide()); |
---|
566 | |
---|
567 | int allInstances = similarTasks.getLeftHandSide().getInstances().size() + |
---|
568 | similarTasks.getRightHandSide().getInstances().size(); |
---|
569 | |
---|
570 | if (replacements.size() != allInstances) { |
---|
571 | throw new RuntimeException("number of replacements does not match number of instances"); |
---|
572 | } |
---|
573 | |
---|
574 | /*if (replacements.size() > 0) { |
---|
575 | System.out.println("replacement task is calculated to be: "); |
---|
576 | new TaskTreeEncoder().encode(replacements.values().iterator().next().getTask(), |
---|
577 | System.out); |
---|
578 | }*/ |
---|
579 | |
---|
580 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
---|
581 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< TEST IMPLEMENTATION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
---|
582 | |
---|
583 | |
---|
584 | for (IUserSession session : appData.getSessions()) { |
---|
585 | replaceTaskInstances(session, replacements, similarTasks); |
---|
586 | } |
---|
587 | |
---|
588 | |
---|
589 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
---|
590 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> TEST IMPLEMENTATION >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
---|
591 | if (replacements.size() != 0) { |
---|
592 | for (Map.Entry<ITaskInstance, ITaskInstance> entry : replacements.entrySet()) { |
---|
593 | System.out.println |
---|
594 | ("did not replace instance " + entry.getKey() + " with " + entry.getValue()); |
---|
595 | } |
---|
596 | |
---|
597 | throw new RuntimeException(); |
---|
598 | } |
---|
599 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
---|
600 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< TEST IMPLEMENTATION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
---|
601 | } |
---|
602 | |
---|
603 | /** |
---|
604 | * |
---|
605 | */ |
---|
606 | private List<FlattenInstruction> getFlattenInstructions(SimilarTasks similarTasks, |
---|
607 | RuleApplicationData appData) |
---|
608 | { |
---|
609 | TaskTraversal leftHandSideTraversal = similarTasks.getLeftHandSideTraversal(); |
---|
610 | TaskTraversal rightHandSideTraversal = similarTasks.getRightHandSideTraversal(); |
---|
611 | |
---|
612 | List<FlattenInstruction> result = new LinkedList<FlattenInstruction>(); |
---|
613 | TaskComparator comp = identTaskHandlStrat.getTaskComparator(); |
---|
614 | |
---|
615 | // first create instructions for the deltas |
---|
616 | for (Delta delta : similarTasks.getPatch().getDeltas()) { |
---|
617 | if ((delta.getType() == Delta.TYPE.INSERT) || |
---|
618 | (delta.getType() == Delta.TYPE.DELETE)) |
---|
619 | { |
---|
620 | // System.out.println("handling " + delta.getType()); |
---|
621 | Chunk chunk; |
---|
622 | TaskPath insertAfterPath = null; |
---|
623 | TaskPath insertBeforePath; |
---|
624 | |
---|
625 | if (delta.getType() == Delta.TYPE.INSERT) { |
---|
626 | chunk = delta.getRevised(); |
---|
627 | int pos = delta.getOriginal().getPosition(); |
---|
628 | // System.out.println(" position " + pos); |
---|
629 | |
---|
630 | if (pos > 0) { |
---|
631 | insertAfterPath = leftHandSideTraversal.getTraversalPaths()[pos - 1]; |
---|
632 | } |
---|
633 | insertBeforePath = leftHandSideTraversal.getTraversalPaths()[pos]; |
---|
634 | } |
---|
635 | else { |
---|
636 | chunk = delta.getOriginal(); |
---|
637 | int pos = delta.getRevised().getPosition(); |
---|
638 | if (pos > 0) { |
---|
639 | insertAfterPath = rightHandSideTraversal.getTraversalPaths()[pos - 1]; |
---|
640 | } |
---|
641 | insertBeforePath = rightHandSideTraversal.getTraversalPaths()[pos]; |
---|
642 | } |
---|
643 | |
---|
644 | ITask child = getTaskForChunk(chunk, appData); |
---|
645 | IOptional optional; |
---|
646 | |
---|
647 | if (child instanceof IOptional) { |
---|
648 | optional = (IOptional) child; |
---|
649 | } |
---|
650 | else { |
---|
651 | optional = taskFactory.createNewOptional(); |
---|
652 | taskBuilder.setMarkedTask(optional, child); |
---|
653 | // ((Task) optional).setDescription(optional.getDescription() + |
---|
654 | // " created for " + delta.getType()); |
---|
655 | optional = (IOptional) appData.ensureUnique(optional); |
---|
656 | createReplacementInstructions(chunk, optional, null, result); |
---|
657 | } |
---|
658 | |
---|
659 | // create a flatten instruction for the non-occurrence of the optional |
---|
660 | result.add(new FlattenInstruction(insertAfterPath, insertBeforePath, optional)); |
---|
661 | |
---|
662 | } |
---|
663 | else if (delta.getType() == Delta.TYPE.CHANGE) { |
---|
664 | ITask child1; |
---|
665 | ITask child2; |
---|
666 | |
---|
667 | // check, if the change covers the whole traversal. If so reuse the root task. |
---|
668 | // Otherwise, create intermediate tasks if required representing both sides |
---|
669 | // of changes |
---|
670 | if ((delta.getOriginal().getPosition() == 0) && |
---|
671 | (delta.getOriginal().size() == similarTasks.getLeftHandSideTraversal().size())) |
---|
672 | { |
---|
673 | child1 = similarTasks.getLeftHandSide(); |
---|
674 | } |
---|
675 | else { |
---|
676 | child1 = getTaskForChunk(delta.getOriginal(), appData); |
---|
677 | } |
---|
678 | |
---|
679 | if ((delta.getRevised().getPosition() == 0) && |
---|
680 | (delta.getRevised().size() == similarTasks.getRightHandSideTraversal().size())) |
---|
681 | { |
---|
682 | child2 = similarTasks.getRightHandSide(); |
---|
683 | } |
---|
684 | else { |
---|
685 | child2 = getTaskForChunk(delta.getRevised(), appData); |
---|
686 | } |
---|
687 | |
---|
688 | // check if either of the variants is an iteration or optional of the respective |
---|
689 | // other variant. If so, ensure, that the iteration or optional are preserved |
---|
690 | ITask markedTask1 = (child1 instanceof IMarkingTemporalRelationship) ? |
---|
691 | ((IMarkingTemporalRelationship) child1).getMarkedTask() : null; |
---|
692 | |
---|
693 | ITask markedTask2 = (child2 instanceof IMarkingTemporalRelationship) ? |
---|
694 | ((IMarkingTemporalRelationship) child2).getMarkedTask() : null; |
---|
695 | |
---|
696 | if (comp.equals(markedTask1, child2)) { |
---|
697 | if (child1 instanceof IOptional) { |
---|
698 | createReplacementInstructions |
---|
699 | (delta.getRevised(), (IOptional) child1, null, result); |
---|
700 | } |
---|
701 | else { |
---|
702 | throw new java.lang.UnsupportedOperationException("not implemented yet"); |
---|
703 | } |
---|
704 | } |
---|
705 | else if (comp.equals(markedTask2, child1)) { |
---|
706 | if (child2 instanceof IOptional) { |
---|
707 | createReplacementInstructions |
---|
708 | (delta.getOriginal(), (IOptional) child2, null, result); |
---|
709 | } |
---|
710 | else { |
---|
711 | throw new java.lang.UnsupportedOperationException("not implemented yet"); |
---|
712 | } |
---|
713 | } |
---|
714 | else if ((markedTask1 != null) && (comp.equals(markedTask1, markedTask2))) { |
---|
715 | throw new java.lang.UnsupportedOperationException("not implemented yet"); |
---|
716 | } |
---|
717 | else { |
---|
718 | // its time to create a selection of both variants. If one is already |
---|
719 | // a selection, it is reused and extended, if required. |
---|
720 | |
---|
721 | ITask expectedChild1 = null; |
---|
722 | ITask expectedChild2 = null; |
---|
723 | |
---|
724 | ISelection selection = null; |
---|
725 | if (child1 instanceof ISelection) { |
---|
726 | selection = (ISelection) child1; |
---|
727 | } |
---|
728 | |
---|
729 | if (child2 instanceof ISelection) { |
---|
730 | if (selection == null) { |
---|
731 | // only child 2 is a selection --> extend it with child 1 |
---|
732 | selection = (ISelection) child2; |
---|
733 | addSelectionChildIfRequired(selection, child1); |
---|
734 | expectedChild1 = child1; |
---|
735 | } |
---|
736 | else { |
---|
737 | // both are selections --> extend child 1 with variants of child2 |
---|
738 | for (ITask child : ((ISelection) child2).getChildren()) { |
---|
739 | addSelectionChildIfRequired(selection, child); |
---|
740 | } |
---|
741 | } |
---|
742 | } |
---|
743 | else if (selection != null) { |
---|
744 | // only child 1 is a selection --> extend it with child 2 |
---|
745 | addSelectionChildIfRequired(selection, child2); |
---|
746 | expectedChild2 = child2; |
---|
747 | } |
---|
748 | else if (selection == null) { |
---|
749 | // it may also be the case, that one is a child of a selection and occurs |
---|
750 | // only as such and nowhere else. Then the parent selection is reused and |
---|
751 | // extended. |
---|
752 | for (ITask candidate : appData.taskModel.getTasks()) { |
---|
753 | if (candidate instanceof ISelection) { |
---|
754 | selection = (ISelection) candidate; |
---|
755 | ITask existingChildTask = null; |
---|
756 | |
---|
757 | if (selection.getChildren().contains(child1)) { |
---|
758 | existingChildTask = child1; |
---|
759 | } |
---|
760 | else if (selection.getChildren().contains(child2)) { |
---|
761 | existingChildTask = child2; |
---|
762 | } |
---|
763 | |
---|
764 | if (existingChildTask != null) { |
---|
765 | int noOfInstances = 0; |
---|
766 | |
---|
767 | for (ITaskInstance instance : selection.getInstances()) { |
---|
768 | ITaskInstance childInstance = |
---|
769 | ((ISelectionInstance) instance).getChild(); |
---|
770 | |
---|
771 | if (childInstance.getTask() == existingChildTask) { |
---|
772 | noOfInstances++; |
---|
773 | } |
---|
774 | } |
---|
775 | |
---|
776 | if (noOfInstances < existingChildTask.getInstances().size()) { |
---|
777 | // not all instances of the existing child task are covered |
---|
778 | // by the parent selection. Hence, throw selection away and |
---|
779 | // search for another one |
---|
780 | selection = null; |
---|
781 | } |
---|
782 | else { |
---|
783 | // found a parent selection --> reuse it but add the new |
---|
784 | // variant |
---|
785 | if (child1 == existingChildTask) { |
---|
786 | addSelectionChildIfRequired(selection, child2); |
---|
787 | } |
---|
788 | else { |
---|
789 | addSelectionChildIfRequired(selection, child1); |
---|
790 | } |
---|
791 | expectedChild1 = child1; |
---|
792 | expectedChild2 = child2; |
---|
793 | break; |
---|
794 | } |
---|
795 | } |
---|
796 | else { |
---|
797 | selection = null; |
---|
798 | } |
---|
799 | } |
---|
800 | } |
---|
801 | |
---|
802 | if (selection == null) { |
---|
803 | // none of both is already a selection, so create a new one with both |
---|
804 | // of the children as variants |
---|
805 | selection = taskFactory.createNewSelection(); |
---|
806 | // ((Task) selection).setDescription(selection.getDescription() + |
---|
807 | // " created for " + delta.getType()); |
---|
808 | taskBuilder.addChild(selection, child1); |
---|
809 | taskBuilder.addChild(selection, child2); |
---|
810 | expectedChild1 = child1; |
---|
811 | expectedChild2 = child2; |
---|
812 | } |
---|
813 | } |
---|
814 | |
---|
815 | selection = (ISelection) appData.ensureUnique(selection); |
---|
816 | |
---|
817 | createReplacementInstructions |
---|
818 | (delta.getOriginal(), selection, expectedChild1, result); |
---|
819 | createReplacementInstructions |
---|
820 | (delta.getRevised(), selection, expectedChild2, result); |
---|
821 | } |
---|
822 | } |
---|
823 | } |
---|
824 | |
---|
825 | // create instructions to harmonize marking temporal relationships for untraversed tasks |
---|
826 | int leftHandSideIndex = 0; |
---|
827 | int rightHandSideIndex = 0; |
---|
828 | |
---|
829 | OUTER: |
---|
830 | while (leftHandSideIndex < leftHandSideTraversal.getTraversalPaths().length) { |
---|
831 | for (Delta delta : similarTasks.getPatch().getDeltas()) { |
---|
832 | if (delta.getOriginal().getPosition() == leftHandSideIndex) { |
---|
833 | if (delta.getType() == Delta.TYPE.INSERT) { |
---|
834 | rightHandSideIndex += delta.getRevised().size(); |
---|
835 | // do not continue OUTER to ensure, that the left hand side and the |
---|
836 | // right hand side coming directly after the insert are handled |
---|
837 | } |
---|
838 | else if (delta.getType() == Delta.TYPE.DELETE) { |
---|
839 | leftHandSideIndex += delta.getOriginal().size(); |
---|
840 | continue OUTER; |
---|
841 | } |
---|
842 | else if (delta.getType() == Delta.TYPE.CHANGE) { |
---|
843 | leftHandSideIndex += delta.getOriginal().size(); |
---|
844 | rightHandSideIndex += delta.getRevised().size(); |
---|
845 | continue OUTER; |
---|
846 | } |
---|
847 | } |
---|
848 | } |
---|
849 | |
---|
850 | TaskPath leftPath = leftHandSideTraversal.getTraversalPaths()[leftHandSideIndex]; |
---|
851 | TaskPath rightPath = rightHandSideTraversal.getTraversalPaths()[rightHandSideIndex]; |
---|
852 | |
---|
853 | if (comp.equals(leftPath.getLast(), rightPath.getLast())) { |
---|
854 | if (leftPath.getTask(leftPath.size() - 2) instanceof IOptional) { |
---|
855 | IOptional optional = (IOptional) leftPath.getTask(leftPath.size() - 2); |
---|
856 | result.add |
---|
857 | (new FlattenInstruction(leftPath.subPath(0, leftPath.size()), optional)); |
---|
858 | |
---|
859 | result.add(new FlattenInstruction(rightPath, optional)); |
---|
860 | } |
---|
861 | else if (rightPath.getTask(rightPath.size() - 2) instanceof IOptional) { |
---|
862 | IOptional optional = (IOptional) rightPath.getTask(rightPath.size() - 2); |
---|
863 | result.add |
---|
864 | (new FlattenInstruction(rightPath.subPath(0, rightPath.size()), optional)); |
---|
865 | |
---|
866 | result.add(new FlattenInstruction(leftPath, optional)); |
---|
867 | } |
---|
868 | } |
---|
869 | |
---|
870 | leftHandSideIndex++; |
---|
871 | rightHandSideIndex++; |
---|
872 | } |
---|
873 | |
---|
874 | |
---|
875 | // then create instructions for what stays the same |
---|
876 | OUTER: |
---|
877 | for (TaskPath path : leftHandSideTraversal.getTraversalPaths()) { |
---|
878 | for (FlattenInstruction instruction : result) { |
---|
879 | if ((instruction.getInstruction() != FlattenInstruction.Instruction.INTEGRATE_OPTIONAL) && |
---|
880 | (instruction.matches(path))) |
---|
881 | { |
---|
882 | continue OUTER; |
---|
883 | } |
---|
884 | } |
---|
885 | |
---|
886 | result.add(new FlattenInstruction(path)); |
---|
887 | } |
---|
888 | |
---|
889 | OUTER: |
---|
890 | for (TaskPath path : rightHandSideTraversal.getTraversalPaths()) { |
---|
891 | for (FlattenInstruction instruction : result) { |
---|
892 | if ((instruction.getInstruction() != FlattenInstruction.Instruction.INTEGRATE_OPTIONAL) && |
---|
893 | (instruction.matches(path))) |
---|
894 | { |
---|
895 | continue OUTER; |
---|
896 | } |
---|
897 | } |
---|
898 | |
---|
899 | result.add(new FlattenInstruction(path)); |
---|
900 | } |
---|
901 | |
---|
902 | return result; |
---|
903 | } |
---|
904 | |
---|
905 | /** |
---|
906 | * |
---|
907 | */ |
---|
908 | private void addSelectionChildIfRequired(ISelection selection, ITask child) { |
---|
909 | for (ITask candidate : selection.getChildren()) { |
---|
910 | if (identTaskHandlStrat.getTaskComparator().equals(candidate, child)) { |
---|
911 | return; |
---|
912 | } |
---|
913 | } |
---|
914 | |
---|
915 | taskBuilder.addChild(selection, child); |
---|
916 | } |
---|
917 | |
---|
918 | /** |
---|
919 | * |
---|
920 | */ |
---|
921 | private ITask getTaskForChunk(Chunk chunk, RuleApplicationData appData) { |
---|
922 | if (chunk.size() == 1) { |
---|
923 | TaskPath path = (TaskPath) chunk.getLines().get(0); |
---|
924 | return path.getTask(path.size() - 1); |
---|
925 | } |
---|
926 | else { |
---|
927 | ISequence task = taskFactory.createNewSequence(); |
---|
928 | // ((Task) task).setDescription(task.getDescription() + |
---|
929 | // " created to represent a chunk"); |
---|
930 | |
---|
931 | for (Object pathObj : chunk.getLines()) { |
---|
932 | TaskPath path = (TaskPath) pathObj; |
---|
933 | taskBuilder.addChild(task, path.getLast()); |
---|
934 | } |
---|
935 | |
---|
936 | return appData.ensureUnique(task); |
---|
937 | } |
---|
938 | } |
---|
939 | |
---|
940 | /** |
---|
941 | * |
---|
942 | */ |
---|
943 | private void createReplacementInstructions(Chunk chunk, |
---|
944 | ITask replacement, |
---|
945 | ITask selectedChild, |
---|
946 | List<FlattenInstruction> result) |
---|
947 | { |
---|
948 | // create a flatten instruction for the occurrence of the replacement |
---|
949 | for (Object pathObj : chunk.getLines()) { |
---|
950 | TaskPath path = (TaskPath) pathObj; |
---|
951 | |
---|
952 | if (replacement instanceof IOptional) { |
---|
953 | result.add(new FlattenInstruction(path, (IOptional) replacement)); |
---|
954 | } |
---|
955 | else if (replacement instanceof ISelection) { |
---|
956 | result.add |
---|
957 | (new FlattenInstruction(path, (ISelection) replacement, selectedChild)); |
---|
958 | } |
---|
959 | } |
---|
960 | } |
---|
961 | |
---|
962 | /** |
---|
963 | * |
---|
964 | */ |
---|
965 | private void flattenInstances(ITask task, |
---|
966 | List<FlattenInstruction> flattenInstructions, |
---|
967 | Map<ITaskInstance, IUserSession> flattenedSessions, |
---|
968 | List<TaskPath> excludes) |
---|
969 | { |
---|
970 | //int i = 0; |
---|
971 | for (ITaskInstance instance : task.getInstances()) { |
---|
972 | /*System.out.println("flattening instance " + i++ + " of task " + task); |
---|
973 | new TaskTreeEncoder().encode(instance, System.out, excludes);*/ |
---|
974 | |
---|
975 | TaskPath taskPath = new TaskPath(); |
---|
976 | taskPath.add(instance.getTask(), 0); |
---|
977 | IUserSession session = taskFactory.createUserSession(); |
---|
978 | flattenInstance(instance, taskPath, flattenInstructions, session, |
---|
979 | new LinkedList<TaskPath>()); |
---|
980 | |
---|
981 | //new TaskTreeEncoder().encode(session, System.out, excludes); |
---|
982 | |
---|
983 | flattenedSessions.put(instance, session); |
---|
984 | } |
---|
985 | } |
---|
986 | |
---|
987 | /** |
---|
988 | * |
---|
989 | */ |
---|
990 | private void flattenInstance(ITaskInstance instance, |
---|
991 | TaskPath taskPath, |
---|
992 | List<FlattenInstruction> flattenInstructions, |
---|
993 | IUserSession session, |
---|
994 | List<TaskPath> previousPaths) |
---|
995 | { |
---|
996 | |
---|
997 | TaskComparator comp = identTaskHandlStrat.getTaskComparator(); |
---|
998 | |
---|
999 | // System.out.println("applying integrate optional instructions on " + taskPath); |
---|
1000 | |
---|
1001 | for (FlattenInstruction instruction : flattenInstructions) { |
---|
1002 | if ((instruction.getInstruction() == FlattenInstruction.Instruction.INTEGRATE_OPTIONAL) && |
---|
1003 | (instruction.matches(taskPath))) |
---|
1004 | { |
---|
1005 | // System.out.print("found instruction "); |
---|
1006 | // instruction.dump(System.out); |
---|
1007 | TaskPath previousPath = previousPaths.size() > 0 ? |
---|
1008 | previousPaths.get(previousPaths.size() - 1) : null; |
---|
1009 | |
---|
1010 | if (pathsMatch(instruction.getPrecedingPath(), previousPath)) { |
---|
1011 | IOptional optional = instruction.getOptional(); |
---|
1012 | IOptionalInstance optionalInstance = |
---|
1013 | taskFactory.createNewTaskInstance(optional); |
---|
1014 | taskBuilder.addTaskInstance(session, optionalInstance); |
---|
1015 | } |
---|
1016 | |
---|
1017 | break; |
---|
1018 | } |
---|
1019 | } |
---|
1020 | |
---|
1021 | boolean instanceHandled = false; |
---|
1022 | // System.out.println("applying other instructions on " + taskPath); |
---|
1023 | |
---|
1024 | for (FlattenInstruction instruction : flattenInstructions) { |
---|
1025 | if (instruction.matches(taskPath)) { |
---|
1026 | // System.out.print("found instruction "); |
---|
1027 | // instruction.dump(System.out); |
---|
1028 | |
---|
1029 | switch (instruction.getInstruction()) { |
---|
1030 | case DONT_TRAVERSE: { |
---|
1031 | if (instance != null) { |
---|
1032 | taskBuilder.addTaskInstance(session, instance); |
---|
1033 | } |
---|
1034 | instanceHandled = true; |
---|
1035 | break; |
---|
1036 | } |
---|
1037 | case MAKE_OPTIONAL: { |
---|
1038 | instanceHandled = true; |
---|
1039 | |
---|
1040 | if (instance == null) { |
---|
1041 | break; |
---|
1042 | } |
---|
1043 | |
---|
1044 | IOptional optional = instruction.getOptional(); |
---|
1045 | |
---|
1046 | if (comp.equals(optional, instance.getTask())) { |
---|
1047 | // the instance is already an instance of the correct optional --> reuse |
---|
1048 | taskBuilder.addTaskInstance(session, instance); |
---|
1049 | } |
---|
1050 | else if (comp.equals(optional.getMarkedTask(), instance.getTask())) { |
---|
1051 | IOptionalInstance optionalInstance = |
---|
1052 | taskFactory.createNewTaskInstance(optional); |
---|
1053 | taskBuilder.setChild(optionalInstance, instance); |
---|
1054 | taskBuilder.addTaskInstance(session, optionalInstance); |
---|
1055 | } |
---|
1056 | else if (optional.getMarkedTask() instanceof ISequence) { |
---|
1057 | // first check, if the instance was already created, if not create it |
---|
1058 | ISequenceInstance sequenceInstance = ensureSequenceChildInstanceFor |
---|
1059 | (optional, (ISequence) optional.getMarkedTask(), session); |
---|
1060 | |
---|
1061 | taskBuilder.addChild(sequenceInstance, instance); |
---|
1062 | } |
---|
1063 | break; |
---|
1064 | } |
---|
1065 | case MAKE_SELECTION: { |
---|
1066 | instanceHandled = true; |
---|
1067 | |
---|
1068 | if (instance == null) { |
---|
1069 | break; |
---|
1070 | } |
---|
1071 | |
---|
1072 | ISelection selection = instruction.getSelection(); |
---|
1073 | |
---|
1074 | if (comp.equals(instruction.getSelectedChild(), instance.getTask())) { |
---|
1075 | ISelectionInstance selectionInstance = |
---|
1076 | taskFactory.createNewTaskInstance(selection); |
---|
1077 | taskBuilder.setChild(selectionInstance, instance); |
---|
1078 | taskBuilder.addTaskInstance(session, selectionInstance); |
---|
1079 | } |
---|
1080 | else if (instruction.getSelectedChild() == null) { |
---|
1081 | // both variants were already selections. They will have been merged. |
---|
1082 | // Hence we can reuse the child instances of the existing selection |
---|
1083 | // instances. |
---|
1084 | if (comp.equals(instance.getTask(), selection)) { |
---|
1085 | taskBuilder.addTaskInstance(session, instance); |
---|
1086 | } |
---|
1087 | else { |
---|
1088 | ISelectionInstance selectionInstance = |
---|
1089 | taskFactory.createNewTaskInstance(selection); |
---|
1090 | taskBuilder.setChild(selectionInstance, |
---|
1091 | ((ISelectionInstance) instance).getChild()); |
---|
1092 | taskBuilder.addTaskInstance(session, selectionInstance); |
---|
1093 | |
---|
1094 | taskBuilder.discardTaskInstance(instance); |
---|
1095 | } |
---|
1096 | } |
---|
1097 | else if (instruction.getSelectedChild() instanceof ISequence) { |
---|
1098 | // first check, if the instance was already created, if not create it |
---|
1099 | ISequenceInstance sequenceInstance = ensureSequenceChildInstanceFor |
---|
1100 | (selection, (ISequence) instruction.getSelectedChild(), session); |
---|
1101 | |
---|
1102 | taskBuilder.addChild(sequenceInstance, instance); |
---|
1103 | } |
---|
1104 | |
---|
1105 | break; |
---|
1106 | } |
---|
1107 | case INTEGRATE_OPTIONAL: { |
---|
1108 | // have been applied beforehand |
---|
1109 | break; |
---|
1110 | } |
---|
1111 | default : { |
---|
1112 | throw new RuntimeException("unknown instruction type"); |
---|
1113 | } |
---|
1114 | } |
---|
1115 | } |
---|
1116 | |
---|
1117 | if (instanceHandled) { |
---|
1118 | break; |
---|
1119 | } |
---|
1120 | } |
---|
1121 | |
---|
1122 | if (!instanceHandled) { |
---|
1123 | ITask task = taskPath.getLast(); |
---|
1124 | if (task instanceof IIteration) { |
---|
1125 | taskPath.add(((IIteration) task).getMarkedTask(), 0); |
---|
1126 | |
---|
1127 | if (instance != null) { |
---|
1128 | for (ITaskInstance child : (IIterationInstance) instance) { |
---|
1129 | flattenInstance |
---|
1130 | (child, taskPath, flattenInstructions, session, previousPaths); |
---|
1131 | } |
---|
1132 | } |
---|
1133 | else { |
---|
1134 | flattenInstance(null, taskPath, flattenInstructions, session, previousPaths); |
---|
1135 | } |
---|
1136 | |
---|
1137 | taskPath.removeLast(); |
---|
1138 | } |
---|
1139 | else if (task instanceof ISequence) { |
---|
1140 | List<ITask> children = ((ISequence) task).getChildren(); |
---|
1141 | for (int i = 0; i < children.size(); i++) { |
---|
1142 | ITaskInstance child = null; |
---|
1143 | if (instance != null) { |
---|
1144 | child = ((ISequenceInstance) instance).get(i); |
---|
1145 | } |
---|
1146 | taskPath.add(children.get(i), i); |
---|
1147 | flattenInstance |
---|
1148 | (child, taskPath, flattenInstructions, session, previousPaths); |
---|
1149 | taskPath.removeLast(); |
---|
1150 | } |
---|
1151 | } |
---|
1152 | else if (task instanceof ISelection) { |
---|
1153 | if (instance != null) { |
---|
1154 | taskPath.add(((ISelectionInstance) instance).getChild().getTask(), 0); |
---|
1155 | flattenInstance(((ISelectionInstance) instance).getChild(), taskPath, |
---|
1156 | flattenInstructions, session, previousPaths); |
---|
1157 | taskPath.removeLast(); |
---|
1158 | } |
---|
1159 | else { |
---|
1160 | // check if the selection has any child for which a rule must be considered |
---|
1161 | List<ITask> children = ((ISelection) task).getChildren(); |
---|
1162 | for (int i = 0; i < children.size(); i++) { |
---|
1163 | taskPath.add(children.get(i), i); |
---|
1164 | flattenInstance |
---|
1165 | (null, taskPath, flattenInstructions, session, previousPaths); |
---|
1166 | taskPath.removeLast(); |
---|
1167 | } |
---|
1168 | } |
---|
1169 | } |
---|
1170 | else if (task instanceof IOptional) { |
---|
1171 | taskPath.add(((IOptional) task).getMarkedTask(), 0); |
---|
1172 | ITaskInstance child = null; |
---|
1173 | if (instance != null) { |
---|
1174 | child = ((IOptionalInstance) instance).getChild(); |
---|
1175 | } |
---|
1176 | flattenInstance(child, taskPath, flattenInstructions, session, previousPaths); |
---|
1177 | taskPath.removeLast(); |
---|
1178 | |
---|
1179 | if ((instance != null) && (child == null)) { |
---|
1180 | // add the empty optional instance |
---|
1181 | taskBuilder.addTaskInstance(session, instance); |
---|
1182 | previousPaths.add(new TaskPath(taskPath)); |
---|
1183 | } |
---|
1184 | } |
---|
1185 | else if (instance != null) { |
---|
1186 | taskBuilder.addTaskInstance(session, instance); |
---|
1187 | previousPaths.add(new TaskPath(taskPath)); |
---|
1188 | } |
---|
1189 | } |
---|
1190 | else { |
---|
1191 | previousPaths.add(new TaskPath(taskPath)); |
---|
1192 | } |
---|
1193 | } |
---|
1194 | |
---|
1195 | /** |
---|
1196 | * |
---|
1197 | */ |
---|
1198 | private ISequenceInstance ensureSequenceChildInstanceFor(ITask replacement, |
---|
1199 | ISequence expectedChildSequence, |
---|
1200 | IUserSession session) |
---|
1201 | { |
---|
1202 | // first check, if there is already an instance of the expected sequence. If so, check if |
---|
1203 | // its child is a sequence instance. If not create a new task instance with an appropriate |
---|
1204 | // sequence instance |
---|
1205 | ITaskInstance prevInstance = |
---|
1206 | session.size() > 0 ? session.get(session.size() - 1) : null; |
---|
1207 | |
---|
1208 | ISequenceInstance sequenceInstance = null; |
---|
1209 | |
---|
1210 | if ((prevInstance != null) && |
---|
1211 | (identTaskHandlStrat.getTaskComparator().equals(prevInstance.getTask(), replacement))) |
---|
1212 | { |
---|
1213 | if ((prevInstance instanceof IOptionalInstance) && |
---|
1214 | (((IOptionalInstance) prevInstance).getChild() instanceof ISequenceInstance)) |
---|
1215 | { |
---|
1216 | sequenceInstance = |
---|
1217 | (ISequenceInstance) ((IOptionalInstance) prevInstance).getChild(); |
---|
1218 | } |
---|
1219 | else if ((prevInstance instanceof ISelectionInstance) && |
---|
1220 | (((ISelectionInstance) prevInstance).getChild() instanceof ISequenceInstance)) |
---|
1221 | { |
---|
1222 | sequenceInstance = |
---|
1223 | (ISequenceInstance) ((ISelectionInstance) prevInstance).getChild(); |
---|
1224 | } |
---|
1225 | } |
---|
1226 | |
---|
1227 | // although we found a sequence instance as expected, this instance might already be fully |
---|
1228 | // created and a new (iterated) one must be created. Check for it and handle correctly |
---|
1229 | if ((sequenceInstance != null) && |
---|
1230 | (sequenceInstance.size() == expectedChildSequence.getChildren().size())) |
---|
1231 | { |
---|
1232 | sequenceInstance = null; |
---|
1233 | } |
---|
1234 | |
---|
1235 | if (sequenceInstance == null) { |
---|
1236 | //System.out.println("creating new sequence instance of selected child"); |
---|
1237 | sequenceInstance = taskFactory.createNewTaskInstance(expectedChildSequence); |
---|
1238 | |
---|
1239 | ITaskInstance replacementInstance = null; |
---|
1240 | |
---|
1241 | if (replacement instanceof IOptional) { |
---|
1242 | replacementInstance = taskFactory.createNewTaskInstance((IOptional) replacement); |
---|
1243 | taskBuilder.setChild((IOptionalInstance) replacementInstance, sequenceInstance); |
---|
1244 | } |
---|
1245 | else if (replacement instanceof ISelection) { |
---|
1246 | |
---|
1247 | /*System.out.println("replacement: "); |
---|
1248 | new TaskTreeEncoder().encode(replacement, System.out); |
---|
1249 | |
---|
1250 | System.out.println("expectedChild: "); |
---|
1251 | new TaskTreeEncoder().encode(expectedChildSequence, System.out);*/ |
---|
1252 | |
---|
1253 | replacementInstance = taskFactory.createNewTaskInstance((ISelection) replacement); |
---|
1254 | taskBuilder.setChild((ISelectionInstance) replacementInstance, sequenceInstance); |
---|
1255 | } |
---|
1256 | |
---|
1257 | taskBuilder.addTaskInstance(session, replacementInstance); |
---|
1258 | } |
---|
1259 | |
---|
1260 | return sequenceInstance; |
---|
1261 | } |
---|
1262 | |
---|
1263 | /** |
---|
1264 | * |
---|
1265 | */ |
---|
1266 | private void replaceTaskInstances(ITaskInstanceList taskInstanceList, |
---|
1267 | Map<ITaskInstance, ITaskInstance> replacements, |
---|
1268 | SimilarTasks similarTasks) |
---|
1269 | { |
---|
1270 | for (int i = 0; i < taskInstanceList.size(); i++) { |
---|
1271 | ITaskInstance childInstance = taskInstanceList.get(i); |
---|
1272 | ITaskInstance replacement = replacements.remove(childInstance); |
---|
1273 | |
---|
1274 | if (replacement != null) { |
---|
1275 | |
---|
1276 | // update the model for sequences (others are updated in the calling method) |
---|
1277 | if (taskInstanceList instanceof ISequenceInstance) { |
---|
1278 | ISequence task = ((ISequenceInstance) taskInstanceList).getSequence(); |
---|
1279 | taskBuilder.setChild(task, i, replacement.getTask()); |
---|
1280 | } |
---|
1281 | else if (taskInstanceList instanceof IIterationInstance) { |
---|
1282 | IIteration task = ((IIterationInstance) taskInstanceList).getIteration(); |
---|
1283 | taskBuilder.setMarkedTask(task, replacement.getTask()); |
---|
1284 | } |
---|
1285 | |
---|
1286 | // perform the actual replacement and throw away the instance |
---|
1287 | taskBuilder.setTaskInstance(taskInstanceList, i, replacement); |
---|
1288 | TaskPath path = new TaskPath(); |
---|
1289 | path.add(childInstance.getTask(), 0); |
---|
1290 | discardTaskInstancesNotBelongingToTraversals(childInstance, path, similarTasks); |
---|
1291 | } |
---|
1292 | else { |
---|
1293 | replaceTaskInstances(childInstance, replacements, similarTasks); |
---|
1294 | } |
---|
1295 | } |
---|
1296 | } |
---|
1297 | |
---|
1298 | /** |
---|
1299 | * |
---|
1300 | */ |
---|
1301 | private void replaceTaskInstances(IOptionalInstance optionalInstance, |
---|
1302 | Map<ITaskInstance, ITaskInstance> replacements, |
---|
1303 | SimilarTasks similarTasks) |
---|
1304 | { |
---|
1305 | ITaskInstance childInstance = optionalInstance.getChild(); |
---|
1306 | |
---|
1307 | if (childInstance != null) { |
---|
1308 | ITaskInstance replacement = replacements.remove(childInstance); |
---|
1309 | |
---|
1310 | if (replacement != null) { |
---|
1311 | // do not update the model --> is updated in the calling method |
---|
1312 | |
---|
1313 | // perform the actual replacement and throw away the instance |
---|
1314 | taskBuilder.setMarkedTask(optionalInstance.getOptional(), replacement.getTask()); |
---|
1315 | taskBuilder.setChild(optionalInstance, replacement); |
---|
1316 | TaskPath path = new TaskPath(); |
---|
1317 | path.add(childInstance.getTask(), 0); |
---|
1318 | discardTaskInstancesNotBelongingToTraversals(childInstance, path, similarTasks); |
---|
1319 | } |
---|
1320 | else { |
---|
1321 | replaceTaskInstances(childInstance, replacements, similarTasks); |
---|
1322 | } |
---|
1323 | } |
---|
1324 | } |
---|
1325 | |
---|
1326 | /** |
---|
1327 | * |
---|
1328 | */ |
---|
1329 | private void replaceTaskInstances(ISelectionInstance selectionInstance, |
---|
1330 | Map<ITaskInstance, ITaskInstance> replacements, |
---|
1331 | SimilarTasks similarTasks) |
---|
1332 | { |
---|
1333 | TaskComparator comparator = identTaskHandlStrat.getTaskComparator(); |
---|
1334 | |
---|
1335 | ITaskInstance childInstance = selectionInstance.getChild(); |
---|
1336 | |
---|
1337 | if (childInstance != null) { |
---|
1338 | ITaskInstance replacement = replacements.remove(childInstance); |
---|
1339 | |
---|
1340 | if (replacement != null) { |
---|
1341 | |
---|
1342 | if (replacement instanceof ISelectionInstance) { |
---|
1343 | // if the replacement itself is a selection instance, we cannot add |
---|
1344 | // a selection instance as the child of the parent selection instance. |
---|
1345 | // therefore, we just use the child of the replacement as new child of the |
---|
1346 | // existing selection instance |
---|
1347 | taskBuilder.discardTaskInstance(replacement); |
---|
1348 | replacement = ((ISelectionInstance) replacement).getChild(); |
---|
1349 | } |
---|
1350 | |
---|
1351 | // update the model |
---|
1352 | // we replace all instances of the merged tasks with instances of a new task. |
---|
1353 | // hence, we also have to remove the task of the replaced children from the |
---|
1354 | // available variants of the selection |
---|
1355 | taskBuilder.removeChild(selectionInstance.getSelection(), childInstance.getTask()); |
---|
1356 | |
---|
1357 | boolean found = false; |
---|
1358 | for (ITask child : selectionInstance.getSelection().getChildren()) { |
---|
1359 | if (comparator.equals(child, replacement.getTask())) { |
---|
1360 | found = true; |
---|
1361 | break; |
---|
1362 | } |
---|
1363 | } |
---|
1364 | |
---|
1365 | if (!found) { |
---|
1366 | taskBuilder.addChild(selectionInstance.getSelection(), replacement.getTask()); |
---|
1367 | } |
---|
1368 | |
---|
1369 | // perform the actual replacement and throw away the instance |
---|
1370 | taskBuilder.setChild(selectionInstance, replacement); |
---|
1371 | TaskPath path = new TaskPath(); |
---|
1372 | path.add(childInstance.getTask(), 0); |
---|
1373 | discardTaskInstancesNotBelongingToTraversals(childInstance, path, similarTasks); |
---|
1374 | } |
---|
1375 | else { |
---|
1376 | replaceTaskInstances(childInstance, replacements, similarTasks); |
---|
1377 | } |
---|
1378 | } |
---|
1379 | } |
---|
1380 | |
---|
1381 | /** |
---|
1382 | * |
---|
1383 | */ |
---|
1384 | private void replaceTaskInstances(ITaskInstance childInstance, |
---|
1385 | Map<ITaskInstance, ITaskInstance> replacements, |
---|
1386 | SimilarTasks similarTasks) |
---|
1387 | { |
---|
1388 | if (childInstance instanceof IIterationInstance) { |
---|
1389 | replaceTaskInstances((ITaskInstanceList) childInstance, replacements, similarTasks); |
---|
1390 | } |
---|
1391 | else if (childInstance instanceof IOptionalInstance) { |
---|
1392 | replaceTaskInstances((IOptionalInstance) childInstance, replacements, similarTasks); |
---|
1393 | } |
---|
1394 | else if (childInstance instanceof ISelectionInstance) { |
---|
1395 | replaceTaskInstances((ISelectionInstance) childInstance, replacements, similarTasks); |
---|
1396 | } |
---|
1397 | else if (childInstance instanceof ISequenceInstance) { |
---|
1398 | replaceTaskInstances((ITaskInstanceList) childInstance, replacements, similarTasks); |
---|
1399 | } |
---|
1400 | } |
---|
1401 | |
---|
1402 | /** |
---|
1403 | * |
---|
1404 | */ |
---|
1405 | private void discardTaskInstancesNotBelongingToTraversals(ITaskInstance instance, |
---|
1406 | TaskPath pathToInstance, |
---|
1407 | SimilarTasks similarTasks) |
---|
1408 | { |
---|
1409 | boolean discarded = false; |
---|
1410 | for (TaskPath candidate : similarTasks.getLeftHandSideTraversal().getTraversalPaths()) { |
---|
1411 | if (candidate.size() > pathToInstance.size()) { |
---|
1412 | TaskPath potentialEqualSubPath = candidate.subPath(0, pathToInstance.size()); |
---|
1413 | if (pathsMatch(potentialEqualSubPath, pathToInstance)) { |
---|
1414 | taskBuilder.discardTaskInstance(instance); |
---|
1415 | discarded = true; |
---|
1416 | break; |
---|
1417 | } |
---|
1418 | } |
---|
1419 | } |
---|
1420 | |
---|
1421 | if (!discarded) { |
---|
1422 | for (TaskPath candidate : similarTasks.getRightHandSideTraversal().getTraversalPaths()) { |
---|
1423 | if (candidate.size() > pathToInstance.size()) { |
---|
1424 | TaskPath potentialEqualSubPath = candidate.subPath(0, pathToInstance.size()); |
---|
1425 | if (pathsMatch(potentialEqualSubPath, pathToInstance)) { |
---|
1426 | taskBuilder.discardTaskInstance(instance); |
---|
1427 | discarded = true; |
---|
1428 | break; |
---|
1429 | } |
---|
1430 | } |
---|
1431 | } |
---|
1432 | } |
---|
1433 | |
---|
1434 | if (discarded) { |
---|
1435 | // now also discard the children |
---|
1436 | if (instance instanceof ISequenceInstance) { |
---|
1437 | int index = 0; |
---|
1438 | for (ITaskInstance childInstance : (ITaskInstanceList) instance) { |
---|
1439 | pathToInstance.add(childInstance.getTask(), index++); |
---|
1440 | discardTaskInstancesNotBelongingToTraversals |
---|
1441 | (childInstance, pathToInstance, similarTasks); |
---|
1442 | pathToInstance.removeLast(); |
---|
1443 | } |
---|
1444 | } |
---|
1445 | else if (instance instanceof IIterationInstance) { |
---|
1446 | for (ITaskInstance childInstance : (ITaskInstanceList) instance) { |
---|
1447 | pathToInstance.add(childInstance.getTask(), 0); |
---|
1448 | discardTaskInstancesNotBelongingToTraversals |
---|
1449 | (childInstance, pathToInstance, similarTasks); |
---|
1450 | pathToInstance.removeLast(); |
---|
1451 | } |
---|
1452 | } |
---|
1453 | else if (instance instanceof IOptionalInstance) { |
---|
1454 | ITaskInstance childInstance = ((IOptionalInstance) instance).getChild(); |
---|
1455 | if (childInstance != null) { |
---|
1456 | pathToInstance.add(childInstance.getTask(), 0); |
---|
1457 | discardTaskInstancesNotBelongingToTraversals |
---|
1458 | (childInstance, pathToInstance, similarTasks); |
---|
1459 | pathToInstance.removeLast(); |
---|
1460 | } |
---|
1461 | } |
---|
1462 | else if (instance instanceof ISelectionInstance) { |
---|
1463 | ITaskInstance childInstance = ((ISelectionInstance) instance).getChild(); |
---|
1464 | pathToInstance.add(childInstance.getTask(), 0); |
---|
1465 | discardTaskInstancesNotBelongingToTraversals |
---|
1466 | (childInstance, pathToInstance, similarTasks); |
---|
1467 | pathToInstance.removeLast(); |
---|
1468 | } |
---|
1469 | } |
---|
1470 | } |
---|
1471 | |
---|
1472 | /** |
---|
1473 | * |
---|
1474 | */ |
---|
1475 | private void mergeSubsequentIdenticalMarkingTemporalRelationships(ITaskInstanceList list) { |
---|
1476 | int index = 0; |
---|
1477 | TaskComparator comparator = identTaskHandlStrat.getTaskComparator(); |
---|
1478 | |
---|
1479 | while (index < (list.size() - 1)) { |
---|
1480 | ITaskInstance instance1 = list.get(index); |
---|
1481 | ITaskInstance instance2 = list.get(index + 1); |
---|
1482 | |
---|
1483 | if (comparator.equals(instance1.getTask(), instance2.getTask())) { |
---|
1484 | if (instance1 instanceof IIterationInstance) { |
---|
1485 | // add the children of the second to the first iteration instance and discard |
---|
1486 | // the second |
---|
1487 | for (ITaskInstance child : (IIterationInstance) instance2) { |
---|
1488 | taskBuilder.addChild((IIterationInstance) instance1, child); |
---|
1489 | } |
---|
1490 | |
---|
1491 | taskBuilder.removeTaskInstance(list, index + 1); |
---|
1492 | taskBuilder.discardTaskInstance(instance2); |
---|
1493 | } |
---|
1494 | else if (instance1 instanceof IOptionalInstance) { |
---|
1495 | ITaskInstance optionalChildInstance1 = |
---|
1496 | ((IOptionalInstance) instance1).getChild(); |
---|
1497 | ITaskInstance optionalChildInstance2 = |
---|
1498 | ((IOptionalInstance) instance2).getChild(); |
---|
1499 | |
---|
1500 | if (optionalChildInstance1 == null) { |
---|
1501 | // independent of the second, just remove the first. The second will be the |
---|
1502 | // unique representation |
---|
1503 | taskBuilder.removeTaskInstance(list, index); |
---|
1504 | } |
---|
1505 | else if (optionalChildInstance2 == null) { |
---|
1506 | // remove the second. The first will be the unique representation |
---|
1507 | taskBuilder.removeTaskInstance(list, index + 1); |
---|
1508 | } |
---|
1509 | else if (optionalChildInstance1 instanceof IIterationInstance) { |
---|
1510 | // add all children of the second optional iteration instance to the |
---|
1511 | // first and discard the second |
---|
1512 | for (ITaskInstance child : (IIterationInstance) optionalChildInstance2) { |
---|
1513 | taskBuilder.addChild |
---|
1514 | ((IIterationInstance) optionalChildInstance1, child); |
---|
1515 | } |
---|
1516 | |
---|
1517 | taskBuilder.removeTaskInstance(list, index + 1); |
---|
1518 | taskBuilder.discardTaskInstance(instance2); |
---|
1519 | } |
---|
1520 | else { |
---|
1521 | // both optional children are no iterations --> create an iteration |
---|
1522 | // for them and add them both as children. |
---|
1523 | throw new java.lang.UnsupportedOperationException("not implemented yet"); |
---|
1524 | } |
---|
1525 | } |
---|
1526 | else { |
---|
1527 | index++; |
---|
1528 | } |
---|
1529 | } |
---|
1530 | else { |
---|
1531 | index++; |
---|
1532 | } |
---|
1533 | } |
---|
1534 | |
---|
1535 | for (ITaskInstance child : list) { |
---|
1536 | if (child instanceof ITaskInstanceList) { |
---|
1537 | mergeSubsequentIdenticalMarkingTemporalRelationships((ITaskInstanceList) child); |
---|
1538 | } |
---|
1539 | } |
---|
1540 | } |
---|
1541 | |
---|
1542 | /** |
---|
1543 | * |
---|
1544 | */ |
---|
1545 | private static boolean pathsMatch(TaskPath path1, TaskPath path2) { |
---|
1546 | if (path1 == null) { |
---|
1547 | return path2 == null; |
---|
1548 | } |
---|
1549 | else if ((path2 != null) && (path1.size() == path2.size())) { |
---|
1550 | for (int i = 0; i < path1.size(); i++) { |
---|
1551 | if (!path1.get(i).equals(path2.get(i))) { |
---|
1552 | return false; |
---|
1553 | } |
---|
1554 | } |
---|
1555 | return true; |
---|
1556 | } |
---|
1557 | else { |
---|
1558 | return false; |
---|
1559 | } |
---|
1560 | } |
---|
1561 | |
---|
1562 | /** |
---|
1563 | * |
---|
1564 | */ |
---|
1565 | /*private boolean containsNewTask(ITask task, RuleApplicationData appData) { |
---|
1566 | if (appData.isSelfCreatedTask(task)) { |
---|
1567 | return true; |
---|
1568 | } |
---|
1569 | else if (task instanceof IStructuringTemporalRelationship) { |
---|
1570 | for (ITask child : ((IStructuringTemporalRelationship) task).getChildren()) { |
---|
1571 | if (containsNewTask(child, appData)) { |
---|
1572 | return true; |
---|
1573 | } |
---|
1574 | } |
---|
1575 | } |
---|
1576 | else if (task instanceof IMarkingTemporalRelationship) { |
---|
1577 | return containsNewTask(((IMarkingTemporalRelationship) task).getMarkedTask(), appData); |
---|
1578 | } |
---|
1579 | |
---|
1580 | return false; |
---|
1581 | }*/ |
---|
1582 | |
---|
1583 | /** |
---|
1584 | * |
---|
1585 | */ |
---|
1586 | private class RuleApplicationData { |
---|
1587 | |
---|
1588 | /** |
---|
1589 | * |
---|
1590 | */ |
---|
1591 | private List<IUserSession> sessions; |
---|
1592 | |
---|
1593 | /** |
---|
1594 | * |
---|
1595 | */ |
---|
1596 | private ITaskModel taskModel; |
---|
1597 | |
---|
1598 | /** |
---|
1599 | * |
---|
1600 | */ |
---|
1601 | private MostSimilarTaskDeterminer mostSimilarTasksDeterminer = |
---|
1602 | new MostSimilarTaskDeterminer(identTaskHandlStrat.getTaskComparator()); |
---|
1603 | |
---|
1604 | /** |
---|
1605 | * |
---|
1606 | */ |
---|
1607 | private List<SimilarTasks> mostSimilarTasks; |
---|
1608 | |
---|
1609 | /** |
---|
1610 | * |
---|
1611 | */ |
---|
1612 | private List<ITask> newTasks = new LinkedList<ITask>(); |
---|
1613 | |
---|
1614 | /** |
---|
1615 | * |
---|
1616 | */ |
---|
1617 | private RuleApplicationResult ruleApplicationResult = new RuleApplicationResult(); |
---|
1618 | |
---|
1619 | /** |
---|
1620 | * |
---|
1621 | */ |
---|
1622 | private RuleApplicationData(List<IUserSession> sessions) { |
---|
1623 | this.sessions = sessions; |
---|
1624 | } |
---|
1625 | |
---|
1626 | /** |
---|
1627 | * |
---|
1628 | */ |
---|
1629 | boolean isSelfCreatedTask(ITask task) { |
---|
1630 | for (ITask candidate : newTasks) { |
---|
1631 | if (candidate == task) { |
---|
1632 | return true; |
---|
1633 | } |
---|
1634 | } |
---|
1635 | |
---|
1636 | return false; |
---|
1637 | } |
---|
1638 | |
---|
1639 | /** |
---|
1640 | * @return the mostSimilarTasksDeterminer |
---|
1641 | */ |
---|
1642 | private MostSimilarTaskDeterminer getMostSimilarTasksDeterminer() { |
---|
1643 | return mostSimilarTasksDeterminer; |
---|
1644 | } |
---|
1645 | |
---|
1646 | /** |
---|
1647 | * |
---|
1648 | */ |
---|
1649 | private void markAsAlreadyCondensed(ITask task1, ITask task2) { |
---|
1650 | mostSimilarTasksDeterminer.addComparisonToSkip(task1, task2); |
---|
1651 | } |
---|
1652 | |
---|
1653 | /** |
---|
1654 | * |
---|
1655 | */ |
---|
1656 | private RuleApplicationResult finalizeRuleApplicationResult() { |
---|
1657 | for (ITask newTask : newTasks) { |
---|
1658 | ruleApplicationResult.addNewlyCreatedTask(newTask); |
---|
1659 | |
---|
1660 | if (newTask instanceof IOptional) { |
---|
1661 | if (isSelfCreatedTask(((IOptional) newTask).getMarkedTask()) && |
---|
1662 | (((IOptional) newTask).getMarkedTask() instanceof ISequence)) |
---|
1663 | { |
---|
1664 | ruleApplicationResult.addNewlyCreatedTask |
---|
1665 | (((IOptional) newTask).getMarkedTask()); |
---|
1666 | } |
---|
1667 | } |
---|
1668 | else if (newTask instanceof ISelection) { |
---|
1669 | for (ITask child : ((ISelection) newTask).getChildren()) { |
---|
1670 | if (isSelfCreatedTask(child) && (child instanceof ISequence)) { |
---|
1671 | ruleApplicationResult.addNewlyCreatedTask(child); |
---|
1672 | } |
---|
1673 | } |
---|
1674 | } |
---|
1675 | } |
---|
1676 | |
---|
1677 | |
---|
1678 | return ruleApplicationResult; |
---|
1679 | } |
---|
1680 | |
---|
1681 | /** |
---|
1682 | * @return the tree |
---|
1683 | */ |
---|
1684 | private List<IUserSession> getSessions() { |
---|
1685 | return sessions; |
---|
1686 | } |
---|
1687 | |
---|
1688 | /** |
---|
1689 | * @return the taskModel |
---|
1690 | */ |
---|
1691 | private ITaskModel getTaskModel() { |
---|
1692 | return taskModel; |
---|
1693 | } |
---|
1694 | |
---|
1695 | /** |
---|
1696 | * @param taskModel the taskModel to set |
---|
1697 | */ |
---|
1698 | private void setTaskModel(ITaskModel taskModel) { |
---|
1699 | this.taskModel = taskModel; |
---|
1700 | } |
---|
1701 | |
---|
1702 | /** |
---|
1703 | * @return the orderedDiffLevels |
---|
1704 | */ |
---|
1705 | private List<SimilarTasks> getMostSimilarTasks() { |
---|
1706 | return mostSimilarTasks; |
---|
1707 | } |
---|
1708 | |
---|
1709 | /** |
---|
1710 | * @param orderedDiffLevels the orderedDiffLevels to set |
---|
1711 | */ |
---|
1712 | private void setMostSimilarTasks(List<SimilarTasks> mostSimilarTasks) { |
---|
1713 | this.mostSimilarTasks = mostSimilarTasks; |
---|
1714 | } |
---|
1715 | |
---|
1716 | /** |
---|
1717 | * |
---|
1718 | */ |
---|
1719 | private ITask ensureUnique(ITask task) { |
---|
1720 | // replacements done in this rule are either optionals or selections. So focus on them |
---|
1721 | if (task instanceof IOptional) { |
---|
1722 | for (ITask newTask : newTasks) { |
---|
1723 | if (newTask instanceof IOptional) { |
---|
1724 | ITask child1 = ((IOptional) task).getMarkedTask(); |
---|
1725 | ITask child2 = ((IOptional) newTask).getMarkedTask(); |
---|
1726 | if (createdChildEquals(child1, child2)) { |
---|
1727 | // System.out.println("reusing optional " + newTask + " for " + task); |
---|
1728 | return newTask; |
---|
1729 | } |
---|
1730 | } |
---|
1731 | } |
---|
1732 | } |
---|
1733 | else if (task instanceof ISelection) { |
---|
1734 | for (ITask newTask : newTasks) { |
---|
1735 | if (newTask instanceof ISelection) { |
---|
1736 | List<ITask> children1 = ((ISelection) task).getChildren(); |
---|
1737 | List<ITask> children2 = ((ISelection) newTask).getChildren(); |
---|
1738 | if (createdSelectionChildrenEqual(children1, children2)) { |
---|
1739 | /*System.out.println("reusing selection " + newTask + " for " + task); |
---|
1740 | |
---|
1741 | System.out.println("---------------------------- existing task"); |
---|
1742 | new TaskTreeEncoder().encode(newTask, System.out); |
---|
1743 | |
---|
1744 | System.out.println("---------------------------- completely new task"); |
---|
1745 | new TaskTreeEncoder().encode(task, System.out);*/ |
---|
1746 | |
---|
1747 | return newTask; |
---|
1748 | } |
---|
1749 | } |
---|
1750 | } |
---|
1751 | } |
---|
1752 | else if (task instanceof ISequence) { |
---|
1753 | List<ISequence> allRelevant = new ArrayList<>(); |
---|
1754 | |
---|
1755 | for (ITask candidate : newTasks) { |
---|
1756 | if (candidate instanceof ISequence) { |
---|
1757 | allRelevant.add((ISequence) candidate); |
---|
1758 | } |
---|
1759 | } |
---|
1760 | |
---|
1761 | for (ITask candidate : taskModel.getTasks()) { |
---|
1762 | if (candidate instanceof ISequence) { |
---|
1763 | allRelevant.add((ISequence) candidate); |
---|
1764 | } |
---|
1765 | } |
---|
1766 | |
---|
1767 | for (ISequence candidate : allRelevant) { |
---|
1768 | List<ITask> children1 = ((ISequence) task).getChildren(); |
---|
1769 | List<ITask> children2 = ((ISequence) candidate).getChildren(); |
---|
1770 | |
---|
1771 | boolean equal = false; |
---|
1772 | if (children1.size() == children2.size()) { |
---|
1773 | equal = true; |
---|
1774 | for (int i = 0; i < children1.size(); i++) { |
---|
1775 | if (children1.get(i) != children2.get(i)) { |
---|
1776 | equal = false; |
---|
1777 | break; |
---|
1778 | } |
---|
1779 | } |
---|
1780 | } |
---|
1781 | |
---|
1782 | if (equal) { |
---|
1783 | // System.out.println("reusing sequence " + candidate + " for " + task); |
---|
1784 | return candidate; |
---|
1785 | } |
---|
1786 | } |
---|
1787 | } |
---|
1788 | |
---|
1789 | newTasks.add(task); |
---|
1790 | |
---|
1791 | return task; |
---|
1792 | } |
---|
1793 | |
---|
1794 | /** |
---|
1795 | * |
---|
1796 | */ |
---|
1797 | private boolean createdSelectionChildrenEqual(List<ITask> children1, List<ITask> children2) { |
---|
1798 | if (children1.size() != children2.size()) { |
---|
1799 | return false; |
---|
1800 | } |
---|
1801 | |
---|
1802 | for (ITask child1 : children1) { |
---|
1803 | boolean found = false; |
---|
1804 | |
---|
1805 | for (ITask child2 : children2) { |
---|
1806 | if (createdChildEquals(child1, child2)) { |
---|
1807 | found = true; |
---|
1808 | break; |
---|
1809 | } |
---|
1810 | } |
---|
1811 | |
---|
1812 | if (!found) { |
---|
1813 | return false; |
---|
1814 | } |
---|
1815 | } |
---|
1816 | |
---|
1817 | return true; |
---|
1818 | } |
---|
1819 | |
---|
1820 | /** |
---|
1821 | * |
---|
1822 | */ |
---|
1823 | private boolean createdChildEquals(ITask child1, ITask child2) { |
---|
1824 | if (child1 == child2) { |
---|
1825 | return true; |
---|
1826 | } |
---|
1827 | else if (!isSelfCreatedTask(child1) && !isSelfCreatedTask(child2)) { |
---|
1828 | // the simple comparison can not work if the tasks are not self created |
---|
1829 | return false; |
---|
1830 | } |
---|
1831 | else if ((child1 instanceof ISequence) && (child2 instanceof ISequence)) { |
---|
1832 | ISequence sequence1 = (ISequence) child1; |
---|
1833 | ISequence sequence2 = (ISequence) child2; |
---|
1834 | |
---|
1835 | if (sequence1.getChildren().size() != sequence2.getChildren().size()) { |
---|
1836 | return false; |
---|
1837 | } |
---|
1838 | |
---|
1839 | for (int i = 0; i < sequence1.getChildren().size(); i++) { |
---|
1840 | if (sequence1.getChildren().get(i) != sequence2.getChildren().get(i)) { |
---|
1841 | return false; |
---|
1842 | } |
---|
1843 | } |
---|
1844 | |
---|
1845 | return true; |
---|
1846 | } |
---|
1847 | else { |
---|
1848 | return false; |
---|
1849 | } |
---|
1850 | } |
---|
1851 | } |
---|
1852 | |
---|
1853 | /** |
---|
1854 | * |
---|
1855 | */ |
---|
1856 | private static class FlattenInstruction { |
---|
1857 | |
---|
1858 | /** |
---|
1859 | * |
---|
1860 | */ |
---|
1861 | private enum Instruction { DONT_TRAVERSE, MAKE_OPTIONAL, MAKE_SELECTION, INTEGRATE_OPTIONAL }; |
---|
1862 | |
---|
1863 | /** */ |
---|
1864 | private TaskPath path; |
---|
1865 | |
---|
1866 | /** */ |
---|
1867 | private TaskPath precedingPath; |
---|
1868 | |
---|
1869 | /** */ |
---|
1870 | private Instruction instruction; |
---|
1871 | |
---|
1872 | /** */ |
---|
1873 | private IOptional optional = null; |
---|
1874 | |
---|
1875 | /** */ |
---|
1876 | private ISelection selection = null; |
---|
1877 | |
---|
1878 | /** */ |
---|
1879 | private ITask selectedChild = null; |
---|
1880 | |
---|
1881 | /** |
---|
1882 | * |
---|
1883 | */ |
---|
1884 | private FlattenInstruction(TaskPath path) { |
---|
1885 | this.path = path; |
---|
1886 | this.instruction = Instruction.DONT_TRAVERSE; |
---|
1887 | } |
---|
1888 | |
---|
1889 | /** |
---|
1890 | * |
---|
1891 | */ |
---|
1892 | private FlattenInstruction(TaskPath path, IOptional optional) { |
---|
1893 | this.path = path; |
---|
1894 | this.instruction = Instruction.MAKE_OPTIONAL; |
---|
1895 | this.optional = optional; |
---|
1896 | } |
---|
1897 | |
---|
1898 | /** |
---|
1899 | * |
---|
1900 | */ |
---|
1901 | private FlattenInstruction(TaskPath path, ISelection selection, ITask selectedChild) { |
---|
1902 | this.path = path; |
---|
1903 | this.instruction = Instruction.MAKE_SELECTION; |
---|
1904 | this.selection = selection; |
---|
1905 | this.selectedChild = selectedChild; |
---|
1906 | } |
---|
1907 | |
---|
1908 | /** |
---|
1909 | * |
---|
1910 | */ |
---|
1911 | private FlattenInstruction(TaskPath precedingPath, |
---|
1912 | TaskPath path, |
---|
1913 | IOptional optional) |
---|
1914 | { |
---|
1915 | this.path = path; |
---|
1916 | this.precedingPath = precedingPath; |
---|
1917 | this.instruction = Instruction.INTEGRATE_OPTIONAL; |
---|
1918 | this.optional = optional; |
---|
1919 | } |
---|
1920 | |
---|
1921 | /** |
---|
1922 | * |
---|
1923 | */ |
---|
1924 | IOptional getOptional() { |
---|
1925 | return optional; |
---|
1926 | } |
---|
1927 | |
---|
1928 | |
---|
1929 | /** |
---|
1930 | * @return the selection |
---|
1931 | */ |
---|
1932 | ISelection getSelection() { |
---|
1933 | return selection; |
---|
1934 | } |
---|
1935 | |
---|
1936 | /** |
---|
1937 | * @return the selectedChild |
---|
1938 | */ |
---|
1939 | ITask getSelectedChild() { |
---|
1940 | return selectedChild; |
---|
1941 | } |
---|
1942 | |
---|
1943 | /** |
---|
1944 | * @return the instruction |
---|
1945 | */ |
---|
1946 | Instruction getInstruction() { |
---|
1947 | return instruction; |
---|
1948 | } |
---|
1949 | |
---|
1950 | /** |
---|
1951 | * @return the precedingPath |
---|
1952 | */ |
---|
1953 | TaskPath getPrecedingPath() { |
---|
1954 | return precedingPath; |
---|
1955 | } |
---|
1956 | |
---|
1957 | /** |
---|
1958 | * |
---|
1959 | */ |
---|
1960 | boolean matches(TaskPath path) { |
---|
1961 | return pathsMatch(this.path, path); |
---|
1962 | } |
---|
1963 | |
---|
1964 | |
---|
1965 | // /** |
---|
1966 | // * |
---|
1967 | // */ |
---|
1968 | // void dump(PrintStream out) { |
---|
1969 | // for (int i = 0; i < path.size(); i++) { |
---|
1970 | // out.print("-->"); |
---|
1971 | // out.print(path.getTask(i).getId()); |
---|
1972 | // out.print('('); |
---|
1973 | // out.print(path.get(i).getIndex()); |
---|
1974 | // out.print(')'); |
---|
1975 | // } |
---|
1976 | // |
---|
1977 | // out.print(" "); |
---|
1978 | // out.print(instruction); |
---|
1979 | // |
---|
1980 | // out.println(); |
---|
1981 | // } |
---|
1982 | |
---|
1983 | } |
---|
1984 | |
---|
1985 | } |
---|