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.io.PrintStream; |
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18 | import java.util.ArrayList; |
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19 | import java.util.Collection; |
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20 | import java.util.HashMap; |
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21 | import java.util.Iterator; |
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22 | import java.util.LinkedList; |
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23 | import java.util.List; |
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24 | import java.util.Map; |
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25 | import java.util.logging.Level; |
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26 | |
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27 | import de.ugoe.cs.autoquest.tasktrees.taskequality.TaskEquality; |
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28 | import de.ugoe.cs.autoquest.tasktrees.temporalrelation.utils.MostSimilarTaskDeterminer; |
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29 | import de.ugoe.cs.autoquest.tasktrees.temporalrelation.utils.SimilarTasks; |
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30 | import de.ugoe.cs.autoquest.tasktrees.temporalrelation.utils.TaskTraversal; |
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31 | import de.ugoe.cs.autoquest.tasktrees.treeifc.IIteration; |
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32 | import de.ugoe.cs.autoquest.tasktrees.treeifc.IIterationInstance; |
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33 | import de.ugoe.cs.autoquest.tasktrees.treeifc.IMarkingTemporalRelationship; |
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34 | import de.ugoe.cs.autoquest.tasktrees.treeifc.IOptional; |
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35 | import de.ugoe.cs.autoquest.tasktrees.treeifc.IOptionalInstance; |
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36 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ISelection; |
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37 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ISelectionInstance; |
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38 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ISequence; |
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39 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ISequenceInstance; |
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40 | import de.ugoe.cs.autoquest.tasktrees.treeifc.IStructuringTemporalRelationship; |
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41 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITask; |
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42 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskBuilder; |
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43 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskFactory; |
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44 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskInstance; |
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45 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskInstanceList; |
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46 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskModel; |
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47 | import de.ugoe.cs.autoquest.tasktrees.treeifc.IUserSession; |
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48 | import de.ugoe.cs.autoquest.tasktrees.treeifc.TaskPath; |
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49 | import de.ugoe.cs.util.console.Console; |
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50 | import difflib.Chunk; |
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51 | import difflib.Delta; |
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52 | |
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53 | /** |
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54 | * <p> |
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55 | * This rule performs a condensing of a task tree. It searches for similar tasks and merges them |
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56 | * if possible in to one task with different execution variants. Hence, this rule detects selections |
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57 | * and optionals. |
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58 | * </p> |
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59 | * <p> |
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60 | * The similarity of tasks is determined by comparing task traversals. A task traversal is an |
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61 | * ordered list of the leaf nodes of a task. This is similar to performing a minimal execution of |
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62 | * the task. The task traversals of two tasks are compared using string comparison algorithms. The |
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63 | * less differences the lists have, the more similar they are. |
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64 | * </p> |
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65 | * <p> |
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66 | * If two tasks are similar, they are merged. Merging is done based on the differences between |
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67 | * the task traversals. Two tasks are merged based on their instances. First, all instances of both |
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68 | * tasks are flattened. Instances of selections or commonalities of both tasks stay unflattened. |
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69 | * Then the lists resulting from this flattening are extended with instances of optionals and |
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70 | * selections which are introduced where required. Finally, the instances are put together to a |
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71 | * single task again by applying the {@link SequenceForTaskDetectionRule} on them. |
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72 | * </p> |
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73 | * <p> |
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74 | * Merging has to consider several specific situations. E.g., tasks may look similar but due to |
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75 | * iterations, they can not be merged correctly. Here, the rule ensures, that these so called |
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76 | * interleaving iterations are detected, not traversed when traversing a task and its instances, |
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77 | * and, therefore, preserved. |
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78 | * </p> |
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79 | * <p> |
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80 | * All details about this rule are described in the extended ACHI2014 paper of Harms "Trace-based |
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81 | * task tree generation". The extended paper was submitted to the IntSys IARIA Journal. |
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82 | * </p> |
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83 | * |
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84 | * @author Patrick Harms |
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85 | */ |
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86 | class CondenseSimilarTasksRule implements ISessionScopeRule { |
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87 | |
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88 | /** |
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89 | * <p> |
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90 | * the task factory to be used for creating substructures for the temporal |
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91 | * relationships identified during rule application |
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92 | * </p> |
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93 | */ |
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94 | private ITaskFactory taskFactory; |
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95 | /** |
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96 | * <p> |
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97 | * the task builder to be used for creating substructures for the temporal relationships |
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98 | * identified during rule application |
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99 | * </p> |
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100 | */ |
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101 | private ITaskBuilder taskBuilder; |
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102 | |
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103 | /** |
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104 | * <p> |
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105 | * the task handling strategy to be used for comparing tasks during iteration detection an trie |
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106 | * generation, i.e., after the tasks are harmonized |
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107 | * </p> |
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108 | */ |
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109 | private TaskHandlingStrategy identTaskHandlStrat; |
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110 | |
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111 | /** |
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112 | * <p> |
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113 | * instantiates the rule and initializes it with a task equality to be considered when |
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114 | * comparing tasks as well as a task factory and builder to be used for creating task |
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115 | * structures. |
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116 | * </p> |
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117 | * |
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118 | * @param minimalTaskEquality the task equality to be considered when comparing tasks |
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119 | * @param taskFactory the task factory to be used for creating substructures |
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120 | * @param taskBuilder the task builder to be used for creating substructures |
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121 | */ |
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122 | CondenseSimilarTasksRule(TaskEquality minimalTaskEquality, |
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123 | ITaskFactory taskFactory, |
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124 | ITaskBuilder taskBuilder) |
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125 | { |
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126 | this.taskFactory = taskFactory; |
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127 | this.taskBuilder = taskBuilder; |
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128 | |
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129 | this.identTaskHandlStrat = new TaskHandlingStrategy(TaskEquality.IDENTICAL); |
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130 | } |
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131 | |
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132 | /* (non-Javadoc) |
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133 | * @see java.lang.Object#toString() |
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134 | */ |
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135 | @Override |
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136 | public String toString() { |
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137 | return "CondenseSimilarTasksRule"; |
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138 | } |
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139 | |
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140 | /* (non-Javadoc) |
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141 | * @see de.ugoe.cs.autoquest.tasktrees.temporalrelation.ISessionScopeRule#apply(java.util.List) |
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142 | */ |
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143 | @Override |
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144 | public RuleApplicationResult apply(List<IUserSession> sessions) { |
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145 | |
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146 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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147 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> TEST IMPLEMENTATION >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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148 | /*final List<IEventTaskInstance> formerInstances = new ArrayList<>(); |
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149 | final List<IEventTaskInstance> newInstances = new ArrayList<>(); |
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150 | |
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151 | try { |
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152 | ITaskInstanceVisitor visitor = new DefaultTaskInstanceTraversingVisitor() { |
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153 | @Override |
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154 | public void visit(IEventTaskInstance eventTaskInstance) { |
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155 | formerInstances.add(eventTaskInstance); |
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156 | } |
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157 | }; |
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158 | |
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159 | PrintStream out = new PrintStream(new FileOutputStream(new File("01.out"))); |
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160 | |
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161 | for (IUserSession session : sessions) { |
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162 | new TaskTreeEncoder().encode(session, out, null); |
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163 | |
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164 | for (ITaskInstance instance : session) { |
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165 | instance.accept(visitor); |
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166 | } |
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167 | } |
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168 | out.close(); |
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169 | } |
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170 | catch (FileNotFoundException e) { |
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171 | e.printStackTrace(); |
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172 | } |
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173 | |
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174 | PrintStream fileout = null; |
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175 | try { |
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176 | fileout = new PrintStream("sysout.txt"); |
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177 | } |
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178 | catch (FileNotFoundException e1) { |
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179 | e1.printStackTrace(); |
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180 | } |
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181 | |
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182 | PrintStream origOut = System.out; |
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183 | if (fileout != null) { |
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184 | System.setOut(fileout); |
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185 | }*/ |
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186 | |
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187 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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188 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< TEST IMPLEMENTATION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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189 | |
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190 | |
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191 | RuleApplicationData appData = new RuleApplicationData(sessions); |
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192 | |
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193 | do { |
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194 | //System.out.println("recreating task model"); |
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195 | appData.setTaskModel(taskFactory.createTaskModel(sessions)); |
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196 | appData.setMostSimilarTasks(null); |
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197 | |
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198 | Console.println("condensing " + appData.getTaskModel().getTasks().size() + " tasks"); |
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199 | |
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200 | getMostSimilarTasks(appData); |
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201 | |
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202 | if (appData.getMostSimilarTasks() != null) { |
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203 | /*System.out.println("*************************************************************"); |
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204 | System.out.println("handling " + appData.getMostSimilarTasks().size() + |
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205 | " most similar tasks"); |
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206 | System.out.println("*************************************************************");*/ |
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207 | for (SimilarTasks mostSimilarTask : appData.getMostSimilarTasks()) { |
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208 | handleSimilarTasks(mostSimilarTask, appData); |
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209 | appData.markAsAlreadyCondensed |
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210 | (mostSimilarTask.getLeftHandSide(), mostSimilarTask.getRightHandSide()); |
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211 | } |
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212 | } |
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213 | |
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214 | harmonizeEqualMarkingTemporalRelationships(appData); |
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215 | } |
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216 | while (appData.getMostSimilarTasks() != null); |
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217 | |
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218 | |
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219 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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220 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> TEST IMPLEMENTATION >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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221 | /*try { |
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222 | ITaskInstanceVisitor visitor = new DefaultTaskInstanceTraversingVisitor() { |
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223 | @Override |
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224 | public void visit(IEventTaskInstance eventTaskInstance) { |
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225 | newInstances.add(eventTaskInstance); |
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226 | } |
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227 | }; |
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228 | |
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229 | PrintStream out = new PrintStream(new FileOutputStream(new File("02.out"))); |
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230 | |
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231 | for (IUserSession session : sessions) { |
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232 | new TaskTreeEncoder().encode(session, out, null); |
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233 | |
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234 | for (ITaskInstance instance : session) { |
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235 | instance.accept(visitor); |
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236 | } |
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237 | } |
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238 | out.close(); |
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239 | } |
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240 | catch (FileNotFoundException e) { |
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241 | e.printStackTrace(); |
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242 | } |
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243 | |
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244 | System.out.println("sizes " + formerInstances.size() + " " + newInstances.size()); |
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245 | for (int i = 0; i < newInstances.size(); i++) { |
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246 | if (formerInstances.get(i) != newInstances.get(i)) { |
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247 | System.out.println(i + " " + formerInstances.get(i) + " " + newInstances.get(i)); |
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248 | } |
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249 | } |
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250 | |
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251 | System.setOut(origOut); |
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252 | fileout.close();*/ |
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253 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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254 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< TEST IMPLEMENTATION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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255 | |
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256 | |
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257 | return appData.finalizeRuleApplicationResult(); |
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258 | } |
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259 | |
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260 | /** |
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261 | * |
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262 | */ |
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263 | private void getMostSimilarTasks(RuleApplicationData appData) { |
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264 | // determine the list of interesting tasks |
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265 | Collection<ITask> allTasks = appData.getTaskModel().getTasks(); |
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266 | Iterator<ITask> taskIterator = allTasks.iterator(); |
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267 | List<ITask> taskList = new ArrayList<ITask>(allTasks.size()); |
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268 | while (taskIterator.hasNext()) { |
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269 | ITask task = taskIterator.next(); |
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270 | |
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271 | if ((task instanceof IStructuringTemporalRelationship)/* && |
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272 | (!appData.isSelfCreatedTask(task))*/) |
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273 | { |
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274 | taskList.add(task); |
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275 | } |
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276 | } |
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277 | |
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278 | if (taskList.size() > 1) { |
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279 | List<SimilarTasks> mostSimilarTasks = |
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280 | appData.getMostSimilarTasksDeterminer().getMostSimilarTasks |
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281 | (taskList, appData.getTaskModel()); |
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282 | |
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283 | if (mostSimilarTasks.size() > 0) { |
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284 | appData.setMostSimilarTasks(mostSimilarTasks); |
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285 | } |
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286 | } |
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287 | } |
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288 | |
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289 | /** |
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290 | * |
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291 | */ |
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292 | private void handleSimilarTasks(SimilarTasks similarTasks, RuleApplicationData appData) { |
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293 | // we need at least one instance per similar task. If not, it will not work and also |
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294 | // does not make sense. No instances anymore can be caused by merging and hence |
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295 | // discarding tasks in preceding merges. |
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296 | |
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297 | //similarTasks.dump(System.out); |
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298 | |
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299 | if ((similarTasks.getLeftHandSide().getInstances().size() <= 0) || |
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300 | (similarTasks.getRightHandSide().getInstances().size() <= 0)) |
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301 | { |
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302 | /*System.out.println("a task exists that has no instances"); |
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303 | System.out.println(similarTasks.getLeftHandSide() + " " + |
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304 | similarTasks.getLeftHandSide().getInstances().size()); |
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305 | System.out.println(similarTasks.getRightHandSide() + " " + |
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306 | similarTasks.getRightHandSide().getInstances().size());*/ |
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307 | |
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308 | throw new RuntimeException |
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309 | ("one and the same task seems to belong to several similar tasks"); |
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310 | } |
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311 | |
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312 | similarTasks = SimilarTasks.getMergableLevelOfSimilarity |
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313 | (similarTasks, identTaskHandlStrat.getTaskComparator()); |
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314 | |
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315 | //similarTasks.dump(System.out); |
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316 | |
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317 | List<FlattenInstruction> flattenInstructions = |
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318 | getFlattenInstructions(similarTasks, appData); |
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319 | |
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320 | for (FlattenInstruction instruction : flattenInstructions) { |
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321 | instruction.dump(System.out); |
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322 | } |
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323 | |
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324 | int noOfFlattenedInstances = similarTasks.getLeftHandSide().getInstances().size() + |
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325 | similarTasks.getRightHandSide().getInstances().size(); |
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326 | |
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327 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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328 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> TEST IMPLEMENTATION >>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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329 | List<TaskPath> excludes = new ArrayList<TaskPath>(); |
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330 | |
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331 | for (FlattenInstruction instruction : flattenInstructions) { |
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332 | System.out.println("exclude " + instruction.path); |
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333 | excludes.add(instruction.path); |
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334 | } |
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335 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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336 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< TEST IMPLEMENTATION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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337 | |
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338 | Map<ITaskInstance, IUserSession> flattenedSessions = |
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339 | new HashMap<ITaskInstance, IUserSession>(noOfFlattenedInstances); |
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340 | flattenInstances |
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341 | (similarTasks.getLeftHandSide(), flattenInstructions, flattenedSessions, excludes); |
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342 | flattenInstances |
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343 | (similarTasks.getRightHandSide(), flattenInstructions, flattenedSessions, excludes); |
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344 | |
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345 | /*for (IUserSession session : flattenedSessions.values()) { |
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346 | new TaskTreeEncoder().encode(session, System.out); |
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347 | }*/ |
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348 | |
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349 | List<IUserSession> flattenedSessionList = |
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350 | new LinkedList<IUserSession>(flattenedSessions.values()); |
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351 | |
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352 | new SequenceForTaskDetectionRule |
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353 | (TaskEquality.IDENTICAL, taskFactory, taskBuilder).apply(flattenedSessionList); |
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354 | |
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355 | Map<ITaskInstance, ITaskInstance> replacements = new HashMap<ITaskInstance, ITaskInstance>(); |
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356 | for (Map.Entry<ITaskInstance, IUserSession> entry : flattenedSessions.entrySet()) { |
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357 | |
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358 | |
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359 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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360 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> TEST IMPLEMENTATION >>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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361 | // the user sessions were sufficiently equal to have now only one common task as child |
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362 | if (entry.getValue().size() != 1) { |
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363 | //new TaskTreeEncoder().encode(entry.getValue(), System.out, excludes); |
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364 | throw new RuntimeException("flattened sessions were not combined as expected"); |
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365 | } |
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366 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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367 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< TEST IMPLEMENTATION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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368 | |
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369 | |
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370 | replacements.put(entry.getKey(), entry.getValue().get(0)); |
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371 | } |
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372 | |
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373 | |
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374 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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375 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> TEST IMPLEMENTATION >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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376 | int allInstances = similarTasks.getLeftHandSide().getInstances().size() + |
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377 | similarTasks.getRightHandSide().getInstances().size(); |
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378 | |
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379 | if (replacements.size() != allInstances) { |
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380 | throw new RuntimeException("number of replacements does not match number of instances"); |
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381 | } |
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382 | |
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383 | /*if (replacements.size() > 0) { |
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384 | System.out.println("replacement task is calculated to be: "); |
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385 | new TaskTreeEncoder().encode(replacements.values().iterator().next().getTask(), |
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386 | System.out); |
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387 | }*/ |
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388 | |
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389 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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390 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< TEST IMPLEMENTATION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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391 | |
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392 | |
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393 | for (IUserSession session : appData.getSessions()) { |
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394 | replaceTaskInstances(session, replacements, similarTasks); |
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395 | } |
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396 | |
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397 | |
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398 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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399 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> TEST IMPLEMENTATION >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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400 | if (replacements.size() != 0) { |
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401 | for (Map.Entry<ITaskInstance, ITaskInstance> entry : replacements.entrySet()) { |
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402 | System.out.println |
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403 | ("did not replace instance " + entry.getKey() + " with " + entry.getValue()); |
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404 | } |
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405 | |
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406 | throw new RuntimeException(); |
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407 | } |
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408 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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409 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< TEST IMPLEMENTATION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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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 | private List<FlattenInstruction> getFlattenInstructions(SimilarTasks similarTasks, |
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416 | RuleApplicationData appData) |
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417 | { |
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418 | TaskTraversal leftHandSideTraversal = similarTasks.getLeftHandSideTraversal(); |
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419 | TaskTraversal rightHandSideTraversal = similarTasks.getRightHandSideTraversal(); |
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420 | |
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421 | List<FlattenInstruction> result = new LinkedList<FlattenInstruction>(); |
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422 | TaskInstanceComparator comp = identTaskHandlStrat.getTaskComparator(); |
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423 | |
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424 | // first create instructions for the deltas |
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425 | for (Delta delta : similarTasks.getPatch().getDeltas()) { |
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426 | if ((delta.getType() == Delta.TYPE.INSERT) || |
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427 | (delta.getType() == Delta.TYPE.DELETE)) |
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428 | { |
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429 | Chunk chunk; |
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430 | TaskPath insertAfterPath = null; |
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431 | TaskPath insertBeforePath; |
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432 | |
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433 | if (delta.getType() == Delta.TYPE.INSERT) { |
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434 | chunk = delta.getRevised(); |
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435 | int pos = delta.getOriginal().getPosition(); |
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436 | if (pos > 0) { |
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437 | insertAfterPath = leftHandSideTraversal.getTraversalPaths()[pos - 1]; |
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438 | } |
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439 | insertBeforePath = leftHandSideTraversal.getTraversalPaths()[pos]; |
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440 | } |
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441 | else { |
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442 | chunk = delta.getOriginal(); |
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443 | int pos = delta.getRevised().getPosition(); |
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444 | if (pos > 0) { |
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445 | insertAfterPath = rightHandSideTraversal.getTraversalPaths()[pos - 1]; |
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446 | } |
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447 | insertBeforePath = rightHandSideTraversal.getTraversalPaths()[pos]; |
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448 | } |
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449 | |
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450 | ITask child = getTaskForChunk(chunk, appData); |
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451 | IOptional optional; |
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452 | |
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453 | if (child instanceof IOptional) { |
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454 | optional = (IOptional) child; |
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455 | } |
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456 | else { |
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457 | optional = taskFactory.createNewOptional(); |
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458 | taskBuilder.setMarkedTask(optional, child); |
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459 | optional = (IOptional) appData.ensureUnique(optional); |
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460 | createReplacementInstructions(chunk, optional, null, result); |
---|
461 | } |
---|
462 | |
---|
463 | // create a flatten instruction for the non-occurrence of the optional |
---|
464 | result.add(new FlattenInstruction(insertAfterPath, insertBeforePath, optional)); |
---|
465 | |
---|
466 | } |
---|
467 | else if (delta.getType() == Delta.TYPE.CHANGE) { |
---|
468 | ITask child1; |
---|
469 | ITask child2; |
---|
470 | |
---|
471 | // check, if the change covers the whole traversal. If so reuse the root task. |
---|
472 | // Otherwise, create intermediate tasks if required representing both sides |
---|
473 | // of changes |
---|
474 | if ((delta.getOriginal().getPosition() == 0) && |
---|
475 | (delta.getOriginal().size() == similarTasks.getLeftHandSideTraversal().size())) |
---|
476 | { |
---|
477 | child1 = similarTasks.getLeftHandSide(); |
---|
478 | } |
---|
479 | else { |
---|
480 | child1 = getTaskForChunk(delta.getOriginal(), appData); |
---|
481 | } |
---|
482 | |
---|
483 | if ((delta.getRevised().getPosition() == 0) && |
---|
484 | (delta.getRevised().size() == similarTasks.getRightHandSideTraversal().size())) |
---|
485 | { |
---|
486 | child2 = similarTasks.getRightHandSide(); |
---|
487 | } |
---|
488 | else { |
---|
489 | child2 = getTaskForChunk(delta.getRevised(), appData); |
---|
490 | } |
---|
491 | |
---|
492 | // check if either of the variants is an iteration or optional of the respective |
---|
493 | // other variant. If so, ensure, that the iteration or optional are preserved |
---|
494 | ITask markedTask1 = (child1 instanceof IMarkingTemporalRelationship) ? |
---|
495 | ((IMarkingTemporalRelationship) child1).getMarkedTask() : null; |
---|
496 | |
---|
497 | ITask markedTask2 = (child2 instanceof IMarkingTemporalRelationship) ? |
---|
498 | ((IMarkingTemporalRelationship) child2).getMarkedTask() : null; |
---|
499 | |
---|
500 | if (comp.equals(markedTask1, child2)) { |
---|
501 | if (child1 instanceof IOptional) { |
---|
502 | createReplacementInstructions |
---|
503 | (delta.getRevised(), (IOptional) child1, null, result); |
---|
504 | } |
---|
505 | else { |
---|
506 | throw new java.lang.UnsupportedOperationException("not implemented yet"); |
---|
507 | } |
---|
508 | } |
---|
509 | else if (comp.equals(markedTask2, child1)) { |
---|
510 | if (child2 instanceof IOptional) { |
---|
511 | createReplacementInstructions |
---|
512 | (delta.getOriginal(), (IOptional) child2, null, result); |
---|
513 | } |
---|
514 | else { |
---|
515 | throw new java.lang.UnsupportedOperationException("not implemented yet"); |
---|
516 | } |
---|
517 | } |
---|
518 | else if ((markedTask1 != null) && (comp.equals(markedTask1, markedTask2))) { |
---|
519 | throw new java.lang.UnsupportedOperationException("not implemented yet"); |
---|
520 | } |
---|
521 | else { |
---|
522 | // its time to create a selection of both variants. If one is already |
---|
523 | // a selection, it is reused and extended, if required |
---|
524 | ITask expectedChild1 = null; |
---|
525 | ITask expectedChild2 = null; |
---|
526 | |
---|
527 | ISelection selection = null; |
---|
528 | if (child1 instanceof ISelection) { |
---|
529 | selection = (ISelection) child1; |
---|
530 | } |
---|
531 | |
---|
532 | if (child2 instanceof ISelection) { |
---|
533 | if (selection == null) { |
---|
534 | // only child 2 is a selection --> extend it with child 1 |
---|
535 | selection = (ISelection) child2; |
---|
536 | addSelectionChildIfRequired(selection, child1); |
---|
537 | expectedChild1 = child1; |
---|
538 | } |
---|
539 | else { |
---|
540 | // both are selections --> extend child 1 with variants of child2 |
---|
541 | for (ITask child : ((ISelection) child2).getChildren()) { |
---|
542 | addSelectionChildIfRequired(selection, child); |
---|
543 | } |
---|
544 | } |
---|
545 | } |
---|
546 | else if (selection != null) { |
---|
547 | // only child 1 is a selection --> extend it with child 2 |
---|
548 | addSelectionChildIfRequired(selection, child2); |
---|
549 | expectedChild2 = child2; |
---|
550 | } |
---|
551 | else if (selection == null) { |
---|
552 | // none of both is already a selection, so create a new one with both |
---|
553 | // of the children as variants |
---|
554 | selection = taskFactory.createNewSelection(); |
---|
555 | taskBuilder.addChild(selection, child1); |
---|
556 | taskBuilder.addChild(selection, child2); |
---|
557 | expectedChild1 = child1; |
---|
558 | expectedChild2 = child2; |
---|
559 | } |
---|
560 | |
---|
561 | selection = (ISelection) appData.ensureUnique(selection); |
---|
562 | |
---|
563 | createReplacementInstructions |
---|
564 | (delta.getOriginal(), selection, expectedChild1, result); |
---|
565 | createReplacementInstructions |
---|
566 | (delta.getRevised(), selection, expectedChild2, result); |
---|
567 | } |
---|
568 | } |
---|
569 | } |
---|
570 | |
---|
571 | // create instructions to harmonize marking temporal relationships for untraversed tasks |
---|
572 | int leftHandSideIndex = 0; |
---|
573 | int rightHandSideIndex = 0; |
---|
574 | |
---|
575 | OUTER: |
---|
576 | while (leftHandSideIndex < leftHandSideTraversal.getTraversalPaths().length) { |
---|
577 | for (Delta delta : similarTasks.getPatch().getDeltas()) { |
---|
578 | if (delta.getOriginal().getPosition() == leftHandSideIndex) { |
---|
579 | if (delta.getType() == Delta.TYPE.INSERT) { |
---|
580 | rightHandSideIndex += delta.getRevised().size(); |
---|
581 | // do not continue OUTER to ensure, that the left hand side and the |
---|
582 | // right hand side coming directly after the insert are handled |
---|
583 | } |
---|
584 | else if (delta.getType() == Delta.TYPE.DELETE) { |
---|
585 | leftHandSideIndex += delta.getOriginal().size(); |
---|
586 | continue OUTER; |
---|
587 | } |
---|
588 | else if (delta.getType() == Delta.TYPE.CHANGE) { |
---|
589 | leftHandSideIndex += delta.getOriginal().size(); |
---|
590 | rightHandSideIndex += delta.getRevised().size(); |
---|
591 | continue OUTER; |
---|
592 | } |
---|
593 | } |
---|
594 | } |
---|
595 | |
---|
596 | TaskPath leftPath = leftHandSideTraversal.getTraversalPaths()[leftHandSideIndex]; |
---|
597 | TaskPath rightPath = rightHandSideTraversal.getTraversalPaths()[rightHandSideIndex]; |
---|
598 | |
---|
599 | if (comp.equals(leftPath.getLast(), rightPath.getLast())) { |
---|
600 | if (leftPath.getTask(leftPath.size() - 2) instanceof IOptional) { |
---|
601 | IOptional optional = (IOptional) leftPath.getTask(leftPath.size() - 2); |
---|
602 | result.add |
---|
603 | (new FlattenInstruction(leftPath.subPath(0, leftPath.size()), optional)); |
---|
604 | |
---|
605 | result.add(new FlattenInstruction(rightPath, optional)); |
---|
606 | } |
---|
607 | else if (rightPath.getTask(rightPath.size() - 2) instanceof IOptional) { |
---|
608 | IOptional optional = (IOptional) rightPath.getTask(rightPath.size() - 2); |
---|
609 | result.add |
---|
610 | (new FlattenInstruction(rightPath.subPath(0, rightPath.size()), optional)); |
---|
611 | |
---|
612 | result.add(new FlattenInstruction(leftPath, optional)); |
---|
613 | } |
---|
614 | } |
---|
615 | |
---|
616 | leftHandSideIndex++; |
---|
617 | rightHandSideIndex++; |
---|
618 | } |
---|
619 | |
---|
620 | |
---|
621 | // then create instructions for what stays the same |
---|
622 | OUTER: |
---|
623 | for (TaskPath path : leftHandSideTraversal.getTraversalPaths()) { |
---|
624 | for (FlattenInstruction instruction : result) { |
---|
625 | if (instruction.matches(path)) { |
---|
626 | continue OUTER; |
---|
627 | } |
---|
628 | } |
---|
629 | |
---|
630 | result.add(new FlattenInstruction(path)); |
---|
631 | } |
---|
632 | |
---|
633 | OUTER: |
---|
634 | for (TaskPath path : rightHandSideTraversal.getTraversalPaths()) { |
---|
635 | for (FlattenInstruction instruction : result) { |
---|
636 | if (instruction.matches(path)) { |
---|
637 | continue OUTER; |
---|
638 | } |
---|
639 | } |
---|
640 | |
---|
641 | result.add(new FlattenInstruction(path)); |
---|
642 | } |
---|
643 | |
---|
644 | return result; |
---|
645 | } |
---|
646 | |
---|
647 | /** |
---|
648 | * |
---|
649 | */ |
---|
650 | private void addSelectionChildIfRequired(ISelection selection, ITask child) { |
---|
651 | for (ITask candidate : selection.getChildren()) { |
---|
652 | if (identTaskHandlStrat.getTaskComparator().equals(candidate, child)) { |
---|
653 | return; |
---|
654 | } |
---|
655 | } |
---|
656 | |
---|
657 | taskBuilder.addChild(selection, child); |
---|
658 | } |
---|
659 | |
---|
660 | /** |
---|
661 | * |
---|
662 | */ |
---|
663 | private ITask getTaskForChunk(Chunk chunk, RuleApplicationData appData) { |
---|
664 | if (chunk.size() == 1) { |
---|
665 | TaskPath path = (TaskPath) chunk.getLines().get(0); |
---|
666 | return path.getTask(path.size() - 1); |
---|
667 | } |
---|
668 | else { |
---|
669 | ISequence task = taskFactory.createNewSequence(); |
---|
670 | |
---|
671 | for (Object pathObj : chunk.getLines()) { |
---|
672 | TaskPath path = (TaskPath) pathObj; |
---|
673 | taskBuilder.addChild(task, path.getLast()); |
---|
674 | } |
---|
675 | |
---|
676 | return appData.ensureUnique(task); |
---|
677 | } |
---|
678 | } |
---|
679 | |
---|
680 | /** |
---|
681 | * |
---|
682 | */ |
---|
683 | private void createReplacementInstructions(Chunk chunk, |
---|
684 | ITask replacement, |
---|
685 | ITask selectedChild, |
---|
686 | List<FlattenInstruction> result) |
---|
687 | { |
---|
688 | // create a flatten instruction for the occurrence of the replacement |
---|
689 | for (Object pathObj : chunk.getLines()) { |
---|
690 | TaskPath path = (TaskPath) pathObj; |
---|
691 | |
---|
692 | if (replacement instanceof IOptional) { |
---|
693 | result.add(new FlattenInstruction(path, (IOptional) replacement)); |
---|
694 | } |
---|
695 | else if (replacement instanceof ISelection) { |
---|
696 | result.add |
---|
697 | (new FlattenInstruction(path, (ISelection) replacement, selectedChild)); |
---|
698 | } |
---|
699 | } |
---|
700 | } |
---|
701 | |
---|
702 | /** |
---|
703 | * |
---|
704 | */ |
---|
705 | private void flattenInstances(ITask task, |
---|
706 | List<FlattenInstruction> flattenInstructions, |
---|
707 | Map<ITaskInstance, IUserSession> flattenedSessions, |
---|
708 | List<TaskPath> excludes) |
---|
709 | { |
---|
710 | //int i = 0; |
---|
711 | for (ITaskInstance instance : task.getInstances()) { |
---|
712 | /*System.out.println("flattening instance " + i++ + " of task " + task); |
---|
713 | new TaskTreeEncoder().encode(instance, System.out, excludes);*/ |
---|
714 | |
---|
715 | TaskPath taskPath = new TaskPath(); |
---|
716 | taskPath.add(instance.getTask(), 0); |
---|
717 | IUserSession session = taskFactory.createUserSession(); |
---|
718 | flattenInstance(instance, taskPath, flattenInstructions, session, |
---|
719 | new LinkedList<TaskPath>()); |
---|
720 | |
---|
721 | //new TaskTreeEncoder().encode(session, System.out, excludes); |
---|
722 | |
---|
723 | flattenedSessions.put(instance, session); |
---|
724 | } |
---|
725 | } |
---|
726 | |
---|
727 | /** |
---|
728 | * |
---|
729 | */ |
---|
730 | private void flattenInstance(ITaskInstance instance, |
---|
731 | TaskPath taskPath, |
---|
732 | List<FlattenInstruction> flattenInstructions, |
---|
733 | IUserSession session, |
---|
734 | List<TaskPath> previousPaths) |
---|
735 | { |
---|
736 | boolean instructionApplied = false; |
---|
737 | |
---|
738 | TaskInstanceComparator comp = identTaskHandlStrat.getTaskComparator(); |
---|
739 | |
---|
740 | //System.out.println("applying instructions on " + taskPath); |
---|
741 | |
---|
742 | for (FlattenInstruction instruction : flattenInstructions) { |
---|
743 | if (instruction.matches(taskPath)) { |
---|
744 | //System.out.print("found instruction "); |
---|
745 | instruction.dump(System.out); |
---|
746 | |
---|
747 | switch (instruction.getInstruction()) { |
---|
748 | case DONT_TRAVERSE: { |
---|
749 | if (instance != null) { |
---|
750 | taskBuilder.addTaskInstance(session, instance); |
---|
751 | } |
---|
752 | instructionApplied = true; |
---|
753 | break; |
---|
754 | } |
---|
755 | case MAKE_OPTIONAL: { |
---|
756 | instructionApplied = true; |
---|
757 | |
---|
758 | if (instance == null) { |
---|
759 | break; |
---|
760 | } |
---|
761 | |
---|
762 | IOptional optional = instruction.getOptional(); |
---|
763 | |
---|
764 | if (comp.equals(optional, instance.getTask())) { |
---|
765 | // the instance is already an instance of the correct optional --> reuse |
---|
766 | taskBuilder.addTaskInstance(session, instance); |
---|
767 | } |
---|
768 | else if (comp.equals(optional.getMarkedTask(), instance.getTask())) { |
---|
769 | IOptionalInstance optionalInstance = |
---|
770 | taskFactory.createNewTaskInstance(optional); |
---|
771 | taskBuilder.setChild(optionalInstance, instance); |
---|
772 | taskBuilder.addTaskInstance(session, optionalInstance); |
---|
773 | } |
---|
774 | else if (optional.getMarkedTask() instanceof ISequence) { |
---|
775 | // first check, if the instance was already created, if not create it |
---|
776 | ISequenceInstance sequenceInstance = ensureSequenceChildInstanceFor |
---|
777 | (optional, (ISequence) optional.getMarkedTask(), session); |
---|
778 | |
---|
779 | taskBuilder.addChild(sequenceInstance, instance); |
---|
780 | } |
---|
781 | break; |
---|
782 | } |
---|
783 | case MAKE_SELECTION: { |
---|
784 | instructionApplied = true; |
---|
785 | |
---|
786 | if (instance == null) { |
---|
787 | break; |
---|
788 | } |
---|
789 | |
---|
790 | ISelection selection = instruction.getSelection(); |
---|
791 | |
---|
792 | if (comp.equals(instruction.getSelectedChild(), instance.getTask())) { |
---|
793 | ISelectionInstance selectionInstance = |
---|
794 | taskFactory.createNewTaskInstance(selection); |
---|
795 | taskBuilder.setChild(selectionInstance, instance); |
---|
796 | taskBuilder.addTaskInstance(session, selectionInstance); |
---|
797 | } |
---|
798 | else if (instruction.getSelectedChild() == null) { |
---|
799 | // both variants were already selections. They will have been merged. |
---|
800 | // Hence we can reuse the child instances of the existing selection |
---|
801 | // instances. |
---|
802 | if (comp.equals(instance.getTask(), selection)) { |
---|
803 | taskBuilder.addTaskInstance(session, instance); |
---|
804 | } |
---|
805 | else { |
---|
806 | ISelectionInstance selectionInstance = |
---|
807 | taskFactory.createNewTaskInstance(selection); |
---|
808 | taskBuilder.setChild(selectionInstance, |
---|
809 | ((ISelectionInstance) instance).getChild()); |
---|
810 | taskBuilder.addTaskInstance(session, selectionInstance); |
---|
811 | |
---|
812 | taskBuilder.discardTaskInstance(instance); |
---|
813 | } |
---|
814 | } |
---|
815 | else if (instruction.getSelectedChild() instanceof ISequence) { |
---|
816 | // first check, if the instance was already created, if not create it |
---|
817 | ISequenceInstance sequenceInstance = ensureSequenceChildInstanceFor |
---|
818 | (selection, (ISequence) instruction.getSelectedChild(), session); |
---|
819 | |
---|
820 | taskBuilder.addChild(sequenceInstance, instance); |
---|
821 | } |
---|
822 | |
---|
823 | break; |
---|
824 | } |
---|
825 | case INTEGRATE_OPTIONAL: { |
---|
826 | TaskPath previousPath = previousPaths.size() > 0 ? |
---|
827 | previousPaths.get(previousPaths.size() - 1) : null; |
---|
828 | |
---|
829 | if (pathsMatch(instruction.getPrecedingPath(), previousPath)) { |
---|
830 | IOptional optional = instruction.getOptional(); |
---|
831 | IOptionalInstance optionalInstance = |
---|
832 | taskFactory.createNewTaskInstance(optional); |
---|
833 | taskBuilder.addTaskInstance(session, optionalInstance); |
---|
834 | } |
---|
835 | |
---|
836 | if (instance != null) { |
---|
837 | taskBuilder.addTaskInstance(session, instance); |
---|
838 | } |
---|
839 | |
---|
840 | instructionApplied = true; |
---|
841 | break; |
---|
842 | } |
---|
843 | default : { |
---|
844 | throw new RuntimeException("unknown instruction type"); |
---|
845 | } |
---|
846 | } |
---|
847 | } |
---|
848 | |
---|
849 | if (instructionApplied) { |
---|
850 | break; |
---|
851 | } |
---|
852 | } |
---|
853 | |
---|
854 | if (!instructionApplied) { |
---|
855 | ITask task = taskPath.getLast(); |
---|
856 | if (task instanceof IIteration) { |
---|
857 | taskPath.add(((IIteration) task).getMarkedTask(), 0); |
---|
858 | |
---|
859 | if (instance != null) { |
---|
860 | for (ITaskInstance child : (IIterationInstance) instance) { |
---|
861 | flattenInstance |
---|
862 | (child, taskPath, flattenInstructions, session, previousPaths); |
---|
863 | } |
---|
864 | } |
---|
865 | else { |
---|
866 | flattenInstance(null, taskPath, flattenInstructions, session, previousPaths); |
---|
867 | } |
---|
868 | |
---|
869 | taskPath.removeLast(); |
---|
870 | } |
---|
871 | else if (task instanceof ISequence) { |
---|
872 | List<ITask> children = ((ISequence) task).getChildren(); |
---|
873 | for (int i = 0; i < children.size(); i++) { |
---|
874 | ITaskInstance child = null; |
---|
875 | if (instance != null) { |
---|
876 | child = ((ISequenceInstance) instance).get(i); |
---|
877 | } |
---|
878 | taskPath.add(children.get(i), i); |
---|
879 | flattenInstance |
---|
880 | (child, taskPath, flattenInstructions, session, previousPaths); |
---|
881 | taskPath.removeLast(); |
---|
882 | } |
---|
883 | } |
---|
884 | else if (task instanceof ISelection) { |
---|
885 | if (instance != null) { |
---|
886 | taskPath.add(((ISelectionInstance) instance).getChild().getTask(), 0); |
---|
887 | flattenInstance(((ISelectionInstance) instance).getChild(), taskPath, |
---|
888 | flattenInstructions, session, previousPaths); |
---|
889 | taskPath.removeLast(); |
---|
890 | } |
---|
891 | else { |
---|
892 | // check if the selection has any child for which a rule must be considered |
---|
893 | List<ITask> children = ((ISelection) task).getChildren(); |
---|
894 | for (int i = 0; i < children.size(); i++) { |
---|
895 | taskPath.add(children.get(i), i); |
---|
896 | flattenInstance |
---|
897 | (null, taskPath, flattenInstructions, session, previousPaths); |
---|
898 | taskPath.removeLast(); |
---|
899 | } |
---|
900 | } |
---|
901 | } |
---|
902 | else if (task instanceof IOptional) { |
---|
903 | taskPath.add(((IOptional) task).getMarkedTask(), 0); |
---|
904 | ITaskInstance child = null; |
---|
905 | if (instance != null) { |
---|
906 | child = ((IOptionalInstance) instance).getChild(); |
---|
907 | } |
---|
908 | flattenInstance(child, taskPath, flattenInstructions, session, previousPaths); |
---|
909 | taskPath.removeLast(); |
---|
910 | |
---|
911 | if ((instance != null) && (child == null)) { |
---|
912 | // add the empty optional instance |
---|
913 | taskBuilder.addTaskInstance(session, instance); |
---|
914 | previousPaths.add(new TaskPath(taskPath)); |
---|
915 | } |
---|
916 | } |
---|
917 | else if (instance != null) { |
---|
918 | taskBuilder.addTaskInstance(session, instance); |
---|
919 | previousPaths.add(new TaskPath(taskPath)); |
---|
920 | } |
---|
921 | } |
---|
922 | else { |
---|
923 | previousPaths.add(new TaskPath(taskPath)); |
---|
924 | } |
---|
925 | } |
---|
926 | |
---|
927 | /** |
---|
928 | * |
---|
929 | */ |
---|
930 | private ISequenceInstance ensureSequenceChildInstanceFor(ITask replacement, |
---|
931 | ISequence expectedChildSequence, |
---|
932 | IUserSession session) |
---|
933 | { |
---|
934 | // first check, if there is already an instance of the expected sequence. If so, check if |
---|
935 | // its child is a sequence instance. If not create a new task instance with an appropriate |
---|
936 | // sequence instance |
---|
937 | ITaskInstance prevInstance = |
---|
938 | session.size() > 0 ? session.get(session.size() - 1) : null; |
---|
939 | |
---|
940 | ISequenceInstance sequenceInstance = null; |
---|
941 | |
---|
942 | if ((prevInstance != null) && |
---|
943 | (identTaskHandlStrat.getTaskComparator().equals(prevInstance.getTask(), replacement))) |
---|
944 | { |
---|
945 | if ((prevInstance instanceof IOptionalInstance) && |
---|
946 | (((IOptionalInstance) prevInstance).getChild() instanceof ISequenceInstance)) |
---|
947 | { |
---|
948 | sequenceInstance = |
---|
949 | (ISequenceInstance) ((IOptionalInstance) prevInstance).getChild(); |
---|
950 | } |
---|
951 | else if ((prevInstance instanceof ISelectionInstance) && |
---|
952 | (((ISelectionInstance) prevInstance).getChild() instanceof ISequenceInstance)) |
---|
953 | { |
---|
954 | sequenceInstance = |
---|
955 | (ISequenceInstance) ((ISelectionInstance) prevInstance).getChild(); |
---|
956 | } |
---|
957 | } |
---|
958 | |
---|
959 | // although we found a sequence instance as expected, this instance might already be fully |
---|
960 | // created and a new (iterated) one must be created. Check for it and handle correctly |
---|
961 | if ((sequenceInstance != null) && |
---|
962 | (sequenceInstance.size() == expectedChildSequence.getChildren().size())) |
---|
963 | { |
---|
964 | sequenceInstance = null; |
---|
965 | } |
---|
966 | |
---|
967 | if (sequenceInstance == null) { |
---|
968 | //System.out.println("creating new sequence instance of selected child"); |
---|
969 | sequenceInstance = taskFactory.createNewTaskInstance(expectedChildSequence); |
---|
970 | |
---|
971 | ITaskInstance replacementInstance = null; |
---|
972 | |
---|
973 | if (replacement instanceof IOptional) { |
---|
974 | replacementInstance = taskFactory.createNewTaskInstance((IOptional) replacement); |
---|
975 | taskBuilder.setChild((IOptionalInstance) replacementInstance, sequenceInstance); |
---|
976 | } |
---|
977 | else if (replacement instanceof ISelection) { |
---|
978 | |
---|
979 | /*System.out.println("replacement: "); |
---|
980 | new TaskTreeEncoder().encode(replacement, System.out); |
---|
981 | |
---|
982 | System.out.println("expectedChild: "); |
---|
983 | new TaskTreeEncoder().encode(expectedChildSequence, System.out);*/ |
---|
984 | |
---|
985 | replacementInstance = taskFactory.createNewTaskInstance((ISelection) replacement); |
---|
986 | taskBuilder.setChild((ISelectionInstance) replacementInstance, sequenceInstance); |
---|
987 | } |
---|
988 | |
---|
989 | taskBuilder.addTaskInstance(session, replacementInstance); |
---|
990 | } |
---|
991 | |
---|
992 | return sequenceInstance; |
---|
993 | } |
---|
994 | |
---|
995 | /** |
---|
996 | * |
---|
997 | */ |
---|
998 | private void replaceTaskInstances(ITaskInstanceList taskInstanceList, |
---|
999 | Map<ITaskInstance, ITaskInstance> replacements, |
---|
1000 | SimilarTasks similarTasks) |
---|
1001 | { |
---|
1002 | for (int i = 0; i < taskInstanceList.size(); i++) { |
---|
1003 | ITaskInstance childInstance = taskInstanceList.get(i); |
---|
1004 | ITaskInstance replacement = replacements.remove(childInstance); |
---|
1005 | |
---|
1006 | if (replacement != null) { |
---|
1007 | |
---|
1008 | // update the model |
---|
1009 | if (taskInstanceList instanceof ISequenceInstance) { |
---|
1010 | ISequence task = ((ISequenceInstance) taskInstanceList).getSequence(); |
---|
1011 | taskBuilder.setChild(task, i, replacement.getTask()); |
---|
1012 | } |
---|
1013 | else if (taskInstanceList instanceof IIterationInstance) { |
---|
1014 | taskBuilder.setMarkedTask |
---|
1015 | (((IIterationInstance) taskInstanceList).getIteration(), |
---|
1016 | replacement.getTask()); |
---|
1017 | } |
---|
1018 | |
---|
1019 | // perform the actual replacement and throw away the instance |
---|
1020 | taskBuilder.setTaskInstance(taskInstanceList, i, replacement); |
---|
1021 | TaskPath path = new TaskPath(); |
---|
1022 | path.add(childInstance.getTask(), 0); |
---|
1023 | discardTaskInstancesNotBelongingToTraversals(childInstance, path, similarTasks); |
---|
1024 | } |
---|
1025 | else if (childInstance instanceof ITaskInstanceList) { |
---|
1026 | replaceTaskInstances((ITaskInstanceList) childInstance, replacements, similarTasks); |
---|
1027 | } |
---|
1028 | else if (childInstance instanceof IOptionalInstance) { |
---|
1029 | replaceTaskInstances((IOptionalInstance) childInstance, replacements, similarTasks); |
---|
1030 | } |
---|
1031 | else if (childInstance instanceof ISelectionInstance) { |
---|
1032 | replaceTaskInstances((ISelectionInstance) childInstance, replacements, similarTasks); |
---|
1033 | } |
---|
1034 | } |
---|
1035 | } |
---|
1036 | |
---|
1037 | /** |
---|
1038 | * |
---|
1039 | */ |
---|
1040 | private void replaceTaskInstances(IOptionalInstance optionalInstance, |
---|
1041 | Map<ITaskInstance, ITaskInstance> replacements, |
---|
1042 | SimilarTasks similarTasks) |
---|
1043 | { |
---|
1044 | ITaskInstance childInstance = optionalInstance.getChild(); |
---|
1045 | |
---|
1046 | if (childInstance != null) { |
---|
1047 | ITaskInstance replacement = replacements.remove(childInstance); |
---|
1048 | |
---|
1049 | if (replacement != null) { |
---|
1050 | |
---|
1051 | // update the model |
---|
1052 | taskBuilder.setMarkedTask(optionalInstance.getOptional(), replacement.getTask()); |
---|
1053 | |
---|
1054 | // perform the actual replacement and throw away the instance |
---|
1055 | taskBuilder.setChild(optionalInstance, replacement); |
---|
1056 | TaskPath path = new TaskPath(); |
---|
1057 | path.add(childInstance.getTask(), 0); |
---|
1058 | discardTaskInstancesNotBelongingToTraversals(childInstance, path, similarTasks); |
---|
1059 | } |
---|
1060 | else if (childInstance instanceof ITaskInstanceList) { |
---|
1061 | replaceTaskInstances((ITaskInstanceList) childInstance, replacements, similarTasks); |
---|
1062 | } |
---|
1063 | else if (childInstance instanceof ISelectionInstance) { |
---|
1064 | replaceTaskInstances((ISelectionInstance) childInstance, replacements, similarTasks); |
---|
1065 | } |
---|
1066 | else if (childInstance instanceof IOptionalInstance) { |
---|
1067 | throw new IllegalArgumentException |
---|
1068 | ("optional must not have an optional as its child"); |
---|
1069 | } |
---|
1070 | } |
---|
1071 | } |
---|
1072 | |
---|
1073 | /** |
---|
1074 | * |
---|
1075 | */ |
---|
1076 | private void replaceTaskInstances(ISelectionInstance selectionInstance, |
---|
1077 | Map<ITaskInstance, ITaskInstance> replacements, |
---|
1078 | SimilarTasks similarTasks) |
---|
1079 | { |
---|
1080 | TaskInstanceComparator comparator = identTaskHandlStrat.getTaskComparator(); |
---|
1081 | |
---|
1082 | ITaskInstance childInstance = selectionInstance.getChild(); |
---|
1083 | |
---|
1084 | if (childInstance != null) { |
---|
1085 | ITaskInstance replacement = replacements.remove(childInstance); |
---|
1086 | |
---|
1087 | if (replacement != null) { |
---|
1088 | |
---|
1089 | if (replacement instanceof ISelectionInstance) { |
---|
1090 | taskBuilder.discardTaskInstance(replacement); |
---|
1091 | replacement = ((ISelectionInstance) replacement).getChild(); |
---|
1092 | } |
---|
1093 | |
---|
1094 | // update the model |
---|
1095 | // we replace all instances of the merged tasks with instances of a new task. |
---|
1096 | // hence, we also have to remove the task of the replaced children from the |
---|
1097 | // available variants of the selection |
---|
1098 | taskBuilder.removeChild(selectionInstance.getSelection(), childInstance.getTask()); |
---|
1099 | |
---|
1100 | boolean found = false; |
---|
1101 | for (ITask child : selectionInstance.getSelection().getChildren()) { |
---|
1102 | if (comparator.equals(child, replacement.getTask())) { |
---|
1103 | found = true; |
---|
1104 | break; |
---|
1105 | } |
---|
1106 | } |
---|
1107 | |
---|
1108 | if (!found) { |
---|
1109 | taskBuilder.addChild(selectionInstance.getSelection(), replacement.getTask()); |
---|
1110 | } |
---|
1111 | |
---|
1112 | // perform the actual replacement and throw away the instance |
---|
1113 | taskBuilder.setChild(selectionInstance, replacement); |
---|
1114 | TaskPath path = new TaskPath(); |
---|
1115 | path.add(childInstance.getTask(), 0); |
---|
1116 | discardTaskInstancesNotBelongingToTraversals(childInstance, path, similarTasks); |
---|
1117 | } |
---|
1118 | else if (childInstance instanceof ITaskInstanceList) { |
---|
1119 | replaceTaskInstances((ITaskInstanceList) childInstance, replacements, similarTasks); |
---|
1120 | } |
---|
1121 | else if (childInstance instanceof IOptionalInstance) { |
---|
1122 | replaceTaskInstances((IOptionalInstance) childInstance, replacements, similarTasks); |
---|
1123 | } |
---|
1124 | else if (childInstance instanceof ISelectionInstance) { |
---|
1125 | throw new IllegalArgumentException |
---|
1126 | ("selection must not have a selection as its child"); |
---|
1127 | } |
---|
1128 | } |
---|
1129 | } |
---|
1130 | |
---|
1131 | /** |
---|
1132 | * |
---|
1133 | */ |
---|
1134 | private void discardTaskInstancesNotBelongingToTraversals(ITaskInstance instance, |
---|
1135 | TaskPath pathToInstance, |
---|
1136 | SimilarTasks similarTasks) |
---|
1137 | { |
---|
1138 | boolean discarded = false; |
---|
1139 | for (TaskPath candidate : similarTasks.getLeftHandSideTraversal().getTraversalPaths()) { |
---|
1140 | if (candidate.size() > pathToInstance.size()) { |
---|
1141 | TaskPath potentialEqualSubPath = candidate.subPath(0, pathToInstance.size()); |
---|
1142 | if (pathsMatch(potentialEqualSubPath, pathToInstance)) { |
---|
1143 | taskBuilder.discardTaskInstance(instance); |
---|
1144 | discarded = true; |
---|
1145 | break; |
---|
1146 | } |
---|
1147 | } |
---|
1148 | } |
---|
1149 | |
---|
1150 | if (!discarded) { |
---|
1151 | for (TaskPath candidate : similarTasks.getRightHandSideTraversal().getTraversalPaths()) { |
---|
1152 | if (candidate.size() > pathToInstance.size()) { |
---|
1153 | TaskPath potentialEqualSubPath = candidate.subPath(0, pathToInstance.size()); |
---|
1154 | if (pathsMatch(potentialEqualSubPath, pathToInstance)) { |
---|
1155 | taskBuilder.discardTaskInstance(instance); |
---|
1156 | discarded = true; |
---|
1157 | break; |
---|
1158 | } |
---|
1159 | } |
---|
1160 | } |
---|
1161 | } |
---|
1162 | |
---|
1163 | if (discarded) { |
---|
1164 | // now also discard the children |
---|
1165 | if (instance instanceof ISequenceInstance) { |
---|
1166 | int index = 0; |
---|
1167 | for (ITaskInstance childInstance : (ITaskInstanceList) instance) { |
---|
1168 | pathToInstance.add(childInstance.getTask(), index++); |
---|
1169 | discardTaskInstancesNotBelongingToTraversals |
---|
1170 | (childInstance, pathToInstance, similarTasks); |
---|
1171 | pathToInstance.removeLast(); |
---|
1172 | } |
---|
1173 | } |
---|
1174 | else if (instance instanceof IIterationInstance) { |
---|
1175 | for (ITaskInstance childInstance : (ITaskInstanceList) instance) { |
---|
1176 | pathToInstance.add(childInstance.getTask(), 0); |
---|
1177 | discardTaskInstancesNotBelongingToTraversals |
---|
1178 | (childInstance, pathToInstance, similarTasks); |
---|
1179 | pathToInstance.removeLast(); |
---|
1180 | } |
---|
1181 | } |
---|
1182 | else if (instance instanceof IOptionalInstance) { |
---|
1183 | ITaskInstance childInstance = ((IOptionalInstance) instance).getChild(); |
---|
1184 | if (childInstance != null) { |
---|
1185 | pathToInstance.add(childInstance.getTask(), 0); |
---|
1186 | discardTaskInstancesNotBelongingToTraversals |
---|
1187 | (childInstance, pathToInstance, similarTasks); |
---|
1188 | pathToInstance.removeLast(); |
---|
1189 | } |
---|
1190 | } |
---|
1191 | else if (instance instanceof ISelectionInstance) { |
---|
1192 | ITaskInstance childInstance = ((ISelectionInstance) instance).getChild(); |
---|
1193 | pathToInstance.add(childInstance.getTask(), 0); |
---|
1194 | discardTaskInstancesNotBelongingToTraversals |
---|
1195 | (childInstance, pathToInstance, similarTasks); |
---|
1196 | pathToInstance.removeLast(); |
---|
1197 | } |
---|
1198 | } |
---|
1199 | } |
---|
1200 | |
---|
1201 | /** |
---|
1202 | * |
---|
1203 | */ |
---|
1204 | private void harmonizeEqualMarkingTemporalRelationships(RuleApplicationData appData) { |
---|
1205 | Console.println("harmonizing marking temporal relationships"); |
---|
1206 | |
---|
1207 | TaskInstanceComparator comparator = identTaskHandlStrat.getTaskComparator(); |
---|
1208 | ITaskModel model = taskFactory.createTaskModel(appData.getSessions()); |
---|
1209 | |
---|
1210 | // determine a list of equal marking temporal relationship lists |
---|
1211 | List<List<IMarkingTemporalRelationship>> equalTasks = |
---|
1212 | new LinkedList<List<IMarkingTemporalRelationship>>(); |
---|
1213 | |
---|
1214 | for (ITask task1 : model.getTasks()) { |
---|
1215 | if (task1 instanceof IMarkingTemporalRelationship) { |
---|
1216 | IMarkingTemporalRelationship parent1 = (IMarkingTemporalRelationship) task1; |
---|
1217 | for (ITask task2 : model.getTasks()) { |
---|
1218 | if (task2 instanceof IMarkingTemporalRelationship) { |
---|
1219 | IMarkingTemporalRelationship parent2 = (IMarkingTemporalRelationship) task2; |
---|
1220 | |
---|
1221 | // check if the parents are of the same type, but distinct and if the |
---|
1222 | // children are identical |
---|
1223 | if (!comparator.equals(parent1, parent2) && |
---|
1224 | (parent1.getClass().isAssignableFrom(parent2.getClass()) || |
---|
1225 | parent2.getClass().isAssignableFrom(parent1.getClass())) && |
---|
1226 | comparator.equals(parent1.getMarkedTask(), parent2.getMarkedTask())) |
---|
1227 | { |
---|
1228 | List<IMarkingTemporalRelationship> equalTaskList = null; |
---|
1229 | |
---|
1230 | GET_EQUAL_TASK_LIST: |
---|
1231 | for (List<IMarkingTemporalRelationship> candidate : equalTasks) { |
---|
1232 | for (IMarkingTemporalRelationship task : candidate) { |
---|
1233 | if (comparator.equals(task, parent1) || |
---|
1234 | comparator.equals(task, parent2)) |
---|
1235 | { |
---|
1236 | equalTaskList = candidate; |
---|
1237 | break GET_EQUAL_TASK_LIST; |
---|
1238 | } |
---|
1239 | } |
---|
1240 | } |
---|
1241 | |
---|
1242 | if (equalTaskList == null) { |
---|
1243 | equalTaskList = new LinkedList<IMarkingTemporalRelationship>(); |
---|
1244 | equalTasks.add(equalTaskList); |
---|
1245 | } |
---|
1246 | |
---|
1247 | boolean found1 = false; |
---|
1248 | boolean found2 = false; |
---|
1249 | |
---|
1250 | for (IMarkingTemporalRelationship task : equalTaskList) { |
---|
1251 | if (comparator.equals(task, parent1)) { |
---|
1252 | found1 = true; |
---|
1253 | } |
---|
1254 | else if (comparator.equals(task, parent2)) { |
---|
1255 | found2 = true; |
---|
1256 | } |
---|
1257 | } |
---|
1258 | |
---|
1259 | if (!found1) { |
---|
1260 | equalTaskList.add(parent1); |
---|
1261 | } |
---|
1262 | |
---|
1263 | if (!found2) { |
---|
1264 | equalTaskList.add(parent2); |
---|
1265 | } |
---|
1266 | } |
---|
1267 | } |
---|
1268 | } |
---|
1269 | } |
---|
1270 | } |
---|
1271 | |
---|
1272 | Console.traceln(Level.FINER, "found " + equalTasks.size() + |
---|
1273 | " groups of equal marking temporal relationships"); |
---|
1274 | |
---|
1275 | // set the same task for all instances |
---|
1276 | List<ITaskInstance> instanceBuffer = new ArrayList<ITaskInstance>(); |
---|
1277 | for (List<IMarkingTemporalRelationship> equalTaskList : equalTasks) { |
---|
1278 | for (int i = 1; i < equalTaskList.size(); i++) { |
---|
1279 | // to prevent a concurrent modification, first copy the list of instances |
---|
1280 | instanceBuffer.clear(); |
---|
1281 | instanceBuffer.addAll(equalTaskList.get(i).getInstances()); |
---|
1282 | for (ITaskInstance instance : instanceBuffer) { |
---|
1283 | taskBuilder.setTask(instance, equalTaskList.get(0)); |
---|
1284 | } |
---|
1285 | } |
---|
1286 | } |
---|
1287 | |
---|
1288 | // several subsequent instances, which had formerly different tasks, may now have the same. |
---|
1289 | // Hence, they need to be merged. But as everything else would be way too complex, we only |
---|
1290 | // perform the merge, if they occur next to each other on the same level |
---|
1291 | for (IUserSession session : appData.getSessions()) { |
---|
1292 | mergeSubsequentIdenticalMarkingTemporalRelationships(session); |
---|
1293 | } |
---|
1294 | |
---|
1295 | } |
---|
1296 | |
---|
1297 | /** |
---|
1298 | * |
---|
1299 | */ |
---|
1300 | private void mergeSubsequentIdenticalMarkingTemporalRelationships(ITaskInstanceList list) { |
---|
1301 | int index = 0; |
---|
1302 | TaskInstanceComparator comparator = identTaskHandlStrat.getTaskComparator(); |
---|
1303 | |
---|
1304 | while (index < (list.size() - 1)) { |
---|
1305 | ITaskInstance instance1 = list.get(index); |
---|
1306 | ITaskInstance instance2 = list.get(index + 1); |
---|
1307 | |
---|
1308 | if (comparator.equals(instance1.getTask(), instance2.getTask())) { |
---|
1309 | if (instance1 instanceof IIterationInstance) { |
---|
1310 | // add the children of the second to the first iteration instance and discard |
---|
1311 | // the second |
---|
1312 | for (ITaskInstance child : (IIterationInstance) instance2) { |
---|
1313 | taskBuilder.addChild((IIterationInstance) instance1, child); |
---|
1314 | } |
---|
1315 | |
---|
1316 | taskBuilder.removeTaskInstance(list, index + 1); |
---|
1317 | taskBuilder.discardTaskInstance(instance2); |
---|
1318 | } |
---|
1319 | else if (instance1 instanceof IOptionalInstance) { |
---|
1320 | ITaskInstance optionalChildInstance1 = |
---|
1321 | ((IOptionalInstance) instance1).getChild(); |
---|
1322 | ITaskInstance optionalChildInstance2 = |
---|
1323 | ((IOptionalInstance) instance2).getChild(); |
---|
1324 | |
---|
1325 | if (optionalChildInstance1 == null) { |
---|
1326 | // independent of the second, just remove the first. The second will be the |
---|
1327 | // unique representation |
---|
1328 | taskBuilder.removeTaskInstance(list, index); |
---|
1329 | } |
---|
1330 | else if (optionalChildInstance2 == null) { |
---|
1331 | // remove the second. The first will be the unique representation |
---|
1332 | taskBuilder.removeTaskInstance(list, index + 1); |
---|
1333 | } |
---|
1334 | else if (optionalChildInstance1 instanceof IIterationInstance) { |
---|
1335 | // add all children of the second optional iteration instance to the |
---|
1336 | // first and discard the second |
---|
1337 | for (ITaskInstance child : (IIterationInstance) optionalChildInstance2) { |
---|
1338 | taskBuilder.addChild |
---|
1339 | ((IIterationInstance) optionalChildInstance1, child); |
---|
1340 | } |
---|
1341 | |
---|
1342 | taskBuilder.removeTaskInstance(list, index + 1); |
---|
1343 | taskBuilder.discardTaskInstance(instance2); |
---|
1344 | } |
---|
1345 | else { |
---|
1346 | // both optional children are no iterations --> create an iteration |
---|
1347 | // for them and add them both as children. |
---|
1348 | throw new java.lang.UnsupportedOperationException("not implemented yet"); |
---|
1349 | } |
---|
1350 | } |
---|
1351 | else { |
---|
1352 | index++; |
---|
1353 | } |
---|
1354 | } |
---|
1355 | else { |
---|
1356 | index++; |
---|
1357 | } |
---|
1358 | } |
---|
1359 | |
---|
1360 | for (ITaskInstance child : list) { |
---|
1361 | if (child instanceof ITaskInstanceList) { |
---|
1362 | mergeSubsequentIdenticalMarkingTemporalRelationships((ITaskInstanceList) child); |
---|
1363 | } |
---|
1364 | } |
---|
1365 | } |
---|
1366 | |
---|
1367 | /** |
---|
1368 | * |
---|
1369 | */ |
---|
1370 | private static boolean pathsMatch(TaskPath path1, TaskPath path2) { |
---|
1371 | if (path1 == null) { |
---|
1372 | return path2 == null; |
---|
1373 | } |
---|
1374 | else if ((path2 != null) && (path1.size() == path2.size())) { |
---|
1375 | for (int i = 0; i < path1.size(); i++) { |
---|
1376 | if (!path1.get(i).equals(path2.get(i))) { |
---|
1377 | return false; |
---|
1378 | } |
---|
1379 | } |
---|
1380 | return true; |
---|
1381 | } |
---|
1382 | else { |
---|
1383 | return false; |
---|
1384 | } |
---|
1385 | } |
---|
1386 | |
---|
1387 | /** |
---|
1388 | * |
---|
1389 | */ |
---|
1390 | /*private boolean containsNewTask(ITask task, RuleApplicationData appData) { |
---|
1391 | if (appData.isSelfCreatedTask(task)) { |
---|
1392 | return true; |
---|
1393 | } |
---|
1394 | else if (task instanceof IStructuringTemporalRelationship) { |
---|
1395 | for (ITask child : ((IStructuringTemporalRelationship) task).getChildren()) { |
---|
1396 | if (containsNewTask(child, appData)) { |
---|
1397 | return true; |
---|
1398 | } |
---|
1399 | } |
---|
1400 | } |
---|
1401 | else if (task instanceof IMarkingTemporalRelationship) { |
---|
1402 | return containsNewTask(((IMarkingTemporalRelationship) task).getMarkedTask(), appData); |
---|
1403 | } |
---|
1404 | |
---|
1405 | return false; |
---|
1406 | }*/ |
---|
1407 | |
---|
1408 | /** |
---|
1409 | * |
---|
1410 | */ |
---|
1411 | private class RuleApplicationData { |
---|
1412 | |
---|
1413 | /** |
---|
1414 | * |
---|
1415 | */ |
---|
1416 | private List<IUserSession> sessions; |
---|
1417 | |
---|
1418 | /** |
---|
1419 | * |
---|
1420 | */ |
---|
1421 | private ITaskModel taskModel; |
---|
1422 | |
---|
1423 | /** |
---|
1424 | * |
---|
1425 | */ |
---|
1426 | private MostSimilarTaskDeterminer mostSimilarTasksDeterminer = |
---|
1427 | new MostSimilarTaskDeterminer(identTaskHandlStrat.getTaskComparator()); |
---|
1428 | |
---|
1429 | /** |
---|
1430 | * |
---|
1431 | */ |
---|
1432 | private List<SimilarTasks> mostSimilarTasks; |
---|
1433 | |
---|
1434 | /** |
---|
1435 | * |
---|
1436 | */ |
---|
1437 | private List<ITask> newTasks = new LinkedList<ITask>(); |
---|
1438 | |
---|
1439 | /** |
---|
1440 | * |
---|
1441 | */ |
---|
1442 | private RuleApplicationResult ruleApplicationResult = new RuleApplicationResult(); |
---|
1443 | |
---|
1444 | /** |
---|
1445 | * |
---|
1446 | */ |
---|
1447 | RuleApplicationData(List<IUserSession> sessions) { |
---|
1448 | this.sessions = sessions; |
---|
1449 | } |
---|
1450 | |
---|
1451 | /** |
---|
1452 | * |
---|
1453 | */ |
---|
1454 | boolean isSelfCreatedTask(ITask task) { |
---|
1455 | for (ITask candidate : newTasks) { |
---|
1456 | if (candidate == task) { |
---|
1457 | return true; |
---|
1458 | } |
---|
1459 | } |
---|
1460 | |
---|
1461 | return false; |
---|
1462 | } |
---|
1463 | |
---|
1464 | /** |
---|
1465 | * @return the mostSimilarTasksDeterminer |
---|
1466 | */ |
---|
1467 | MostSimilarTaskDeterminer getMostSimilarTasksDeterminer() { |
---|
1468 | return mostSimilarTasksDeterminer; |
---|
1469 | } |
---|
1470 | |
---|
1471 | /** |
---|
1472 | * |
---|
1473 | */ |
---|
1474 | void markAsAlreadyCondensed(ITask task1, ITask task2) { |
---|
1475 | mostSimilarTasksDeterminer.addComparisonToSkip(task1, task2); |
---|
1476 | } |
---|
1477 | |
---|
1478 | /** |
---|
1479 | * |
---|
1480 | */ |
---|
1481 | private RuleApplicationResult finalizeRuleApplicationResult() { |
---|
1482 | for (ITask newTask : newTasks) { |
---|
1483 | ruleApplicationResult.addNewlyCreatedTask(newTask); |
---|
1484 | |
---|
1485 | if (newTask instanceof IOptional) { |
---|
1486 | if (isSelfCreatedTask(((IOptional) newTask).getMarkedTask()) && |
---|
1487 | (((IOptional) newTask).getMarkedTask() instanceof ISequence)) |
---|
1488 | { |
---|
1489 | ruleApplicationResult.addNewlyCreatedTask |
---|
1490 | (((IOptional) newTask).getMarkedTask()); |
---|
1491 | } |
---|
1492 | } |
---|
1493 | else if (newTask instanceof ISelection) { |
---|
1494 | for (ITask child : ((ISelection) newTask).getChildren()) { |
---|
1495 | if (isSelfCreatedTask(child) && (child instanceof ISequence)) { |
---|
1496 | ruleApplicationResult.addNewlyCreatedTask(child); |
---|
1497 | } |
---|
1498 | } |
---|
1499 | } |
---|
1500 | } |
---|
1501 | |
---|
1502 | |
---|
1503 | return ruleApplicationResult; |
---|
1504 | } |
---|
1505 | |
---|
1506 | /** |
---|
1507 | * @return the tree |
---|
1508 | */ |
---|
1509 | private List<IUserSession> getSessions() { |
---|
1510 | return sessions; |
---|
1511 | } |
---|
1512 | |
---|
1513 | /** |
---|
1514 | * @return the taskModel |
---|
1515 | */ |
---|
1516 | private ITaskModel getTaskModel() { |
---|
1517 | return taskModel; |
---|
1518 | } |
---|
1519 | |
---|
1520 | /** |
---|
1521 | * @param taskModel the taskModel to set |
---|
1522 | */ |
---|
1523 | private void setTaskModel(ITaskModel taskModel) { |
---|
1524 | this.taskModel = taskModel; |
---|
1525 | } |
---|
1526 | |
---|
1527 | /** |
---|
1528 | * @return the orderedDiffLevels |
---|
1529 | */ |
---|
1530 | private List<SimilarTasks> getMostSimilarTasks() { |
---|
1531 | return mostSimilarTasks; |
---|
1532 | } |
---|
1533 | |
---|
1534 | /** |
---|
1535 | * @param orderedDiffLevels the orderedDiffLevels to set |
---|
1536 | */ |
---|
1537 | private void setMostSimilarTasks(List<SimilarTasks> mostSimilarTasks) { |
---|
1538 | this.mostSimilarTasks = mostSimilarTasks; |
---|
1539 | } |
---|
1540 | |
---|
1541 | /** |
---|
1542 | * |
---|
1543 | */ |
---|
1544 | private ITask ensureUnique(ITask task) { |
---|
1545 | // replacements done in this rule are either optionals or selections. So focus on them |
---|
1546 | if (task instanceof IOptional) { |
---|
1547 | for (ITask newTask : newTasks) { |
---|
1548 | if (newTask instanceof IOptional) { |
---|
1549 | ITask child1 = ((IOptional) task).getMarkedTask(); |
---|
1550 | ITask child2 = ((IOptional) newTask).getMarkedTask(); |
---|
1551 | if (createdChildEquals(child1, child2)) { |
---|
1552 | System.out.println("reusing optional " + newTask + " for " + task); |
---|
1553 | return newTask; |
---|
1554 | } |
---|
1555 | } |
---|
1556 | } |
---|
1557 | } |
---|
1558 | else if (task instanceof ISelection) { |
---|
1559 | for (ITask newTask : newTasks) { |
---|
1560 | if (newTask instanceof ISelection) { |
---|
1561 | List<ITask> children1 = ((ISelection) task).getChildren(); |
---|
1562 | List<ITask> children2 = ((ISelection) newTask).getChildren(); |
---|
1563 | if (createdSelectionChildrenEqual(children1, children2)) { |
---|
1564 | System.out.println("reusing selection " + newTask + " for " + task); |
---|
1565 | |
---|
1566 | /*System.out.println("---------------------------- existing task"); |
---|
1567 | new TaskTreeEncoder().encode(newTask, System.out); |
---|
1568 | |
---|
1569 | System.out.println("---------------------------- completely new task"); |
---|
1570 | new TaskTreeEncoder().encode(task, System.out);*/ |
---|
1571 | |
---|
1572 | return newTask; |
---|
1573 | } |
---|
1574 | } |
---|
1575 | } |
---|
1576 | } |
---|
1577 | else if (task instanceof ISequence) { |
---|
1578 | List<ISequence> allRelevant = new ArrayList<>(); |
---|
1579 | |
---|
1580 | for (ITask candidate : newTasks) { |
---|
1581 | if (candidate instanceof ISequence) { |
---|
1582 | allRelevant.add((ISequence) candidate); |
---|
1583 | } |
---|
1584 | } |
---|
1585 | |
---|
1586 | for (ITask candidate : taskModel.getTasks()) { |
---|
1587 | if (candidate instanceof ISequence) { |
---|
1588 | allRelevant.add((ISequence) candidate); |
---|
1589 | } |
---|
1590 | } |
---|
1591 | |
---|
1592 | for (ISequence candidate : allRelevant) { |
---|
1593 | List<ITask> children1 = ((ISequence) task).getChildren(); |
---|
1594 | List<ITask> children2 = ((ISequence) candidate).getChildren(); |
---|
1595 | |
---|
1596 | boolean equal = false; |
---|
1597 | if (children1.size() == children2.size()) { |
---|
1598 | equal = true; |
---|
1599 | for (int i = 0; i < children1.size(); i++) { |
---|
1600 | if (children1.get(i) != children2.get(i)) { |
---|
1601 | equal = false; |
---|
1602 | break; |
---|
1603 | } |
---|
1604 | } |
---|
1605 | } |
---|
1606 | |
---|
1607 | if (equal) { |
---|
1608 | System.out.println("reusing sequence " + candidate + " for " + task); |
---|
1609 | return candidate; |
---|
1610 | } |
---|
1611 | } |
---|
1612 | } |
---|
1613 | |
---|
1614 | newTasks.add(task); |
---|
1615 | |
---|
1616 | return task; |
---|
1617 | } |
---|
1618 | |
---|
1619 | /** |
---|
1620 | * |
---|
1621 | */ |
---|
1622 | private boolean createdSelectionChildrenEqual(List<ITask> children1, List<ITask> children2) { |
---|
1623 | if (children1.size() != children2.size()) { |
---|
1624 | return false; |
---|
1625 | } |
---|
1626 | |
---|
1627 | for (ITask child1 : children1) { |
---|
1628 | boolean found = false; |
---|
1629 | |
---|
1630 | for (ITask child2 : children2) { |
---|
1631 | if (createdChildEquals(child1, child2)) { |
---|
1632 | found = true; |
---|
1633 | break; |
---|
1634 | } |
---|
1635 | } |
---|
1636 | |
---|
1637 | if (!found) { |
---|
1638 | return false; |
---|
1639 | } |
---|
1640 | } |
---|
1641 | |
---|
1642 | return true; |
---|
1643 | } |
---|
1644 | |
---|
1645 | /** |
---|
1646 | * |
---|
1647 | */ |
---|
1648 | private boolean createdChildEquals(ITask child1, ITask child2) { |
---|
1649 | if (child1 == child2) { |
---|
1650 | return true; |
---|
1651 | } |
---|
1652 | else if (!isSelfCreatedTask(child1) && !isSelfCreatedTask(child2)) { |
---|
1653 | // the simple comparison can not work if the tasks are not self created |
---|
1654 | return false; |
---|
1655 | } |
---|
1656 | else if ((child1 instanceof ISequence) && (child2 instanceof ISequence)) { |
---|
1657 | ISequence sequence1 = (ISequence) child1; |
---|
1658 | ISequence sequence2 = (ISequence) child2; |
---|
1659 | |
---|
1660 | if (sequence1.getChildren().size() != sequence2.getChildren().size()) { |
---|
1661 | return false; |
---|
1662 | } |
---|
1663 | |
---|
1664 | for (int i = 0; i < sequence1.getChildren().size(); i++) { |
---|
1665 | if (sequence1.getChildren().get(i) != sequence2.getChildren().get(i)) { |
---|
1666 | return false; |
---|
1667 | } |
---|
1668 | } |
---|
1669 | |
---|
1670 | return true; |
---|
1671 | } |
---|
1672 | else { |
---|
1673 | return false; |
---|
1674 | } |
---|
1675 | } |
---|
1676 | } |
---|
1677 | |
---|
1678 | /** |
---|
1679 | * |
---|
1680 | */ |
---|
1681 | private static class FlattenInstruction { |
---|
1682 | |
---|
1683 | /** |
---|
1684 | * |
---|
1685 | */ |
---|
1686 | private enum Instruction { DONT_TRAVERSE, MAKE_OPTIONAL, MAKE_SELECTION, INTEGRATE_OPTIONAL }; |
---|
1687 | |
---|
1688 | /** */ |
---|
1689 | private TaskPath path; |
---|
1690 | |
---|
1691 | /** */ |
---|
1692 | private TaskPath precedingPath; |
---|
1693 | |
---|
1694 | /** */ |
---|
1695 | private Instruction instruction; |
---|
1696 | |
---|
1697 | /** */ |
---|
1698 | private IOptional optional = null; |
---|
1699 | |
---|
1700 | /** */ |
---|
1701 | private ISelection selection = null; |
---|
1702 | |
---|
1703 | /** */ |
---|
1704 | private ITask selectedChild = null; |
---|
1705 | |
---|
1706 | /** |
---|
1707 | * |
---|
1708 | */ |
---|
1709 | private FlattenInstruction(TaskPath path) { |
---|
1710 | this.path = path; |
---|
1711 | this.instruction = Instruction.DONT_TRAVERSE; |
---|
1712 | } |
---|
1713 | |
---|
1714 | /** |
---|
1715 | * |
---|
1716 | */ |
---|
1717 | private FlattenInstruction(TaskPath path, IOptional optional) { |
---|
1718 | this.path = path; |
---|
1719 | this.instruction = Instruction.MAKE_OPTIONAL; |
---|
1720 | this.optional = optional; |
---|
1721 | } |
---|
1722 | |
---|
1723 | /** |
---|
1724 | * |
---|
1725 | */ |
---|
1726 | private FlattenInstruction(TaskPath path, ISelection selection, ITask selectedChild) { |
---|
1727 | this.path = path; |
---|
1728 | this.instruction = Instruction.MAKE_SELECTION; |
---|
1729 | this.selection = selection; |
---|
1730 | this.selectedChild = selectedChild; |
---|
1731 | } |
---|
1732 | |
---|
1733 | /** |
---|
1734 | * |
---|
1735 | */ |
---|
1736 | private FlattenInstruction(TaskPath precedingPath, |
---|
1737 | TaskPath path, |
---|
1738 | IOptional optional) |
---|
1739 | { |
---|
1740 | this.path = path; |
---|
1741 | this.precedingPath = precedingPath; |
---|
1742 | this.instruction = Instruction.INTEGRATE_OPTIONAL; |
---|
1743 | this.optional = optional; |
---|
1744 | } |
---|
1745 | |
---|
1746 | /** |
---|
1747 | * |
---|
1748 | */ |
---|
1749 | IOptional getOptional() { |
---|
1750 | return optional; |
---|
1751 | } |
---|
1752 | |
---|
1753 | |
---|
1754 | /** |
---|
1755 | * @return the selection |
---|
1756 | */ |
---|
1757 | ISelection getSelection() { |
---|
1758 | return selection; |
---|
1759 | } |
---|
1760 | |
---|
1761 | /** |
---|
1762 | * @return the selectedChild |
---|
1763 | */ |
---|
1764 | ITask getSelectedChild() { |
---|
1765 | return selectedChild; |
---|
1766 | } |
---|
1767 | |
---|
1768 | /** |
---|
1769 | * @return the instruction |
---|
1770 | */ |
---|
1771 | Instruction getInstruction() { |
---|
1772 | return instruction; |
---|
1773 | } |
---|
1774 | |
---|
1775 | /** |
---|
1776 | * @return the precedingPath |
---|
1777 | */ |
---|
1778 | TaskPath getPrecedingPath() { |
---|
1779 | return precedingPath; |
---|
1780 | } |
---|
1781 | |
---|
1782 | /** |
---|
1783 | * |
---|
1784 | */ |
---|
1785 | boolean matches(TaskPath path) { |
---|
1786 | return pathsMatch(this.path, path); |
---|
1787 | } |
---|
1788 | |
---|
1789 | |
---|
1790 | /** |
---|
1791 | * |
---|
1792 | */ |
---|
1793 | void dump(PrintStream out) { |
---|
1794 | for (int i = 0; i < path.size(); i++) { |
---|
1795 | out.print("-->"); |
---|
1796 | out.print(path.getTask(i).getId()); |
---|
1797 | out.print('('); |
---|
1798 | out.print(path.get(i).getIndex()); |
---|
1799 | out.print(')'); |
---|
1800 | } |
---|
1801 | |
---|
1802 | out.print(" "); |
---|
1803 | out.print(instruction); |
---|
1804 | |
---|
1805 | out.println(); |
---|
1806 | } |
---|
1807 | |
---|
1808 | } |
---|
1809 | |
---|
1810 | } |
---|