[1767] | 1 | // Copyright 2012 Georg-August-Universität Göttingen, Germany |
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| 2 | // |
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| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
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| 4 | // you may not use this file except in compliance with the License. |
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| 5 | // You may obtain a copy of the License at |
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| 6 | // |
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| 7 | // http://www.apache.org/licenses/LICENSE-2.0 |
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| 8 | // |
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| 9 | // Unless required by applicable law or agreed to in writing, software |
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| 10 | // distributed under the License is distributed on an "AS IS" BASIS, |
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| 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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| 12 | // See the License for the specific language governing permissions and |
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| 13 | // limitations under the License. |
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| 14 | |
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| 15 | package de.ugoe.cs.autoquest.tasktrees.temporalrelation; |
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| 16 | |
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| 17 | import java.util.ArrayList; |
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| 18 | import java.util.Collection; |
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| 19 | import java.util.HashMap; |
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| 20 | import java.util.Iterator; |
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| 21 | import java.util.LinkedList; |
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| 22 | import java.util.List; |
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| 23 | import java.util.Map; |
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| 24 | |
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| 25 | import de.ugoe.cs.autoquest.tasktrees.taskequality.TaskEquality; |
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| 26 | import de.ugoe.cs.autoquest.tasktrees.temporalrelation.utils.MostSimilarTaskDeterminer; |
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| 27 | import de.ugoe.cs.autoquest.tasktrees.temporalrelation.utils.SimilarTasks; |
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| 28 | import de.ugoe.cs.autoquest.tasktrees.temporalrelation.utils.TaskTraversal; |
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| 29 | import de.ugoe.cs.autoquest.tasktrees.treeifc.IIteration; |
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| 30 | import de.ugoe.cs.autoquest.tasktrees.treeifc.IIterationInstance; |
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| 31 | import de.ugoe.cs.autoquest.tasktrees.treeifc.IMarkingTemporalRelationship; |
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| 32 | import de.ugoe.cs.autoquest.tasktrees.treeifc.IOptional; |
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| 33 | import de.ugoe.cs.autoquest.tasktrees.treeifc.IOptionalInstance; |
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| 34 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ISelection; |
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| 35 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ISelectionInstance; |
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| 36 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ISequence; |
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| 37 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ISequenceInstance; |
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| 38 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITask; |
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| 39 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskBuilder; |
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| 40 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskFactory; |
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| 41 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskInstance; |
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| 42 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskInstanceList; |
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| 43 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskModel; |
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| 44 | import de.ugoe.cs.autoquest.tasktrees.treeifc.IUserSession; |
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| 45 | import de.ugoe.cs.autoquest.tasktrees.treeifc.TaskPath; |
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| 46 | import de.ugoe.cs.util.console.Console; |
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| 47 | import difflib.Chunk; |
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| 48 | import difflib.Delta; |
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| 49 | |
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| 50 | /** |
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| 51 | * <p> |
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| 52 | * This rule performs a condensing of a task tree. It searches for similar tasks and merges them |
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| 53 | * if possible in to one task with different execution variants. Hence, this rule detects selections |
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| 54 | * and optionals. |
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| 55 | * </p> |
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| 56 | * <p> |
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| 57 | * The similarity of tasks is determined by comparing task traversals. A task traversal is an |
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| 58 | * ordered list of the leaf nodes of a task. This is similar to performing a minimal execution of |
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| 59 | * the task. The task traversals of two tasks are compared using string comparison algorithms. The |
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| 60 | * less differences the lists have, the more similar they are. |
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| 61 | * </p> |
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| 62 | * <p> |
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| 63 | * If two tasks are similar, they are merged. Merging is done based on the differences between |
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| 64 | * the task traversals. Two tasks are merged based on their instances. First, all instances of both |
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| 65 | * tasks are flattened. Instances of selections or commonalities of both tasks stay unflattened. |
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| 66 | * Then the lists resulting from this flattening are extended with instances of optionals and |
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| 67 | * selections which are introduced where required. Finally, the instances are put together to a |
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| 68 | * single task again by applying the {@link SequenceForTaskDetectionRule} on them. |
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| 69 | * </p> |
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| 70 | * <p> |
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| 71 | * Merging has to consider several specific situations. E.g., tasks may look similar but due to |
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| 72 | * iterations, they can not be merged correctly. Here, the rule ensures, that these so called |
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| 73 | * interleaving iterations are detected, not traversed when traversing a task and its instances, |
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| 74 | * and, therefore, preserved. |
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| 75 | * </p> |
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| 76 | * <p> |
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| 77 | * All details about this rule are described in the extended ACHI2014 paper of Harms "Trace-based |
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| 78 | * task tree generation". The extended paper was submitted to the IntSys IARIA Journal. |
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| 79 | * </p> |
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| 80 | * |
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| 81 | * @author Patrick Harms |
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| 82 | */ |
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| 83 | class CondenseSimilarTasksRule implements ISessionScopeRule { |
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| 84 | |
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| 85 | /** |
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| 86 | * <p> |
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| 87 | * the task factory to be used for creating substructures for the temporal |
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| 88 | * relationships identified during rule application |
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| 89 | * </p> |
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| 90 | */ |
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| 91 | private ITaskFactory taskFactory; |
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| 92 | /** |
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| 93 | * <p> |
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| 94 | * the task builder to be used for creating substructures for the temporal relationships |
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| 95 | * identified during rule application |
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| 96 | * </p> |
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| 97 | */ |
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| 98 | private ITaskBuilder taskBuilder; |
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| 99 | |
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| 100 | /** |
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| 101 | * <p> |
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| 102 | * the task handling strategy to be used for comparing tasks during iteration detection an trie |
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| 103 | * generation, i.e., after the tasks are harmonized |
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| 104 | * </p> |
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| 105 | */ |
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| 106 | private TaskHandlingStrategy identTaskHandlStrat; |
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| 107 | |
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| 108 | /** |
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| 109 | * <p> |
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| 110 | * instantiates the rule and initializes it with a task equality to be considered when |
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| 111 | * comparing tasks as well as a task factory and builder to be used for creating task |
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| 112 | * structures. |
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| 113 | * </p> |
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| 114 | * |
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| 115 | * @param minimalTaskEquality the task equality to be considered when comparing tasks |
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| 116 | * @param taskFactory the task factory to be used for creating substructures |
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| 117 | * @param taskBuilder the task builder to be used for creating substructures |
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| 118 | */ |
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| 119 | CondenseSimilarTasksRule(TaskEquality minimalTaskEquality, |
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| 120 | ITaskFactory taskFactory, |
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| 121 | ITaskBuilder taskBuilder) |
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| 122 | { |
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| 123 | this.taskFactory = taskFactory; |
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| 124 | this.taskBuilder = taskBuilder; |
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| 125 | |
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| 126 | this.identTaskHandlStrat = new TaskHandlingStrategy(TaskEquality.IDENTICAL); |
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| 127 | } |
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| 128 | |
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| 129 | /* (non-Javadoc) |
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| 130 | * @see java.lang.Object#toString() |
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| 131 | */ |
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| 132 | @Override |
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| 133 | public String toString() { |
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| 134 | return "CondenseSimilarTasksRule"; |
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| 135 | } |
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| 136 | |
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| 137 | /* (non-Javadoc) |
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| 138 | * @see de.ugoe.cs.autoquest.tasktrees.temporalrelation.ISessionScopeRule#apply(java.util.List) |
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| 139 | */ |
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| 140 | @Override |
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| 141 | public RuleApplicationResult apply(List<IUserSession> sessions) { |
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| 142 | |
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| 143 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 144 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> TEST IMPLEMENTATION >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 145 | /*final List<IEventTaskInstance> formerInstances = new ArrayList<>(); |
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| 146 | final List<IEventTaskInstance> newInstances = new ArrayList<>(); |
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| 147 | |
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| 148 | try { |
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| 149 | ITaskInstanceVisitor visitor = new DefaultTaskInstanceTraversingVisitor() { |
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| 150 | @Override |
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| 151 | public void visit(IEventTaskInstance eventTaskInstance) { |
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| 152 | formerInstances.add(eventTaskInstance); |
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| 153 | } |
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| 154 | }; |
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| 155 | |
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| 156 | PrintStream out = new PrintStream(new FileOutputStream(new File("01.out"))); |
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| 157 | |
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| 158 | for (IUserSession session : sessions) { |
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| 159 | new TaskTreeEncoder().encode(session, out, null); |
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| 160 | |
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| 161 | for (ITaskInstance instance : session) { |
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| 162 | instance.accept(visitor); |
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| 163 | } |
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| 164 | } |
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| 165 | out.close(); |
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| 166 | } |
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| 167 | catch (FileNotFoundException e) { |
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| 168 | e.printStackTrace(); |
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| 169 | } |
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| 170 | |
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| 171 | PrintStream fileout = null; |
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| 172 | try { |
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| 173 | fileout = new PrintStream("sysout.txt"); |
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| 174 | } |
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| 175 | catch (FileNotFoundException e1) { |
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| 176 | e1.printStackTrace(); |
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| 177 | } |
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| 178 | |
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| 179 | PrintStream origOut = System.out; |
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| 180 | if (fileout != null) { |
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| 181 | System.setOut(fileout); |
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| 182 | }*/ |
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| 183 | |
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| 184 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 185 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< TEST IMPLEMENTATION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 186 | |
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| 187 | |
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| 188 | RuleApplicationData appData = new RuleApplicationData(sessions); |
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| 189 | |
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| 190 | do { |
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| 191 | appData.setTaskModel(taskFactory.createTaskModel(sessions)); |
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| 192 | appData.setMostSimilarTasks(null); |
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[1854] | 193 | |
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| 194 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 195 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> TEST IMPLEMENTATION >>>>>>>>>>>>>>>>>>>>> |
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| 196 | // for (ITask task : appData.getTaskModel().getTasks()) { |
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| 197 | // if (task.getInstances().size() <= 0) { |
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| 198 | // throw new RuntimeException("task " + task + " has no instances anymore"); |
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| 199 | // } |
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| 200 | // |
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| 201 | // try { |
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| 202 | // new TaskTreeValidator().validate(task); |
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| 203 | // } |
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| 204 | // catch (Exception e) { |
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| 205 | // new TaskTreeEncoder().encode(task, System.err); |
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| 206 | // } |
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| 207 | // } |
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| 208 | // |
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| 209 | // new TaskTreeValidator().validate(sessions); |
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| 210 | |
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| 211 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 212 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< TEST IMPLEMENTATION <<<<<<<<<<<<<<<<<<<<<< |
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[1767] | 213 | |
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[1854] | 214 | |
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[1767] | 215 | Console.println("condensing " + appData.getTaskModel().getTasks().size() + " tasks"); |
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| 216 | |
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| 217 | getMostSimilarTasks(appData); |
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| 218 | |
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| 219 | if (appData.getMostSimilarTasks() != null) { |
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| 220 | for (SimilarTasks mostSimilarTask : appData.getMostSimilarTasks()) { |
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| 221 | handleSimilarTasks(mostSimilarTask, appData); |
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| 222 | appData.markAsAlreadyCondensed |
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| 223 | (mostSimilarTask.getLeftHandSide(), mostSimilarTask.getRightHandSide()); |
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| 224 | } |
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| 225 | } |
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| 226 | |
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| 227 | } |
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| 228 | while (appData.getMostSimilarTasks() != null); |
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| 229 | |
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| 230 | |
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| 231 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 232 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> TEST IMPLEMENTATION >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 233 | /*try { |
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| 234 | ITaskInstanceVisitor visitor = new DefaultTaskInstanceTraversingVisitor() { |
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| 235 | @Override |
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| 236 | public void visit(IEventTaskInstance eventTaskInstance) { |
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| 237 | newInstances.add(eventTaskInstance); |
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| 238 | } |
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| 239 | }; |
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| 240 | |
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| 241 | PrintStream out = new PrintStream(new FileOutputStream(new File("02.out"))); |
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| 242 | |
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| 243 | for (IUserSession session : sessions) { |
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| 244 | new TaskTreeEncoder().encode(session, out, null); |
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| 245 | |
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| 246 | for (ITaskInstance instance : session) { |
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| 247 | instance.accept(visitor); |
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| 248 | } |
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| 249 | } |
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| 250 | out.close(); |
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| 251 | } |
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| 252 | catch (FileNotFoundException e) { |
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| 253 | e.printStackTrace(); |
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| 254 | } |
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| 255 | |
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| 256 | System.out.println("sizes " + formerInstances.size() + " " + newInstances.size()); |
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| 257 | for (int i = 0; i < newInstances.size(); i++) { |
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| 258 | if (formerInstances.get(i) != newInstances.get(i)) { |
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| 259 | System.out.println(i + " " + formerInstances.get(i) + " " + newInstances.get(i)); |
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| 260 | } |
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| 261 | } |
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| 262 | |
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| 263 | System.setOut(origOut); |
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| 264 | fileout.close();*/ |
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| 265 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 266 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< TEST IMPLEMENTATION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 267 | |
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| 268 | |
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| 269 | return appData.finalizeRuleApplicationResult(); |
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| 270 | } |
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| 271 | |
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| 272 | /** |
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| 273 | * |
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| 274 | */ |
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| 275 | private void getMostSimilarTasks(RuleApplicationData appData) { |
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| 276 | // determine the list of interesting tasks |
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| 277 | Collection<ITask> allTasks = appData.getTaskModel().getTasks(); |
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| 278 | Iterator<ITask> taskIterator = allTasks.iterator(); |
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| 279 | List<ITask> taskList = new ArrayList<ITask>(allTasks.size()); |
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[1854] | 280 | |
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[1767] | 281 | while (taskIterator.hasNext()) { |
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| 282 | ITask task = taskIterator.next(); |
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| 283 | |
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[1854] | 284 | // only Sequences need to be compared with each other. Iterations differ only in their |
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| 285 | // child, i.e., in the child sequences. |
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| 286 | if (task instanceof ISequence) { |
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[1767] | 287 | taskList.add(task); |
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| 288 | } |
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| 289 | } |
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| 290 | |
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| 291 | if (taskList.size() > 1) { |
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| 292 | List<SimilarTasks> mostSimilarTasks = |
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| 293 | appData.getMostSimilarTasksDeterminer().getMostSimilarTasks |
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| 294 | (taskList, appData.getTaskModel()); |
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| 295 | |
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| 296 | if (mostSimilarTasks.size() > 0) { |
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| 297 | appData.setMostSimilarTasks(mostSimilarTasks); |
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| 298 | } |
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| 299 | } |
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| 300 | } |
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| 301 | |
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| 302 | /** |
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| 303 | * |
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| 304 | */ |
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| 305 | private void handleSimilarTasks(SimilarTasks similarTasks, RuleApplicationData appData) { |
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| 306 | // we need at least one instance per similar task. If not, it will not work and also |
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| 307 | // does not make sense. No instances anymore can be caused by merging and hence |
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| 308 | // discarding tasks in preceding merges. |
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| 309 | |
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[1854] | 310 | // similarTasks.dump(System.out); |
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[1767] | 311 | |
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| 312 | if ((similarTasks.getLeftHandSide().getInstances().size() <= 0) || |
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| 313 | (similarTasks.getRightHandSide().getInstances().size() <= 0)) |
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| 314 | { |
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| 315 | /*System.out.println("a task exists that has no instances"); |
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| 316 | System.out.println(similarTasks.getLeftHandSide() + " " + |
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| 317 | similarTasks.getLeftHandSide().getInstances().size()); |
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| 318 | System.out.println(similarTasks.getRightHandSide() + " " + |
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| 319 | similarTasks.getRightHandSide().getInstances().size());*/ |
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| 320 | |
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| 321 | throw new RuntimeException |
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| 322 | ("one and the same task seems to belong to several similar tasks"); |
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| 323 | } |
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| 324 | |
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| 325 | similarTasks = SimilarTasks.getMergableLevelOfSimilarity |
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| 326 | (similarTasks, identTaskHandlStrat.getTaskComparator()); |
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| 327 | |
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[1854] | 328 | if (similarTasks == null) { |
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| 329 | // this may happen, if no mergable level of similarity can be found |
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| 330 | return; |
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| 331 | } |
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| 332 | |
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| 333 | // similarTasks.dump(System.out); |
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[1767] | 334 | |
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| 335 | List<FlattenInstruction> flattenInstructions = |
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| 336 | getFlattenInstructions(similarTasks, appData); |
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| 337 | |
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[1854] | 338 | // for (FlattenInstruction instruction : flattenInstructions) { |
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| 339 | // instruction.dump(System.out); |
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| 340 | // } |
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[1767] | 341 | |
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| 342 | int noOfFlattenedInstances = similarTasks.getLeftHandSide().getInstances().size() + |
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| 343 | similarTasks.getRightHandSide().getInstances().size(); |
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| 344 | |
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| 345 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 346 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> TEST IMPLEMENTATION >>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 347 | List<TaskPath> excludes = new ArrayList<TaskPath>(); |
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| 348 | |
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| 349 | for (FlattenInstruction instruction : flattenInstructions) { |
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[1854] | 350 | //System.out.println("exclude " + instruction.path); |
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[1767] | 351 | excludes.add(instruction.path); |
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| 352 | } |
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| 353 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 354 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< TEST IMPLEMENTATION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 355 | |
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| 356 | Map<ITaskInstance, IUserSession> flattenedSessions = |
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| 357 | new HashMap<ITaskInstance, IUserSession>(noOfFlattenedInstances); |
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| 358 | flattenInstances |
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| 359 | (similarTasks.getLeftHandSide(), flattenInstructions, flattenedSessions, excludes); |
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| 360 | flattenInstances |
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| 361 | (similarTasks.getRightHandSide(), flattenInstructions, flattenedSessions, excludes); |
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| 362 | |
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[1854] | 363 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 364 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> TEST IMPLEMENTATION >>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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[1767] | 365 | /*for (IUserSession session : flattenedSessions.values()) { |
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[1854] | 366 | System.out.println("user session {"); |
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| 367 | |
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| 368 | for (ITaskInstance instance : session) { |
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| 369 | System.out.println(instance); |
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| 370 | } |
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| 371 | |
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| 372 | System.out.println("}"); |
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[1767] | 373 | }*/ |
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[1854] | 374 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 375 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< TEST IMPLEMENTATION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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[1767] | 376 | |
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| 377 | List<IUserSession> flattenedSessionList = |
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| 378 | new LinkedList<IUserSession>(flattenedSessions.values()); |
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| 379 | |
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| 380 | new SequenceForTaskDetectionRule |
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| 381 | (TaskEquality.IDENTICAL, taskFactory, taskBuilder).apply(flattenedSessionList); |
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| 382 | |
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| 383 | Map<ITaskInstance, ITaskInstance> replacements = new HashMap<ITaskInstance, ITaskInstance>(); |
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[1854] | 384 | ITask replacementTask = null; |
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| 385 | |
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[1767] | 386 | for (Map.Entry<ITaskInstance, IUserSession> entry : flattenedSessions.entrySet()) { |
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| 387 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 388 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> TEST IMPLEMENTATION >>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 389 | // the user sessions were sufficiently equal to have now only one common task as child |
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[1854] | 390 | |
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[1767] | 391 | if (entry.getValue().size() != 1) { |
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| 392 | //new TaskTreeEncoder().encode(entry.getValue(), System.out, excludes); |
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| 393 | throw new RuntimeException("flattened sessions were not combined as expected"); |
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| 394 | } |
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[1854] | 395 | |
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| 396 | if (replacementTask == null) { |
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| 397 | replacementTask = entry.getValue().get(0).getTask(); |
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| 398 | } |
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| 399 | else if (replacementTask != entry.getValue().get(0).getTask()) { |
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| 400 | throw new RuntimeException("two separate replacement tasks were calculated as " + |
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| 401 | "replacement, one for both tasks to be merged"); |
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| 402 | } |
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| 403 | |
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[1767] | 404 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 405 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< TEST IMPLEMENTATION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 406 | |
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| 407 | replacements.put(entry.getKey(), entry.getValue().get(0)); |
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| 408 | } |
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| 409 | |
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| 410 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 411 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> TEST IMPLEMENTATION >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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[1854] | 412 | // ((Task) replacementTask).setDescription |
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| 413 | // (replacementTask + " calculated as full replacement for " + |
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| 414 | // similarTasks.getLeftHandSide() + " and " + similarTasks.getRightHandSide()); |
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| 415 | |
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[1767] | 416 | int allInstances = similarTasks.getLeftHandSide().getInstances().size() + |
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| 417 | similarTasks.getRightHandSide().getInstances().size(); |
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| 418 | |
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| 419 | if (replacements.size() != allInstances) { |
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| 420 | throw new RuntimeException("number of replacements does not match number of instances"); |
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| 421 | } |
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| 422 | |
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| 423 | /*if (replacements.size() > 0) { |
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| 424 | System.out.println("replacement task is calculated to be: "); |
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| 425 | new TaskTreeEncoder().encode(replacements.values().iterator().next().getTask(), |
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| 426 | System.out); |
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| 427 | }*/ |
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| 428 | |
---|
| 429 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
---|
| 430 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< TEST IMPLEMENTATION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
---|
| 431 | |
---|
[1854] | 432 | // create also replacements for potential parent iterations or optionals |
---|
| 433 | IIteration harmonizedIteration = taskFactory.createNewIteration(); |
---|
| 434 | taskBuilder.setMarkedTask(harmonizedIteration, replacementTask); |
---|
[1767] | 435 | |
---|
[1854] | 436 | IOptional harmonizedOptional = taskFactory.createNewOptional(); |
---|
| 437 | taskBuilder.setMarkedTask(harmonizedOptional, replacementTask); |
---|
| 438 | |
---|
[1767] | 439 | for (IUserSession session : appData.getSessions()) { |
---|
[1854] | 440 | replaceTaskInstances(session, replacements, similarTasks, |
---|
| 441 | harmonizedIteration, harmonizedOptional); |
---|
| 442 | |
---|
| 443 | // several subsequent instances, which had formerly different tasks, may now have the |
---|
| 444 | // same. Hence, they need to be merged. But as everything else would be way too complex, |
---|
| 445 | // we only perform the merge, if they occur next to each other on the same level |
---|
| 446 | mergeSubsequentIdenticalMarkingTemporalRelationships(session); |
---|
[1767] | 447 | } |
---|
| 448 | |
---|
| 449 | |
---|
| 450 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
---|
| 451 | // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> TEST IMPLEMENTATION >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
---|
| 452 | if (replacements.size() != 0) { |
---|
| 453 | for (Map.Entry<ITaskInstance, ITaskInstance> entry : replacements.entrySet()) { |
---|
| 454 | System.out.println |
---|
| 455 | ("did not replace instance " + entry.getKey() + " with " + entry.getValue()); |
---|
| 456 | } |
---|
| 457 | |
---|
| 458 | throw new RuntimeException(); |
---|
| 459 | } |
---|
| 460 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
---|
| 461 | // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< TEST IMPLEMENTATION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
---|
| 462 | } |
---|
| 463 | |
---|
| 464 | /** |
---|
| 465 | * |
---|
| 466 | */ |
---|
| 467 | private List<FlattenInstruction> getFlattenInstructions(SimilarTasks similarTasks, |
---|
| 468 | RuleApplicationData appData) |
---|
| 469 | { |
---|
| 470 | TaskTraversal leftHandSideTraversal = similarTasks.getLeftHandSideTraversal(); |
---|
| 471 | TaskTraversal rightHandSideTraversal = similarTasks.getRightHandSideTraversal(); |
---|
| 472 | |
---|
| 473 | List<FlattenInstruction> result = new LinkedList<FlattenInstruction>(); |
---|
[1854] | 474 | TaskComparator comp = identTaskHandlStrat.getTaskComparator(); |
---|
[1767] | 475 | |
---|
| 476 | // first create instructions for the deltas |
---|
| 477 | for (Delta delta : similarTasks.getPatch().getDeltas()) { |
---|
| 478 | if ((delta.getType() == Delta.TYPE.INSERT) || |
---|
| 479 | (delta.getType() == Delta.TYPE.DELETE)) |
---|
| 480 | { |
---|
[1854] | 481 | // System.out.println("handling " + delta.getType()); |
---|
[1767] | 482 | Chunk chunk; |
---|
| 483 | TaskPath insertAfterPath = null; |
---|
| 484 | TaskPath insertBeforePath; |
---|
| 485 | |
---|
| 486 | if (delta.getType() == Delta.TYPE.INSERT) { |
---|
| 487 | chunk = delta.getRevised(); |
---|
| 488 | int pos = delta.getOriginal().getPosition(); |
---|
[1854] | 489 | // System.out.println(" position " + pos); |
---|
| 490 | |
---|
[1767] | 491 | if (pos > 0) { |
---|
| 492 | insertAfterPath = leftHandSideTraversal.getTraversalPaths()[pos - 1]; |
---|
| 493 | } |
---|
| 494 | insertBeforePath = leftHandSideTraversal.getTraversalPaths()[pos]; |
---|
| 495 | } |
---|
| 496 | else { |
---|
| 497 | chunk = delta.getOriginal(); |
---|
| 498 | int pos = delta.getRevised().getPosition(); |
---|
| 499 | if (pos > 0) { |
---|
| 500 | insertAfterPath = rightHandSideTraversal.getTraversalPaths()[pos - 1]; |
---|
| 501 | } |
---|
| 502 | insertBeforePath = rightHandSideTraversal.getTraversalPaths()[pos]; |
---|
| 503 | } |
---|
| 504 | |
---|
| 505 | ITask child = getTaskForChunk(chunk, appData); |
---|
| 506 | IOptional optional; |
---|
| 507 | |
---|
| 508 | if (child instanceof IOptional) { |
---|
| 509 | optional = (IOptional) child; |
---|
| 510 | } |
---|
| 511 | else { |
---|
| 512 | optional = taskFactory.createNewOptional(); |
---|
| 513 | taskBuilder.setMarkedTask(optional, child); |
---|
[1854] | 514 | // ((Task) optional).setDescription(optional.getDescription() + |
---|
| 515 | // " created for " + delta.getType()); |
---|
[1767] | 516 | optional = (IOptional) appData.ensureUnique(optional); |
---|
| 517 | createReplacementInstructions(chunk, optional, null, result); |
---|
| 518 | } |
---|
| 519 | |
---|
| 520 | // create a flatten instruction for the non-occurrence of the optional |
---|
| 521 | result.add(new FlattenInstruction(insertAfterPath, insertBeforePath, optional)); |
---|
| 522 | |
---|
| 523 | } |
---|
| 524 | else if (delta.getType() == Delta.TYPE.CHANGE) { |
---|
| 525 | ITask child1; |
---|
| 526 | ITask child2; |
---|
| 527 | |
---|
| 528 | // check, if the change covers the whole traversal. If so reuse the root task. |
---|
| 529 | // Otherwise, create intermediate tasks if required representing both sides |
---|
| 530 | // of changes |
---|
| 531 | if ((delta.getOriginal().getPosition() == 0) && |
---|
| 532 | (delta.getOriginal().size() == similarTasks.getLeftHandSideTraversal().size())) |
---|
| 533 | { |
---|
| 534 | child1 = similarTasks.getLeftHandSide(); |
---|
| 535 | } |
---|
| 536 | else { |
---|
| 537 | child1 = getTaskForChunk(delta.getOriginal(), appData); |
---|
| 538 | } |
---|
| 539 | |
---|
| 540 | if ((delta.getRevised().getPosition() == 0) && |
---|
| 541 | (delta.getRevised().size() == similarTasks.getRightHandSideTraversal().size())) |
---|
| 542 | { |
---|
| 543 | child2 = similarTasks.getRightHandSide(); |
---|
| 544 | } |
---|
| 545 | else { |
---|
| 546 | child2 = getTaskForChunk(delta.getRevised(), appData); |
---|
| 547 | } |
---|
| 548 | |
---|
| 549 | // check if either of the variants is an iteration or optional of the respective |
---|
| 550 | // other variant. If so, ensure, that the iteration or optional are preserved |
---|
| 551 | ITask markedTask1 = (child1 instanceof IMarkingTemporalRelationship) ? |
---|
| 552 | ((IMarkingTemporalRelationship) child1).getMarkedTask() : null; |
---|
| 553 | |
---|
| 554 | ITask markedTask2 = (child2 instanceof IMarkingTemporalRelationship) ? |
---|
| 555 | ((IMarkingTemporalRelationship) child2).getMarkedTask() : null; |
---|
| 556 | |
---|
| 557 | if (comp.equals(markedTask1, child2)) { |
---|
| 558 | if (child1 instanceof IOptional) { |
---|
| 559 | createReplacementInstructions |
---|
| 560 | (delta.getRevised(), (IOptional) child1, null, result); |
---|
| 561 | } |
---|
| 562 | else { |
---|
| 563 | throw new java.lang.UnsupportedOperationException("not implemented yet"); |
---|
| 564 | } |
---|
| 565 | } |
---|
| 566 | else if (comp.equals(markedTask2, child1)) { |
---|
| 567 | if (child2 instanceof IOptional) { |
---|
| 568 | createReplacementInstructions |
---|
| 569 | (delta.getOriginal(), (IOptional) child2, null, result); |
---|
| 570 | } |
---|
| 571 | else { |
---|
| 572 | throw new java.lang.UnsupportedOperationException("not implemented yet"); |
---|
| 573 | } |
---|
| 574 | } |
---|
| 575 | else if ((markedTask1 != null) && (comp.equals(markedTask1, markedTask2))) { |
---|
| 576 | throw new java.lang.UnsupportedOperationException("not implemented yet"); |
---|
| 577 | } |
---|
| 578 | else { |
---|
| 579 | // its time to create a selection of both variants. If one is already |
---|
| 580 | // a selection, it is reused and extended, if required |
---|
| 581 | ITask expectedChild1 = null; |
---|
| 582 | ITask expectedChild2 = null; |
---|
| 583 | |
---|
| 584 | ISelection selection = null; |
---|
| 585 | if (child1 instanceof ISelection) { |
---|
| 586 | selection = (ISelection) child1; |
---|
| 587 | } |
---|
| 588 | |
---|
| 589 | if (child2 instanceof ISelection) { |
---|
| 590 | if (selection == null) { |
---|
| 591 | // only child 2 is a selection --> extend it with child 1 |
---|
| 592 | selection = (ISelection) child2; |
---|
| 593 | addSelectionChildIfRequired(selection, child1); |
---|
| 594 | expectedChild1 = child1; |
---|
| 595 | } |
---|
| 596 | else { |
---|
| 597 | // both are selections --> extend child 1 with variants of child2 |
---|
| 598 | for (ITask child : ((ISelection) child2).getChildren()) { |
---|
| 599 | addSelectionChildIfRequired(selection, child); |
---|
| 600 | } |
---|
| 601 | } |
---|
| 602 | } |
---|
| 603 | else if (selection != null) { |
---|
| 604 | // only child 1 is a selection --> extend it with child 2 |
---|
| 605 | addSelectionChildIfRequired(selection, child2); |
---|
| 606 | expectedChild2 = child2; |
---|
| 607 | } |
---|
| 608 | else if (selection == null) { |
---|
| 609 | // none of both is already a selection, so create a new one with both |
---|
| 610 | // of the children as variants |
---|
| 611 | selection = taskFactory.createNewSelection(); |
---|
[1854] | 612 | // ((Task) selection).setDescription(selection.getDescription() + |
---|
| 613 | // " created for " + delta.getType()); |
---|
[1767] | 614 | taskBuilder.addChild(selection, child1); |
---|
| 615 | taskBuilder.addChild(selection, child2); |
---|
| 616 | expectedChild1 = child1; |
---|
| 617 | expectedChild2 = child2; |
---|
| 618 | } |
---|
| 619 | |
---|
| 620 | selection = (ISelection) appData.ensureUnique(selection); |
---|
| 621 | |
---|
| 622 | createReplacementInstructions |
---|
| 623 | (delta.getOriginal(), selection, expectedChild1, result); |
---|
| 624 | createReplacementInstructions |
---|
| 625 | (delta.getRevised(), selection, expectedChild2, result); |
---|
| 626 | } |
---|
| 627 | } |
---|
| 628 | } |
---|
| 629 | |
---|
| 630 | // create instructions to harmonize marking temporal relationships for untraversed tasks |
---|
| 631 | int leftHandSideIndex = 0; |
---|
| 632 | int rightHandSideIndex = 0; |
---|
| 633 | |
---|
| 634 | OUTER: |
---|
| 635 | while (leftHandSideIndex < leftHandSideTraversal.getTraversalPaths().length) { |
---|
| 636 | for (Delta delta : similarTasks.getPatch().getDeltas()) { |
---|
| 637 | if (delta.getOriginal().getPosition() == leftHandSideIndex) { |
---|
| 638 | if (delta.getType() == Delta.TYPE.INSERT) { |
---|
| 639 | rightHandSideIndex += delta.getRevised().size(); |
---|
| 640 | // do not continue OUTER to ensure, that the left hand side and the |
---|
| 641 | // right hand side coming directly after the insert are handled |
---|
| 642 | } |
---|
| 643 | else if (delta.getType() == Delta.TYPE.DELETE) { |
---|
| 644 | leftHandSideIndex += delta.getOriginal().size(); |
---|
| 645 | continue OUTER; |
---|
| 646 | } |
---|
| 647 | else if (delta.getType() == Delta.TYPE.CHANGE) { |
---|
| 648 | leftHandSideIndex += delta.getOriginal().size(); |
---|
| 649 | rightHandSideIndex += delta.getRevised().size(); |
---|
| 650 | continue OUTER; |
---|
| 651 | } |
---|
| 652 | } |
---|
| 653 | } |
---|
| 654 | |
---|
| 655 | TaskPath leftPath = leftHandSideTraversal.getTraversalPaths()[leftHandSideIndex]; |
---|
| 656 | TaskPath rightPath = rightHandSideTraversal.getTraversalPaths()[rightHandSideIndex]; |
---|
| 657 | |
---|
| 658 | if (comp.equals(leftPath.getLast(), rightPath.getLast())) { |
---|
| 659 | if (leftPath.getTask(leftPath.size() - 2) instanceof IOptional) { |
---|
| 660 | IOptional optional = (IOptional) leftPath.getTask(leftPath.size() - 2); |
---|
| 661 | result.add |
---|
| 662 | (new FlattenInstruction(leftPath.subPath(0, leftPath.size()), optional)); |
---|
| 663 | |
---|
| 664 | result.add(new FlattenInstruction(rightPath, optional)); |
---|
| 665 | } |
---|
| 666 | else if (rightPath.getTask(rightPath.size() - 2) instanceof IOptional) { |
---|
| 667 | IOptional optional = (IOptional) rightPath.getTask(rightPath.size() - 2); |
---|
| 668 | result.add |
---|
| 669 | (new FlattenInstruction(rightPath.subPath(0, rightPath.size()), optional)); |
---|
| 670 | |
---|
| 671 | result.add(new FlattenInstruction(leftPath, optional)); |
---|
| 672 | } |
---|
| 673 | } |
---|
| 674 | |
---|
| 675 | leftHandSideIndex++; |
---|
| 676 | rightHandSideIndex++; |
---|
| 677 | } |
---|
| 678 | |
---|
| 679 | |
---|
| 680 | // then create instructions for what stays the same |
---|
| 681 | OUTER: |
---|
| 682 | for (TaskPath path : leftHandSideTraversal.getTraversalPaths()) { |
---|
| 683 | for (FlattenInstruction instruction : result) { |
---|
| 684 | if (instruction.matches(path)) { |
---|
| 685 | continue OUTER; |
---|
| 686 | } |
---|
| 687 | } |
---|
| 688 | |
---|
| 689 | result.add(new FlattenInstruction(path)); |
---|
| 690 | } |
---|
| 691 | |
---|
| 692 | OUTER: |
---|
| 693 | for (TaskPath path : rightHandSideTraversal.getTraversalPaths()) { |
---|
| 694 | for (FlattenInstruction instruction : result) { |
---|
| 695 | if (instruction.matches(path)) { |
---|
| 696 | continue OUTER; |
---|
| 697 | } |
---|
| 698 | } |
---|
| 699 | |
---|
| 700 | result.add(new FlattenInstruction(path)); |
---|
| 701 | } |
---|
| 702 | |
---|
| 703 | return result; |
---|
| 704 | } |
---|
| 705 | |
---|
| 706 | /** |
---|
| 707 | * |
---|
| 708 | */ |
---|
| 709 | private void addSelectionChildIfRequired(ISelection selection, ITask child) { |
---|
| 710 | for (ITask candidate : selection.getChildren()) { |
---|
| 711 | if (identTaskHandlStrat.getTaskComparator().equals(candidate, child)) { |
---|
| 712 | return; |
---|
| 713 | } |
---|
| 714 | } |
---|
| 715 | |
---|
| 716 | taskBuilder.addChild(selection, child); |
---|
| 717 | } |
---|
| 718 | |
---|
| 719 | /** |
---|
| 720 | * |
---|
| 721 | */ |
---|
| 722 | private ITask getTaskForChunk(Chunk chunk, RuleApplicationData appData) { |
---|
| 723 | if (chunk.size() == 1) { |
---|
| 724 | TaskPath path = (TaskPath) chunk.getLines().get(0); |
---|
| 725 | return path.getTask(path.size() - 1); |
---|
| 726 | } |
---|
| 727 | else { |
---|
| 728 | ISequence task = taskFactory.createNewSequence(); |
---|
[1854] | 729 | // ((Task) task).setDescription(task.getDescription() + |
---|
| 730 | // " created to represent a chunk"); |
---|
| 731 | |
---|
[1767] | 732 | for (Object pathObj : chunk.getLines()) { |
---|
| 733 | TaskPath path = (TaskPath) pathObj; |
---|
| 734 | taskBuilder.addChild(task, path.getLast()); |
---|
| 735 | } |
---|
| 736 | |
---|
| 737 | return appData.ensureUnique(task); |
---|
| 738 | } |
---|
| 739 | } |
---|
| 740 | |
---|
| 741 | /** |
---|
| 742 | * |
---|
| 743 | */ |
---|
| 744 | private void createReplacementInstructions(Chunk chunk, |
---|
| 745 | ITask replacement, |
---|
| 746 | ITask selectedChild, |
---|
| 747 | List<FlattenInstruction> result) |
---|
| 748 | { |
---|
| 749 | // create a flatten instruction for the occurrence of the replacement |
---|
| 750 | for (Object pathObj : chunk.getLines()) { |
---|
| 751 | TaskPath path = (TaskPath) pathObj; |
---|
| 752 | |
---|
| 753 | if (replacement instanceof IOptional) { |
---|
| 754 | result.add(new FlattenInstruction(path, (IOptional) replacement)); |
---|
| 755 | } |
---|
| 756 | else if (replacement instanceof ISelection) { |
---|
| 757 | result.add |
---|
| 758 | (new FlattenInstruction(path, (ISelection) replacement, selectedChild)); |
---|
| 759 | } |
---|
| 760 | } |
---|
| 761 | } |
---|
| 762 | |
---|
| 763 | /** |
---|
| 764 | * |
---|
| 765 | */ |
---|
| 766 | private void flattenInstances(ITask task, |
---|
| 767 | List<FlattenInstruction> flattenInstructions, |
---|
| 768 | Map<ITaskInstance, IUserSession> flattenedSessions, |
---|
| 769 | List<TaskPath> excludes) |
---|
| 770 | { |
---|
| 771 | //int i = 0; |
---|
| 772 | for (ITaskInstance instance : task.getInstances()) { |
---|
| 773 | /*System.out.println("flattening instance " + i++ + " of task " + task); |
---|
| 774 | new TaskTreeEncoder().encode(instance, System.out, excludes);*/ |
---|
| 775 | |
---|
| 776 | TaskPath taskPath = new TaskPath(); |
---|
| 777 | taskPath.add(instance.getTask(), 0); |
---|
| 778 | IUserSession session = taskFactory.createUserSession(); |
---|
| 779 | flattenInstance(instance, taskPath, flattenInstructions, session, |
---|
| 780 | new LinkedList<TaskPath>()); |
---|
| 781 | |
---|
| 782 | //new TaskTreeEncoder().encode(session, System.out, excludes); |
---|
| 783 | |
---|
| 784 | flattenedSessions.put(instance, session); |
---|
| 785 | } |
---|
| 786 | } |
---|
| 787 | |
---|
| 788 | /** |
---|
| 789 | * |
---|
| 790 | */ |
---|
| 791 | private void flattenInstance(ITaskInstance instance, |
---|
| 792 | TaskPath taskPath, |
---|
| 793 | List<FlattenInstruction> flattenInstructions, |
---|
| 794 | IUserSession session, |
---|
| 795 | List<TaskPath> previousPaths) |
---|
| 796 | { |
---|
| 797 | boolean instructionApplied = false; |
---|
| 798 | |
---|
[1854] | 799 | TaskComparator comp = identTaskHandlStrat.getTaskComparator(); |
---|
[1767] | 800 | |
---|
| 801 | //System.out.println("applying instructions on " + taskPath); |
---|
| 802 | |
---|
| 803 | for (FlattenInstruction instruction : flattenInstructions) { |
---|
| 804 | if (instruction.matches(taskPath)) { |
---|
| 805 | //System.out.print("found instruction "); |
---|
[1854] | 806 | //instruction.dump(System.out); |
---|
[1767] | 807 | |
---|
| 808 | switch (instruction.getInstruction()) { |
---|
| 809 | case DONT_TRAVERSE: { |
---|
| 810 | if (instance != null) { |
---|
| 811 | taskBuilder.addTaskInstance(session, instance); |
---|
| 812 | } |
---|
| 813 | instructionApplied = true; |
---|
| 814 | break; |
---|
| 815 | } |
---|
| 816 | case MAKE_OPTIONAL: { |
---|
| 817 | instructionApplied = true; |
---|
| 818 | |
---|
| 819 | if (instance == null) { |
---|
| 820 | break; |
---|
| 821 | } |
---|
| 822 | |
---|
| 823 | IOptional optional = instruction.getOptional(); |
---|
| 824 | |
---|
| 825 | if (comp.equals(optional, instance.getTask())) { |
---|
| 826 | // the instance is already an instance of the correct optional --> reuse |
---|
| 827 | taskBuilder.addTaskInstance(session, instance); |
---|
| 828 | } |
---|
| 829 | else if (comp.equals(optional.getMarkedTask(), instance.getTask())) { |
---|
| 830 | IOptionalInstance optionalInstance = |
---|
| 831 | taskFactory.createNewTaskInstance(optional); |
---|
| 832 | taskBuilder.setChild(optionalInstance, instance); |
---|
| 833 | taskBuilder.addTaskInstance(session, optionalInstance); |
---|
| 834 | } |
---|
| 835 | else if (optional.getMarkedTask() instanceof ISequence) { |
---|
| 836 | // first check, if the instance was already created, if not create it |
---|
| 837 | ISequenceInstance sequenceInstance = ensureSequenceChildInstanceFor |
---|
| 838 | (optional, (ISequence) optional.getMarkedTask(), session); |
---|
| 839 | |
---|
| 840 | taskBuilder.addChild(sequenceInstance, instance); |
---|
| 841 | } |
---|
| 842 | break; |
---|
| 843 | } |
---|
| 844 | case MAKE_SELECTION: { |
---|
| 845 | instructionApplied = true; |
---|
| 846 | |
---|
| 847 | if (instance == null) { |
---|
| 848 | break; |
---|
| 849 | } |
---|
| 850 | |
---|
| 851 | ISelection selection = instruction.getSelection(); |
---|
| 852 | |
---|
| 853 | if (comp.equals(instruction.getSelectedChild(), instance.getTask())) { |
---|
| 854 | ISelectionInstance selectionInstance = |
---|
| 855 | taskFactory.createNewTaskInstance(selection); |
---|
| 856 | taskBuilder.setChild(selectionInstance, instance); |
---|
| 857 | taskBuilder.addTaskInstance(session, selectionInstance); |
---|
| 858 | } |
---|
| 859 | else if (instruction.getSelectedChild() == null) { |
---|
| 860 | // both variants were already selections. They will have been merged. |
---|
| 861 | // Hence we can reuse the child instances of the existing selection |
---|
| 862 | // instances. |
---|
| 863 | if (comp.equals(instance.getTask(), selection)) { |
---|
| 864 | taskBuilder.addTaskInstance(session, instance); |
---|
| 865 | } |
---|
| 866 | else { |
---|
| 867 | ISelectionInstance selectionInstance = |
---|
| 868 | taskFactory.createNewTaskInstance(selection); |
---|
| 869 | taskBuilder.setChild(selectionInstance, |
---|
| 870 | ((ISelectionInstance) instance).getChild()); |
---|
| 871 | taskBuilder.addTaskInstance(session, selectionInstance); |
---|
| 872 | |
---|
| 873 | taskBuilder.discardTaskInstance(instance); |
---|
| 874 | } |
---|
| 875 | } |
---|
| 876 | else if (instruction.getSelectedChild() instanceof ISequence) { |
---|
| 877 | // first check, if the instance was already created, if not create it |
---|
| 878 | ISequenceInstance sequenceInstance = ensureSequenceChildInstanceFor |
---|
| 879 | (selection, (ISequence) instruction.getSelectedChild(), session); |
---|
| 880 | |
---|
| 881 | taskBuilder.addChild(sequenceInstance, instance); |
---|
| 882 | } |
---|
| 883 | |
---|
| 884 | break; |
---|
| 885 | } |
---|
| 886 | case INTEGRATE_OPTIONAL: { |
---|
| 887 | TaskPath previousPath = previousPaths.size() > 0 ? |
---|
| 888 | previousPaths.get(previousPaths.size() - 1) : null; |
---|
| 889 | |
---|
| 890 | if (pathsMatch(instruction.getPrecedingPath(), previousPath)) { |
---|
| 891 | IOptional optional = instruction.getOptional(); |
---|
| 892 | IOptionalInstance optionalInstance = |
---|
| 893 | taskFactory.createNewTaskInstance(optional); |
---|
| 894 | taskBuilder.addTaskInstance(session, optionalInstance); |
---|
| 895 | } |
---|
| 896 | |
---|
| 897 | if (instance != null) { |
---|
| 898 | taskBuilder.addTaskInstance(session, instance); |
---|
| 899 | } |
---|
| 900 | |
---|
| 901 | instructionApplied = true; |
---|
| 902 | break; |
---|
| 903 | } |
---|
| 904 | default : { |
---|
| 905 | throw new RuntimeException("unknown instruction type"); |
---|
| 906 | } |
---|
| 907 | } |
---|
| 908 | } |
---|
| 909 | |
---|
| 910 | if (instructionApplied) { |
---|
| 911 | break; |
---|
| 912 | } |
---|
| 913 | } |
---|
| 914 | |
---|
| 915 | if (!instructionApplied) { |
---|
| 916 | ITask task = taskPath.getLast(); |
---|
| 917 | if (task instanceof IIteration) { |
---|
| 918 | taskPath.add(((IIteration) task).getMarkedTask(), 0); |
---|
| 919 | |
---|
| 920 | if (instance != null) { |
---|
| 921 | for (ITaskInstance child : (IIterationInstance) instance) { |
---|
| 922 | flattenInstance |
---|
| 923 | (child, taskPath, flattenInstructions, session, previousPaths); |
---|
| 924 | } |
---|
| 925 | } |
---|
| 926 | else { |
---|
| 927 | flattenInstance(null, taskPath, flattenInstructions, session, previousPaths); |
---|
| 928 | } |
---|
| 929 | |
---|
| 930 | taskPath.removeLast(); |
---|
| 931 | } |
---|
| 932 | else if (task instanceof ISequence) { |
---|
| 933 | List<ITask> children = ((ISequence) task).getChildren(); |
---|
| 934 | for (int i = 0; i < children.size(); i++) { |
---|
| 935 | ITaskInstance child = null; |
---|
| 936 | if (instance != null) { |
---|
| 937 | child = ((ISequenceInstance) instance).get(i); |
---|
| 938 | } |
---|
| 939 | taskPath.add(children.get(i), i); |
---|
| 940 | flattenInstance |
---|
| 941 | (child, taskPath, flattenInstructions, session, previousPaths); |
---|
| 942 | taskPath.removeLast(); |
---|
| 943 | } |
---|
| 944 | } |
---|
| 945 | else if (task instanceof ISelection) { |
---|
| 946 | if (instance != null) { |
---|
| 947 | taskPath.add(((ISelectionInstance) instance).getChild().getTask(), 0); |
---|
| 948 | flattenInstance(((ISelectionInstance) instance).getChild(), taskPath, |
---|
| 949 | flattenInstructions, session, previousPaths); |
---|
| 950 | taskPath.removeLast(); |
---|
| 951 | } |
---|
| 952 | else { |
---|
| 953 | // check if the selection has any child for which a rule must be considered |
---|
| 954 | List<ITask> children = ((ISelection) task).getChildren(); |
---|
| 955 | for (int i = 0; i < children.size(); i++) { |
---|
| 956 | taskPath.add(children.get(i), i); |
---|
| 957 | flattenInstance |
---|
| 958 | (null, taskPath, flattenInstructions, session, previousPaths); |
---|
| 959 | taskPath.removeLast(); |
---|
| 960 | } |
---|
| 961 | } |
---|
| 962 | } |
---|
| 963 | else if (task instanceof IOptional) { |
---|
| 964 | taskPath.add(((IOptional) task).getMarkedTask(), 0); |
---|
| 965 | ITaskInstance child = null; |
---|
| 966 | if (instance != null) { |
---|
| 967 | child = ((IOptionalInstance) instance).getChild(); |
---|
| 968 | } |
---|
| 969 | flattenInstance(child, taskPath, flattenInstructions, session, previousPaths); |
---|
| 970 | taskPath.removeLast(); |
---|
| 971 | |
---|
| 972 | if ((instance != null) && (child == null)) { |
---|
| 973 | // add the empty optional instance |
---|
| 974 | taskBuilder.addTaskInstance(session, instance); |
---|
| 975 | previousPaths.add(new TaskPath(taskPath)); |
---|
| 976 | } |
---|
| 977 | } |
---|
| 978 | else if (instance != null) { |
---|
| 979 | taskBuilder.addTaskInstance(session, instance); |
---|
| 980 | previousPaths.add(new TaskPath(taskPath)); |
---|
| 981 | } |
---|
| 982 | } |
---|
| 983 | else { |
---|
| 984 | previousPaths.add(new TaskPath(taskPath)); |
---|
| 985 | } |
---|
| 986 | } |
---|
| 987 | |
---|
| 988 | /** |
---|
| 989 | * |
---|
| 990 | */ |
---|
| 991 | private ISequenceInstance ensureSequenceChildInstanceFor(ITask replacement, |
---|
| 992 | ISequence expectedChildSequence, |
---|
| 993 | IUserSession session) |
---|
| 994 | { |
---|
| 995 | // first check, if there is already an instance of the expected sequence. If so, check if |
---|
| 996 | // its child is a sequence instance. If not create a new task instance with an appropriate |
---|
| 997 | // sequence instance |
---|
| 998 | ITaskInstance prevInstance = |
---|
| 999 | session.size() > 0 ? session.get(session.size() - 1) : null; |
---|
| 1000 | |
---|
| 1001 | ISequenceInstance sequenceInstance = null; |
---|
| 1002 | |
---|
| 1003 | if ((prevInstance != null) && |
---|
| 1004 | (identTaskHandlStrat.getTaskComparator().equals(prevInstance.getTask(), replacement))) |
---|
| 1005 | { |
---|
| 1006 | if ((prevInstance instanceof IOptionalInstance) && |
---|
| 1007 | (((IOptionalInstance) prevInstance).getChild() instanceof ISequenceInstance)) |
---|
| 1008 | { |
---|
| 1009 | sequenceInstance = |
---|
| 1010 | (ISequenceInstance) ((IOptionalInstance) prevInstance).getChild(); |
---|
| 1011 | } |
---|
| 1012 | else if ((prevInstance instanceof ISelectionInstance) && |
---|
| 1013 | (((ISelectionInstance) prevInstance).getChild() instanceof ISequenceInstance)) |
---|
| 1014 | { |
---|
| 1015 | sequenceInstance = |
---|
| 1016 | (ISequenceInstance) ((ISelectionInstance) prevInstance).getChild(); |
---|
| 1017 | } |
---|
| 1018 | } |
---|
| 1019 | |
---|
| 1020 | // although we found a sequence instance as expected, this instance might already be fully |
---|
| 1021 | // created and a new (iterated) one must be created. Check for it and handle correctly |
---|
| 1022 | if ((sequenceInstance != null) && |
---|
| 1023 | (sequenceInstance.size() == expectedChildSequence.getChildren().size())) |
---|
| 1024 | { |
---|
| 1025 | sequenceInstance = null; |
---|
| 1026 | } |
---|
| 1027 | |
---|
| 1028 | if (sequenceInstance == null) { |
---|
| 1029 | //System.out.println("creating new sequence instance of selected child"); |
---|
| 1030 | sequenceInstance = taskFactory.createNewTaskInstance(expectedChildSequence); |
---|
| 1031 | |
---|
| 1032 | ITaskInstance replacementInstance = null; |
---|
| 1033 | |
---|
| 1034 | if (replacement instanceof IOptional) { |
---|
| 1035 | replacementInstance = taskFactory.createNewTaskInstance((IOptional) replacement); |
---|
| 1036 | taskBuilder.setChild((IOptionalInstance) replacementInstance, sequenceInstance); |
---|
| 1037 | } |
---|
| 1038 | else if (replacement instanceof ISelection) { |
---|
| 1039 | |
---|
| 1040 | /*System.out.println("replacement: "); |
---|
| 1041 | new TaskTreeEncoder().encode(replacement, System.out); |
---|
| 1042 | |
---|
| 1043 | System.out.println("expectedChild: "); |
---|
| 1044 | new TaskTreeEncoder().encode(expectedChildSequence, System.out);*/ |
---|
| 1045 | |
---|
| 1046 | replacementInstance = taskFactory.createNewTaskInstance((ISelection) replacement); |
---|
| 1047 | taskBuilder.setChild((ISelectionInstance) replacementInstance, sequenceInstance); |
---|
| 1048 | } |
---|
| 1049 | |
---|
| 1050 | taskBuilder.addTaskInstance(session, replacementInstance); |
---|
| 1051 | } |
---|
| 1052 | |
---|
| 1053 | return sequenceInstance; |
---|
| 1054 | } |
---|
| 1055 | |
---|
| 1056 | /** |
---|
| 1057 | * |
---|
| 1058 | */ |
---|
| 1059 | private void replaceTaskInstances(ITaskInstanceList taskInstanceList, |
---|
| 1060 | Map<ITaskInstance, ITaskInstance> replacements, |
---|
[1854] | 1061 | SimilarTasks similarTasks, |
---|
| 1062 | IIteration harmonizedIteration, |
---|
| 1063 | IOptional harmonizedOptional) |
---|
[1767] | 1064 | { |
---|
| 1065 | for (int i = 0; i < taskInstanceList.size(); i++) { |
---|
| 1066 | ITaskInstance childInstance = taskInstanceList.get(i); |
---|
| 1067 | ITaskInstance replacement = replacements.remove(childInstance); |
---|
| 1068 | |
---|
| 1069 | if (replacement != null) { |
---|
| 1070 | |
---|
[1854] | 1071 | // update the model for sequences (others are updated in the calling method) |
---|
[1767] | 1072 | if (taskInstanceList instanceof ISequenceInstance) { |
---|
| 1073 | ISequence task = ((ISequenceInstance) taskInstanceList).getSequence(); |
---|
| 1074 | taskBuilder.setChild(task, i, replacement.getTask()); |
---|
| 1075 | } |
---|
| 1076 | |
---|
| 1077 | // perform the actual replacement and throw away the instance |
---|
| 1078 | taskBuilder.setTaskInstance(taskInstanceList, i, replacement); |
---|
| 1079 | TaskPath path = new TaskPath(); |
---|
| 1080 | path.add(childInstance.getTask(), 0); |
---|
| 1081 | discardTaskInstancesNotBelongingToTraversals(childInstance, path, similarTasks); |
---|
| 1082 | } |
---|
[1854] | 1083 | else { |
---|
| 1084 | ITask modelUpdate = replaceTaskInstances(childInstance, replacements, similarTasks, |
---|
| 1085 | harmonizedIteration, harmonizedOptional); |
---|
| 1086 | |
---|
| 1087 | if (modelUpdate != null) { |
---|
| 1088 | if (taskInstanceList instanceof ISequenceInstance) { |
---|
| 1089 | taskBuilder.setChild |
---|
| 1090 | (((ISequenceInstance) taskInstanceList).getSequence(), i, modelUpdate); |
---|
| 1091 | } |
---|
| 1092 | } |
---|
[1767] | 1093 | } |
---|
| 1094 | } |
---|
| 1095 | } |
---|
| 1096 | |
---|
| 1097 | /** |
---|
| 1098 | * |
---|
| 1099 | */ |
---|
| 1100 | private void replaceTaskInstances(IOptionalInstance optionalInstance, |
---|
| 1101 | Map<ITaskInstance, ITaskInstance> replacements, |
---|
[1854] | 1102 | SimilarTasks similarTasks, |
---|
| 1103 | IIteration harmonizedIteration, |
---|
| 1104 | IOptional harmonizedOptional) |
---|
[1767] | 1105 | { |
---|
| 1106 | ITaskInstance childInstance = optionalInstance.getChild(); |
---|
| 1107 | |
---|
| 1108 | if (childInstance != null) { |
---|
| 1109 | ITaskInstance replacement = replacements.remove(childInstance); |
---|
| 1110 | |
---|
| 1111 | if (replacement != null) { |
---|
[1854] | 1112 | // do not update the model --> is updated in the calling method |
---|
[1767] | 1113 | |
---|
| 1114 | // perform the actual replacement and throw away the instance |
---|
| 1115 | taskBuilder.setChild(optionalInstance, replacement); |
---|
| 1116 | TaskPath path = new TaskPath(); |
---|
| 1117 | path.add(childInstance.getTask(), 0); |
---|
| 1118 | discardTaskInstancesNotBelongingToTraversals(childInstance, path, similarTasks); |
---|
| 1119 | } |
---|
[1854] | 1120 | else { |
---|
| 1121 | ITask modelUpdate = replaceTaskInstances(childInstance, replacements, similarTasks, |
---|
| 1122 | harmonizedIteration, harmonizedOptional); |
---|
| 1123 | |
---|
| 1124 | if (modelUpdate != null) { |
---|
| 1125 | taskBuilder.setMarkedTask(optionalInstance.getOptional(), modelUpdate); |
---|
| 1126 | } |
---|
[1767] | 1127 | } |
---|
| 1128 | } |
---|
| 1129 | } |
---|
| 1130 | |
---|
| 1131 | /** |
---|
| 1132 | * |
---|
| 1133 | */ |
---|
| 1134 | private void replaceTaskInstances(ISelectionInstance selectionInstance, |
---|
| 1135 | Map<ITaskInstance, ITaskInstance> replacements, |
---|
[1854] | 1136 | SimilarTasks similarTasks, |
---|
| 1137 | IIteration harmonizedIteration, |
---|
| 1138 | IOptional harmonizedOptional) |
---|
[1767] | 1139 | { |
---|
[1854] | 1140 | TaskComparator comparator = identTaskHandlStrat.getTaskComparator(); |
---|
[1767] | 1141 | |
---|
| 1142 | ITaskInstance childInstance = selectionInstance.getChild(); |
---|
| 1143 | |
---|
| 1144 | if (childInstance != null) { |
---|
| 1145 | ITaskInstance replacement = replacements.remove(childInstance); |
---|
| 1146 | |
---|
| 1147 | if (replacement != null) { |
---|
| 1148 | |
---|
| 1149 | if (replacement instanceof ISelectionInstance) { |
---|
| 1150 | taskBuilder.discardTaskInstance(replacement); |
---|
| 1151 | replacement = ((ISelectionInstance) replacement).getChild(); |
---|
| 1152 | } |
---|
| 1153 | |
---|
| 1154 | // update the model |
---|
| 1155 | // we replace all instances of the merged tasks with instances of a new task. |
---|
| 1156 | // hence, we also have to remove the task of the replaced children from the |
---|
| 1157 | // available variants of the selection |
---|
| 1158 | taskBuilder.removeChild(selectionInstance.getSelection(), childInstance.getTask()); |
---|
| 1159 | |
---|
| 1160 | boolean found = false; |
---|
| 1161 | for (ITask child : selectionInstance.getSelection().getChildren()) { |
---|
| 1162 | if (comparator.equals(child, replacement.getTask())) { |
---|
| 1163 | found = true; |
---|
| 1164 | break; |
---|
| 1165 | } |
---|
| 1166 | } |
---|
| 1167 | |
---|
| 1168 | if (!found) { |
---|
| 1169 | taskBuilder.addChild(selectionInstance.getSelection(), replacement.getTask()); |
---|
| 1170 | } |
---|
| 1171 | |
---|
| 1172 | // perform the actual replacement and throw away the instance |
---|
| 1173 | taskBuilder.setChild(selectionInstance, replacement); |
---|
| 1174 | TaskPath path = new TaskPath(); |
---|
| 1175 | path.add(childInstance.getTask(), 0); |
---|
| 1176 | discardTaskInstancesNotBelongingToTraversals(childInstance, path, similarTasks); |
---|
| 1177 | } |
---|
[1854] | 1178 | else { |
---|
[1953] | 1179 | ITask previousChildTask = childInstance.getTask(); |
---|
[1854] | 1180 | ITask modelUpdate = replaceTaskInstances(childInstance, replacements, similarTasks, |
---|
| 1181 | harmonizedIteration, harmonizedOptional); |
---|
| 1182 | |
---|
| 1183 | if (modelUpdate != null) { |
---|
[1953] | 1184 | taskBuilder.removeChild(selectionInstance.getSelection(), previousChildTask); |
---|
[1854] | 1185 | |
---|
| 1186 | boolean found = false; |
---|
| 1187 | for (ITask child : selectionInstance.getSelection().getChildren()) { |
---|
| 1188 | if (comparator.equals(child, modelUpdate)) { |
---|
| 1189 | found = true; |
---|
| 1190 | break; |
---|
| 1191 | } |
---|
| 1192 | } |
---|
| 1193 | |
---|
| 1194 | if (!found) { |
---|
| 1195 | taskBuilder.addChild(selectionInstance.getSelection(), modelUpdate); |
---|
| 1196 | } |
---|
| 1197 | } |
---|
[1767] | 1198 | } |
---|
[1854] | 1199 | } |
---|
| 1200 | } |
---|
| 1201 | |
---|
| 1202 | /** |
---|
| 1203 | * |
---|
| 1204 | */ |
---|
| 1205 | private ITask replaceTaskInstances(ITaskInstance childInstance, |
---|
| 1206 | Map<ITaskInstance, ITaskInstance> replacements, |
---|
| 1207 | SimilarTasks similarTasks, |
---|
| 1208 | IIteration harmonizedIteration, |
---|
| 1209 | IOptional harmonizedOptional) |
---|
| 1210 | { |
---|
| 1211 | ITask modelUpdate = null; |
---|
| 1212 | |
---|
| 1213 | if (childInstance instanceof IIterationInstance) { |
---|
| 1214 | ITask markedTask = ((IIterationInstance) childInstance).getIteration().getMarkedTask(); |
---|
| 1215 | |
---|
| 1216 | if ((markedTask == similarTasks.getLeftHandSide()) || |
---|
| 1217 | (markedTask == similarTasks.getRightHandSide())) |
---|
| 1218 | { |
---|
| 1219 | taskBuilder.setTask(childInstance, harmonizedIteration); |
---|
| 1220 | modelUpdate = harmonizedIteration; |
---|
[1767] | 1221 | } |
---|
[1854] | 1222 | |
---|
| 1223 | replaceTaskInstances((ITaskInstanceList) childInstance, replacements, similarTasks, |
---|
| 1224 | harmonizedIteration, harmonizedOptional); |
---|
| 1225 | } |
---|
| 1226 | else if (childInstance instanceof IOptionalInstance) { |
---|
| 1227 | ITask markedTask = ((IOptionalInstance) childInstance).getOptional().getMarkedTask(); |
---|
| 1228 | |
---|
| 1229 | if ((markedTask == similarTasks.getLeftHandSide()) || |
---|
| 1230 | (markedTask == similarTasks.getRightHandSide())) |
---|
| 1231 | { |
---|
| 1232 | taskBuilder.setTask(childInstance, harmonizedOptional); |
---|
| 1233 | modelUpdate = harmonizedOptional; |
---|
[1767] | 1234 | } |
---|
[1854] | 1235 | |
---|
| 1236 | replaceTaskInstances((IOptionalInstance) childInstance, replacements, similarTasks, |
---|
| 1237 | harmonizedIteration, harmonizedOptional); |
---|
[1767] | 1238 | } |
---|
[1854] | 1239 | else if (childInstance instanceof ISelectionInstance) { |
---|
| 1240 | replaceTaskInstances((ISelectionInstance) childInstance, replacements, similarTasks, |
---|
| 1241 | harmonizedIteration, harmonizedOptional); |
---|
| 1242 | } |
---|
| 1243 | else if (childInstance instanceof ISequenceInstance) { |
---|
| 1244 | replaceTaskInstances((ITaskInstanceList) childInstance, replacements, similarTasks, |
---|
| 1245 | harmonizedIteration, harmonizedOptional); |
---|
| 1246 | } |
---|
| 1247 | |
---|
| 1248 | return modelUpdate; |
---|
[1767] | 1249 | } |
---|
| 1250 | |
---|
| 1251 | /** |
---|
| 1252 | * |
---|
| 1253 | */ |
---|
| 1254 | private void discardTaskInstancesNotBelongingToTraversals(ITaskInstance instance, |
---|
| 1255 | TaskPath pathToInstance, |
---|
| 1256 | SimilarTasks similarTasks) |
---|
| 1257 | { |
---|
| 1258 | boolean discarded = false; |
---|
| 1259 | for (TaskPath candidate : similarTasks.getLeftHandSideTraversal().getTraversalPaths()) { |
---|
| 1260 | if (candidate.size() > pathToInstance.size()) { |
---|
| 1261 | TaskPath potentialEqualSubPath = candidate.subPath(0, pathToInstance.size()); |
---|
| 1262 | if (pathsMatch(potentialEqualSubPath, pathToInstance)) { |
---|
| 1263 | taskBuilder.discardTaskInstance(instance); |
---|
| 1264 | discarded = true; |
---|
| 1265 | break; |
---|
| 1266 | } |
---|
| 1267 | } |
---|
| 1268 | } |
---|
| 1269 | |
---|
| 1270 | if (!discarded) { |
---|
| 1271 | for (TaskPath candidate : similarTasks.getRightHandSideTraversal().getTraversalPaths()) { |
---|
| 1272 | if (candidate.size() > pathToInstance.size()) { |
---|
| 1273 | TaskPath potentialEqualSubPath = candidate.subPath(0, pathToInstance.size()); |
---|
| 1274 | if (pathsMatch(potentialEqualSubPath, pathToInstance)) { |
---|
| 1275 | taskBuilder.discardTaskInstance(instance); |
---|
| 1276 | discarded = true; |
---|
| 1277 | break; |
---|
| 1278 | } |
---|
| 1279 | } |
---|
| 1280 | } |
---|
| 1281 | } |
---|
| 1282 | |
---|
| 1283 | if (discarded) { |
---|
| 1284 | // now also discard the children |
---|
| 1285 | if (instance instanceof ISequenceInstance) { |
---|
| 1286 | int index = 0; |
---|
| 1287 | for (ITaskInstance childInstance : (ITaskInstanceList) instance) { |
---|
| 1288 | pathToInstance.add(childInstance.getTask(), index++); |
---|
| 1289 | discardTaskInstancesNotBelongingToTraversals |
---|
| 1290 | (childInstance, pathToInstance, similarTasks); |
---|
| 1291 | pathToInstance.removeLast(); |
---|
| 1292 | } |
---|
| 1293 | } |
---|
| 1294 | else if (instance instanceof IIterationInstance) { |
---|
| 1295 | for (ITaskInstance childInstance : (ITaskInstanceList) instance) { |
---|
| 1296 | pathToInstance.add(childInstance.getTask(), 0); |
---|
| 1297 | discardTaskInstancesNotBelongingToTraversals |
---|
| 1298 | (childInstance, pathToInstance, similarTasks); |
---|
| 1299 | pathToInstance.removeLast(); |
---|
| 1300 | } |
---|
| 1301 | } |
---|
| 1302 | else if (instance instanceof IOptionalInstance) { |
---|
| 1303 | ITaskInstance childInstance = ((IOptionalInstance) instance).getChild(); |
---|
| 1304 | if (childInstance != null) { |
---|
| 1305 | pathToInstance.add(childInstance.getTask(), 0); |
---|
| 1306 | discardTaskInstancesNotBelongingToTraversals |
---|
| 1307 | (childInstance, pathToInstance, similarTasks); |
---|
| 1308 | pathToInstance.removeLast(); |
---|
| 1309 | } |
---|
| 1310 | } |
---|
| 1311 | else if (instance instanceof ISelectionInstance) { |
---|
| 1312 | ITaskInstance childInstance = ((ISelectionInstance) instance).getChild(); |
---|
| 1313 | pathToInstance.add(childInstance.getTask(), 0); |
---|
| 1314 | discardTaskInstancesNotBelongingToTraversals |
---|
| 1315 | (childInstance, pathToInstance, similarTasks); |
---|
| 1316 | pathToInstance.removeLast(); |
---|
| 1317 | } |
---|
| 1318 | } |
---|
| 1319 | } |
---|
| 1320 | |
---|
| 1321 | /** |
---|
| 1322 | * |
---|
| 1323 | */ |
---|
| 1324 | private void mergeSubsequentIdenticalMarkingTemporalRelationships(ITaskInstanceList list) { |
---|
| 1325 | int index = 0; |
---|
[1854] | 1326 | TaskComparator comparator = identTaskHandlStrat.getTaskComparator(); |
---|
[1767] | 1327 | |
---|
| 1328 | while (index < (list.size() - 1)) { |
---|
| 1329 | ITaskInstance instance1 = list.get(index); |
---|
| 1330 | ITaskInstance instance2 = list.get(index + 1); |
---|
| 1331 | |
---|
| 1332 | if (comparator.equals(instance1.getTask(), instance2.getTask())) { |
---|
| 1333 | if (instance1 instanceof IIterationInstance) { |
---|
| 1334 | // add the children of the second to the first iteration instance and discard |
---|
| 1335 | // the second |
---|
| 1336 | for (ITaskInstance child : (IIterationInstance) instance2) { |
---|
| 1337 | taskBuilder.addChild((IIterationInstance) instance1, child); |
---|
| 1338 | } |
---|
| 1339 | |
---|
| 1340 | taskBuilder.removeTaskInstance(list, index + 1); |
---|
| 1341 | taskBuilder.discardTaskInstance(instance2); |
---|
| 1342 | } |
---|
| 1343 | else if (instance1 instanceof IOptionalInstance) { |
---|
| 1344 | ITaskInstance optionalChildInstance1 = |
---|
| 1345 | ((IOptionalInstance) instance1).getChild(); |
---|
| 1346 | ITaskInstance optionalChildInstance2 = |
---|
| 1347 | ((IOptionalInstance) instance2).getChild(); |
---|
| 1348 | |
---|
| 1349 | if (optionalChildInstance1 == null) { |
---|
| 1350 | // independent of the second, just remove the first. The second will be the |
---|
| 1351 | // unique representation |
---|
| 1352 | taskBuilder.removeTaskInstance(list, index); |
---|
| 1353 | } |
---|
| 1354 | else if (optionalChildInstance2 == null) { |
---|
| 1355 | // remove the second. The first will be the unique representation |
---|
| 1356 | taskBuilder.removeTaskInstance(list, index + 1); |
---|
| 1357 | } |
---|
| 1358 | else if (optionalChildInstance1 instanceof IIterationInstance) { |
---|
| 1359 | // add all children of the second optional iteration instance to the |
---|
| 1360 | // first and discard the second |
---|
| 1361 | for (ITaskInstance child : (IIterationInstance) optionalChildInstance2) { |
---|
| 1362 | taskBuilder.addChild |
---|
| 1363 | ((IIterationInstance) optionalChildInstance1, child); |
---|
| 1364 | } |
---|
| 1365 | |
---|
| 1366 | taskBuilder.removeTaskInstance(list, index + 1); |
---|
| 1367 | taskBuilder.discardTaskInstance(instance2); |
---|
| 1368 | } |
---|
| 1369 | else { |
---|
| 1370 | // both optional children are no iterations --> create an iteration |
---|
| 1371 | // for them and add them both as children. |
---|
| 1372 | throw new java.lang.UnsupportedOperationException("not implemented yet"); |
---|
| 1373 | } |
---|
| 1374 | } |
---|
| 1375 | else { |
---|
| 1376 | index++; |
---|
| 1377 | } |
---|
| 1378 | } |
---|
| 1379 | else { |
---|
| 1380 | index++; |
---|
| 1381 | } |
---|
| 1382 | } |
---|
| 1383 | |
---|
| 1384 | for (ITaskInstance child : list) { |
---|
| 1385 | if (child instanceof ITaskInstanceList) { |
---|
| 1386 | mergeSubsequentIdenticalMarkingTemporalRelationships((ITaskInstanceList) child); |
---|
| 1387 | } |
---|
| 1388 | } |
---|
| 1389 | } |
---|
| 1390 | |
---|
| 1391 | /** |
---|
| 1392 | * |
---|
| 1393 | */ |
---|
| 1394 | private static boolean pathsMatch(TaskPath path1, TaskPath path2) { |
---|
| 1395 | if (path1 == null) { |
---|
| 1396 | return path2 == null; |
---|
| 1397 | } |
---|
| 1398 | else if ((path2 != null) && (path1.size() == path2.size())) { |
---|
| 1399 | for (int i = 0; i < path1.size(); i++) { |
---|
| 1400 | if (!path1.get(i).equals(path2.get(i))) { |
---|
| 1401 | return false; |
---|
| 1402 | } |
---|
| 1403 | } |
---|
| 1404 | return true; |
---|
| 1405 | } |
---|
| 1406 | else { |
---|
| 1407 | return false; |
---|
| 1408 | } |
---|
| 1409 | } |
---|
| 1410 | |
---|
| 1411 | /** |
---|
| 1412 | * |
---|
| 1413 | */ |
---|
| 1414 | /*private boolean containsNewTask(ITask task, RuleApplicationData appData) { |
---|
| 1415 | if (appData.isSelfCreatedTask(task)) { |
---|
| 1416 | return true; |
---|
| 1417 | } |
---|
| 1418 | else if (task instanceof IStructuringTemporalRelationship) { |
---|
| 1419 | for (ITask child : ((IStructuringTemporalRelationship) task).getChildren()) { |
---|
| 1420 | if (containsNewTask(child, appData)) { |
---|
| 1421 | return true; |
---|
| 1422 | } |
---|
| 1423 | } |
---|
| 1424 | } |
---|
| 1425 | else if (task instanceof IMarkingTemporalRelationship) { |
---|
| 1426 | return containsNewTask(((IMarkingTemporalRelationship) task).getMarkedTask(), appData); |
---|
| 1427 | } |
---|
| 1428 | |
---|
| 1429 | return false; |
---|
| 1430 | }*/ |
---|
| 1431 | |
---|
| 1432 | /** |
---|
| 1433 | * |
---|
| 1434 | */ |
---|
| 1435 | private class RuleApplicationData { |
---|
| 1436 | |
---|
| 1437 | /** |
---|
| 1438 | * |
---|
| 1439 | */ |
---|
| 1440 | private List<IUserSession> sessions; |
---|
| 1441 | |
---|
| 1442 | /** |
---|
| 1443 | * |
---|
| 1444 | */ |
---|
| 1445 | private ITaskModel taskModel; |
---|
| 1446 | |
---|
| 1447 | /** |
---|
| 1448 | * |
---|
| 1449 | */ |
---|
| 1450 | private MostSimilarTaskDeterminer mostSimilarTasksDeterminer = |
---|
| 1451 | new MostSimilarTaskDeterminer(identTaskHandlStrat.getTaskComparator()); |
---|
| 1452 | |
---|
| 1453 | /** |
---|
| 1454 | * |
---|
| 1455 | */ |
---|
| 1456 | private List<SimilarTasks> mostSimilarTasks; |
---|
| 1457 | |
---|
| 1458 | /** |
---|
| 1459 | * |
---|
| 1460 | */ |
---|
| 1461 | private List<ITask> newTasks = new LinkedList<ITask>(); |
---|
| 1462 | |
---|
| 1463 | /** |
---|
| 1464 | * |
---|
| 1465 | */ |
---|
| 1466 | private RuleApplicationResult ruleApplicationResult = new RuleApplicationResult(); |
---|
| 1467 | |
---|
| 1468 | /** |
---|
| 1469 | * |
---|
| 1470 | */ |
---|
[1854] | 1471 | private RuleApplicationData(List<IUserSession> sessions) { |
---|
[1767] | 1472 | this.sessions = sessions; |
---|
| 1473 | } |
---|
| 1474 | |
---|
| 1475 | /** |
---|
| 1476 | * |
---|
| 1477 | */ |
---|
| 1478 | boolean isSelfCreatedTask(ITask task) { |
---|
| 1479 | for (ITask candidate : newTasks) { |
---|
| 1480 | if (candidate == task) { |
---|
| 1481 | return true; |
---|
| 1482 | } |
---|
| 1483 | } |
---|
| 1484 | |
---|
| 1485 | return false; |
---|
| 1486 | } |
---|
| 1487 | |
---|
| 1488 | /** |
---|
| 1489 | * @return the mostSimilarTasksDeterminer |
---|
| 1490 | */ |
---|
[1854] | 1491 | private MostSimilarTaskDeterminer getMostSimilarTasksDeterminer() { |
---|
[1767] | 1492 | return mostSimilarTasksDeterminer; |
---|
| 1493 | } |
---|
| 1494 | |
---|
| 1495 | /** |
---|
| 1496 | * |
---|
| 1497 | */ |
---|
[1854] | 1498 | private void markAsAlreadyCondensed(ITask task1, ITask task2) { |
---|
[1767] | 1499 | mostSimilarTasksDeterminer.addComparisonToSkip(task1, task2); |
---|
| 1500 | } |
---|
| 1501 | |
---|
| 1502 | /** |
---|
| 1503 | * |
---|
| 1504 | */ |
---|
| 1505 | private RuleApplicationResult finalizeRuleApplicationResult() { |
---|
| 1506 | for (ITask newTask : newTasks) { |
---|
| 1507 | ruleApplicationResult.addNewlyCreatedTask(newTask); |
---|
| 1508 | |
---|
| 1509 | if (newTask instanceof IOptional) { |
---|
| 1510 | if (isSelfCreatedTask(((IOptional) newTask).getMarkedTask()) && |
---|
| 1511 | (((IOptional) newTask).getMarkedTask() instanceof ISequence)) |
---|
| 1512 | { |
---|
| 1513 | ruleApplicationResult.addNewlyCreatedTask |
---|
| 1514 | (((IOptional) newTask).getMarkedTask()); |
---|
| 1515 | } |
---|
| 1516 | } |
---|
| 1517 | else if (newTask instanceof ISelection) { |
---|
| 1518 | for (ITask child : ((ISelection) newTask).getChildren()) { |
---|
| 1519 | if (isSelfCreatedTask(child) && (child instanceof ISequence)) { |
---|
| 1520 | ruleApplicationResult.addNewlyCreatedTask(child); |
---|
| 1521 | } |
---|
| 1522 | } |
---|
| 1523 | } |
---|
| 1524 | } |
---|
| 1525 | |
---|
| 1526 | |
---|
| 1527 | return ruleApplicationResult; |
---|
| 1528 | } |
---|
| 1529 | |
---|
| 1530 | /** |
---|
| 1531 | * @return the tree |
---|
| 1532 | */ |
---|
| 1533 | private List<IUserSession> getSessions() { |
---|
| 1534 | return sessions; |
---|
| 1535 | } |
---|
| 1536 | |
---|
| 1537 | /** |
---|
| 1538 | * @return the taskModel |
---|
| 1539 | */ |
---|
| 1540 | private ITaskModel getTaskModel() { |
---|
| 1541 | return taskModel; |
---|
| 1542 | } |
---|
| 1543 | |
---|
| 1544 | /** |
---|
| 1545 | * @param taskModel the taskModel to set |
---|
| 1546 | */ |
---|
| 1547 | private void setTaskModel(ITaskModel taskModel) { |
---|
| 1548 | this.taskModel = taskModel; |
---|
| 1549 | } |
---|
| 1550 | |
---|
| 1551 | /** |
---|
| 1552 | * @return the orderedDiffLevels |
---|
| 1553 | */ |
---|
| 1554 | private List<SimilarTasks> getMostSimilarTasks() { |
---|
| 1555 | return mostSimilarTasks; |
---|
| 1556 | } |
---|
| 1557 | |
---|
| 1558 | /** |
---|
| 1559 | * @param orderedDiffLevels the orderedDiffLevels to set |
---|
| 1560 | */ |
---|
| 1561 | private void setMostSimilarTasks(List<SimilarTasks> mostSimilarTasks) { |
---|
| 1562 | this.mostSimilarTasks = mostSimilarTasks; |
---|
| 1563 | } |
---|
| 1564 | |
---|
| 1565 | /** |
---|
| 1566 | * |
---|
| 1567 | */ |
---|
| 1568 | private ITask ensureUnique(ITask task) { |
---|
| 1569 | // replacements done in this rule are either optionals or selections. So focus on them |
---|
| 1570 | if (task instanceof IOptional) { |
---|
| 1571 | for (ITask newTask : newTasks) { |
---|
| 1572 | if (newTask instanceof IOptional) { |
---|
| 1573 | ITask child1 = ((IOptional) task).getMarkedTask(); |
---|
| 1574 | ITask child2 = ((IOptional) newTask).getMarkedTask(); |
---|
| 1575 | if (createdChildEquals(child1, child2)) { |
---|
[1854] | 1576 | // System.out.println("reusing optional " + newTask + " for " + task); |
---|
[1767] | 1577 | return newTask; |
---|
| 1578 | } |
---|
| 1579 | } |
---|
| 1580 | } |
---|
| 1581 | } |
---|
| 1582 | else if (task instanceof ISelection) { |
---|
| 1583 | for (ITask newTask : newTasks) { |
---|
| 1584 | if (newTask instanceof ISelection) { |
---|
| 1585 | List<ITask> children1 = ((ISelection) task).getChildren(); |
---|
| 1586 | List<ITask> children2 = ((ISelection) newTask).getChildren(); |
---|
| 1587 | if (createdSelectionChildrenEqual(children1, children2)) { |
---|
[1854] | 1588 | /*System.out.println("reusing selection " + newTask + " for " + task); |
---|
[1767] | 1589 | |
---|
[1854] | 1590 | System.out.println("---------------------------- existing task"); |
---|
[1767] | 1591 | new TaskTreeEncoder().encode(newTask, System.out); |
---|
| 1592 | |
---|
| 1593 | System.out.println("---------------------------- completely new task"); |
---|
| 1594 | new TaskTreeEncoder().encode(task, System.out);*/ |
---|
| 1595 | |
---|
| 1596 | return newTask; |
---|
| 1597 | } |
---|
| 1598 | } |
---|
| 1599 | } |
---|
| 1600 | } |
---|
| 1601 | else if (task instanceof ISequence) { |
---|
| 1602 | List<ISequence> allRelevant = new ArrayList<>(); |
---|
| 1603 | |
---|
| 1604 | for (ITask candidate : newTasks) { |
---|
| 1605 | if (candidate instanceof ISequence) { |
---|
| 1606 | allRelevant.add((ISequence) candidate); |
---|
| 1607 | } |
---|
| 1608 | } |
---|
| 1609 | |
---|
| 1610 | for (ITask candidate : taskModel.getTasks()) { |
---|
| 1611 | if (candidate instanceof ISequence) { |
---|
| 1612 | allRelevant.add((ISequence) candidate); |
---|
| 1613 | } |
---|
| 1614 | } |
---|
| 1615 | |
---|
| 1616 | for (ISequence candidate : allRelevant) { |
---|
| 1617 | List<ITask> children1 = ((ISequence) task).getChildren(); |
---|
| 1618 | List<ITask> children2 = ((ISequence) candidate).getChildren(); |
---|
| 1619 | |
---|
| 1620 | boolean equal = false; |
---|
| 1621 | if (children1.size() == children2.size()) { |
---|
| 1622 | equal = true; |
---|
| 1623 | for (int i = 0; i < children1.size(); i++) { |
---|
| 1624 | if (children1.get(i) != children2.get(i)) { |
---|
| 1625 | equal = false; |
---|
| 1626 | break; |
---|
| 1627 | } |
---|
| 1628 | } |
---|
| 1629 | } |
---|
| 1630 | |
---|
| 1631 | if (equal) { |
---|
[1854] | 1632 | // System.out.println("reusing sequence " + candidate + " for " + task); |
---|
[1767] | 1633 | return candidate; |
---|
| 1634 | } |
---|
| 1635 | } |
---|
| 1636 | } |
---|
| 1637 | |
---|
| 1638 | newTasks.add(task); |
---|
| 1639 | |
---|
| 1640 | return task; |
---|
| 1641 | } |
---|
| 1642 | |
---|
| 1643 | /** |
---|
| 1644 | * |
---|
| 1645 | */ |
---|
| 1646 | private boolean createdSelectionChildrenEqual(List<ITask> children1, List<ITask> children2) { |
---|
| 1647 | if (children1.size() != children2.size()) { |
---|
| 1648 | return false; |
---|
| 1649 | } |
---|
| 1650 | |
---|
| 1651 | for (ITask child1 : children1) { |
---|
| 1652 | boolean found = false; |
---|
| 1653 | |
---|
| 1654 | for (ITask child2 : children2) { |
---|
| 1655 | if (createdChildEquals(child1, child2)) { |
---|
| 1656 | found = true; |
---|
| 1657 | break; |
---|
| 1658 | } |
---|
| 1659 | } |
---|
| 1660 | |
---|
| 1661 | if (!found) { |
---|
| 1662 | return false; |
---|
| 1663 | } |
---|
| 1664 | } |
---|
| 1665 | |
---|
| 1666 | return true; |
---|
| 1667 | } |
---|
| 1668 | |
---|
| 1669 | /** |
---|
| 1670 | * |
---|
| 1671 | */ |
---|
| 1672 | private boolean createdChildEquals(ITask child1, ITask child2) { |
---|
| 1673 | if (child1 == child2) { |
---|
| 1674 | return true; |
---|
| 1675 | } |
---|
| 1676 | else if (!isSelfCreatedTask(child1) && !isSelfCreatedTask(child2)) { |
---|
| 1677 | // the simple comparison can not work if the tasks are not self created |
---|
| 1678 | return false; |
---|
| 1679 | } |
---|
| 1680 | else if ((child1 instanceof ISequence) && (child2 instanceof ISequence)) { |
---|
| 1681 | ISequence sequence1 = (ISequence) child1; |
---|
| 1682 | ISequence sequence2 = (ISequence) child2; |
---|
| 1683 | |
---|
| 1684 | if (sequence1.getChildren().size() != sequence2.getChildren().size()) { |
---|
| 1685 | return false; |
---|
| 1686 | } |
---|
| 1687 | |
---|
| 1688 | for (int i = 0; i < sequence1.getChildren().size(); i++) { |
---|
| 1689 | if (sequence1.getChildren().get(i) != sequence2.getChildren().get(i)) { |
---|
| 1690 | return false; |
---|
| 1691 | } |
---|
| 1692 | } |
---|
| 1693 | |
---|
| 1694 | return true; |
---|
| 1695 | } |
---|
| 1696 | else { |
---|
| 1697 | return false; |
---|
| 1698 | } |
---|
| 1699 | } |
---|
| 1700 | } |
---|
| 1701 | |
---|
| 1702 | /** |
---|
| 1703 | * |
---|
| 1704 | */ |
---|
| 1705 | private static class FlattenInstruction { |
---|
| 1706 | |
---|
| 1707 | /** |
---|
| 1708 | * |
---|
| 1709 | */ |
---|
| 1710 | private enum Instruction { DONT_TRAVERSE, MAKE_OPTIONAL, MAKE_SELECTION, INTEGRATE_OPTIONAL }; |
---|
| 1711 | |
---|
| 1712 | /** */ |
---|
| 1713 | private TaskPath path; |
---|
| 1714 | |
---|
| 1715 | /** */ |
---|
| 1716 | private TaskPath precedingPath; |
---|
| 1717 | |
---|
| 1718 | /** */ |
---|
| 1719 | private Instruction instruction; |
---|
| 1720 | |
---|
| 1721 | /** */ |
---|
| 1722 | private IOptional optional = null; |
---|
| 1723 | |
---|
| 1724 | /** */ |
---|
| 1725 | private ISelection selection = null; |
---|
| 1726 | |
---|
| 1727 | /** */ |
---|
| 1728 | private ITask selectedChild = null; |
---|
| 1729 | |
---|
| 1730 | /** |
---|
| 1731 | * |
---|
| 1732 | */ |
---|
| 1733 | private FlattenInstruction(TaskPath path) { |
---|
| 1734 | this.path = path; |
---|
| 1735 | this.instruction = Instruction.DONT_TRAVERSE; |
---|
| 1736 | } |
---|
| 1737 | |
---|
| 1738 | /** |
---|
| 1739 | * |
---|
| 1740 | */ |
---|
| 1741 | private FlattenInstruction(TaskPath path, IOptional optional) { |
---|
| 1742 | this.path = path; |
---|
| 1743 | this.instruction = Instruction.MAKE_OPTIONAL; |
---|
| 1744 | this.optional = optional; |
---|
| 1745 | } |
---|
| 1746 | |
---|
| 1747 | /** |
---|
| 1748 | * |
---|
| 1749 | */ |
---|
| 1750 | private FlattenInstruction(TaskPath path, ISelection selection, ITask selectedChild) { |
---|
| 1751 | this.path = path; |
---|
| 1752 | this.instruction = Instruction.MAKE_SELECTION; |
---|
| 1753 | this.selection = selection; |
---|
| 1754 | this.selectedChild = selectedChild; |
---|
| 1755 | } |
---|
| 1756 | |
---|
| 1757 | /** |
---|
| 1758 | * |
---|
| 1759 | */ |
---|
| 1760 | private FlattenInstruction(TaskPath precedingPath, |
---|
| 1761 | TaskPath path, |
---|
| 1762 | IOptional optional) |
---|
| 1763 | { |
---|
| 1764 | this.path = path; |
---|
| 1765 | this.precedingPath = precedingPath; |
---|
| 1766 | this.instruction = Instruction.INTEGRATE_OPTIONAL; |
---|
| 1767 | this.optional = optional; |
---|
| 1768 | } |
---|
| 1769 | |
---|
| 1770 | /** |
---|
| 1771 | * |
---|
| 1772 | */ |
---|
| 1773 | IOptional getOptional() { |
---|
| 1774 | return optional; |
---|
| 1775 | } |
---|
| 1776 | |
---|
| 1777 | |
---|
| 1778 | /** |
---|
| 1779 | * @return the selection |
---|
| 1780 | */ |
---|
| 1781 | ISelection getSelection() { |
---|
| 1782 | return selection; |
---|
| 1783 | } |
---|
| 1784 | |
---|
| 1785 | /** |
---|
| 1786 | * @return the selectedChild |
---|
| 1787 | */ |
---|
| 1788 | ITask getSelectedChild() { |
---|
| 1789 | return selectedChild; |
---|
| 1790 | } |
---|
| 1791 | |
---|
| 1792 | /** |
---|
| 1793 | * @return the instruction |
---|
| 1794 | */ |
---|
| 1795 | Instruction getInstruction() { |
---|
| 1796 | return instruction; |
---|
| 1797 | } |
---|
| 1798 | |
---|
| 1799 | /** |
---|
| 1800 | * @return the precedingPath |
---|
| 1801 | */ |
---|
| 1802 | TaskPath getPrecedingPath() { |
---|
| 1803 | return precedingPath; |
---|
| 1804 | } |
---|
| 1805 | |
---|
| 1806 | /** |
---|
| 1807 | * |
---|
| 1808 | */ |
---|
| 1809 | boolean matches(TaskPath path) { |
---|
| 1810 | return pathsMatch(this.path, path); |
---|
| 1811 | } |
---|
| 1812 | |
---|
| 1813 | |
---|
[1854] | 1814 | // /** |
---|
| 1815 | // * |
---|
| 1816 | // */ |
---|
| 1817 | // void dump(PrintStream out) { |
---|
| 1818 | // for (int i = 0; i < path.size(); i++) { |
---|
| 1819 | // out.print("-->"); |
---|
| 1820 | // out.print(path.getTask(i).getId()); |
---|
| 1821 | // out.print('('); |
---|
| 1822 | // out.print(path.get(i).getIndex()); |
---|
| 1823 | // out.print(')'); |
---|
| 1824 | // } |
---|
| 1825 | // |
---|
| 1826 | // out.print(" "); |
---|
| 1827 | // out.print(instruction); |
---|
| 1828 | // |
---|
| 1829 | // out.println(); |
---|
| 1830 | // } |
---|
[1767] | 1831 | |
---|
| 1832 | } |
---|
| 1833 | |
---|
| 1834 | } |
---|