[1113] | 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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[922] | 15 | package de.ugoe.cs.autoquest.tasktrees.temporalrelation; |
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[439] | 16 | |
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| 17 | import java.util.ArrayList; |
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| 18 | import java.util.List; |
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[725] | 19 | import java.util.logging.Level; |
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[439] | 20 | |
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[987] | 21 | import de.ugoe.cs.autoquest.eventcore.guimodel.IDialog; |
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| 22 | import de.ugoe.cs.autoquest.eventcore.guimodel.IFrame; |
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| 23 | import de.ugoe.cs.autoquest.eventcore.guimodel.IGUIElement; |
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[1146] | 24 | import de.ugoe.cs.autoquest.tasktrees.taskequality.TaskEquality; |
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| 25 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskBuilder; |
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| 26 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskFactory; |
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| 27 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskInstance; |
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| 28 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskInstanceList; |
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| 29 | import de.ugoe.cs.autoquest.tasktrees.treeifc.IUserSession; |
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[725] | 30 | import de.ugoe.cs.util.console.Console; |
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[439] | 31 | |
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| 32 | /** |
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[1146] | 33 | * TODO update comment |
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| 34 | * |
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[809] | 35 | * <p> |
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| 36 | * This class is responsible for applying temporal relationship rules on a task tree. Through this, |
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| 37 | * a flat task tree is restructured to have more depth but to include more temporal relationships |
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[1146] | 38 | * between tasks which are not only a major sequence. I.e. through the application of the |
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| 39 | * rules iterations and selections of tasks are detected. Which kind of temporal relations |
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| 40 | * between tasks are detected depends on the {@link ITaskInstanceListScopeRule}s known to |
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[809] | 41 | * this class. |
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| 42 | * </p> |
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[1146] | 43 | * <p>The class holds references to the appropriate {@link ITaskInstanceListScopeRule}s and calls |
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| 44 | * their {@link ITaskInstanceListScopeRule#apply(ITask, ITaskBuilder, ITaskFactory, boolean)} |
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| 45 | * method for each task in the task tree it is needed for. The general behavior of this class is |
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[809] | 46 | * the following: |
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| 47 | * <ol> |
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| 48 | * <li> |
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| 49 | * An instance of this class is created using the constructor and calling the |
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| 50 | * {@link #init()} method afterwards |
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| 51 | * </li> |
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| 52 | * <li> |
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[1146] | 53 | * then the {@link #applyRules(ITask, ITaskBuilder, ITaskFactory, boolean)} |
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| 54 | * method is called for a so far unstructured task |
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[809] | 55 | * </li> |
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| 56 | * <li> |
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| 57 | * the class iterates its internal list of rules and calls their |
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[1146] | 58 | * {@link ITaskInstanceListScopeRule#apply(ITask, ITaskBuilder, ITaskFactory, boolean)} |
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[809] | 59 | * method. |
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| 60 | * </li> |
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| 61 | * <li> |
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| 62 | * the class evaluates the rule application result |
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| 63 | * <ul> |
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| 64 | * <li> |
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| 65 | * if a rule returns a rule application result that is null, the next rule is tried |
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| 66 | * </li> |
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| 67 | * <li> |
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| 68 | * if a rule returns that it would be feasible if more data was available and the rule |
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| 69 | * application shall not be finalized (see finalize parameter of the applyRules method) |
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| 70 | * the rule application is broken up |
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| 71 | * </li> |
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| 72 | * <li> |
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| 73 | * if a rule returns, that it was applied, the same rule is applied again until it returns |
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[1146] | 74 | * null or feasible. For each newly created parent task provided in the rule application |
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| 75 | * result, the {@link #applyRules(ITask, ITaskBuilder, ITaskFactory, boolean)} |
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[809] | 76 | * method is called. |
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| 77 | * </li> |
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| 78 | * </ul> |
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| 79 | * </li> |
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| 80 | * </ol> |
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[1146] | 81 | * Through this, all rules are tried to be applied at least once to the provided parent task and |
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| 82 | * all parent tasks created during the rule application. |
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[809] | 83 | * </p> |
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[439] | 84 | * |
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[809] | 85 | * @author Patrick Harms |
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[439] | 86 | */ |
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[557] | 87 | public class TemporalRelationshipRuleManager { |
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| 88 | |
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[809] | 89 | /** |
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| 90 | * <p> |
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[1146] | 91 | * the task factory to be used during rule application |
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[809] | 92 | * </p> |
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| 93 | */ |
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[1146] | 94 | private ITaskFactory taskFactory; |
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[439] | 95 | |
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[557] | 96 | /** |
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[809] | 97 | * <p> |
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[1146] | 98 | * the task builder to be used during rule application |
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[809] | 99 | * </p> |
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[557] | 100 | */ |
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[1146] | 101 | private ITaskBuilder taskBuilder; |
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[1107] | 102 | |
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| 103 | /** |
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| 104 | * <p> |
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[1146] | 105 | * the temporal relationship rules known to the manager that are executed on whole sessions. |
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[1107] | 106 | * The rules are applied in the order they occur in this list. |
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| 107 | * </p> |
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| 108 | */ |
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[1146] | 109 | private ISessionScopeRule[] sessionScopeRules; |
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[1107] | 110 | |
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| 111 | /** |
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| 112 | * <p> |
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| 113 | * the temporal relationship rules known to the manager that are executed on whole sub trees. |
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| 114 | * The rules are applied in the order they occur in this list. |
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| 115 | * </p> |
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| 116 | */ |
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[1146] | 117 | private ITaskInstanceListScopeRule[] taskScopeRules; |
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[1107] | 118 | |
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| 119 | /** |
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| 120 | * <p> |
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| 121 | * initialize the manager |
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| 122 | * </p> |
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| 123 | * |
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[1146] | 124 | * @param taskFactory the task factory to be used for instantiating new task tree |
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| 125 | * tasks during rule application |
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| 126 | * @param taskBuilder the task builder to be used for linking tasks |
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[1107] | 127 | * with each other during rule application |
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| 128 | */ |
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[1189] | 129 | public TemporalRelationshipRuleManager(ITaskFactory taskFactory, ITaskBuilder taskBuilder) { |
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[557] | 130 | super(); |
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[1146] | 131 | this.taskFactory = taskFactory; |
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| 132 | this.taskBuilder = taskBuilder; |
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[557] | 133 | } |
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[439] | 134 | |
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[557] | 135 | /** |
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[809] | 136 | * <p> |
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| 137 | * initialized the temporal relationship rule manager by instantiating the known rules and |
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[1146] | 138 | * providing them with a reference to the task equality manager or other information they need. |
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[809] | 139 | * </p> |
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[557] | 140 | */ |
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| 141 | public void init() { |
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[987] | 142 | List<Class<? extends IGUIElement>> frameFilter = |
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| 143 | new ArrayList<Class<? extends IGUIElement>>(); |
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| 144 | frameFilter.add(IFrame.class); |
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| 145 | frameFilter.add(IDialog.class); |
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[1107] | 146 | //frameFilter.add(ICanvas.class); |
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[987] | 147 | |
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[1146] | 148 | sessionScopeRules = new ISessionScopeRule[] { |
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[1127] | 149 | new SequenceForTaskDetectionRule |
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[1189] | 150 | (TaskEquality.SEMANTICALLY_EQUAL, taskFactory, taskBuilder), |
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[1127] | 151 | /*new DefaultTaskSequenceDetectionRule |
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[1189] | 152 | (NodeEquality.SYNTACTICALLY_EQUAL, taskFactory, taskTreeBuilder), |
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[1107] | 153 | new DefaultTaskSequenceDetectionRule |
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[1189] | 154 | (NodeEquality.LEXICALLY_EQUAL, taskFactory, taskTreeBuilder),*/ |
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[1127] | 155 | /*new TreeScopeWrapperRule |
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| 156 | (new DefaultIterationDetectionRule |
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[1189] | 157 | (NodeEquality.LEXICALLY_EQUAL, taskFactory, taskTreeBuilder)), |
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[1127] | 158 | new TreeScopeWrapperRule |
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| 159 | (new DefaultIterationDetectionRule |
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[1189] | 160 | (NodeEquality.SYNTACTICALLY_EQUAL, taskFactory, taskTreeBuilder)), |
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[1127] | 161 | new TreeScopeWrapperRule |
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| 162 | (new DefaultIterationDetectionRule |
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[1189] | 163 | (NodeEquality.SEMANTICALLY_EQUAL, taskFactory, taskTreeBuilder))*/ |
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[1107] | 164 | }; |
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[805] | 165 | |
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[1107] | 166 | //treeScopeRules.add(new DefaultGuiElementSequenceDetectionRule(frameFilter)); |
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| 167 | |
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[1146] | 168 | taskScopeRules = new ITaskInstanceListScopeRule[] { |
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| 169 | //new SequenceOnGuiElementDetectionRule(taskFactory, taskTreeBuilder), |
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| 170 | //new EventSequenceOnSameTargetDetectionRule(taskFactory, taskTreeBuilder), |
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[1189] | 171 | //new TrackBarSelectionDetectionRule(taskFactory, taskBuilder), |
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[1146] | 172 | //new DefaultGuiEventSequenceDetectionRule(taskFactory, taskTreeBuilder), |
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[1107] | 173 | }; |
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| 174 | |
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[557] | 175 | } |
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[439] | 176 | |
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[557] | 177 | /** |
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[809] | 178 | * <p> |
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[1146] | 179 | * applies the known rules to the provided sessions. For the creation of further tasks, |
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| 180 | * the provided builder and task factory are utilized. The method expects, that no more data |
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[1107] | 181 | * is available and, therefore, finalizes the rule application. |
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| 182 | * </p> |
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| 183 | * |
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[1146] | 184 | * @param taskFactory the task factory to be used for instantiating new tasks. |
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[1107] | 185 | */ |
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[1146] | 186 | public void applyRules(List<IUserSession> sessions) { |
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| 187 | applyRules(sessionScopeRules, sessions, ""); |
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[1107] | 188 | } |
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| 189 | |
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| 190 | /** |
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| 191 | * <p> |
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[1146] | 192 | * applies the known rules to the provided parent task. For the creation of further tasks, |
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| 193 | * the provided builder and task factory are utilized. If the finalize parameter is true, the |
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[809] | 194 | * rule application is finalized as far as possible without waiting for further data. If it is |
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| 195 | * false, the rule application is broken up at the first rule returning, that its application |
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[1146] | 196 | * would be feasible. The method calls itself for each parent task created through the rule |
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| 197 | * application. In this case, the finalize parameter is always true. |
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[809] | 198 | * </p> |
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[557] | 199 | * |
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[1146] | 200 | * @param parent the parent task to apply the rules on |
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[809] | 201 | * @param finalize used to indicate, if the rule application shall break up if a rule would |
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| 202 | * be feasible if further data was available, or not. |
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[1146] | 203 | * @param logIndent simply used for logging purposes to indent the log messages depending |
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| 204 | * on the recursion depth of calling this method. |
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[557] | 205 | */ |
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[1146] | 206 | private int applyRules(ISessionScopeRule[] rules, |
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| 207 | List<IUserSession> sessions, |
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| 208 | String logIndent) |
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| 209 | { |
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| 210 | Console.traceln |
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| 211 | (Level.FINER, logIndent + "applying rules for " + sessions.size() + " sessions"); |
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| 212 | |
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| 213 | int noOfRuleApplications = 0; |
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| 214 | |
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| 215 | for (ISessionScopeRule rule : rules) { |
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| 216 | RuleApplicationResult result; |
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| 217 | do { |
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| 218 | Console.traceln(Level.FINER, logIndent + "trying rule " + rule); |
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| 219 | result = rule.apply(sessions); |
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| 220 | |
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| 221 | if ((result != null) && |
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| 222 | (result.getRuleApplicationStatus() == RuleApplicationStatus.FINISHED)) |
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| 223 | { |
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| 224 | Console.traceln(Level.FINE, logIndent + "applied rule " + rule); |
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| 225 | noOfRuleApplications++; |
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| 226 | |
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| 227 | //dumpTask(parent, ""); |
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| 228 | |
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| 229 | for (ITaskInstance newParent : result.getNewlyCreatedTaskInstances()) { |
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| 230 | noOfRuleApplications += |
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| 231 | applyRules(taskScopeRules, newParent, logIndent + " "); |
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| 232 | } |
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| 233 | } |
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| 234 | } |
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| 235 | while ((result != null) && |
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| 236 | (result.getRuleApplicationStatus() == RuleApplicationStatus.FINISHED)); |
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| 237 | |
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| 238 | } |
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| 239 | |
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| 240 | if (noOfRuleApplications <= 0) { |
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| 241 | Console.traceln(Level.FINE, logIndent + "no rules applied --> no temporal " + |
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| 242 | "relationship generated"); |
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| 243 | } |
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| 244 | |
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| 245 | return noOfRuleApplications; |
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[439] | 246 | } |
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[557] | 247 | |
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| 248 | /** |
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[809] | 249 | * <p> |
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[1146] | 250 | * applies the known rules to the provided parent task. For the creation of further tasks, |
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| 251 | * the provided builder and task factory are utilized. If the finalize parameter is true, the |
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[809] | 252 | * rule application is finalized as far as possible without waiting for further data. If it is |
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| 253 | * false, the rule application is broken up at the first rule returning, that its application |
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[1146] | 254 | * would be feasible. The method calls itself for each parent task created through the rule |
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[809] | 255 | * application. In this case, the finalize parameter is always true. |
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| 256 | * </p> |
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[557] | 257 | * |
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[1146] | 258 | * @param parent the parent task to apply the rules on |
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[809] | 259 | * @param finalize used to indicate, if the rule application shall break up if a rule would |
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| 260 | * be feasible if further data was available, or not. |
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[987] | 261 | * @param logIndent simply used for logging purposes to indent the log messages depending |
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[809] | 262 | * on the recursion depth of calling this method. |
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[557] | 263 | */ |
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[1146] | 264 | private int applyRules(ITaskInstanceListScopeRule[] rules, |
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| 265 | ITaskInstanceList taskInstances, |
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| 266 | String logIndent) |
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[439] | 267 | { |
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[1146] | 268 | Console.traceln(Level.FINER, logIndent + "applying rules for " + taskInstances.size() + |
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| 269 | " task instances"); |
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[557] | 270 | |
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| 271 | int noOfRuleApplications = 0; |
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| 272 | |
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[1146] | 273 | for (ITaskInstanceListScopeRule rule : rules) { |
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[557] | 274 | RuleApplicationResult result; |
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| 275 | do { |
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[1146] | 276 | Console.traceln |
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| 277 | (Level.FINER, logIndent + "trying rule " + rule + " on " + taskInstances); |
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| 278 | result = rule.apply(taskInstances); |
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[557] | 279 | |
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| 280 | if ((result != null) && |
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[1127] | 281 | (result.getRuleApplicationStatus() == RuleApplicationStatus.FINISHED)) |
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[557] | 282 | { |
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[725] | 283 | Console.traceln |
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[1146] | 284 | (Level.FINE, logIndent + "applied rule " + rule + " on " + taskInstances); |
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[557] | 285 | noOfRuleApplications++; |
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[987] | 286 | |
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[1127] | 287 | //dumpTask(parent, ""); |
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[557] | 288 | |
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[1146] | 289 | for (ITaskInstance newParent : result.getNewlyCreatedTaskInstances()) { |
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[557] | 290 | noOfRuleApplications += |
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[1146] | 291 | applyRules(taskScopeRules, newParent, logIndent + " "); |
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[557] | 292 | } |
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| 293 | } |
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| 294 | } |
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| 295 | while ((result != null) && |
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[1127] | 296 | (result.getRuleApplicationStatus() == RuleApplicationStatus.FINISHED)); |
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[557] | 297 | } |
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| 298 | |
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| 299 | if (noOfRuleApplications <= 0) { |
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[1127] | 300 | Console.traceln(Level.FINE, logIndent + "no rules applied --> no temporal " + |
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[725] | 301 | "relationship generated"); |
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[557] | 302 | } |
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| 303 | |
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| 304 | return noOfRuleApplications; |
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[439] | 305 | } |
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[557] | 306 | |
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| 307 | /** |
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[809] | 308 | * |
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| 309 | */ |
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[1146] | 310 | /*private void dumpTask(ITask task, String indent) { |
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[987] | 311 | StringBuffer message = new StringBuffer(); |
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| 312 | message.append(indent); |
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| 313 | message.append(task); |
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| 314 | if (task.getDescription() != null) { |
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| 315 | message.append('('); |
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| 316 | message.append(task.getDescription()); |
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| 317 | message.append(')'); |
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| 318 | } |
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| 319 | |
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| 320 | Console.traceln(Level.FINER, message.toString()); |
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| 321 | |
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| 322 | if ((task.getChildren() != null) && (task.getChildren().size() > 0)) { |
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[1146] | 323 | for (ITask child : task.getChildren()) { |
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[987] | 324 | dumpTask(child, indent + " "); |
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| 325 | } |
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| 326 | } |
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[1131] | 327 | }*/ |
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[439] | 328 | |
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| 329 | } |
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