[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.treeifc; |
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| 16 | |
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[1847] | 17 | import java.util.ArrayList; |
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| 18 | import java.util.List; |
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[1767] | 19 | |
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| 20 | /** |
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| 21 | * <p> |
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| 22 | * TODO comment |
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| 23 | * </p> |
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| 24 | * |
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| 25 | * @author Patrick Harms |
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| 26 | */ |
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| 27 | public class TaskPath { |
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| 28 | |
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| 29 | /** */ |
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[1847] | 30 | private List<Entry> taskList; |
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[1767] | 31 | |
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| 32 | /** |
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| 33 | * |
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| 34 | * |
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| 35 | */ |
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| 36 | public TaskPath() { |
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| 37 | super(); |
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[1847] | 38 | taskList = new ArrayList<Entry>(); |
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[1767] | 39 | } |
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| 40 | |
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| 41 | /** |
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| 42 | * |
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| 43 | */ |
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| 44 | public TaskPath(TaskPath path) { |
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| 45 | this(); |
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| 46 | taskList.addAll(path.taskList); |
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| 47 | } |
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| 48 | |
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| 49 | /** |
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| 50 | * |
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| 51 | */ |
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| 52 | public TaskPath subPath(int fromIndex, int toIndex) { |
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| 53 | TaskPath result = new TaskPath(); |
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| 54 | result.taskList.addAll(taskList.subList(fromIndex, toIndex)); |
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| 55 | return result; |
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| 56 | } |
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| 57 | |
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| 58 | /** |
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| 59 | * |
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| 60 | */ |
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| 61 | public ITask removeLast() { |
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[1847] | 62 | Entry last = taskList.remove(taskList.size() - 1); |
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[1767] | 63 | if (last != null) { |
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| 64 | return last.getTask(); |
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| 65 | } |
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| 66 | else { |
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| 67 | return null; |
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| 68 | } |
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| 69 | } |
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| 70 | |
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| 71 | /** |
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| 72 | * |
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| 73 | */ |
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| 74 | public ITask getLast() { |
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[1847] | 75 | Entry last = taskList.get(taskList.size() - 1); |
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[1767] | 76 | if (last != null) { |
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| 77 | return last.getTask(); |
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| 78 | } |
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| 79 | else { |
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| 80 | return null; |
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| 81 | } |
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| 82 | } |
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| 83 | |
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| 84 | /* (non-Javadoc) |
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| 85 | * @see java.lang.Object#toString() |
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| 86 | */ |
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| 87 | @Override |
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| 88 | public String toString() { |
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| 89 | return taskList.toString(); |
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| 90 | } |
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| 91 | |
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| 92 | /** |
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| 93 | * |
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| 94 | */ |
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| 95 | public int size() { |
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| 96 | return taskList.size(); |
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| 97 | } |
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| 98 | |
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| 99 | /** |
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| 100 | * |
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| 101 | */ |
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| 102 | public boolean isEmpty() { |
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| 103 | return taskList.isEmpty(); |
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| 104 | } |
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| 105 | |
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| 106 | /** |
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| 107 | * |
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| 108 | */ |
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| 109 | public void add(ITask task, int index) { |
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| 110 | taskList.add(new Entry(task, index)); |
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| 111 | } |
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| 112 | |
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| 113 | /** |
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| 114 | * |
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| 115 | */ |
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| 116 | public ITask getTask(int index) { |
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| 117 | Entry last = taskList.get(index); |
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| 118 | if (last != null) { |
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| 119 | return last.getTask(); |
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| 120 | } |
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| 121 | else { |
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| 122 | return null; |
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| 123 | } |
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| 124 | } |
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| 125 | |
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| 126 | /** |
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| 127 | * |
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| 128 | */ |
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| 129 | public Entry get(int index) { |
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| 130 | return taskList.get(index); |
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| 131 | } |
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| 132 | |
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| 133 | |
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| 134 | /* (non-Javadoc) |
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| 135 | * @see java.lang.Object#hashCode() |
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| 136 | */ |
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| 137 | @Override |
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| 138 | public int hashCode() { |
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| 139 | ITask last = getLast(); |
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| 140 | if (last != null) { |
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| 141 | return last.hashCode(); |
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| 142 | } |
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| 143 | else { |
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| 144 | return 0; |
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| 145 | } |
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| 146 | } |
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| 147 | |
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| 148 | /* (non-Javadoc) |
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| 149 | * @see java.lang.Object#equals(java.lang.Object) |
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| 150 | */ |
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| 151 | @Override |
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| 152 | public boolean equals(Object obj) { |
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| 153 | if (this == obj) { |
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| 154 | return true; |
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| 155 | } |
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| 156 | else if (obj instanceof TaskPath) { |
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| 157 | TaskPath other = (TaskPath) obj; |
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| 158 | if ((other != null) && (this.size() == other.size())) { |
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| 159 | for (int i = 0; i < this.size(); i++) { |
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| 160 | if (!this.get(i).equals(other.get(i))) { |
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| 161 | return false; |
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| 162 | } |
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| 163 | } |
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| 164 | return true; |
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| 165 | } |
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| 166 | } |
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| 167 | |
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| 168 | return false; |
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| 169 | } |
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| 170 | |
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| 171 | |
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| 172 | /** |
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| 173 | * |
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| 174 | */ |
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| 175 | public static class Entry { |
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| 176 | |
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| 177 | /** */ |
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| 178 | private ITask task; |
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| 179 | |
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| 180 | /** */ |
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| 181 | private int index; |
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| 182 | |
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| 183 | /** |
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| 184 | * |
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| 185 | */ |
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| 186 | private Entry(ITask task, int index) { |
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| 187 | this.task = task; |
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| 188 | this.index = index; |
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| 189 | } |
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| 190 | |
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| 191 | /* (non-Javadoc) |
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| 192 | * @see java.lang.Object#toString() |
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| 193 | */ |
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| 194 | @Override |
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| 195 | public String toString() { |
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| 196 | return "(" + task + "," + index + ")"; |
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| 197 | } |
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| 198 | |
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| 199 | /** |
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| 200 | * @return the task |
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| 201 | */ |
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| 202 | public ITask getTask() { |
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| 203 | return task; |
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| 204 | } |
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| 205 | |
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| 206 | /** |
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| 207 | * @return the index |
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| 208 | */ |
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| 209 | public int getIndex() { |
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| 210 | return index; |
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| 211 | } |
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| 212 | |
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| 213 | /* (non-Javadoc) |
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| 214 | * @see java.lang.Object#hashCode() |
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| 215 | */ |
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| 216 | @Override |
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| 217 | public int hashCode() { |
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| 218 | return task.hashCode(); |
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| 219 | } |
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| 220 | |
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| 221 | /* (non-Javadoc) |
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| 222 | * @see java.lang.Object#equals(java.lang.Object) |
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| 223 | */ |
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| 224 | @Override |
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| 225 | public boolean equals(Object obj) { |
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| 226 | if (this == obj) { |
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| 227 | return true; |
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| 228 | } |
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| 229 | else if (obj instanceof TaskPath.Entry) { |
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| 230 | return (this.getIndex() == ((TaskPath.Entry) obj).getIndex()) && |
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| 231 | (this.getTask().equals(((TaskPath.Entry) obj).getTask())); |
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| 232 | } |
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| 233 | |
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| 234 | return false; |
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| 235 | } |
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| 236 | |
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| 237 | |
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| 238 | } |
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| 239 | |
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| 240 | } |
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