1 | package de.ugoe.cs.quest.tasktrees.treeimpl;
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2 |
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3 | import java.util.ArrayList;
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4 | import java.util.List;
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5 |
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6 | import de.ugoe.cs.quest.tasktrees.treeifc.ITaskTreeNode;
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7 |
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8 | /**
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9 | * TODO comment
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10 | *
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11 | * @version $Revision: $ $Date: $
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12 | * @author 2011, last modified by $Author: $
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13 | */
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14 | public class TaskTreeNode implements ITaskTreeNode {
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15 | /** */
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16 | private static int temporalId = 0;
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17 |
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18 | /** */
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19 | private String name;
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20 |
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21 | /** */
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22 | private String description;
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23 |
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24 | /** */
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25 | private int id;
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26 |
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27 | /** children */
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28 | private List<ITaskTreeNode> children;
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29 |
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30 | /**
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31 | *
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32 | */
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33 | public TaskTreeNode(String name) {
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34 | this.name = name;
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35 | id = getNewId();
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36 | }
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37 |
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38 | /**
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39 | * TODO: comment
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40 | *
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41 | * @return
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42 | */
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43 | private static synchronized int getNewId() {
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44 | if (temporalId == Integer.MAX_VALUE) {
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45 | temporalId = 0;
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46 | }
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47 |
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48 | return temporalId++;
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49 | }
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50 |
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51 | /**
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52 | * @return Returns the name.
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53 | */
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54 | public String getName() {
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55 | return name;
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56 | }
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57 |
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58 | /*
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59 | * (non-Javadoc)
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60 | *
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61 | * @see de.ugoe.cs.tasktree.treeifc.TaskTreeNode#getDescription()
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62 | */
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63 | @Override
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64 | public String getDescription() {
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65 | return description;
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66 | }
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67 |
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68 | /**
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69 | *
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70 | */
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71 | public synchronized List<ITaskTreeNode> getChildren() {
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72 | if ((children == null) || (children.size() == 0)) {
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73 | return new ArrayList<ITaskTreeNode>();
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74 | }
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75 |
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76 | return children.subList(0, children.size());
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77 | }
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78 |
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79 | /*
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80 | * (non-Javadoc)
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81 | *
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82 | * @see de.ugoe.cs.quest.tasktrees.treeifc.TaskTreeNode#equals(TaskTreeNode)
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83 | */
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84 | @Override
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85 | public boolean equals(ITaskTreeNode taskTreeNode) {
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86 | if (!this.getClass().isInstance(taskTreeNode)) {
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87 | return false;
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88 | }
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89 |
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90 | if (taskTreeNode.hashCode() != hashCode()) {
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91 | return false;
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92 | }
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93 |
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94 | TaskTreeNode other = (TaskTreeNode) taskTreeNode;
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95 |
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96 | if (id != other.id) {
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97 | return false;
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98 | }
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99 |
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100 | if (!name.equals(other.name)) {
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101 | return false;
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102 | }
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103 |
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104 | synchronized (other) {
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105 | if (children == null) {
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106 | return (other.children == null);
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107 | }
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108 | else if (other.children == null) {
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109 | return (children == null);
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110 | }
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111 | else if (other.children.size() != children.size()) {
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112 | return false;
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113 | }
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114 |
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115 | for (int i = 0; i < children.size(); i++) {
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116 | if (!children.get(i).equals(other.children.get(i))) {
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117 | return false;
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118 | }
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119 | }
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120 | }
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121 |
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122 | return true;
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123 | }
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124 |
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125 | /*
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126 | * (non-Javadoc)
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127 | *
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128 | * @see java.lang.Object#hashCode()
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129 | */
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130 | @Override
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131 | public synchronized int hashCode() {
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132 | return getClass().getSimpleName().hashCode();
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133 | }
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134 |
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135 | /*
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136 | * (non-Javadoc)
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137 | *
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138 | * @see java.lang.Object#toString()
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139 | */
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140 | @Override
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141 | public synchronized String toString() {
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142 | if (children == null) {
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143 | return name + "(" + id + ")";
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144 | }
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145 | else {
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146 | return name + "(" + id + ", " + children.size() + " children)";
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147 | }
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148 | }
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149 |
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150 | /**
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151 | * TODO: comment
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152 | *
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153 | * @param i
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154 | * @return
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155 | */
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156 | void setDescription(String description) {
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157 | this.description = description;
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158 | }
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159 |
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160 | /**
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161 | *
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162 | */
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163 | synchronized void addChild(ITaskTreeNode child) {
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164 | if (children == null) {
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165 | children = new ArrayList<ITaskTreeNode>();
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166 | }
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167 |
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168 | children.add(child);
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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 | synchronized void addChild(int index, ITaskTreeNode child) {
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175 | if (children == null) {
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176 | children = new ArrayList<ITaskTreeNode>();
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177 | }
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178 |
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179 | children.add(index, child);
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180 | }
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181 |
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182 | /**
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183 | * TODO: comment
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184 | *
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185 | * @param i
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186 | * @return
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187 | */
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188 | synchronized ITaskTreeNode removeChild(int index) {
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189 | return children.remove(index);
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190 | }
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191 |
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192 | /*
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193 | * (non-Javadoc)
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194 | *
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195 | * @see java.lang.Object#clone()
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196 | */
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197 | @Override
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198 | public ITaskTreeNode clone() {
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199 | TaskTreeNode clone = null;
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200 | try {
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201 | clone = (TaskTreeNode) super.clone();
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202 |
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203 | if (children != null) {
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204 | clone.children = new ArrayList<ITaskTreeNode>();
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205 |
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206 | for (ITaskTreeNode child : children) {
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207 | clone.children.add(child.clone());
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208 | }
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209 | }
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210 |
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211 | }
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212 | catch (CloneNotSupportedException e) {
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213 | // this should never happen. Therefore simply dump the exception
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214 | e.printStackTrace();
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215 | }
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216 |
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217 | return clone;
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218 | }
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219 |
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220 | }
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