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1 /* |
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2 * Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 * Represents a logical collection of traces somehow related to each other |
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17 * |
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18 */ |
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19 package com.nokia.tracecompiler.model; |
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20 |
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21 import java.util.ArrayList; |
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22 import java.util.Collections; |
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23 import java.util.Iterator; |
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24 |
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25 /** |
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26 * Represents a logical collection of traces somehow related to each other. Each |
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27 * trace group specifies a prefix that is attached to all trace lines made |
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28 * within that group. |
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29 * |
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30 */ |
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31 public class TraceGroup extends TraceObject implements Iterable<Trace> { |
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32 |
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33 /** |
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34 * List of traces, sorted by ID |
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35 */ |
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36 private ArrayList<Trace> tracesByID = new ArrayList<Trace>(); |
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37 |
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38 /** |
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39 * List of traces, sorted by name |
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40 */ |
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41 private ArrayList<Trace> tracesByName = new ArrayList<Trace>(); |
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42 |
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43 /** |
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44 * Creates a new trace group and associates it with given trace model. |
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45 * |
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46 * @param model |
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47 * the trace model |
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48 */ |
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49 TraceGroup(TraceModel model) { |
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50 setModel(model); |
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51 model.addGroup(this); |
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52 } |
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53 |
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54 /** |
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55 * Adds a trace to this group. Creates objectAdded event to model listeners |
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56 * |
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57 * @see TraceModelListener#objectAdded(TraceObject, TraceObject) |
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58 * @param trace |
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59 * the trace to be added |
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60 */ |
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61 void addTrace(Trace trace) { |
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62 // Sorted when ID is set to trace |
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63 tracesByID.add(trace); |
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64 // Sorted when name is set to trace |
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65 tracesByName.add(trace); |
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66 getModel().notifyObjectAdded(this, trace); |
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67 } |
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68 |
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69 /** |
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70 * Removes a trace from this group. Creates objectRemoved event to model |
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71 * listeners |
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72 * |
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73 * @see TraceModelListener#objectRemoved(TraceObject, TraceObject) |
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74 * @param trace |
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75 * the trace to be removed |
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76 * @throws TraceCompilerException |
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77 */ |
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78 public void removeTrace(Trace trace) throws TraceCompilerException { |
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79 int index = Collections.binarySearch(tracesByID, trace, |
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80 TraceObjectUtils.traceObjectIDComparator); |
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81 if (index >= 0) { |
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82 tracesByID.remove(index); |
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83 index = Collections.binarySearch(tracesByName, trace, |
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84 TraceObjectUtils.traceObjectNameComparator); |
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85 tracesByName.remove(index); |
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86 getModel().notifyObjectRemoved(this, trace); |
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87 trace.reset(); |
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88 } |
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89 } |
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90 |
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91 /** |
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92 * Determines if this group has traces. |
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93 * |
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94 * @return true if the group contains traces |
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95 */ |
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96 public boolean hasTraces() { |
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97 return !tracesByID.isEmpty(); |
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98 } |
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99 |
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100 /** |
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101 * Gets the number of traces in this group. |
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102 * |
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103 * @return the number of traces |
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104 */ |
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105 public int getTraceCount() { |
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106 return tracesByID.size(); |
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107 } |
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108 |
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109 /** |
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110 * Returns an iterator over the traces within this group. |
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111 * |
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112 * @return the iterator |
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113 */ |
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114 public Iterator<Trace> getTraces() { |
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115 return tracesByID.iterator(); |
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116 } |
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117 |
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118 /* |
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119 * (non-Javadoc) |
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120 * |
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121 * @see java.lang.Iterable#iterator() |
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122 */ |
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123 public Iterator<Trace> iterator() { |
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124 return tracesByID.iterator(); |
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125 } |
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126 |
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127 /* |
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128 * (non-Javadoc) |
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129 * |
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130 * @see com.nokia.tracecompiler.model.TraceObject#reset() |
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131 */ |
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132 @Override |
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133 void reset() { |
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134 // Reset removes constant table references |
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135 for (Trace trace : tracesByID) { |
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136 // Model listeners are not notified on reset, but if the |
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137 // trace itself implements a delete notification interface, |
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138 // it must be called to do appropriate cleanup |
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139 notifyOnDelete(trace); |
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140 trace.reset(); |
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141 } |
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142 tracesByID.clear(); |
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143 tracesByName.clear(); |
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144 super.reset(); |
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145 } |
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146 |
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147 /** |
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148 * Returns highest trace ID + 1. Can be used to create an unique ID for a |
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149 * new trace. |
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150 * |
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151 * @return the next trace ID |
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152 */ |
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153 public int getNextTraceID() { |
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154 int ret; |
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155 if (tracesByID.size() > 0) { |
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156 ret = tracesByID.get(tracesByID.size() - 1).getID() + 1; |
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157 } else { |
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158 ret = 1; |
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159 } |
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160 return ret; |
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161 } |
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162 |
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163 /** |
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164 * Gets the trace which has given ID |
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165 * |
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166 * @param id |
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167 * the trace ID |
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168 * @return the trace or null |
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169 */ |
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170 public Trace findTraceByID(int id) { |
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171 int index = Collections.binarySearch(tracesByID, id, |
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172 TraceObjectUtils.traceToIDComparator); |
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173 Trace retval; |
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174 if (index >= 0) { |
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175 retval = tracesByID.get(index); |
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176 } else { |
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177 retval = null; |
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178 } |
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179 return retval; |
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180 } |
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181 |
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182 /** |
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183 * Called by the model when a trace property is updated |
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184 * |
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185 * @param source |
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186 * the trace that was changed |
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187 * @param property |
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188 * the property that was changed |
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189 */ |
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190 void tracePropertyUpdated(TraceObject source, int property) { |
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191 if (property == TraceModelListener.NAME) { |
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192 Collections.sort(tracesByName, |
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193 TraceObjectUtils.traceObjectNameComparator); |
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194 } else if (property == TraceModelListener.ID) { |
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195 traceIDsUpdated(); |
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196 } |
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197 } |
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198 |
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199 /** |
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200 * Sorts the trace array based on new ID configuration |
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201 */ |
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202 void traceIDsUpdated() { |
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203 Collections.sort(tracesByID, TraceObjectUtils.traceObjectIDComparator); |
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204 } |
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205 } |