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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 the mapping of a trace ID into actual trace string |
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17 * |
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18 */ |
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19 package com.nokia.tracebuilder.model; |
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20 |
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21 import java.util.ArrayList; |
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22 import java.util.Iterator; |
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23 |
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24 /** |
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25 * Represents the mapping of a trace ID into actual trace string. When a trace |
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26 * is decoded, the trace ID found from the binary trace file is converted to the |
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27 * text stored in this trace. |
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28 * |
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29 */ |
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30 public class Trace extends TraceObject implements Iterable<TraceParameter> { |
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31 |
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32 /** |
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33 * The trace string |
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34 */ |
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35 private String trace = ""; //$NON-NLS-1$ |
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36 |
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37 /** |
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38 * List of TraceParameter objects. |
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39 */ |
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40 private ArrayList<TraceParameter> parameters = new ArrayList<TraceParameter>(); |
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41 |
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42 /** |
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43 * The trace group this trace belongs to |
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44 */ |
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45 private TraceGroup group; |
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46 |
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47 /** |
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48 * Creates a new trace and associates it with given TraceGroup |
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49 * |
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50 * @param group |
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51 * the trace group |
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52 */ |
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53 Trace(TraceGroup group) { |
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54 setModel(group.getModel()); |
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55 this.group = group; |
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56 group.addTrace(this); |
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57 } |
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58 |
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59 /* |
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60 * (non-Javadoc) |
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61 * |
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62 * @see com.nokia.tracebuilder.model.TraceObject#reset() |
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63 */ |
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64 @Override |
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65 void reset() { |
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66 super.reset(); |
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67 for (TraceParameter parameter : parameters) { |
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68 // Model listeners are not notified on reset, but if the |
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69 // parameter itself implements a delete notification interface, |
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70 // it must be called to do appropriate cleanup |
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71 notifyOnDelete(parameter); |
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72 parameter.reset(); |
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73 } |
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74 parameters.clear(); |
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75 } |
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76 |
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77 /** |
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78 * Sets the trace string. Generates propertyUpdated event to model listeners |
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79 * if the string changes |
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80 * |
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81 * @see TraceModelListener#propertyUpdated(TraceObject, int) |
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82 * @param trace |
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83 * the trace string |
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84 */ |
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85 public void setTrace(String trace) { |
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86 if (trace == null) { |
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87 trace = ""; //$NON-NLS-1$ |
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88 } |
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89 if (!trace.equals(this.trace)) { |
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90 this.trace = trace; |
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91 getModel().notifyPropertyUpdated(this, TraceModelListener.TRACE); |
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92 } |
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93 } |
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94 |
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95 /** |
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96 * Returns the trace string. This never returns null |
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97 * |
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98 * @return the trace string |
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99 */ |
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100 public String getTrace() { |
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101 return trace; |
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102 } |
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103 |
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104 /** |
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105 * Returns the group to which this trace belongs |
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106 * |
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107 * @return trace group |
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108 */ |
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109 public TraceGroup getGroup() { |
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110 return group; |
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111 } |
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112 |
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113 /** |
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114 * Adds a new parameter to the end of parameter list. Generates objectAdded |
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115 * event to model listeners |
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116 * |
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117 * @see TraceModelListener#objectAdded(TraceObject, TraceObject) |
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118 * @param parameter |
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119 * the new parameter |
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120 */ |
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121 public void addParameter(TraceParameter parameter) { |
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122 parameters.add(parameter); |
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123 getModel().notifyObjectAdded(this, parameter); |
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124 } |
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125 |
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126 /** |
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127 * Inserts a new parameter to the given location. Generates objectAdded |
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128 * event to model listeners |
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129 * |
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130 * @see TraceModelListener#objectAdded(TraceObject, TraceObject) |
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131 * @param index |
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132 * the index for new parameter |
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133 * @param parameter |
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134 * the new parameter |
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135 */ |
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136 void insertParameter(int index, TraceParameter parameter) { |
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137 parameters.add(index, parameter); |
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138 getModel().notifyObjectAdded(this, parameter); |
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139 } |
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140 |
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141 /** |
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142 * Removes a parameter from this trace object. Generates a objectRemoved |
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143 * event to model listeners if the parameter is actually removed |
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144 * |
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145 * @see TraceModelListener#objectRemoved(TraceObject, TraceObject) |
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146 * @param parameter |
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147 * the parameter to be removed |
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148 */ |
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149 public void removeParameter(TraceParameter parameter) { |
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150 if (parameters.remove(parameter)) { |
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151 getModel().notifyObjectRemoved(this, parameter); |
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152 parameter.reset(); |
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153 } |
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154 } |
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155 |
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156 /** |
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157 * Removes parameter at given index |
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158 * |
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159 * @param index |
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160 * the index of the parameter |
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161 */ |
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162 public void removeParameterAt(int index) { |
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163 if (index >= 0 && index < parameters.size()) { |
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164 TraceParameter parameter = parameters.get(index); |
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165 parameters.remove(index); |
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166 getModel().notifyObjectRemoved(this, parameter); |
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167 parameter.reset(); |
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168 } |
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169 } |
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170 |
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171 /** |
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172 * Determines if this object has parameters. |
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173 * |
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174 * @return true if this object has parameters |
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175 */ |
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176 public boolean hasParameters() { |
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177 return !parameters.isEmpty(); |
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178 } |
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179 |
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180 /** |
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181 * Gets the number of parameters |
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182 * |
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183 * @return the number of parameters |
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184 */ |
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185 public int getParameterCount() { |
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186 return parameters.size(); |
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187 } |
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188 |
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189 /** |
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190 * Returns highest parameter ID + 1. Can be used to create an unique ID for |
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191 * a new parameter. |
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192 * |
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193 * @return the next parameter ID |
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194 */ |
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195 public int getNextParameterID() { |
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196 int max = 0; |
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197 for (TraceParameter parameter : parameters) { |
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198 int id = parameter.getID(); |
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199 if (id > max) { |
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200 max = id; |
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201 } |
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202 } |
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203 return max + 1; |
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204 } |
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205 |
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206 /** |
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207 * Gets the parameter at given index |
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208 * |
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209 * @param index |
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210 * the parameter index |
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211 * @return the parameter at the index |
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212 */ |
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213 public TraceParameter getParameter(int index) { |
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214 return parameters.get(index); |
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215 } |
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216 |
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217 /** |
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218 * Returns the parameters of this object |
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219 * |
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220 * @return iterator over the parameters |
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221 */ |
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222 public Iterator<TraceParameter> getParameters() { |
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223 return parameters.iterator(); |
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224 } |
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225 |
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226 /* |
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227 * (non-Javadoc) |
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228 * |
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229 * @see java.lang.Iterable#iterator() |
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230 */ |
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231 public Iterator<TraceParameter> iterator() { |
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232 return parameters.iterator(); |
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233 } |
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234 |
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235 /** |
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236 * Gets a parameter by ID |
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237 * |
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238 * @param id |
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239 * the parameter ID |
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240 * @return the parameter or null |
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241 */ |
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242 public TraceParameter findParameterByID(int id) { |
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243 TraceParameter retval = null; |
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244 for (TraceParameter parameter : parameters) { |
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245 if (parameter.getID() == id) { |
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246 retval = parameter; |
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247 break; |
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248 } |
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249 } |
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250 return retval; |
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251 } |
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252 |
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253 /** |
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254 * Gets a parameter by name |
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255 * |
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256 * @param name |
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257 * the name of a parameter |
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258 * @return the parameter or null |
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259 */ |
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260 public TraceParameter findParameterByName(String name) { |
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261 TraceParameter retval = null; |
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262 for (TraceParameter parameter : parameters) { |
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263 if (parameter.getName().equals(name)) { |
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264 retval = parameter; |
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265 break; |
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266 } |
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267 } |
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268 return retval; |
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269 } |
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270 |
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271 /** |
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272 * Gets a parameter that implements the given extension class. If there are |
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273 * multiple parameters with same extension class, the first one is returned |
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274 * |
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275 * @param <T> |
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276 * the type of the extension |
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277 * @param c |
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278 * the class |
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279 * @return the parameter |
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280 */ |
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281 public <T extends TraceModelExtension> TraceParameter findParameterByExtension( |
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282 Class<T> c) { |
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283 TraceParameter retval = null; |
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284 for (TraceParameter parameter : parameters) { |
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285 T ext = parameter.getExtension(c); |
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286 if (ext != null) { |
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287 retval = parameter; |
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288 break; |
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289 } |
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290 } |
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291 return retval; |
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292 } |
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293 |
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294 } |