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.treeimpl;
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16 |
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17 | import java.util.ArrayList; |
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18 | import java.util.HashMap; |
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19 | |
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20 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITask;
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21 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskInfo;
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22 | import de.ugoe.cs.autoquest.tasktrees.treeifc.TaskMetric; |
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23 |
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24 | /**
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25 | * <p> |
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26 | * this is the default implementation of the interface {@link ITaskInfo}. It |
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27 | * does not do anything fancy except implementing the interface. |
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28 | * </p> |
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29 | * |
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30 | * @author Patrick Harms |
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31 | */
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32 | public class TaskInfo implements ITaskInfo {
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33 |
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34 | /** |
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35 | * <p> |
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36 | * the task to which the infos belong |
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37 | * </p> |
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38 | */
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39 | private ITask task; |
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40 | |
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41 | /** |
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42 | * <p> |
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43 | * all available measures for the task |
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44 | * </p> |
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45 | */ |
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46 | private ArrayList<Measure> measures = new ArrayList<Measure>();
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47 |
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48 | /** |
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49 | * <p> |
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50 | * initialized the task infos with the task to which they belong. |
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51 | * </p> |
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52 | *
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53 | * @param task
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54 | */
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55 | TaskInfo(ITask task) {
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56 | this.task = task;
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57 | }
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58 |
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59 | /* (non-Javadoc)
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60 | * @see de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskInfo#getTask()
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61 | */
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62 | @Override
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63 | public ITask getTask() {
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64 | return task;
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65 | }
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66 |
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67 | /* (non-Javadoc) |
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68 | * @see de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskInfo#getMeasures() |
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69 | */ |
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70 | @Override |
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71 | public IMeasure[] getMeasures() { |
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72 | measures.trimToSize(); |
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73 | return measures.toArray(new IMeasure[measures.size()]); |
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74 | } |
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75 | |
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76 | /* (non-Javadoc) |
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77 | * @see de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskInfo#getMeasureValue(java.lang.String) |
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78 | */ |
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79 | @Override |
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80 | public int getMeasureValue(TaskMetric metric) { |
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81 | Measure measure = getMeasure(metric); |
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82 | |
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83 | if (measure == null) { |
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84 | throw new IllegalArgumentException("unknown metric " + metric); |
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85 | } |
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86 | |
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87 | return measure.getValue(); |
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88 | } |
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89 | |
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90 | /* (non-Javadoc) |
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91 | * @see de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskInfo#getMeasureValue(java.lang.String, de.ugoe.cs.autoquest.tasktrees.treeifc.ITask) |
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92 | */ |
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93 | @Override |
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94 | public int getMeasureValue(TaskMetric metric, ITask context) { |
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95 | Measure measure = getMeasure(metric); |
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96 | |
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97 | if (measure == null) { |
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98 | throw new IllegalArgumentException("unknown metric " + metric); |
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99 | } |
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100 | |
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101 | return measure.getValue(context); |
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102 | } |
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103 | |
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104 | /* (non-Javadoc)
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105 | * @see java.lang.Object#toString()
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106 | */
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107 | @Override
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108 | public synchronized String toString() {
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109 | return "TaskInfo(" + task + ")";
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110 | }
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111 | |
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112 | /** |
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113 | * <p> |
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114 | * must be called to indicate that a new new measures for the provided metric are about to |
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115 | * be calculated and added. |
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116 | * </p> |
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117 | * |
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118 | * @param metric the metric for which measures are about to be provided |
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119 | */ |
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120 | void addMeasure(TaskMetric metric) { |
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121 | Measure measure = getMeasure(metric); |
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122 | |
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123 | if (measure != null) { |
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124 | throw new IllegalArgumentException("measure for metric " + metric + " already exists."); |
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125 | } |
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126 | |
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127 | measure = new Measure(metric); |
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128 | measures.add(measure); |
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129 | } |
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130 | |
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131 | /** |
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132 | * <p> |
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133 | * sets a specific value for a measure of a specific metric in the provided context of the task |
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134 | * </p> |
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135 | * |
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136 | * @param metric the metric to which the value belongs |
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137 | * @param context the context of the task in which the measure was recorded |
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138 | * @param value the value of the measure |
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139 | */ |
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140 | void setCount(TaskMetric metric, ITask context, int value) { |
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141 | Measure measure = getMeasure(metric); |
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142 | |
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143 | if (measure == null) { |
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144 | throw new IllegalArgumentException("unknown metric. Please create a measure " + |
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145 | "for the metric before using it."); |
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146 | } |
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147 | |
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148 | measure.set(context, value); |
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149 | } |
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150 | |
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151 | /** |
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152 | * <p> |
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153 | * increases a specific value for a measure of a specific metric in the provided context of the |
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154 | * task |
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155 | * </p> |
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156 | * |
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157 | * @param metric the metric to which the value belongs |
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158 | * @param context the context of the task in which the measure was recorded |
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159 | * @param increment the increment to be added to the value of the measure |
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160 | */ |
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161 | void increaseCount(TaskMetric metric, ITask context, int increment) { |
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162 | Measure measure = getMeasure(metric); |
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163 | |
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164 | if (measure == null) { |
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165 | throw new IllegalArgumentException("unknown metric. Please create a measure " + |
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166 | "for the metric before using it."); |
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167 | } |
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168 | |
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169 | measure.increase(context, increment); |
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170 | } |
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171 | |
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172 | /** |
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173 | * <p> |
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174 | * convenience method to internally determine the measure for a specific metric |
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175 | * </p> |
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176 | */ |
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177 | private Measure getMeasure(TaskMetric metric) { |
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178 | for (Measure candidate : measures) { |
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179 | if (candidate.getMetric().equals(metric)) { |
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180 | return candidate; |
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181 | } |
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182 | } |
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183 | |
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184 | return null; |
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185 | } |
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186 | |
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187 | /** |
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188 | * <p> |
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189 | * implementation for the measure interface of the task info interface. Does nothing fancy |
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190 | * except implementing the interface |
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191 | * </p> |
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192 | * |
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193 | * @author Patrick Harms |
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194 | */ |
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195 | private static class Measure implements IMeasure { |
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196 | |
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197 | /** |
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198 | * <p> |
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199 | * the metric to which the measure belongs |
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200 | * </p> |
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201 | */ |
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202 | private TaskMetric metric; |
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203 | |
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204 | /** |
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205 | * <p> |
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206 | * the observed values for the difference contexts of the task |
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207 | * </p> |
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208 | */ |
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209 | private HashMap<ITask, Integer> values; |
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210 | |
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211 | /** |
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212 | * <p> |
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213 | * the context free value of the measure independent of the task context |
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214 | * </p> |
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215 | */ |
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216 | private int contextFreeValue = 0; |
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217 | |
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218 | /** |
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219 | * <p> |
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220 | * initializes the measure with a specific metric |
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221 | * </p> |
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222 | */ |
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223 | private Measure(TaskMetric metric) { |
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224 | super(); |
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225 | this.metric = metric; |
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226 | } |
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227 | |
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228 | /* (non-Javadoc) |
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229 | * @see de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskInfo.IMeasure#getMetric() |
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230 | */ |
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231 | @Override |
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232 | public TaskMetric getMetric() { |
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233 | return metric; |
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234 | } |
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235 | |
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236 | /* (non-Javadoc) |
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237 | * @see de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskInfo.IMeasure#getValue() |
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238 | */ |
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239 | @Override |
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240 | public int getValue() { |
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241 | return contextFreeValue; |
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242 | } |
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243 | |
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244 | /* (non-Javadoc) |
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245 | * @see de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskInfo.IMeasure#getValue(de.ugoe.cs.autoquest.tasktrees.treeifc.ITask) |
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246 | */ |
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247 | @Override |
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248 | public int getValue(ITask context) { |
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249 | if ((context != null) && (values != null)) { |
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250 | Integer currentValue = values.get(context); |
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251 | |
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252 | if (currentValue != null) { |
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253 | return currentValue; |
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254 | } |
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255 | } |
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256 | |
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257 | return Integer.MIN_VALUE; |
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258 | } |
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259 | |
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260 | /** |
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261 | * <p> |
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262 | * sets the value of the measure context free as well as specific to the provided context |
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263 | * </p> |
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264 | */ |
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265 | private void set(ITask context, int value) { |
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266 | contextFreeValue = value; |
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267 | |
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268 | if (context != null) { |
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269 | if (values == null) { |
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270 | values = new HashMap<ITask, Integer>(); |
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271 | } |
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272 | |
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273 | values.put(context, value); |
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274 | } |
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275 | } |
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276 | |
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277 | /** |
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278 | * <p> |
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279 | * increases the value of the measure context free as well as specific to the provided |
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280 | * context according to the provided increment |
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281 | * </p> |
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282 | */ |
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283 | private void increase(ITask context, int increment) { |
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284 | contextFreeValue += increment; |
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285 | |
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286 | if (context != null) { |
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287 | if (values == null) { |
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288 | values = new HashMap<ITask, Integer>(); |
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289 | } |
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290 | |
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291 | Integer currentValue = values.get(context); |
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292 | |
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293 | if (currentValue == null) { |
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294 | currentValue = 0; |
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295 | } |
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296 | |
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297 | values.put(context, currentValue + increment); |
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298 | } |
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299 | } |
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300 | |
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301 | } |
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302 | |
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303 | }
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