svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.impl / src / test / java / org / gvsig / fmap / dal / feature / testmulithread / UpdateFeature.java @ 40435
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1 | 40435 | jjdelcerro | /* gvSIG. Geographic Information System of the Valencian Government
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2 | *
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3 | * Copyright (C) 2007-2008 Infrastructures and Transports Department
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4 | * of the Valencian Government (CIT)
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5 | *
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6 | * This program is free software; you can redistribute it and/or
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7 | * modify it under the terms of the GNU General Public License
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8 | * as published by the Free Software Foundation; either version 2
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9 | * of the License, or (at your option) any later version.
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10 | *
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11 | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU General Public License
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17 | * along with this program; if not, write to the Free Software
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18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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19 | * MA 02110-1301, USA.
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20 | *
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21 | */
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22 | |||
23 | /*
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24 | * AUTHORS (In addition to CIT):
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25 | * 2009 IVER T.I. S.A. {{Task}}
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26 | */
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27 | |||
28 | /**
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29 | *
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30 | */
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31 | package org.gvsig.fmap.dal.feature.testmulithread; |
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32 | |||
33 | import java.util.ArrayList; |
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34 | import java.util.Iterator; |
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35 | import java.util.List; |
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36 | |||
37 | import org.gvsig.fmap.dal.exception.DataException; |
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38 | import org.gvsig.tools.dispose.DisposableIterator; |
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39 | import org.gvsig.fmap.dal.feature.EditableFeature; |
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40 | import org.gvsig.fmap.dal.feature.Feature; |
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41 | import org.gvsig.fmap.dal.feature.FeatureSet; |
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42 | import org.gvsig.fmap.dal.feature.FeatureStore; |
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43 | import org.gvsig.fmap.dal.feature.exception.ConcurrentDataModificationException; |
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44 | import org.gvsig.tools.evaluator.Evaluator; |
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45 | import org.gvsig.tools.evaluator.EvaluatorData; |
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46 | import org.gvsig.tools.evaluator.EvaluatorException; |
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47 | |||
48 | /**
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49 | * @author jmvivo
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50 | *
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51 | */
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52 | public class UpdateFeature extends StoreTask { |
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53 | |||
54 | private List updateList = new ArrayList(); |
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55 | |||
56 | public static final int UPDATE_ALL_FEATURES = -2; |
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57 | public static final int UPDATE_LAST_FEATURE = -1; |
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58 | |||
59 | /**
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60 | * @param store
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61 | * @param timeToWait
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62 | */
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63 | public UpdateFeature(String id, FeatureStore store) { |
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64 | super(id, store);
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65 | } |
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66 | |||
67 | /**
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68 | * @param store
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69 | * @param timeToWait
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70 | */
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71 | public UpdateFeature(String id, FeatureStore store, int timeToWait) { |
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72 | super(id, store, timeToWait);
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73 | } |
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74 | |||
75 | public void addUpdate(int featureToUpdate, String attName, Object newValue) { |
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76 | UpdateItem item = new UpdateItem();
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77 | item.featureToUpdate = featureToUpdate; |
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78 | item.attributeName = attName; |
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79 | item.newValue = newValue; |
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80 | item.evaluator = null;
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81 | this.updateList.add(item);
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82 | } |
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83 | |||
84 | public void addUpdate(int featureToUpdate, String attName, |
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85 | Evaluator evaluator) { |
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86 | UpdateItem item = new UpdateItem();
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87 | item.featureToUpdate = featureToUpdate; |
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88 | item.attributeName = attName; |
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89 | item.newValue = null;
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90 | item.evaluator = evaluator; |
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91 | this.updateList.add(item);
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92 | } |
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93 | |||
94 | public Iterator getUpdateList() { |
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95 | return this.updateList.iterator(); |
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96 | } |
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97 | |||
98 | public UpdateItem getUpdate(int index) { |
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99 | return (UpdateItem) this.updateList.get(index); |
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100 | } |
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101 | |||
102 | public int getUpdateListSize() { |
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103 | return this.updateList.size(); |
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104 | } |
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105 | |||
106 | public EditableFeature applyUpdateList(Feature feature, long index, |
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107 | long lastIndex)
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108 | throws DataException, EvaluatorException {
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109 | Iterator iter = this.getUpdateList(); |
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110 | EditableFeature editable = feature.getEditable(); |
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111 | boolean hasChanges = false; |
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112 | while (iter.hasNext()) {
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113 | UpdateItem update = (UpdateItem) iter.next(); |
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114 | if (index == update.featureToUpdate
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115 | || update.featureToUpdate == UPDATE_ALL_FEATURES |
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116 | || (update.featureToUpdate == UPDATE_LAST_FEATURE && (index == lastIndex))) { |
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117 | if (update.evaluator != null) { |
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118 | editable.set(update.attributeName, update.evaluator |
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119 | .evaluate((EvaluatorData) feature)); |
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120 | } else {
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121 | editable.set(update.attributeName, update.newValue); |
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122 | } |
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123 | hasChanges = true;
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124 | } |
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125 | |||
126 | } |
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127 | if (hasChanges) {
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128 | return editable;
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129 | } |
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130 | return null; |
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131 | } |
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132 | |||
133 | public void run() { |
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134 | if (!this.startProcess()) { |
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135 | return;
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136 | } |
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137 | if (this.updateList.size() == 0) { |
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138 | finishedNoOk(); |
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139 | return;
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140 | } |
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141 | FeatureSet set; |
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142 | DisposableIterator iter = null;
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143 | try {
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144 | set = this.store.getFeatureSet();
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145 | } catch (DataException e) {
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146 | finishedError(e); |
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147 | return;
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148 | } |
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149 | try {
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150 | long size = set.getSize();
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151 | EditableFeature newFeature = this.store.createNewFeature(true); |
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152 | |||
153 | long i = 0; |
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154 | try {
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155 | |||
156 | iter = set.iterator(); |
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157 | while (iter.hasNext()) {
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158 | Feature feature = (Feature) iter.next(); |
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159 | EditableFeature result = this.applyUpdateList(feature,
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160 | i, size - 1);
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161 | if (result != null) { |
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162 | set.update(result); |
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163 | } |
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164 | i++; |
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165 | } |
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166 | } catch (ConcurrentDataModificationException e) {
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167 | finishedConcurrentError(e); |
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168 | return;
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169 | } catch (DataException e) {
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170 | finishedError(e); |
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171 | return;
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172 | } |
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173 | |||
174 | if ((size == set.getSize()) && (set.getSize() == i)) {
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175 | finishedOk(); |
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176 | } else {
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177 | finishedNoOk(); |
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178 | } |
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179 | } catch (Throwable e) { |
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180 | finishedError(e); |
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181 | return;
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182 | } finally {
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183 | iter.dispose(); |
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184 | set.dispose(); |
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185 | } |
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186 | } |
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187 | |||
188 | |||
189 | public class UpdateItem{ |
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190 | public long featureToUpdate = UPDATE_ALL_FEATURES; |
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191 | public String attributeName = null; |
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192 | public Evaluator evaluator = null; |
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193 | public Object newValue = null; |
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194 | |||
195 | } |
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196 | |||
197 | } |