svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.impl / src / main / java / org / gvsig / fmap / dal / feature / impl / SpatialManager.java @ 40435
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1 | 40435 | jjdelcerro | |
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2 | /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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3 | *
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4 | * Copyright (C) 2005 IVER T.I. and Generalitat Valenciana.
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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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19 | *
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20 | * For more information, contact:
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21 | *
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22 | * Generalitat Valenciana
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23 | * Conselleria d'Infraestructures i Transport
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24 | * Av. Blasco Ib??ez, 50
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25 | * 46010 VALENCIA
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26 | * SPAIN
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27 | *
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28 | * +34 963862235
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29 | * gvsig@gva.es
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30 | * www.gvsig.gva.es
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31 | *
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32 | * or
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33 | *
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34 | * IVER T.I. S.A
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35 | * Salamanca 50
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36 | * 46005 Valencia
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37 | * Spain
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38 | *
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39 | * +34 963163400
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40 | * dac@iver.es
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41 | */
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42 | |||
43 | package org.gvsig.fmap.dal.feature.impl; |
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44 | |||
45 | import java.util.ArrayList; |
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46 | import java.util.ConcurrentModificationException; |
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47 | import java.util.Iterator; |
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48 | |||
49 | import org.gvsig.fmap.dal.exception.DataException; |
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50 | import org.gvsig.fmap.dal.feature.Feature; |
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51 | import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
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52 | import org.gvsig.fmap.dal.feature.FeatureIndex; |
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53 | import org.gvsig.fmap.dal.feature.FeatureIndexes; |
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54 | import org.gvsig.fmap.dal.feature.FeatureReference; |
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55 | import org.gvsig.fmap.dal.feature.FeatureSet; |
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56 | import org.gvsig.fmap.dal.feature.FeatureStore; |
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57 | import org.gvsig.fmap.dal.feature.FeatureType; |
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58 | import org.gvsig.fmap.dal.feature.exception.ConcurrentDataModificationException; |
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59 | import org.gvsig.fmap.geom.GeometryLocator; |
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60 | import org.gvsig.fmap.geom.primitive.Envelope; |
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61 | import org.gvsig.tools.dispose.DisposableIterator; |
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62 | import org.slf4j.Logger; |
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63 | import org.slf4j.LoggerFactory; |
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64 | |||
65 | /**
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66 | * DOCUMENT ME!
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67 | *
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68 | * @author Vicente Caballero Navarro
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69 | */
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70 | public class SpatialManager { |
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71 | private static final Logger LOG = LoggerFactory.getLogger(SpatialManager.class); |
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72 | |||
73 | protected boolean isFullExtentDirty = true; |
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74 | private FeatureStore featureStore;
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75 | private FeatureIndex featureIndex = null; |
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76 | private Envelope originalEnvelope = null; |
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77 | private Envelope fullEnvelope = null; |
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78 | private ArrayList feaOperation=new ArrayList(); |
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79 | private boolean noSpatialData = false; |
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80 | |||
81 | public SpatialManager(FeatureStore featureStore, Envelope originalEnvelope)
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82 | throws DataException {
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83 | this.featureStore=featureStore;
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84 | FeatureIndexes findexes=featureStore.getIndexes(); |
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85 | // Comprobamos si hay algun campo espacial a manejar
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86 | |||
87 | FeatureType fType = this.featureStore.getDefaultFeatureType();
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88 | // TODO Multy FType !!
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89 | if (fType.getDefaultGeometryAttributeIndex() < 0) { |
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90 | noSpatialData = true;
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91 | return;
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92 | } |
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93 | FeatureAttributeDescriptor attr = fType.getAttributeDescriptor(fType |
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94 | .getDefaultGeometryAttributeIndex()); |
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95 | this.originalEnvelope = originalEnvelope;
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96 | if ((originalEnvelope != null) && (!originalEnvelope.isEmpty())) { |
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97 | this.fullEnvelope = originalEnvelope.getGeometry().getEnvelope();
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98 | } else {
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99 | FeatureAttributeDescriptor geoAttr = fType.getAttributeDescriptor(fType.getDefaultGeometryAttributeIndex()); |
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100 | try {
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101 | this.fullEnvelope = GeometryLocator.getGeometryManager()
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102 | .createEnvelope(geoAttr.getGeometrySubType()); |
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103 | } catch (Exception e) { |
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104 | // FIXME Excpetion
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105 | throw new RuntimeException(e); |
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106 | } |
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107 | } |
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108 | if (!fType.hasOID()) {
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109 | return;
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110 | } |
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111 | |||
112 | Iterator iterator = findexes.iterator();
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113 | FeatureIndex index; |
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114 | while (iterator.hasNext()) {
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115 | index = (FeatureIndex) iterator.next(); |
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116 | if (index.getAttributeNames().size() == 1 |
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117 | && index.getAttributeNames().contains(attr.getName())) { |
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118 | featureIndex = index; |
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119 | break;
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120 | } |
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121 | } |
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122 | |||
123 | if (featureIndex instanceof DefaultFeatureIndex) { |
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124 | ((DefaultFeatureIndex) featureIndex).setValid(true);
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125 | } |
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126 | } |
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127 | |||
128 | |||
129 | |||
130 | /**
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131 | * DOCUMENT ME!
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132 | *
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133 | * @param feature DOCUMENT ME!
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134 | * @param oldFeature DOCUMENT ME!
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135 | */
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136 | public void updateFeature(Feature feature, Feature oldFeature) { |
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137 | if (noSpatialData) {
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138 | return;
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139 | } |
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140 | try {
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141 | if (featureIndex != null) { |
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142 | featureIndex.delete(oldFeature); |
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143 | } |
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144 | feaOperation.add(new FeatureOperation(((DefaultFeature) oldFeature)
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145 | .getReference(), FeatureOperation.DELETE)); |
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146 | if (featureIndex != null) { |
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147 | featureIndex.insert(feature); |
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148 | } |
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149 | feaOperation.add(new FeatureOperation(((DefaultFeature) feature)
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150 | .getReference(), FeatureOperation.INSERT)); |
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151 | } catch (DataException e) {
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152 | throw new RuntimeException("Exception updating feature: " |
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153 | + feature, e); |
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154 | } |
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155 | // } else {
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156 | // fullEnvelope.add(feature.getDefaultEnvelope());
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157 | isFullExtentDirty = true;
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158 | } |
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159 | |||
160 | /**
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161 | * DOCUMENT ME!
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162 | *
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163 | * @param feature DOCUMENT ME!
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164 | */
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165 | public void insertFeature(Feature feature) { |
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166 | if (noSpatialData) {
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167 | return;
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168 | } |
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169 | try {
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170 | if (featureIndex != null) { |
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171 | featureIndex.insert(feature); |
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172 | } |
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173 | feaOperation.add(new FeatureOperation(
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174 | ((DefaultFeature) feature).getReference(), |
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175 | FeatureOperation.INSERT)); |
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176 | } catch (DataException e) {
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177 | throw new RuntimeException("Exception inserting feature: " |
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178 | + feature, e); |
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179 | } |
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180 | isFullExtentDirty = true;
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181 | // } else if (!isFullExtentDirty) {
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182 | // fullEnvelope.add(feature.getDefaultEnvelope());
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183 | // }
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184 | } |
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185 | |||
186 | /**
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187 | * DOCUMENT ME!
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188 | *
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189 | * @param feature DOCUMENT ME!
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190 | */
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191 | public void deleteFeature(Feature feature) { |
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192 | if (noSpatialData) {
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193 | return;
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194 | } |
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195 | try {
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196 | if (featureIndex != null) { |
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197 | featureIndex.delete(feature); |
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198 | } |
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199 | feaOperation.add(new FeatureOperation(((DefaultFeature) feature)
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200 | .getReference(), FeatureOperation.DELETE)); |
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201 | } catch (DataException e) {
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202 | throw new RuntimeException("Exception deleting feature: " |
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203 | + feature, e); |
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204 | } |
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205 | isFullExtentDirty = true;
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206 | } |
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207 | |||
208 | public void clear() { |
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209 | } |
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210 | |||
211 | public Envelope getEnvelope() throws DataException { |
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212 | if (noSpatialData) {
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213 | return null; |
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214 | } |
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215 | if (!isFullExtentDirty){
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216 | return this.fullEnvelope; |
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217 | } |
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218 | |||
219 | // FIXME in every changes when anyone ask for envelope it was regenerated.
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220 | // if we assume that the envelope may not be the minimum in edit mode
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221 | // this call must be very much faster
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222 | |||
223 | |||
224 | FeatureAttributeDescriptor attr = featureStore.getDefaultFeatureType() |
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225 | .getAttributeDescriptor( |
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226 | featureStore.getDefaultFeatureType() |
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227 | .getDefaultGeometryAttributeIndex()); |
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228 | Envelope fullEnvelope = null;
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229 | |||
230 | FeatureSet set = null;
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231 | DisposableIterator iterator = null;
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232 | try {
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233 | set = featureStore.getFeatureSet(); |
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234 | iterator = set.fastIterator(); |
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235 | //First while to initialize the feature envelope
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236 | while (iterator.hasNext()) {
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237 | Feature feature = (Feature) iterator.next(); |
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238 | Envelope envelope = feature.getDefaultEnvelope(); |
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239 | if (envelope != null){ |
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240 | fullEnvelope = (Envelope)envelope.clone(); |
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241 | break;
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242 | } |
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243 | } |
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244 | //Second while to add new evelopes tho the full envelope
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245 | while (iterator.hasNext()) {
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246 | Feature feature = (Feature) iterator.next(); |
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247 | Envelope envelope = feature.getDefaultEnvelope(); |
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248 | if(envelope!=null){ |
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249 | fullEnvelope.add(envelope); |
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250 | } |
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251 | } |
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252 | //Creating an empty envelope by default
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253 | if (fullEnvelope == null){ |
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254 | fullEnvelope = GeometryLocator.getGeometryManager().createEnvelope( |
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255 | attr.getGeometrySubType()); |
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256 | } |
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257 | } catch (ConcurrentModificationException e) { |
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258 | throw e;
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259 | } catch (ConcurrentDataModificationException e) {
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260 | throw e;
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261 | } catch (Exception e) { |
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262 | throw new RuntimeException(e); |
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263 | } finally {
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264 | if (iterator != null) { |
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265 | iterator.dispose(); |
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266 | } |
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267 | if (set != null) { |
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268 | set.dispose(); |
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269 | } |
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270 | } |
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271 | this.fullEnvelope = fullEnvelope;
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272 | this.isFullExtentDirty = false; |
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273 | return fullEnvelope;
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274 | } |
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275 | |||
276 | |||
277 | |||
278 | public void cancelModifies() { |
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279 | if (noSpatialData) {
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280 | return;
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281 | } |
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282 | if (featureIndex != null){ |
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283 | for (int i = feaOperation.size()-1 ; i>=0 ; i--){ |
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284 | try {
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285 | FeatureOperation fo = (FeatureOperation) feaOperation.get(i); |
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286 | if (fo.getOperation() == FeatureOperation.INSERT){
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287 | featureIndex.delete(fo.getFeatureReference().getFeature()); |
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288 | }else if (fo.getOperation() == FeatureOperation.DELETE){ |
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289 | featureIndex.insert(fo.getFeatureReference().getFeature()); |
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290 | } |
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291 | } catch (DataException e) {
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292 | LOG.error("Error canceling the edition", e);
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293 | } |
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294 | } |
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295 | } |
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296 | if (originalEnvelope!=null){ |
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297 | fullEnvelope = originalEnvelope.getGeometry().getEnvelope(); |
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298 | } else {
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299 | fullEnvelope = null;
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300 | } |
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301 | isFullExtentDirty = false;
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302 | } |
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303 | |||
304 | private class FeatureOperation{ |
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305 | final static int INSERT=0; |
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306 | final static int DELETE=1; |
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307 | private FeatureReference ref;
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308 | private int operation; |
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309 | public FeatureOperation(FeatureReference fe,int op){ |
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310 | ref=fe; |
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311 | operation=op; |
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312 | } |
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313 | public FeatureReference getFeatureReference() {
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314 | return ref;
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315 | } |
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316 | public void setFeatureReference(FeatureReference ref) { |
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317 | this.ref = ref;
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318 | } |
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319 | public int getOperation() { |
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320 | return operation;
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321 | } |
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322 | public void setOperation(int operation) { |
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323 | this.operation = operation;
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324 | } |
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325 | } |
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326 | |||
327 | } |