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 @ 42811
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1 | 40559 | jjdelcerro | /**
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2 | * gvSIG. Desktop Geographic Information System.
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3 | 40435 | jjdelcerro | *
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4 | 40559 | jjdelcerro | * Copyright (C) 2007-2013 gvSIG Association.
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5 | 40435 | jjdelcerro | *
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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 | 40559 | jjdelcerro | * as published by the Free Software Foundation; either version 3
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9 | 40435 | jjdelcerro | * 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 | 40559 | jjdelcerro | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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19 | * MA 02110-1301, USA.
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20 | 40435 | jjdelcerro | *
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21 | 40559 | jjdelcerro | * For any additional information, do not hesitate to contact us
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22 | * at info AT gvsig.com, or visit our website www.gvsig.com.
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23 | 40435 | jjdelcerro | */
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24 | package org.gvsig.fmap.dal.feature.impl; |
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25 | |||
26 | import java.util.ArrayList; |
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27 | import java.util.ConcurrentModificationException; |
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28 | import java.util.Iterator; |
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29 | |||
30 | import org.gvsig.fmap.dal.exception.DataException; |
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31 | import org.gvsig.fmap.dal.feature.Feature; |
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32 | import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
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33 | import org.gvsig.fmap.dal.feature.FeatureIndex; |
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34 | import org.gvsig.fmap.dal.feature.FeatureIndexes; |
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35 | import org.gvsig.fmap.dal.feature.FeatureReference; |
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36 | import org.gvsig.fmap.dal.feature.FeatureSet; |
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37 | import org.gvsig.fmap.dal.feature.FeatureStore; |
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38 | import org.gvsig.fmap.dal.feature.FeatureType; |
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39 | import org.gvsig.fmap.dal.feature.exception.ConcurrentDataModificationException; |
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40 | import org.gvsig.fmap.geom.GeometryLocator; |
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41 | import org.gvsig.fmap.geom.primitive.Envelope; |
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42 | import org.gvsig.tools.dispose.DisposableIterator; |
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43 | import org.slf4j.Logger; |
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44 | import org.slf4j.LoggerFactory; |
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45 | |||
46 | /**
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47 | * DOCUMENT ME!
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48 | *
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49 | * @author Vicente Caballero Navarro
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50 | */
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51 | public class SpatialManager { |
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52 | private static final Logger LOG = LoggerFactory.getLogger(SpatialManager.class); |
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53 | |||
54 | protected boolean isFullExtentDirty = true; |
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55 | private FeatureStore featureStore;
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56 | private FeatureIndex featureIndex = null; |
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57 | private Envelope originalEnvelope = null; |
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58 | private Envelope fullEnvelope = null; |
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59 | private ArrayList feaOperation=new ArrayList(); |
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60 | private boolean noSpatialData = false; |
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61 | |||
62 | public SpatialManager(FeatureStore featureStore, Envelope originalEnvelope)
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63 | throws DataException {
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64 | this.featureStore=featureStore;
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65 | FeatureIndexes findexes=featureStore.getIndexes(); |
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66 | // Comprobamos si hay algun campo espacial a manejar
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67 | |||
68 | FeatureType fType = this.featureStore.getDefaultFeatureType();
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69 | // TODO Multy FType !!
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70 | if (fType.getDefaultGeometryAttributeIndex() < 0) { |
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71 | noSpatialData = true;
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72 | return;
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73 | } |
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74 | FeatureAttributeDescriptor attr = fType.getAttributeDescriptor(fType |
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75 | .getDefaultGeometryAttributeIndex()); |
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76 | this.originalEnvelope = originalEnvelope;
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77 | if ((originalEnvelope != null) && (!originalEnvelope.isEmpty())) { |
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78 | this.fullEnvelope = originalEnvelope.getGeometry().getEnvelope();
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79 | } else {
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80 | FeatureAttributeDescriptor geoAttr = fType.getAttributeDescriptor(fType.getDefaultGeometryAttributeIndex()); |
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81 | try {
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82 | this.fullEnvelope = GeometryLocator.getGeometryManager()
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83 | .createEnvelope(geoAttr.getGeometrySubType()); |
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84 | } catch (Exception e) { |
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85 | // FIXME Excpetion
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86 | throw new RuntimeException(e); |
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87 | } |
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88 | } |
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89 | if (!fType.hasOID()) {
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90 | return;
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91 | } |
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92 | |||
93 | Iterator iterator = findexes.iterator();
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94 | FeatureIndex index; |
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95 | while (iterator.hasNext()) {
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96 | index = (FeatureIndex) iterator.next(); |
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97 | if (index.getAttributeNames().size() == 1 |
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98 | && index.getAttributeNames().contains(attr.getName())) { |
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99 | featureIndex = index; |
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100 | break;
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101 | } |
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102 | } |
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103 | |||
104 | if (featureIndex instanceof DefaultFeatureIndex) { |
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105 | ((DefaultFeatureIndex) featureIndex).setValid(true);
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106 | } |
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107 | } |
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108 | |||
109 | |||
110 | |||
111 | /**
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112 | * DOCUMENT ME!
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113 | *
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114 | * @param feature DOCUMENT ME!
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115 | * @param oldFeature DOCUMENT ME!
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116 | */
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117 | public void updateFeature(Feature feature, Feature oldFeature) { |
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118 | if (noSpatialData) {
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119 | return;
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120 | } |
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121 | try {
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122 | if (featureIndex != null) { |
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123 | featureIndex.delete(oldFeature); |
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124 | } |
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125 | feaOperation.add(new FeatureOperation(((DefaultFeature) oldFeature)
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126 | .getReference(), FeatureOperation.DELETE)); |
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127 | if (featureIndex != null) { |
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128 | featureIndex.insert(feature); |
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129 | } |
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130 | feaOperation.add(new FeatureOperation(((DefaultFeature) feature)
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131 | .getReference(), FeatureOperation.INSERT)); |
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132 | } catch (DataException e) {
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133 | throw new RuntimeException("Exception updating feature: " |
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134 | + feature, e); |
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135 | } |
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136 | // } else {
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137 | // fullEnvelope.add(feature.getDefaultEnvelope());
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138 | isFullExtentDirty = true;
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139 | } |
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140 | |||
141 | /**
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142 | * DOCUMENT ME!
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143 | *
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144 | * @param feature DOCUMENT ME!
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145 | */
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146 | public void insertFeature(Feature feature) { |
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147 | if (noSpatialData) {
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148 | return;
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149 | } |
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150 | try {
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151 | if (featureIndex != null) { |
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152 | featureIndex.insert(feature); |
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153 | } |
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154 | feaOperation.add(new FeatureOperation(
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155 | ((DefaultFeature) feature).getReference(), |
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156 | FeatureOperation.INSERT)); |
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157 | } catch (DataException e) {
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158 | throw new RuntimeException("Exception inserting feature: " |
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159 | + feature, e); |
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160 | } |
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161 | isFullExtentDirty = true;
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162 | // } else if (!isFullExtentDirty) {
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163 | // fullEnvelope.add(feature.getDefaultEnvelope());
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164 | // }
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165 | } |
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166 | |||
167 | /**
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168 | * DOCUMENT ME!
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169 | *
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170 | * @param feature DOCUMENT ME!
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171 | */
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172 | public void deleteFeature(Feature feature) { |
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173 | if (noSpatialData) {
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174 | return;
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175 | } |
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176 | try {
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177 | if (featureIndex != null) { |
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178 | featureIndex.delete(feature); |
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179 | } |
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180 | feaOperation.add(new FeatureOperation(((DefaultFeature) feature)
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181 | .getReference(), FeatureOperation.DELETE)); |
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182 | } catch (DataException e) {
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183 | throw new RuntimeException("Exception deleting feature: " |
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184 | + feature, e); |
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185 | } |
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186 | isFullExtentDirty = true;
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187 | } |
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188 | |||
189 | public void clear() { |
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190 | } |
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191 | |||
192 | public Envelope getEnvelope() throws DataException { |
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193 | if (noSpatialData) {
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194 | return null; |
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195 | } |
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196 | if (!isFullExtentDirty){
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197 | return this.fullEnvelope; |
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198 | } |
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199 | |||
200 | // FIXME in every changes when anyone ask for envelope it was regenerated.
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201 | // if we assume that the envelope may not be the minimum in edit mode
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202 | // this call must be very much faster
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203 | |||
204 | |||
205 | FeatureAttributeDescriptor attr = featureStore.getDefaultFeatureType() |
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206 | .getAttributeDescriptor( |
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207 | featureStore.getDefaultFeatureType() |
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208 | .getDefaultGeometryAttributeIndex()); |
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209 | Envelope fullEnvelope = null;
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210 | |||
211 | FeatureSet set = null;
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212 | DisposableIterator iterator = null;
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213 | try {
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214 | set = featureStore.getFeatureSet(); |
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215 | iterator = set.fastIterator(); |
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216 | //First while to initialize the feature envelope
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217 | while (iterator.hasNext()) {
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218 | Feature feature = (Feature) iterator.next(); |
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219 | Envelope envelope = feature.getDefaultEnvelope(); |
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220 | if (envelope != null){ |
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221 | fullEnvelope = (Envelope)envelope.clone(); |
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222 | break;
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223 | } |
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224 | } |
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225 | //Second while to add new evelopes tho the full envelope
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226 | while (iterator.hasNext()) {
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227 | Feature feature = (Feature) iterator.next(); |
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228 | Envelope envelope = feature.getDefaultEnvelope(); |
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229 | if(envelope!=null){ |
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230 | fullEnvelope.add(envelope); |
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231 | } |
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232 | } |
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233 | //Creating an empty envelope by default
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234 | if (fullEnvelope == null){ |
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235 | fullEnvelope = GeometryLocator.getGeometryManager().createEnvelope( |
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236 | attr.getGeometrySubType()); |
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237 | } |
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238 | } catch (ConcurrentModificationException e) { |
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239 | throw e;
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240 | } catch (ConcurrentDataModificationException e) {
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241 | throw e;
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242 | } catch (Exception e) { |
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243 | throw new RuntimeException(e); |
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244 | } finally {
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245 | if (iterator != null) { |
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246 | iterator.dispose(); |
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247 | } |
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248 | if (set != null) { |
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249 | set.dispose(); |
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250 | } |
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251 | } |
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252 | this.fullEnvelope = fullEnvelope;
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253 | this.isFullExtentDirty = false; |
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254 | return fullEnvelope;
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255 | } |
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256 | |||
257 | |||
258 | |||
259 | public void cancelModifies() { |
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260 | if (noSpatialData) {
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261 | return;
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262 | } |
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263 | if (featureIndex != null){ |
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264 | for (int i = feaOperation.size()-1 ; i>=0 ; i--){ |
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265 | try {
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266 | FeatureOperation fo = (FeatureOperation) feaOperation.get(i); |
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267 | if (fo.getOperation() == FeatureOperation.INSERT){
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268 | featureIndex.delete(fo.getFeatureReference().getFeature()); |
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269 | }else if (fo.getOperation() == FeatureOperation.DELETE){ |
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270 | featureIndex.insert(fo.getFeatureReference().getFeature()); |
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271 | } |
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272 | } catch (DataException e) {
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273 | LOG.error("Error canceling the edition", e);
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274 | } |
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275 | } |
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276 | } |
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277 | if (originalEnvelope!=null){ |
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278 | 40934 | jldominguez | try {
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279 | fullEnvelope = (Envelope) originalEnvelope.clone(); |
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280 | } catch (CloneNotSupportedException e) { |
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281 | // Should never happen
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282 | LOG.error("While cloning envelope", e);
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283 | } |
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284 | 40435 | jjdelcerro | } else {
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285 | fullEnvelope = null;
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286 | } |
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287 | isFullExtentDirty = false;
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288 | } |
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289 | |||
290 | private class FeatureOperation{ |
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291 | final static int INSERT=0; |
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292 | final static int DELETE=1; |
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293 | private FeatureReference ref;
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294 | private int operation; |
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295 | public FeatureOperation(FeatureReference fe,int op){ |
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296 | ref=fe; |
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297 | operation=op; |
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298 | } |
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299 | public FeatureReference getFeatureReference() {
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300 | return ref;
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301 | } |
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302 | public void setFeatureReference(FeatureReference ref) { |
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303 | this.ref = ref;
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304 | } |
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305 | public int getOperation() { |
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306 | return operation;
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307 | } |
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308 | public void setOperation(int operation) { |
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309 | this.operation = operation;
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310 | } |
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311 | } |
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312 | |||
313 | } |