svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.plugin / org.gvsig.daltransform.app / org.gvsig.daltransform.app.eventtheme / src / main / java / org / gvsig / app / eventtheme / dal / feature / EventThemeTransform.java @ 43215
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1 | 40558 | jjdelcerro | /**
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2 | * gvSIG. Desktop Geographic Information System.
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3 | 40435 | jjdelcerro | *
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4 | 40558 | jjdelcerro | * Copyright (C) 2007-2013 gvSIG Association.
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5 | *
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6 | 40435 | jjdelcerro | * 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 | 40558 | 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 | 40558 | jjdelcerro | *
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11 | 40435 | jjdelcerro | * 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 | 40558 | jjdelcerro | *
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16 | 40435 | jjdelcerro | * 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 | 40558 | jjdelcerro | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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19 | 40435 | jjdelcerro | * MA 02110-1301, USA.
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20 | 40558 | jjdelcerro | *
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21 | * 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 | /*
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25 | * AUTHORS (In addition to CIT):
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26 | * 2009 {Iver T.I.} {Task}
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27 | */
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28 | package org.gvsig.app.eventtheme.dal.feature; |
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29 | |||
30 | import java.util.Arrays; |
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31 | |||
32 | 40482 | jldominguez | import javax.swing.JOptionPane; |
33 | 43215 | jjdelcerro | import org.apache.commons.lang3.StringUtils; |
34 | 40482 | jldominguez | |
35 | 40435 | jjdelcerro | import org.cresques.cts.IProjection; |
36 | |||
37 | 40482 | jldominguez | import org.gvsig.app.ApplicationLocator; |
38 | 40435 | jjdelcerro | import org.gvsig.fmap.dal.DataStore; |
39 | import org.gvsig.fmap.dal.DataTypes; |
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40 | import org.gvsig.fmap.dal.exception.DataException; |
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41 | import org.gvsig.fmap.dal.exception.InitializeException; |
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42 | import org.gvsig.fmap.dal.feature.AbstractFeatureStoreTransform; |
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43 | import org.gvsig.fmap.dal.feature.EditableFeature; |
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44 | import org.gvsig.fmap.dal.feature.EditableFeatureAttributeDescriptor; |
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45 | import org.gvsig.fmap.dal.feature.EditableFeatureType; |
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46 | import org.gvsig.fmap.dal.feature.Feature; |
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47 | import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
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48 | import org.gvsig.fmap.dal.feature.FeatureSet; |
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49 | import org.gvsig.fmap.dal.feature.FeatureStore; |
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50 | import org.gvsig.fmap.dal.feature.FeatureType; |
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51 | 41295 | jjdelcerro | import org.gvsig.fmap.dal.feature.exception.SetReadOnlyAttributeException; |
52 | 41198 | jldominguez | import org.gvsig.fmap.geom.Geometry; |
53 | 40435 | jjdelcerro | import org.gvsig.fmap.geom.Geometry.SUBTYPES; |
54 | import org.gvsig.fmap.geom.Geometry.TYPES; |
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55 | import org.gvsig.fmap.geom.GeometryLocator; |
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56 | import org.gvsig.fmap.geom.GeometryManager; |
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57 | import org.gvsig.fmap.geom.exception.CreateEnvelopeException; |
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58 | import org.gvsig.fmap.geom.exception.CreateGeometryException; |
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59 | import org.gvsig.fmap.geom.primitive.Envelope; |
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60 | import org.gvsig.fmap.geom.primitive.Point; |
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61 | import org.gvsig.fmap.geom.type.GeometryTypeNotSupportedException; |
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62 | import org.gvsig.fmap.geom.type.GeometryTypeNotValidException; |
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63 | 40482 | jldominguez | import org.gvsig.i18n.Messages; |
64 | 40435 | jjdelcerro | import org.gvsig.tools.ToolsLocator; |
65 | import org.gvsig.tools.dispose.DisposableIterator; |
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66 | import org.gvsig.tools.dynobject.DynStruct; |
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67 | import org.gvsig.tools.dynobject.exception.DynFieldNotFoundException; |
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68 | import org.gvsig.tools.persistence.PersistenceManager; |
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69 | import org.gvsig.tools.persistence.PersistentState; |
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70 | import org.gvsig.tools.persistence.exception.PersistenceException; |
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71 | 40482 | jldominguez | import org.gvsig.tools.task.AbstractMonitorableTask; |
72 | import org.gvsig.tools.task.TaskStatusManager; |
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73 | import org.slf4j.Logger; |
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74 | import org.slf4j.LoggerFactory; |
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75 | 40435 | jjdelcerro | |
76 | /**
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77 | 43215 | jjdelcerro | * This class implements a transformation for a events theme. The original
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78 | * {@link DataStore} have to have a couple of attributes, one with the X
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79 | * coordinate and the second one with the Y coordinate. The result of the
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80 | * transformation is a {@link DataStore} that has a new geometric attribute and
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81 | * its value is a point with the coordinates specified in the original
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82 | * {@link DataStore}.
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83 | *
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84 | 40435 | jjdelcerro | * @author <a href="mailto:jpiera@gvsig.org">Jorge Piera</a>
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85 | */
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86 | 43215 | jjdelcerro | public class EventThemeTransform |
87 | extends AbstractFeatureStoreTransform {
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88 | 40435 | jjdelcerro | |
89 | 43215 | jjdelcerro | private static Logger logger = LoggerFactory.getLogger( |
90 | EventThemeTransform.class); |
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91 | |||
92 | 40435 | jjdelcerro | public static final String PERSISTENCE_DEFINITION_NAME = "EventThemeTransform"; |
93 | 40482 | jldominguez | /**
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94 | 43215 | jjdelcerro | * Max number of features used for initial estimation of extent. Many other
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95 | * features will be ignored simply with "iter.next()"
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96 | 40482 | jldominguez | */
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97 | public static int MAX_INI_FEATURES = 200; |
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98 | 40435 | jjdelcerro | |
99 | private String xFieldName = null; |
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100 | private String yFieldName = null; |
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101 | private String geometryFieldName = null; |
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102 | private IProjection projection = null; |
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103 | private FeatureType originalFeatureType;
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104 | 43215 | jjdelcerro | private GeometryManager geometryManager = GeometryLocator.getGeometryManager();
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105 | 40435 | jjdelcerro | private Envelope envelope;
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106 | |||
107 | public EventThemeTransform() {
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108 | super();
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109 | geometryManager = GeometryLocator.getGeometryManager(); |
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110 | } |
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111 | |||
112 | /**
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113 | 43215 | jjdelcerro | * This method initializes the transformation, sets the name of the
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114 | * parameters and sets the value of the {@link FeatureType} returned by the
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115 | * transformation.
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116 | *
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117 | * @param store The original store.
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118 | * @param geometryFieldName The field that contains the geometric attribute.
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119 | * @param xFieldName The field that contains the X coordinate.
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120 | * @param yFieldName The field that contains the Y coordinate.
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121 | * @param projection
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122 | 40435 | jjdelcerro | * @throws DataException
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123 | */
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124 | 43215 | jjdelcerro | public void setValues( |
125 | FeatureStore store, |
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126 | String geometryFieldName,
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127 | String xFieldName,
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128 | String yFieldName,
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129 | IProjection projection) throws DataException {
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130 | |||
131 | 40435 | jjdelcerro | setFeatureStore(store); |
132 | this.xFieldName = xFieldName;
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133 | this.yFieldName = yFieldName;
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134 | this.projection = projection;
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135 | 43215 | jjdelcerro | if( StringUtils.isEmpty(geometryFieldName) ) {
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136 | 40435 | jjdelcerro | this.geometryFieldName = "the_geom"; |
137 | 43215 | jjdelcerro | } else {
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138 | 40435 | jjdelcerro | this.geometryFieldName = geometryFieldName;
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139 | } |
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140 | 43215 | jjdelcerro | } |
141 | |||
142 | @Override
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143 | public void setUp() throws Exception { |
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144 | |||
145 | 40435 | jjdelcerro | this.originalFeatureType = this.getFeatureStore() |
146 | 43215 | jjdelcerro | .getDefaultFeatureType(); |
147 | 40435 | jjdelcerro | |
148 | EditableFeatureType type = originalFeatureType.getEditable(); |
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149 | 43215 | jjdelcerro | if( type.get(this.geometryFieldName) == null ) { |
150 | EditableFeatureAttributeDescriptor attributeDescriptor = type.add(this.geometryFieldName, DataTypes.GEOMETRY);
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151 | 40435 | jjdelcerro | try {
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152 | attributeDescriptor.setGeometryType(geometryManager.getGeometryType(TYPES.POINT, SUBTYPES.GEOM2D)); |
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153 | } catch (GeometryTypeNotSupportedException e) {
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154 | throw new InitializeException(e); |
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155 | } catch (GeometryTypeNotValidException e) {
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156 | throw new InitializeException(e); |
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157 | 43215 | jjdelcerro | } |
158 | 40435 | jjdelcerro | attributeDescriptor.setSRS(projection); |
159 | } |
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160 | |||
161 | try {
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162 | /*
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163 | * creates and updates envelope with all features
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164 | */
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165 | 43215 | jjdelcerro | initEnvelope(this.getFeatureStore(), MAX_INI_FEATURES);
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166 | 40435 | jjdelcerro | } catch (CreateEnvelopeException e) {
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167 | throw new org.gvsig.fmap.dal.feature.exception.CreateGeometryException(e); |
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168 | } |
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169 | |||
170 | type.setDefaultGeometryAttributeName(this.geometryFieldName);
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171 | 43215 | jjdelcerro | FeatureType[] types = new FeatureType[]{type.getNotEditableCopy()}; |
172 | 40435 | jjdelcerro | setFeatureTypes(Arrays.asList(types), types[0]); |
173 | } |
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174 | |||
175 | /**
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176 | * creates and updates envelope with all features
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177 | 43215 | jjdelcerro | *
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178 | 40435 | jjdelcerro | */
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179 | 40482 | jldominguez | private void initEnvelope(FeatureStore fsto, int max_feats) throws CreateEnvelopeException { |
180 | 43215 | jjdelcerro | |
181 | 40435 | jjdelcerro | envelope = geometryManager.createEnvelope(SUBTYPES.GEOM2D); |
182 | FeatureSet fset = null;
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183 | DisposableIterator diter = null;
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184 | Feature feat = null;
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185 | try {
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186 | fset = fsto.getFeatureSet(); |
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187 | diter = fset.fastIterator(); |
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188 | 43215 | jjdelcerro | |
189 | 40482 | jldominguez | // int count = 0;
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190 | int countused = 0; |
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191 | int nextwait = 1; |
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192 | int index = 0; |
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193 | 43215 | jjdelcerro | |
194 | while( diter.hasNext() && (countused < max_feats) ) {
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195 | |||
196 | 40435 | jjdelcerro | feat = (Feature) diter.next(); |
197 | 40482 | jldominguez | /*
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198 | * This loop will use about 70 features from the first
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199 | * 3000 features, more and more separated each time.
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200 | * Something like:
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201 | *
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202 | * 1st, 2nd ,3rd, 5th, 8th, 15, 25, 40, 100, 300...
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203 | *
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204 | * Other features are ignored with diter.next().
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205 | * That causes an acceptable behavior even if the store
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206 | * is very large.
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207 | *
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208 | * Afterwards, the extent is updated while drawing,
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209 | * so it's not very important.
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210 | */
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211 | index++; |
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212 | 43215 | jjdelcerro | if( index == nextwait ) {
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213 | index = 0;
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214 | /*
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215 | 40482 | jldominguez | * This causes that the first 5 features
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216 | * will always be used.
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217 | 43215 | jjdelcerro | */
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218 | if( countused > 5 ) { |
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219 | nextwait++; |
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220 | } |
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221 | this.updateEnvelope(feat);
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222 | countused++; |
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223 | 40482 | jldominguez | } |
224 | // count++;
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225 | 40435 | jjdelcerro | } |
226 | 43215 | jjdelcerro | |
227 | 40435 | jjdelcerro | diter.dispose(); |
228 | 43215 | jjdelcerro | |
229 | 40435 | jjdelcerro | } catch (Exception dex) { |
230 | throw new CreateEnvelopeException(SUBTYPES.GEOM2D, dex); |
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231 | } |
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232 | } |
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233 | 43215 | jjdelcerro | |
234 | 40482 | jldominguez | public void setEnvelope(Envelope env) { |
235 | 43215 | jjdelcerro | this.envelope = env;
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236 | 40482 | jldominguez | } |
237 | 40435 | jjdelcerro | |
238 | 40482 | jldominguez | /*
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239 | * Currently not used
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240 | */
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241 | private void launchFullExtentThread(DisposableIterator diter) { |
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242 | |||
243 | 43215 | jjdelcerro | ComputeExtentTask task = new ComputeExtentTask(diter, this); |
244 | task.start(); |
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245 | } |
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246 | |||
247 | @Override
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248 | 40435 | jjdelcerro | public void applyTransform(Feature source, EditableFeature target) |
249 | 43215 | jjdelcerro | throws DataException {
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250 | |||
251 | 40435 | jjdelcerro | this.copySourceToTarget(source, target);
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252 | |||
253 | 41198 | jldominguez | try {
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254 | 43215 | jjdelcerro | |
255 | Geometry point; |
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256 | 41198 | jldominguez | Object xval = source.get(xFieldName);
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257 | Object yval = source.get(yFieldName);
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258 | 43215 | jjdelcerro | if( xval == null || yval == null ) { |
259 | 41198 | jldominguez | logger.info("Found row with null coordinates in event theme (created null geometry)");
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260 | 41610 | jjdelcerro | target.set(geometryFieldName, null);
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261 | 43215 | jjdelcerro | target.setDefaultGeometry(null);
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262 | 41198 | jldominguez | } else {
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263 | point = geometryManager.createPoint( |
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264 | new Double(xval.toString()), |
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265 | new Double(yval.toString()), |
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266 | SUBTYPES.GEOM2D); |
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267 | target.set(geometryFieldName, point); |
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268 | 43215 | jjdelcerro | target.setDefaultGeometry(point); |
269 | 41198 | jldominguez | envelope.add(point.getEnvelope()); |
270 | } |
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271 | 43215 | jjdelcerro | } catch (SetReadOnlyAttributeException e1) {
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272 | 41295 | jjdelcerro | // Do nothing
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273 | 43215 | jjdelcerro | |
274 | 41198 | jldominguez | } catch (Exception e) { |
275 | throw new org.gvsig.fmap.dal.feature.exception.CreateGeometryException( |
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276 | TYPES.POINT, SUBTYPES.GEOM2D, e); |
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277 | 43215 | jjdelcerro | } |
278 | |||
279 | 40435 | jjdelcerro | } |
280 | 43215 | jjdelcerro | |
281 | 40435 | jjdelcerro | /**
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282 | * Used internally to initialize envelope
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283 | 43215 | jjdelcerro | *
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284 | 40435 | jjdelcerro | */
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285 | private void updateEnvelope(Feature feat) throws CreateGeometryException { |
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286 | |||
287 | Point point = geometryManager.createPoint(
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288 | new Double(feat.get(xFieldName).toString()), |
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289 | new Double(feat.get(yFieldName).toString()), |
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290 | SUBTYPES.GEOM2D); |
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291 | envelope.add(point.getEnvelope()); |
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292 | } |
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293 | |||
294 | /**
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295 | * @param source
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296 | * @param target
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297 | */
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298 | private void copySourceToTarget(Feature source, EditableFeature target) { |
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299 | FeatureAttributeDescriptor attr, attrTrg; |
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300 | FeatureType ftSrc = source.getType(); |
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301 | FeatureType ftTrg = target.getType(); |
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302 | |||
303 | 43215 | jjdelcerro | for( int i = 0; i < source.getType().size(); i++ ) { |
304 | 40435 | jjdelcerro | attr = ftSrc.getAttributeDescriptor(i); |
305 | 43215 | jjdelcerro | if( ftTrg.getIndex(attr.getName()) > -1 ) { |
306 | 40435 | jjdelcerro | try {
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307 | target.set(attr.getName(), source.get(i)); |
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308 | } catch (IllegalArgumentException e) { |
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309 | attrTrg = ftTrg.getAttributeDescriptor(attr.getName()); |
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310 | target.set(attrTrg.getIndex(), attrTrg.getDefaultValue()); |
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311 | } |
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312 | |||
313 | } |
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314 | } |
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315 | |||
316 | } |
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317 | |||
318 | 43215 | jjdelcerro | @Override
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319 | 40435 | jjdelcerro | public FeatureType getSourceFeatureTypeFrom(FeatureType targetFeatureType) {
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320 | return this.originalFeatureType; |
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321 | } |
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322 | |||
323 | 43215 | jjdelcerro | @Override
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324 | 40435 | jjdelcerro | public boolean isTransformsOriginalValues() { |
325 | return true; |
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326 | } |
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327 | |||
328 | public static void registerPersistent() { |
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329 | PersistenceManager persistenceManager = ToolsLocator.getPersistenceManager(); |
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330 | |||
331 | if( persistenceManager.getDefinition(AbstractFeatureStoreTransform.class) == null ) { |
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332 | AbstractFeatureStoreTransform.registerPersistent(); |
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333 | } |
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334 | |||
335 | DynStruct definition = persistenceManager.getDefinition(PERSISTENCE_DEFINITION_NAME); |
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336 | |||
337 | 43215 | jjdelcerro | if( definition == null ) { |
338 | 40435 | jjdelcerro | definition = persistenceManager.addDefinition( |
339 | EventThemeTransform.class, |
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340 | PERSISTENCE_DEFINITION_NAME, |
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341 | "EventThemeTransform Persistence definition",
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342 | 43215 | jjdelcerro | null,
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343 | 40435 | jjdelcerro | null
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344 | ); |
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345 | definition.extend(PersistenceManager.PERSISTENCE_NAMESPACE, |
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346 | ABSTRACT_FEATURESTORE_DYNCLASS_NAME); |
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347 | |||
348 | definition.addDynFieldString("geometryFieldName").setMandatory(true); |
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349 | definition.addDynFieldString("xFieldName").setMandatory(true); |
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350 | definition.addDynFieldString("yFieldName").setMandatory(true); |
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351 | definition.addDynFieldObject("projection").setType(DataTypes.CRS);
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352 | } |
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353 | } |
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354 | |||
355 | 43215 | jjdelcerro | @Override
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356 | 40435 | jjdelcerro | public void saveToState(PersistentState state) throws PersistenceException { |
357 | super.saveToState(state);
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358 | state.set("geometryFieldName", this.geometryFieldName); |
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359 | state.set("xFieldName", this.xFieldName); |
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360 | state.set("yFieldName", this.yFieldName); |
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361 | 43215 | jjdelcerro | state.set("projection", this.projection); |
362 | 40435 | jjdelcerro | } |
363 | |||
364 | 43215 | jjdelcerro | @Override
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365 | 40435 | jjdelcerro | public void loadFromState(PersistentState state) |
366 | 43215 | jjdelcerro | throws PersistenceException {
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367 | super.loadFromState(state);
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368 | geometryFieldName = state.getString("geometryFieldName");
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369 | xFieldName = state.getString("xFieldName");
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370 | yFieldName = state.getString("yFieldName");
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371 | projection = (IProjection) state.get("projection");
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372 | 40435 | jjdelcerro | } |
373 | |||
374 | 43215 | jjdelcerro | @Override
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375 | 40435 | jjdelcerro | public Object getDynValue(String name) throws DynFieldNotFoundException { |
376 | 43215 | jjdelcerro | if( DataStore.METADATA_CRS.equals(name) ) {
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377 | 40435 | jjdelcerro | return projection;
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378 | 43215 | jjdelcerro | } else if( DataStore.METADATA_ENVELOPE.equals(name) ) { |
379 | 40435 | jjdelcerro | return envelope;
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380 | } |
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381 | return null; |
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382 | } |
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383 | |||
384 | 43215 | jjdelcerro | @Override
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385 | 40435 | jjdelcerro | public boolean hasDynValue(String name) { |
386 | 43215 | jjdelcerro | return ((DataStore.METADATA_CRS.equals(name))
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387 | || (DataStore.METADATA_ENVELOPE.equals(name))); |
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388 | } |
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389 | |||
390 | 40482 | jldominguez | /**
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391 | 43215 | jjdelcerro | *
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392 | 40482 | jldominguez | * A thread to compute the true extent (in case it has a lot of features)
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393 | * Currently not used.
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394 | 43215 | jjdelcerro | *
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395 | 40482 | jldominguez | * @author jldominguez
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396 | 43215 | jjdelcerro | *
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397 | 40482 | jldominguez | * @deprecated This is not used because it causes issues with
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398 | 43215 | jjdelcerro | * ConsurrentModificationException because the store is notified of a change
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399 | * (the transformation). Anyway, this is not very important I think.
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400 | 40482 | jldominguez | */
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401 | 43215 | jjdelcerro | private class ComputeExtentTask |
402 | extends AbstractMonitorableTask {
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403 | |||
404 | private DisposableIterator disp_iter = null; |
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405 | private EventThemeTransform tra_toupdate = null; |
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406 | |||
407 | public ComputeExtentTask(DisposableIterator diter, EventThemeTransform ettra) {
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408 | /*
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409 | 40482 | jldominguez | * Auto-added by task manager
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410 | 43215 | jjdelcerro | */
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411 | super(Messages.getText("_Extent_of_event_theme"), true); |
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412 | disp_iter = diter; |
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413 | tra_toupdate = ettra; |
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414 | } |
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415 | 40482 | jldominguez | |
416 | 43215 | jjdelcerro | public void run() { |
417 | |||
418 | Envelope env = null;
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419 | Feature feat = null;
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420 | Point point = null; |
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421 | int count = 99; |
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422 | |||
423 | try {
|
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424 | while( disp_iter.hasNext() ) {
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425 | 40482 | jldominguez | feat = (Feature) disp_iter.next(); |
426 | point = geometryManager.createPoint( |
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427 | 43215 | jjdelcerro | Double.parseDouble(feat.get(xFieldName).toString()),
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428 | Double.parseDouble(feat.get(yFieldName).toString()),
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429 | SUBTYPES.GEOM2D); |
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430 | if( env == null ) { |
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431 | env = (Envelope) point.getEnvelope().clone(); |
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432 | 40482 | jldominguez | } else {
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433 | 43215 | jjdelcerro | env.add(point.getEnvelope()); |
434 | 40482 | jldominguez | } |
435 | count++; |
||
436 | Thread.sleep(10); |
||
437 | 43215 | jjdelcerro | if( count % 100 == 0 ) { |
438 | System.out.println("COUNT = " + count); |
||
439 | 40482 | jldominguez | } |
440 | } |
||
441 | 43215 | jjdelcerro | } catch (Exception exc) { |
442 | |||
443 | ApplicationLocator.getManager().message( |
||
444 | Messages.getText("_Error_while_getting_extent"),
|
||
445 | JOptionPane.ERROR_MESSAGE);
|
||
446 | logger.info("Error while getting extent in thread.", exc);
|
||
447 | |||
448 | } |
||
449 | |||
450 | disp_iter.dispose(); |
||
451 | // =================
|
||
452 | if( env != null ) { |
||
453 | Envelope curr_env = (Envelope) tra_toupdate.getDynValue( |
||
454 | DataStore.METADATA_ENVELOPE); |
||
455 | curr_env.add(env); |
||
456 | } |
||
457 | // =========== End
|
||
458 | TaskStatusManager man = this.getTaskStatus().getManager();
|
||
459 | man.remove(this.getTaskStatus());
|
||
460 | } |
||
461 | |||
462 | 40482 | jldominguez | } |
463 | 40435 | jjdelcerro | } |