svn-gvsig-desktop / trunk / extensions / extJDBC / src / com / iver / cit / gvsig / fmap / drivers / jdbc / mysql / MySQLDriver.java @ 3476
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1 | 2269 | fjp | /*
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2 | * Created on 04-mar-2005
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3 | *
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4 | * gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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5 | *
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6 | * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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7 | *
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8 | * This program is free software; you can redistribute it and/or
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9 | * modify it under the terms of the GNU General Public License
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10 | * as published by the Free Software Foundation; either version 2
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11 | * of the License, or (at your option) any later version.
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12 | *
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13 | * This program is distributed in the hope that it will be useful,
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14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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16 | * GNU General Public License for more details.
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17 | *
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18 | * You should have received a copy of the GNU General Public License
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19 | * along with this program; if not, write to the Free Software
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20 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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21 | *
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22 | * For more information, contact:
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23 | *
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24 | * Generalitat Valenciana
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25 | * Conselleria d'Infraestructures i Transport
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26 | * Av. Blasco Ib??ez, 50
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27 | * 46010 VALENCIA
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28 | * SPAIN
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29 | *
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30 | * +34 963862235
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31 | * gvsig@gva.es
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32 | * www.gvsig.gva.es
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33 | *
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34 | * or
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35 | *
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36 | * IVER T.I. S.A
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37 | * Salamanca 50
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38 | * 46005 Valencia
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39 | * Spain
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40 | *
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41 | * +34 963163400
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42 | * dac@iver.es
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43 | */
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44 | package com.iver.cit.gvsig.fmap.drivers.jdbc.mysql; |
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45 | |||
46 | import java.awt.geom.Rectangle2D; |
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47 | import java.sql.Connection; |
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48 | import java.sql.ResultSet; |
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49 | import java.sql.SQLException; |
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50 | import java.sql.Statement; |
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51 | |||
52 | 3251 | fjp | import org.apache.log4j.Logger; |
53 | 3095 | fjp | import org.cresques.cts.ICoordTrans; |
54 | |||
55 | 2269 | fjp | import com.hardcode.gdbms.engine.data.edition.DataWare; |
56 | 3095 | fjp | import com.iver.andami.messages.NotificationManager; |
57 | 2269 | fjp | import com.iver.cit.gvsig.fmap.DriverException; |
58 | import com.iver.cit.gvsig.fmap.core.IGeometry; |
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59 | 3251 | fjp | import com.iver.cit.gvsig.fmap.drivers.DBLayerDefinition; |
60 | 2269 | fjp | import com.iver.cit.gvsig.fmap.drivers.DefaultDBDriver; |
61 | import com.iver.cit.gvsig.fmap.drivers.DriverAttributes; |
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62 | import com.iver.cit.gvsig.fmap.drivers.IFeatureIterator; |
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63 | 3095 | fjp | import com.iver.cit.gvsig.fmap.drivers.WKTParser; |
64 | 2302 | fjp | import com.iver.cit.gvsig.fmap.drivers.jdbc.WKBParser; |
65 | 3251 | fjp | import com.iver.cit.gvsig.fmap.drivers.jdbc.postgis.PostGisDriver; |
66 | 3095 | fjp | import com.vividsolutions.jts.io.ParseException; |
67 | 2269 | fjp | |
68 | /**
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69 | * @author FJP
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70 | *
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71 | * TODO To change the template for this generated type comment go to
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72 | * Window - Preferences - Java - Code Generation - Code and Comments
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73 | */
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74 | public class MySQLDriver extends DefaultDBDriver { |
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75 | 3251 | fjp | private static Logger logger = Logger.getLogger(MySQLDriver.class.getName()); |
76 | 2269 | fjp | private WKBParser parser = new WKBParser(); |
77 | 3095 | fjp | private WKTParser wktParser = new WKTParser(); |
78 | 2269 | fjp | /* private int fetch_min=-1;
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79 | private int fetch_max=-1; */
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80 | private Statement st; |
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81 | 3268 | fjp | |
82 | 2269 | fjp | private String strAux; |
83 | 3095 | fjp | private String strEPSG = "-1"; |
84 | private String originalEPSG; |
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85 | 3251 | fjp | private String completeWhere; |
86 | 2269 | fjp | /**
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87 | 3251 | fjp | * Don't have information about working area
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88 | */
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89 | private String sqlOrig; |
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90 | |||
91 | |||
92 | /**
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93 | * Does have information about working area and order
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94 | */
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95 | private String sqlTotal; |
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96 | |||
97 | /**
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98 | 2269 | fjp | *
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99 | */
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100 | public MySQLDriver() {
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101 | } |
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102 | /* (non-Javadoc)
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103 | * @see com.iver.cit.gvsig.fmap.drivers.VectorialDriver#getDriverAttributes()
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104 | */
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105 | public DriverAttributes getDriverAttributes() {
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106 | return null; |
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107 | } |
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108 | |||
109 | /* (non-Javadoc)
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110 | * @see com.hardcode.driverManager.Driver#getName()
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111 | */
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112 | public String getName() { |
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113 | return "mySQL JDBC Driver"; |
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114 | } |
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115 | |||
116 | /**
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117 | * @see com.iver.cit.gvsig.fmap.layers.ReadableVectorial#getShape(int)
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118 | */
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119 | public IGeometry getShape(int index) { |
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120 | IGeometry geom = null;
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121 | boolean resul;
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122 | try {
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123 | // EL ABSOLUTE NO HACE QUE SE VUELVAN A LEER LAS
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124 | // FILAS, ASI QUE MONTAMOS ESTA HISTORIA PARA QUE
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125 | // LO HAGA
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126 | // System.out.println("getShape " + index);
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127 | /* if (index < fetch_min)
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128 | {
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129 | rs.close();
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130 | |||
131 | rs = st.executeQuery(sqlOrig);
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132 | fetch_min = 0;
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133 | fetch_max = rs.getFetchSize();
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134 | }
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135 | while (index >= fetch_max)
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136 | {
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137 | rs.last();
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138 | // forzamos una carga
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139 | rs.next();
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140 | fetch_min = fetch_max;
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141 | fetch_max = fetch_max + rs.getFetchSize();
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142 | // System.out.println("fetchSize = " + rs.getFetchSize() + " " + fetch_min + "-" + fetch_max);
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143 | }
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144 | rs.absolute(index+1 - fetch_min); */
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145 | rs.absolute(index+1);
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146 | // strAux = rs.getString(1);
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147 | // geom = parser.read(strAux);
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148 | byte[] data = rs.getBytes(1); |
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149 | geom = parser.parse(data); |
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150 | |||
151 | |||
152 | } catch (SQLException e) { |
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153 | e.printStackTrace(); |
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154 | } |
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155 | |||
156 | return geom;
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157 | } |
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158 | 3251 | fjp | |
159 | |||
160 | 2269 | fjp | /**
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161 | * @param conn
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162 | */
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163 | 2778 | fjp | /* (non-Javadoc)
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164 | * @see com.iver.cit.gvsig.fmap.drivers.VectorialJDBCDriver#setData(java.sql.Connection, java.lang.String, java.lang.String, java.lang.String, int)
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165 | */
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166 | 3251 | fjp | public void setData(Connection conn, DBLayerDefinition lyrDef) |
167 | 2269 | fjp | { |
168 | 3251 | fjp | this.conn = conn;
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169 | setLyrDef(lyrDef); |
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170 | 2269 | fjp | try {
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171 | 3095 | fjp | |
172 | // NO ESTA LISTO ESTO AUN EN mySQL, o no s? usuarlo getTableEPSG();
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173 | |||
174 | 3251 | fjp | sqlOrig = "SELECT " + getTotalFields() + " FROM " + getLyrDef().getTableName() |
175 | + " " + getLyrDef().getWhereClause();
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176 | completeWhere = getCompoundWhere(workingArea, strEPSG); |
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177 | 3268 | fjp | completeWhere = completeWhere ; |
178 | String sqlAux = sqlOrig + completeWhere + " ORDER BY " + getLyrDef().getFieldID(); |
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179 | 3251 | fjp | completeWhere = getLyrDef().getWhereClause() + completeWhere; |
180 | logger.info("Cadena SQL:" + sqlAux);
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181 | sqlTotal = sqlAux; |
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182 | |||
183 | |||
184 | 2269 | fjp | st = conn.createStatement(ResultSet.TYPE_FORWARD_ONLY, ResultSet.CONCUR_READ_ONLY); |
185 | 3251 | fjp | |
186 | rs = st.executeQuery(sqlTotal); |
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187 | 2269 | fjp | metaData = rs.getMetaData(); |
188 | // Le pegamos un primera pasada para poder relacionar
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189 | // un campo de identificador ?nico (parecido al OID en
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190 | // postgresql) con el ?ndice dentro del recordset.
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191 | // Esto cuando haya ediciones, no es v?lido, y hay
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192 | // que refrescarlo.
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193 | doRelateID_FID(); |
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194 | |||
195 | } catch (SQLException e) { |
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196 | 3095 | fjp | NotificationManager.addError("Error al conectar a la base de datos.",e);
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197 | 2269 | fjp | e.printStackTrace(); |
198 | } |
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199 | } |
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200 | |||
201 | /* (non-Javadoc)
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202 | * @see com.iver.cit.gvsig.fmap.drivers.VectorialDatabaseDriver#getGeometryIterator(java.lang.String)
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203 | */
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204 | public IFeatureIterator getFeatureIterator(String sql) throws com.iver.cit.gvsig.fmap.DriverException { |
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205 | Statement st;
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206 | MySqlFeatureIterator geomIterator = null;
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207 | try {
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208 | 3251 | fjp | logger.debug(sql); |
209 | 2269 | fjp | st = conn.createStatement(); |
210 | // st.setFetchSize(2000);
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211 | ResultSet rs = st.executeQuery(sql);
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212 | geomIterator = new MySqlFeatureIterator(rs);
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213 | 3347 | fjp | geomIterator.setLyrDef(getLyrDef()); |
214 | 2269 | fjp | } catch (SQLException e) { |
215 | e.printStackTrace(); |
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216 | throw new com.iver.cit.gvsig.fmap.DriverException(e); |
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217 | } |
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218 | |||
219 | return geomIterator;
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220 | } |
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221 | /* (non-Javadoc)
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222 | * @see com.iver.cit.gvsig.fmap.drivers.VectorialDatabaseDriver#getGeometryIterator(java.awt.geom.Rectangle2D)
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223 | */
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224 | public IFeatureIterator getFeatureIterator(Rectangle2D r, String strEPSG) throws DriverException { |
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225 | if (workingArea != null) |
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226 | 3251 | fjp | r = r.createIntersection(workingArea); |
227 | String sqlAux = sqlOrig + getCompoundWhere(r, strEPSG);
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228 | 3095 | fjp | |
229 | return getFeatureIterator(sqlAux);
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230 | } |
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231 | |||
232 | /**
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233 | * Le pasas el rect?ngulo que quieres pedir. La primera
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234 | * vez es el workingArea, y las siguientes una interseccion
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235 | * de este rectangulo con el workingArea
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236 | * @param r
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237 | * @param strEPSG
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238 | * @return
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239 | */
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240 | private String getCompoundWhere(Rectangle2D r, String strEPSG) { |
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241 | if (r==null) |
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242 | 3251 | fjp | return ""; |
243 | 3095 | fjp | |
244 | 2269 | fjp | double xMin = r.getMinX();
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245 | double yMin = r.getMinY();
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246 | double xMax = r.getMaxX();
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247 | double yMax = r.getMaxY();
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248 | |||
249 | String wktBox = "GeomFromText('LINESTRING(" + xMin + " " + yMin + ", " |
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250 | 3095 | fjp | + xMax + " " + yMin + ", " |
251 | + xMax + " " + yMax + ", " |
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252 | + xMin + " " + yMax + ")', " |
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253 | + strEPSG + ")";
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254 | 2269 | fjp | String sqlAux;
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255 | if (getWhereClause().startsWith("WHERE")) |
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256 | 3251 | fjp | sqlAux = " MBRIntersects(" + wktBox + ",ogc_geom)" ; |
257 | 2269 | fjp | else
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258 | 3251 | fjp | sqlAux = "WHERE MBRIntersects(" + wktBox + ",ogc_geom)" ; |
259 | 3095 | fjp | return sqlAux;
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260 | } |
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261 | 2269 | fjp | |
262 | 3095 | fjp | |
263 | 2269 | fjp | public void open() { |
264 | // TODO Auto-generated method stub
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265 | |||
266 | } |
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267 | /**
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268 | * @see com.iver.cit.gvsig.fmap.drivers.VectorialDatabaseDriver#getConnectionStringBeginning()
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269 | */
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270 | public String getConnectionStringBeginning() { |
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271 | return "jdbc:mysql:"; |
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272 | } |
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273 | |||
274 | static{
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275 | try {
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276 | Class.forName("com.mysql.jdbc.Driver"); |
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277 | } catch (ClassNotFoundException e) { |
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278 | throw new RuntimeException(e); |
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279 | } |
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280 | } |
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281 | |||
282 | /**
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283 | * @see com.iver.cit.gvsig.fmap.drivers.VectorialDatabaseDriver#getGeometryField(java.lang.String)
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284 | */
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285 | public String getGeometryField(String fieldName) { |
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286 | return "ASBINARY(" + fieldName +")"; |
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287 | } |
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288 | /**
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289 | * @see com.hardcode.gdbms.engine.data.driver.ObjectDriver#getPrimaryKeys()
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290 | */
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291 | public int[] getPrimaryKeys() throws com.hardcode.gdbms.engine.data.driver.DriverException { |
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292 | 3251 | fjp | return new int[]{getLyrDef().getIdFieldID() - 2}; |
293 | 2269 | fjp | } |
294 | /**
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295 | * @see com.iver.cit.gvsig.fmap.drivers.VectorialJDBCDriver#getDefaultPort()
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296 | */
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297 | public int getDefaultPort() { |
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298 | return 3306; |
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299 | } |
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300 | /**
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301 | * @see com.hardcode.gdbms.engine.data.driver.ObjectDriver#write(com.hardcode.gdbms.engine.data.edition.DataWare)
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302 | */
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303 | public void write(DataWare arg0) throws com.hardcode.gdbms.engine.data.driver.DriverException { |
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304 | // TODO Auto-generated method stub
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305 | |||
306 | } |
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307 | |||
308 | 3095 | fjp | private void getTableEPSG() |
309 | { |
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310 | try {
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311 | Statement stAux = conn.createStatement();
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312 | |||
313 | String sql = "SELECT SRID(ogc_geom) FROM " + |
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314 | getTableName() + " LIMIT 1;";
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315 | ResultSet rs = stAux.executeQuery(sql);
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316 | rs.next(); |
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317 | originalEPSG = "" + rs.getInt(1); |
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318 | rs.close(); |
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319 | } catch (SQLException e) { |
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320 | // TODO Auto-generated catch block
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321 | e.printStackTrace(); |
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322 | } |
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323 | |||
324 | } |
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325 | 3251 | fjp | public String getSqlTotal() |
326 | { |
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327 | return sqlTotal;
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328 | } |
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329 | /**
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330 | * @return Returns the completeWhere.
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331 | */
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332 | public String getCompleteWhere() { |
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333 | return completeWhere;
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334 | } |
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335 | 3095 | fjp | |
336 | 3268 | fjp | /* (non-Javadoc)
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337 | * @see com.iver.cit.gvsig.fmap.drivers.VectorialDatabaseDriver#getFeatureIterator(java.awt.geom.Rectangle2D, java.lang.String, java.lang.String[])
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338 | */
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339 | public IFeatureIterator getFeatureIterator(Rectangle2D r, String strEPSG, String[] alphaNumericFieldsNeeded) throws DriverException { |
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340 | if (workingArea != null) |
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341 | r = r.createIntersection(workingArea); |
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342 | |||
343 | String strAux = getGeometryField(getLyrDef().getFieldGeometry());
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344 | boolean found = false; |
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345 | if (alphaNumericFieldsNeeded != null) |
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346 | { |
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347 | for (int i=0; i< alphaNumericFieldsNeeded.length; i++) |
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348 | { |
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349 | strAux = strAux + ", " + alphaNumericFieldsNeeded[i];
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350 | if (alphaNumericFieldsNeeded[i].equals(getLyrDef().getFieldID()))
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351 | found = true;
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352 | } |
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353 | } |
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354 | // Nos aseguramos de pedir siempre el campo ID
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355 | if (found == false) |
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356 | strAux = strAux + ", " + getLyrDef().getFieldID();
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357 | |||
358 | String sqlProv = "SELECT " + strAux + " FROM " + getLyrDef().getTableName() |
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359 | + " " + getLyrDef().getWhereClause();
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360 | |||
361 | String sqlAux;
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362 | sqlAux = sqlProv + getCompoundWhere(r, strEPSG); |
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363 | |||
364 | System.out.println("SqlAux getFeatureIterator = " + sqlAux); |
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365 | |||
366 | return getFeatureIterator(sqlAux);
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367 | } |
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368 | 2269 | fjp | |
369 | 3268 | fjp | |
370 | 2269 | fjp | } |