root / trunk / libraries / libFMap / src / com / iver / cit / gvsig / fmap / layers / VectorialDBAdapter.java @ 1773
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1 | 1100 | fjp | /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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2 | *
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3 | * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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4 | *
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5 | * This program is free software; you can redistribute it and/or
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6 | * modify it under the terms of the GNU General Public License
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7 | * as published by the Free Software Foundation; either version 2
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8 | * of the License, or (at your option) any later version.
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9 | *
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10 | * This program is distributed in the hope that it will be useful,
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11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 | * GNU General Public License for more details.
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14 | *
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15 | * You should have received a copy of the GNU General Public License
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16 | * along with this program; if not, write to the Free Software
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17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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18 | *
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19 | * For more information, contact:
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20 | *
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21 | * Generalitat Valenciana
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22 | * Conselleria d'Infraestructures i Transport
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23 | * Av. Blasco Ib??ez, 50
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24 | * 46010 VALENCIA
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25 | * SPAIN
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26 | *
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27 | * +34 963862235
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28 | * gvsig@gva.es
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29 | * www.gvsig.gva.es
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30 | *
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31 | * or
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32 | *
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33 | * IVER T.I. S.A
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34 | * Salamanca 50
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35 | * 46005 Valencia
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36 | * Spain
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37 | *
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38 | * +34 963163400
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39 | * dac@iver.es
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40 | */
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41 | 214 | fernando | package com.iver.cit.gvsig.fmap.layers; |
42 | |||
43 | 1691 | fjp | import java.awt.geom.Rectangle2D; |
44 | import java.sql.Connection; |
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45 | import java.sql.ResultSet; |
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46 | import java.sql.SQLException; |
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47 | import java.sql.Statement; |
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48 | |||
49 | import org.postgis.Geometry; |
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50 | import org.postgis.PGbox3d; |
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51 | import org.postgis.Point; |
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52 | |||
53 | import com.hardcode.driverManager.DriverLoadException; |
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54 | 1034 | vcaballero | import com.hardcode.gdbms.engine.data.DataSource; |
55 | 1691 | fjp | import com.hardcode.gdbms.engine.data.DataSourceFactory; |
56 | import com.hardcode.gdbms.engine.data.NoSuchTableException; |
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57 | import com.hardcode.gdbms.engine.data.ReadDriver; |
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58 | 651 | fernando | import com.iver.cit.gvsig.fmap.DriverException; |
59 | 1691 | fjp | import com.iver.cit.gvsig.fmap.core.FShape; |
60 | 305 | fjp | import com.iver.cit.gvsig.fmap.core.IGeometry; |
61 | 214 | fernando | import com.iver.cit.gvsig.fmap.drivers.DriverIOException; |
62 | import com.iver.cit.gvsig.fmap.drivers.VectorialDatabaseDriver; |
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63 | 1693 | fjp | import com.iver.cit.gvsig.fmap.drivers.jdbc.GeometryIterator; |
64 | import com.iver.cit.gvsig.fmap.drivers.jdbc.postgis.WKTParser; |
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65 | 1691 | fjp | import com.vividsolutions.jts.io.ParseException; |
66 | 214 | fernando | |
67 | 1034 | vcaballero | |
68 | |||
69 | 214 | fernando | /**
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70 | 1034 | vcaballero | * Adapta un driver de base de datos vectorial a la interfaz vectorial,
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71 | * manteniendo adem?s el estado necesario por una capa vectorial de base de
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72 | * datos (par?metros de la conexi?n)
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73 | 214 | fernando | */
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74 | public class VectorialDBAdapter extends VectorialAdapter { |
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75 | 1691 | fjp | private int numReg=-1; |
76 | private DataSource ds = null; |
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77 | 1034 | vcaballero | /**
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78 | * incrementa el contador de las veces que se ha abierto el fichero.
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79 | * Solamente cuando el contador est? a cero pide al driver que conecte con
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80 | * la base de datos
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81 | */
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82 | public void start() { |
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83 | } |
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84 | 214 | fernando | |
85 | 1034 | vcaballero | /**
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86 | * decrementa el contador de n?mero de aperturas y cuando llega a cero pide
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87 | * al driver que cierre la conexion con el servidor de base de datos
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88 | */
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89 | public void stop() { |
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90 | } |
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91 | 214 | fernando | |
92 | 1034 | vcaballero | /**
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93 | 1691 | fjp | * @return devuelve la Conexi?n a la base de datos, para que
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94 | * el usuario pueda hacer la consulta que quiera, si lo desea.
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95 | * Por ejemplo, esto puede ser ?til para abrir un cuadro de dialogo
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96 | * avanazado y lanzar peticiones del tipo "Devuelveme un buffer
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97 | * a las autopistas", y con el resultset que te venga, escribir
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98 | * un shape, o cosas as?.
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99 | 1034 | vcaballero | */
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100 | 1691 | fjp | public Connection getConnection() |
101 | { |
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102 | return ((VectorialDatabaseDriver)driver).getConnection();
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103 | 1034 | vcaballero | } |
104 | 1693 | fjp | public GeometryIterator getGeometryIterator(String sql) throws DriverException |
105 | { |
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106 | return ((VectorialDatabaseDriver)driver).getGeometryIterator(sql);
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107 | } |
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108 | 1691 | fjp | public String getFields() |
109 | { |
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110 | return ((VectorialDatabaseDriver)driver).getFields();
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111 | } |
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112 | public String getWhereClause() |
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113 | { |
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114 | return ((VectorialDatabaseDriver)driver).getWhereClause();
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115 | } |
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116 | public String getTableName() |
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117 | { |
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118 | return ((VectorialDatabaseDriver)driver).getTableName();
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119 | } |
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120 | |||
121 | |||
122 | 214 | fernando | /**
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123 | * @see com.iver.cit.gvsig.fmap.layers.ReadableVectorial#getShape(int)
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124 | */
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125 | 305 | fjp | public IGeometry getShape(int index) throws DriverIOException { |
126 | 1691 | fjp | IGeometry geom = null;
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127 | geom = ((VectorialDatabaseDriver)driver).getShape(index); |
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128 | return geom;
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129 | 214 | fernando | } |
130 | |||
131 | /**
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132 | 1691 | fjp | * @throws DriverException
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133 | 214 | fernando | * @see com.iver.cit.gvsig.fmap.layers.ReadableVectorial#getShapeCount()
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134 | */
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135 | public int getShapeCount() throws DriverIOException { |
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136 | 1691 | fjp | if (numReg == -1) |
137 | { |
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138 | try
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139 | { |
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140 | Statement s = ((VectorialDatabaseDriver)driver).getConnection().createStatement();
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141 | ResultSet r = s.executeQuery("SELECT COUNT(*) AS NUMREG FROM " + getTableName()); |
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142 | r.next(); |
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143 | numReg = r.getInt(1);
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144 | System.err.println("numReg = " + numReg); |
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145 | } |
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146 | catch (SQLException e) |
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147 | { |
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148 | throw new DriverIOException(e); |
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149 | } |
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150 | } |
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151 | |||
152 | return numReg;
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153 | 214 | fernando | } |
154 | |||
155 | /**
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156 | * @see com.iver.cit.gvsig.fmap.layers.ReadableVectorial#getFullExtent()
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157 | */
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158 | 1691 | fjp | public Rectangle2D getFullExtent() { |
159 | return ((VectorialDatabaseDriver)driver).getFullExtent();
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160 | 214 | fernando | } |
161 | |||
162 | 369 | fernando | |
163 | /**
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164 | * @see com.iver.cit.gvsig.fmap.layers.ReadableVectorial#getShapeType()
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165 | */
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166 | public int getShapeType() throws DriverIOException { |
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167 | 1691 | fjp | return FShape.MULTI;
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168 | 369 | fernando | } |
169 | 408 | fernando | |
170 | /**
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171 | * @see com.iver.cit.gvsig.fmap.layers.VectorialAdapter#getRecordset()
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172 | */
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173 | 1691 | fjp | public DataSource getRecordset(String name) throws DriverLoadException { |
174 | if (driver instanceof ReadDriver) |
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175 | { |
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176 | 1773 | fernando | LayerFactory.getDataSourceFactory().addDataSource((ReadDriver)driver, name); |
177 | 1691 | fjp | try {
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178 | 1773 | fernando | ds = LayerFactory.getDataSourceFactory().createRandomDataSource(name); |
179 | 1691 | fjp | } catch (NoSuchTableException e) {
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180 | throw new DriverLoadException(e); |
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181 | } |
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182 | } |
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183 | return ds;
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184 | 408 | fernando | } |
185 | 546 | fernando | |
186 | 214 | fernando | } |