root / trunk / extensions / extJDBC / src / com / iver / cit / gvsig / fmap / drivers / jdbc / postgis / testPostGis.java @ 11971
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/*
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* Created on 03-mar-2005
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*
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* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* For more information, contact:
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*
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* Generalitat Valenciana
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* Conselleria d'Infraestructures i Transport
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* Av. Blasco Ib??ez, 50
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* 46010 VALENCIA
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* SPAIN
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*
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* +34 963862235
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* gvsig@gva.es
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* www.gvsig.gva.es
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*
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* or
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*
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* IVER T.I. S.A
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* Salamanca 50
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* 46005 Valencia
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* Spain
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*
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* +34 963163400
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* dac@iver.es
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*/
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package com.iver.cit.gvsig.fmap.drivers.jdbc.postgis; |
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import java.awt.geom.Rectangle2D; |
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import java.nio.Buffer; |
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import java.nio.ByteBuffer; |
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import java.nio.ByteOrder; |
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import java.sql.Connection; |
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import java.sql.Date; |
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import java.sql.DriverManager; |
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import java.sql.PreparedStatement; |
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import java.sql.ResultSet; |
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import java.sql.SQLException; |
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import java.sql.Statement; |
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import java.sql.Time; |
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import java.sql.Timestamp; |
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import java.util.Calendar; |
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import java.util.Enumeration; |
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import java.util.GregorianCalendar; |
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import org.cresques.cts.IProjection; |
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import org.postgresql.fastpath.Fastpath; |
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import com.iver.cit.gvsig.fmap.core.ICanReproject; |
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import com.iver.cit.gvsig.fmap.core.IFeature; |
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import com.iver.cit.gvsig.fmap.core.IGeometry; |
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import com.iver.cit.gvsig.fmap.crs.CRSFactory; |
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import com.iver.cit.gvsig.fmap.drivers.ConnectionFactory; |
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import com.iver.cit.gvsig.fmap.drivers.ConnectionJDBC; |
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import com.iver.cit.gvsig.fmap.drivers.DBLayerDefinition; |
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import com.iver.cit.gvsig.fmap.drivers.IConnection; |
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import com.iver.cit.gvsig.fmap.drivers.IFeatureIterator; |
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import com.iver.cit.gvsig.fmap.drivers.IVectorialDatabaseDriver; |
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import com.iver.cit.gvsig.fmap.drivers.IVectorialJDBCDriver; |
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import com.iver.cit.gvsig.fmap.drivers.WKBParser2; |
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import com.iver.cit.gvsig.fmap.layers.FLayer; |
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import com.iver.cit.gvsig.fmap.layers.FLyrVect; |
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import com.iver.cit.gvsig.fmap.layers.ISpatialDB; |
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import com.iver.cit.gvsig.fmap.layers.LayerFactory; |
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/**
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* @author FJP
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*
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* TODO To change the template for this generated type comment go to
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* Window - Preferences - Java - Code Generation - Code and Comments
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*/
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public class testPostGis { |
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public static void main(String[] args) |
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{ |
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/* System.err.println("dburl has the following format:");
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System.err.println("jdbc:postgresql://HOST:PORT/DATABASENAME");
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System.err.println("tablename is 'jdbc_test' by default.");
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System.exit(1); */
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String dburl = "jdbc:postgresql://localhost/latin1"; |
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String dbuser = "postgres"; |
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String dbpass = "aquilina"; |
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// String dburl = "jdbc:postgresql://192.168.0.217/postgis";
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// String dbuser = "gvsig";
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// String dbpass = "";
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// String dbtable = "carreteras_lin_5k_t10";
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String dbtable = "VIAS"; |
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Connection conn = null; |
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System.out.println("Creating JDBC connection..."); |
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try {
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Class.forName("org.postgresql.Driver"); |
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Enumeration enumDrivers = DriverManager.getDrivers(); |
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while (enumDrivers.hasMoreElements())
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{ |
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System.out.println("Driver " + enumDrivers.nextElement().toString()); |
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} |
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conn = DriverManager.getConnection(dburl, dbuser, dbpass);
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conn.setAutoCommit(false);
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long t1 = System.currentTimeMillis(); |
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test1(conn, dburl, dbuser, dbpass, dbtable); |
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long t2 = System.currentTimeMillis(); |
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System.out.println("Tiempo de consulta1:" + (t2 - t1) + " milisegundos"); |
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/* FLyrVect lyr = initLayerPostGIS();
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t1 = System.currentTimeMillis();
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test4(lyr);
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t2 = System.currentTimeMillis();
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System.out.println("Tiempo de consulta2:" + (t2 - t1) + " milisegundos"); */
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conn.close(); |
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} catch (ClassNotFoundException e) { |
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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} catch (SQLException e) { |
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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} |
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} |
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private static void test1(Connection conn, String dburl, String dbuser, String dbpass, String dbtable) |
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{ |
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try
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{ |
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// magic trickery to be pgjdbc 7.2 compatible
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// This works due to the late binding of data types in most java VMs. As
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// this is more a demo source than a real-world app, we can risk this
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// problem.
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/* if (conn.getClass().getName().equals("org.postgresql.jdbc2.Connection")) {
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((org.postgresql.Connection) conn).addDataType("geometry", "org.postgis.PGgeometry");
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((org.postgresql.Connection) conn).addDataType("box3d", "org.postgis.PGbox3d");
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} else {
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((org.postgresql.PGConnection) conn).addDataType("geometry", "org.postgis.PGgeometry");
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((org.postgresql.PGConnection) conn).addDataType("box3d", "org.postgis.PGbox3d");
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} */
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/*
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* Create a statement and execute a select query.
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*/
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// String strSQL = "select AsBinary(the_geom) as geom, nom_provin from " + dbtable;
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// String strSQL = "select ASBINARY(the_geom) as geom, gid from " + dbtable;
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// String strSQL = "select ASBINARY(geometria) as geom, fecha_inicio_evento, fecha_fin_evento, date1, time1 from " + dbtable;
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String strSQL = "select ASBINARY(the_geom) as geom from " + dbtable; |
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// strSQL = "select ASTEXT(the_geom), nom_provin as geom from " + dbtable;
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/* String strSQL = "SELECT gid, rd_3, rd_5, rd_6, rd_10, rd_11, rd_12, rd_13, rd_14,";
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strSQL = strSQL + " rd_15, rd_16, kilometers, cost, metros, AsText(force_2d(the_geom)) FROM vias";
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strSQL = strSQL + " WHERE TRUE";
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*/
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// PreparedStatement s = conn.prepareStatement(strSQL);
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Statement s = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY); |
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// s.execute("begin");
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// Statement s = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY);
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// s.setFetchSize(5);
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int fetchSize = 150000; |
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s.execute("declare wkb_cursor binary cursor for " + strSQL);
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ResultSet r = s.executeQuery("fetch forward " + fetchSize + " in wkb_cursor"); |
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// /// ResultSet r = s.executeQuery("fetch forward all in wkb_cursor");
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// String strSQL2 = "select AsBinary(the_geom) as geom, nom_provin from " + dbtable;
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// PreparedStatement ps = conn.prepareStatement(strSQL2);
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// ResultSet r = ps.executeQuery();
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// ResultSet r = s.executeQuery(strSQL);
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WKBParser2 parser2 = new WKBParser2();
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// WKBParser parser = new WKBParser();
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long id=0; |
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/* for (int i=1; i< 100; i++)
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{
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r.absolute(i);
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System.out.println("Row " + i + ":" + r.getString(2));
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}
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r.beforeFirst();
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for (int i=1; i< 100; i++)
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{
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r.absolute(i);
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System.out.println("Row " + i + ":" + r.getString(2));
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} */
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Timestamp date1 = new Timestamp(2006-1900, 8, 5, 16, 0, 0, 0); |
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long time1 = date1.getTime();
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System.out.println("time1 = " + time1 + " data1 + " + date1); |
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Timestamp date2 = new Timestamp(2006-1900, 8, 4, 9, 0, 0, 0); |
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long time2 = date2.getTime();
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System.out.println("time2 = " + time2 + " data2 + " + date2); |
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double num_msSecs2000 = 9.466776E11; |
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while( r.next() )
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{ |
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/*
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* Retrieve the geometry as an object then cast it to the geometry type.
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* Print things out.
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*/
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// Object obj = r.getObject(2);
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byte[] arrayByte = r.getBytes(1); |
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// IGeometry gp = parser.parse(arrayByte);
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IGeometry gp2 = parser2.parse(arrayByte); |
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// String strAux = r.getString(5);
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// System.out.println("Straux = " + strAux);
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// long asLong = r.getLong(2);
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// double asDouble = r.getDouble(2);
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// Date asDate = r.getDate(2);
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// byte[] data1 = r.getBytes(2);
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// byte[] data2 = r.getBytes(3);
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// byte[] bdate1 = r.getBytes(4);
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// byte[] btime1 = r.getBytes(5);
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// ByteBuffer buf = ByteBuffer.wrap(data1);
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// ByteBuffer bufDate1 = ByteBuffer.wrap(bdate1);
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// ByteBuffer bufTime1 = ByteBuffer.wrap(btime1);
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//
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// long daysAfter2000 = bufDate1.getInt() + 1;
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// long msecs = daysAfter2000*24*60*60*1000;
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// long real_msecs_date1 = (long) (num_msSecs2000 + msecs);
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// Date realDate1 = new Date(real_msecs_date1);
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// System.err.println("Date1 = " + realDate1 + " diff = " + (real_msecs_date1 - num_msSecs2000));
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//
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// Calendar cal = new GregorianCalendar();
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// cal.setTimeInMillis(0);
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// // bufTime1.order(ByteOrder.LITTLE_ENDIAN);
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// long microsecs = bufTime1.getLong();
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// long real_msecs = microsecs - 3600000; // le quitamos una hora.
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// cal.setTimeInMillis(real_msecs);
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// long milis = cal.getTimeInMillis();
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// Time mytime1 = new Time(real_msecs);
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// Date mytime1asdate = new Date(real_msecs);
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// System.err.println("microsecs = " + microsecs + " TIME1 = " + mytime1);
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// System.err.println("microsecs = " + (long)num_msSecs2000 + " TIME1ASDATE = " + mytime1asdate);
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//
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//
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// double n1 = buf.getDouble(0); // num segs after 2000
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//// Timestamp ts2000 = new Timestamp(2000-1900, 0, 1, 0, 0 , 0, 0);
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//// int offset = ts2000.getTimezoneOffset() * 60 * 1000;
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//
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//// double num_msSecs2000 = ts2000.getTime() + offset;
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// long real_msecs2 = (long) (num_msSecs2000 + n1*1000);
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// Timestamp real = new Timestamp(real_msecs2);
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//
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// // int id = r.getInt(2);
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// System.out.println("Fila " + id + ": fecha:" + real);
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// id++;
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// // Geometry regeom = PGgeometry.geomFromString(obj.toString());
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//
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// // PGgeometry geom = (PGgeometry)obj;
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// // int id = r.getInt(2);
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// // System.out.println("Row " + id + ":" + strAux);
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// // System.out.println(geom.toString());
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// // System.out.println("provin=" + r.getString(2));
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// /* if ((id % fetchSize) == 0)
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// {
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// r = s.executeQuery("fetch forward " + fetchSize + " in wkb_cursor");
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// } */
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} |
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// s.execute("end");
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s.close(); |
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} |
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catch( Exception e ) |
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{ |
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e.printStackTrace(); |
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} |
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} |
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private static void test2(Connection conn, String dburl, String dbuser, String dbpass, String dbtable) |
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{ |
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try
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{ |
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/*
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* Create a statement and execute a select query.
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*/
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String strSQL = "select gid from " + dbtable; |
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PreparedStatement s = conn.prepareStatement(strSQL);
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// Statement s = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY);
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int fetchSize = 5000; |
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ResultSet r = s.executeQuery(strSQL);
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int id=0; |
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while( r.next() )
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{ |
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String strAux = r.getString(1); |
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id++; |
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// System.out.println("Row " + id + ":" + strAux);
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} |
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s.close(); |
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} |
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catch( Exception e ) |
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{ |
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e.printStackTrace(); |
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} |
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} |
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private static void test3(Connection conn, String dburl, String dbuser, String dbpass, String dbtable) |
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{ |
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try
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{ |
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Fastpath fp; |
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if (conn.getClass().getName().equals("org.postgresql.jdbc2.Connection")) { |
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// ((org.postgresql.Connection) conn).addDataType("geometry", "org.postgis.PGgeometry");
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// ((org.postgresql.Connection) conn).addDataType("box3d", "org.postgis.PGbox3d");
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} else {
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((org.postgresql.PGConnection) conn).addDataType("geometry", "org.postgis.PGgeometry"); |
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((org.postgresql.PGConnection) conn).addDataType("box3d", "org.postgis.PGbox3d"); |
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fp = ((org.postgresql.PGConnection) conn).getFastpathAPI(); |
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} |
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/*
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* Create a statement and execute a select query.
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*/
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String strSQL = "select * from " + dbtable; |
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// String strSQL = "select ASBINARY(the_geom) as geom from " + dbtable;
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// strSQL = "select ASTEXT(the_geom), nom_provin as geom from " + dbtable;
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/* String strSQL = "SELECT gid, rd_3, rd_5, rd_6, rd_10, rd_11, rd_12, rd_13, rd_14,";
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strSQL = strSQL + " rd_15, rd_16, kilometers, cost, metros, AsText(force_2d(the_geom)) FROM vias";
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strSQL = strSQL + " WHERE TRUE";
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*/
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// PreparedStatement s = conn.prepareStatement(strSQL);
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Statement s = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY); |
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// s.execute("begin");
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// Statement s = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY);
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// s.setFetchSize(5);
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/* int fetchSize = 150000;
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s.execute("declare wkb_cursor2 binary cursor for " + strSQL);
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ResultSet r = s.executeQuery("fetch forward " + fetchSize + " in wkb_cursor2"); */
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// String strSQL2 = "select AsBinary(the_geom) as geom, nom_provin from " + dbtable;
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// PreparedStatement ps = conn.prepareStatement(strSQL2);
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// ResultSet r = ps.executeQuery();
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ResultSet r = s.executeQuery(strSQL);
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// WKBParser parser = new WKBParser();
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long id=0; |
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/* FastpathArg args[] = new FastpathArg[2];
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args[0] = new FastpathArg(fd);
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args[1] = new FastpathArg(len);
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return fp.getData("loread", args); */
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while( r.next() )
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{ |
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/*
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* Retrieve the geometry as an object then cast it to the geometry type.
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* Print things out.
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*/
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Object obj = r.getObject(9); |
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// fp.
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// final Shape current = (Shape) r.getObject(1);
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// byte[] arrayByte = r.getBytes(1);
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// String strAux = r.getString(2);
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id++; |
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// Geometry regeom = PGgeometry.geomFromString(obj.toString());
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// PGgeometry geom = (PGgeometry)obj;
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// int id = r.getInt(2);
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// System.out.println("Row " + id + ":" + strAux);
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// System.out.println(geom.toString());
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// System.out.println("provin=" + r.getString(2));
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/* if ((id % fetchSize) == 0)
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{
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r = s.executeQuery("fetch forward " + fetchSize + " in wkb_cursor");
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} */
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} |
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// s.execute("end");
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s.close(); |
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} |
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catch( Exception e ) |
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{ |
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e.printStackTrace(); |
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} |
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} |
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private static void test4(FLyrVect lyr) |
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{ |
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try
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{ |
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ISpatialDB dbAdapter = (ISpatialDB) lyr.getSource(); |
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IVectorialDatabaseDriver dbDriver = (IVectorialDatabaseDriver) dbAdapter.getDriver(); |
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IFeatureIterator geomIt = dbDriver.getFeatureIterator(lyr.getFullExtent(), "23030");
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while (geomIt.hasNext())
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{ |
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IFeature feat = geomIt.next(); |
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IGeometry geom = feat.getGeometry(); |
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} |
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} |
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catch(Exception e) |
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{ |
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e.printStackTrace(); |
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} |
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} |
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private static FLyrVect initLayerPostGIS() |
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{ |
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String dbURL = "jdbc:postgresql://localhost:5432/latin1"; // latin1 is the catalog name |
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String user = "postgres"; |
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String pwd = "aquilina"; |
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String layerName = "vias"; |
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String tableName = "vias"; |
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IConnection conn; |
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LayerFactory.setDriversPath("D:/eclipse/workspace/_fwAndami/gvSIG/extensiones/com.iver.cit.gvsig/drivers");
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try {
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conn = ConnectionFactory.createConnection(dbURL, user, pwd); |
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((ConnectionJDBC)conn).getConnection().setAutoCommit(false);
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|
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String fidField = "gid"; // BE CAREFUL => MAY BE NOT!!! |
444 |
String geomField = "the_geom"; // BE CAREFUL => MAY BE NOT!!! => You should read table GEOMETRY_COLUMNS. |
445 |
// See PostGIS help.
|
446 |
|
447 |
// To obtain the fields, make a connection and get them.
|
448 |
/* Statement st = conn.createStatement();
|
449 |
ResultSet rs = st.executeQuery("select * from " + tableName + " LIMIT 1");
|
450 |
ResultSetMetaData rsmd = rs.getMetaData();
|
451 |
String[] fields = new String[rsmd.getColumnCount()-1]; // We don't want to include the_geom field
|
452 |
int j = 0;
|
453 |
for (int i = 0; i < fields.length; i++) {
|
454 |
if (!rsmd.getColumnName(i+1).equalsIgnoreCase(geomField))
|
455 |
{
|
456 |
fields[j++] = rsmd.getColumnName(i+1);
|
457 |
}
|
458 |
}
|
459 |
rs.close(); */
|
460 |
|
461 |
String[] fields = new String[1]; |
462 |
fields[0] = "gid"; |
463 |
|
464 |
String whereClause = ""; |
465 |
|
466 |
IVectorialJDBCDriver driver = (IVectorialJDBCDriver) LayerFactory.getDM() |
467 |
.getDriver("PostGIS JDBC Driver");
|
468 |
|
469 |
// Here you can set the workingArea
|
470 |
// driver.setWorkingArea(dbLayerDefinition.getWorkingArea());
|
471 |
|
472 |
|
473 |
String strEPSG = "23030"; |
474 |
DBLayerDefinition lyrDef = new DBLayerDefinition();
|
475 |
lyrDef.setName(layerName); |
476 |
lyrDef.setTableName(tableName); |
477 |
lyrDef.setWhereClause(whereClause); |
478 |
lyrDef.setFieldNames(fields); |
479 |
lyrDef.setFieldGeometry(geomField); |
480 |
lyrDef.setFieldID(fidField); |
481 |
// if (dbLayerDefinition.getWorkingArea() != null)
|
482 |
// lyrDef.setWorkingArea(dbLayerDefinition.getWorkingArea());
|
483 |
|
484 |
lyrDef.setSRID_EPSG(strEPSG); |
485 |
if (driver instanceof ICanReproject) |
486 |
{ |
487 |
((ICanReproject)driver).setDestProjection(strEPSG); |
488 |
} |
489 |
driver.setData(conn, lyrDef); |
490 |
IProjection proj = null;
|
491 |
if (driver instanceof ICanReproject) |
492 |
{ |
493 |
proj = CRSFactory.getCRS("EPSG:" + ((ICanReproject)driver).getSourceProjection());
|
494 |
} |
495 |
|
496 |
FLayer lyr = LayerFactory.createDBLayer(driver, layerName, proj); |
497 |
Rectangle2D rectAux = lyr.getFullExtent();
|
498 |
return (FLyrVect) lyr;
|
499 |
} |
500 |
catch(Exception e) |
501 |
{ |
502 |
e.printStackTrace(); |
503 |
} |
504 |
return null; |
505 |
} |
506 |
} |