svn-gvsig-desktop / trunk / extensions / extJDBC / src / com / iver / cit / gvsig / fmap / drivers / jdbc / postgis / PostGisDriver.java @ 4740
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/*
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* Created on 04-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.math.BigDecimal; |
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import java.nio.ByteBuffer; |
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import java.sql.Connection; |
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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.Types; |
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import java.util.Hashtable; |
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import java.util.Properties; |
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import org.apache.log4j.Logger; |
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import org.postgis.PGbox2d; |
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import org.postgis.PGbox3d; |
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import com.hardcode.gdbms.engine.data.edition.DataWare; |
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import com.hardcode.gdbms.engine.values.Value; |
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import com.hardcode.gdbms.engine.values.ValueFactory; |
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import com.iver.andami.messages.NotificationManager; |
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import com.iver.cit.gvsig.fmap.DriverException; |
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import com.iver.cit.gvsig.fmap.core.ICanReproject; |
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import com.iver.cit.gvsig.fmap.core.IGeometry; |
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import com.iver.cit.gvsig.fmap.drivers.DBLayerDefinition; |
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import com.iver.cit.gvsig.fmap.drivers.DefaultDBDriver; |
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import com.iver.cit.gvsig.fmap.drivers.DriverAttributes; |
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import com.iver.cit.gvsig.fmap.drivers.IFeatureIterator; |
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import com.iver.cit.gvsig.fmap.drivers.jdbc.WKBParser; |
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import com.iver.cit.gvsig.fmap.edition.EditionException; |
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import com.iver.cit.gvsig.fmap.edition.IRowEdited; |
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import com.iver.cit.gvsig.fmap.edition.ISpatialWriter; |
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import com.iver.cit.gvsig.fmap.layers.FLayer; |
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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 Window -
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* Preferences - Java - Code Generation - Code and Comments
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*/
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public class PostGisDriver extends DefaultDBDriver implements ICanReproject, ISpatialWriter { |
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private static Logger logger = Logger.getLogger(PostGisDriver.class |
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.getName()); |
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private static int FETCH_SIZE = 5000; |
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private PostGISWriter writer;
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private WKBParser parser = new WKBParser(); |
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private int fetch_min = -1; |
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private int fetch_max = -1; |
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private String sqlOrig; |
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/**
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* Used by setAbsolutePosition
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*/
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private String sqlTotal; |
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private String strEPSG = null; |
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private String originalEPSG = null; |
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private Rectangle2D fullExtent = null; |
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private String strAux; |
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private String completeWhere; |
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private String provCursorName = null; |
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int numProvCursors = 0; |
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static {
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try {
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Class.forName("org.postgresql.Driver"); |
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} catch (ClassNotFoundException e) { |
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throw new RuntimeException(e); |
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} |
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} |
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/**
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*
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*/
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public PostGisDriver() {
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} |
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/*
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* (non-Javadoc)
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*
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* @see com.iver.cit.gvsig.fmap.drivers.VectorialDriver#getDriverAttributes()
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*/
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public DriverAttributes getDriverAttributes() {
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return null; |
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} |
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/*
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* (non-Javadoc)
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*
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* @see com.hardcode.driverManager.Driver#getName()
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*/
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public String getName() { |
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return "PostGIS JDBC Driver"; |
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} |
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/**
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* @see com.iver.cit.gvsig.fmap.layers.ReadableVectorial#getShape(int)
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*/
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public IGeometry getShape(int index) { |
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IGeometry geom = null;
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boolean resul;
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try {
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setAbsolutePosition(index); |
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// strAux = rs.getString(1);
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// geom = parser.read(strAux);
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if (rs != null) { |
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byte[] data = rs.getBytes(1); |
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geom = parser.parse(data); |
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} |
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} catch (SQLException e) { |
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e.printStackTrace(); |
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} |
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return geom;
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} |
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/**
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* First, the geometry field. After, the rest of fields
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*
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* @return
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*/
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/*
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* public String getTotalFields() { String strAux = "AsBinary(" +
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* getLyrDef().getFieldGeometry() + ")"; String[] fieldNames =
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* getLyrDef().getFieldNames(); for (int i=0; i< fieldNames.length; i++) {
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* strAux = strAux + ", " + fieldNames[i]; } return strAux; }
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*/
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/**
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* Antes de llamar a esta funci?n hay que haber fijado el workingArea si se
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* quiere usar.
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*
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* @param conn
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*/
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public void setData(Connection conn, DBLayerDefinition lyrDef) { |
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this.conn = conn;
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// TODO: Deber?amos poder quitar Conneciton de la llamada y meterlo
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// en lyrDef desde el principio.
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lyrDef.setConnection(conn); |
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setLyrDef(lyrDef); |
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getTableEPSG(); |
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try {
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sqlOrig = "SELECT " + getTotalFields() + " FROM " |
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+ getLyrDef().getTableName() + " "
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+ getLyrDef().getWhereClause(); |
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if (canReproject(strEPSG)) {
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completeWhere = getCompoundWhere(sqlOrig, workingArea, strEPSG); |
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} else {
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completeWhere = getCompoundWhere(sqlOrig, workingArea, |
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originalEPSG); |
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} |
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String sqlAux = sqlOrig + completeWhere + " ORDER BY " |
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+ getLyrDef().getFieldID(); |
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completeWhere = getLyrDef().getWhereClause() + completeWhere; |
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sqlTotal = sqlAux; |
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logger.info("Cadena SQL:" + sqlAux);
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st = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,
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ResultSet.CONCUR_READ_ONLY);
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// st.setFetchSize(FETCH_SIZE);
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st.execute("declare wkb_cursor binary cursor for " + sqlAux);
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rs = st.executeQuery("fetch forward " + FETCH_SIZE
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+ " in wkb_cursor");
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// st.execute("begin");
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// bCursorActivo = true;
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// rs = st.executeQuery(sqlOrig);
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fetch_min = 0;
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fetch_max = FETCH_SIZE - 1;
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metaData = rs.getMetaData(); |
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doRelateID_FID(); |
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} catch (SQLException e) { |
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NotificationManager.addError( |
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"Error al conectar a la base de datos.", e);
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} |
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} |
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/**
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* @see com.iver.cit.gvsig.fmap.layers.ReadableVectorial#getFullExtent()
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*/
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public Rectangle2D getFullExtent() { |
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if (fullExtent == null) { |
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try {
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Statement s = conn.createStatement();
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ResultSet r = s.executeQuery("SELECT extent(" |
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+ getLyrDef().getFieldGeometry() |
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+ ") AS FullExtent FROM " + getLyrDef().getTableName()
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+ " " + getCompleteWhere());
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r.next(); |
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String strAux = r.getString(1); |
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System.out.println("fullExtent = " + strAux); |
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if (strAux.startsWith("BOX3D")) { |
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PGbox3d regeom = new PGbox3d(strAux);
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double x = regeom.getLLB().x;
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double y = regeom.getLLB().y;
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double w = regeom.getURT().x - x;
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double h = regeom.getURT().y - y;
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fullExtent = new Rectangle2D.Double(x, y, w, h); |
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} else {
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PGbox2d regeom = new PGbox2d(strAux);
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double x = regeom.getLLB().x;
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double y = regeom.getLLB().y;
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double w = regeom.getURT().x - x;
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double h = regeom.getURT().y - y;
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fullExtent = new Rectangle2D.Double(x, y, w, h); |
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} |
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} catch (SQLException e) { |
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System.err.println(e.getMessage());
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} |
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} |
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return fullExtent;
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} |
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/*
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* (non-Javadoc)
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*
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* @see com.iver.cit.gvsig.fmap.drivers.VectorialDatabaseDriver#getGeometryIterator(java.lang.String)
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*/
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public IFeatureIterator getFeatureIterator(String sql) |
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throws com.iver.cit.gvsig.fmap.DriverException {
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PostGisFeatureIterator geomIterator = null;
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try {
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// st = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,
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// ResultSet.CONCUR_READ_ONLY);
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if (provCursorName != null) { |
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/* st.execute("BEGIN");
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st.execute("CLOSE " + provCursorName);
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bCursorActivo = false;
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st.execute("COMMIT"); */
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numProvCursors++; |
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} |
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// st.execute("BEGIN");
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provCursorName = "wkb_cursor_prov_" + System.currentTimeMillis() + "" + numProvCursors; |
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// st.execute("BEGIN");
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bCursorActivo = true;
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// ResultSet rs = st.executeQuery(sql);
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geomIterator = new PostGisFeatureIterator(conn, provCursorName, sql);
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geomIterator.setLyrDef(getLyrDef()); |
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} catch (SQLException e) { |
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e.printStackTrace(); |
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throw new DriverException(e); |
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// return null;
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} |
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return geomIterator;
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} |
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public IFeatureIterator getFeatureIterator(Rectangle2D r, String strEPSG) |
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throws DriverException {
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if (workingArea != null) |
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r = r.createIntersection(workingArea); |
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String sqlAux;
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if (canReproject(strEPSG)) {
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sqlAux = sqlOrig + getCompoundWhere(sqlOrig, r, strEPSG); |
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} else {
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sqlAux = sqlOrig + getCompoundWhere(sqlOrig, r, originalEPSG); |
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} |
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System.out.println("SqlAux getFeatureIterator = " + sqlAux); |
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return getFeatureIterator(sqlAux);
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} |
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/**
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* Le pasas el rect?ngulo que quieres pedir. La primera vez es el
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* workingArea, y las siguientes una interseccion de este rectangulo con el
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* workingArea
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*
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* @param r
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* @param strEPSG
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* @return
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*/
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private String getCompoundWhere(String sql, Rectangle2D r, String strEPSG) { |
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if (r == null) |
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return ""; |
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double xMin = r.getMinX();
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double yMin = r.getMinY();
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double xMax = r.getMaxX();
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double yMax = r.getMaxY();
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String wktBox = "GeometryFromText('LINESTRING(" + xMin + " " + yMin |
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+ ", " + xMax + " " + yMin + ", " + xMax + " " + yMax + ", " |
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+ xMin + " " + yMax + ")', " + strEPSG + ")"; |
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String sqlAux;
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if (getWhereClause().indexOf("WHERE") != -1) |
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sqlAux = getLyrDef().getFieldGeometry() + " && " + wktBox;
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else
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sqlAux = "WHERE " + getLyrDef().getFieldGeometry() + " && " |
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+ wktBox; |
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return sqlAux;
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} |
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/**
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* @see com.iver.cit.gvsig.fmap.drivers.VectorialDatabaseDriver#getConnectionStringBeginning()
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*/
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public String getConnectionStringBeginning() { |
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return "jdbc:postgresql:"; |
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} |
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/*
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* (non-Javadoc)
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*
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* @see com.iver.cit.gvsig.fmap.drivers.DefaultDBDriver#getFieldValue(long,
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* int)
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*/
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public Value getFieldValue(long rowIndex, int idField) |
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throws com.hardcode.gdbms.engine.data.driver.DriverException {
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boolean resul;
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// EL ABSOLUTE NO HACE QUE SE VUELVAN A LEER LAS
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// FILAS, ASI QUE MONTAMOS ESTA HISTORIA PARA QUE
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// LO HAGA
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// System.out.println("getShape " + index);
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int index = (int) (rowIndex); |
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try {
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setAbsolutePosition(index); |
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int fieldId = idField + 2; |
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byte[] byteBuf = rs.getBytes(fieldId); |
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if (byteBuf == null) |
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return ValueFactory.createNullValue();
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else {
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ByteBuffer buf = ByteBuffer.wrap(byteBuf); |
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if (metaData.getColumnType(fieldId) == Types.VARCHAR) |
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return ValueFactory.createValue(rs.getString(fieldId));
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if (metaData.getColumnType(fieldId) == Types.FLOAT) |
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return ValueFactory.createValue(buf.getFloat());
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if (metaData.getColumnType(fieldId) == Types.DOUBLE) |
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return ValueFactory.createValue(buf.getDouble());
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if (metaData.getColumnType(fieldId) == Types.INTEGER) |
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return ValueFactory.createValue(buf.getInt());
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if (metaData.getColumnType(fieldId) == Types.BIGINT) |
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return ValueFactory.createValue(buf.getLong());
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if (metaData.getColumnType(fieldId) == Types.BIT) |
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// TODO
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return ValueFactory.createValue(rs.getBoolean(fieldId));
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if (metaData.getColumnType(fieldId) == Types.DATE) |
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// TODO
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return ValueFactory.createValue(rs.getDate(fieldId));
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if (metaData.getColumnType(fieldId) == Types.NUMERIC) { |
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// System.out.println(metaData.getColumnName(fieldId) + " "
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// + metaData.getColumnClassName(fieldId));
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short ndigits = buf.getShort();
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short weight = buf.getShort();
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short sign = buf.getShort();
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short dscale = buf.getShort();
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String strAux;
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if (sign == 0) |
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strAux = "+";
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else
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strAux = "-";
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for (int iDigit = 0; iDigit < ndigits; iDigit++) { |
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short digit = buf.getShort();
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strAux = strAux + digit; |
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if (iDigit == weight)
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strAux = strAux + ".";
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} |
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strAux = strAux + "0";
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String str2;
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BigDecimal dec;
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dec = new BigDecimal(strAux); |
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// System.out.println(ndigits + "_" + weight + "_" + dscale
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// + "_" + strAux);
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// System.out.println(strAux + " Big= " + dec);
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return ValueFactory.createValue(dec.doubleValue());
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} |
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|
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} |
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} catch (SQLException e) { |
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throw new com.hardcode.gdbms.engine.data.driver.DriverException(e |
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.getMessage()); |
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} |
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return ValueFactory.createNullValue();
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} |
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|
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public void open() throws com.iver.cit.gvsig.fmap.DriverException { |
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/*
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* try { st = conn.createStatement(); st.setFetchSize(2000); if
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* (bCursorActivo) close(); st.execute("declare wkb_cursor binary cursor
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* for " + sqlOrig); rs = st.executeQuery("fetch forward all in
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* wkb_cursor"); // st.execute("BEGIN"); bCursorActivo = true; } catch
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* (SQLException e) { e.printStackTrace(); throw new
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* com.iver.cit.gvsig.fmap.DriverException(e); }
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*/
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} |
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private void setAbsolutePosition(int index) throws SQLException { |
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// TODO: USAR LIMIT Y ORDER BY, Y HACERLO TAMBI?N PARA
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// MYSQL
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|
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// EL ABSOLUTE NO HACE QUE SE VUELVAN A LEER LAS
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// FILAS, ASI QUE MONTAMOS ESTA HISTORIA PARA QUE
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// LO HAGA
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// System.out.println("getShape " + index + " fetchMin=" + fetch_min + "
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// fetchMax=" + fetch_max);
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if (index < fetch_min) {
|
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// rs.close();
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st.execute("CLOSE wkb_cursor");
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st.execute("declare wkb_cursor binary cursor for " + sqlTotal);
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rs = st.executeQuery("fetch forward " + FETCH_SIZE
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+ " in wkb_cursor");
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|
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// rs.beforeFirst();
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|
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// rs = st.executeQuery(sqlOrig);
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fetch_min = 0;
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fetch_max = FETCH_SIZE - 1;
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} |
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while (index > fetch_max && index != 0) { |
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rs = st.executeQuery("fetch forward " + FETCH_SIZE
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+ " in wkb_cursor");
|
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// rs.next();
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/*
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* rs.afterLast(); // forzamos una carga rs.next();
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*/
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fetch_min = fetch_max + 1;
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fetch_max = fetch_min + FETCH_SIZE - 1;
|
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// System.out.println("fetchSize = " + rs.getFetchSize() + " " +
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// fetch_min + "-" + fetch_max);
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} |
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if (rs != null) |
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rs.absolute(index - fetch_min + 1);
|
488 |
|
489 |
// rs.absolute(index+1);
|
490 |
|
491 |
} |
492 |
|
493 |
/**
|
494 |
* @see com.iver.cit.gvsig.fmap.drivers.VectorialDatabaseDriver#getGeometryField(java.lang.String)
|
495 |
*/
|
496 |
public String getGeometryField(String fieldName) { |
497 |
return "ASBINARY(" + fieldName + ", 'XDR')"; |
498 |
} |
499 |
|
500 |
/**
|
501 |
* @see com.hardcode.gdbms.engine.data.driver.ObjectDriver#getPrimaryKeys()
|
502 |
*/
|
503 |
public int[] getPrimaryKeys() |
504 |
throws com.hardcode.gdbms.engine.data.driver.DriverException {
|
505 |
// TODO Auto-generated method stub
|
506 |
return null; |
507 |
} |
508 |
|
509 |
/**
|
510 |
* @see com.iver.cit.gvsig.fmap.drivers.VectorialJDBCDriver#getDefaultPort()
|
511 |
*/
|
512 |
public int getDefaultPort() { |
513 |
return 5432; |
514 |
} |
515 |
|
516 |
/**
|
517 |
* @see com.hardcode.gdbms.engine.data.driver.ObjectDriver#write(com.hardcode.gdbms.engine.data.edition.DataWare)
|
518 |
*/
|
519 |
public void write(DataWare arg0) |
520 |
throws com.hardcode.gdbms.engine.data.driver.DriverException {
|
521 |
// TODO Auto-generated method stub
|
522 |
|
523 |
} |
524 |
|
525 |
/*
|
526 |
* (non-Javadoc)
|
527 |
*
|
528 |
* @see com.iver.cit.gvsig.fmap.core.ICanReproject#getSourceProjection()
|
529 |
*/
|
530 |
public String getSourceProjection() { |
531 |
if (originalEPSG == null) |
532 |
getTableEPSG(); |
533 |
return originalEPSG;
|
534 |
} |
535 |
|
536 |
/**
|
537 |
* Las tablas con geometr?as est?n en la tabla GEOMETRY_COLUMNS y de
|
538 |
* ah? sacamos en qu? proyecci?n est?n.
|
539 |
* El problema es que si el usuario hace una vista de esa
|
540 |
* tabla, no estar? dada de alta aqu? y entonces gvSIG
|
541 |
* no se entera en qu? proyecci?n est? trabajando (y le
|
542 |
* ponemos un -1 como mal menor). El -1 implica que luego
|
543 |
* no podremos reproyectar al vuelo desde la base de datos.
|
544 |
*/
|
545 |
private void getTableEPSG() { |
546 |
try {
|
547 |
Statement stAux = conn.createStatement();
|
548 |
|
549 |
String sql = "SELECT * FROM GEOMETRY_COLUMNS WHERE F_TABLE_NAME = '" |
550 |
+ getTableName() + "';";
|
551 |
ResultSet rs = stAux.executeQuery(sql);
|
552 |
rs.next(); |
553 |
originalEPSG = "" + rs.getInt("SRID"); |
554 |
rs.close(); |
555 |
} catch (SQLException e) { |
556 |
// TODO Auto-generated catch block
|
557 |
originalEPSG = "-1";
|
558 |
logger.error(e); |
559 |
e.printStackTrace(); |
560 |
} |
561 |
|
562 |
} |
563 |
|
564 |
/*
|
565 |
* (non-Javadoc)
|
566 |
*
|
567 |
* @see com.iver.cit.gvsig.fmap.core.ICanReproject#getDestProjection()
|
568 |
*/
|
569 |
public String getDestProjection() { |
570 |
return strEPSG;
|
571 |
} |
572 |
|
573 |
/*
|
574 |
* (non-Javadoc)
|
575 |
*
|
576 |
* @see com.iver.cit.gvsig.fmap.core.ICanReproject#setDestProjection(java.lang.String)
|
577 |
*/
|
578 |
public void setDestProjection(String toEPSG) { |
579 |
this.strEPSG = toEPSG;
|
580 |
} |
581 |
|
582 |
/*
|
583 |
* (non-Javadoc)
|
584 |
*
|
585 |
* @see com.iver.cit.gvsig.fmap.core.ICanReproject#canReproject(java.lang.String)
|
586 |
*/
|
587 |
public boolean canReproject(String toEPSGdestinyProjection) { |
588 |
// TODO POR AHORA, REPROYECTA SIEMPRE gvSIG.
|
589 |
return false; |
590 |
} |
591 |
|
592 |
/*
|
593 |
* (non-Javadoc)
|
594 |
*
|
595 |
* @see com.iver.cit.gvsig.fmap.drivers.DefaultDBDriver#doRelateID_FID()
|
596 |
*/
|
597 |
protected void doRelateID_FID() { |
598 |
hashRelate = new Hashtable(); |
599 |
try {
|
600 |
String strSQL = "SELECT " + getLyrDef().getFieldID() + " FROM " |
601 |
+ getLyrDef().getTableName() + " "
|
602 |
+ getLyrDef().getWhereClause(); |
603 |
if (canReproject(strEPSG)) {
|
604 |
strSQL = strSQL |
605 |
+ getCompoundWhere(strSQL, workingArea, strEPSG); |
606 |
} else {
|
607 |
strSQL = strSQL |
608 |
+ getCompoundWhere(strSQL, workingArea, originalEPSG); |
609 |
} |
610 |
String sqlAux = strSQL + " ORDER BY " + getLyrDef().getFieldID(); |
611 |
Statement s = getConnection().createStatement(
|
612 |
ResultSet.TYPE_SCROLL_INSENSITIVE,
|
613 |
ResultSet.CONCUR_READ_ONLY);
|
614 |
int fetchSize = 5000; |
615 |
ResultSet r = s.executeQuery(strSQL);
|
616 |
int id = 0; |
617 |
String gid;
|
618 |
while (r.next()) {
|
619 |
gid = r.getString(1);
|
620 |
Value aux = ValueFactory.createValue(gid); |
621 |
hashRelate.put(aux, new Integer(id)); |
622 |
// System.out.println("ASOCIANDO CLAVE " + aux + " CON VALOR " +
|
623 |
// id);
|
624 |
id++; |
625 |
// System.out.println("Row " + id + ":" + strAux);
|
626 |
} |
627 |
s.close(); |
628 |
numReg = id; |
629 |
|
630 |
/*
|
631 |
* for (int index = 0; index < getShapeCount(); index++) { Value aux =
|
632 |
* getFieldValue(index, idFID_FieldName-2); hashRelate.put(aux, new
|
633 |
* Integer(index)); // System.out.println("Row " + index + " clave=" +
|
634 |
* aux); }
|
635 |
*/
|
636 |
/*
|
637 |
* int index = 0;
|
638 |
*
|
639 |
* while (rs.next()) { Value aux = getFieldValue(index,
|
640 |
* idFID_FieldName-2); hashRelate.put(aux, new Integer(index));
|
641 |
* index++; System.out.println("Row " + index + " clave=" + aux); }
|
642 |
* numReg = index;
|
643 |
*/
|
644 |
// rs.beforeFirst();
|
645 |
/*
|
646 |
* } catch (com.hardcode.gdbms.engine.data.driver.DriverException e) { //
|
647 |
* TODO Auto-generated catch block e.printStackTrace();
|
648 |
*/
|
649 |
} catch (SQLException e) { |
650 |
// TODO Auto-generated catch block
|
651 |
e.printStackTrace(); |
652 |
} |
653 |
} |
654 |
|
655 |
public String getSqlTotal() { |
656 |
return sqlTotal;
|
657 |
} |
658 |
|
659 |
/**
|
660 |
* @return Returns the completeWhere.
|
661 |
*/
|
662 |
public String getCompleteWhere() { |
663 |
return completeWhere;
|
664 |
} |
665 |
|
666 |
/*
|
667 |
* (non-Javadoc)
|
668 |
*
|
669 |
* @see com.iver.cit.gvsig.fmap.drivers.DefaultDBDriver#close()
|
670 |
*/
|
671 |
public void close() { |
672 |
super.close();
|
673 |
/*
|
674 |
* if (bCursorActivo) { try { // st =
|
675 |
* conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,
|
676 |
* ResultSet.CONCUR_READ_ONLY); st.execute("CLOSE wkb_cursor_prov"); //
|
677 |
* st.close(); } catch (SQLException e) { // TODO Auto-generated catch
|
678 |
* block e.printStackTrace(); } bCursorActivo = false; }
|
679 |
*/
|
680 |
|
681 |
} |
682 |
|
683 |
/*
|
684 |
* (non-Javadoc)
|
685 |
*
|
686 |
* @see com.iver.cit.gvsig.fmap.drivers.VectorialDatabaseDriver#getFeatureIterator(java.awt.geom.Rectangle2D,
|
687 |
* java.lang.String, java.lang.String[])
|
688 |
*/
|
689 |
public IFeatureIterator getFeatureIterator(Rectangle2D r, String strEPSG, |
690 |
String[] alphaNumericFieldsNeeded) throws DriverException { |
691 |
try {
|
692 |
if (workingArea != null) |
693 |
r = r.createIntersection(workingArea); |
694 |
// if (getLyrDef()==null){
|
695 |
// load();
|
696 |
// throw new DriverException("Fallo de la conexi?n");
|
697 |
// }
|
698 |
String strAux = getGeometryField(getLyrDef().getFieldGeometry());
|
699 |
|
700 |
boolean found = false; |
701 |
if (alphaNumericFieldsNeeded != null) { |
702 |
for (int i = 0; i < alphaNumericFieldsNeeded.length; i++) { |
703 |
strAux = strAux + ", " + alphaNumericFieldsNeeded[i];
|
704 |
if (alphaNumericFieldsNeeded[i].equals(getLyrDef()
|
705 |
.getFieldID())) |
706 |
found = true;
|
707 |
} |
708 |
} |
709 |
// Nos aseguramos de pedir siempre el campo ID
|
710 |
if (found == false) |
711 |
strAux = strAux + ", " + getLyrDef().getFieldID();
|
712 |
|
713 |
String sqlProv = "SELECT " + strAux + " FROM " |
714 |
+ getLyrDef().getTableName() + " "
|
715 |
+ getLyrDef().getWhereClause(); |
716 |
|
717 |
String sqlAux;
|
718 |
if (canReproject(strEPSG)) {
|
719 |
sqlAux = sqlProv + getCompoundWhere(sqlProv, r, strEPSG); |
720 |
} else {
|
721 |
sqlAux = sqlProv + getCompoundWhere(sqlProv, r, originalEPSG); |
722 |
} |
723 |
|
724 |
System.out.println("SqlAux getFeatureIterator = " + sqlAux); |
725 |
|
726 |
return getFeatureIterator(sqlAux);
|
727 |
} catch (Exception e) { |
728 |
throw new DriverException(e); |
729 |
} |
730 |
} |
731 |
|
732 |
public void preProcess() throws EditionException { |
733 |
writer.preProcess(); |
734 |
} |
735 |
|
736 |
public void process(IRowEdited row) throws EditionException { |
737 |
writer.process(row); |
738 |
} |
739 |
|
740 |
public void postProcess() throws EditionException { |
741 |
writer.postProcess(); |
742 |
} |
743 |
|
744 |
public String getCapability(String capability) { |
745 |
return writer.getCapability(capability);
|
746 |
} |
747 |
|
748 |
public void setCapabilities(Properties capabilities) { |
749 |
writer.setCapabilities(capabilities); |
750 |
} |
751 |
|
752 |
public boolean canWriteAttribute(int sqlType) { |
753 |
return writer.canWriteAttribute(sqlType);
|
754 |
} |
755 |
|
756 |
public boolean canWriteGeometry(int gvSIGgeometryType) { |
757 |
return writer.canWriteGeometry(gvSIGgeometryType);
|
758 |
} |
759 |
|
760 |
public void initialize(FLayer layer) throws EditionException { |
761 |
writer = new PostGISWriter();
|
762 |
writer.setCreateTable(false);
|
763 |
writer.setWriteAll(false);
|
764 |
// Obtenemos el DBLayerDefinition a partir del driver
|
765 |
|
766 |
DBLayerDefinition dbLyrDef = getLyrDef(); |
767 |
|
768 |
|
769 |
writer.initialize(dbLyrDef); |
770 |
} |
771 |
|
772 |
} |