svn-gvsig-desktop / trunk / libraries / libFMap / src / com / iver / cit / gvsig / fmap / drivers / jdbc / postgis / PostGisFeatureIterator.java @ 2183
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/*
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* Created on 11-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.nio.ByteBuffer; |
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import java.sql.ResultSet; |
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import java.sql.ResultSetMetaData; |
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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 com.hardcode.gdbms.engine.values.Value; |
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import com.hardcode.gdbms.engine.values.ValueFactory; |
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import com.iver.cit.gvsig.fmap.core.DefaultFeature; |
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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.drivers.IFeatureIterator; |
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import com.iver.cit.gvsig.fmap.drivers.WKBParser; |
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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 PostGisFeatureIterator implements IFeatureIterator { |
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private WKBParser parser = new WKBParser(); |
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private ResultSetMetaData metaData = null; |
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ResultSet rs;
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Statement st;
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String strAux;
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IGeometry geom; |
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int numColumns;
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Value[] regAtt;
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/**
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* @throws SQLException
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*
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*/
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public PostGisFeatureIterator(ResultSet rs) { |
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// Debe ser forward only
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this.rs = rs;
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try {
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numColumns = rs.getMetaData().getColumnCount(); |
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regAtt = new Value[numColumns-1]; |
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metaData = rs.getMetaData(); |
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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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/* (non-Javadoc)
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* @see com.iver.cit.gvsig.fmap.drivers.jdbc.GeometryIterator#hasNext()
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*/
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public boolean hasNext() throws SQLException { |
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if (rs.next())
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return true; |
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else
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{ |
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rs.close(); |
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return false; |
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} |
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} |
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/* (non-Javadoc)
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* @see com.iver.cit.gvsig.fmap.drivers.jdbc.GeometryIterator#next()
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*/
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public IFeature next() throws SQLException { |
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byte[] data = rs.getBytes(1); |
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geom = parser.parse(data); |
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for (int fieldId=2; fieldId <= numColumns; fieldId++ ) |
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{ |
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data = rs.getBytes(fieldId); |
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if (data == null) |
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regAtt[fieldId-2] = ValueFactory.createNullValue();
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else
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{ |
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ByteBuffer buf = ByteBuffer.wrap(data); |
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if (metaData.getColumnType(fieldId) == Types.VARCHAR) |
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regAtt[fieldId-2] = ValueFactory.createValue(rs.getString(fieldId));
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if (metaData.getColumnType(fieldId) == Types.FLOAT) |
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regAtt[fieldId-2] = ValueFactory.createValue(buf.getFloat());
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if (metaData.getColumnType(fieldId) == Types.DOUBLE) |
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regAtt[fieldId-2] = ValueFactory.createValue(buf.getDouble());
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if (metaData.getColumnType(fieldId) == Types.INTEGER) |
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regAtt[fieldId-2] = ValueFactory.createValue(buf.getInt());
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if (metaData.getColumnType(fieldId) == Types.BIGINT) |
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regAtt[fieldId-2] = ValueFactory.createValue(buf.getLong());
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if (metaData.getColumnType(fieldId) == Types.BIT) |
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// TODO
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regAtt[fieldId-2] = ValueFactory.createValue(rs.getBoolean(fieldId));
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if (metaData.getColumnType(fieldId) == Types.DATE) |
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// TODO
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regAtt[fieldId-2] = ValueFactory.createValue(rs.getDate(fieldId));
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} |
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} |
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// TODO: Aqu? habr?a que usar una Factor?a.
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IFeature feat = new DefaultFeature(geom, regAtt);
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return feat;
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} |
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} |