svn-gvsig-desktop / trunk / extensions / extJDBC / src / com / iver / cit / gvsig / fmap / drivers / jdbc / postgis / PostGIS.java @ 40034
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/*
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* Created on 26-oct-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.io.ByteArrayOutputStream; |
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import java.io.PrintStream; |
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import java.io.UnsupportedEncodingException; |
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import java.nio.charset.Charset; |
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import java.sql.Date; |
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import java.sql.SQLException; |
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import java.sql.Types; |
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import com.hardcode.gdbms.engine.values.DateValue; |
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import com.hardcode.gdbms.engine.values.NullValue; |
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import com.hardcode.gdbms.engine.values.Value; |
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import com.hardcode.gdbms.engine.values.ValueWriter; |
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import com.iver.cit.gvsig.exceptions.visitors.ProcessVisitorException; |
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import com.iver.cit.gvsig.fmap.core.FPolygon2D; |
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import com.iver.cit.gvsig.fmap.core.FPolyline2D; |
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import com.iver.cit.gvsig.fmap.core.FShape; |
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import com.iver.cit.gvsig.fmap.core.FShape3D; |
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import com.iver.cit.gvsig.fmap.core.FShapeM; |
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import com.iver.cit.gvsig.fmap.core.GeneralPathX; |
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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.core.IGeometry3D; |
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import com.iver.cit.gvsig.fmap.core.IGeometryM; |
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import com.iver.cit.gvsig.fmap.core.IRow; |
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import com.iver.cit.gvsig.fmap.core.ShapeFactory; |
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import com.iver.cit.gvsig.fmap.core.ShapeMFactory; |
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import com.iver.cit.gvsig.fmap.drivers.DBLayerDefinition; |
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import com.iver.cit.gvsig.fmap.drivers.DefaultJDBCDriver; |
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import com.iver.cit.gvsig.fmap.drivers.FieldDescription; |
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import com.iver.cit.gvsig.fmap.drivers.XTypes; |
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import com.iver.utiles.console.jedit.SQLTokenMarker; |
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import com.vividsolutions.jts.geom.Geometry; |
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/**
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* @author fjp
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* Necesitamos que esta clase no trabaje con funciones est?ticas
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* porque puede haber capas que provengan de distintas bases de datos.
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*/
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public class PostGIS { |
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private String toEncode; |
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/**
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* Mover esto a IverUtiles
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*
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* @param val
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* @return
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*/
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public boolean isNumeric(Value val) { |
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switch (val.getSQLType()) {
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case Types.DOUBLE: |
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case Types.FLOAT: |
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case Types.INTEGER: |
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case Types.SMALLINT: |
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case Types.BIGINT: |
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case Types.NUMERIC: |
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case Types.REAL: |
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case Types.TINYINT: |
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return true; |
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} |
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return false; |
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} |
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/**
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* @param dbLayerDef
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* @param fieldsDescr
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* @param bCreateGID @DEPRECATED
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* @return
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*/
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public String getSqlCreateSpatialTable(DBLayerDefinition dbLayerDef, |
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FieldDescription[] fieldsDescr, boolean bCreateGID) { |
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String resul;
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/* boolean bExistGID = false;
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for (int i = 0; i < dbLayerDef.getFieldNames().length; i++) {
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if (dbLayerDef.getFieldNames()[i].equalsIgnoreCase("gid")) {
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bExistGID = true;
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break;
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}
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} */
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/* if (bExistGID) // Usamos el existente y no a?adimos ninguno nosotros
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resul = "CREATE TABLE " + dbLayerDef.getTableName() + " (";
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else */
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// FJP: NUEVO: NO TOLERAMOS CAMPOS QUE SE LLAMEN GID. Lo reservamos para uso nuestro.
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resul = "CREATE TABLE " + dbLayerDef.getComposedTableName()
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+ " ( " + "\""+dbLayerDef.getFieldID()+"\"" +" serial PRIMARY KEY "; |
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int j=0; |
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for (int i = 0; i < dbLayerDef.getFieldNames().length; i++) { |
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int fieldType = fieldsDescr[i].getFieldType();
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String strType = XTypes.fieldTypeToString(fieldType);
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/*
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* if (fieldType == Types.VARCHAR) strType = strType + "(" +
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* fieldsDescr[i].getFieldLength() + ")";
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*/
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if (fieldsDescr[i].getFieldName().equalsIgnoreCase(dbLayerDef.getFieldID()))
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continue;
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resul = resul + ", " + "\""+dbLayerDef.getFieldNames()[i]+"\"" + " " + strType; |
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j++; |
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} |
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resul = resul + ");";
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return resul;
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} |
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public String getSqlAlterTable(DBLayerDefinition dbLayerDef) { |
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String strGeometryFieldType;
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strGeometryFieldType = "GEOMETRY";
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switch (dbLayerDef.getShapeType()) {
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case FShape.POINT:
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strGeometryFieldType = XTypes.fieldTypeToString(XTypes.POINT2D); |
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break;
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case FShape.LINE:
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strGeometryFieldType = XTypes.fieldTypeToString(XTypes.LINE2D); |
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break;
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case FShape.POLYGON:
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strGeometryFieldType = XTypes.fieldTypeToString(XTypes.POLYGON2D); |
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break;
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case FShape.MULTI:
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strGeometryFieldType = XTypes.fieldTypeToString(XTypes.MULTI2D); |
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break;
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case FShape.MULTIPOINT:
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strGeometryFieldType = XTypes.fieldTypeToString(XTypes.MULTIPOINT); |
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break;
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} |
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String schema = dbLayerDef.getSchema();
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if (schema == null || schema.equals("")){ |
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schema = " current_schema()::Varchar ";
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} else {
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schema = "'" +schema + "'"; |
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} |
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String result = "SELECT AddGeometryColumn(" |
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+ schema + ", '"
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+ dbLayerDef.getTableName() + "', '"
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+ dbLayerDef.getFieldGeometry() + "', "
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+ DefaultJDBCDriver.removePrefix(dbLayerDef.getSRID_EPSG()) + ", '" + strGeometryFieldType + "', " |
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+ dbLayerDef.getDimension() + ");";
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return result;
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} |
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/**
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* From geotools Adds quotes to an object for storage in postgis. The object
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* should be a string or a number. To perform an insert strings need quotes
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* around them, and numbers work fine with quotes, so this method can be
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* called on unknown objects.
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*
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* @param value
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* The object to add quotes to.
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*
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* @return a string representation of the object with quotes.
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*/
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protected String addQuotes(Object value) { |
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String retString;
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if (value != null) { |
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if (value instanceof NullValue) |
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retString = "null";
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else
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retString = "'" + doubleQuote(value) + "'"; |
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} else {
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retString = "null";
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} |
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return retString;
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} |
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/**
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* FIXME: Maybe we don't need to test if encoding to the database is possible or not. This conversion may be slow.
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* But in the other hand, the user may be able to store his data and don't loose all the changes...
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* @param obj
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* @return
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*/
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private String doubleQuote(Object obj) { |
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String aux = obj.toString().replaceAll("'", "''"); |
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StringBuffer strBuf = new StringBuffer(aux); |
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ByteArrayOutputStream out = new ByteArrayOutputStream(strBuf.length()); |
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String aux2 = "Encoding ERROR"; |
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try {
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PrintStream printStream = new PrintStream(out, true, toEncode); |
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printStream.print(aux); |
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aux2 = out.toString(toEncode); |
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// System.out.println(aux + " " + aux2);
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} catch (UnsupportedEncodingException e) { |
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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} |
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return aux2;
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} |
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/**
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* Based in code from JUMP (VividSolutions) and Geotools Things to be aware:
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* We always will use Spatial Tables with Unique ID. IFeature has the same
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* field order than dbLayerDef.getFieldNames()
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*
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* @param dbLayerDef
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* @param feat
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* @return
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* @throws SQLException
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* @throws ProcessVisitorException
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*/
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public String getSqlInsertFeature(DBLayerDefinition dbLayerDef, |
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IFeature feat) throws ProcessVisitorException {
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StringBuffer sqlBuf = new StringBuffer("INSERT INTO " |
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+ dbLayerDef.getComposedTableName() + " (");
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String sql = null; |
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int numAlphanumericFields = dbLayerDef.getFieldNames().length;
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for (int i = 0; i < numAlphanumericFields; i++) { |
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String name = dbLayerDef.getFieldsDesc()[i].getFieldName();
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// if (cols.contains(name) && (!name.equals(uniqueCol) ||
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// existsUnique)) {
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if (name.equals(dbLayerDef.getFieldID()))
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continue;
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sqlBuf.append(" " + "\""+name+"\"" + ","); |
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// }
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} |
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sqlBuf.append(" \"" + dbLayerDef.getFieldGeometry() + "\""); |
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// sqlBuf.deleteCharAt(sqlBuf.lastIndexOf(","));
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sqlBuf.append(" ) VALUES (");
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String insertQueryHead = sqlBuf.toString();
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sqlBuf = new StringBuffer(insertQueryHead); |
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for (int j = 0; j < numAlphanumericFields; j++) { |
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String name = dbLayerDef.getFieldsDesc()[j].getFieldName();
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if (name.equals(dbLayerDef.getFieldID()))
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continue;
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if (isNumeric(feat.getAttribute(j))){
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sqlBuf.append(feat.getAttribute(j) + ", ");
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}else if(feat.getAttribute(j).getSQLType() == Types.DATE){ |
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//If the field is a date, the driver can not use the client encoding.
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//It uses the same encoding that the user has written on the table
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sqlBuf.append(addQuotes(((DateValue)feat.getAttribute(j)).getValue().toString()) + ", ");
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}else{
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sqlBuf.append(addQuotes(feat.getAttribute(j)) + ", ");
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} |
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} |
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IGeometry geometry=feat.getGeometry(); |
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int type=dbLayerDef.getShapeType();
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if (geometry.getGeometryType()!=type){
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if (type==FShape.POLYGON){
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geometry=ShapeFactory.createPolygon2D(new GeneralPathX(geometry.getInternalShape()));
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}else if (type==FShape.LINE){ |
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geometry=ShapeFactory.createPolyline2D(new GeneralPathX(geometry.getInternalShape()));
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}else if (type==(FShape.POLYGON|FShape.Z)){ |
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geometry=ShapeFactory.createPolygon3D(new GeneralPathX(geometry.getInternalShape()),((IGeometry3D)geometry).getZs());
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}else if (type==(FShape.LINE|FShape.Z)){ |
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geometry=ShapeFactory.createPolyline3D(new GeneralPathX(geometry.getInternalShape()),((IGeometry3D)geometry).getZs());
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}else if (type==(FShape.LINE|FShape.M)){ //MCoord |
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geometry=ShapeMFactory.createPolyline2DM(new GeneralPathX(geometry.getInternalShape()),((IGeometryM)geometry).getMs()); //MCoord |
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} |
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} |
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if (!isCorrectGeometry(geometry, type))
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throw new ProcessVisitorException("incorrect_geometry",new Exception()); |
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//MCoord
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if (((type & FShape.M) != 0) && ((type & FShape.MULTIPOINT) == 0)) { |
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sqlBuf.append(" ST_GeometryFromText( '"
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+ ((FShapeM)geometry.getInternalShape()).toText() + "', "
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+ DefaultJDBCDriver.removePrefix(dbLayerDef.getSRID_EPSG()) + ")");
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} else
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//ZCoord
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if ((type & FShape.Z) != 0) { |
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if ((type & FShape.MULTIPOINT) != 0) { |
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//TODO: Metodo toText 3D o 2DM
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} else {
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//Its not a multipoint
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sqlBuf.append(" GeometryFromText( '"
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+ ((FShape3D)feat.getGeometry().getInternalShape()).toText() + "', "
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+ DefaultJDBCDriver.removePrefix(dbLayerDef.getSRID_EPSG()) + ")");
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} |
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} |
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//XYCoord
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else {
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Geometry jtsGeom=geometry.toJTSGeometry(); |
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if (jtsGeom==null || !isCorrectType(jtsGeom, type)){ |
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throw new ProcessVisitorException("incorrect_geometry",new Exception()); |
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} |
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//If they layer is a 2D layer writing a 2D geometry will throw an error
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//With st_force_3d it is avoid
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if (dbLayerDef.getDimension() == 3) sqlBuf.append("ST_Force_3D ("); |
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sqlBuf.append(" ST_GeometryFromText( '"
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+ jtsGeom.toText() + "', "
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+ DefaultJDBCDriver.removePrefix(dbLayerDef.getSRID_EPSG()) + ")");
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if (dbLayerDef.getDimension() == 3) sqlBuf.append(")"); |
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} |
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// sqlBuf.deleteCharAt(sqlBuf.lastIndexOf(","));
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sqlBuf.append(" ) ");
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sql = sqlBuf.toString(); |
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return sql;
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} |
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private boolean isCorrectType(Geometry jtsGeom, int type) { |
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if (FShape.POLYGON==type){
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if (!jtsGeom.getGeometryType().equals("MultiPolygon") && !jtsGeom.getGeometryType().equals("Polygon") ) |
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return false; |
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} |
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return true; |
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} |
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private boolean isCorrectGeometry(IGeometry geometry, int type) { |
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if (FShape.POLYGON==type){
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FPolygon2D polygon = (FPolygon2D)geometry.getInternalShape(); |
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if (!(polygon.getBounds2D().getWidth()>0 && polygon.getBounds2D().getHeight()>0)) |
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return false; |
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}else if (FShape.LINE==type){ |
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FPolyline2D line = (FPolyline2D)geometry.getInternalShape(); |
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if (!(line.getBounds2D().getWidth()>0 || line.getBounds2D().getHeight()>0)) |
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return false; |
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} |
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return true; |
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} |
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public String getSqlCreateIndex(DBLayerDefinition lyrDef) { |
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String indexName = lyrDef.getTableName() + "_" |
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+ lyrDef.getFieldGeometry() + "_gist";
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String sql = "CREATE INDEX \"" + indexName + "\" ON \"" |
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+ lyrDef.getComposedTableName() + "\" USING GIST (\""
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+ lyrDef.getFieldGeometry() + "\" GIST_GEOMETRY_OPS)";
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return sql;
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} |
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public String getSqlModifyFeature(DBLayerDefinition dbLayerDef, IFeature feat) { |
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/*
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UPDATE weather
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SET temp_hi = temp_hi - 2, temp_lo = temp_lo - 2
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WHERE date > '1994-11-28';
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*/
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StringBuffer sqlBuf = new StringBuffer("UPDATE " |
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+ dbLayerDef.getComposedTableName() + " SET");
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String sql = null; |
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int numAlphanumericFields = dbLayerDef.getFieldsDesc().length;
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for (int i = 0; i < numAlphanumericFields; i++) { |
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FieldDescription fldDesc = dbLayerDef.getFieldsDesc()[i]; |
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if (fldDesc != null) |
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{
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String name = fldDesc.getFieldName();
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// El campo gid no lo actualizamos.
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if (name.equalsIgnoreCase(dbLayerDef.getFieldID()))
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continue;
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Value val = feat.getAttribute(i); |
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if (val != null) |
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{
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String strAux = val.getStringValue(ValueWriter.internalValueWriter);
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sqlBuf.append(" " + "\""+name+"\"" + " = " + strAux + " ,"); |
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} |
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} |
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} |
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//If pos > 0 there is at least one field..
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int pos = sqlBuf.lastIndexOf(","); |
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if (pos > -1){ |
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sqlBuf.deleteCharAt(pos); |
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} |
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if (feat.getGeometry() != null) |
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{
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if (pos > -1){ |
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sqlBuf.append(",");
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} |
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sqlBuf.append(" \"" + dbLayerDef.getFieldGeometry() + "\""); |
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sqlBuf.append(" = ");
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//MCoord
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int type = feat.getGeometry().getGeometryType();
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if (((type & FShape.M) != 0) && ((type & FShape.MULTIPOINT) == 0)) { |
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sqlBuf.append(" ST_GeometryFromText( '"
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+ ((FShapeM)feat.getGeometry().getInternalShape()).toText() + "', "
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+ DefaultJDBCDriver.removePrefix(dbLayerDef.getSRID_EPSG()) + ")");
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} else
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//ZCoord
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if ((type & FShape.Z) != 0) { |
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if ((type & FShape.MULTIPOINT) != 0) { |
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//TODO: Metodo toText 3D o 2DM
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} else {
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//Its not a multipoint
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sqlBuf.append(" ST_GeometryFromText( '"
|
| 436 |
+ ((FShape3D)feat.getGeometry().getInternalShape()).toText() + "', "
|
| 437 |
+ DefaultJDBCDriver.removePrefix(dbLayerDef.getSRID_EPSG()) + ")");
|
| 438 |
} |
| 439 |
|
| 440 |
} |
| 441 |
|
| 442 |
//XYCoord
|
| 443 |
else{
|
| 444 |
|
| 445 |
//If they layer is a 2D layer writing a 2D geometry will throw an error
|
| 446 |
//With st_force_3d it is avoid
|
| 447 |
if (dbLayerDef.getDimension() == 3) sqlBuf.append("ST_Force_3D ("); |
| 448 |
|
| 449 |
sqlBuf.append(" ST_GeometryFromText( '"
|
| 450 |
+ feat.getGeometry().toJTSGeometry().toText() + "', "
|
| 451 |
+ DefaultJDBCDriver.removePrefix(dbLayerDef.getSRID_EPSG()) + ")");
|
| 452 |
|
| 453 |
if (dbLayerDef.getDimension() == 3) sqlBuf.append(")"); |
| 454 |
} |
| 455 |
} |
| 456 |
sqlBuf.append(" WHERE ");
|
| 457 |
sqlBuf.append(dbLayerDef.getFieldID() + " = " + feat.getID());
|
| 458 |
sql = sqlBuf.toString(); |
| 459 |
return sql;
|
| 460 |
|
| 461 |
} |
| 462 |
|
| 463 |
/**
|
| 464 |
* TODO: NECESITAMOS OTRO M?TODO PARA BORRAR CORRECTAMENTE.
|
| 465 |
* Esto provocar? errores, ya que getID que viene en un row no
|
| 466 |
* nos sirve dentro de un writer para modificar y/o borrar entidades
|
| 467 |
* Por ahora, cojo el ID del campo que me indica el dbLayerDef
|
| 468 |
* @param dbLayerDef
|
| 469 |
* @param row
|
| 470 |
* @return
|
| 471 |
*/
|
| 472 |
public String getSqlDeleteFeature(DBLayerDefinition dbLayerDef, IRow row) { |
| 473 |
// DELETE FROM weather WHERE city = 'Hayward';
|
| 474 |
// TODO: NECESITAMOS OTRO M?TODO PARA BORRAR CORRECTAMENTE.
|
| 475 |
// Esto provocar? errores, ya que getID que viene en un row no
|
| 476 |
// nos sirve dentro de un writer para modificar y/o borrar entidades
|
| 477 |
// Por ahora, cojo el ID del campo que me indica el dbLayerDev
|
| 478 |
StringBuffer sqlBuf = new StringBuffer("DELETE FROM " |
| 479 |
+ dbLayerDef.getComposedTableName() + " WHERE ");
|
| 480 |
String sql = null; |
| 481 |
int indexFieldId = dbLayerDef.getIdFieldID();
|
| 482 |
sqlBuf.append("\""+dbLayerDef.getFieldID()+"\"" + " = " + row.getAttribute(indexFieldId)); |
| 483 |
sql = sqlBuf.toString(); |
| 484 |
|
| 485 |
return sql;
|
| 486 |
} |
| 487 |
|
| 488 |
public String getEncoding() { |
| 489 |
return toEncode;
|
| 490 |
} |
| 491 |
public void setEncoding(String toEncode){ |
| 492 |
if (toEncode.compareToIgnoreCase("SQL_ASCII") == 0) { |
| 493 |
this.toEncode = "ASCII"; |
| 494 |
} else if (toEncode.compareToIgnoreCase("WIN1252") == 0) { |
| 495 |
this.toEncode = "Latin1"; |
| 496 |
} else if (toEncode.compareToIgnoreCase("UTF8") == 0) { |
| 497 |
this.toEncode = "UTF-8"; |
| 498 |
} else {
|
| 499 |
this.toEncode = toEncode;
|
| 500 |
} |
| 501 |
} |
| 502 |
|
| 503 |
static String escapeFieldName(String name){ |
| 504 |
if (!name.toLowerCase().equals(name)){
|
| 505 |
return "\""+name.trim()+"\""; |
| 506 |
} |
| 507 |
if (!name.matches("[a-z][\\d\\S\\w]*")){ |
| 508 |
return "\""+name.trim()+"\""; |
| 509 |
} |
| 510 |
if (name.indexOf(":")>0){ |
| 511 |
return "\""+name.trim()+"\""; |
| 512 |
} |
| 513 |
//si es una palabra reservada lo escapamos
|
| 514 |
if (PostgresReservedWords.isReserved(name)){
|
| 515 |
return "\""+name.trim()+"\""; |
| 516 |
} |
| 517 |
return name;
|
| 518 |
} |
| 519 |
} |