svn-gvsig-desktop / trunk / extensions / extJDBC / src / com / iver / cit / gvsig / fmap / drivers / jdbc / postgis / PostGIS.java @ 25516
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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.sql.Types; |
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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.fmap.core.FShape; |
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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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/**
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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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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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PrintStream printStream = new PrintStream(out); |
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printStream.print(aux); |
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String aux2 = "ERROR"; |
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try {
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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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*/
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public String getSqlInsertFeature(DBLayerDefinition dbLayerDef, |
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IFeature feat) {
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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
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sqlBuf.append(addQuotes(feat.getAttribute(j)) + ", ");
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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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//MCoord
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if ((type == (FShape.LINE|FShape.M)) || (type == (FShape.POINT|FShape.M))){
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sqlBuf.append(" 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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sqlBuf.append(" GeometryFromText( '"
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+ geometry.toJTSGeometry().toText() + "', "
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+ DefaultJDBCDriver.removePrefix(dbLayerDef.getSRID_EPSG()) + ")");
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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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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.LINE|FShape.M)) || (type == (FShape.POINT|FShape.M))){
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sqlBuf.append(" 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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sqlBuf.append(" GeometryFromText( '"
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+ feat.getGeometry().toJTSGeometry().toText() + "', "
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+ DefaultJDBCDriver.removePrefix(dbLayerDef.getSRID_EPSG()) + ")");
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} |
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} |
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sqlBuf.append(" WHERE ");
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sqlBuf.append(dbLayerDef.getFieldID() + " = " + feat.getID());
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sql = sqlBuf.toString(); |
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return sql;
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} |
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/**
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* TODO: NECESITAMOS OTRO M?TODO PARA BORRAR CORRECTAMENTE.
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* Esto provocar? errores, ya que getID que viene en un row no
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* nos sirve dentro de un writer para modificar y/o borrar entidades
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* Por ahora, cojo el ID del campo que me indica el dbLayerDef
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* @param dbLayerDef
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* @param row
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* @return
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*/
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public String getSqlDeleteFeature(DBLayerDefinition dbLayerDef, IRow row) { |
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// DELETE FROM weather WHERE city = 'Hayward';
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// TODO: NECESITAMOS OTRO M?TODO PARA BORRAR CORRECTAMENTE.
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// Esto provocar? errores, ya que getID que viene en un row no
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// nos sirve dentro de un writer para modificar y/o borrar entidades
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// Por ahora, cojo el ID del campo que me indica el dbLayerDev
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StringBuffer sqlBuf = new StringBuffer("DELETE FROM " |
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+ dbLayerDef.getComposedTableName() + " WHERE ");
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String sql = null; |
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int indexFieldId = dbLayerDef.getIdFieldID();
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sqlBuf.append(dbLayerDef.getFieldID() + " = " + row.getAttribute(indexFieldId));
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sql = sqlBuf.toString(); |
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return sql;
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} |
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public String getEncoding() { |
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return toEncode;
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} |
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public void setEncoding(String toEncode){ |
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if (toEncode.compareToIgnoreCase("SQL_ASCII") == 0){ |
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this.toEncode = "ASCII"; |
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} else {
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this.toEncode = toEncode;
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} |
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} |
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} |