Application: gvSIG desktop

/*

 * Created on 27-dic-2004

 *

 * TODO To change the template for this generated file go to

 * Window - Preferences - Java - Code Generation - Code and Comments

 */

/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

 *

 * For more information, contact:

 *

 *  Generalitat Valenciana

 *   Conselleria d'Infraestructures i Transport

 *   Av. Blasco Ib??ez, 50

 *   46010 VALENCIA

 *   SPAIN

 *

 *      +34 963862235

 *   gvsig@gva.es

 *      www.gvsig.gva.es

 *

 *    or

 *

 *   IVER T.I. S.A

 *   Salamanca 50

 *   46005 Valencia

 *   Spain

 *

 *   +34 963163400

 *   dac@iver.es

 */

package com.iver.cit.gvsig.fmap.drivers;

import java.awt.geom.Rectangle2D;

import java.io.IOException;

import java.sql.Types;

import java.util.ArrayList;

import java.util.Date;

import javax.swing.table.DefaultTableModel;

import com.hardcode.gdbms.engine.data.DataSourceFactory;

import com.hardcode.gdbms.engine.data.driver.DriverException;

import com.hardcode.gdbms.engine.data.driver.ObjectDriver;

import com.hardcode.gdbms.engine.values.StringValue;

import com.hardcode.gdbms.engine.values.Value;

import com.iver.cit.gvsig.fmap.core.FShape;

import com.iver.cit.gvsig.fmap.core.IGeometry;

import com.iver.cit.gvsig.fmap.core.ShapeFactory;

import com.iver.cit.gvsig.fmap.operations.strategies.MemoryShapeInfo;

/**

 * Clase abstracta para Driver en memoria.

 *

 * @author FJP

 */

public abstract class MemoryDriver implements VectorialDriver, ObjectDriver,

        BoundedShapes {

        private MemoryShapeInfo memShapeInfo = new MemoryShapeInfo();

        private ArrayList arrayGeometries = new ArrayList();

        private Rectangle2D fullExtent;

        private int m_Position;

        private DefaultTableModel m_TableModel = new DefaultTableModel();

        private int[] fieldWidth=null;

        /**

         * Devuelve el modelo de la tabla.

         *

         * @return modelo de la tabla.

         */

        public DefaultTableModel getTableModel() {

                return m_TableModel;

        }

        /**

         * A?ade un shape.

         *

         * @param geom shape.

         * @param row fila.

         */

        public void addGeometry(IGeometry geom, Object[] row) {

                if (geom == null) {

                        return; // No a?adimos nada

                }

                Rectangle2D boundsShp = geom.getBounds();

                memShapeInfo.addShapeInfo(boundsShp, geom.getGeometryType());

                arrayGeometries.add(geom);

                if (fieldWidth==null) {

                        initializeFieldWidth(row);

                }

                actualizeFieldWidth(row);

                m_TableModel.addRow(row);

                try {

                        fullExtent = getFullExtent();

                } catch (IOException e) {

                        e.printStackTrace();

                }

                if (fullExtent == null) {

                        fullExtent = boundsShp;

                } else {

                        fullExtent.add(boundsShp);

                }

                m_Position++;

        }

        /**

         * M?todo de conveniencia, para poder a?adir directamente un shape

         * o una IGeometry. (Arriba est? el de a?adir una IGeometry.

         * @param shp

         * @param row

         */

        public void addShape(FShape shp, Object[] row) {

                if (shp == null) {

                        return; // No a?adimos nada

                }

                IGeometry geom = ShapeFactory.createGeometry(shp);

                addGeometry(geom, row);

        }

        /**

         * Devuelve el extent a partir de un ?ndice.

         *

         * @param index ?ndice.

         *

         * @return Extent.

         *

         * @throws IOException

         */

        public Rectangle2D getShapeBounds(int index) throws IOException {

                return memShapeInfo.getBoundingBox(index);

        }

        /**

         * Devuelve el tipo del shape.

         *

         * @param index ?ndice.

         *

         * @return tipo del shape.

         */

        public int getShapeType(int index) {

                return memShapeInfo.getType(index);

        }

        /* (non-Javadoc)

         * @see com.iver.cit.gvsig.fmap.drivers.VectorialDriver#getShape(int)

         */

        public IGeometry getShape(int index) {

                IGeometry geom = (IGeometry) arrayGeometries.get(index);

                return geom.cloneGeometry();

        }

        /* (non-Javadoc)

         * @see com.iver.cit.gvsig.fmap.drivers.VectorialDriver#getShapeCount()

         */

        public int getShapeCount() throws IOException {

                return arrayGeometries.size();

        }

        /* (non-Javadoc)

         * @see com.iver.cit.gvsig.fmap.drivers.VectorialDriver#getFullExtent()

         */

        public Rectangle2D getFullExtent() throws IOException {

                return fullExtent;

        }

        /* (non-Javadoc)

         * @see com.iver.cit.gvsig.fmap.drivers.VectorialDriver#getShapeType()

         */

        public abstract int getShapeType();

        /* (non-Javadoc)

         * @see com.hardcode.driverManager.Driver#getName()

         */

        public abstract String getName();

        /**

         * @see com.hardcode.gdbms.engine.data.ReadDriver#getFieldType(int)

         */

/*

 * azabala, bug 666

 * Habra que estudiar como hacer, porque si una fila tiene el primer valor

 * (o todos) a NullValue, devolvera como tipo de dato Types.NULL.

 * Quizas, habra que hacer que los MemoryDriver tb tengan un ITableDefinition.

 *

 * DxfMemoryDriver no obstante si que tiene informacion sobre el esquema, asi

 * que debera sobreescribir este metodo para salvar el bug

 * (metodo getTableDefinition)

 *

 *

 *

 *

 */

        public int getFieldType(int i) throws DriverException {

            // TODO: Revisar esto. Por ejemplo, el long

            if (getRowCount() > 1)

        {

            Value val = getFieldValue(0,i);

            if (val.getSQLType() == Types.INTEGER)

                // Sabemos que es num?rico, pero no sabemos

                // si luego habr? otra cosa.

                return Types.FLOAT;

            else

                return val.getSQLType();

        }

        else

        {

            // TODO: ESTO CREO QUE NO TIENE SENTIDO. SIEMPRE DEVUELVE Object.class, lo dice en

            // la documentaci?n. Creo que habr?a que quitarlo.

                if (m_TableModel.getColumnClass(i) == String.class)

                    return Types.VARCHAR;

                if (m_TableModel.getColumnClass(i) == Float.class)

                    return Types.FLOAT;

                if (m_TableModel.getColumnClass(i) == Double.class)

                    return Types.DOUBLE;

                if (m_TableModel.getColumnClass(i) == Double.class)

                    return Types.INTEGER;

                if (m_TableModel.getColumnClass(i) == Float.class)

                    return Types.INTEGER;

                if (m_TableModel.getColumnClass(i) == Boolean.class)

                    return Types.BIT;

                if (m_TableModel.getColumnClass(i) == Date.class)

                    return Types.DATE;

        }

            return Types.VARCHAR;

            // return m_TableModel.getColumnClass(i);

//            throw new DriverException("Tipo no soportado: " + m_TableModel.getColumnClass(i).getName());

        }

        /* (non-Javadoc)

         * @see com.hardcode.gdbms.engine.data.ReadDriver#getFieldValue(long, int)

         */

        public Value getFieldValue(long rowIndex, int fieldId)

                throws DriverException {

                return (Value) m_TableModel.getValueAt((int) rowIndex, fieldId);

        }

        /* (non-Javadoc)

         * @see com.hardcode.gdbms.engine.data.ReadDriver#getFieldCount()

         */

        public int getFieldCount() throws DriverException {

                return m_TableModel.getColumnCount();

        }

        /* (non-Javadoc)

         * @see com.hardcode.gdbms.engine.data.ReadDriver#getFieldName(int)

         */

        public String getFieldName(int fieldId) throws DriverException {

                return m_TableModel.getColumnName(fieldId);

        }

        /* (non-Javadoc)

         * @see com.hardcode.gdbms.engine.data.ReadDriver#getRowCount()

         */

        public long getRowCount() throws DriverException {

                return arrayGeometries.size();

        }

    /* (non-Javadoc)

     * @see com.hardcode.gdbms.engine.data.driver.GDBMSDriver#setDataSourceFactory(com.hardcode.gdbms.engine.data.DataSourceFactory)

     */

    public void setDataSourceFactory(DataSourceFactory dsf) {

    }

    /* (non-Javadoc)

     * @see com.iver.cit.gvsig.fmap.drivers.VectorialDriver#reLoad()

     */

    public void reload() throws DriverException, IOException {

                memShapeInfo = new MemoryShapeInfo();

                arrayGeometries.clear();

                m_TableModel= new DefaultTableModel();

                fullExtent = null;

                m_Position = 0;

    }

    private void initializeFieldWidth(Object[] row) {

            fieldWidth=new int[row.length];

                for (int i=0;i<row.length;i++) {

                        fieldWidth[i]=((Value)row[i]).getWidth();

                }

    }

    /**

     * Actualize the width fields with StringValue.

     * @param row

     */

    private void actualizeFieldWidth(Object[] row) {

            for (int i=0;i<row.length;i++) {

                        if (row[i] instanceof StringValue) {

                                int width=((StringValue)row[i]).getWidth();

                                if (fieldWidth[i]<width) {

                                        fieldWidth[i]=width;

                                }

                        }

                }

    }

    public int getFieldWidth(int fieldId){

            if (fieldWidth==null)

                    return 1;

            return fieldWidth[fieldId];

    }

}