Application: gvSIG desktop

/*

 * Created on 10-nov-2005

 *

 * gvSIG. Sistema de Informacin Geogrfica 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 Ibez, 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

 */

/*

 * $log$

 */

package com.iver.gvsig.addeventtheme;

import java.awt.geom.Rectangle2D;

import java.io.IOException;

import com.hardcode.driverManager.DriverLoadException;

import com.hardcode.gdbms.driver.exceptions.ReadDriverException;

import com.hardcode.gdbms.driver.exceptions.ReloadDriverException;

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

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

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

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

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

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

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

import com.hardcode.gdbms.engine.data.edition.DataWare;

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

import com.iver.andami.PluginServices;

import com.iver.cit.gvsig.ProjectExtension;

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

import com.iver.cit.gvsig.fmap.core.FPoint2D;

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.drivers.BoundedShapes;

import com.iver.cit.gvsig.fmap.drivers.DriverAttributes;

import com.iver.cit.gvsig.fmap.drivers.VectorialDriver;

import com.iver.cit.gvsig.fmap.layers.LayerFactory;

import com.iver.cit.gvsig.fmap.layers.SelectableDataSource;

import com.iver.cit.gvsig.fmap.layers.XMLException;

import com.iver.utiles.IPersistance;

import com.iver.utiles.XMLEntity;

/**

 * The class AddEventThemeDriver allows to create a new FLayer from a

 * gvSIG DataSource.

 *

 * @author jmorell

 */

public class AddEventThemeDriver implements VectorialDriver, ObjectDriver, BoundedShapes, IPersistance, IDataSourceListener {

    private Rectangle2D fullExtent = null;

    private SelectableDataSource ds;

    private int xFieldIndex;

    private int yFieldIndex;

    /**

     * Initializes this.

     * @param ds

     * @param xFieldIndex

     * @param yFieldIndex

     * @throws ReadDriverException

     * @throws DriverException

     */

    public void setData(DataSource ds, int xFieldIndex, int yFieldIndex) throws ReadDriverException {

        this.ds = new SelectableDataSource(ds);

        this.ds.addDataSourceListener(this);

        this.xFieldIndex = xFieldIndex;

        this.yFieldIndex = yFieldIndex;

    }

    public int[] getFieldsIndex(){

            int[] n=new int[2];

            n[0]=xFieldIndex;

            n[1]=yFieldIndex;

            return n;

    }

    public int getShapeType() {

        return FShape.POINT;

    }

    public int getShapeCount() throws ReadDriverException {

        return (int) ds.getRowCount();

    }

    public DriverAttributes getDriverAttributes() {

        // TODO Auto-generated method stub

        return null;

    }

    private double getX(int row) throws ReadDriverException {

            try {

                    return (new Double(ds.getFieldValue((int)row, xFieldIndex).toString())).doubleValue();

            } catch(NumberFormatException e) {

                    return 0;

            }

    }

    private double getY(int row) throws ReadDriverException {

            try {

                    return (new Double(ds.getFieldValue((int)row, yFieldIndex).toString())).doubleValue();

            } catch(NumberFormatException e) {

                    return 0;

            }

    }

    public Rectangle2D getFullExtent() throws ReadDriverException {

                if (fullExtent == null) {

                        for (int i = 0; i < ds.getRowCount(); i++) {

                                double x = this.getX(i); // (new

                                                                                        // Double(((Value)ds.getFieldValue((int)i,

                                                                                        // xFieldIndex)).toString())).doubleValue();

                                double y = this.getY(i); // (new

                                                                                        // Double(((Value)ds.getFieldValue((int)i,

                                                                                        // yFieldIndex)).toString())).doubleValue();

                                FGeometry geometry = ShapeFactory.createGeometry(new FPoint2D(

                                                x, y));

                                Rectangle2D rect = geometry.getBounds2D();

                                if (fullExtent == null) {

                                        fullExtent = rect;

                                } else {

                                        fullExtent.add(rect);

                                }

                        }

                }

                return fullExtent;

        }

    public IGeometry getShape(int index) throws ReadDriverException{

        double x;

        double y;

        try {

            x = this.getX(index); // (new

                                                                        // Double(((Value)ds.getFieldValue(index,

                                                                        // xFieldIndex)).toString())).doubleValue();

            y = this.getY(index); //(new Double(((Value)ds.getFieldValue(index, yFieldIndex)).toString())).doubleValue();

            //System.err.println("La X = "+x+" , La Y = "+y);

            FGeometry geometry = ShapeFactory.createGeometry(new FPoint2D(x, y));

            return geometry;

        } catch (NumberFormatException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        }

        return null;

    }

    public String getName() {

        return "Add Event Layer Driver";

    }

    public int[] getPrimaryKeys() {

        // TODO Auto-generated method stub

        return null;

    }

    public void write(DataWare dataWare) {

        // TODO Auto-generated method stub

    }

    public void setDataSourceFactory(DataSourceFactory arg0) {

        // TODO Auto-generated method stub

    }

    public Value getFieldValue(long rowIndex, int fieldId) throws ReadDriverException {

        return ds.getFieldValue(rowIndex, fieldId);

    }

    public int getFieldCount() throws ReadDriverException {

        return ds.getFieldCount();

    }

    public String getFieldName(int fieldId) throws ReadDriverException {

        return ds.getFieldName(fieldId);

    }

    public long getRowCount() throws ReadDriverException {

        return ds.getRowCount();

    }

    public int getFieldType(int i) throws ReadDriverException {

        return ds.getFieldType(i);

    }

    public String getClassName() {

        return this.getClass().getName();

    }

    // Para guardar en el xml file

    public XMLEntity getXMLEntity() {

        XMLEntity xml = new XMLEntity();

        xml.putProperty("className", this.getClass().getName());

        xml.putProperty("xFieldIndex", xFieldIndex);

        xml.putProperty("yFieldIndex", yFieldIndex);

        xml.putProperty("tableName", ds.getName());

        XMLEntity dsXML = null;

                dsXML = this.getDataSourceXML();

                if (dsXML != null) {

                        xml.putProperty("hasDSInfo", true);

                        xml.addChild(dsXML);

                } else {

                        xml.putProperty("hasDSInfo", false);

                }

                return xml;

    }

    // Para recuperar del xml file

    public void setXMLEntity(XMLEntity xml) {

        int xFieldIndex = xml.getIntProperty("xFieldIndex");

        int yFieldIndex = xml.getIntProperty("yFieldIndex");

        String tableName = xml.getStringProperty("tableName");

        DataSource ds;

        try {

            ds = LayerFactory.getDataSourceFactory().createRandomDataSource(tableName, DataSourceFactory.AUTOMATIC_OPENING);

//          Intentar reconstruir el DS!!!!!!!!!!

                    ds = this.getDataSourceFromXML(xml.getChild(0));

                    setData(ds, xFieldIndex, yFieldIndex);

        } catch (NoSuchTableException e) {

                if (!xml.contains("hasDSInfo") || !xml.getBooleanProperty("hasDSInfo")) {

                        // No esta registrado el DS y no tenemos su informacion en el

                        // xml (proyecto viejo)... no podemos arreglarlo

                        throw new RuntimeException(e);

                }

        } catch (DriverLoadException e) {

                throw new RuntimeException(e);

        } catch (ReadDriverException e) {

                throw new RuntimeException(e);

        }

    }

        public int getFieldWidth(int i) throws ReadDriverException {

                return ds.getFieldWidth(i);

        }

        public Rectangle2D getShapeBounds(int index) throws ReadDriverException {

                return getShape(index).getBounds2D();

        }

        public int getShapeType(int index) throws ReadDriverException {

                return getShape(index).getGeometryType();

        }

        public boolean isWritable() {

                return true;

        }

        public void reloaded(DataSource dataSource) {

                this.fullExtent = null;

        }

        public void reload() throws ReloadDriverException{

                this.ds.reload();

        }

    private XMLEntity getDataSourceXML() {

            SourceInfo di = this.ds.getSourceInfo();

            ProjectExtension ext = (ProjectExtension) PluginServices.getExtension(ProjectExtension.class);

            return ext.getProject().getSourceInfoXMLEntity(di);

    }

    private DataSource getDataSourceFromXML(XMLEntity xml) throws DriverLoadException, ReadDriverException, NoSuchTableException{

                if (xml.getStringProperty("type").equals("otherDriverFile")) {

                        LayerFactory.getDataSourceFactory().addFileDataSource(xml.getStringProperty(

                                        "driverName"), xml.getStringProperty("gdbmsname"),

                                xml.getStringProperty("file"));

                } else if (xml.getStringProperty("type").equals("sameDriverFile")) {

                } else if (xml.getStringProperty("type").equals("db")) {

                        LayerFactory.getDataSourceFactory().addDBDataSourceByTable(xml.getStringProperty(

                                        "gdbmsname"), xml.getStringProperty("host"),

                                xml.getIntProperty("port"),

                                xml.getStringProperty("user"),

                                xml.getStringProperty("password"),

                                xml.getStringProperty("dbName"),

                                xml.getStringProperty("tableName"),

                                xml.getStringProperty("driverInfo"));

                }

                DataSource ds = LayerFactory.getDataSourceFactory().createRandomDataSource(xml.getStringProperty(

                "gdbmsname"), DataSourceFactory.AUTOMATIC_OPENING);

                return ds;

    }

}