root / branches / v10 / applications / appgvSIG / src / com / iver / cit / gvsig / FiltroExtension.java @ 9563
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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; |
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import java.awt.Component; |
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import java.io.IOException; |
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import javax.swing.JOptionPane; |
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import com.hardcode.driverManager.DriverLoadException; |
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import com.hardcode.gdbms.engine.data.DataSource; |
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import com.hardcode.gdbms.engine.data.DataSourceFactory; |
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import com.hardcode.gdbms.engine.instruction.EvaluationException; |
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import com.hardcode.gdbms.engine.instruction.SemanticException; |
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import com.hardcode.gdbms.parser.ParseException; |
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import com.iver.andami.PluginServices; |
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import com.iver.andami.messages.NotificationManager; |
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import com.iver.andami.plugins.Extension; |
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import com.iver.andami.ui.mdiManager.IWindow; |
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import com.iver.cit.gvsig.fmap.DriverException; |
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import com.iver.cit.gvsig.fmap.layers.FBitSet; |
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import com.iver.cit.gvsig.fmap.layers.FLayer; |
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import com.iver.cit.gvsig.fmap.layers.LayerFactory; |
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import com.iver.cit.gvsig.fmap.layers.SelectableDataSource; |
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import com.iver.cit.gvsig.fmap.layers.layerOperations.AlphanumericData; |
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import com.iver.cit.gvsig.gui.filter.DefaultExpressionDataSource; |
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import com.iver.cit.gvsig.gui.filter.ExpressionListener; |
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import com.iver.cit.gvsig.gui.filter.FilterDialog; |
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import com.iver.cit.gvsig.project.documents.table.gui.Table; |
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import com.iver.cit.gvsig.project.documents.view.IProjectView; |
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import com.iver.utiles.exceptionHandling.ExceptionListener; |
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/**
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* Extensi?n que abre un di?logo para poder hacer un filtro de una capa o tabla.
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*
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* @author Vicente Caballero Navarro
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*/
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public class FiltroExtension extends Extension implements ExpressionListener { |
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protected SelectableDataSource dataSource = null; |
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protected Table vista;
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private String filterTitle; |
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/**
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* DOCUMENT ME!
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*/
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public void initialize() { |
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} |
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/**
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* DOCUMENT ME!
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*
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* @param actionCommand DOCUMENT ME!
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*/
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public void execute(String actionCommand) { |
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if ("FILTRO".equals(actionCommand)) { |
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try {
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IWindow v = PluginServices.getMDIManager().getActiveWindow(); |
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if (v instanceof Table) { |
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vista = (Table) v; |
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dataSource = (SelectableDataSource)vista.getModel().getModelo().getRecordset(); |
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filterTitle = vista.getModel().getName(); |
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} else if (v instanceof com.iver.cit.gvsig.project.documents.view.gui.View) { |
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IProjectView pv = ((com.iver.cit.gvsig.project.documents.view.gui.View) v).getModel(); |
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filterTitle = ((com.iver.cit.gvsig.project.documents.view.gui.View) v).getModel().getName(); |
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FLayer layer = pv.getMapContext() |
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.getLayers().getActives()[0];
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dataSource = pv.getProject().getDataSourceByLayer(layer); |
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} |
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} catch (DriverException e) {
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NotificationManager.addError("Error filtrando", e);
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} |
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doExecute(); |
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} |
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} |
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/**
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* "execute" method action.
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*
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*/
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protected void doExecute(){ |
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try{
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DefaultExpressionDataSource ds = new DefaultExpressionDataSource();
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ds.setTable(dataSource); |
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FilterDialog dlg = new FilterDialog(filterTitle);
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dlg.addExpressionListener(this);
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dlg.addExceptionListener(new ExceptionListener() { |
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public void exceptionThrown(Throwable t) { |
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NotificationManager.addError(t.getMessage(), t); |
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} |
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}); |
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dlg.setModel(ds); |
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PluginServices.getMDIManager().addWindow(dlg); |
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} catch (DriverLoadException e) {
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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} |
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} |
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/**
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* DOCUMENT ME!
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*
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* @return DOCUMENT ME!
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*/
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public boolean isEnabled() { |
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IWindow v = PluginServices.getMDIManager().getActiveWindow(); |
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if (v == null) { |
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return false; |
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} |
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if (v instanceof Table) { |
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return true; |
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} else {
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if (v instanceof com.iver.cit.gvsig.project.documents.view.gui.View) { |
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com.iver.cit.gvsig.project.documents.view.gui.View view = (com.iver.cit.gvsig.project.documents.view.gui.View) v; |
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IProjectView pv = view.getModel(); |
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FLayer[] seleccionadas = pv.getMapContext().getLayers()
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.getActives(); |
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if (seleccionadas.length == 1) { |
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if (seleccionadas[0].isAvailable() && seleccionadas[0] instanceof AlphanumericData) { |
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return true; |
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} |
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} |
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} |
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return false; |
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} |
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} |
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/**
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* DOCUMENT ME!
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*
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* @return DOCUMENT ME!
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*/
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public boolean isVisible() { |
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IWindow v = PluginServices.getMDIManager().getActiveWindow(); |
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if (v == null) { |
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return false; |
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} |
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if (v instanceof Table) { |
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return true; |
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} else {
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if (v instanceof com.iver.cit.gvsig.project.documents.view.gui.View) { |
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com.iver.cit.gvsig.project.documents.view.gui.View view = (com.iver.cit.gvsig.project.documents.view.gui.View) v; |
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IProjectView pv = view.getModel(); |
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FLayer[] seleccionadas = pv.getMapContext().getLayers()
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.getActives(); |
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if (seleccionadas.length == 1) { |
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if (seleccionadas[0] instanceof AlphanumericData) { |
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return true; |
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} |
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} |
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} |
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return false; |
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} |
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} |
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/**
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* DOCUMENT ME!
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*
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* @param expression DOCUMENT ME!
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*/
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public void newSet(String expression) { |
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// By Pablo: if no filter expression -> no element selected
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if (! this.filterExpressionFromWhereIsEmpty(expression)) { |
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try {
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long[] sel = doSet(expression); |
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if (sel == null) { |
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//throw new RuntimeException("Not a 'where' clause?");
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return;
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} |
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FBitSet selection = new FBitSet();
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for (int i = 0; i < sel.length; i++) { |
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selection.set((int) sel[i]);
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} |
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dataSource.clearSelection(); |
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dataSource.setSelection(selection); |
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}catch(Exception e){ |
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JOptionPane.showMessageDialog((Component)PluginServices.getMainFrame(), "Asegurate de que la consulta es correcta."); |
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} |
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} |
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else {
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// By Pablo: if no expression -> no element selected
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dataSource.clearSelection(); |
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} |
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} |
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/**
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* @see com.iver.cit.gvsig.gui.filter.ExpressionListener#newSet(java.lang.String)
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*/
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private long[] doSet(String expression) { |
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try {
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DataSource ds = LayerFactory.getDataSourceFactory().executeSQL(expression,
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DataSourceFactory.MANUAL_OPENING); |
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return ds.getWhereFilter();
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} catch (DriverLoadException e) {
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NotificationManager.addError("Error cargando el driver", e);
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} catch (com.hardcode.gdbms.engine.data.driver.DriverException e) {
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NotificationManager.addError("Error accediendo al driver", e);
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} catch (ParseException e) { |
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NotificationManager.addError("Parse error", e);
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} catch (SemanticException e) {
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NotificationManager.addError(e.getMessage(), e); |
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} catch (IOException e) { |
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NotificationManager.addError("GDBMS internal error", e);
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} catch (EvaluationException e) {
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NotificationManager.addError("Sintaxis incorrecta", e);
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} |
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return null; |
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} |
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/**
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* DOCUMENT ME!
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*
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* @param expression DOCUMENT ME!
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*/
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public void addToSet(String expression) { |
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// By Pablo: if no filter expression -> don't add more elements to set
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if (! this.filterExpressionFromWhereIsEmpty(expression)) { |
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long[] sel = doSet(expression); |
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if (sel == null) { |
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//throw new RuntimeException("Not a 'where' clause?");
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return;
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} |
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FBitSet selection = new FBitSet();
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for (int i = 0; i < sel.length; i++) { |
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selection.set((int) sel[i]);
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} |
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FBitSet fbs = dataSource.getSelection(); |
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fbs.or(selection); |
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dataSource.setSelection(fbs); |
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} |
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} |
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/**
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* DOCUMENT ME!
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*
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* @param expression DOCUMENT ME!
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*/
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public void fromSet(String expression) { |
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// By Pablo: if no filter expression -> no element selected
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if (! this.filterExpressionFromWhereIsEmpty(expression)) { |
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long[] sel = doSet(expression); |
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if (sel == null) { |
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throw new RuntimeException("Not a 'where' clause?"); |
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} |
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FBitSet selection = new FBitSet();
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for (int i = 0; i < sel.length; i++) { |
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selection.set((int) sel[i]);
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} |
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FBitSet fbs = dataSource.getSelection(); |
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fbs.and(selection); |
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dataSource.setSelection(fbs); |
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} |
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else {
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// By Pablo: if no expression -> no element selected
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dataSource.clearSelection(); |
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} |
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} |
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/**
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* Returns true if the WHERE subconsultation of the filterExpression is empty ("")
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*
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* @author Pablo Piqueras Bartolom? (p_queras@hotmail.com)
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* @param expression An string
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* @return A boolean value
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*/
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private boolean filterExpressionFromWhereIsEmpty(String expression) { |
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String subExpression = expression.trim();
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int pos;
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// Remove last ';' if exists
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if (subExpression.charAt(subExpression.length() -1) == ';') |
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subExpression = subExpression.substring(0, subExpression.length() -1).trim(); |
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// If there is no 'where' clause
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if ((pos = subExpression.indexOf("where")) == -1) |
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return false; |
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// If there is no subexpression in the WHERE clause -> true
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subExpression = subExpression.substring(pos + 5, subExpression.length()).trim(); // + 5 is the length of 'where' |
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if ( subExpression.length() == 0 ) |
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return true; |
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else
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return false; |
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} |
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} |