Application: gvSIG desktop

/**

 * gvSIG. Desktop Geographic Information System.

 *

 * Copyright (C) 2007-2013 gvSIG Association.

 *

 * 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 3

 * 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., 51 Franklin Street, Fifth Floor, Boston,

 * MA  02110-1301, USA.

 *

 * For any additional information, do not hesitate to contact us

 * at info AT gvsig.com, or visit our website www.gvsig.com.

 */

package org.gvsig.exportto.swing.impl.panel;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.util.Iterator;

import javax.swing.DefaultListModel;

import javax.swing.JOptionPane;

import javax.swing.event.ListSelectionEvent;

import javax.swing.event.ListSelectionListener;

import org.apache.commons.lang3.StringUtils;

import org.gvsig.exportto.ExporttoLocator;

import org.gvsig.exportto.ExporttoManager;

import org.gvsig.exportto.swing.impl.DefaultJExporttoServicePanel;

import org.gvsig.fmap.dal.DALLocator;

import org.gvsig.fmap.dal.DataManager;

import org.gvsig.fmap.dal.exception.DataException;

import org.gvsig.fmap.dal.exception.InitializeException;

import org.gvsig.fmap.dal.feature.FeatureStore;

import org.gvsig.gui.beans.wizard.panel.NotContinueWizardException;

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.dynobject.DynObject;

import org.gvsig.tools.dynobject.DynObjectManager;

import org.gvsig.tools.evaluator.Evaluator;

import org.gvsig.tools.evaluator.EvaluatorData;

import org.gvsig.tools.evaluator.EvaluatorException;

import org.gvsig.tools.i18n.I18nManager;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

/**

 * @author gvSIG Team

 * @version $Id$

 * 

 */

public class ExportFilterPanel extends ExportFilterPanelLayout {

    private static final long serialVersionUID = -2450969034747572624L;

    private static final Logger logger = LoggerFactory.getLogger(ExportFilterPanel.class);

    private FeatureStore store; 

    public ExportFilterPanel(DefaultJExporttoServicePanel exporttoServicePanel) {

        this.store = exporttoServicePanel.getFeatureStore();

        this.initComponents();

    }

    private static class FilterItem {

        private final String label;

        private final String value;

        public FilterItem(String label, String value) {

            this.label=label;

            this.value=value;

        }

        @Override

        public String toString() {

            return this.label;

        }

    }

    private void initComponents() {

        ExporttoManager manager = ExporttoLocator.getManager();

        DefaultListModel model = new DefaultListModel();

        Iterator filterNames = manager.getPredefinedFilters();

        while( filterNames.hasNext() ) {

            String name = (String) filterNames.next();

            String expresion = manager.getFilter(name);

            model.addElement(new FilterItem(name, expresion));

        }

        this.lstFilters.setModel(model);

        this.lstFilters.addListSelectionListener(new ListSelectionListener() {

            public void valueChanged(ListSelectionEvent lse) {

                doSelectFilter();

            }

        });

        ActionListener changeOptionAction = new ActionListener() {

            public void actionPerformed(ActionEvent e) {

                doChangeOption();

            }

        };

        this.rdbAllRows.addActionListener(changeOptionAction);

        this.rdbFilteredRows.addActionListener(changeOptionAction);

        this.rdbSelectedRows.addActionListener(changeOptionAction);

        this.rdoUseNewExpresion.addActionListener(changeOptionAction);

        this.rdoUseSavedExpresion.addActionListener(changeOptionAction);

        this.butTest.addActionListener(new ActionListener() {

            public void actionPerformed(ActionEvent e) {

                doTest();

            }

        });

        this.rdbAllRows.setSelected(true);

        doChangeOption();

        this.butFilterDialog.addActionListener(new ActionListener() {

            public void actionPerformed(ActionEvent e) {

                doShowFilterDialog();

            }

        });

    }

    private void doShowFilterDialog() {

    }

    protected void doSelectFilter() {

        FilterItem item = (FilterItem) this.lstFilters.getSelectedValue();

        if( item!=null ) {

            this.txtExpresion.setText(item.value);

            this.txtName.setText(item.label);

        }

    }

    private static class Data implements EvaluatorData {

        private final DynObject data;

        public Data(DynObject data) {

            this.data = data;

        }

        public Object getDataValue(String name) {

            if( this.data.getDynClass().getDynField(name)!=null ) {

                return this.data.getDynValue(name);

            }

            if( "defaultgeometry".equalsIgnoreCase(name) ) {

                // FIXME: deberia crear una geometris de agun tipo

                return null;

            }

            throw new RuntimeException("Identifier '"+name+"'not defined.");

        }

        public Object getContextValue(String name) {

            throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.

        }

        public Iterator getDataValues() {

            throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.

        }

        public Iterator getDataNames() {

            throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.

        }

        public boolean hasDataValue(String name) {

            if( "defaultgeometry".equalsIgnoreCase(name) ) {

                return true;

            }

            return  this.data.hasDynValue(name);

        }

        public boolean hasContextValue(String name) {

            throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.

        }

    }

    protected void doTest() {

        try {

            this.checkPanel(false);

            I18nManager i18nManager = ToolsLocator.getI18nManager();

            JOptionPane.showMessageDialog(this,

                    i18nManager.getTranslation("_Expresion_correcta"),

                    i18nManager.getTranslation("_Filter"),

                    JOptionPane.INFORMATION_MESSAGE

            );

        } catch (NotContinueWizardException ex) {

            I18nManager i18nManager = ToolsLocator.getI18nManager();

            JOptionPane.showMessageDialog(this,

                    ex.getMessage(), 

                    i18nManager.getTranslation("_Warning"),

                    JOptionPane.WARNING_MESSAGE

            );

        }

    }

    protected void doChangeOption(){

        if( this.rdbFilteredRows.isSelected() ) {

            this.rdoUseNewExpresion.setEnabled(true);

            this.rdoUseSavedExpresion.setEnabled(true);

            if( this.rdoUseSavedExpresion.isSelected() ) {

                this.lstFilters.setEnabled(true);

                this.txtName.setEnabled(false);

                this.txtExpresion.setEnabled(false);

                this.butTest.setEnabled(false);

                this.butFilterDialog.setEnabled(false);

            } else {

                this.rdoUseNewExpresion.setSelected(false);

                this.lstFilters.setEnabled(false);

                this.txtName.setEnabled(true);

                this.txtExpresion.setEnabled(true);

                this.butTest.setEnabled(true);

                this.butFilterDialog.setEnabled(true);

            }

        } else if( this.rdbSelectedRows.isSelected() ) {

            this.lstFilters.setEnabled(false);

            this.txtName.setEnabled(false);

            this.txtExpresion.setEnabled(false);

            this.butTest.setEnabled(false);

            this.butFilterDialog.setEnabled(false);

            this.rdoUseNewExpresion.setEnabled(false);

            this.rdoUseSavedExpresion.setEnabled(false);

        } else {

            this.rdbAllRows.setSelected(true);

            this.lstFilters.setEnabled(false);

            this.txtName.setEnabled(false);

            this.txtExpresion.setEnabled(false);

            this.butTest.setEnabled(false);

            this.butFilterDialog.setEnabled(false);

            this.rdoUseNewExpresion.setEnabled(false);

            this.rdoUseSavedExpresion.setEnabled(false);

        }

    } 

    public boolean isFullLayerSelected() {

        return this.rdbAllRows.isSelected();

    }

    public boolean isSelectedFeaturesSelected() {

        return this.rdbSelectedRows.isSelected();

    }

    public boolean isPersonalizedFilterSelected() {

        return this.rdbFilteredRows.isSelected();

    }

    public void checkPanel()  throws NotContinueWizardException {

        checkPanel(true);

    }

    public void checkPanel(boolean save)  throws NotContinueWizardException {

        if( this.rdbFilteredRows.isSelected() ) {

            I18nManager i18nManager = ToolsLocator.getI18nManager();

            String expresion = this.getFilterExpresion();

            if( expresion == null ) {

                throw new NotContinueWizardException(

                        i18nManager.getTranslation("_The_expresion_is_empty_Check_other_option_or_enter_a_expresion"), 

                        this, true

                );

            }

            Evaluator filter = this.getFilter();

            if( filter == null ) {

                throw new NotContinueWizardException(

                        i18nManager.getTranslation("_Problems_compiling_the_expesion_Check_the_sintax_Remember_use_SQL_expresion_sintax"), 

                        this, true

                );

            }

            DynObjectManager dynobjmanager = ToolsLocator.getDynObjectManager();

            try {

                DynObject values = dynobjmanager.createDynObject(this.store.getDefaultFeatureType());

                filter.evaluate(new Data(values));

            } catch (EvaluatorException ex) {

                throw new NotContinueWizardException(

                        i18nManager.getTranslation("_Check_the_sintax_Remember_use_SQL_expresion_sintax")

                        + "\n"

                        + ex.getCause().getMessage(), 

                        this, true

                );

            } catch (DataException ex) {

                logger.warn("Can't test expresion",ex);

                throw new NotContinueWizardException(

                        i18nManager.getTranslation("_Problems_to_create_a_data_set_to_test_the_expresion_See_register_for_more_information"), 

                        this, true

                );

            }

            if( save ) {

                String filterName = this.getFilterName();

                if( filterName!=null ) {

                    ExporttoManager manager = ExporttoLocator.getManager();

                    manager.addFilter(filterName, expresion);

                }

            }

        }

    }

    public Evaluator getFilter() {

        String filter = this.getFilterExpresion();

        if( filter == null ) {

            return null;

        }

        DataManager datamanager = DALLocator.getDataManager();

        try {

            Evaluator evaluator = datamanager.createExpresion(filter);

            return evaluator;

        } catch (InitializeException ex) {

            // Error de sintaxis en la expresion ???

            return null;

        }

    }

    public String getFilterExpresion() {

        String s = this.txtExpresion.getText();

        if( StringUtils.isBlank(s) ) {

            return null;

        }

        return s.trim();

    }

    public String getFilterName() {

        String s = this.txtName.getText();

        if( StringUtils.isBlank(s) ) {

            return null;

        }

        return s.trim();

    }

}