Application: gvSIG desktop

package com.iver.cit.gvsig;

import java.io.IOException;

import java.util.BitSet;

import com.hardcode.driverManager.DriverLoadException;

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

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

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

import com.hardcode.gdbms.engine.instruction.EvaluationException;

import com.hardcode.gdbms.engine.instruction.SemanticException;

import com.hardcode.gdbms.parser.ParseException;

import com.iver.andami.PluginServices;

import com.iver.andami.messages.NotificationManager;

import com.iver.andami.plugins.Extension;

import com.iver.andami.ui.mdiManager.View;

import com.iver.cit.gvsig.gui.Table;

/**

 * @author Fernando Gonz?lez Cort?s 

 */

public class TableFieldOperations extends Extension{

    /**

     * @see com.iver.andami.plugins.IExtension#initialize()

     */

    public void initialize() {

    }

    /**

     * @see com.iver.andami.plugins.IExtension#execute(java.lang.String)

     */

    public void execute(String actionCommand) {

                View v = PluginServices.getMDIManager().getActiveView();

                if (v != null) {

                        if (v.getClass() == Table.class) {

                            Table table = (Table) v;

                            doExecute(actionCommand,table);

            }

                }

    }

    /**

     * "execute" method acction

     * @param actionCommand

     * The acction command that executes this method

     * @param table

     * Table to operate

     */

        protected void doExecute(String actionCommand,Table table){

                int fieldIndex = table.getSelectedFieldIndices().nextSetBit(0);

        DataSource sds=null;

                try {

                        sds = table.getModel().getModelo().getRecordset();

                } catch (DriverLoadException e1) {

                        // TODO Auto-generated catch block

                        e1.printStackTrace();

                }

            String dsName = sds.getName();

            try {

            String sql = "select * from '" + dsName + "' order by " + sds.getFieldName(fieldIndex);

            if ("ORDERASC".equals(actionCommand)){

                sql += " asc;";

                    }else{

                sql += " desc;";

                    }

                    DataSource ds = sds.getDataSourceFactory().executeSQL(sql, DataSourceFactory.AUTOMATIC_OPENING);

                    table.setOrder(ds.getWhereFilter());

                } catch (DriverException e) {

            NotificationManager.addError("No se pudo ordenar", e);

        } catch (ParseException e) {

            throw new RuntimeException(e);

        } catch (DriverLoadException e) {

            NotificationManager.addError("Error con la carga de drivers", e);

        } catch (SemanticException e) {

            throw new RuntimeException(e);

        } catch (IOException e) {

            throw new RuntimeException(e);

        } catch (EvaluationException e) {

            throw new RuntimeException(e);

        }

        }

    /**

     * @see com.iver.andami.plugins.IExtension#isEnabled()

     */

    public boolean isEnabled() {

                View v = PluginServices.getMDIManager().getActiveView();

                if (v == null) {

                        return false;

                }

                if (v.getClass() == Table.class) {

                    Table t = (Table) v;

                    BitSet indices = t.getSelectedFieldIndices();

                    if (indices.cardinality() == 1){

                        return true;

                    }

                }

                return false;

    }

    /**

     * @see com.iver.andami.plugins.IExtension#isVisible()

     */

    public boolean isVisible() {

                View v = PluginServices.getMDIManager().getActiveView();

                if (v == null) {

                        return false;

                }

                if (v.getClass() == Table.class) {

                    return true;

                }

                return false;

    }

}