/*
 * HistoryCommand.java
 *
 * Copyright (C) 2002-2013 Takis Diakoumis
 *
 * 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 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, see <http://www.gnu.org/licenses/>.
 *
 */

package org.executequery.actions.queryeditor;

import java.awt.event.ActionEvent;
import java.util.Vector;

import javax.swing.SwingUtilities;

import org.executequery.GUIUtilities;
import org.executequery.gui.editor.SQLHistoryDialog;
import org.executequery.repository.RepositoryCache;
import org.executequery.repository.SqlCommandHistoryRepository;

/** 
 * <p>The Query Editor's history command execution.
 *
 * @author   Takis Diakoumis
 * @version  $Revision: 1221 $
 * @date     $Date: 2013-03-10 23:07:28 +1100 (Sun, 10 Mar 2013) $
 */
public class HistoryCommand extends AbstractQueryEditorCommand {

    public void execute(ActionEvent e) {

        if (isQueryEditorTheCentralPanel()) {

            SwingUtilities.invokeLater(new Runnable() {
                public void run() {
    
                    Vector<String> history = 
                        sqlCommandHistoryRepository().getSqlCommandHistory();

                    if (history == null || history.isEmpty()) {
                        
                        GUIUtilities.displayInformationMessage("No SQL command history available");
                        return;
                    } 

                    new SQLHistoryDialog(history, queryEditor());
                }
            });
            
        }

    }
    
    private SqlCommandHistoryRepository sqlCommandHistoryRepository() {

        return (SqlCommandHistoryRepository)RepositoryCache.load(
                SqlCommandHistoryRepository.REPOSITORY_ID);        
    }

}










