/*
 *  RapidMiner
 *
 *  Copyright (C) 2001-2008 by Rapid-I and the contributors
 *
 *  Complete list of developers available at our web site:
 *
 *       http://rapid-i.com
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero 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 Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see http://www.gnu.org/licenses/.
 */
package com.rapidminer.gui.viewer;

import java.util.Date;

import javax.swing.table.AbstractTableModel;

import com.rapidminer.datatable.DataTable;
import com.rapidminer.datatable.DataTableRow;


/** The model for the {@link com.rapidminer.gui.viewer.DataTableViewerTable}. 
 * 
 *  @author Ingo Mierswa
 *  @version $Id: DataTableViewerTableModel.java,v 1.4 2008/05/25 12:08:44 ingomierswa Exp $
 */
public class DataTableViewerTableModel extends AbstractTableModel {
    
    private static final long serialVersionUID = 8116530590493627673L;
    
    private transient DataTable dataTable;
    
    public DataTableViewerTableModel(DataTable dataTable) {
        this.dataTable = dataTable;
    }
    
    public Class<?> getColumnClass(int column) {
    	Class<?> type = super.getColumnClass(column);   
    	if ((dataTable.isDate(column)) || (dataTable.isTime(column)) || (dataTable.isDateTime(column))) {
    		type = Date.class;
    	} else if (dataTable.isNumerical(column)) {
    		type = Double.class;
    	} else {
    		type = String.class;
    	}
        return type;
    }
    
    public int getRowCount() {
        return dataTable.getNumberOfRows();
    }

    public int getColumnCount() {
        return dataTable.getNumberOfColumns();
    }

    public Object getValueAt(int row, int col) {
        DataTableRow tableRow = dataTable.getRow(row);
        if (dataTable.isDate(col) || dataTable.isTime(col) || dataTable.isDateTime(col)) {
    		double value = tableRow.getValue(col);
    		long milliseconds = (long)value;
    		return new Date(milliseconds);
        } else if (dataTable.isNominal(col)) {
            return dataTable.getValueAsString(tableRow, col);
        } else {
            return tableRow.getValue(col);
        }
    }
    
    public String getColumnName(int col) {
        return dataTable.getColumnName(col);
    }
}