/*
 * This file is part of rasdaman community.
 *
 * Rasdaman community 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.
 *
 * Rasdaman community 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 rasdaman community.  If not, see <http://www.gnu.org/licenses/>.
 *
 * Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 Peter Baumann /
 rasdaman GmbH.
 *
 * For more information please see <http://www.rasdaman.org>
 * or contact Peter Baumann via <baumann@rasdaman.com>.
 */
package petascope.wcps.server.core;

import petascope.wcps.server.exceptions.WCPSException;
import org.w3c.dom.*;

public class VariableReference implements IRasNode {

    private String name;
    private String translatedName;

    public VariableReference(Node node, XmlQuery xq) throws WCPSException {
        System.err.println("Parsing variable reference: " + node.getNodeName());

        while ((node != null) && node.getNodeName().equals("#text")) {
            node = node.getNextSibling();
        }

        if (node != null && node.getNodeName().equals("variableRef")) {
            name = node.getTextContent();
            translatedName = xq.getReferenceVariableName(name);
            System.err.println("Variable " + name + " has been renamed into "
                    + translatedName);
        } else {
            throw new WCPSException("Could not find any variable reference !");
        }
    }

    public String getName() {
        return name;
    }

    public String toRasQL() {
        return translatedName;
    }
}