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/*
* 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.InvalidCrsException;
import petascope.wcps.server.exceptions.WCPSException;
import org.w3c.dom.*;
public class StringScalarExpr implements IRasNode {
private String op, string;
private CoverageExpr cov;
public StringScalarExpr(Node node, XmlQuery xq) throws WCPSException, InvalidCrsException {
while ((node != null) && (node.getNodeName().equals("#text"))) {
node = node.getNextSibling();
}
System.err.println("Parsing String Scalar expr : " + node.getNodeName());
if (node.getNodeName().equals("stringIdentifier")) {
Node child = node.getFirstChild();
cov = new CoverageExpr(child, xq);
op = "id";
} else if (node.getNodeName().equals("stringConstant")) {
op = "constant";
string = node.getNodeValue();
} else {
throw new WCPSException("Unknown String expr node: " + node.getNodeName());
}
}
public String toRasQL() {
String result = "";
if (op.equals("constant")) {
result = string;
}
if (op.equals("id")) {
result = cov.toRasQL();
}
return result;
}
}
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