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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 - 2010 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.exceptions.WCPSException;
import org.w3c.dom.*;
public class CoverageExprPairType implements IRasNode, ICoverageInfo {
private IRasNode first, second;
private CoverageInfo info;
private boolean ok = false;
public CoverageExprPairType(Node node, XmlQuery xq)
throws WCPSException {
String nodeName = node.getNodeName();
System.err.println("Trying to parse a coverage expression pair ... Starting at node "
+ nodeName);
// Combination 1: CoverageExprType + ScalarExprType
if (ok == false) {
try {
first = new CoverageExpr(node, xq);
second = new ScalarExpr(node.getNextSibling(), xq);
info = new CoverageInfo(((ICoverageInfo) first).getCoverageInfo());
ok = true;
} catch (WCPSException e) {
System.err.println("Failed to parse CoverageExprType + ScalarExprType!");
}
}
// Combination 2: ScalarExprType + CoverageExprType
if (ok == false) {
try {
first = new ScalarExpr(node, xq);
second = new CoverageExpr(node.getNextSibling(), xq);
info = new CoverageInfo(((ICoverageInfo) second).getCoverageInfo());
ok = true;
} catch (WCPSException e) {
System.err.println("Failed to parse ScalarExprType + CoverageExprType!");
}
}
// Combination 3: CoverageExprType + CoverageExprType
if (ok == false) {
try {
first = new CoverageExpr(node, xq);
second = new CoverageExpr(node.getNextSibling(), xq);
info = new CoverageInfo(((ICoverageInfo) first).getCoverageInfo());
ok = true;
} catch (WCPSException e) {
System.err.println("Failed to parse a CoverageExprType + CoverageExprType!");
}
}
if (ok == false) {
throw new WCPSException("Could not parse a coverage expression pair !");
}
}
public CoverageInfo getCoverageInfo() {
return info;
}
public String toRasQL() {
if (ok == true) {
return first.toRasQL() + second.toRasQL();
} else {
return " error ";
}
}
public IRasNode getFirst() {
return first;
}
public IRasNode getSecond() {
return second;
}
}
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