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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 java.math.BigInteger;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.w3c.dom.Node;
public class SliceCoverageExpr implements IRasNode, ICoverageInfo {
private List<DimensionPointElement> axisList;
private CoverageExpr coverageExprType;
private CoverageInfo coverageInfo = null;
private String[] dim;
private DimensionPointElement elem;
private int dims;
public SliceCoverageExpr(Node node, XmlQuery xq) throws WCPSException, InvalidCrsException {
Node child = node.getFirstChild();
String nodeName;
axisList = new ArrayList<DimensionPointElement>();
while (child != null) {
nodeName = child.getNodeName();
if (nodeName.equals("#text")) {
child = child.getNextSibling();
continue;
}
try {
System.err.println("Trying out an CoverageExprType group...");
coverageExprType = new CoverageExpr(child, xq);
coverageInfo = coverageExprType.getCoverageInfo();
child = child.getNextSibling();
continue;
} catch (WCPSException e) {
System.err.println("This was no CoverageExprType: " + nodeName);
}
try {
// Start a new axis and save it
elem = new DimensionPointElement(child, xq);
axisList.add(elem);
child = elem.getNextNode();
continue;
} catch (WCPSException e) {
System.err.println("This was no Dimension Point ELement: " + child.getNodeName());
}
// else unknown element
throw new WCPSException("Unknown node for TrimCoverage expression:" + child.getNodeName());
}
dims = coverageInfo.getNumDimensions();
dim = new String[dims];
for (int j = 0; j < dims; ++j) {
dim[j] = "*:*";
}
Iterator<DimensionPointElement> i = axisList.iterator();
DimensionPointElement axis;
int axisId;
int slicingPosInt;
String slicingPosStr;
while (i.hasNext()) {
axis = i.next();
/* TODO: BUG: This searches the axis types list using name, not type */
axisId = coverageInfo.getDomainIndexByName(axis.getAxisName());
slicingPosStr = axis.getSlicingPosition();
dim[axisId] = slicingPosStr;
// Slicing position can be a constant number or a variable reference
try {
slicingPosInt = Integer.parseInt(slicingPosStr);
} catch (NumberFormatException e) {
slicingPosInt = 1;
}
coverageInfo.setCellDimension(
axisId,
new CellDomainElement(
BigInteger.valueOf(slicingPosInt), BigInteger.valueOf(slicingPosInt)));
}
}
public CoverageInfo getCoverageInfo() {
return coverageInfo;
}
public String toRasQL() {
String result = "(" + coverageExprType.toRasQL() + ") [";
for (int j = 0; j < dims; ++j) {
if (j > 0) {
result += ",";
}
result += dim[j];
}
result += "]";
return result;
}
}
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