com.vividsolutions.jtstest.geomop.PreparedGeometryOperation Maven / Gradle / Ivy
/*
* The JTS Topology Suite is a collection of Java classes that
* implement the fundamental operations required to validate a given
* geo-spatial data set to a known topological specification.
*
* Copyright (C) 2001 Vivid Solutions
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* For more information, contact:
*
* Vivid Solutions
* Suite #1A
* 2328 Government Street
* Victoria BC V8T 5G5
* Canada
*
* (250)385-6040
* www.vividsolutions.com
*/
package com.vividsolutions.jtstest.geomop;
import com.vividsolutions.jts.geom.*;
import com.vividsolutions.jts.geom.prep.*;
import com.vividsolutions.jtstest.testrunner.*;
/**
* A {@link GeometryOperation} which uses {@link PreparedGeometry}s
* for applicable operations.
* This allows testing correctness of the PreparedGeometry implementation.
*
* This class can be used via the -geomop command-line option
* or by the <geometryOperation> XML test file setting.
*
* @author mbdavis
*
*/
public class PreparedGeometryOperation
implements GeometryOperation
{
private GeometryMethodOperation chainOp = new GeometryMethodOperation();
public PreparedGeometryOperation()
{
}
public Class getReturnType(String opName)
{
if (isPreparedOp(opName))
return boolean.class;
return chainOp.getReturnType(opName);
}
/**
* Creates a new operation which chains to the given {@link GeometryMethodOperation}
* for non-intercepted methods.
*
* @param chainOp the operation to chain to
*/
public PreparedGeometryOperation(GeometryMethodOperation chainOp)
{
this.chainOp = chainOp;
}
private static boolean isPreparedOp(String opName)
{
if (opName.equals("intersects")) return true;
if (opName.equals("contains")) return true;
if (opName.equals("containsProperly")) return true;
if (opName.equals("covers")) return true;
return false;
}
/**
* Invokes the named operation
*
* @param opName
* @param geometry
* @param args
* @return the result
* @throws Exception
* @see GeometryOperation#invoke
*/
public Result invoke(String opName, Geometry geometry, Object[] args)
throws Exception
{
if (! isPreparedOp(opName)) {
return chainOp.invoke(opName, geometry, args);
}
return invokePreparedOp(opName, geometry, args);
}
private Result invokePreparedOp(String opName, Geometry geometry, Object[] args)
{
Geometry g2 = (Geometry) args[0];
if (opName.equals("intersects")) {
return new BooleanResult(PreparedGeometryOp.intersects(geometry, g2));
}
if (opName.equals("contains")) {
return new BooleanResult(PreparedGeometryOp.contains(geometry, g2));
}
if (opName.equals("containsProperly")) {
return new BooleanResult(PreparedGeometryOp.containsProperly(geometry, g2));
}
if (opName.equals("covers")) {
return new BooleanResult(PreparedGeometryOp.covers(geometry, g2));
}
return null;
}
static class PreparedGeometryOp
{
public static boolean intersects(Geometry g1, Geometry g2)
{
PreparedGeometry prepGeom = PreparedGeometryFactory.prepare(g1);
return prepGeom.intersects(g2);
}
public static boolean contains(Geometry g1, Geometry g2)
{
PreparedGeometry prepGeom = PreparedGeometryFactory.prepare(g1);
return prepGeom.contains(g2);
}
public static boolean containsProperly(Geometry g1, Geometry g2)
{
PreparedGeometry prepGeom = PreparedGeometryFactory.prepare(g1);
return prepGeom.containsProperly(g2);
}
public static boolean covers(Geometry g1, Geometry g2)
{
PreparedGeometry prepGeom = PreparedGeometryFactory.prepare(g1);
return prepGeom.covers(g2);
}
}
}