/*
* Copyright (c) 2016 Vivid Solutions.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* and Eclipse Distribution License v. 1.0 which accompanies this distribution.
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
*
* http://www.eclipse.org/org/documents/edl-v10.php.
*/
package org.locationtech.jtstest.geomop;
import org.locationtech.jts.geom.*;
import org.locationtech.jts.geom.prep.*;
import org.locationtech.jtstest.testrunner.*;
/**
* A {@link GeometryOperation} which uses {@link PreparedGeometry}s
* for applicable operations.
* This allows testing correctness of the <tt>PreparedGeometry</tt> implementation.
* <p>
* This class can be used via the <tt>-geomop</tt> command-line option
* or by the <tt><geometryOperation></tt> 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);
}
}
}