/*
* Geotoolkit - An Open Source Java GIS Toolkit
* http://www.geotoolkit.org
*
* (C) 2002-2008, Open Source Geospatial Foundation (OSGeo)
*
* 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;
* version 2.1 of the License.
*
* 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.
*/
package org.geotoolkit.geometry.isoonjts.spatialschema.geometry;
import org.opengis.geometry.DirectPosition;
import org.opengis.geometry.Geometry;
import org.opengis.geometry.TransfiniteSet;
import java.util.Map;
import java.util.HashMap;
/**
* @author Jody Garnett
* @author Joel Skelton
* @module
*/
public class GeometryTestOperation {
private String operation;
private String arg1;
private String arg2;
private String arg3;
private Object expectedResult;
private Map /*<String, OperationHandler>*/operationMap;
/**
* Constructor
* @param operation the operation to perform
* @param arg1 first argument
* @param arg2 second argument
* @param arg3 third argument
* @param expectedResult the passing result of the operation
*/
public GeometryTestOperation(final String operation, final String arg1, final String arg2, final String arg3, final Object expectedResult) {
this.operation = operation;
this.arg1 = arg1;
this.arg2 = arg2;
this.arg3 = arg3;
this.expectedResult = expectedResult;
setupOperationMap();
}
private void setupOperationMap() {
operationMap = new HashMap();
OperationHandler noOpHandler = new NoOp();
operationMap.put("contains", new ContainsOp());
operationMap.put("convexhull", new ConvexHullOp());
operationMap.put("difference", new DifferenceOp());
operationMap.put("getboundary", new BoundaryOp());
operationMap.put("getCentroid", new CentroidOp());
operationMap.put("getInteriorPoint", new RepresentativePointOp());
operationMap.put("intersection", new IntersectionOp());
operationMap.put("intersects", new IntersectsOp());
operationMap.put("isSimple", new IsSimpleOp());
operationMap.put("symdifference", new SymmetricDifferenceOp());
operationMap.put("union", new UnionOp());
}
private Geometry setGeomArg(final String s, final Geometry a, final Geometry b) {
if (s.equalsIgnoreCase("a")) {
return a;
} else if (s.equalsIgnoreCase("b")) {
return b;
} else {
return null;
}
}
/**
* Performs the contained operation
* @param a argument object a
* @param b argument object b
* @return
*/
public boolean run(final Geometry a, final Geometry b) {
boolean result = false;
OperationHandler operationHandler = (OperationHandler) operationMap.get(operation);
result = operationHandler.doOperation(a, b);
return result;
}
/**
* The interface used for operation handlers
*/
private abstract class OperationHandler {
boolean doOperation(final Geometry a, final Geometry b) {
return false;
}
protected boolean compareTransfiniteSetResult(final TransfiniteSet result) {
if (expectedResult == null && result == null) {
return true;
}
if (expectedResult instanceof TransfiniteSet) {
TransfiniteSet expect = (TransfiniteSet)expectedResult;
return result.equals(expect);
} else {
return false;
}
}
protected boolean compareDirectPositionResult(final DirectPosition result) {
if (expectedResult instanceof DirectPosition) {
DirectPosition expect = (DirectPosition)expectedResult;
return result.equals(expect);
} else {
return false;
}
}
}
/**
* Class defining a null operation
*/
private class NoOp extends OperationHandler {
public boolean doOperation(final Geometry a, final Geometry b) {
return false;
}
}
/**
* Class defining the "contains" operation
*/
private class ContainsOp extends OperationHandler {
/**
* The actual working method of the operation.
* @param a Geometry object
* @param b Geometry Object
* @return a boolean indicating whether the result matched the expectation
*/
public boolean doOperation(final Geometry a, final Geometry b) {
Boolean expected = (Boolean)expectedResult;
Geometry geom1 = setGeomArg(arg1, a, b);
Geometry geom2 = setGeomArg(arg2, a, b);
Boolean result = Boolean.valueOf( geom1.contains(geom2) );
return result == expected;
}
}
/**
* Class defining the "intersects" operation
*/
private class IntersectsOp extends OperationHandler {
/**
* The actual working method of the operation.
* @param a Geometry object
* @param b Geometry Object
* @return a boolean indicating whether the result matched the expectation
*/
public boolean doOperation(final Geometry a, final Geometry b) {
Boolean expected = (Boolean)expectedResult;
Geometry geom1 = setGeomArg(arg1, a, b);
Geometry geom2 = setGeomArg(arg2, a, b);
Boolean result = Boolean.valueOf( geom1.intersects(geom2) );
return result == expected;
}
}
/**
* Class defining the "intersects" operation
*/
private class IsSimpleOp extends OperationHandler {
/**
* The actual working method of the operation.
* @param a Geometry object
* @param b Geometry Object (not used)
* @return a boolean indicating whether object A is simple
*/
public boolean doOperation(final Geometry a, final Geometry b) {
Boolean expected = (Boolean)expectedResult;
Geometry geom1 = setGeomArg(arg1, a, b);
Boolean result = Boolean.valueOf( geom1.isSimple() );
return result == expected;
}
}
/**
* Class defining the "intersects" operation
*/
private class IntersectionOp extends OperationHandler {
/**
* performs the intersection on the two arguments
* @param a Geometry object
* @param b Geometry Object
* @return a boolean indicating whether the result matched the expectation
*/
public boolean doOperation(final Geometry a, final Geometry b) {
Geometry geom1 = setGeomArg(arg1, a, b);
Geometry geom2 = setGeomArg(arg2, a, b);
TransfiniteSet result = geom1.intersection(geom2);
return compareTransfiniteSetResult(result);
}
}
/**
* Class defining the boundary operation
*/
private class BoundaryOp extends OperationHandler {
/**
* Calculates the boundary of object A
* @param a Geometry object
* @param b Geometry Object (not used)
* @return a boolean indicating whether the result matched the expectation
*/
public boolean doOperation(final Geometry a, final Geometry b) {
Geometry geom1 = setGeomArg(arg1, a, b);
TransfiniteSet result = geom1.getBoundary();
return compareTransfiniteSetResult(result);
}
}
/**
* Class defining the centroid operation
*/
private class CentroidOp extends OperationHandler {
/**
* Calculates the centroid of object A
* @param a Geometry object
* @param b Geometry Object (not used)
* @return a boolean indicating whether the result matched the expectation
*/
public boolean doOperation(final Geometry a, final Geometry b) {
Geometry geom1 = setGeomArg(arg1, a, b);
DirectPosition result = geom1.getCentroid();
return compareDirectPositionResult(result);
}
}
/**
* Class defining the centroid operation
*/
private class RepresentativePointOp extends OperationHandler {
/**
* Calculates a representative point for object A
* @param a Geometry object
* @param b Geometry Object (not used)
* @return a boolean indicating whether the result matched the expectation
*/
public boolean doOperation(final Geometry a, final Geometry b) {
Geometry geom1 = setGeomArg(arg1, a, b);
DirectPosition result = geom1.getRepresentativePoint();
return compareDirectPositionResult(result);
}
}
/**
* Class defining the boundary operation
*/
private class ConvexHullOp extends OperationHandler {
/**
* Calculates the convex hull of object A
* @param a Geometry object
* @param b Geometry Object (not used)
* @return a boolean indicating whether the result matched the expectation
*/
public boolean doOperation(final Geometry a, final Geometry b) {
Geometry geom1 = setGeomArg(arg1, a, b);
TransfiniteSet result = geom1.getConvexHull();
return compareTransfiniteSetResult(result);
}
}
/**
* Class defining the boundary operation
*/
private class DifferenceOp extends OperationHandler {
/**
* Calculates the difference of objects A and B (A - B)
* @param a Geometry object
* @param b Geometry object
* @return a boolean indicating whether the result matched the expectation
*/
public boolean doOperation(final Geometry a, final Geometry b) {
Geometry geom1 = setGeomArg(arg1, a, b);
Geometry geom2 = setGeomArg(arg2, a, b);
TransfiniteSet result = geom1.difference(geom2);
return compareTransfiniteSetResult(result);
}
}
/**
* Class defining the boundary operation
*/
private class SymmetricDifferenceOp extends OperationHandler {
/**
* Calculates the symmetric difference of objects A and B (A - B)
* @param a Geometry object
* @param b Geometry object
* @return a boolean indicating whether the result matched the expectation
*/
public boolean doOperation(final Geometry a, final Geometry b) {
Geometry geom1 = setGeomArg(arg1, a, b);
Geometry geom2 = setGeomArg(arg2, a, b);
TransfiniteSet result = geom1.symmetricDifference(geom2);
return compareTransfiniteSetResult(result);
}
}
/**
* Class defining the boundary operation
*/
private class UnionOp extends OperationHandler {
/**
* Calculates the union of objects A and B (A + B)
* @param a Geometry object
* @param b Geometry object
* @return a boolean indicating whether the result matched the expectation
*/
public boolean doOperation(final Geometry a, final Geometry b) {
Geometry geom1 = setGeomArg(arg1, a, b);
Geometry geom2 = setGeomArg(arg2, a, b);
TransfiniteSet result = geom1.union(geom2);
return compareTransfiniteSetResult(result);
}
}
/**
* Returns a string describing the operation for logging
* @return a formatted string
*/
public String toString() {
return operation + " arg1=" + arg1 + " arg2=" + arg2 + " arg3=" + arg3;
}
}