/**
* Copyright (C) 2007 - 2016 52°North Initiative for Geospatial Open Source
* Software GmbH
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*
* If the program is linked with libraries which are licensed under one of
* the following licenses, the combination of the program with the linked
* library is not considered a "derivative work" of the program:
*
* • Apache License, version 2.0
* • Apache Software License, version 1.0
* • GNU Lesser General Public License, version 3
* • Mozilla Public License, versions 1.0, 1.1 and 2.0
* • Common Development and Distribution License (CDDL), version 1.0
*
* Therefore the distribution of the program linked with libraries licensed
* under the aforementioned licenses, is permitted by the copyright holders
* if the distribution is compliant with both the GNU General Public
* License version 2 and the aforementioned licenses.
*
* As an exception to the terms of the GPL, you may copy, modify,
* propagate, and distribute a work formed by combining 52°North WPS
* GeoTools Modules with the Eclipse Libraries, or a work derivative of
* such a combination, even if such copying, modification, propagation, or
* distribution would otherwise violate the terms of the GPL. Nothing in
* this exception exempts you from complying with the GPL in all respects
* for all of the code used other than the Eclipse Libraries. You may
* include this exception and its grant of permissions when you distribute
* 52°North WPS GeoTools Modules. Inclusion of this notice with such a
* distribution constitutes a grant of such permissions. If you do not wish
* to grant these permissions, remove this paragraph from your
* distribution. "52°North WPS GeoTools Modules" means the 52°North WPS
* modules using GeoTools functionality - software licensed under version 2
* or any later version of the GPL, or a work based on such software and
* licensed under the GPL. "Eclipse Libraries" means Eclipse Modeling
* Framework Project and XML Schema Definition software distributed by the
* Eclipse Foundation and licensed under the Eclipse Public License Version
* 1.0 ("EPL"), or a work based on such software and licensed under the EPL.
*
* This program 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.
*/
package org.n52.wps.server.algorithm.intersection;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.geotools.feature.DefaultFeatureCollections;
import org.geotools.feature.FeatureCollection;
import org.geotools.feature.simple.SimpleFeatureBuilder;
import org.geotools.feature.simple.SimpleFeatureTypeBuilder;
import org.n52.wps.io.GTHelper;
import org.n52.wps.io.data.IData;
import org.n52.wps.io.data.binding.complex.GTVectorDataBinding;
import org.n52.wps.server.AbstractAlgorithm;
import org.n52.wps.server.AbstractSelfDescribingAlgorithm;
import org.opengis.feature.Feature;
import org.opengis.feature.simple.SimpleFeature;
import org.opengis.feature.simple.SimpleFeatureType;
import com.vividsolutions.jts.geom.Geometry;
import com.vividsolutions.jts.geom.LineString;
import com.vividsolutions.jts.geom.Point;
import com.vividsolutions.jts.geom.Polygon;
public class IntersectionAlgorithm extends AbstractSelfDescribingAlgorithm {
private static Logger LOGGER = LoggerFactory.getLogger(IntersectionAlgorithm.class);
public IntersectionAlgorithm() {
super();
}
private List<String> errors = new ArrayList<String>();
public List<String> getErrors() {
return errors;
}
public Map<String, IData> run(Map<String, List<IData>> inputData) {
/*----------------------Polygons Input------------------------------------------*/
if(inputData==null || !inputData.containsKey("Polygon1")){
throw new RuntimeException("Error while allocating input parameters");
}
List<IData> dataList = inputData.get("Polygon1");
if(dataList == null || dataList.size() != 1){
throw new RuntimeException("Error while allocating input parameters");
}
IData firstInputData = dataList.get(0);
FeatureCollection polygons = ((GTVectorDataBinding) firstInputData).getPayload();
/*----------------------LineStrings Input------------------------------------------*/
if(inputData==null || !inputData.containsKey("Polygon2")){
throw new RuntimeException("Error while allocating input parameters");
}
List<IData> dataListLS = inputData.get("Polygon2");
if(dataListLS == null || dataListLS.size() != 1){
throw new RuntimeException("Error while allocating input parameters");
}
IData firstInputDataLS = dataListLS.get(0);
FeatureCollection lineStrings = ((GTVectorDataBinding) firstInputDataLS).getPayload();
System.out.println("****************************************************************");
System.out.println("intersection started");
System.out.println("polygons size = " + polygons.size());
System.out.println("lineStrings size = " + lineStrings.size());
FeatureCollection featureCollection = DefaultFeatureCollections.newCollection();
Iterator polygonIterator = polygons.iterator();
int j = 1;
while(polygonIterator.hasNext()){
SimpleFeature polygon = (SimpleFeature) polygonIterator.next();
Iterator lineStringIterator = lineStrings.iterator();
int i = 1;
System.out.println("Polygon = " + j +"/"+ polygons.size());
while(lineStringIterator.hasNext()){
//System.out.println("Polygon = " + j + "LineString =" + i +"/"+lineStrings.size());
SimpleFeature lineString = (SimpleFeature) lineStringIterator.next();
Geometry lineStringGeometry = null;
if(lineString.getDefaultGeometry()==null && lineString.getAttributeCount()>0 &&lineString.getAttribute(0) instanceof Geometry){
lineStringGeometry = (Geometry)lineString.getAttribute(0);
}else{
lineStringGeometry = (Geometry) lineString.getDefaultGeometry();
}
try{
Geometry polygonGeometry = (Geometry) polygon.getDefaultGeometry();
Geometry intersection = polygonGeometry.intersection(lineStringGeometry);
Feature resultFeature = createFeature(""+j+"_"+i, intersection, polygon);
if(resultFeature!=null){
featureCollection.add(resultFeature);
System.out.println("result feature added. resultCollection = " + featureCollection.size());
}
}catch(Exception e){
e.printStackTrace();
}
i++;
}
j++;
}
HashMap<String,IData> resulthash = new HashMap<String,IData>();
resulthash.put("intersection_result", new GTVectorDataBinding(featureCollection));
return resulthash;
}
private Feature createFeature(String id, Geometry geometry, SimpleFeature bluePrint) {
Feature feature = GTHelper.createFeature(id, geometry, bluePrint.getFeatureType(), bluePrint.getProperties());
return feature;
}
public Class getInputDataType(String id) {
return GTVectorDataBinding.class;
}
public Class getOutputDataType(String id) {
return GTVectorDataBinding.class;
}
@Override
public List<String> getInputIdentifiers() {
List<String> identifierList = new ArrayList<String>();
identifierList.add("Polygon1");
identifierList.add("Polygon2");
return identifierList;
}
@Override
public List<String> getOutputIdentifiers() {
List<String> identifierList = new ArrayList<String>();
identifierList.add("intersection_result");
return identifierList;
}
}