/**
* 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.raster;
import java.awt.image.RenderedImage;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.media.jai.JAI;
import javax.media.jai.RenderedOp;
import javax.media.jai.TiledImage;
import org.geotools.coverage.grid.GridCoverage2D;
import org.geotools.coverage.grid.GridCoverageFactory;
import org.geotools.feature.FeatureCollection;
import org.n52.wps.io.data.IData;
import org.n52.wps.io.data.binding.complex.GTRasterDataBinding;
import org.n52.wps.io.data.binding.complex.GTVectorDataBinding;
import org.n52.wps.server.AbstractSelfDescribingAlgorithm;
import org.opengis.coverage.grid.GridCoverage;
public class AddRasterValues extends AbstractSelfDescribingAlgorithm{
public Class getInputDataType(String id) {
return GTRasterDataBinding.class;
}
public Class getOutputDataType(String id) {
return GTRasterDataBinding.class;
}
@Override
public List<String> getInputIdentifiers() {
List<String> identifierList = new ArrayList<String>();
identifierList.add("dataset1");
identifierList.add("dataset2");
return identifierList;
}
@Override
public List<String> getOutputIdentifiers() {
List<String> identifierList = new ArrayList<String>();
identifierList.add("result");
return identifierList;
}
@Override
public Map<String, IData> run(Map<String, List<IData>> inputData) {
if(inputData==null || !inputData.containsKey("dataset1")){
throw new RuntimeException("Error while allocating input parameters");
}
List<IData> dataList1 = inputData.get("dataset1");
if(dataList1 == null || dataList1.size() != 1){
throw new RuntimeException("Error while allocating input parameters");
}
IData dataset1 = dataList1.get(0);
GridCoverage2D gridCoverage1 = (GridCoverage2D) dataset1.getPayload();
RenderedImage image1 = gridCoverage1.getRenderedImage();
if(inputData==null || !inputData.containsKey("dataset2")){
throw new RuntimeException("Error while allocating input parameters");
}
List<IData> dataList2 = inputData.get("dataset2");
if(dataList2 == null || dataList2.size() != 1){
throw new RuntimeException("Error while allocating input parameters");
}
IData dataset2 = dataList2.get(0);
GridCoverage2D gridCoverage2 = (GridCoverage2D) dataset2.getPayload();
RenderedImage image2 = gridCoverage2.getRenderedImage();
RenderedOp resultImage = JAI.create("add",image1, image2);
GridCoverageFactory gcf = new GridCoverageFactory();
GridCoverage2D output = gcf.create("result", resultImage, gridCoverage1.getEnvelope());
HashMap<String,IData> resulthash = new HashMap<String,IData>();
resulthash.put("result", new GTRasterDataBinding(output));
return resulthash;
}
}