DefaultGranuleHandler.java example

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/*
 * GeoTools - The Open Source Java GIS Toolkit
 * http://geotools.org
 *
 * (C) 2016, 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.geotools.gce.imagemosaic.granulehandler;

import org.geotools.coverage.grid.io.GridCoverage2DReader;
import org.geotools.coverage.grid.io.StructuredGridCoverage2DReader;
import org.geotools.gce.imagemosaic.MosaicConfigurationBean;
import org.geotools.geometry.jts.ReferencedEnvelope;
import org.opengis.feature.simple.SimpleFeature;
import org.opengis.feature.simple.SimpleFeatureType;
import org.opengis.geometry.Envelope;

import com.vividsolutions.jts.geom.GeometryFactory;
import com.vividsolutions.jts.geom.PrecisionModel;

/**
 * Default granule handling
 */
public class DefaultGranuleHandler implements GranuleHandler {

    private final static PrecisionModel PRECISION_MODEL = new PrecisionModel(
            PrecisionModel.FLOATING);

    private final static GeometryFactory GEOM_FACTORY = new GeometryFactory(PRECISION_MODEL);

    @Override
    public void handleGranule(Object source, GridCoverage2DReader inputReader,
            SimpleFeature targetFeature, SimpleFeatureType targetFeatureType, SimpleFeature feature,
            SimpleFeatureType inputFeatureType, MosaicConfigurationBean mosaicConfiguration) {

        if (inputReader instanceof StructuredGridCoverage2DReader) {
            handleStructuredGranule(source, inputReader, targetFeature, targetFeatureType, feature,
                    inputFeatureType, mosaicConfiguration);
        } else {
            Envelope coverageEnvelope = inputReader.getOriginalEnvelope();
            targetFeature.setAttribute(targetFeatureType.getGeometryDescriptor().getLocalName(),
                    GEOM_FACTORY.toGeometry(new ReferencedEnvelope(coverageEnvelope)));
        }

    }
}