com.stratio.cassandra.lucene.util.GeospatialUtilsJTS Maven / Gradle / Ivy

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/**
 * Copyright (C) 2014 Stratio (http://stratio.com)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.stratio.cassandra.lucene.util;

import com.spatial4j.core.context.jts.JtsSpatialContext;
import com.spatial4j.core.shape.jts.JtsGeometry;
import com.stratio.cassandra.lucene.IndexException;
import com.vividsolutions.jts.geom.Geometry;
import com.vividsolutions.jts.geom.GeometryFactory;
import com.vividsolutions.jts.io.ParseException;
import com.vividsolutions.jts.io.WKTReader;
import org.apache.commons.lang3.StringUtils;

/**
 * Utilities for Java Topology Suite (JTS) related stuff.
 *
 * This class depends on Java Topology Suite (JTS). This library can't
 * be distributed together with this project due to license compatibility problems, but you can add it by putting jts-core-1.14.0.jar
 * into Cassandra lib directory.
 *
 * @author Andres de la Pena {@literal }
 */
public class GeospatialUtilsJTS extends GeospatialUtils {

    /**
     * Returns the {@link JtsGeometry} represented by the specified WKT text.
     *
     * @param context the JTS spatial context
     * @param string the WKT text
     * @return the parsed geometry
     */
    public static JtsGeometry geometryFromWKT(JtsSpatialContext context, String string) {
        if (StringUtils.isBlank(string)) {
            throw new IndexException("Shape shouldn't be blank");
        }
        try {
            GeometryFactory geometryFactory = context.getGeometryFactory();
            WKTReader reader = new WKTReader(geometryFactory);
            Geometry geometry = reader.read(string);
            return context.makeShape(geometry);
        } catch (ParseException | IllegalArgumentException e) {
            throw new IndexException(e, "Shape '%s' is not parseable", string);
        }
    }
}