org.envirocar.analyse.util.Utils.java Source code

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Here is the source code for org.envirocar.analyse.util.Utils.java

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/**
 * Copyright (C) 2014 52North 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.
 *
 * 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.envirocar.analyse.util;

import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;

import org.envirocar.analyse.properties.Properties;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.vividsolutions.jts.geom.GeometryFactory;

public class Utils {

    private static final Logger LOGGER = LoggerFactory.getLogger(Utils.class);

    public static GeometryFactory geometryFactory = new GeometryFactory();

    public static double[] convertWKTPointToXY(String wktPointAsString) {

        double[] result = new double[2];

        wktPointAsString = wktPointAsString.replace("POINT(", "");
        wktPointAsString = wktPointAsString.replace(")", "");

        String[] xyAsStringArray = wktPointAsString.split(" ");

        result[0] = Double.parseDouble(xyAsStringArray[0].trim());
        result[1] = Double.parseDouble(xyAsStringArray[1].trim());

        return result;
    }

    public static double[] getCoordinatesXYFromJSON(LinkedHashMap<?, ?> geometryMap) {

        double[] result = new double[2];

        Object coordinatesObject = geometryMap.get("coordinates");

        if (coordinatesObject instanceof List<?>) {
            List<?> coordinatesList = (List<?>) coordinatesObject;

            if (coordinatesList.size() > 1) {
                result[0] = (Double) coordinatesList.get(0);
                result[1] = (Double) coordinatesList.get(1);
            } else {
                LOGGER.error("Coordinates array is too small (must be 2), size is: " + coordinatesList.size());
            }
        }

        return result;

    }

    public static Map<String, Object> getValuesFromFromJSON(Map<?, ?> phenomenonMap) {

        Map<String, Object> result = new HashMap<>();

        for (String propertyName : Properties.getPropertiesOfInterestDatatypeMapping().keySet()) {
            Object propertyObject = phenomenonMap.get(propertyName);

            if (propertyObject == null) {
                result.put(propertyName, 0.0);//TODO handle non number properties
            } else if (propertyObject instanceof LinkedHashMap<?, ?>) {
                result.put(propertyName, ((LinkedHashMap<?, ?>) propertyObject).get("value"));
            }

        }

        return result;

    }

    public static Map<?, ?> parseJsonStream(InputStream stream) throws IOException {
        ObjectMapper om = new ObjectMapper();
        final Map<?, ?> json = om.readValue(stream, Map.class);
        return json;
    }

}