it.jugtorino.one.msvc.way.rabbit.geoip.reference.service.IPLocation.java Source code

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Here is the source code for it.jugtorino.one.msvc.way.rabbit.geoip.reference.service.IPLocation.java

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/*
 * Copyright (C) 2017 Federico Fissore
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package it.jugtorino.one.msvc.way.rabbit.geoip.reference.service;

import java.util.Map;
import java.util.Optional;
import java.util.function.Predicate;
import java.util.stream.Stream;

import it.jugtorino.one.msvc.way.rabbit.geoip.reference.service.dao.GeoIPDao;
import org.apache.commons.net.util.SubnetUtils;

public class IPLocation {

    private final GeoIPDao geoIPDao;

    public IPLocation(GeoIPDao geoIPDao) {
        this.geoIPDao = geoIPDao;
    }

    public Optional<Map<String, Object>> locate(String ipAddress) {
        return geoIPDao.findNetworks(ipAddress).filter(filterOutNonInRange(ipAddress))
                .flatMap(this::networkToLocation).map(this::addGoogleMapsLink).findFirst();
    }

    private Map<String, Object> addGoogleMapsLink(Map<String, Object> location) {
        String googleMapsLink = "http://www.google.com/maps/place/" + location.getOrDefault("latitude", 0) + ","
                + location.getOrDefault("longitude", 0);
        location.put("google_map", googleMapsLink);
        return location;
    }

    private Stream<Map<String, Object>> networkToLocation(Map<String, Object> network) {
        return geoIPDao.findLocation((Integer) network.get("geoname_id")).map(location -> {
            location.put("postalcode", network.get("postalcode"));
            location.put("latitude", network.get("latitude"));
            location.put("longitude", network.get("longitude"));
            location.put("accurancy", network.get("accurancy"));
            return location;
        }).map(Stream::of).orElse(Stream.empty());
    }

    private Predicate<Map<String, Object>> filterOutNonInRange(String ipAddress) {
        return network -> new SubnetUtils(network.get("network").toString()).getInfo().isInRange(ipAddress);
    }

}