Examples with AisPositionA au.gov.amsa.ais.message.AisPositionA used on opensource projects

Example 1 with AisPositionA

use of au.gov.amsa.ais.message.AisPositionA in project risky by amsa-code.

the class ShipTypeBreakdownMain method main.

public static void main(String[] args) throws FileNotFoundException, IOException {
    // load a shapefile
    final GeometryFactory gf = new GeometryFactory();
    File file = new File("/home/dxm/temp/srr.shp");
    Map<String, Serializable> map = new HashMap<>();
    map.put("url", file.toURI().toURL());
    DataStore datastore = DataStoreFinder.getDataStore(map);
    String typeName = datastore.getTypeNames()[0];
    System.out.println(typeName);
    SimpleFeatureSource source = datastore.getFeatureSource(typeName);
    final SimpleFeatureCollection features = source.getFeatures();
    final List<PreparedGeometry> geometries = new ArrayList<>();
    SimpleFeatureIterator it = features.features();
    while (it.hasNext()) {
        SimpleFeature feature = it.next();
        Geometry g = (Geometry) feature.getDefaultGeometry();
        geometries.add(PreparedGeometryFactory.prepare(g));
    }
    // System.exit(0);
    String filename = "/media/analysis/nmea/2014/NMEA_ITU_20140815.gz";
    final Set<Long> mmsi = new HashSet<Long>();
    final Set<Long> mmsiA = new HashSet<Long>();
    final Set<Long> mmsiB = new HashSet<Long>();
    Streams.extract(Streams.nmeaFromGzip(filename)).flatMap(aisPositionsOnly).lift(Logging.<TimestampedAndLine<AisPosition>>logger().showCount().every(100000).log()).doOnNext(m -> {
        AisPosition p = m.getMessage().get().message();
        if (p.getLatitude() != null && p.getLongitude() != null && contains(gf, geometries, p.getLatitude(), p.getLongitude())) {
            long mmsiNo = m.getMessage().get().message().getMmsi();
            mmsi.add(mmsiNo);
            if (m.getMessage().get().message() instanceof AisPositionA)
                mmsiA.add(mmsiNo);
            else
                mmsiB.add(mmsiNo);
        }
    }).subscribe();
    final Map<ShipTypeClass, Set<Integer>> countsByShipType = new ConcurrentHashMap<>();
    Streams.extract(Streams.nmeaFromGzip(filename)).flatMap(aisShipStaticOnly).doOnNext(m -> {
        AisShipStatic s = m.getMessage().get().message();
        if (mmsi.contains(Long.valueOf(s.getMmsi()))) {
            boolean isClassA = s instanceof AisShipStaticA;
            ShipTypeClass shipTypeClass = new ShipTypeClass(isClassA, s.getShipType());
            if (countsByShipType.get(shipTypeClass) == null)
                countsByShipType.put(shipTypeClass, new HashSet<Integer>());
            else
                countsByShipType.get(shipTypeClass).add(s.getMmsi());
        }
    }).subscribe();
    System.out.println(countsByShipType);
    Set<String> set = new TreeSet<String>();
    int sizeA = 0;
    int sizeB = 0;
    for (Entry<ShipTypeClass, Set<Integer>> s : countsByShipType.entrySet()) {
        set.add(ShipTypeDecoder.getShipType(s.getKey().shipType) + "\t" + (s.getKey().isClassA ? "A" : "B") + "\t" + s.getValue().size());
        if (s.getKey().isClassA)
            sizeA += s.getValue().size();
        else
            sizeB += s.getValue().size();
    }
    set.stream().forEach(System.out::println);
    System.out.println("Unknown\tA\t" + (mmsiA.size() - sizeA));
    System.out.println("Unknown\tB\t" + (mmsiB.size() - sizeB));
    log.info("finished");
}

Example 2 with AisPositionA

use of au.gov.amsa.ais.message.AisPositionA in project risky by amsa-code.

the class AisMessageParser method parse.

/**
 * Returns an {@link AisMessage} from the string representation of the
 * message as per 1371-4 IMO specification (as per the appropriate column in
 * the NMEA message).
 *
 * @param message
 * @param source
 * @return
 */
public AisMessage parse(String message, String source, int padBits) {
    AisExtractor extractor = factory.create(message, 0, padBits);
    int id = extractor.getMessageId();
    if (Util.isClassAPositionReport(id)) {
        return new AisPositionA(message, source, padBits);
    } else if (id == 4)
        return new AisBaseStation(message, source, padBits);
    else if (id == 5)
        return new AisShipStaticA(message, source, padBits);
    else if (id == 18)
        return new AisPositionB(message, source, padBits);
    else if (id == 19)
        return new AisPositionBExtended(message, source, padBits);
    else if (id == 21)
        return new AisAidToNavigation(message, source, padBits);
    else if (id == AisMessageType.STATIC_DATA_REPORT.getId()) {
        int partNumber = AbstractAisBStaticDataReport.extractPartNumber(factory, message, padBits);
        return parseStaticDataReport(partNumber, id, message, source, padBits);
    } else if (id == 27)
        return new AisPositionGPS(message, source, padBits);
    else
        return new AisMessageOther(id, source, padBits);
}