Examples with AisClass au.gov.amsa.risky.format.AisClass used on opensource projects

Example 1 with AisClass

use of au.gov.amsa.risky.format.AisClass in project risky by amsa-code.

the class ShipStaticData method from.

public static Observable<Info> from(Reader reader) {
    return Strings.lines(reader).filter(line -> !line.startsWith("#")).map(line -> line.trim()).filter(line -> line.length() > 0).map(line -> line.split("\t")).map(items -> {
        int i = 0;
        int mmsi = Integer.parseInt(items[i++]);
        String imoTemp = items[i++];
        Optional<String> imo;
        if (imoTemp.trim().length() == 0 || Integer.parseInt(imoTemp.trim()) == -1)
            imo = Optional.empty();
        else
            imo = Optional.of(imoTemp);
        AisClass cls = items[i++].equals("A") ? AisClass.A : AisClass.B;
        int type = Integer.parseInt(items[i++]);
        Optional<Integer> shipType = type == -1 ? empty() : of(type);
        float draft = Float.parseFloat(items[i++]);
        Optional<Float> maxDraftMetres = draft == -1 ? empty() : of(draft);
        int a = Integer.parseInt(items[i++]);
        int b = Integer.parseInt(items[i++]);
        int c = Integer.parseInt(items[i++]);
        int d = Integer.parseInt(items[i++]);
        Optional<Integer> dimensionAMetres = a == -1 ? empty() : of(a);
        Optional<Integer> dimensionBMetres = b == -1 ? empty() : of(b);
        Optional<Integer> dimensionCMetres = c == -1 ? empty() : of(c);
        Optional<Integer> dimensionDMetres = d == -1 ? empty() : of(d);
        // skip length and width
        i += 2;
        Optional<String> name;
        if (i >= items.length || items[i].trim().length() == 0)
            name = Optional.empty();
        else
            name = Optional.of(items[i].trim());
        return new Info(mmsi, imo, cls, shipType, maxDraftMetres, dimensionAMetres, dimensionBMetres, dimensionCMetres, dimensionDMetres, name);
    });
}

Example 2 with AisClass

use of au.gov.amsa.risky.format.AisClass in project risky by amsa-code.

the class DriftCandidates method toDriftCandidate.

private static DriftCandidate toDriftCandidate(String line) {
    String[] items = line.split(",");
    int i = 0;
    int mmsi = Integer.parseInt(items[i++]);
    float lat = Float.parseFloat(items[i++]);
    float lon = Float.parseFloat(items[i++]);
    long time = Long.parseLong(items[i++]);
    String cls = items[i++];
    float course = Float.parseFloat(items[i++]);
    float heading = Float.parseFloat(items[i++]);
    float speedKnots = Float.parseFloat(items[i++]);
    String status = items[i++];
    long driftingSince = Long.parseLong(items[i++]);
    final Optional<NavigationalStatus> navigationalStatus;
    if (status.trim().length() == 0)
        navigationalStatus = Optional.empty();
    else
        navigationalStatus = Optional.of(NavigationalStatus.valueOf(status));
    final AisClass aisClass;
    if (cls.trim().length() == 0)
        throw new RuntimeException("cls should not be empty");
    else if (AisClass.A.name().equals(cls))
        aisClass = AisClass.A;
    else
        aisClass = AisClass.B;
    FixImpl fix = new FixImpl(mmsi, lat, lon, time, Optional.<Integer>empty(), Optional.<Short>empty(), navigationalStatus, Optional.of(speedKnots), Optional.of(course), Optional.of(heading), aisClass);
    return new DriftCandidate(fix, driftingSince);
}

Example 3 with AisClass

use of au.gov.amsa.risky.format.AisClass in project risky by amsa-code.

the class ExtractStaticDataAsCsvFromNmeaGz method extractStaticData.

public static void extractStaticData(File input, File output) throws IOException {
    output.getParentFile().mkdirs();
    try (PrintStream out = new PrintStream(output)) {
        // 
        Streams.nmeaFromGzip(input).compose(// 
        o -> Streams.extractMessages(o)).filter(x -> // 
        (x.message() instanceof AisShipStatic) || // 
        (x.message() instanceof AisBStaticDataReportPartA) || // 
        (x.message() instanceof AisBStaticDataReportPartB)).groupBy(// 
        x -> ((HasMmsi) x.message()).getMmsi()).flatMap(o -> // 
        o.scan(// 
        new Timed<State>(new State(o.getKey(), null, null, null, null, null), 0L), (timed, x) -> {
            State state = timed.object;
            String name = state.name;
            String callsign = state.callsign;
            Integer imo = state.imo;
            Integer shipType = state.shipType;
            AisClass aisClass = state.aisClass;
            if (x.message() instanceof AisShipStaticA) {
                AisShipStaticA a = (AisShipStaticA) x.message();
                callsign = a.getCallsign();
                name = a.getName();
                imo = a.getImo().orElse(null);
                shipType = a.getShipType();
                aisClass = AisClass.A;
            } else if (x.message() instanceof AisPositionBExtended) {
                AisPositionBExtended a = (AisPositionBExtended) x.message();
                name = a.getName();
                shipType = a.getShipType();
                aisClass = AisClass.B;
            } else if (x.message() instanceof AisBStaticDataReportPartA) {
                AisBStaticDataReportPartA a = (AisBStaticDataReportPartA) x.message();
                if (a.getName().isPresent()) {
                    name = a.getName().get();
                }
                aisClass = AisClass.B;
            } else if (x.message() instanceof AisBStaticDataReportPartB) {
                aisClass = AisClass.B;
            }
            return new Timed<State>(new State(o.getKey(), aisClass, name, callsign, imo, shipType), x.time());
        }).skip(// 
        1).distinctUntilChanged(ts -> ts.object)).doOnNext(x -> {
            State y = x.object;
            SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
            sdf.setTimeZone(TimeZone.getTimeZone("UTC"));
            String line = // 
            y.mmsi + "," + sdf.format(new Date(x.time)) + // 
            "," + y.aisClass + // 
            "," + integer(y.imo) + // 
            "," + integer(y.shipType) + // 
            "," + string(y.name) + ",";
            out.println(line);
        }).subscribe();
    }
}