Examples with VesselPosition au.gov.amsa.navigation.VesselPosition used on opensource projects

Example 1 with VesselPosition

use of au.gov.amsa.navigation.VesselPosition in project risky by amsa-code.

the class DriftingLayer method filenameToDriftCandidates.

private static Func1<String, Observable<DriftCandidate>> filenameToDriftCandidates() {
    return new Func1<String, Observable<DriftCandidate>>() {

        @Override
        public Observable<DriftCandidate> call(final String filename) {
            return Streams.nmeaFromGzip(filename).compose(AisVesselPositions.positions()).doOnRequest(new Action1<Long>() {

                @Override
                public void call(Long n) {
                // log.info("requested=" + n);
                }
            }).doOnNext(new Action1<VesselPosition>() {

                final long startTime = System.currentTimeMillis();

                long lastTime = System.currentTimeMillis();

                DecimalFormat df = new DecimalFormat("0");

                @Override
                public void call(VesselPosition vp) {
                    long n = 100000;
                    if (totalCount.incrementAndGet() % n == 0) {
                        long now = System.currentTimeMillis();
                        final double rate;
                        if (now == lastTime)
                            rate = -1;
                        else {
                            rate = n / (double) (now - lastTime) * 1000d;
                        }
                        lastTime = now;
                        final double rateSinceStart;
                        if (now == startTime)
                            rateSinceStart = -1;
                        else
                            rateSinceStart = totalCount.get() / (double) (now - startTime) * 1000d;
                        log.info("totalCount=" + totalCount.get() + ", msgsPerSecond=" + df.format(rate) + ", msgPerSecondOverall=" + df.format(rateSinceStart));
                    }
                }
            }).compose(DriftDetector.detectDrift()).subscribeOn(Schedulers.computation()).doOnCompleted(new Action0() {

                @Override
                public void call() {
                    log.info("finished " + filename);
                }
            });
        }
    };
}

Example 2 with VesselPosition

use of au.gov.amsa.navigation.VesselPosition in project risky by amsa-code.

the class DriftingLayer method render.

@Override
public void render(Graphics2D g, WmsRequest request) {
    log.info("request=" + request);
    log.info("drawing " + queue.size() + " positions");
    final Projector projector = WmsUtil.getProjector(request);
    Position a = projector.toPosition(0, 0);
    Position b = projector.toPosition(request.getWidth(), request.getHeight());
    Rectangle r = Geometries.rectangle(a.getLon(), b.getLat(), b.getLon(), a.getLat());
    Optional<VesselPosition> last = Optional.empty();
    Optional<Point> lastPoint = Optional.empty();
    // Iterable<VesselPosition> positions = tree
    // .search(r)
    // .map(new Func1<Entry<VesselPosition,
    // com.github.davidmoten.rtree.geometry.Point>, VesselPosition>() {
    // 
    // @Override
    // public VesselPosition call(
    // Entry<VesselPosition, com.github.davidmoten.rtree.geometry.Point>
    // entry) {
    // return entry.value();
    // }
    // 
    // }).toBlocking().toIterable();
    ConcurrentLinkedQueue<VesselPosition> positions = queue;
    Point startPoint = null;
    for (VesselPosition p : positions) {
        // expecting positions to be in mmsi, time order
        Point point = projector.toPoint(p.lat(), p.lon());
        if (last.isPresent() && p.id().equals(last.get().id()) && p.data().isPresent() && !p.data().get().equals(p.time()) && isOkMovement(p, last.get())) {
            // join the last position with this one with a line
            g.setColor(Color.gray);
            g.drawLine(lastPoint.get().x, lastPoint.get().y, point.x, point.y);
        }
        if (p.data().get().equals(p.time()) || (last.isPresent() && !isOkMovement(p, last.get()))) {
            g.setColor(Color.red);
            g.drawRect(point.x, point.y, 1, 1);
            startPoint = point;
        } else if (startPoint != null) {
            // draw intermediate point
            g.setColor(Color.darkGray);
            g.drawRect(point.x, point.y, 1, 1);
            // redraw startPoint so that a slightly moving drift doesn't
            // overdraw the startPoint with the color of an intermediate
            // point
            g.setColor(Color.red);
            g.drawRect(startPoint.x, startPoint.y, 1, 1);
        }
        last = Optional.of(p);
        lastPoint = Optional.of(point);
    }
    log.info("drawn");
}

Example 3 with VesselPosition

use of au.gov.amsa.navigation.VesselPosition in project risky by amsa-code.

the class DriftingLayer method getInfo.

@Override
public String getInfo(Date time, WmsRequest request, final Point point, String mimeType) {
    final int HOTSPOT_SIZE = 5;
    final Projector projector = WmsUtil.getProjector(request);
    final StringBuilder response = new StringBuilder();
    response.append("<html>");
    Observable.from(queue).filter(new Func1<VesselPosition, Boolean>() {

        @Override
        public Boolean call(VesselPosition p) {
            Point pt = projector.toPoint(p.lat(), p.lon());
            return Math.abs(point.x - pt.x) <= HOTSPOT_SIZE && Math.abs(point.y - pt.y) <= HOTSPOT_SIZE;
        }
    }).doOnNext(new Action1<VesselPosition>() {

        @Override
        public void call(VesselPosition p) {
            response.append("<p>");
            response.append("<a href=\"https://www.fleetmon.com/en/vessels?s=" + p.id().uniqueId() + "\">mmsi=" + p.id().uniqueId() + "</a>, time=" + new Date(p.time()));
            if (p.shipType().isPresent()) {
                response.append(", ");
                response.append(ShipTypeDecoder.getShipType(p.shipType().get()));
            }
            response.append("</p>");
            response.append("<p>");
            response.append(p.toString());
            response.append("</p>");
        }
    }).subscribe();
    response.append("</html>");
    return response.toString();
}

Example 4 with VesselPosition

use of au.gov.amsa.navigation.VesselPosition in project risky by amsa-code.

the class OperatorDriftDistanceCheck method call.

@Override
public Subscriber<? super VesselPosition> call(final Subscriber<? super VesselPosition> child) {
    return new Subscriber<VesselPosition>(child) {

        Optional<Position> min = empty();

        Optional<Position> max = empty();

        Optional<Identifier> id = empty();

        List<VesselPosition> buffer = new LinkedList<VesselPosition>();

        @Override
        public void onCompleted() {
            buffer.clear();
            child.onCompleted();
        }

        @Override
        public void onError(Throwable e) {
            buffer.clear();
            child.onError(e);
        }

        @Override
        public void onNext(VesselPosition vp) {
            if (!id.isPresent() || (id.isPresent() && vp.id().uniqueId() != id.get().uniqueId()) || vp.data().get().equals(vp.time())) {
                min = Optional.of(Position.create(vp.lat(), vp.lon()));
                max = Optional.of(Position.create(vp.lat(), vp.lon()));
                id = Optional.of(vp.id());
                buffer.clear();
            } else {
                min = Optional.of(min(min.get(), Position.create(vp.lat(), vp.lon())));
                max = Optional.of(max(max.get(), Position.create(vp.lat(), vp.lon())));
            }
            buffer.add(vp);
            if (distanceKm(min.get(), max.get()) >= MIN_DISTANCE_THRESHOLD_KM) {
                for (VesselPosition p : buffer) {
                    child.onNext(p);
                }
                buffer.clear();
            }
        }
    };
}