Java AisReaders.createReaderFromInputStream方法代码示例

import dk.dma.ais.reader.AisReaders; //导入方法依赖的package包/类
@Test
public void doesNotDetectStocMarciasDriftOnOct02_2014() {
    Tracker tracker = injector.getInstance(EventEmittingTracker.class);
    EventRepository eventRepository = injector.getInstance(EventRepository.class);

    InputStream testDataStream = Thread.currentThread().getContextClassLoader().getResourceAsStream("ais/212123000_drift_1.ais");
    AisReader aisReader = AisReaders.createReaderFromInputStream(testDataStream);

    context.checking(new Expectations() {{
        never(eventRepository).findOngoingEventByVessel(212123000, DriftEvent.class);
        never(eventRepository).save(with(any(DriftEvent.class)));
    }});

    driftAnalysis.start();
    aisReader.registerPacketHandler(aisPacket -> {
        tracker.update(aisPacket);
    });
    aisReader.run();

    context.assertIsSatisfied();
}
 

import dk.dma.ais.reader.AisReaders; //导入方法依赖的package包/类
@Test
public void detectsFriosDriftOnSep28_2014() {
    Tracker tracker = injector.getInstance(EventEmittingTracker.class);
    EventRepository eventRepository = injector.getInstance(EventRepository.class);

    InputStream testDataStream = Thread.currentThread().getContextClassLoader().getResourceAsStream("ais/538004030_drift_1.ais");
    AisReader aisReader = AisReaders.createReaderFromInputStream(testDataStream);

    final ArgumentCaptor<DriftEvent> eventCaptor = ArgumentCaptor.forClass(DriftEvent.class);
    context.checking(new Expectations() {{
        atLeast(1).of(eventRepository).findOngoingEventByVessel(538004030, DriftEvent.class);
        atLeast(1).of(eventRepository).save(with(eventCaptor.getMatcher()));
    }});

    driftAnalysis.start();
    aisReader.registerPacketHandler(aisPacket -> {
        tracker.update(aisPacket);
    });
    aisReader.run();

    context.assertIsSatisfied();
    assertTrue(eventCaptor.getCapturedObject().getDescription().startsWith("FRIO is drifting"));
    assertEquals(MILLIS_TO_LOCALDATETIME_UTC.apply(1411923004556L), eventCaptor.getCapturedObject().getStartTime());
}
 

import dk.dma.ais.reader.AisReaders; //导入方法依赖的package包/类
@Test
public void canDetectLotusSuddenSpeedChangeOnOct05_2014() {
    Tracker tracker = injector.getInstance(EventEmittingTracker.class);
    EventRepository eventRepository = injector.getInstance(EventRepository.class);

    InputStream testDataStream = Thread.currentThread().getContextClassLoader().getResourceAsStream("ais/219165000_ssc_1.ais");
    AisReader aisReader = AisReaders.createReaderFromInputStream(testDataStream);

    final ArgumentCaptor<SuddenSpeedChangeEvent> eventCaptor = ArgumentCaptor.forClass(SuddenSpeedChangeEvent.class);
    context.checking(new Expectations() {{
        atLeast(1).of(eventRepository).findOngoingEventByVessel(219165000, SuddenSpeedChangeEvent.class);
        atLeast(1).of(eventRepository).save(with(eventCaptor.getMatcher()));
    }});

    analysis.start();
    aisReader.registerPacketHandler(aisPacket -> {
        tracker.update(aisPacket);
    });
    aisReader.run();

    context.assertIsSatisfied();
    assertTrue(eventCaptor.getCapturedObject().getDescription().startsWith("Sudden speed change of LOTUS"));
    assertEquals(LocalDateTime.ofInstant(Instant.ofEpochMilli(1412525411424L), ZoneOffset.UTC), eventCaptor.getCapturedObject().getStartTime());
}
 

import dk.dma.ais.reader.AisReaders; //导入方法依赖的package包/类
/**
 * Produce KML output for POSTed AIS data in NMEA format.
 *
 * Use 'curl -X POST -T <ais-data-file> http://127.0.0.1:8090/store/history/kml' to test
 * Or with expression filter:
 * 'curl -X POST -T <ais-data-file> http://127.0.0.1:8090/store/history/kml?filter="m.mmsi=247469000" > test.kmz'
 */
@POST
@Path("/history/kml")
@Produces(MEDIA_TYPE_KMZ)
public Response createKml(@QueryParam("filter") String filterExpression, InputStream inputStream) {
    LOG.debug("Filter expression: " + filterExpression);
    Predicate<AisPacket> filter = isBlank(filterExpression) ? p->true : AisPacketFilters.parseExpressionFilter(filterExpression);

    ArrayList<AisPacket> packets = new ArrayList<>();

    AisReader reader = AisReaders.createReaderFromInputStream(inputStream);
    reader.registerPacketHandler(
        aisPacket -> { if (filter.test(aisPacket)) packets.add(aisPacket); }
    );

    reader.start();
    try {
        reader.join();
    } catch (InterruptedException e) {
        LOG.error(e.getMessage(), e);
        return Response.serverError().build();
    }

    StreamingOutput output = StreamingUtil.createZippedStreamingOutput(packets, AisPacketOutputSinks.newKmlSink(), "history.kml");

    return Response
        .ok()
        .entity(output)
        .type(MEDIA_TYPE_KMZ).build();
}