Examples with Publication io.aeron.Publication used on opensource projects

Example 61 with Publication

use of io.aeron.Publication in project Aeron by real-logic.

the class RecordingDescriptorCollectorTest method createRecordings.

private void createRecordings(final AeronArchive aeronArchive, final int numRecordings) {
    final UnsafeBuffer message = new UnsafeBuffer("this is some data".getBytes());
    for (int i = 0; i < numRecordings; i++) {
        try (Publication publication = aeronArchive.addRecordedPublication("aeron:ipc?ssc=true", 10000 + i)) {
            long expectedPosition;
            while ((expectedPosition = publication.offer(message, 0, message.capacity())) < 0) {
                Tests.yield();
            }
            long recordingId;
            while ((recordingId = aeronArchive.findLastMatchingRecording(0, "aeron:ipc", publication.streamId(), publication.sessionId())) == Aeron.NULL_VALUE) {
                Tests.yield();
            }
            while (expectedPosition < aeronArchive.getRecordingPosition(recordingId)) {
                Tests.yield();
            }
        }
    }
}

Example 62 with Publication

use of io.aeron.Publication in project Aeron by real-logic.

the class RecordedBasicPublisher method main.

/**
 * Main method for launching the process.
 *
 * @param args passed to the process.
 * @throws InterruptedException if the thread sleep delay is interrupted.
 */
public static void main(final String[] args) throws InterruptedException {
    System.out.println("Publishing to " + CHANNEL + " on stream id " + STREAM_ID);
    final AtomicBoolean running = new AtomicBoolean(true);
    SigInt.register(() -> running.set(false));
    // Create a unique response stream id so not to clash with other archive clients.
    final AeronArchive.Context archiveCtx = new AeronArchive.Context().controlResponseStreamId(AeronArchive.Configuration.controlResponseStreamId() + 1);
    try (AeronArchive archive = AeronArchive.connect(archiveCtx)) {
        archive.startRecording(CHANNEL, STREAM_ID, SourceLocation.LOCAL);
        try (Publication publication = archive.context().aeron().addPublication(CHANNEL, STREAM_ID)) {
            final IdleStrategy idleStrategy = YieldingIdleStrategy.INSTANCE;
            // Wait for recording to have started before publishing.
            final CountersReader counters = archive.context().aeron().countersReader();
            int counterId = RecordingPos.findCounterIdBySession(counters, publication.sessionId());
            while (CountersReader.NULL_COUNTER_ID == counterId) {
                if (!running.get()) {
                    return;
                }
                idleStrategy.idle();
                counterId = RecordingPos.findCounterIdBySession(counters, publication.sessionId());
            }
            final long recordingId = RecordingPos.getRecordingId(counters, counterId);
            System.out.println("Recording started: recordingId = " + recordingId);
            for (int i = 0; i < NUMBER_OF_MESSAGES && running.get(); i++) {
                final String message = "Hello World! " + i;
                final byte[] messageBytes = message.getBytes();
                BUFFER.putBytes(0, messageBytes);
                System.out.print("Offering " + i + "/" + NUMBER_OF_MESSAGES + " - ");
                final long result = publication.offer(BUFFER, 0, messageBytes.length);
                checkResult(result);
                final String errorMessage = archive.pollForErrorResponse();
                if (null != errorMessage) {
                    throw new IllegalStateException(errorMessage);
                }
                Thread.sleep(TimeUnit.SECONDS.toMillis(1));
            }
            idleStrategy.reset();
            while (counters.getCounterValue(counterId) < publication.position()) {
                if (!RecordingPos.isActive(counters, counterId, recordingId)) {
                    throw new IllegalStateException("recording has stopped unexpectedly: " + recordingId);
                }
                idleStrategy.idle();
            }
        } finally {
            System.out.println("Done sending.");
            archive.stopRecording(CHANNEL, STREAM_ID);
        }
    }
}

Example 63 with Publication

use of io.aeron.Publication in project aeron by real-logic.

the class AeronArchiveTest method closeOwningAeronClient.

@Test
void closeOwningAeronClient() {
    final long controlSessionId = 42;
    final Aeron.Context aeronContext = mock(Aeron.Context.class);
    when(aeronContext.nanoClock()).thenReturn(SystemNanoClock.INSTANCE);
    when(aeron.context()).thenReturn(aeronContext);
    final IllegalMonitorStateException aeronException = new IllegalMonitorStateException("aeron closed");
    doThrow(aeronException).when(aeron).close();
    final Publication publication = mock(Publication.class);
    when(publication.isConnected()).thenReturn(true);
    doThrow(new IllegalStateException("publication is closed")).when(publication).close();
    final Subscription subscription = mock(Subscription.class);
    when(controlResponsePoller.subscription()).thenReturn(subscription);
    doThrow(new IndexOutOfBoundsException("subscription")).when(subscription).close();
    when(archiveProxy.publication()).thenReturn(publication);
    final IndexOutOfBoundsException closeSessionException = new IndexOutOfBoundsException();
    when(archiveProxy.closeSession(controlSessionId)).thenThrow(closeSessionException);
    final Context context = new Context().aeron(aeron).idleStrategy(NoOpIdleStrategy.INSTANCE).messageTimeoutNs(100).lock(NoOpLock.INSTANCE).errorHandler(errorHandler).ownsAeronClient(true);
    final AeronArchive aeronArchive = new AeronArchive(context, controlResponsePoller, archiveProxy, controlSessionId);
    final IllegalMonitorStateException ex = assertThrows(IllegalMonitorStateException.class, aeronArchive::close);
    assertSame(aeronException, ex);
    final InOrder inOrder = inOrder(errorHandler);
    inOrder.verify(errorHandler).onError(closeSessionException);
    inOrder.verifyNoMoreInteractions();
}

Example 64 with Publication

use of io.aeron.Publication in project aeron by real-logic.

the class AeronArchiveTest method closeNotOwningAeronClient.

@Test
void closeNotOwningAeronClient() {
    final long controlSessionId = 42;
    final Aeron.Context aeronContext = mock(Aeron.Context.class);
    when(aeronContext.nanoClock()).thenReturn(SystemNanoClock.INSTANCE);
    when(aeron.context()).thenReturn(aeronContext);
    doThrow(new IllegalMonitorStateException("aeron closed")).when(aeron).close();
    final Publication publication = mock(Publication.class);
    when(publication.isConnected()).thenReturn(true);
    final IllegalStateException publicationException = new IllegalStateException("publication is closed");
    doThrow(publicationException).when(publication).close();
    final Subscription subscription = mock(Subscription.class);
    when(controlResponsePoller.subscription()).thenReturn(subscription);
    final IndexOutOfBoundsException subscriptionException = new IndexOutOfBoundsException("subscription");
    doThrow(subscriptionException).when(subscription).close();
    when(archiveProxy.publication()).thenReturn(publication);
    final IndexOutOfBoundsException closeSessionException = new IndexOutOfBoundsException();
    when(archiveProxy.closeSession(controlSessionId)).thenThrow(closeSessionException);
    final Context context = new Context().aeron(aeron).idleStrategy(NoOpIdleStrategy.INSTANCE).messageTimeoutNs(100).lock(NoOpLock.INSTANCE).errorHandler(errorHandler).ownsAeronClient(false);
    final AeronArchive aeronArchive = new AeronArchive(context, controlResponsePoller, archiveProxy, controlSessionId);
    aeronArchive.close();
    final InOrder inOrder = inOrder(errorHandler);
    inOrder.verify(errorHandler).onError(closeSessionException);
    inOrder.verify(errorHandler).onError(publicationException);
    inOrder.verify(errorHandler).onError(subscriptionException);
    inOrder.verifyNoMoreInteractions();
}

Example 65 with Publication

use of io.aeron.Publication in project aeron by real-logic.

the class BasicPublisher method main.

/**
 * Main method for launching the process.
 *
 * @param args passed to the process.
 * @throws InterruptedException if the thread sleep delay is interrupted.
 */
public static void main(final String[] args) throws InterruptedException {
    System.out.println("Publishing to " + CHANNEL + " on stream id " + STREAM_ID);
    // If configured to do so, create an embedded media driver within this application rather
    // than relying on an external one.
    final MediaDriver driver = EMBEDDED_MEDIA_DRIVER ? MediaDriver.launchEmbedded() : null;
    final Aeron.Context ctx = new Aeron.Context();
    if (EMBEDDED_MEDIA_DRIVER) {
        ctx.aeronDirectoryName(driver.aeronDirectoryName());
    }
    // clean up resources when this try block is finished
    try (Aeron aeron = Aeron.connect(ctx);
        Publication publication = aeron.addPublication(CHANNEL, STREAM_ID)) {
        final UnsafeBuffer buffer = new UnsafeBuffer(BufferUtil.allocateDirectAligned(256, 64));
        for (long i = 0; i < NUMBER_OF_MESSAGES; i++) {
            System.out.print("Offering " + i + "/" + NUMBER_OF_MESSAGES + " - ");
            final int length = buffer.putStringWithoutLengthAscii(0, "Hello World! " + i);
            final long result = publication.offer(buffer, 0, length);
            if (result > 0) {
                System.out.println("yay!");
            } else if (result == Publication.BACK_PRESSURED) {
                System.out.println("Offer failed due to back pressure");
            } else if (result == Publication.NOT_CONNECTED) {
                System.out.println("Offer failed because publisher is not connected to a subscriber");
            } else if (result == Publication.ADMIN_ACTION) {
                System.out.println("Offer failed because of an administration action in the system");
            } else if (result == Publication.CLOSED) {
                System.out.println("Offer failed because publication is closed");
                break;
            } else if (result == Publication.MAX_POSITION_EXCEEDED) {
                System.out.println("Offer failed due to publication reaching its max position");
                break;
            } else {
                System.out.println("Offer failed due to unknown reason: " + result);
            }
            if (!publication.isConnected()) {
                System.out.println("No active subscribers detected");
            }
            Thread.sleep(TimeUnit.SECONDS.toMillis(1));
        }
        System.out.println("Done sending.");
        if (LINGER_TIMEOUT_MS > 0) {
            System.out.println("Lingering for " + LINGER_TIMEOUT_MS + " milliseconds...");
            Thread.sleep(LINGER_TIMEOUT_MS);
        }
    }
    CloseHelper.close(driver);
}