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

Example 51 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 52 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);
        }
    }
}