Examples with Promise org.nustaq.kontraktor.Promise used on opensource projects

Example 31 with Promise

use of org.nustaq.kontraktor.Promise in project kontraktor by RuedigerMoeller.

the class RxJava method rxToJ8StreamTest.

@Test
public void rxToJ8StreamTest() {
    Observable<Integer> range = Observable.range(0, NUM_MSG / 4);
    Publisher<Integer> pub = RxReactiveStreams.toPublisher(range);
    AtomicInteger count = new AtomicInteger(0);
    RateMeasure rm = new RateMeasure("events");
    Promise<Integer> finished = new Promise<>();
    KxReactiveStreams.get().asKxPublisher(pub).async().stream(stream -> {
        stream.forEach(i -> {
            rm.count();
            count.incrementAndGet();
        });
        finished.resolve(count.get());
    });
    Assert.assertTrue(finished.await(50000).intValue() == NUM_MSG / 4);
}

Example 32 with Promise

use of org.nustaq.kontraktor.Promise in project kontraktor by RuedigerMoeller.

the class AsyncFile method readFully.

public IPromise<AsyncFileIOEvent> readFully() {
    ByteBuffer buf = ByteBuffer.allocate((int) length());
    AsyncFileIOEvent ev = new AsyncFileIOEvent(0, 0, buf);
    do {
        ev = read(ev.nextPosition, (int) ((int) length() - ev.nextPosition), buf).await();
    } while (buf.limit() != buf.capacity() && ev.getNextPosition() >= 0);
    return new Promise<>(ev);
}

Example 33 with Promise

use of org.nustaq.kontraktor.Promise in project kontraktor by RuedigerMoeller.

the class AsyncFile method write.

public IPromise<AsyncFileIOEvent> write(long filePosition, ByteBuffer source) {
    if (fileChannel == null)
        throw new RuntimeException("file not opened");
    Actor sender = Actor.current();
    Promise p = new Promise();
    final long bufferStartPos = source.position();
    final ByteBuffer finalTarget = source;
    fileChannel.write(source, filePosition, source, new CompletionHandler<Integer, ByteBuffer>() {

        @Override
        public void completed(Integer result, ByteBuffer attachment) {
            if (source.remaining() > 0) {
                // just retry (will enqueue new message/job to actor mailbox)
                fileChannel.write(source, filePosition, source, this);
            } else {
                long newPos = filePosition + finalTarget.limit() - bufferStartPos;
                if (result < 0)
                    newPos = -1;
                attachment.flip();
                p.resolve(new AsyncFileIOEvent(newPos, result, finalTarget));
            }
        }

        @Override
        public void failed(Throwable exc, ByteBuffer attachment) {
            p.reject(exc);
        }
    });
    return p;
}

Example 34 with Promise

use of org.nustaq.kontraktor.Promise in project kontraktor by RuedigerMoeller.

the class AsyncFile method read.

public IPromise<AsyncFileIOEvent> read(long position, int chunkSize, ByteBuffer target) {
    if (fileChannel == null)
        throw new RuntimeException("file not opened");
    Actor sender = Actor.current();
    Promise p = new Promise();
    if (target == null) {
        target = ByteBuffer.allocate(chunkSize);
    }
    final long bufferStartPos = target.position();
    final ByteBuffer finalTarget = target;
    fileChannel.read(target, position, target, new CompletionHandler<Integer, ByteBuffer>() {

        @Override
        public void completed(Integer result, ByteBuffer attachment) {
            // FIXME: how to handle incomplete read. (currently burden on reader)
            long newPos = position + finalTarget.limit() - bufferStartPos;
            if (result < 0)
                newPos = -1;
            attachment.flip();
            p.resolve(new AsyncFileIOEvent(newPos, result, finalTarget));
        }

        @Override
        public void failed(Throwable exc, ByteBuffer attachment) {
            p.reject(exc);
        }
    });
    return p;
}

Example 35 with Promise

use of org.nustaq.kontraktor.Promise in project kontraktor by RuedigerMoeller.

the class Mailer method sendMail.

/**
 * @param receiver - the mail receiver
 * @param subject - subject of the mail
 * @param content - mail content
 * @param displayName - display name shown instead of the sender email ..
 * @return promise ..
 */
public IPromise<Boolean> sendMail(String receiver, String subject, String content, String displayName) /* Sender Name*/
{
    if (receiver == null || !receiver.contains("@")) {
        return new Promise<>(false, "Not a valid email address: " + receiver);
    }
    try {
        Properties props = new Properties();
        props.put("mail.smtp.auth", settings.getSmtpAuth());
        props.put("mail.smtp.starttls.enable", settings.getStartTls());
        props.put("mail.smtp.host", settings.getSmtpHost());
        props.put("mail.smtp.port", settings.getSmtpPort());
        Session session = Session.getInstance(props);
        MimeMessage message = new MimeMessage(session);
        message.setFrom(displayName == null ? new InternetAddress("support@juptr.io") : new InternetAddress("support@juptr.io", displayName));
        message.setSubject(subject);
        message.setText(content, "utf-8", "html");
        message.setRecipient(Message.RecipientType.TO, new InternetAddress(receiver, false));
        message.setSentDate(new Date());
        Transport.send(message, settings.getUser(), settings.getPassword());
        Log.Info(this, "definitely sent mail to " + receiver + " subject:" + subject);
        return new Promise<>(true);
    } catch (Exception e) {
        Log.Warn(this, e);
        return new Promise<>(false, e);
    }
}