Examples with MessageTransportException net.dempsy.transport.MessageTransportException used on opensource projects

Example 1 with MessageTransportException

use of net.dempsy.transport.MessageTransportException in project Dempsy by Dempsy.

the class BlockingQueueTest method testBlockingQueueOverflow.

/**
 * Test overflow for a blocking Transport around a queue with depth one. While the transport will not call the, and does not even have a , overflow handler,
 * every message will call the overflow handler on
 * the receiver since the queue is always full.
 *
 * @throws Throwable
 */
@Test
public void testBlockingQueueOverflow() throws Throwable {
    final AtomicReference<String> message = new AtomicReference<String>(null);
    final ArrayBlockingQueue<Object> input = new ArrayBlockingQueue<>(1);
    try (@SuppressWarnings("resource") SystemPropertyManager // test only works when the blocking queue blocks
    props = new SystemPropertyManager().set(BlockingQueueSenderFactory.class.getPackageName() + "." + BlockingQueueSenderFactory.BLOCKING_KEY, "true");
        final TestInfrastructure infra = new TestInfrastructure(new DefaultThreadingModel("BQTest-testBlockingQueueOverflow-"));
        final Receiver r = new BlockingQueueReceiver(input);
        final TransportManager tranMan = chain(new TransportManager(), c -> c.start(infra));
        final SenderFactory sf = tranMan.getAssociatedInstance(transportTypeId)) {
        final Sender sender = sf.getSender(r.getAddress(infra));
        final AtomicBoolean finallySent = new AtomicBoolean(false);
        final AtomicLong receiveCount = new AtomicLong();
        // fill up queue
        sender.send("Hello");
        final Thread t = new Thread(() -> {
            try {
                sender.send("Hello again");
            } catch (final MessageTransportException | InterruptedException e) {
                throw new RuntimeException(e);
            }
            finallySent.set(true);
        });
        t.start();
        Thread.sleep(100);
        // the thread should be hung blocked on the send
        assertFalse(finallySent.get());
        // Start the receiver to read
        r.start((final String msg) -> {
            message.set(new String(msg));
            receiveCount.incrementAndGet();
            return true;
        }, infra);
        // 2 messages should have been read and the 2nd should be "Hello again"
        assertTrue(poll(o -> "Hello again".equals(message.get())));
        // The thread should shut down eventually
        assertTrue(poll(o -> !t.isAlive()));
    }
}

Example 2 with MessageTransportException

use of net.dempsy.transport.MessageTransportException in project Dempsy by Dempsy.

the class PassthroughSenderFactory method getSender.

@Override
public synchronized PassthroughSender getSender(final NodeAddress destination) throws MessageTransportException {
    PassthroughSender ret = senders.get(destination);
    if (ret == null) {
        final PassthroughReceiver r = PassthroughReceiver.receivers.get(Long.valueOf(((PassthroughAddress) destination).destinationId));
        if (r == null)
            throw new MessageTransportException("Recveiver for " + destination + " is shut down");
        ret = new PassthroughSender(r, statsCollector, this);
        senders.put(destination, ret);
    }
    return ret;
}

Example 3 with MessageTransportException

use of net.dempsy.transport.MessageTransportException in project Dempsy by Dempsy.

the class NioReceiver method start.

@SuppressWarnings("unchecked")
@Override
public void start(final Listener<?> listener, final Infrastructure infra) throws MessageTransportException {
    if (!isRunning.get())
        throw new IllegalStateException("Cannot restart an " + NioReceiver.class.getSimpleName());
    thePlug = infra.getThePlug();
    if (binding == null)
        // sets binding via side affect.
        getAddress(infra);
    // before starting the acceptor, make sure we have Readers created.
    try {
        for (int i = 0; i < readers.length; i++) readers[i] = new Reader<T>(isRunning, address, (Listener<T>) listener, serializer, maxMessageSize, thePlug);
    } catch (final IOException ioe) {
        LOGGER.error(address.toString() + " failed to start up readers", ioe);
        throw new MessageTransportException(address.toString() + " failed to start up readers", ioe);
    }
    final ThreadingModel threadingModel = infra.getThreadingModel();
    // now start the readers.
    for (int i = 0; i < readers.length; i++) threadingModel.runDaemon(readers[i], "nio-reader-" + i + "-" + address);
    // start the acceptor
    threadingModel.runDaemon(acceptor = new Acceptor(binding, isRunning, readers, address, thePlug), "nio-acceptor-" + address);
}

Example 4 with MessageTransportException

use of net.dempsy.transport.MessageTransportException in project Dempsy by Dempsy.

the class NioSenderFactory method getSender.

@Override
public NioSender getSender(final NodeAddress destination) throws MessageTransportException {
    final TcpAddress tcpaddr = (TcpAddress) destination;
    final NioSender ret;
    if (isRunning.get()) {
        ret = senders.computeIfAbsent(tcpaddr, a -> new NioSender(a, this));
    } else
        throw new MessageTransportException(nodeId + " sender had getSender called while stopped.");
    try {
        ret.connect(false);
    } catch (final IOException e) {
        throw new MessageTransportException(nodeId + " sender failed to connect to " + destination, e);
    }
    return ret;
}