public void testRedelivery() throws Exception {
AMQPContext ctx = new AMQPContext(AMQPContext.CLIENT);
Connection conn = new Connection(ctx, host, port, false);
conn.connect();
Session s = conn.createSession(INBOUND_WINDOW, OUTBOUND_WINDOW);
Producer p = s.createProducer(QUEUE, QoS.AT_MOST_ONCE);
p.send(msg());
p.close();
Consumer c = s.createConsumer(QUEUE, CONSUMER_LINK_CREDIT, QoS.AT_LEAST_ONCE, false, null);
AMQPMessage m1 = c.receive();
assertTrue(m1.getHeader().getFirstAcquirer().getValue());
assertFalse(m1.isSettled());
s.close();
s = conn.createSession(INBOUND_WINDOW, OUTBOUND_WINDOW);
c = s.createConsumer(QUEUE, CONSUMER_LINK_CREDIT, QoS.AT_LEAST_ONCE, false, null);
AMQPMessage m2 = c.receive();
m2.accept();
assertTrue(compareMessageData(m1, m2));
assertFalse(m2.getHeader().getFirstAcquirer().getValue());
assertNull(get(c));
conn.close();
}
private void route(String consumerSource, String producerTarget, String routingKey, boolean succeed) throws Exception {
AMQPContext ctx = new AMQPContext(AMQPContext.CLIENT);
Connection conn = new Connection(ctx, host, port, false);
conn.connect();
Session s = conn.createSession(INBOUND_WINDOW, OUTBOUND_WINDOW);
Consumer c = s.createConsumer(consumerSource, CONSUMER_LINK_CREDIT, QoS.AT_LEAST_ONCE, false, null);
Producer p = s.createProducer(producerTarget, QoS.AT_LEAST_ONCE);
AMQPMessage msg = msg();
AmqpValue sentinel = new AmqpValue(new AMQPDouble(Math.random()));
msg.setAmqpValue(sentinel);
Properties props = new Properties();
props.setSubject(new AMQPString(routingKey));
msg.setProperties(props);
p.send(msg);
if (succeed) {
AMQPMessage m = c.receive();
assertNotNull(m);
assertEquals(sentinel.getValue().getValueString(), m.getAmqpValue().getValue().getValueString());
m.accept();
} else {
assertNull(get(c));
}
c.close();
p.close();
conn.close();
}
public void run() {
producer.getReady();
MyBlockingQueue<Integer> buffer = producer.getBuffer();
Integer item = buffer.take();
while (item != null) {
System.out.println(this + " fetches " + item + ".");
Thread.yield();
item = buffer.take();
}
}
public static void main(String[] args) throws InterruptedException {
final int NUM = 10;
Producer producer = new Producer(10);
Consumer[] consumers = new Consumer[NUM];
for (int i = 0; i < NUM; i++) {
consumers[i] = new Consumer(producer);
}
System.out.println("\t== START ==");
producer.start();
for (int i = 0; i < NUM; i++) {
consumers[i].join();
}
System.out.println("\t== OVER ==");
}
/**
* Create a fat pipe using the threads from the parent
*
* @param producer the producer
* @param pool the group of pipes to add to
*/
public PooledFatPipe(Producer<T, S> producer, Pool pool, ExceptionListener listener) {
this.producer = producer;
this.listener = listener;
this.pool = pool;
name = producer.getClass().getSimpleName();
lock = new Semaphore(0);
}
public void testRoundTrip() throws Exception {
AMQPContext ctx = new AMQPContext(AMQPContext.CLIENT);
Connection conn = new Connection(ctx, host, port, false);
conn.connect();
Session s = conn.createSession(INBOUND_WINDOW, OUTBOUND_WINDOW);
Producer p = s.createProducer(QUEUE, QoS.AT_LEAST_ONCE);
p.send(msg());
p.close(); // Settlement happens here
Consumer c = s.createConsumer(QUEUE, CONSUMER_LINK_CREDIT, QoS.AT_LEAST_ONCE, false, null);
AMQPMessage m = c.receive();
m.accept();
assertEquals(1, m.getData().size());
assertEquals(data(), m.getData().get(0));
conn.close();
}
public void testReject() throws Exception {
AMQPContext ctx = new AMQPContext(AMQPContext.CLIENT);
Connection conn = new Connection(ctx, host, port, false);
conn.connect();
Session s = conn.createSession(INBOUND_WINDOW, OUTBOUND_WINDOW);
Producer p = s.createProducer(QUEUE, QoS.AT_LEAST_ONCE);
p.send(msg());
p.close();
Consumer c = s.createConsumer(QUEUE, CONSUMER_LINK_CREDIT, QoS.AT_LEAST_ONCE, false, null);
AMQPMessage m = c.receive();
m.reject();
assertNull(get(c));
conn.close();
}
public void setProducer(Producer p) {
synchronized (this) {
if (emitting) {
missedProducer = p != null ? p : NULL_PRODUCER;
return;
}
emitting = true;
}
boolean skipFinal = false;
try {
currentProducer = p;
long r = requested;
if (p != null && r != 0) {
p.request(r);
}
emitLoop();
skipFinal = true;
} finally {
if (!skipFinal) {
synchronized (this) {
emitting = false;
}
}
}
}
private void routeInvalidTarget(String producerTarget) throws Exception {
AMQPContext ctx = new AMQPContext(AMQPContext.CLIENT);
Connection conn = new Connection(ctx, host, port, false);
conn.connect();
Session s = conn.createSession(INBOUND_WINDOW, OUTBOUND_WINDOW);
try {
Producer p = s.createProducer(producerTarget, QoS.AT_LEAST_ONCE);
p.close();
fail("Target '" + producerTarget + "' should fail");
}
catch (Exception e) {
// no-op
}
finally {
conn.close();
}
}
private void decorationTest(DecorationProtocol d, Map<AMQPString, AMQPType> map) throws Exception {
AMQPContext ctx = new AMQPContext(AMQPContext.CLIENT);
Connection conn = new Connection(ctx, host, port, false);
conn.connect();
Session s = conn.createSession(INBOUND_WINDOW, OUTBOUND_WINDOW);
Producer p = s.createProducer(QUEUE, QoS.AT_LEAST_ONCE);
AMQPMessage msg = msg();
d.decorateMessage(msg, map);
p.send(msg);
p.close();
Consumer c = s.createConsumer(QUEUE, CONSUMER_LINK_CREDIT, QoS.AT_LEAST_ONCE, false, null);
AMQPMessage recvMsg = c.receive();
recvMsg.accept();
compareMaps(map, d.getDecoration(recvMsg));
conn.close();
}
/**
* Look for data from all the inputs
*
* @return true if data was consumed
*/
private boolean poll(Signal signal, Signal parent) {
AtomicReferenceArray<T> o = outputs;
for (int i = 0; i < o.length(); i++) {
T input = o.getAndSet(i, null);
if (input == null) continue;
long seq = ++sequence;
if (parent != null) parent.signal();
S product = producer.execute(input, reuseReceptors.get(i), signal);
signal.signal();
if (!consume(product, seq, 0)) {
Thread.yield();
if (!consume(product, seq, 0))
logger.info(
"failed to consume product (" + product + ") from producer (" + producer + ")");
}
producer.complete(product);
return product != null;
}
return false;
}
public void fragmentation(long FrameSize, int PayloadSize)
throws UnsupportedProtocolVersionException, AMQPException, AuthenticationException, IOException {
AMQPContext ctx = new AMQPContext(AMQPContext.CLIENT);
Connection conn = new Connection(ctx, host, port, false);
conn.setMaxFrameSize(FrameSize);
conn.connect();
Session s = conn.createSession(INBOUND_WINDOW, OUTBOUND_WINDOW);
Producer p = s.createProducer(QUEUE, QoS.AT_LEAST_ONCE);
AMQPMessage msg = new AMQPMessage();
msg.addData(new Data(new byte [PayloadSize]));
p.send(msg);
p.close();
Consumer c = s.createConsumer(QUEUE, CONSUMER_LINK_CREDIT, QoS.AT_LEAST_ONCE, false, null);
AMQPMessage m = c.receive();
m.accept();
c.close();
assertEquals(PayloadSize, m.getData().get(0).getValue().length);
conn.close();
}
@Override
public void request(long n) {
if (n < 0) {
throw new IllegalArgumentException("n >= 0 required");
}
if (n == 0) {
return;
}
synchronized (this) {
if (emitting) {
missedRequested += n;
return;
}
emitting = true;
}
boolean skipFinal = false;
try {
long r = requested;
long u = r + n;
if (u < 0) {
u = Long.MAX_VALUE;
}
requested = u;
Producer p = currentProducer;
if (p != null) {
p.request(n);
}
emitLoop();
skipFinal = true;
} finally {
if (!skipFinal) {
synchronized (this) {
emitting = false;
}
}
}
}
public void testDataTypes() throws Exception {
AMQPContext ctx = new AMQPContext(AMQPContext.CLIENT);
Connection conn = new Connection(ctx, host, port, false);
conn.connect();
Session s = conn.createSession(INBOUND_WINDOW, OUTBOUND_WINDOW);
Producer p = s.createProducer(QUEUE, QoS.AT_LEAST_ONCE);
AMQPMessage msg = new AMQPMessage();
List<AMQPType> al = new ArrayList<AMQPType>();
al.add(new AMQPBoolean(true));
al.add(new AMQPByte(Byte.MAX_VALUE));
al.add(new AMQPChar(Character.CURRENCY_SYMBOL));
al.add(new AMQPDecimal64(BigDecimal.TEN));
al.add(new AMQPDouble(Double.NaN));
al.add(new AMQPInt(Integer.MIN_VALUE));
al.add(new AMQPNull());
al.add(new AMQPString("\uFFF9"));
al.add(new AMQPSymbol(new String(new char[256])));
al.add(new AMQPTimestamp(Long.MAX_VALUE));
al.add(new AMQPUuid(System.currentTimeMillis(), Long.MIN_VALUE));
al.add(new AMQPUnsignedShort(0));
al.add(new AMQPArray(AMQPBoolean.FALSE.getCode(), new AMQPBoolean[]{}));
al.add(new AmqpSequence(new ArrayList<AMQPType>()));
AmqpSequence seq = new AmqpSequence(al);
AmqpValue val = new AmqpValue(seq);
msg.setAmqpValue(val);
p.send(msg);
p.close();
Consumer c = s.createConsumer(QUEUE, CONSUMER_LINK_CREDIT, QoS.AT_LEAST_ONCE, false, null);
AMQPMessage recvMsg = c.receive();
recvMsg.accept();
assertEquals(val.getValue().getValueString(), recvMsg.getAmqpValue().getValue().getValueString());
conn.close();
}
/**
* Create fat pipe using several threads
*
* @param producer the producer
* @param poolSize the size of the thread group.
*/
public PooledFatPipe(Producer<T, S> producer, int poolSize, ExceptionListener listener) {
this(producer, poolSize, listener, producer.getClass().getSimpleName());
}
void emitLoop() {
final Subscriber<? super T> c = child;
outer:
for (; ; ) {
long localRequested;
Producer localProducer;
Object localTerminal;
List<T> q;
synchronized (this) {
localRequested = missedRequested;
localProducer = missedProducer;
localTerminal = missedTerminal;
q = queue;
if (localRequested == 0L && localProducer == null && q == null && localTerminal == null) {
emitting = false;
return;
}
missedRequested = 0L;
missedProducer = null;
queue = null;
missedTerminal = null;
}
boolean empty = q == null || q.isEmpty();
if (localTerminal != null) {
if (localTerminal != Boolean.TRUE) {
c.onError((Throwable) localTerminal);
return;
} else if (empty) {
c.onCompleted();
return;
}
}
long e = 0;
if (q != null) {
for (T v : q) {
if (c.isUnsubscribed()) {
return;
} else if (hasError) {
continue outer; // if an error has been set, shortcut the loop and act on it
}
try {
c.onNext(v);
} catch (Throwable ex) {
Exceptions.throwOrReport(ex, c, v);
return;
}
}
e += q.size();
}
long r = requested;
// if requested is max, we don't do any accounting
if (r != Long.MAX_VALUE) {
// if there were missing requested, add it up
if (localRequested != 0L) {
long u = r + localRequested;
if (u < 0) {
u = Long.MAX_VALUE;
}
r = u;
}
// if there were emissions and we don't run on max since the last check, subtract
if (e != 0L && r != Long.MAX_VALUE) {
long u = r - e;
if (u < 0) {
throw new IllegalStateException("More produced than requested");
}
r = u;
}
requested = r;
}
if (localProducer != null) {
if (localProducer == NULL_PRODUCER) {
currentProducer = null;
} else {
currentProducer = localProducer;
if (r != 0L) {
localProducer.request(r);
}
}
} else {
Producer p = currentProducer;
if (p != null && localRequested != 0L) {
p.request(localRequested);
}
}
}
}