@Override
protected void waitForConnection() throws InterruptedException {
super.waitForConnection();
try {
channel.confirmSelect();
} catch (IOException e) {
// should never happen - not important for the example scope
e.printStackTrace();
}
channel.addConfirmListener(
new ConfirmListener() {
@Override
public void handleAck(long deliveryTag, boolean multiple) throws IOException {
if (multiple) {
ReliableProducer.this.removeItemsUpto(deliveryTag);
} else {
ReliableProducer.this.removeItem(deliveryTag);
}
}
@Override
public void handleNack(long deliveryTag, boolean multiple) throws IOException {
if (multiple) {
ReliableProducer.this.requeueItemsUpto(deliveryTag);
} else {
ReliableProducer.this.requeueItem(deliveryTag);
}
}
});
}
@Override
protected void waitForConnection() throws InterruptedException {
super.waitForConnection();
try {
channel.basicConsume(
Constants.queue,
false,
new Consumer() {
@Override
public void handleCancel(String consumerTag) throws IOException {
System.out.println("got handleCancel signal");
}
@Override
public void handleCancelOk(String consumerTag) {
System.out.println("got handleCancelOk signal");
}
@Override
public void handleConsumeOk(String consumerTag) {
System.out.println("got handleConsumeOK signal");
}
@Override
public void handleDelivery(
String consumerTag, Envelope envelope, BasicProperties properties, byte[] body)
throws IOException {
long messageId = Long.parseLong(properties.getMessageId());
if (worker != null) {
// if the message is not a re-delivery, sure it is not a
// retransmission
if (!envelope.isRedeliver() || toBeWorked(messageId)) {
try {
worker.handle(new String(body));
// the message is ack'ed just after it has been
// secured (handled, stored in database...)
setAsWorked(messageId);
channel.basicAck(envelope.getDeliveryTag(), false);
} catch (WorkerException e) {
// the message worker has reported an exception,
// so the message
// can not be considered to be handled properly,
// so requeue it
channel.basicReject(envelope.getDeliveryTag(), true);
}
}
}
}
@Override
public void handleRecoverOk(String consumerTag) {
System.out.println("got recoverOK signal");
}
@Override
public void handleShutdownSignal(String consumerTag, ShutdownSignalException cause) {
System.out.println("got shutdown signal");
}
});
} catch (IOException e) {
e.printStackTrace();
}
}
