How to use

setDelay

method

in

org.springframework.amqp.core.MessageProperties

  public Message postProcessMessage(Message message) throws AmqpException {
    message.getMessageProperties().setDelay((int) delay);
    return message;
  }
});

protected void addDelayProperty(Message<?> message, org.springframework.amqp.core.Message amqpMessage) {
  if (this.delayGenerator != null) {
    amqpMessage.getMessageProperties().setDelay(this.delayGenerator.processMessage(message));
  }
}

amqpMessageProperties.setDelay(delay);

protected void addDelayProperty(Message<?> message, org.springframework.amqp.core.Message amqpMessage) {
  if (this.delayGenerator != null) {
    amqpMessage.getMessageProperties().setDelay(this.delayGenerator.processMessage(message));
  }
}

@Test
public void testDelayHeader() {
  MessageProperties properties = new MessageProperties();
  Integer delay = 100;
  properties.setDelay(delay);
  assertEquals(delay, properties.getHeaders().get(MessageProperties.X_DELAY));
  properties.setDelay(null);
  assertFalse(properties.getHeaders().containsKey(MessageProperties.X_DELAY));
}

@Override
public void send (String aRoutingKey, Object aMessage) {
 Assert.notNull(aRoutingKey,"routing key can't be null");
 amqpTemplate.convertAndSend(determineExchange(aRoutingKey),determineRoutingKey(aRoutingKey),aMessage, (m) -> {
  if(aMessage instanceof Retryable) {
   Retryable r = (Retryable) aMessage;
   m.getMessageProperties().setDelay((int)r.getRetryDelayMillis());
  }
  if(aMessage instanceof Prioritizable) {
   Prioritizable p = (Prioritizable) aMessage;
   m.getMessageProperties().setPriority(p.getPriority());
  }
  return m;
 });
}

amqpMessageProperties.setDelay(delay);

amqpMessageProperties.setDelay(delay);

template.setReceiveTimeout(10000);
template.convertAndSend(exchangeName, queue.getName(), "foo", message -> {
  message.getMessageProperties().setDelay(1000);
  return message;
});
MessageProperties properties = new MessageProperties();
properties.setDelay(500);
template.send(exchangeName, queue.getName(),
    MessageBuilder.withBody("foo".getBytes()).andProperties(properties).build());