How to use

setDeliveryMode

method

in

org.springframework.amqp.core.MessageProperties

/**
 * Check the delivery mode and update with the default if not already present.
 * @param requestMessage the request message.
 * @param messageProperties the mapped message properties.
 * @param defaultDeliveryMode the default delivery mode.
 */
public static void checkDeliveryMode(Message<?> requestMessage, MessageProperties messageProperties,
    @Nullable MessageDeliveryMode defaultDeliveryMode) {
  if (defaultDeliveryMode != null &&
      requestMessage.getHeaders().get(AmqpHeaders.DELIVERY_MODE) == null) {
    messageProperties.setDeliveryMode(defaultDeliveryMode);
  }
}

public MessageBuilderSupport<T> setDeliveryMode(MessageDeliveryMode deliveryMode) {
  this.properties.setDeliveryMode(deliveryMode);
  return this;
}

    MessageDeliveryMode.class);
if (deliveryMode != null) {
  amqpMessageProperties.setDeliveryMode(deliveryMode);

@Override
public MessageProperties toMessageProperties(AMQP.BasicProperties source, Envelope envelope,
    String charset) {
  MessageProperties properties = super.toMessageProperties(source, envelope, charset);
  properties.setDeliveryMode(null);
  return properties;
}

@Override
public MessageProperties toMessageProperties(AMQP.BasicProperties source, Envelope envelope,
    String charset) {
  MessageProperties properties = super.toMessageProperties(source, envelope, charset);
  properties.setDeliveryMode(null);
  return properties;
}

@Override
public MessageProperties toMessageProperties(AMQP.BasicProperties source, Envelope envelope,
    String charset) {
  MessageProperties properties = super.toMessageProperties(source, envelope, charset);
  properties.setDeliveryMode(null);
  return properties;
}

@Override
public MessageProperties toMessageProperties(AMQP.BasicProperties source, Envelope envelope,
    String charset) {
  MessageProperties properties = super.toMessageProperties(source, envelope, charset);
  properties.setDeliveryMode(null);
  return properties;
}

/**
 * Check the delivery mode and update with the default if not already present.
 * @param requestMessage the request message.
 * @param messageProperties the mapped message properties.
 * @param defaultDeliveryMode the default delivery mode.
 */
public static void checkDeliveryMode(Message<?> requestMessage, MessageProperties messageProperties,
    @Nullable MessageDeliveryMode defaultDeliveryMode) {
  if (defaultDeliveryMode != null &&
      requestMessage.getHeaders().get(AmqpHeaders.DELIVERY_MODE) == null) {
    messageProperties.setDeliveryMode(defaultDeliveryMode);
  }
}

  @Override
  public Message postProcessMessage(Message message) throws AmqpException {
    message.getMessageProperties().setMessageId(msgId);
    // 设置消息持久化
    message.getMessageProperties().setDeliveryMode(MessageDeliveryMode.PERSISTENT);
    return message;
  }
};

public MessageBuilderSupport<T> setDeliveryModeIfAbsentOrDefault(MessageDeliveryMode deliveryMode) {
  if (this.properties.getDeliveryMode() == null
      || this.properties.getDeliveryMode().equals(MessageProperties.DEFAULT_DELIVERY_MODE)) {
    this.properties.setDeliveryMode(deliveryMode);
  }
  return this;
}

  @Override
  public Message postProcessMessage(Message message) throws AmqpException {
    message.getMessageProperties().setExpiration(count + "");
    message.getMessageProperties().setDeliveryMode(
        MessageDeliveryMode.PERSISTENT);
    return message;
  }
});

messageProperties.setDeliveryMode(this.deliveryMode);

messageProperties.setDeliveryMode(this.deliveryMode);

  msg.getMessageProperties().setReplyTo(headerValueString);
} else if(DELIVERY_MODE.equals(headerKey)) {
  msg.getMessageProperties().setDeliveryMode(MessageDeliveryMode.fromInt(Integer.parseInt(headerValueString)));
} else if(TYPE.equals(headerKey)) {
  msg.getMessageProperties().setType(headerValueString);

protected Map<? extends String, ? extends Object> additionalHeaders(Message message, Throwable cause) {
  message.getMessageProperties().setDeliveryMode(message.getMessageProperties().getReceivedDeliveryMode());
  return null;
}

@Test
public void serialization() throws Exception {
  MessageProperties messageProperties = new MessageProperties();
  messageProperties.setDeliveryMode(MessageDeliveryMode.NON_PERSISTENT);
  messageProperties.setHeader("foo", "bar");
  messageProperties.setContentType("text/plain");
  Message message = new Message("baz".getBytes(), messageProperties);
  ByteArrayOutputStream baos = new ByteArrayOutputStream();
  ObjectOutputStream os = new ObjectOutputStream(baos);
  os.writeObject(message);
  os.close();
  ObjectInputStream is = new ObjectInputStream(new ByteArrayInputStream(baos.toByteArray()));
  Message out = (Message) is.readObject();
  assertEquals(new String(message.getBody()), new String(out.getBody()));
  assertEquals(message.toString(), out.toString());
}

  private void processMessageProperties(MessageProperties messageProperties) {
    messageProperties.setContentType(MessageProperties.CONTENT_TYPE_JSON);
    messageProperties.setContentEncoding("UTF-8");
    messageProperties.setDeliveryMode(MessageDeliveryMode.NON_PERSISTENT);
    messageProperties.setHeader(MessageHeaders.HOST, OSUtils.getHostName());
    messageProperties.setAppId(AppInfo.getApplicationName());
    if(this.messagePropertiesCallback != null) {
      this.messagePropertiesCallback.call(messageProperties);
    }
  }
}

@Test
public void testInboundDeliveryMode() {
  DefaultMessagePropertiesConverter converter = new DefaultMessagePropertiesConverter();
  MessageProperties props = new MessageProperties();
  String[] strings = new String[] { "1", "2" };
  props.getHeaders().put("strings", strings);
  props.getHeaders().put("objects", new Object[] { new Foo() });
  props.setDeliveryMode(MessageDeliveryMode.NON_PERSISTENT);
  BasicProperties bProps = converter.fromMessageProperties(props, "UTF-8");
  assertEquals(MessageDeliveryMode.toInt(MessageDeliveryMode.NON_PERSISTENT), bProps.getDeliveryMode().intValue());
  props = converter.toMessageProperties(bProps, null, "UTF-8");
  assertEquals(MessageDeliveryMode.NON_PERSISTENT, props.getReceivedDeliveryMode());
  assertArrayEquals(strings, (Object[]) props.getHeaders().get("strings"));
  assertEquals("[FooAsAString]", Arrays.asList((Object[]) props.getHeaders().get("objects")).toString());
  assertNull(props.getDeliveryMode());
}

@Test
public void setDeliveryModeIfNull() {
  this.message.getMessageProperties().setDeliveryMode(null);
  this.recoverer = new RepublishMessageRecoverer(amqpTemplate, "error");
  this.recoverer.setDeliveryMode(MessageDeliveryMode.NON_PERSISTENT);
  recoverer.recover(this.message, this.cause);
  assertEquals(MessageDeliveryMode.NON_PERSISTENT, this.message.getMessageProperties().getDeliveryMode());
}

@Test
public void shouldRemapDeliveryMode() {
  message.getMessageProperties().setDeliveryMode(null);
  message.getMessageProperties().setReceivedDeliveryMode(MessageDeliveryMode.PERSISTENT);
  recoverer = new RepublishMessageRecoverer(amqpTemplate, "error") {
    protected Map<? extends String, ? extends Object> additionalHeaders(Message message, Throwable cause) {
      message.getMessageProperties().setDeliveryMode(message.getMessageProperties().getReceivedDeliveryMode());
      return null;
    }
  };
  recoverer.recover(message, cause);
  assertEquals(MessageDeliveryMode.PERSISTENT, message.getMessageProperties().getDeliveryMode());
}