Cannot find the constants (QUEUE_NAME/QUEUE_MESSAGE_COUNT/QUEUE_CONSUMER_COUNT) in RabbitTemplate

[XiPengyuan]

spring-amqp/src/reference/antora/modules/ROOT/pages/amqp/broker-configuration.adoc

Line 46 in cfdc239

The keys for the properties returned are available as constants in the `RabbitTemplate` (`QUEUE_NAME`,

The getQueueProperties() method returns some limited information about the queue (message count and consumer count). The keys for the properties returned are available as constants in the RabbitTemplate (QUEUE_NAME, QUEUE_MESSAGE_COUNT, and QUEUE_CONSUMER_COUNT).

But I couldn't find a definition for any of these constants in the RabbitTemplate source code. Is this RabbitTemplate or RabbitAdmin?

[artembilan]

See RabbitAdmin:

	/**
	 * Property key for the queue name in the {@link Properties} returned by
	 * {@link #getQueueProperties(String)}.
	 */
	public static final Object QUEUE_NAME = "QUEUE_NAME";

	/**
	 * Property key for the message count in the {@link Properties} returned by
	 * {@link #getQueueProperties(String)}.
	 */
	public static final Object QUEUE_MESSAGE_COUNT = "QUEUE_MESSAGE_COUNT";

	/**
	 * Property key for the consumer count in the {@link Properties} returned by
	 * {@link #getQueueProperties(String)}.
	 */
	public static final Object QUEUE_CONSUMER_COUNT = "QUEUE_CONSUMER_COUNT";

And they are used like:

	/**
	 * Returns 3 properties {@link #QUEUE_NAME}, {@link #QUEUE_MESSAGE_COUNT},
	 * {@link #QUEUE_CONSUMER_COUNT}, or null if the queue doesn't exist.
	 */
	@Override
	@ManagedOperation(description = "Get queue name, message count and consumer count")
	public @Nullable Properties getQueueProperties(final String queueName) {
		QueueInformation queueInfo = getQueueInfo(queueName);
		if (queueInfo != null) {
			Properties props = new Properties();
			props.put(QUEUE_NAME, queueInfo.getName());
			props.put(QUEUE_MESSAGE_COUNT, queueInfo.getMessageCount());
			props.put(QUEUE_CONSUMER_COUNT, queueInfo.getConsumerCount());
			return props;
		}
		else {
			return null;
		}
	}

I'm not sure why you talk about RabbitTemplate since this is a result exactly of the RabbitAdmin operation.

[XiPengyuan]

However, the official documentation only mentions RabbitTemplate, not RabbitAdmin.

Is this inconsistent with the actual code?

[artembilan]

That looks like a bug in documentation.
Please, consider to contribute the fix: https://github.com/spring-projects/spring-amqp/blob/main/CONTRIBUTING.adoc

[XiPengyuan]

PR: #2959