GH-8876: Use long for AmqpHeaders.DELAY header

Fixes: #8876

* Use respective new `MessageProperties` `getDelayLong()` & `setDelayLong()`

spring-integration-amqp/src/main/java/org/springframework/integration/amqp/outbound/AbstractAmqpOutboundEndpoint.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2016-2023 the original author or authors.
+ * Copyright 2016-2024 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -106,7 +106,7 @@ public abstract class AbstractAmqpOutboundEndpoint extends AbstractReplyProducin
 
 	private Expression delayExpression;
 
-	private ExpressionEvaluatingMessageProcessor<Integer> delayGenerator;
+	private ExpressionEvaluatingMessageProcessor<Long> delayGenerator;
 
 	private boolean headersMappedLast;
 
@@ -483,7 +483,7 @@ private void configureCorrelationDataGenerator(BeanFactory beanFactory) {
 
 	private void configureDelayGenerator(BeanFactory beanFactory) {
 		if (this.delayExpression != null) {
-			this.delayGenerator = new ExpressionEvaluatingMessageProcessor<>(this.delayExpression, Integer.class);
+			this.delayGenerator = new ExpressionEvaluatingMessageProcessor<>(this.delayExpression, Long.class);
 			if (beanFactory != null) {
 				this.delayGenerator.setBeanFactory(beanFactory);
 			}
@@ -622,7 +622,7 @@ protected String generateRoutingKey(Message<?> requestMessage) {
 
 	protected void addDelayProperty(Message<?> message, org.springframework.amqp.core.Message amqpMessage) {
 		if (this.delayGenerator != null) {
-			amqpMessage.getMessageProperties().setDelay(this.delayGenerator.processMessage(message));
+			amqpMessage.getMessageProperties().setDelayLong(this.delayGenerator.processMessage(message));
 		}
 	}
 

spring-integration-amqp/src/main/java/org/springframework/integration/amqp/support/DefaultAmqpHeaderMapper.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2022 the original author or authors.
+ * Copyright 2002-2024 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -133,7 +133,8 @@ protected Map<String, Object> extractStandardHeaders(MessageProperties amqpMessa
 			JavaUtils.INSTANCE
 					.acceptIfCondition(priority != null && priority > 0, IntegrationMessageHeaderAccessor.PRIORITY,
 							priority, headers::put)
-					.acceptIfNotNull(AmqpHeaders.RECEIVED_DELAY, amqpMessageProperties.getReceivedDelay(), headers::put)
+					.acceptIfNotNull(AmqpHeaders.RECEIVED_DELAY, amqpMessageProperties.getReceivedDelayLong(),
+							headers::put)
 					.acceptIfNotNull(AmqpHeaders.RECEIVED_EXCHANGE, amqpMessageProperties.getReceivedExchange(),
 							headers::put)
 					.acceptIfHasText(AmqpHeaders.RECEIVED_ROUTING_KEY, amqpMessageProperties.getReceivedRoutingKey(),
@@ -196,8 +197,8 @@ protected void populateStandardHeaders(@Nullable Map<String, Object> allHeaders,
 						amqpMessageProperties::setContentType)
 				.acceptIfHasText(getHeaderIfAvailable(headers, AmqpHeaders.CORRELATION_ID, String.class),
 						amqpMessageProperties::setCorrelationId)
-				.acceptIfNotNull(getHeaderIfAvailable(headers, AmqpHeaders.DELAY, Integer.class),
-						amqpMessageProperties::setDelay)
+				.acceptIfNotNull(getHeaderIfAvailable(headers, AmqpHeaders.DELAY, Long.class),
+						amqpMessageProperties::setDelayLong)
 				.acceptIfNotNull(getHeaderIfAvailable(headers, AmqpHeaders.DELIVERY_MODE, MessageDeliveryMode.class),
 						amqpMessageProperties::setDeliveryMode)
 				.acceptIfNotNull(getHeaderIfAvailable(headers, AmqpHeaders.DELIVERY_TAG, Long.class),

spring-integration-amqp/src/test/java/org/springframework/integration/amqp/outbound/OutboundEndpointTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2022 the original author or authors.
+ * Copyright 2002-2024 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -79,19 +79,19 @@ public void testDelayExpression() {
 		endpoint.handleMessage(new GenericMessage<>("foo"));
 		ArgumentCaptor<Message> captor = ArgumentCaptor.forClass(Message.class);
 		verify(amqpTemplate).send(eq("foo"), eq("bar"), captor.capture(), isNull());
-		assertThat(captor.getValue().getMessageProperties().getDelay()).isEqualTo(42);
+		assertThat(captor.getValue().getMessageProperties().getDelayLong()).isEqualTo(42);
 		endpoint.setExpectReply(true);
 		endpoint.setOutputChannel(new NullChannel());
 		endpoint.handleMessage(new GenericMessage<>("foo"));
 		verify(amqpTemplate).sendAndReceive(eq("foo"), eq("bar"), captor.capture(), isNull());
-		assertThat(captor.getValue().getMessageProperties().getDelay()).isEqualTo(42);
+		assertThat(captor.getValue().getMessageProperties().getDelayLong()).isEqualTo(42);
 
 		endpoint.setDelay(23);
 		endpoint.setRoutingKey("baz");
 		endpoint.afterPropertiesSet();
 		endpoint.handleMessage(new GenericMessage<>("foo"));
 		verify(amqpTemplate).sendAndReceive(eq("foo"), eq("baz"), captor.capture(), isNull());
-		assertThat(captor.getValue().getMessageProperties().getDelay()).isEqualTo(23);
+		assertThat(captor.getValue().getMessageProperties().getDelayLong()).isEqualTo(23);
 	}
 
 	@Test
@@ -114,7 +114,7 @@ public void testAsyncDelayExpression() {
 		ArgumentCaptor<Message> captor = ArgumentCaptor.forClass(Message.class);
 		gateway.handleMessage(new GenericMessage<>("foo"));
 		verify(amqpTemplate).sendAndReceive(eq("foo"), eq("bar"), captor.capture());
-		assertThat(captor.getValue().getMessageProperties().getDelay()).isEqualTo(42);
+		assertThat(captor.getValue().getMessageProperties().getDelayLong()).isEqualTo(42);
 	}
 
 	@Test

spring-integration-amqp/src/test/java/org/springframework/integration/amqp/support/DefaultAmqpHeaderMapperTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2022 the original author or authors.
+ * Copyright 2002-2024 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -77,7 +77,7 @@ public void fromHeaders() {
 		headerMap.put(AmqpHeaders.CONTENT_TYPE, "test.contentType");
 		String testCorrelationId = "foo";
 		headerMap.put(AmqpHeaders.CORRELATION_ID, testCorrelationId);
-		headerMap.put(AmqpHeaders.DELAY, 1234);
+		headerMap.put(AmqpHeaders.DELAY, 1234L);
 		headerMap.put(AmqpHeaders.DELIVERY_MODE, MessageDeliveryMode.NON_PERSISTENT);
 		headerMap.put(AmqpHeaders.DELIVERY_TAG, 1234L);
 		headerMap.put(AmqpHeaders.EXPIRATION, "test.expiration");
@@ -111,7 +111,7 @@ public void fromHeaders() {
 		assertThat(amqpProperties.getContentLength()).isEqualTo(99L);
 		assertThat(amqpProperties.getContentType()).isEqualTo("test.contentType");
 		assertThat(amqpProperties.getCorrelationId()).isEqualTo(testCorrelationId);
-		assertThat(amqpProperties.getDelay()).isEqualTo(Integer.valueOf(1234));
+		assertThat(amqpProperties.getDelayLong()).isEqualTo(1234L);
 		assertThat(amqpProperties.getDeliveryMode()).isEqualTo(MessageDeliveryMode.NON_PERSISTENT);
 		assertThat(amqpProperties.getDeliveryTag()).isEqualTo(1234L);
 		assertThat(amqpProperties.getExpiration()).isEqualTo("test.expiration");
@@ -183,7 +183,7 @@ public void toHeaders() {
 		amqpProperties.setMessageCount(42);
 		amqpProperties.setMessageId("test.messageId");
 		amqpProperties.setPriority(22);
-		amqpProperties.setReceivedDelay(4567);
+		amqpProperties.setReceivedDelayLong(4567L);
 		amqpProperties.setReceivedExchange("test.receivedExchange");
 		amqpProperties.setReceivedRoutingKey("test.receivedRoutingKey");
 		amqpProperties.setRedelivered(true);
@@ -206,7 +206,7 @@ public void toHeaders() {
 		assertThat(headerMap.get(AmqpHeaders.EXPIRATION)).isEqualTo("test.expiration");
 		assertThat(headerMap.get(AmqpHeaders.MESSAGE_COUNT)).isEqualTo(42);
 		assertThat(headerMap.get(AmqpHeaders.MESSAGE_ID)).isEqualTo("test.messageId");
-		assertThat(headerMap.get(AmqpHeaders.RECEIVED_DELAY)).isEqualTo(4567);
+		assertThat(headerMap.get(AmqpHeaders.RECEIVED_DELAY)).isEqualTo(4567L);
 		assertThat(headerMap.get(AmqpHeaders.RECEIVED_EXCHANGE)).isEqualTo("test.receivedExchange");
 		assertThat(headerMap.get(AmqpHeaders.RECEIVED_ROUTING_KEY)).isEqualTo("test.receivedRoutingKey");
 		assertThat(headerMap.get(AmqpHeaders.REPLY_TO)).isEqualTo("test.replyTo");