@Test
public void testPublisherReturnsWithMandatoryExpression() throws Exception {
final CountDownLatch latch = new CountDownLatch(1);
final List<Message> returns = new ArrayList<Message>();
templateWithReturnsEnabled.setReturnCallback(
new ReturnCallback() {
@Override
public void returnedMessage(
Message message,
int replyCode,
String replyText,
String exchange,
String routingKey) {
returns.add(message);
latch.countDown();
}
});
Expression mandatoryExpression =
new SpelExpressionParser().parseExpression("'message'.bytes == body");
templateWithReturnsEnabled.setMandatoryExpression(mandatoryExpression);
templateWithReturnsEnabled.convertAndSend(
ROUTE + "junk", (Object) "message", new CorrelationData("abc"));
templateWithReturnsEnabled.convertAndSend(
ROUTE + "junk", (Object) "foo", new CorrelationData("abc"));
assertTrue(latch.await(1000, TimeUnit.MILLISECONDS));
assertEquals(1, returns.size());
Message message = returns.get(0);
assertEquals("message", new String(message.getBody(), "utf-8"));
}
@SuppressWarnings("unchecked")
public <T> T fromMessage(Message message, T t) {
String json = "";
try {
json = new String(message.getBody(), defaultCharset);
} catch (Exception e) {
e.printStackTrace();
}
return (T) JSON.parseObject(json, t.getClass());
}
@Override
public Object fromMessage(Message message) throws MessageConversionException {
Object content = null;
MessageProperties properties = message.getMessageProperties();
if (properties != null) {
String contentType = properties.getContentType();
if (contentType != null && contentType.contains("protobuf")) {
try {
String classId = (String) message.getMessageProperties().getHeaders().get("__TypeId__");
if (classId == null) throw new Exception("no classId found");
Class<?> targetClass = Class.forName(classId);
content = converter.deserialize(message.getBody(), targetClass);
} catch (Exception e) {
throw new MessageConversionException("Failed to convert json-based Message content", e);
}
}
}
if (content == null) {
content = message.getBody();
}
return content;
}
@Override
public void onMessage(Message msg) {
String messageStr = new String(msg.getBody());
try {
logger.debug("Facility Manager Get Request Message: " + messageStr.toString());
// TODO ResponseMessage ret = this.man.executeCommand(
// ((ActionRequestMessage)engineMessage).getRequest() );
msg.getMessageProperties().getCorrelationId();
msg.getMessageProperties().getReplyTo();
// ret.setMessageID(engineMessage.getMessageID());
} catch (AmqpException e) {
e.printStackTrace();
}
}
@Test
public void testAutoBindDLQwithRepublish() throws Exception {
// pre-declare the queue with dead-lettering, users can also use a policy
RabbitAdmin admin = new RabbitAdmin(this.rabbitAvailableRule.getResource());
Map<String, Object> args = new HashMap<String, Object>();
args.put("x-dead-letter-exchange", "xdbustest.DLX");
Queue queue = new Queue("xdbustest.dlqpubtest", true, false, false, args);
admin.declareQueue(queue);
MessageBus bus = getMessageBus();
Properties properties = new Properties();
properties.put("prefix", "xdbustest.");
properties.put("autoBindDLQ", "true");
properties.put("republishToDLQ", "true");
properties.put("maxAttempts", "1"); // disable retry
properties.put("requeue", "false");
DirectChannel moduleInputChannel = new DirectChannel();
moduleInputChannel.setBeanName("dlqPubTest");
moduleInputChannel.subscribe(
new MessageHandler() {
@Override
public void handleMessage(Message<?> message) throws MessagingException {
throw new RuntimeException("foo");
}
});
bus.bindConsumer("dlqpubtest", moduleInputChannel, properties);
RabbitTemplate template = new RabbitTemplate(this.rabbitAvailableRule.getResource());
template.convertAndSend("", "xdbustest.dlqpubtest", "foo");
int n = 0;
while (n++ < 100) {
org.springframework.amqp.core.Message deadLetter =
template.receive("xdbustest.dlqpubtest.dlq");
if (deadLetter != null) {
assertEquals("foo", new String(deadLetter.getBody()));
assertNotNull(deadLetter.getMessageProperties().getHeaders().get("x-exception-stacktrace"));
break;
}
Thread.sleep(100);
}
assertTrue(n < 100);
bus.unbindConsumer("dlqpubtest", moduleInputChannel);
admin.deleteQueue("xdbustest.dlqpubtest.dlq");
admin.deleteQueue("xdbustest.dlqpubtest");
admin.deleteExchange("xdbustest.DLX");
}
@Override
public void onMessage(Message message, Channel channel) throws Exception {
String value = new String(message.getBody());
try {
int counter = count.getAndIncrement();
if (logger.isDebugEnabled() && counter % 100 == 0) {
logger.debug(value + counter);
}
if (fail) {
throw new RuntimeException("Planned failure");
}
} finally {
latch.countDown();
}
}
@Override
public Object fromMessage(Message message) throws MessageConversionException {
Object content = null;
try {
MessageProperties properties = message.getMessageProperties();
String encoding = properties.getContentEncoding();
if (encoding == null) {
encoding = this.defaultCharset;
}
content = new String(message.getBody(), encoding);
content = JSONObject.parse((String) content);
} catch (UnsupportedEncodingException e) {
throw new MessageConversionException("failed to convert text-based Message content", e);
}
return content;
}
@Override
public void onMessage(Message message, Channel channel) throws Exception {
String value = new String(message.getBody());
try {
logger.debug("Received: " + value);
if (count.get() == null) {
count.set(1);
} else {
count.set(count.get() + 1);
}
if (count.get() == txSize && fail) {
logger.debug("Failing: " + value);
count.set(0);
throw new RuntimeException("Planned");
}
} finally {
latch.countDown();
}
}
@Override
public Object fromMessage(Message message) throws MessageConversionException {
MessageProperties messageProperties = message.getMessageProperties();
if (messageProperties == null)
throw new MessageConversionException("Cannot decode a message with no properties!");
byte[] body = message.getBody();
if (body == null) return null;
String messageEncoding = messageProperties.getContentEncoding();
if (messageEncoding == null) messageEncoding = this.encoding;
String messageContentType = messageProperties.getContentType();
if (this.contentType != null && !this.contentType.equalsIgnoreCase(messageContentType))
throw new MessageConversionException(
"Cannot understand a message of type " + messageContentType);
try {
return new String(body, messageEncoding);
} catch (UnsupportedEncodingException ex) {
LOG.error("Cannot dencode strings as {}", this.encoding, ex);
throw new MessageConversionException("Cannot dencode strings as " + this.encoding, ex);
}
}
@Override
protected void executeListener(Channel channel, Message message) throws Throwable {
super.executeListener(channel, message);
channel.basicAck(message.getMessageProperties().getDeliveryTag(), false);
if (log.isDebugEnabled()) log.debug("Acknowledging message: " + new String(message.getBody()));
}
@Override
public void onMessage(Message message) {
System.out.println("接收到消息：" + new String(message.getBody()));
}
public Object fromMessage(Message message) throws MessageConversionException {
return JSON.parseObject(message.getBody(), DataSyncCipher.class);
}