@Test
public void sendAndReceiveTimeout() throws InterruptedException {
final CountDownLatch latch = new CountDownLatch(1);
this.template.setReceiveTimeout(1);
this.template.setThrowExceptionOnLateReply(true);
SubscribableChannel channel = new ExecutorSubscribableChannel(this.executor);
channel.subscribe(
new MessageHandler() {
@Override
public void handleMessage(Message<?> message) throws MessagingException {
try {
Thread.sleep(500);
MessageChannel replyChannel = (MessageChannel) message.getHeaders().getReplyChannel();
replyChannel.send(new GenericMessage<String>("response"));
fail("Expected exception");
} catch (InterruptedException e) {
fail("Unexpected exception " + e.getMessage());
} catch (MessageDeliveryException ex) {
assertEquals(
"Reply message received but the receiving thread has already received a reply",
ex.getMessage());
} finally {
latch.countDown();
}
}
});
assertNull(this.template.convertSendAndReceive(channel, "request", String.class));
assertTrue(latch.await(1000, TimeUnit.MILLISECONDS));
}
@Test
public void sendAndReceive() {
SubscribableChannel channel = new ExecutorSubscribableChannel(this.executor);
channel.subscribe(
new MessageHandler() {
@Override
public void handleMessage(Message<?> message) throws MessagingException {
MessageChannel replyChannel = (MessageChannel) message.getHeaders().getReplyChannel();
replyChannel.send(new GenericMessage<String>("response"));
}
});
String actual = this.template.convertSendAndReceive(channel, "request", String.class);
assertEquals("response", actual);
}
