How to use

ReceiveAndReplyCallback

in

org.springframework.amqp.core

@SuppressWarnings(UNCHECKED)
private <R, S> boolean sendReply(final ReceiveAndReplyCallback<R, S> callback,
    final ReplyToAddressCallback<S> replyToAddressCallback, Channel channel, Message receiveMessage)
        throws Exception { // NOSONAR TODO change to IOException in 2.2.
  Object receive = receiveMessage;
  if (!(ReceiveAndReplyMessageCallback.class.isAssignableFrom(callback.getClass()))) {
    receive = getRequiredMessageConverter().fromMessage(receiveMessage);
  }
  S reply;
  try {
    reply = callback.handle((R) receive);
  }
  catch (ClassCastException e) {
    StackTraceElement[] trace = e.getStackTrace();
    if (trace[0].getMethodName().equals("handle") && trace[1].getFileName().equals("RabbitTemplate.java")) {
      throw new IllegalArgumentException("ReceiveAndReplyCallback '" + callback
          + "' can't handle received object '" + receive + "'", e);
    }
    else {
      throw e;
    }
  }
  if (reply != null) {
    doSendReply(replyToAddressCallback, channel, receiveMessage, reply);
  }
  else if (isChannelLocallyTransacted(channel)) {
    channel.txCommit();
  }
  return true;
}

@SuppressWarnings(UNCHECKED)
private <R, S> boolean sendReply(final ReceiveAndReplyCallback<R, S> callback,
    final ReplyToAddressCallback<S> replyToAddressCallback, Channel channel, Message receiveMessage)
        throws Exception { // NOSONAR TODO change to IOException in 2.2.
  Object receive = receiveMessage;
  if (!(ReceiveAndReplyMessageCallback.class.isAssignableFrom(callback.getClass()))) {
    receive = getRequiredMessageConverter().fromMessage(receiveMessage);
  }
  S reply;
  try {
    reply = callback.handle((R) receive);
  }
  catch (ClassCastException e) {
    StackTraceElement[] trace = e.getStackTrace();
    if (trace[0].getMethodName().equals("handle") && trace[1].getFileName().equals("RabbitTemplate.java")) {
      throw new IllegalArgumentException("ReceiveAndReplyCallback '" + callback
          + "' can't handle received object '" + receive + "'", e);
    }
    else {
      throw e;
    }
  }
  if (reply != null) {
    doSendReply(replyToAddressCallback, channel, receiveMessage, reply);
  }
  else if (isChannelLocallyTransacted(channel)) {
    channel.txCommit();
  }
  return true;
}