@Override
public String amqpRegister(User user) throws Exception {
try {
Channel rabbitMqChannel = rabbitMqConnection.createChannel();
// create or get user queue
AMQP.Queue.DeclareOk queue =
rabbitMqChannel.queueDeclare(
"USER_".concat(String.valueOf(user.hashCode())),
true, // durable
false, // exclusive
false, // auto delete
null // no arguments
);
Map<String, Object> bindParams = new HashMap<>();
bindParams.put(ARGUMENT_TO_ID, user.getId());
rabbitMqChannel.queueBind(queue.getQueue(), amqpExchange, "", bindParams);
channelListener.registerChannel(rabbitMqChannel, queue.getQueue(), false);
// add user channel to active channels
USER_CHANNEL.put(user, rabbitMqChannel);
return queue.getQueue();
} catch (Exception e) {
logger.info("### Couldn't create user queue .. -> {" + e.getMessage() + "}");
throw e;
}
}
@Override
public void amqpUnRegister(User user) throws Exception {
Channel channel = USER_CHANNEL.get(user);
if (channel != null) {
logger.info("###Unregistering user [" + user.getUsername() + "] ... ");
// delete queue
channel.queueDelete("USER_".concat(String.valueOf(user.hashCode())));
USER_CHANNEL.remove(user);
// close channel
channel.close();
}
logger.info("###Unregistering user [" + user.getUsername() + "] Success !");
}