@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 Destination createTemporaryDestination() {
try {
AMQP.Queue.DeclareOk ok = channel.queueDeclare();
return new AMQPDestination(ok.getQueue(), channel, "", true);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
public static IPersistentMap mapFrom(AMQP.Queue.DeclareOk method) {
Map m = new HashMap();
m.put(RT.keyword(null, "queue"), method.getQueue());
m.put(RT.keyword(null, "message-count"), method.getMessageCount());
m.put(RT.keyword(null, "consumer-count"), method.getConsumerCount());
m.put(RT.keyword(null, "message_count"), method.getMessageCount());
m.put(RT.keyword(null, "consumer_count"), method.getConsumerCount());
return PersistentHashMap.create(m);
}
@Override
public void run() {
while (true) {
Channel ch = null;
try {
ch = RabbitConnection.getInstance().newChanel();
ch.basicQos(1);
AMQP.Queue.DeclareOk q = ch.queueDeclare();
ch.queueBind(q.getQueue(), "amq.direct", routingKey);
QueueingConsumer consumer = new QueueingConsumer(ch);
ch.basicConsume(q.getQueue(), true, consumer);
// Process deliveries
while (true) {
QueueingConsumer.Delivery delivery = consumer.nextDelivery();
String message = new String(delivery.getBody());
Message msg = handler.obtainMessage();
Bundle bundle = new Bundle();
bundle.putString("msg", message);
msg.setData(bundle);
handler.sendMessage(msg);
}
} catch (InterruptedException e) {
break;
} catch (Exception e1) {
try {
Thread.sleep(INTERVAL_RECOVERY); // sleep and then try again
} catch (InterruptedException e) {
break;
}
} finally {
RabbitConnection.getInstance().closeChanel(ch);
}
}
}
public AMQP.Queue.DeclareOk queueDeclare(
String queue,
boolean durable,
boolean exclusive,
boolean autoDelete,
Map<String, Object> arguments)
throws IOException {
final AMQP.Queue.DeclareOk ok =
delegate.queueDeclare(queue, durable, exclusive, autoDelete, arguments);
RecordedQueue q =
new RecordedQueue(this, ok.getQueue())
.durable(durable)
.exclusive(exclusive)
.autoDelete(autoDelete)
.arguments(arguments);
if (queue.equals(RecordedQueue.EMPTY_STRING)) {
q.serverNamed(true);
}
recordQueue(ok, q);
return ok;
}
public static void t2() throws Exception {
Channel channel = generateChannel();
AMQP.Queue.DeclareOk declareOk1 = channel.queueDeclare();
AMQP.Queue.DeclareOk declareOk2 = channel.queueDeclare();
AMQP.Queue.DeclareOk declareOk3 = channel.queueDeclare();
String exchange = "amq.rabbitmq.log";
channel.queueBind(declareOk1.getQueue(), exchange, "error");
channel.queueBind(declareOk2.getQueue(), exchange, "waring");
channel.queueBind(declareOk3.getQueue(), exchange, "info");
QueueingConsumer queueingConsumer = new QueueingConsumer(channel);
channel.basicConsume(declareOk1.getQueue(), false, queueingConsumer);
channel.basicConsume(declareOk2.getQueue(), false, queueingConsumer);
channel.basicConsume(declareOk3.getQueue(), false, queueingConsumer);
while (true) {
QueueingConsumer.Delivery delivery = queueingConsumer.nextDelivery();
System.out.println("log: " + new String(delivery.getBody()));
channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
}
}
public void run() {
try {
final Connection conn = MQ.createConnection();
final Channel channel = MQ.createChannel(conn);
BufferedReader stdin = new BufferedReader(new InputStreamReader(System.in));
System.out.println(String.format("Subscribbed to topic '%s'. Exit with ENTER", MONITOR_KEY));
// create a queue for this program
final AMQP.Queue.DeclareOk queue = channel.queueDeclare();
System.out.println("Create queue " + queue.getQueue());
// bind the queue to all routing keys that match MONITOR_KEY
channel.queueBind(queue.getQueue(), Config.EXCHANGE_NAME, MONITOR_KEY);
System.out.println(
String.format(
"Bound queue %s to all keys that match '%s' on exchange %s",
queue.getQueue(), MONITOR_KEY, Config.EXCHANGE_NAME));
boolean noAck = false;
// ask the server to notify us of new message and do not send ack message automatically
// WARNING: This code is called from the thread that does the communication with the
// server so sufficient locking is required. Also do not use any blocking calls to
// the server such as queueDeclare, txCommit, or basicCancel. Basicly only "basicAck"
// should be called here!!!
channel.basicConsume(
queue.getQueue(),
noAck,
new DefaultConsumer(channel) {
@Override
public void handleDelivery(
String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body)
throws IOException {
// get the delivery tag to ack that we processed the message successfully
long deliveryTag = envelope.getDeliveryTag();
// properties.getTimestamp() contains the timestamp
// that the sender added when the message was published. This
// time is the time on the sender and NOT the time on the
// AMQP server. This implies that clients are possibly out of
// sync!
System.out.println(
String.format(
"@%d: %s -> %s",
properties.getTimestamp().getTime(),
envelope.getRoutingKey(),
new String(body)));
mp.parse(envelope.getRoutingKey(), new String(body));
System.out.println(envelope.getRoutingKey());
System.out.println("bericht: " + new String(body));
// send an ack to the server so it can remove the message from
// the queue.
channel.basicAck(deliveryTag, false);
}
// private void parse(String routingKey, String body) {
// System.out.println(routingKey);
// if(!body.contains("start")){
// Robot robot_temp = controller.getRobotFromIdentifier(routingKey.split("_")[1]);
// if(robot_temp!=null)
// robot_temp.setPose(0.0, (int)Double.parseDouble(body.split("_")[0]),
// (int)Double.parseDouble(body.split("_")[1]));
// }
// }
});
// wait here until a newline is entered
stdin.readLine();
channel.close();
conn.close();
} catch (IOException e) {
e.printStackTrace(System.err);
}
}
public String getQueue() {
return method.getQueue();
}