public String recvFromMessagequeue() {
RabbitmqClientConf client = new RabbitmqClientConf();
Channel channel = client.getChannel();
try {
channel.queueDeclare(QUEUE_NAME, false, false, false, null);
} catch (IOException e) {
e.printStackTrace();
}
System.out.println(" [*] Waiting for messages, To exit press CTRL+C");
QueueingConsumer consumer = new QueueingConsumer(channel);
try {
channel.basicConsume(QUEUE_NAME, true, consumer);
} catch (IOException e) {
e.printStackTrace();
}
System.out.println("ready to receive");
QueueingConsumer.Delivery delivery = null;
try {
delivery = consumer.nextDelivery();
} catch (InterruptedException e) {
e.printStackTrace();
}
String message = new String(delivery.getBody());
System.out.println("[x] Received'" + message + "'");
return message;
}
public static void main(String[] args) throws IOException, InterruptedException {
ConnectionFactory factory = new ConnectionFactory();
factory.setHost("localhost");
Connection connection = factory.newConnection();
Channel channel = connection.createChannel();
boolean durable = true;
channel.queueDeclare(QUEUE_NAME, durable, false, false, null);
System.out.println("[*] waiting for messages.To exit press ctrl+z");
// 公平分发
// 告知RabbitMQ不要同时给一个工作者超过一个任务
// 1个工作者处理完成，发送确认之前不要给它分发一个新的消息
int prefetchcount = 1;
channel.basicQos(prefetchcount);
QueueingConsumer consumer = new QueueingConsumer(channel);
boolean autoAck = false;
channel.basicConsume(QUEUE_NAME, false, consumer);
while (true) {
QueueingConsumer.Delivery delivery = consumer.nextDelivery();
String message = new String(delivery.getBody());
System.out.println(" [x] Received '" + message + "'");
// 模拟工作
doWork(message);
System.out.println(" [x] Done");
// 发送确认消息
channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
}
}
public static void main(String[] argv)
throws java.io.IOException, java.lang.InterruptedException, TimeoutException {
// 创建连接和频道
ConnectionFactory factory = new ConnectionFactory();
factory.setHost("localhost");
Connection connection = factory.newConnection();
Channel channel = connection.createChannel();
// 声明direct类型转发器
channel.exchangeDeclare(EXCHANGE_NAME, "direct");
String queueName = channel.queueDeclare().getQueue();
String severity = getSeverity();
// 指定binding_key
channel.queueBind(queueName, EXCHANGE_NAME, severity);
System.out.println(" [*] Waiting for " + severity + " logs. To exit press CTRL+C");
QueueingConsumer consumer = new QueueingConsumer(channel);
channel.basicConsume(queueName, true, consumer);
while (true) {
QueueingConsumer.Delivery delivery = consumer.nextDelivery();
String message = new String(delivery.getBody());
System.out.println(" [x] Received '" + message + "'");
}
}
public void receiveMessage(String qName) {
try {
CachingConnectionFactory factory = new CachingConnectionFactory();
factory.setAddresses("10.30.135.103:5672,10.30.135.101:5672");
org.springframework.amqp.rabbit.connection.Connection connection = factory.createConnection();
Channel channel = connection.createChannel(false);
// channel.exchangeDeclare(EXCHANGE_NAME, "fanout");
// ring queueName = channel.queueDeclare().getQueue();
// channel.queueBind(queueName, EXCHANGE_NAME, "");
System.out.println(" [*] Waiting for messages. To exit press CTRL+C");
QueueingConsumer consumer = new QueueingConsumer(channel);
channel.basicConsume(qName, true, consumer);
while (true) {
QueueingConsumer.Delivery delivery = consumer.nextDelivery();
String message = new String(delivery.getBody());
System.out.println(" [x] Received '" + message + "'");
}
} catch (Exception e) {
e.printStackTrace();
}
}
@Test
public void testBasicConnectivity() {
String sentMsg = "sent";
String recvdMsg = "received";
try {
channel.queueDeclare(basicTestQueue, false, false, false, null);
sentMsg = "testBasicConnectivity";
channel.basicPublish("", basicTestQueue, null, sentMsg.getBytes());
QueueingConsumer consumer = new QueueingConsumer(channel);
channel.basicConsume(basicTestQueue, true, consumer);
QueueingConsumer.Delivery delivery = consumer.nextDelivery(1500);
if (delivery != null) {
recvdMsg = new String(delivery.getBody());
}
} catch (Exception ex) {
fail("Connectivity error to MQ while running Test" + ex);
} finally {
try {
channel.close();
connection.close();
} catch (Exception ex) {
fail("Connectivity error to MQ while running Test" + ex);
}
}
assertEquals(sentMsg, recvdMsg);
}
public static void main(String[] arg) throws IOException, InterruptedException {
ConnectionFactory factory = new ConnectionFactory();
factory.setHost("localhost");
Connection connection = factory.newConnection();
Channel channel = connection.createChannel();
channel.exchangeDeclare(EXCHANGE_NAME, "direct");
String queueName = channel.queueDeclare().getQueue();
if (arg.length < 1) {
System.err.println("Usage: ReceiveLogsDirect [info] [warning] [error]");
System.exit(1);
}
for (String severity : arg) {
channel.queueBind(queueName, EXCHANGE_NAME, severity);
}
System.out.println(" [*] Waiting for messages. To exit press CTRL+C");
QueueingConsumer consumer = new QueueingConsumer(channel);
channel.basicConsume(queueName, true, consumer);
while (true) {
QueueingConsumer.Delivery delivery = consumer.nextDelivery();
String message = new String(delivery.getBody());
String routingKey = delivery.getEnvelope().getRoutingKey();
System.out.println(" [x] Received '" + routingKey + "':'" + message + "'");
}
}
public static void main(String[] args) throws Exception {
// 获取到连接以及mq通道
Connection connection = ConnectionUtil.getConnection();
Channel channel = connection.createChannel();
// 声明队列
channel.queueDeclare(QUEUE_NAME, false, false, false, null);
// 绑定队列到交换机
channel.queueBind(QUEUE_NAME, EXCHANGE_NAME, "#.#");
// 同一时刻服务器只会发一条消息给消费者
channel.basicQos(1);
// 定义队列的消费者
QueueingConsumer consumer = new QueueingConsumer(channel);
// 监听队列，手动返回完成
channel.basicConsume(QUEUE_NAME, false, consumer);
// 获取消息
while (true) {
QueueingConsumer.Delivery delivery = consumer.nextDelivery();
String message = new String(delivery.getBody());
System.out.println(" [x] Received '" + message + "'");
Thread.sleep(10);
channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
}
}
/** Test that an AMQP client can connect to and use the broker. */
@Test(groups = {"Integration", "WIP"})
public void testClientConnection() throws Exception {
rabbit = app.createAndManageChild(EntitySpec.create(RabbitBroker.class));
rabbit.start(ImmutableList.of(testLocation));
EntityTestUtils.assertAttributeEqualsEventually(rabbit, Startable.SERVICE_UP, true);
byte[] content = "MessageBody".getBytes(Charsets.UTF_8);
String queue = "queueName";
Channel producer = null;
Channel consumer = null;
try {
producer = getAmqpChannel(rabbit);
consumer = getAmqpChannel(rabbit);
producer.queueDeclare(queue, true, false, false, ImmutableMap.<String, Object>of());
producer.queueBind(queue, AmqpExchange.DIRECT, queue);
producer.basicPublish(AmqpExchange.DIRECT, queue, null, content);
QueueingConsumer queueConsumer = new QueueingConsumer(consumer);
consumer.basicConsume(queue, true, queueConsumer);
QueueingConsumer.Delivery delivery =
queueConsumer.nextDelivery(60 * 1000l); // one minute timeout
assertEquals(delivery.getBody(), content);
} finally {
closeSafely(producer, 10 * 1000);
closeSafely(consumer, 10 * 1000);
}
}
public static void main(String[] args) throws IOException, InterruptedException {
Random random = new Random();
int i = random.nextInt(10);
String clientName = "client-" + i;
Channel channel = RabbitUtil.getChannel();
// 申明交换器
channel.exchangeDeclare(C.FANOUT_EXCHANGE, "fanout");
// 匿名队列
String queueName = channel.queueDeclare().getQueue();
System.err.println("queueName:" + queueName);
// 绑定队列到交换器
AMQP.Queue.BindOk bindOk = channel.queueBind(queueName, C.FANOUT_EXCHANGE, "");
System.err.println("bindOk:" + bindOk);
System.out.println(clientName + " Waiting for messages. To exit press CTRL+C");
QueueingConsumer consumer = new QueueingConsumer(channel);
channel.basicConsume(queueName, true, consumer);
while (true) {
QueueingConsumer.Delivery delivery = consumer.nextDelivery();
String message = new String(delivery.getBody());
System.out.println(clientName + " Received :" + message + "");
Thread.sleep(1000);
}
}
public static void t1() throws Exception {
Channel channel = generateChannel();
// channel.exchangeDeclare(TestAmqp.ExchangerName, "direct", true, false, null);
// channel.exchangeDeclare(TestAmqp.FanoutExchangerName, "fanout", true, false, null);
channel.exchangeDeclare(TestAmqp.TopicExchangerName, "topic", false, false, null);
channel.queueDeclare(TestAmqp.TopicQueueName, false, false, false, null);
// channel.queueBind(TestAmqp.TopicQueueName, TestAmqp.TopicExchangerName,
// TestAmqp.RouteingName);
// channel.queueBind(TestAmqp.TopicQueueName, TestAmqp.TopicExchangerName, "*");
channel.queueBind(TestAmqp.TopicQueueName, TestAmqp.TopicExchangerName, "#.*");
// channel.basicPublish(TestAmqp.ExchangerName, TestAmqp.RouteingName, null, "haha".getBytes());
QueueingConsumer queueingConsumer = new QueueingConsumer(channel);
channel.basicQos(1);
channel.basicConsume(TestAmqp.TopicQueueName, queueingConsumer);
while (true) {
QueueingConsumer.Delivery delivery = queueingConsumer.nextDelivery();
System.out.println(new String(delivery.getBody()));
long deliveryTag = delivery.getEnvelope().getDeliveryTag();
System.out.println("start basicAck:" + deliveryTag);
// if (true)throw new RuntimeException("xxxxx");
channel.basicAck(deliveryTag, false);
}
// channel.close();
// connection.close();
}
/**
* 从指定队列接收消息，然后通过观察者对象处理
*
* @param queueName
* @param observer
* @throws Exception
*/
public void receive(String queueName, IObserver observer) throws Exception {
try {
this.init();
// 指定队列
channel.queueDeclare(queueName, true, false, false, null);
// 绑定队列到指定的交换机
// channel.queueBind(queueName, mqExchangeName, queueName);
// log.info("Bind queue {} to {} success! ", queueName, mqExchangeName);
QueueingConsumer consumer = new QueueingConsumer(channel);
channel.basicConsume(queueName, true, consumer);
while (true) {
// 阻塞，直到接收到一条消息
QueueingConsumer.Delivery delivery = consumer.nextDelivery();
String message = new String(delivery.getBody());
log.info("Received a message: " + message);
observer.update(message);
}
} finally {
this.destory();
}
}
@Override
protected String doInBackground(Object... params) {
Context = (Activity) params[1];
try {
ConnectionFactory factory = new ConnectionFactory();
factory.setHost("192.168.1.3");
Connection connection = factory.newConnection();
channel = connection.createChannel();
channel.queueDeclare("helloWorld", false, false, false, null);
System.out.println(" [*] Waiting for messages. To exit press CTRL+C");
QueueingConsumer consumer = new QueueingConsumer(channel);
channel.basicConsume("helloWorld", true, consumer);
while (!isCancelled()) {
try {
QueueingConsumer.Delivery delivery = consumer.nextDelivery(5000);
final String message = new String(delivery.getBody());
final ConsumeData data = new ConsumeData(message);
Context.runOnUiThread(
new Runnable() {
@Override
public void run() {
TextView mOutput = (TextView) Context.findViewById(R.id.output);
mOutput.setMovementMethod(new ScrollingMovementMethod());
for (String item : data.Messages) {
mOutput.setText(item + "\n" + mOutput.getText());
}
}
});
System.out.println(" [x] Received '" + message + "'");
} catch (Exception ex) {
}
}
} catch (Exception ex) {
}
return "";
}
private void consumeMessages() {
while (true) {
QueueingConsumer.Delivery delivery;
try {
delivery = consumer.nextDelivery();
final String message = new String(delivery.getBody());
runOnUiThread(
new Runnable() {
public void run() {
Toast.makeText(ReceiveActivity.this, message, Toast.LENGTH_LONG).show();
}
});
channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
} catch (ShutdownSignalException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (ConsumerCancelledException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (InterruptedException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
public void processFollowings() {
while (true) {
QueueingConsumer.Delivery delivery;
try {
delivery = consumer.nextDelivery();
String message = new String(delivery.getBody());
Long tag = delivery.getEnvelope().getDeliveryTag();
String[] split = message.split(" ");
Long followerVkId = Long.valueOf(split[0]);
Long followingVkId = Long.valueOf(split[1]);
Follower follower = dbService.getFollowerByVkId(followerVkId);
Following following = follower.getFollowingByVkId(followingVkId);
refreshFollowing(follower, following);
channel.basicAck(tag, false);
System.out.println("Ok");
} catch (InterruptedException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}
public static void main(String[] argv) {
Connection connection = null;
Channel channel = null;
try {
ConnectionFactory factory = new ConnectionFactory();
factory.setHost("localhost");
connection = factory.newConnection();
channel = connection.createChannel();
channel.exchangeDeclare(EXCHANGE_NAME, "topic");
String queueName = channel.queueDeclare().getQueue();
if (argv.length < 1) {
System.err.println("Usage: ReceiveLogsTopic [binding_key]...");
System.exit(1);
}
for (String bindingKey : argv) {
channel.queueBind(queueName, EXCHANGE_NAME, bindingKey);
}
System.out.println(" [*] Waiting for messages. To exit press CTRL+C");
QueueingConsumer consumer = new QueueingConsumer(channel);
channel.basicConsume(queueName, true, consumer);
while (true) {
QueueingConsumer.Delivery delivery = consumer.nextDelivery();
String message = new String(delivery.getBody());
String routingKey = delivery.getEnvelope().getRoutingKey();
System.out.println(" [x] Received '" + routingKey + "':'" + message + "'");
}
} catch (Exception e) {
e.printStackTrace();
} finally {
if (connection != null) {
try {
connection.close();
} catch (Exception ignore) {
}
}
}
}
/**
* Emits the next message from the queue as a tuple.
*
* <p>Serialization schemes returning null will immediately ack and then emit unanchored on the
* {@link #ERROR_STREAM_NAME} stream for further handling by the consumer.
*
* <p>If no message is ready to emit, this will wait a short time ({@link #WAIT_FOR_NEXT_MESSAGE})
* for one to arrive on the queue, to avoid a tight loop in the spout worker.
*/
@Override
public void nextTuple() {
if (spoutActive && amqpConsumer != null) {
try {
final QueueingConsumer.Delivery delivery = amqpConsumer.nextDelivery(WAIT_FOR_NEXT_MESSAGE);
if (delivery == null) return;
final long deliveryTag = delivery.getEnvelope().getDeliveryTag();
final byte[] message = delivery.getBody();
/////////////////// new rpc
BasicProperties props = delivery.getProperties();
BasicProperties replyProps =
new BasicProperties.Builder().correlationId(props.getCorrelationId()).build();
//////////////////////////////
List<Object> deserializedMessage = serialisationScheme.deserialize(message);
if (deserializedMessage != null && deserializedMessage.size() > 0) {
// let's see what's inside the Object List (checking)
/*System.out.println("Lenght of the list : "+ deserializedMessage.size() +"\n");
for (int i =0; i< deserializedMessage.size(); i++){
Object obj=deserializedMessage.get(i);
System.out.println("Object value: "+ obj + "\n" );
}*/
ArrayList li = new ArrayList();
li.add(deserializedMessage.get(0));
li.add(props);
li.add(replyProps);
deserializedMessage = li;
collector.emit(deserializedMessage, deliveryTag);
/////////// new for AMQPSpout RPC+JSON
try {
String response = "your name was: " + deserializedMessage.get(0) + " ";
this.amqpChannel.basicPublish(
"", props.getReplyTo(), replyProps, response.getBytes("UTF-8"));
// this.amqpChannel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
this.amqpChannel.basicAck(deliveryTag, false);
}
/// publishjson(props, replyProps, delivery.detEnvelope().getDeliveryTag());
// try{
// publishjson(props, replyProps);
// }
catch (IOException e) {
log.error("Error when publishing to the response queue", e);
}
////////////////
} else {
handleMalformedDelivery(deliveryTag, message);
}
} catch (ShutdownSignalException e) {
log.warn("AMQP connection dropped, will attempt to reconnect...");
Utils.sleep(WAIT_AFTER_SHUTDOWN_SIGNAL);
reconnect();
} catch (InterruptedException e) {
// interrupted while waiting for message, big deal
}
}
}
public static void main(String[] argv) throws java.io.IOException, InterruptedException {
ConnectionFactory factory = new ConnectionFactory();
factory.setHost("localhost");
Connection connection = factory.newConnection();
Channel channel = connection.createChannel();
channel.queueDeclare(QUEUE_NAME, false, false, false, null);
System.out.println(" [*] Waiting for messages. To exit press CTRL+C");
QueueingConsumer consumer = new QueueingConsumer(channel);
channel.basicConsume(QUEUE_NAME, true, consumer);
while (true) {
QueueingConsumer.Delivery delivery = consumer.nextDelivery();
String message = new String(delivery.getBody());
System.out.println(" [x] Received '" + message + "'");
}
}
public void run() throws IOException, InterruptedException {
final Connection connection = m_connFactory.newConnection();
final Channel channel = connection.createChannel();
try {
channel.exchangeDeclare(m_exchangeName, "topic", true);
String dataQueue = channel.queueDeclare().getQueue();
channel.queueBind(dataQueue, m_exchangeName, "EXPORT_PARTITIONED_TABLE.#");
channel.queueBind(dataQueue, m_exchangeName, "EXPORT_PARTITIONED_TABLE2.#");
channel.queueBind(dataQueue, m_exchangeName, "EXPORT_REPLICATED_TABLE.#");
channel.queueBind(dataQueue, m_exchangeName, "EXPORT_PARTITIONED_TABLE_FOO.#");
channel.queueBind(dataQueue, m_exchangeName, "EXPORT_PARTITIONED_TABLE2_FOO.#");
channel.queueBind(dataQueue, m_exchangeName, "EXPORT_REPLICATED_TABLE_FOO.#");
String doneQueue = channel.queueDeclare().getQueue();
channel.queueBind(doneQueue, m_exchangeName, "EXPORT_DONE_TABLE.#");
channel.queueBind(doneQueue, m_exchangeName, "EXPORT_DONE_TABLE_FOO.#");
// Setup callback for data stream
channel.basicConsume(dataQueue, false, createConsumer(channel));
// Setup callback for the done message
QueueingConsumer doneConsumer = new QueueingConsumer(channel);
channel.basicConsume(doneQueue, true, doneConsumer);
// Wait until the done message arrives, then verify count
final QueueingConsumer.Delivery doneMsg = doneConsumer.nextDelivery();
final long expectedRows =
Long.parseLong(
ExportOnServerVerifier.RoughCSVTokenizer.tokenize(
new String(doneMsg.getBody(), Charsets.UTF_8))[6]);
while (expectedRows > m_verifiedRows) {
Thread.sleep(1000);
System.err.println("Expected " + expectedRows + " " + m_verifiedRows);
}
} finally {
tearDown(channel);
channel.close();
connection.close();
}
}
public static void t3() throws Exception {
Channel channel = generateChannel();
channel.exchangeDeclare(TestAmqp.PingExchangerName, "direct", true, false, null);
channel.queueDeclare("rpc", false, false, false, null);
// channel.queueBind(TestAmqp.TopicQueueName, TestAmqp.TopicExchangerName,
// TestAmqp.RouteingName);
// channel.queueBind(TestAmqp.TopicQueueName, TestAmqp.TopicExchangerName, "*");
channel.queueBind("rpc", TestAmqp.PingExchangerName, "ping");
QueueingConsumer queueingConsumer = new QueueingConsumer(channel);
channel.basicConsume("rpc", false, queueingConsumer);
while (true) {
QueueingConsumer.Delivery delivery = queueingConsumer.nextDelivery();
System.out.println("log: " + new String(delivery.getBody()));
channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
System.out.println("reply to :" + delivery.getProperties().getReplyTo());
channel.basicPublish("", delivery.getProperties().getReplyTo(), null, "asfasdfas".getBytes());
}
}
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);
}
}
@Override
public void run() {
try {
Connection connection = factory.newConnection();
String uuid = UUID.randomUUID().toString();
String queueName = RPC_QUEUE_NAME + uuid;
Map<String, Channel> result =
this.server.initChannel(connection, this.assignedNumber, queueName);
Channel consumerChannel = result.get("consumer");
Channel publisherChannel = result.get("publisher");
QueueingConsumer consumer = new QueueingConsumer(consumerChannel);
consumerChannel.basicConsume(queueName, true, consumer);
System.out.println("in server ");
while (true) {
QueueingConsumer.Delivery delivery = consumer.nextDelivery();
// System.out.printf("delivery is %s, body is %s", delivery, new
// String(delivery.getBody()));
BasicProperties props = delivery.getProperties();
// System.out.printf("correlationId is %s", props.getCorrelationId());
BasicProperties replyProps =
new BasicProperties.Builder()
.correlationId(props.getCorrelationId())
.messageId(props.getMessageId())
.build();
String response = new String(delivery.getBody());
// System.out.printf("response is %s", new String(delivery.getBody()));
// System.out.printf("reply to is %s", props.getReplyTo() );
publisherChannel.basicPublish(
PUBLISHER_EXCHANGE_NAME, props.getReplyTo(), replyProps, response.getBytes());
// consumerChannel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
}
} catch (Exception e) {
e.printStackTrace();
}
}
@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 void run() {
System.out.println(" [x] Awaiting RPC requests");
while (run.get()) {
QueueingConsumer.Delivery delivery;
try {
delivery = consumer.nextDelivery(2000);
} catch (ShutdownSignalException e2) {
break;
} catch (ConsumerCancelledException e2) {
break;
} catch (InterruptedException e2) {
continue;
}
BasicProperties props = delivery.getProperties();
BasicProperties replyProps =
new BasicProperties.Builder().correlationId(props.getCorrelationId()).build();
try {
Object o;
synchronized (registry) {
o = Rmivm.deserialise(delivery.getBody(), registry);
}
byte[] outBytes = Rmivm.serialize(o);
synchronized (channel) {
channel.basicPublish("", props.getReplyTo(), replyProps, outBytes);
channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
}
} catch (Exception e) {
try {
synchronized (channel) {
channel.basicPublish(
"", props.getReplyTo(), replyProps, Rmivm.serialize(new Exception("Boom!")));
}
} catch (IOException e1) {
// panic
}
}
}
System.out.println(" [x] Shutting Down");
}
public void serveRequests() {
while (true) {
try {
Delivery delivery = consumer.nextDelivery();
BasicProperties props = delivery.getProperties();
channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
System.out.println("Received API call...replying...");
channel.basicPublish("", props.getReplyTo(), null, getResponse(delivery).getBytes("UTF-8"));
} catch (Exception e) {
System.out.println(e.toString());
}
}
}
@Override
public void run() {
while (isRunning) {
try {
QueueingConsumer.Delivery delivery = consumer.nextDelivery();
String body = new String(delivery.getBody(), "UTF-8");
Log.d("Aptoide-RabbitMqService", "MESSAGE: " + body);
handleMessage(body);
channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
} catch (InterruptedException e) {
e.printStackTrace();
} catch (IOException e) {
isRunning = false;
e.printStackTrace();
} catch (ShutdownSignalException e) {
isRunning = false;
try {
Log.d(
"Aptoide-WebInstall", "Connection closed with reason " + e.getReason().toString());
} catch (NullPointerException e1) {
e1.printStackTrace();
Log.d("Aptoide-WebInstall", "Connection closed with unkonwn reason");
}
} catch (ConsumerCancelledException e) {
isRunning = false;
Log.d("Aptoide-WebInstall", "Connection was canceled");
}
}
try {
if (channel != null && channel.isOpen()) {
channel.close();
connection.disconnectChannel(channel);
}
if (connection != null && connection.isOpen()) {
connection.close();
}
} catch (Exception e) {
e.printStackTrace();
}
}
public void nextTuple() {
if (amqpConsumer != null) {
try {
final QueueingConsumer.Delivery delivery = amqpConsumer.nextDelivery(WAIT_FOR_NEXT_MESSAGE);
if (delivery == null) return;
final long deliveryTag = delivery.getEnvelope().getDeliveryTag();
final byte[] message = delivery.getBody();
log.debug("Sending message:" + new String(message));
log.debug("Getting next tuple - " + (messageCount++));
if (messageCount < 0) {
log.debug("You just get a number of messages = max value of long! Wow! Reseting to 0");
this.messageCount = 0;
}
collector.emit(serialisationScheme.deserialize(message), deliveryTag);
} catch (InterruptedException e) {
// interrupted while waiting for message, big deal
}
}
}
public Message nextMessage() {
reinitIfNecessary();
if (consumerTag == null || consumer == null) return Message.NONE;
try {
return Message.forDelivery(consumer.nextDelivery(MS_WAIT_FOR_MESSAGE));
} catch (ShutdownSignalException sse) {
reset();
logger.error("shutdown signal received while attempting to get next message", sse);
reporter.reportError(sse);
return Message.NONE;
} catch (InterruptedException ie) {
/* nothing to do. timed out waiting for message */
logger.debug("interruepted while waiting for message", ie);
return Message.NONE;
} catch (ConsumerCancelledException cce) {
/* if the queue on the broker was deleted or node in the cluster containing the queue failed */
reset();
logger.error("consumer got cancelled while attempting to get next message", cce);
reporter.reportError(cce);
return Message.NONE;
}
}
/** {@inheritDoc} */
@Override
public SampleResult sample(Entry entry) {
SampleResult result = new SampleResult();
result.setSampleLabel(getName());
result.setSuccessful(false);
result.setResponseCode("500");
QueueingConsumer consumer;
String consumerTag;
trace("AMQPConsumer.sample()");
try {
initChannel();
consumer = new QueueingConsumer(channel);
channel.basicQos(1); // TODO: make prefetchCount configurable?
consumerTag = channel.basicConsume(getQueue(), autoAck(), consumer);
} catch (IOException ex) {
log.error("Failed to initialize channel", ex);
return result;
}
result.setSampleLabel(getTitle());
/*
* Perform the sampling
*/
result.sampleStart(); // Start timing
try {
QueueingConsumer.Delivery delivery = consumer.nextDelivery(getReceiveTimeoutAsInt());
if (delivery == null) {
log.warn("nextDelivery timed out");
return result;
}
/*
* Set up the sample result details
*/
result.setSamplerData(new String(delivery.getBody()));
result.setResponseData("OK", null);
result.setDataType(SampleResult.TEXT);
result.setResponseCodeOK();
result.setResponseMessage("OK");
result.setSuccessful(true);
if (!autoAck()) channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
} catch (ShutdownSignalException e) {
log.warn("AMQP consumer failed to consume", e);
result.setResponseCode("400");
result.setResponseMessage(e.toString());
interrupt();
} catch (ConsumerCancelledException e) {
log.warn("AMQP consumer failed to consume", e);
result.setResponseCode("300");
result.setResponseMessage(e.toString());
interrupt();
} catch (InterruptedException e) {
log.info("interuppted while attempting to consume");
result.setResponseCode("200");
result.setResponseMessage(e.toString());
} catch (IOException e) {
log.warn("AMQP consumer failed to consume", e);
result.setResponseCode("100");
result.setResponseMessage(e.toString());
} finally {
try {
channel.basicCancel(consumerTag);
} catch (IOException e) {
log.error("Couldn't safely cancel the sample's consumer", e);
}
}
result.sampleEnd(); // End timimg
trace("AMQPConsumer.sample ended");
return result;
}
@Override
public void run() {
while (true) {
if (closed) {
break;
}
try {
connection = connectionFactory.newConnection(rabbitAddresses);
channel = connection.createChannel();
} catch (Exception e) {
if (!closed) {
logger.warn("failed to created a connection / channel", e);
} else {
continue;
}
cleanup(0, "failed to connect");
try {
Thread.sleep(5000);
} catch (InterruptedException e1) {
// ignore, if we are closing, we will exit later
}
}
QueueingConsumer consumer = null;
// define the queue
try {
if (rabbitQueueDeclare) {
// only declare the queue if we should
channel.queueDeclare(
rabbitQueue /*queue*/,
rabbitQueueDurable /*durable*/,
false /*exclusive*/,
rabbitQueueAutoDelete /*autoDelete*/,
rabbitQueueArgs /*extra args*/);
}
if (rabbitExchangeDeclare) {
// only declare the exchange if we should
channel.exchangeDeclare(
rabbitExchange /*exchange*/, rabbitExchangeType /*type*/, rabbitExchangeDurable);
}
channel.basicQos(
rabbitQosPrefetchSize /*qos_prefetch_size*/,
rabbitQosPrefetchCount /*qos_prefetch_count*/,
false);
if (rabbitQueueBind) {
// only bind queue if we should
channel.queueBind(
rabbitQueue /*queue*/,
rabbitExchange /*exchange*/,
rabbitRoutingKey /*routingKey*/);
}
consumer = new QueueingConsumer(channel);
channel.basicConsume(rabbitQueue /*queue*/, false /*noAck*/, consumer);
} catch (Exception e) {
if (!closed) {
logger.warn("failed to create queue [{}]", e, rabbitQueue);
}
cleanup(0, "failed to create queue");
continue;
}
// now use the queue to listen for messages
while (true) {
if (closed) {
break;
}
QueueingConsumer.Delivery task;
try {
task = consumer.nextDelivery();
} catch (Exception e) {
if (!closed) {
logger.error("failed to get next message, reconnecting...", e);
}
cleanup(0, "failed to get message");
break;
}
if (task != null && task.getBody() != null) {
final List<Long> deliveryTags = Lists.newArrayList();
BulkRequestBuilder bulkRequestBuilder = client.prepareBulk();
try {
processBody(task, bulkRequestBuilder);
} catch (Exception e) {
logger.warn(
"failed to parse request for delivery tag [{}], ack'ing...",
e,
task.getEnvelope().getDeliveryTag());
try {
channel.basicAck(task.getEnvelope().getDeliveryTag(), false);
} catch (IOException e1) {
logger.warn("failed to ack [{}]", e1, task.getEnvelope().getDeliveryTag());
}
continue;
}
deliveryTags.add(task.getEnvelope().getDeliveryTag());
if (bulkRequestBuilder.numberOfActions() < bulkSize) {
// try and spin some more of those without timeout, so we have a bigger bulk (bounded
// by the bulk size)
try {
while ((task = consumer.nextDelivery(bulkTimeout.millis())) != null) {
try {
processBody(task, bulkRequestBuilder);
deliveryTags.add(task.getEnvelope().getDeliveryTag());
} catch (Throwable e) {
logger.warn(
"failed to parse request for delivery tag [{}], ack'ing...",
e,
task.getEnvelope().getDeliveryTag());
try {
channel.basicAck(task.getEnvelope().getDeliveryTag(), false);
} catch (Exception e1) {
logger.warn(
"failed to ack on failure [{}]", e1, task.getEnvelope().getDeliveryTag());
}
}
if (bulkRequestBuilder.numberOfActions() >= bulkSize) {
break;
}
}
} catch (InterruptedException e) {
if (closed) {
break;
}
} catch (ShutdownSignalException sse) {
logger.warn(
"Received a shutdown signal! initiatedByApplication: [{}], hard error: [{}]",
sse,
sse.isInitiatedByApplication(),
sse.isHardError());
if (!closed && sse.isInitiatedByApplication()) {
logger.error("failed to get next message, reconnecting...", sse);
}
cleanup(0, "failed to get message");
break;
}
}
if (logger.isTraceEnabled()) {
logger.trace(
"executing bulk with [{}] actions", bulkRequestBuilder.numberOfActions());
}
// if we have no bulk actions we might have processed custom commands, so ack them
if (ordered || bulkRequestBuilder.numberOfActions() == 0) {
try {
if (bulkRequestBuilder.numberOfActions() > 0) {
BulkResponse response = bulkRequestBuilder.execute().actionGet();
if (response.hasFailures()) {
// TODO write to exception queue?
logger.warn("failed to execute: " + response.buildFailureMessage());
}
}
} catch (Exception e) {
logger.warn("failed to execute bulk", e);
}
for (Long deliveryTag : deliveryTags) {
try {
channel.basicAck(deliveryTag, false);
} catch (Exception e1) {
logger.warn("failed to ack [{}]", e1, deliveryTag);
}
}
} else {
if (bulkRequestBuilder.numberOfActions() > 0) {
bulkRequestBuilder.execute(
new ActionListener<BulkResponse>() {
@Override
public void onResponse(BulkResponse response) {
if (response.hasFailures()) {
// TODO write to exception queue?
logger.warn("failed to execute: " + response.buildFailureMessage());
}
for (Long deliveryTag : deliveryTags) {
try {
channel.basicAck(deliveryTag, false);
} catch (Exception e1) {
logger.warn("failed to ack [{}]", e1, deliveryTag);
}
}
}
@Override
public void onFailure(Throwable e) {
logger.warn(
"failed to execute bulk for delivery tags [{}], not ack'ing",
e,
deliveryTags);
}
});
}
}
}
}
}
cleanup(0, "closing river");
}
protected void consumeNoDuplicates(QueueingConsumer consumer)
throws ShutdownSignalException, InterruptedException {
assertNotNull(consumer.nextDelivery(TIMEOUT));
Delivery markerDelivery = consumer.nextDelivery(TIMEOUT);
assertEquals(new String(MARKER), new String(markerDelivery.getBody()));
}