Examples with DefaultMQProducer org.apache.rocketmq.client.producer.DefaultMQProducer used on opensource projects

Example 31 with DefaultMQProducer

use of org.apache.rocketmq.client.producer.DefaultMQProducer in project spring-boot-starter-samples by vindell.

the class SimpleSyncProducer method main.

public static void main(String[] args) throws Exception {
    // Instantiate with a producer group name.
    DefaultMQProducer producer = new DefaultMQProducer("please_rename_unique_group_name");
    // Launch the instance.
    producer.start();
    for (int i = 0; i < 100; i++) {
        // Create a message instance, specifying topic, tag and message body.
        Message msg = new Message("TopicTest", /* Topic */
        "TagA", /* Tag */
        ("Hello RocketMQ " + i).getBytes(RemotingHelper.DEFAULT_CHARSET));
        // Call send message to deliver message to one of brokers.
        SendResult sendResult = producer.send(msg);
        System.out.printf("%s%n", sendResult);
    }
    // Shut down once the producer instance is not longer in use.
    producer.shutdown();
}

Example 32 with DefaultMQProducer

use of org.apache.rocketmq.client.producer.DefaultMQProducer in project spring-boot-starter-samples by vindell.

the class BatchProducer method main.

public static void main(String[] args) throws Exception {
    // Instantiate with a producer group name.
    DefaultMQProducer producer = new DefaultMQProducer("ExampleProducerGroup");
    producer.setRetryTimesWhenSendAsyncFailed(0);
    // Launch the instance.
    producer.start();
    String topic = "BatchTest";
    List<Message> messages = new ArrayList<Message>();
    messages.add(new Message(topic, "TagA", "OrderID001", "Hello world 0".getBytes()));
    messages.add(new Message(topic, "TagA", "OrderID002", "Hello world 1".getBytes()));
    messages.add(new Message(topic, "TagA", "OrderID003", "Hello world 2".getBytes()));
    try {
        producer.send(messages);
    } catch (Exception e) {
        e.printStackTrace();
    // handle the error
    }
    // then you could split the large list into small ones:
    ListSplitter splitter = new ListSplitter(messages);
    while (splitter.hasNext()) {
        try {
            List<Message> listItem = splitter.next();
            producer.send(listItem);
        } catch (Exception e) {
            e.printStackTrace();
        // handle the error
        }
    }
    // Shut down once the producer instance is not longer in use.
    producer.shutdown();
}

Example 33 with DefaultMQProducer

use of org.apache.rocketmq.client.producer.DefaultMQProducer in project rocketmq by apache.

the class ProducerInstance method getInstance.

public MQProducer getInstance(String nameServerAddress, String group) throws MQClientException {
    if (StringUtils.isBlank(group)) {
        group = DEFAULT_GROUP;
    }
    String genKey = genKey(nameServerAddress, group);
    MQProducer p = getProducerInstance().producerMap.get(genKey);
    if (p != null) {
        return p;
    }
    DefaultMQProducer defaultMQProducer = new DefaultMQProducer(group);
    defaultMQProducer.setNamesrvAddr(nameServerAddress);
    MQProducer beforeProducer = null;
    beforeProducer = getProducerInstance().producerMap.putIfAbsent(genKey, defaultMQProducer);
    if (beforeProducer != null) {
        return beforeProducer;
    }
    defaultMQProducer.start();
    return defaultMQProducer;
}

Example 34 with DefaultMQProducer

use of org.apache.rocketmq.client.producer.DefaultMQProducer in project rocketmq by apache.

the class MQClientAPIImplTest method testSendMessageAsync_Success.

@Test
public void testSendMessageAsync_Success() throws RemotingException, InterruptedException, MQBrokerException {
    doNothing().when(remotingClient).invokeAsync(anyString(), any(RemotingCommand.class), anyLong(), any(InvokeCallback.class));
    SendResult sendResult = mqClientAPI.sendMessage(brokerAddr, brokerName, msg, new SendMessageRequestHeader(), 3 * 1000, CommunicationMode.ASYNC, new SendMessageContext(), defaultMQProducerImpl);
    assertThat(sendResult).isNull();
    doAnswer(new Answer() {

        @Override
        public Object answer(InvocationOnMock mock) throws Throwable {
            InvokeCallback callback = mock.getArgument(3);
            RemotingCommand request = mock.getArgument(1);
            ResponseFuture responseFuture = new ResponseFuture(request.getOpaque(), 3 * 1000, null, null);
            responseFuture.setResponseCommand(createSuccessResponse(request));
            callback.operationComplete(responseFuture);
            return null;
        }
    }).when(remotingClient).invokeAsync(anyString(), any(RemotingCommand.class), anyLong(), any(InvokeCallback.class));
    SendMessageContext sendMessageContext = new SendMessageContext();
    sendMessageContext.setProducer(new DefaultMQProducerImpl(new DefaultMQProducer()));
    mqClientAPI.sendMessage(brokerAddr, brokerName, msg, new SendMessageRequestHeader(), 3 * 1000, CommunicationMode.ASYNC, new SendCallback() {

        @Override
        public void onSuccess(SendResult sendResult) {
            assertThat(sendResult.getSendStatus()).isEqualTo(SendStatus.SEND_OK);
            assertThat(sendResult.getOffsetMsgId()).isEqualTo("123");
            assertThat(sendResult.getQueueOffset()).isEqualTo(123L);
            assertThat(sendResult.getMessageQueue().getQueueId()).isEqualTo(1);
        }

        @Override
        public void onException(Throwable e) {
        }
    }, null, null, 0, sendMessageContext, defaultMQProducerImpl);
}

Example 35 with DefaultMQProducer

use of org.apache.rocketmq.client.producer.DefaultMQProducer in project rocketmq by apache.

the class ListSplitter method main.

public static void main(String[] args) throws Exception {
    DefaultMQProducer producer = new DefaultMQProducer("BatchProducerGroupName");
    producer.start();
    // large batch
    String topic = "BatchTest";
    List<Message> messages = new ArrayList<>(100 * 1000);
    for (int i = 0; i < 100 * 1000; i++) {
        messages.add(new Message(topic, "Tag", "OrderID" + i, ("Hello world " + i).getBytes()));
    }
    // split the large batch into small ones:
    ListSplitter splitter = new ListSplitter(messages);
    while (splitter.hasNext()) {
        List<Message> listItem = splitter.next();
        producer.send(listItem);
    }
}