@Override
public TransactionCheckListener checkListener() {
if (this.defaultMQProducer instanceof TransactionMQProducer) {
TransactionMQProducer producer = (TransactionMQProducer) defaultMQProducer;
return producer.getTransactionCheckListener();
}
return null;
}
public void initTransactionEnv() {
TransactionMQProducer producer = (TransactionMQProducer) this.defaultMQProducer;
this.checkRequestQueue = new LinkedBlockingQueue<Runnable>(producer.getCheckRequestHoldMax());
this.checkExecutor =
new ThreadPoolExecutor( //
producer.getCheckThreadPoolMinSize(), //
producer.getCheckThreadPoolMaxSize(), //
1000 * 60, //
TimeUnit.MILLISECONDS, //
this.checkRequestQueue);
}
public static void main(String[] args) throws MQClientException, InterruptedException {
TransactionCheckListener transactionCheckListener = new TransactionCheckListenerImpl();
TransactionMQProducer producer = new TransactionMQProducer("please_rename_unique_group_name");
// 事务回查最小并发数
producer.setCheckThreadPoolMinSize(2);
// 事务回查最大并发数
producer.setCheckThreadPoolMaxSize(2);
// 队列数
producer.setCheckRequestHoldMax(2000);
producer.setNamesrvAddr("127.0.0.1:9876");
producer.setTransactionCheckListener(transactionCheckListener);
producer.start();
String[] tags = new String[] {"TagA", "TagB", "TagC", "TagD", "TagE"};
TransactionExecuterImpl tranExecuter = new TransactionExecuterImpl();
for (int i = 0; i < 100; i++) {
try {
Message msg =
new Message(
"TopicTest", tags[i % tags.length], "KEY" + i, ("Hello RocketMQ " + i).getBytes());
SendResult sendResult = producer.sendMessageInTransaction(msg, tranExecuter, null);
System.out.println(sendResult);
Thread.sleep(10);
} catch (MQClientException e) {
e.printStackTrace();
}
}
for (int i = 0; i < 100000; i++) {
Thread.sleep(1000);
}
producer.shutdown();
}