Examples with DefaultMQPushConsumer org.apache.rocketmq.client.consumer.DefaultMQPushConsumer used on opensource projects

Example 11 with DefaultMQPushConsumer

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

the class OrderedConsumer method main.

public static void main(String[] args) throws Exception {
    DefaultMQPushConsumer consumer = new DefaultMQPushConsumer("example_group_name");
    consumer.setConsumeFromWhere(ConsumeFromWhere.CONSUME_FROM_FIRST_OFFSET);
    consumer.subscribe("TopicTest", "TagA || TagC || TagD");
    consumer.registerMessageListener(new MessageListenerOrderly() {

        AtomicLong consumeTimes = new AtomicLong(0);

        @Override
        public ConsumeOrderlyStatus consumeMessage(List<MessageExt> msgs, ConsumeOrderlyContext context) {
            context.setAutoCommit(false);
            System.out.printf(Thread.currentThread().getName() + " Receive New Messages: " + msgs + "%n");
            this.consumeTimes.incrementAndGet();
            if ((this.consumeTimes.get() % 2) == 0) {
                return ConsumeOrderlyStatus.SUCCESS;
            } else if ((this.consumeTimes.get() % 3) == 0) {
                return ConsumeOrderlyStatus.ROLLBACK;
            } else if ((this.consumeTimes.get() % 4) == 0) {
                return ConsumeOrderlyStatus.COMMIT;
            } else if ((this.consumeTimes.get() % 5) == 0) {
                context.setSuspendCurrentQueueTimeMillis(3000);
                return ConsumeOrderlyStatus.SUSPEND_CURRENT_QUEUE_A_MOMENT;
            }
            return ConsumeOrderlyStatus.SUCCESS;
        }
    });
    consumer.start();
    System.out.printf("Consumer Started.%n");
}