org.apache.rocketmq.example.openmessaging.SimplePushConsumer Maven / Gradle / Ivy
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* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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package org.apache.rocketmq.example.openmessaging;
import io.openmessaging.Message;
import io.openmessaging.MessagingAccessPoint;
import io.openmessaging.OMS;
import io.openmessaging.OMSBuiltinKeys;
import io.openmessaging.consumer.PushConsumer;
public class SimplePushConsumer {
public static final String URL = "oms:rocketmq://localhost:9876/default:default";
public static final String QUEUE = "OMS_HELLO_TOPIC";
public static void main(String[] args) {
// You need to set the environment variable OMS_RMQ_DIRECT_NAME_SRV=true
final MessagingAccessPoint messagingAccessPoint = OMS
.getMessagingAccessPoint(URL);
final PushConsumer consumer = messagingAccessPoint.
createPushConsumer(OMS.newKeyValue().put(OMSBuiltinKeys.CONSUMER_ID, "OMS_CONSUMER"));
messagingAccessPoint.startup();
System.out.printf("MessagingAccessPoint startup OK%n");
Runtime.getRuntime().addShutdownHook(new Thread(() -> {
consumer.shutdown();
messagingAccessPoint.shutdown();
}));
consumer.attachQueue(QUEUE, (message, context) -> {
System.out.printf("Received one message: %s%n", message.sysHeaders().getString(Message.BuiltinKeys.MESSAGE_ID));
context.ack();
});
consumer.startup();
System.out.printf("Consumer startup OK%n");
}
}