HScarb commented on code in PR #4352:
URL: https://github.com/apache/rocketmq/pull/4352#discussion_r878979416
##########
example/src/main/java/org/apache/rocketmq/example/schedule/ScheduledMessageConsumer.java:
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@@ -17,31 +17,33 @@
package org.apache.rocketmq.example.schedule;
import org.apache.rocketmq.client.consumer.DefaultMQPushConsumer;
-import org.apache.rocketmq.client.consumer.listener.ConsumeConcurrentlyContext;
import org.apache.rocketmq.client.consumer.listener.ConsumeConcurrentlyStatus;
import
org.apache.rocketmq.client.consumer.listener.MessageListenerConcurrently;
import org.apache.rocketmq.common.message.MessageExt;
-import java.util.List;
-
public class ScheduledMessageConsumer {
-
+
+ public static final String CONSUMER_GROUP = "ExampleConsumer";
+ public static final String DEFAULT_NAMESRVADDR = "127.0.0.1:9876";
+ public static final String TOPIC = "TestTopic";
+
public static void main(String[] args) throws Exception {
// Instantiate message consumer
- DefaultMQPushConsumer consumer = new
DefaultMQPushConsumer("ExampleConsumer");
+ DefaultMQPushConsumer consumer = new
DefaultMQPushConsumer(CONSUMER_GROUP);
+
+ // If the debugging source code can open comments, you need to set the
namesrvAddr to the address of the local namesrvAddr
+// consumer.setNamesrvAddr(DEFAULT_NAMESRVADDR);
+
// Subscribe topics
- consumer.subscribe("TestTopic", "*");
+ consumer.subscribe(TOPIC, "*");
// Register message listener
- consumer.registerMessageListener(new MessageListenerConcurrently() {
- @Override
- public ConsumeConcurrentlyStatus consumeMessage(List<MessageExt>
messages, ConsumeConcurrentlyContext context) {
- for (MessageExt message : messages) {
- // Print approximate delay time period
- System.out.printf("Receive message[msgId=%s %d ms
later]\n", message.getMsgId(),
- System.currentTimeMillis() -
message.getStoreTimestamp());
- }
- return ConsumeConcurrentlyStatus.CONSUME_SUCCESS;
+ consumer.registerMessageListener((MessageListenerConcurrently)
(messages, context) -> {
Review Comment:
Think this code is suppose to compile under jdk 1.7, so lambda may not
supported
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