This is an automated email from the ASF dual-hosted git repository.
duhengforever pushed a commit to branch develop
in repository https://gitbox.apache.org/repos/asf/rocketmq.git
The following commit(s) were added to refs/heads/develop by this push:
new 8fdfb42 [ISSUES #3048]add example of OnewayProducer and
ScheduledMessage (#3053)
8fdfb42 is described below
commit 8fdfb42ac8ceea24c7c1b6352df59ff8b585acbb
Author: zplovekq <[email protected]>
AuthorDate: Mon Jan 24 13:54:08 2022 +0800
[ISSUES #3048]add example of OnewayProducer and ScheduledMessage (#3053)
* fix the issue #2994
add the example for OnewayProducer and ScheduledMessageConsumer.
remove a unused line and add notes.
* rollback
* change code style
* modify the code style
Co-authored-by: zoupeinie <[email protected]>
---
.../example/schedule/ScheduledMessageConsumer.java | 51 ++++++++++++++++++++++
.../example/schedule/ScheduledMessageProducer.java | 41 +++++++++++++++++
.../rocketmq/example/simple/OnewayProducer.java | 45 +++++++++++++++++++
3 files changed, 137 insertions(+)
diff --git
a/example/src/main/java/org/apache/rocketmq/example/schedule/ScheduledMessageConsumer.java
b/example/src/main/java/org/apache/rocketmq/example/schedule/ScheduledMessageConsumer.java
new file mode 100644
index 0000000..fdb4c86
--- /dev/null
+++
b/example/src/main/java/org/apache/rocketmq/example/schedule/ScheduledMessageConsumer.java
@@ -0,0 +1,51 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * 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
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+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 void main(String[] args) throws Exception {
+ // Instantiate message consumer
+ DefaultMQPushConsumer consumer = new
DefaultMQPushConsumer("ExampleConsumer");
+ // Subscribe topics
+ consumer.subscribe("TestTopic", "*");
+ // 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;
+ }
+ });
+ // Launch consumer
+ consumer.start();
+ //info:to see the time effect, run the consumer first , it will wait
for the msg
+ //then start the producer
+ }
+}
\ No newline at end of file
diff --git
a/example/src/main/java/org/apache/rocketmq/example/schedule/ScheduledMessageProducer.java
b/example/src/main/java/org/apache/rocketmq/example/schedule/ScheduledMessageProducer.java
new file mode 100644
index 0000000..0f6b722
--- /dev/null
+++
b/example/src/main/java/org/apache/rocketmq/example/schedule/ScheduledMessageProducer.java
@@ -0,0 +1,41 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * 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
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.rocketmq.example.schedule;
+
+import org.apache.rocketmq.client.producer.DefaultMQProducer;
+import org.apache.rocketmq.common.message.Message;
+
+public class ScheduledMessageProducer {
+ public static void main(String[] args) throws Exception {
+ // Instantiate a producer to send scheduled messages
+ DefaultMQProducer producer = new
DefaultMQProducer("ExampleProducerGroup");
+ // Launch producer
+ producer.start();
+ int totalMessagesToSend = 100;
+ for (int i = 0; i < totalMessagesToSend; i++) {
+ Message message = new Message("TestTopic", ("Hello scheduled
message " + i).getBytes());
+ // This message will be delivered to consumer 10 seconds later.
+ message.setDelayTimeLevel(3);
+ // Send the message
+ producer.send(message);
+ }
+
+ // Shutdown producer after use.
+ producer.shutdown();
+ }
+
+}
\ No newline at end of file
diff --git
a/example/src/main/java/org/apache/rocketmq/example/simple/OnewayProducer.java
b/example/src/main/java/org/apache/rocketmq/example/simple/OnewayProducer.java
new file mode 100644
index 0000000..6932f66
--- /dev/null
+++
b/example/src/main/java/org/apache/rocketmq/example/simple/OnewayProducer.java
@@ -0,0 +1,45 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * 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
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.rocketmq.example.simple;
+
+import org.apache.rocketmq.client.producer.DefaultMQProducer;
+import org.apache.rocketmq.common.message.Message;
+import org.apache.rocketmq.remoting.common.RemotingHelper;
+
+public class OnewayProducer {
+ public static void main(String[] args) throws Exception {
+ //Instantiate with a producer group name.
+ DefaultMQProducer producer = new
DefaultMQProducer("please_rename_unique_group_name");
+ // Specify name server addresses.
+ producer.setNamesrvAddr("localhost:9876");
+ //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) /*
Message body */
+ );
+ //Call send message to deliver message to one of brokers.
+ producer.sendOneway(msg);
+ }
+ //Wait for sending to complete
+ Thread.sleep(5000);
+ producer.shutdown();
+ }
+}
\ No newline at end of file
