org.apache.rocketmq.example.simple.AclClient Maven / Gradle / Ivy
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* 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,
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* See the License for the specific language governing permissions and
* limitations under the License.
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package org.apache.rocketmq.example.simple;
import java.nio.charset.StandardCharsets;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.apache.rocketmq.acl.common.AclClientRPCHook;
import org.apache.rocketmq.acl.common.SessionCredentials;
import org.apache.rocketmq.client.consumer.DefaultMQPullConsumer;
import org.apache.rocketmq.client.consumer.DefaultMQPushConsumer;
import org.apache.rocketmq.client.consumer.PullResult;
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.client.consumer.rebalance.AllocateMessageQueueAveragely;
import org.apache.rocketmq.client.exception.MQClientException;
import org.apache.rocketmq.client.producer.DefaultMQProducer;
import org.apache.rocketmq.client.producer.SendResult;
import org.apache.rocketmq.common.consumer.ConsumeFromWhere;
import org.apache.rocketmq.common.message.Message;
import org.apache.rocketmq.common.message.MessageExt;
import org.apache.rocketmq.common.message.MessageQueue;
import org.apache.rocketmq.remoting.RPCHook;
import org.apache.rocketmq.remoting.common.RemotingHelper;
public class AclClient {
private static final Map OFFSE_TABLE = new HashMap<>();
private static final String ACL_ACCESS_KEY = "RocketMQ";
private static final String ACL_SECRET_KEY = "1234567";
public static void main(String[] args) throws MQClientException, InterruptedException {
producer();
pushConsumer();
pullConsumer();
}
public static void producer() throws MQClientException {
DefaultMQProducer producer = new DefaultMQProducer("ProducerGroupName", getAclRPCHook());
producer.setNamesrvAddr("127.0.0.1:9876");
producer.start();
for (int i = 0; i < 128; i++)
try {
{
Message msg = new Message("TopicTest",
"TagA",
"OrderID188",
"Hello world".getBytes(RemotingHelper.DEFAULT_CHARSET));
SendResult sendResult = producer.send(msg);
System.out.printf("%s%n", sendResult);
}
} catch (Exception e) {
e.printStackTrace();
}
producer.shutdown();
}
public static void pushConsumer() throws MQClientException {
DefaultMQPushConsumer consumer = new DefaultMQPushConsumer("please_rename_unique_group_name_5", getAclRPCHook(), new AllocateMessageQueueAveragely());
consumer.setNamesrvAddr("127.0.0.1:9876");
consumer.subscribe("TopicTest", "*");
consumer.setConsumeFromWhere(ConsumeFromWhere.CONSUME_FROM_FIRST_OFFSET);
// Wrong time format 2017_0422_221800
consumer.setConsumeTimestamp("20180422221800");
consumer.registerMessageListener(new MessageListenerConcurrently() {
@Override
public ConsumeConcurrentlyStatus consumeMessage(List msgs, ConsumeConcurrentlyContext context) {
System.out.printf("%s Receive New Messages: %s %n", Thread.currentThread().getName(), msgs);
printBody(msgs);
return ConsumeConcurrentlyStatus.CONSUME_SUCCESS;
}
});
consumer.start();
System.out.printf("Consumer Started.%n");
}
public static void pullConsumer() throws MQClientException {
DefaultMQPullConsumer consumer = new DefaultMQPullConsumer("please_rename_unique_group_name_6", getAclRPCHook());
consumer.setNamesrvAddr("127.0.0.1:9876");
consumer.start();
Set mqs = consumer.fetchSubscribeMessageQueues("TopicTest");
for (MessageQueue mq : mqs) {
System.out.printf("Consume from the queue: %s%n", mq);
SINGLE_MQ:
while (true) {
try {
PullResult pullResult =
consumer.pullBlockIfNotFound(mq, null, getMessageQueueOffset(mq), 32);
System.out.printf("%s%n", pullResult);
putMessageQueueOffset(mq, pullResult.getNextBeginOffset());
printBody(pullResult);
switch (pullResult.getPullStatus()) {
case FOUND:
break;
case NO_MATCHED_MSG:
break;
case NO_NEW_MSG:
break SINGLE_MQ;
case OFFSET_ILLEGAL:
break;
default:
break;
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
consumer.shutdown();
}
private static void printBody(PullResult pullResult) {
printBody(pullResult.getMsgFoundList());
}
private static void printBody(List msg) {
if (msg == null || msg.size() == 0)
return;
for (MessageExt m : msg) {
if (m != null) {
System.out.printf("msgId : %s body : %s \n\r", m.getMsgId(), new String(m.getBody(), StandardCharsets.UTF_8));
}
}
}
private static long getMessageQueueOffset(MessageQueue mq) {
Long offset = OFFSE_TABLE.get(mq);
if (offset != null)
return offset;
return 0;
}
private static void putMessageQueueOffset(MessageQueue mq, long offset) {
OFFSE_TABLE.put(mq, offset);
}
static RPCHook getAclRPCHook() {
return new AclClientRPCHook(new SessionCredentials(ACL_ACCESS_KEY,ACL_SECRET_KEY));
}
}