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add Tests
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dezhiliu committed Apr 5, 2020
1 parent f2ccfd7 commit 045771b
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/**
* 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.pulsar.client.api;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;

import java.util.concurrent.TimeUnit;

import static org.testng.Assert.assertNull;
import static org.testng.Assert.assertNotNull;

public class RetryTopicTest extends ProducerConsumerBase {

private static final Logger log = LoggerFactory.getLogger(RetryTopicTest.class);

@BeforeMethod
@Override
protected void setup() throws Exception {
super.internalSetup();
super.producerBaseSetup();
}

@AfterMethod
@Override
protected void cleanup() throws Exception {
super.internalCleanup();
}

@Test
public void testRetryTopic() throws Exception {
final String topic = "persistent://my-property/my-ns/retry-topic";

final int maxRedeliveryCount = 2;

final int sendMessages = 100;

Consumer<byte[]> consumer = pulsarClient.newConsumer(Schema.BYTES)
.topic(topic)
.subscriptionName("my-subscription")
.subscriptionType(SubscriptionType.Shared)
.enableRetry(true)
.deadLetterPolicy(DeadLetterPolicy.builder().maxRedeliverCount(maxRedeliveryCount).build())
.receiverQueueSize(100)
.subscriptionInitialPosition(SubscriptionInitialPosition.Earliest)
.subscribe();

PulsarClient newPulsarClient = newPulsarClient(lookupUrl.toString(), 0);// Creates new client connection
Consumer<byte[]> deadLetterConsumer = newPulsarClient.newConsumer(Schema.BYTES)
.topic("persistent://my-property/my-ns/my-subscription-DLQ")
.subscriptionName("my-subscription")
.subscriptionInitialPosition(SubscriptionInitialPosition.Earliest)
.subscribe();

Producer<byte[]> producer = pulsarClient.newProducer(Schema.BYTES)
.topic(topic)
.create();

for (int i = 0; i < sendMessages; i++) {
producer.send(String.format("Hello Pulsar [%d]", i).getBytes());
}

producer.close();

int totalReceived = 0;
do {
Message<byte[]> message = consumer.receive();
log.info("consumer received message : {} {}", message.getMessageId(), new String(message.getData()));
consumer.reconsumeLater(message, 1 , TimeUnit.SECONDS);
totalReceived++;
} while (totalReceived < sendMessages * (maxRedeliveryCount + 1));

int totalInDeadLetter = 0;
do {
Message message = deadLetterConsumer.receive();
log.info("dead letter consumer received message : {} {}", message.getMessageId(), new String(message.getData()));
deadLetterConsumer.acknowledge(message);
totalInDeadLetter++;
} while (totalInDeadLetter < sendMessages);

deadLetterConsumer.close();
consumer.close();

Consumer<byte[]> checkConsumer = this.pulsarClient.newConsumer(Schema.BYTES)
.topic(topic)
.subscriptionName("my-subscription")
.subscriptionType(SubscriptionType.Shared)
.subscriptionInitialPosition(SubscriptionInitialPosition.Earliest)
.subscribe();

Message<byte[]> checkMessage = checkConsumer.receive(3, TimeUnit.SECONDS);
if (checkMessage != null) {
log.info("check consumer received message : {} {}", checkMessage.getMessageId(), new String(checkMessage.getData()));
}
assertNull(checkMessage);

checkConsumer.close();
newPulsarClient.close();
}

/**
* The test is disabled {@link https://github.com/apache/pulsar/issues/2647}.
* @throws Exception
*/
@Test
public void testDeadLetterTopicWithMultiTopic() throws Exception {
final String topic1 = "persistent://my-property/my-ns/retry-topic-1";
final String topic2 = "persistent://my-property/my-ns/retry-topic-2";
final String topic3 = "persistent://my-property/my-ns/retry-topic-3";

final int maxRedeliveryCount = 2;

int sendMessages = 50;

// subscribe to the original topics before publish
Consumer<byte[]> consumer = pulsarClient.newConsumer(Schema.BYTES)
.topic(topic1, topic2, topic3)
.subscriptionName("my-subscription")
.subscriptionType(SubscriptionType.Shared)
.enableRetry(true)
.deadLetterPolicy(DeadLetterPolicy.builder().maxRedeliverCount(maxRedeliveryCount).build())
.receiverQueueSize(100)
.subscriptionInitialPosition(SubscriptionInitialPosition.Earliest)
.subscribe();

// subscribe to the DLQ topics before consuming original topics
Consumer<byte[]> deadLetterConsumer = pulsarClient.newConsumer(Schema.BYTES)
.topic("persistent://my-property/my-ns/my-subscription-DLQ")
.subscriptionName("my-subscription")
.subscriptionInitialPosition(SubscriptionInitialPosition.Earliest)
.subscribe();

Producer<byte[]> producer1 = pulsarClient.newProducer(Schema.BYTES)
.topic(topic1)
.create();

Producer<byte[]> producer2 = pulsarClient.newProducer(Schema.BYTES)
.topic(topic2)
.create();

Producer<byte[]> producer3 = pulsarClient.newProducer(Schema.BYTES)
.topic(topic3)
.create();
for (int i = 0; i < sendMessages; i++) {
producer1.send(String.format("Hello Pulsar [%d]", i).getBytes());
producer2.send(String.format("Hello Pulsar [%d]", i).getBytes());
producer3.send(String.format("Hello Pulsar [%d]", i).getBytes());
}

sendMessages = sendMessages * 3;

producer1.close();
producer2.close();

int totalReceived = 0;
do {
Message<byte[]> message = consumer.receive();
log.info("consumer received message : {} {} - total = {}",
message.getMessageId(), new String(message.getData()), ++totalReceived);
} while (totalReceived < sendMessages * (maxRedeliveryCount + 1));

int totalInDeadLetter = 0;
do {
Message message = deadLetterConsumer.receive();
log.info("dead letter consumer received message : {} {}", message.getMessageId(), new String(message.getData()));
deadLetterConsumer.acknowledge(message);
totalInDeadLetter++;
} while (totalInDeadLetter < sendMessages);

deadLetterConsumer.close();
consumer.close();

Consumer<byte[]> checkConsumer = pulsarClient.newConsumer(Schema.BYTES)
.topic(topic1, topic2, topic3)
.subscriptionName("my-subscription")
.subscriptionType(SubscriptionType.Shared)
.subscriptionInitialPosition(SubscriptionInitialPosition.Earliest)
.subscribe();

Message<byte[]> checkMessage = checkConsumer.receive(3, TimeUnit.SECONDS);
if (checkMessage != null) {
log.info("check consumer received message : {} {}", checkMessage.getMessageId(), new String(checkMessage.getData()));
}
assertNull(checkMessage);

checkConsumer.close();
}

@Test
public void testDeadLetterTopicByCustomTopicName() throws Exception {
final String topic = "persistent://my-property/my-ns/retry-topic";
final int maxRedeliveryCount = 2;
final int sendMessages = 100;

// subscribe before publish
Consumer<byte[]> consumer = pulsarClient.newConsumer(Schema.BYTES)
.topic(topic)
.subscriptionName("my-subscription")
.subscriptionType(SubscriptionType.Shared)
.enableRetry(true)
.receiverQueueSize(100)
.deadLetterPolicy(DeadLetterPolicy.builder()
.maxRedeliverCount(maxRedeliveryCount)
.retryLetterTopic("persistent://my-property/my-ns/my-subscription-custom-Retry")
.build())
.subscriptionInitialPosition(SubscriptionInitialPosition.Earliest)
.subscribe();
PulsarClient newPulsarClient = newPulsarClient(lookupUrl.toString(), 0);// Creates new client connection
Consumer<byte[]> deadLetterConsumer = newPulsarClient.newConsumer(Schema.BYTES)
.topic("persistent://my-property/my-ns/my-subscription-DLQ")
.subscriptionName("my-subscription")
.subscribe();

Producer<byte[]> producer = pulsarClient.newProducer(Schema.BYTES)
.topic(topic)
.create();
for (int i = 0; i < sendMessages; i++) {
producer.send(String.format("Hello Pulsar [%d]", i).getBytes());
}
producer.close();

int totalReceived = 0;
do {
Message<byte[]> message = consumer.receive();
log.info("consumer received message : {} {}", message.getMessageId(), new String(message.getData()));
consumer.reconsumeLater(message, 1 , TimeUnit.SECONDS);
totalReceived++;
} while (totalReceived < sendMessages * (maxRedeliveryCount + 1));
int totalInDeadLetter = 0;
do {
Message message = deadLetterConsumer.receive();
log.info("dead letter consumer received message : {} {}", message.getMessageId(), new String(message.getData()));
deadLetterConsumer.acknowledge(message);
totalInDeadLetter++;
} while (totalInDeadLetter < sendMessages);
deadLetterConsumer.close();
consumer.close();
PulsarClient newPulsarClient1 = newPulsarClient(lookupUrl.toString(), 0);// Creates new client connection
Consumer<byte[]> checkConsumer = newPulsarClient1.newConsumer(Schema.BYTES)
.topic(topic)
.subscriptionName("my-subscription")
.subscriptionType(SubscriptionType.Shared)
.subscriptionInitialPosition(SubscriptionInitialPosition.Earliest)
.subscribe();
Message<byte[]> checkMessage = checkConsumer.receive(3, TimeUnit.SECONDS);
if (checkMessage != null) {
log.info("check consumer received message : {} {}", checkMessage.getMessageId(), new String(checkMessage.getData()));
}
assertNull(checkMessage);
newPulsarClient.close();
newPulsarClient1.close();
checkConsumer.close();
}

}
Original file line number Diff line number Diff line change
Expand Up @@ -270,14 +270,14 @@ protected ConsumerImpl(PulsarClientImpl client, String topic, ConsumerConfigurat
} else {
this.deadLetterPolicy = DeadLetterPolicy.builder()
.maxRedeliverCount(conf.getDeadLetterPolicy().getMaxRedeliverCount())
.deadLetterTopic(String.format("%s-%s" + RetryMessageUtil.RETRY_GROUP_TOPIC_SUFFIX, topic, subscription))
.deadLetterTopic(String.format("%s-%s" + RetryMessageUtil.DLQ_GROUP_TOPIC_SUFFIX, topic, subscription))
.build();
}

if (StringUtils.isNotBlank(conf.getDeadLetterPolicy().getRetryLetterTopic())) {
this.deadLetterPolicy.setRetryLetterTopic(conf.getDeadLetterPolicy().getRetryLetterTopic());
} else {
this.deadLetterPolicy.setRetryLetterTopic(String.format("%s-%s" + RetryMessageUtil.DLQ_GROUP_TOPIC_SUFFIX,
this.deadLetterPolicy.setRetryLetterTopic(String.format("%s-%s" + RetryMessageUtil.RETRY_GROUP_TOPIC_SUFFIX,
topic, subscription));
}

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