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app/src/main/java/org/astraea/app/homework/SendYourData.java
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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.astraea.app.homework; | ||
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import com.beust.jcommander.Parameter; | ||
import java.io.Closeable; | ||
import java.io.IOException; | ||
import java.nio.ByteBuffer; | ||
import java.time.Duration; | ||
import java.util.List; | ||
import java.util.Map; | ||
import java.util.Set; | ||
import java.util.concurrent.CompletableFuture; | ||
import java.util.concurrent.TimeUnit; | ||
import java.util.concurrent.atomic.AtomicLong; | ||
import java.util.stream.Collectors; | ||
import java.util.stream.IntStream; | ||
import org.apache.kafka.clients.producer.KafkaProducer; | ||
import org.apache.kafka.clients.producer.ProducerConfig; | ||
import org.apache.kafka.clients.producer.ProducerRecord; | ||
import org.apache.kafka.common.serialization.ByteArraySerializer; | ||
import org.apache.kafka.common.serialization.Serializer; | ||
import org.astraea.app.argument.DurationField; | ||
import org.astraea.app.argument.StringListField; | ||
import org.astraea.common.DataSize; | ||
import org.astraea.common.admin.Admin; | ||
import org.astraea.common.admin.TopicPartition; | ||
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public class SendYourData { | ||
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private static final int NUMBER_OF_PARTITIONS = 4; | ||
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public static void main(String[] args) throws IOException, InterruptedException { | ||
execute(Argument.parse(new Argument(), args)); | ||
} | ||
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public static void execute(final Argument param) throws IOException, InterruptedException { | ||
try (var admin = Admin.of(param.bootstrapServers())) { | ||
param.topics.forEach( | ||
t -> | ||
admin | ||
.creator() | ||
.topic(t) | ||
.numberOfReplicas((short) 1) | ||
.numberOfPartitions(NUMBER_OF_PARTITIONS) | ||
.run() | ||
.toCompletableFuture() | ||
.join()); | ||
admin.waitCluster( | ||
Set.copyOf(param.topics), | ||
clusterInfo -> clusterInfo.topicNames().containsAll(param.topics), | ||
Duration.ofSeconds(10), | ||
1); | ||
} | ||
var keys = IntStream.range(0, 1000).mapToObj(index -> new Key(index, index, index)).toList(); | ||
var max = Runtime.getRuntime().totalMemory(); | ||
var count = new AtomicLong(); | ||
try (var sender = new YourSender(param.bootstrapServers())) { | ||
var start = System.currentTimeMillis(); | ||
var fs = | ||
IntStream.range(0, 2) | ||
.mapToObj( | ||
__ -> | ||
CompletableFuture.runAsync( | ||
() -> { | ||
while (System.currentTimeMillis() - start | ||
<= param.duration.toMillis()) { | ||
var index = count.getAndIncrement(); | ||
sender.send(param.topics, keys.get((int) (index % keys.size()))); | ||
} | ||
})) | ||
.toList(); | ||
while (!fs.stream().allMatch(CompletableFuture::isDone)) { | ||
max = Math.max(max, Runtime.getRuntime().totalMemory()); | ||
TimeUnit.MILLISECONDS.sleep(300); | ||
} | ||
} | ||
try (var admin = Admin.of(param.bootstrapServers())) { | ||
var offsets = | ||
param.topics.stream() | ||
.collect( | ||
Collectors.toUnmodifiableMap( | ||
t -> t, | ||
t -> | ||
admin | ||
.latestOffsets( | ||
IntStream.range(0, NUMBER_OF_PARTITIONS) | ||
.mapToObj(i -> TopicPartition.of(t, i)) | ||
.collect(Collectors.toSet())) | ||
.toCompletableFuture() | ||
.join() | ||
.values() | ||
.stream() | ||
.mapToLong(i -> i) | ||
.sum())); | ||
System.out.println("memory=" + DataSize.Byte.of(max)); | ||
offsets.forEach((t, o) -> System.out.println(t + "=" + o)); | ||
} | ||
} | ||
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public record Key(long v0, long v1, long v2) {} | ||
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public static class YourSender implements Closeable { | ||
private final KafkaProducer<Key, byte[]> producer; | ||
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@Override | ||
public void close() throws IOException { | ||
producer.close(); | ||
} | ||
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public YourSender(String bootstrapServers) { | ||
Serializer<Key> serializer = | ||
(topic, key) -> { | ||
var buffer = ByteBuffer.allocate(Long.BYTES + Long.BYTES + Long.BYTES); | ||
buffer.putLong(key.v0); | ||
buffer.putLong(key.v1); | ||
buffer.putLong(key.v2); | ||
buffer.flip(); | ||
var bytes = new byte[buffer.remaining()]; | ||
buffer.get(bytes); | ||
return bytes; | ||
}; | ||
producer = | ||
new KafkaProducer<>( | ||
Map.of(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG, bootstrapServers), | ||
serializer, | ||
new ByteArraySerializer()); | ||
} | ||
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public void send(List<String> topic, Key key) { | ||
topic.forEach(t -> producer.send(new ProducerRecord<>(t, key, null))); | ||
} | ||
} | ||
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public static class Argument extends org.astraea.app.argument.Argument { | ||
@Parameter( | ||
names = {"--topics"}, | ||
description = "List<String>: topic names which you subscribed", | ||
validateWith = StringListField.class, | ||
listConverter = StringListField.class, | ||
required = true) | ||
List<String> topics; | ||
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@Parameter( | ||
names = {"--duration"}, | ||
description = "duration: the time to test", | ||
validateWith = DurationField.class) | ||
Duration duration = Duration.ofSeconds(20); | ||
} | ||
} |
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