package de.juplo.kafka;
+import lombok.extern.slf4j.Slf4j;
import org.apache.kafka.clients.producer.ProducerRecord;
-import org.apache.kafka.common.serialization.LongSerializer;
import org.apache.kafka.common.serialization.StringSerializer;
import org.apache.kafka.common.utils.Bytes;
-import org.springframework.boot.test.context.TestConfiguration;
-import org.springframework.context.annotation.Bean;
-import org.springframework.test.context.ContextConfiguration;
+import org.springframework.beans.factory.annotation.Autowired;
+
+import java.util.*;
+
import java.util.function.Consumer;
+import java.util.stream.Collectors;
+import java.util.stream.IntStream;
+
+import static org.assertj.core.api.Assertions.assertThat;
-@ContextConfiguration(classes = ApplicationTests.Configuration.class)
-public class ApplicationTests extends GenericApplicationTests<String, Long>
+@Slf4j
+public class ApplicationTests extends GenericApplicationTests<String, String>
{
+ @Autowired
+ StateRepository stateRepository;
+
+
public ApplicationTests()
{
- super(
- new RecordGenerator()
+ super(new ApplicationTestRecrodGenerator());
- ((ApplicationTestRecrodGenerator)recordGenerator).tests = this;
++ ((ApplicationTestRecrodGenerator) recordGenerator).tests = this;
+ }
+
+
+ static class ApplicationTestRecrodGenerator implements RecordGenerator
+ {
+ ApplicationTests tests;
+
+ final int[] numbers = {1, 77, 33, 2, 66, 666, 11};
+ final String[] dieWilden13 =
- IntStream
- .range(1, 14)
- .mapToObj(i -> "seeräuber-" + i)
- .toArray(i -> new String[i]);
++ IntStream
++ .range(1, 14)
++ .mapToObj(i -> "seeräuber-" + i)
++ .toArray(i -> new String[i]);
+ final StringSerializer stringSerializer = new StringSerializer();
+ final Bytes calculateMessage = new Bytes(stringSerializer.serialize(TOPIC, "CALCULATE"));
+
+ int counter = 0;
+
+ Map<String, List<AdderResult>> state;
+
+ @Override
+ public int generate(
- boolean poisonPills,
- boolean logicErrors,
- Consumer<ProducerRecord<Bytes, Bytes>> messageSender)
++ boolean poisonPills,
++ boolean logicErrors,
++ Consumer<ProducerRecord<Bytes, Bytes>> messageSender)
+ {
+ counter = 0;
+ state =
- Arrays
- .stream(dieWilden13)
- .collect(Collectors.toMap(
- seeräuber -> seeräuber,
- seeräuber -> new LinkedList()));
-
- int number[] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 };
- int message[] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 };
++ Arrays
++ .stream(dieWilden13)
++ .collect(Collectors.toMap(
++ seeräuber -> seeräuber,
++ seeräuber -> new LinkedList()));
++
++ int number[] = {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1};
++ int message[] = {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1};
+ int next = 0;
+
+ for (int pass = 0; pass < 333; pass++)
+ {
- for (int i = 0; i<13; i++)
++ for (int i = 0; i < 13; i++)
{
- final StringSerializer stringSerializer = new StringSerializer();
- final LongSerializer longSerializer = new LongSerializer();
+ String seeräuber = dieWilden13[i];
+ Bytes key = new Bytes(stringSerializer.serialize(TOPIC, seeräuber));
+
+ if (message[i] > number[i])
+ {
+ send(key, calculateMessage, fail(logicErrors, pass, counter), messageSender);
+ state.get(seeräuber).add(new AdderResult(number[i], (number[i] + 1) * number[i] / 2));
+ // Pick next number to calculate
- number[i] = numbers[next++%numbers.length];
++ number[i] = numbers[next++ % numbers.length];
+ message[i] = 1;
+ log.debug("Seeräuber {} will die Summe für {} berechnen", seeräuber, number[i]);
+ }
+
+ Bytes value = new Bytes(stringSerializer.serialize(TOPIC, Integer.toString(message[i]++)));
+ send(key, value, fail(logicErrors, pass, counter), messageSender);
+ }
+ }
+
+ return counter;
+ }
- boolean fail (boolean logicErrors, int pass, int counter)
++ boolean fail(boolean logicErrors, int pass, int counter)
+ {
- return logicErrors && pass > 300 && counter%77 == 0;
++ return logicErrors && pass > 300 && counter % 77 == 0;
+ }
+
+ void send(
- Bytes key,
- Bytes value,
- boolean fail,
- Consumer<ProducerRecord<Bytes, Bytes>> messageSender)
++ Bytes key,
++ Bytes value,
++ boolean fail,
++ Consumer<ProducerRecord<Bytes, Bytes>> messageSender)
+ {
+ counter++;
+
+ if (fail)
+ {
+ value = new Bytes(stringSerializer.serialize(TOPIC, Integer.toString(-1)));
+ }
+
+ messageSender.accept(new ProducerRecord<>(TOPIC, key, value));
+ }
+
+ @Override
+ public boolean canGeneratePoisonPill()
+ {
+ return false;
+ }
- @Override
- public int generate(
- boolean poisonPills,
- boolean logicErrors,
- Consumer<ProducerRecord<Bytes, Bytes>> messageSender)
+ @Override
+ public void assertBusinessLogic()
+ {
- for (int i=0; i<PARTITIONS; i++)
++ for (int i = 0; i < PARTITIONS; i++)
+ {
+ StateDocument stateDocument =
- tests.stateRepository.findById(Integer.toString(i)).get();
++ tests.stateRepository.findById(Integer.toString(i)).get();
+
+ stateDocument
- .results
- .entrySet()
- .stream()
- .forEach(entry ->
- {
- String user = entry.getKey();
- List<AdderResult> resultsForUser = entry.getValue();
++ .results
++ .entrySet()
++ .stream()
++ .forEach(entry ->
+ {
- int i = 0;
++ String user = entry.getKey();
++ List<AdderResult> resultsForUser = entry.getValue();
- for (int j=0; j < resultsForUser.size(); j++)
- for (int partition = 0; partition < 10; partition++)
++ for (int j = 0; j < resultsForUser.size(); j++)
+ {
- for (int key = 0; key < 10000; key++)
++ if (!(j < state.get(user).size()))
{
- if (!(j < state.get(user).size()))
- i++;
-
- Bytes value = new Bytes(longSerializer.serialize(TOPIC, (long)i));
- if (i == 99977)
-- {
- break;
- if (logicErrors)
- {
- value = new Bytes(longSerializer.serialize(TOPIC, Long.MIN_VALUE));
- }
- if (poisonPills)
- {
- value = new Bytes(stringSerializer.serialize(TOPIC, "BOOM (Poison-Pill)!"));
- }
-- }
--
- assertThat(resultsForUser.get(j))
- .as("Unexpected results calculation %d of user %s", j, user)
- .isEqualTo(state.get(user).get(j));
- ProducerRecord<Bytes, Bytes> record =
- new ProducerRecord<>(
- TOPIC,
- partition,
- new Bytes(stringSerializer.serialize(TOPIC,Integer.toString(partition*10+key%2))),
- value);
-
- messageSender.accept(record);
++ break;
}
- }
-
- return i;
- }
- });
- }
- assertThat(state.get(user))
- .as("More results calculated for user %s as expected", user)
- .containsAll(resultsForUser);
- });
++ assertThat(resultsForUser.get(j))
++ .as("Unexpected results calculation %d of user %s", j, user)
++ .isEqualTo(state.get(user).get(j));
++ }
+
- @TestConfiguration
- public static class Configuration
- {
- @Bean
- public RecordHandler<String, Long> applicationRecordHandler()
- {
- return (record) ->
- {
- if (record.value() == Long.MIN_VALUE)
- throw new RuntimeException("BOOM (Logic-Error)!");
- };
++ assertThat(state.get(user))
++ .as("More results calculated for user %s as expected", user)
++ .containsAll(resultsForUser);
++ });
+ }
}
}
--}
++}
import org.apache.kafka.common.utils.Bytes;
import org.junit.jupiter.api.*;
import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
+import org.springframework.boot.autoconfigure.mongo.MongoProperties;
+import org.springframework.boot.test.autoconfigure.data.mongo.AutoConfigureDataMongo;
import org.springframework.boot.test.context.ConfigDataApplicationContextInitializer;
import org.springframework.boot.test.context.TestConfiguration;
+ import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Import;
import org.springframework.kafka.test.context.EmbeddedKafka;
import org.springframework.test.context.TestPropertySource;
@Autowired
Consumer<ConsumerRecord<K, V>> consumer;
@Autowired
- ApplicationProperties properties;
- @Autowired
- ExecutorService executor;
+ ApplicationProperties applicationProperties;
@Autowired
- RecordHandler<K, V> recordHandler;
+ MongoClient mongoClient;
+ @Autowired
+ MongoProperties mongoProperties;
+ @Autowired
+ RebalanceListener rebalanceListener;
+ @Autowired
+ TestRecordHandler<K, V> recordHandler;
+ @Autowired
+ EndlessConsumer<K, V> endlessConsumer;
-
KafkaProducer<Bytes, Bytes> testRecordProducer;
KafkaConsumer<Bytes, Bytes> offsetConsumer;
- EndlessConsumer<K, V> endlessConsumer;
Map<TopicPartition, Long> oldOffsets;
- Map<TopicPartition, Long> seenOffsets;
- Set<ConsumerRecord<K, V>> receivedRecords;
final RecordGenerator recordGenerator;
projects / demos / kafka / training / commitdiff