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install: /bin/true
script: ./mvnw verify -B
dist: trusty

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README.adoc Normal file
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= Kafka Health Check
:uri-build-status: https://travis-ci.org/deviceinsight/kafka-health-check
:img-build-status: https://api.travis-ci.org/deviceinsight/kafka-health-check.svg?branch=master
image:{img-build-status}[Build Status Badge,link={uri-build-status}]
This library provides a kafka health check for spring boot actuator.
== Usage
Add the following dependency to your `pom.xml`
[source,xml]
....
<dependency>
<groupId>com.deviceinsight.kafka</groupId>
<artifactId>kafka-health-check</artifactId>
<version>1.0.0</version>
</dependency>
....
In the same maven module you can configure the topic, poll timeouts, subscription timeouts and the receive timeouts
in the `application.yml`
An example for an `application.yaml` is:
[source,yaml]
....
kafka:
health:
topic: health-checks
sendReceiveTimeoutMs: 2500
pollTimeoutMs: 200
subscriptionTimeoutMs: 5000
....
The values shown are the defaults.
IMPORTANT: Make sure the configured health check topic exists!
[source,java]
....
@Bean
@ConfigurationProperties("kafka.health")
public KafkaHealthProperties kafkaHealthProperties() {
return new KafkaHealthProperties();
}
....
[source,java]
....
@Bean
public KafkaConsumingHealthIndicator kafkaConsumingHealthIndicator(KafkaHealthProperties kafkaProperties,
KafkaProperties processingProperties) {
return new KafkaConsumingHealthIndicator(kafkaHealthProperties, kafkaProperties.buildConsumerProperties(),
kafkaProperties.buildProducerProperties());
}
....
Now if you call the actuator endpoint `actuator/health` you should see the following output:
[source,json]
....
{
"status" : "UP",
"details" : {
"kafkaConsuming" : {
"status" : "UP"
}
}
}
....
== Configuration
|===
|Property |Default |Description
|kafka.health.topic |`health-checks` | Topic to subscribe to
|kafka.health.sendReceiveTimeoutMs |2500 | The maximum time, in milliseconds, to wait for sending and receiving the message
|kafka.health.pollTimeoutMs |200 | The time, in milliseconds, spent fetching the data from the topic
|kafka.health.subscriptionTimeoutMs |5000 | The maximum time, in milliseconds, to wait for subscribing to topic
|===
== Releasing
Creating a new release involves the following steps:
. `./mvnw gitflow:release-start gitflow:release-finish`
. `git push origin master`
. `git push --tags`
. `git push origin develop`
In order to deploy the release to Maven Central, you need to create an account at https://issues.sonatype.org and
configure your account in `~/.m2/settings.xml`:
[source,xml]
....
<settings>
<servers>
<server>
<id>ossrh</id>
<username>your-jira-id</username>
<password>your-jira-pwd</password>
</server>
</servers>
</settings>
....
The account also needs access to the project on Maven Central. This can be requested by another project member.
Then check out the release you want to deploy (`git checkout x.y.z`) and run `./mvnw deploy -Prelease`.

105
README.md
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# Kafka Health Check
> **Note.** _forked from [deviceinsight/kafka-health-check](https://github.com/deviceinsight/kafka-health-check) due to long period of inactivity_
This library provides a kafka health check for spring boot actuator.
## Usage
Add the following dependency to your `pom.xml`
```xml
<dependency>
<groupId>me.bvn13.kafka.health</groupId>
<artifactId>kafka-health-check</artifactId>
<version>1.5.5</version>
</dependency>
```
In the same maven module you can configure the topic, poll timeouts and the reception timeouts
in the `application.yaml`
An example for an `application.yaml` is:
```yaml
kafka:
health:
topic: health-checks
sendReceiveTimeout: 2.5s
pollTimeout: 200ms
```
The values shown are the defaults.
IMPORTANT: Make sure the configured health check topic exists!
```java
@Bean
@ConfigurationProperties("kafka.health")
public KafkaHealthProperties kafkaHealthProperties() {
return new KafkaHealthProperties();
}
```
```java
@Bean
public KafkaConsumingHealthIndicator kafkaConsumingHealthIndicator(KafkaHealthProperties kafkaProperties,
KafkaProperties processingProperties) {
return new KafkaConsumingHealthIndicator(kafkaHealthProperties, processingProperties.buildConsumerProperties(),
processingProperties.buildProducerProperties());
}
```
Now if you call the actuator endpoint `actuator/health` you should see the following output:
```json
{
"status" : "UP",
"details" : {
"kafkaConsuming" : {
"status" : "UP"
}
}
}
```
## Configuration
| Property | Default | Description |
|---------------------------------|-----------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| kafka.health.enabled | false | Enabling kafka health check |
| kafka.health.topic | `health-checks` | Topic to subscribe to |
| kafka.health.sendReceiveTimeout | 2.5s | The maximum time, given as [Duration](https://docs.spring.io/spring-boot/docs/2.1.9.RELEASE/reference/html/boot-features-external-config.html#boot-features-external-config-conversion-duration), to wait for sending and receiving the message.|
| kafka.health.pollTimeout | 200ms | The time, given as [Duration](https://docs.spring.io/spring-boot/docs/2.1.9.RELEASE/reference/html/boot-features-external-config.html#boot-features-external-config-conversion-duration), spent fetching the data from the topic |
| kafka.health.cache.maximumSize | 200 | Specifies the maximum number of entries the cache may contain. |
## Releasing
Creating a new release involves the following steps:
1. `./mvnw gitflow:release-start gitflow:release-finish`
2. `git push origin master`
3. `git push --tags`
4. `git push origin develop`
In order to deploy the release to Maven Central, you need to create an account at https://issues.sonatype.org and
configure your account in `~/.m2/settings.xml`:
```xml
<settings>
<servers>
<server>
<id>ossrh</id>
<username>your-jira-id</username>
<password>your-jira-pwd</password>
</server>
</servers>
</settings>
```
The account also needs access to the project on Maven Central. This can be requested by another project member.
Then check out the release you want to deploy (`git checkout x.y.z`) and run `./mvnw deploy -Prelease`.

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= KafkaHealthCheck
:icons: font
== Version 1.1.0
* Make consumer groups unique by appending a random UUID when no group ID is configured explicitly.
* Refactor health check strategy: Kafka polled continuously.
== Version 1.0.0
* Develop kafka health check

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# KafkaHealthCheck
## Version 1.5.3
* Added SpringBootAutoConfiguration
## Version 1.5.2
* Changed maven group publication: switched into `me.bvn13.kafka.health`
## Version 1.4.0
* Got rid of `subscriptionTimeout` as a redundant timeout
## Version 1.3.0
* Health check timeouts can now be configured in `java.time.Duration` format. The timeouts can still be configured using
millisecond values (`long`) as well to stay compatible with old configurations.
* Dependency versions are now managed by `spring-boot-dependencies`. [ISSUE-17](https://github.com/deviceinsight/kafka-health-check/issues/17)
* As of now, cache metrics can be exposed. For this purpose, a corresponding MeterRegistry instance must be passed
when instantiating the Kafka Health Check. [ISSUE-20](https://github.com/deviceinsight/kafka-health-check/issues/20)
* The cache size can now be configured via the property `kafka.health.cache.maximum-size`. The default value for the cache size is 200. [ISSUE-22](https://github.com/deviceinsight/kafka-health-check/issues/22)
* Filtering messages that do not come from the same instance. [ISSUE-24](https://github.com/deviceinsight/kafka-health-check/issues/24)
## Version 1.2.0
* Reduce logging level of health check calls to `TRACE`.
## Version 1.1.0
* Make consumer groups unique by appending a random UUID when no group ID is configured explicitly.
* Refactor health check strategy: Kafka polled continuously.
## Version 1.0.0
* Develop kafka health check

90
pom.xml
View File

@ -4,21 +4,14 @@
<modelVersion>4.0.0</modelVersion>
<groupId>me.bvn13.kafka.health</groupId>
<groupId>com.deviceinsight.kafka</groupId>
<artifactId>kafka-health-check</artifactId>
<version>1.5.6-SNAPSHOT</version>
<version>1.1.0</version>
<packaging>jar</packaging>
<name>Kafka Health Check</name>
<description>A kafka health check for spring boot actuator</description>
<url>https://github.com/bvn13/kafka-health-check</url>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>2.7.1</version>
<relativePath />
</parent>
<url>https://github.com/deviceinsight/kafka-health-check</url>
<properties>
<!-- Java -->
@ -30,59 +23,68 @@
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<!-- Versions -->
<nexus.url>https://s01.oss.sonatype.org</nexus.url>
<guava.version>30.1.1-jre</guava.version>
<maven-deploy-plugin.version>2.8.2</maven-deploy-plugin.version>
<nexus-staging-maven-plugin.version>1.6.13</nexus-staging-maven-plugin.version>
<spring-boot.version>2.1.5.RELEASE</spring-boot.version>
<spring.kafka.version>2.2.4.RELEASE</spring.kafka.version>
<caffeine.version>2.7.0</caffeine.version>
<awaitility.version>3.1.6</awaitility.version>
<junit.jupiter.version>5.4.2</junit.jupiter.version>
<assertj-core.version>3.11.1</assertj-core.version>
<maven-source-plugin.version>3.0.1</maven-source-plugin.version>
<maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
<nexus-staging-maven-plugin.version>1.6.8</nexus-staging-maven-plugin.version>
<maven-gpg-plugin.version>1.6</maven-gpg-plugin.version>
<gitflow-maven-plugin.version>1.18.0</gitflow-maven-plugin.version>
<maven-javadoc-plugin.version>3.1.0</maven-javadoc-plugin.version>
<gitflow-maven-plugin.version>1.12.0</gitflow-maven-plugin.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
<version>${spring-boot.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.kafka</groupId>
<artifactId>spring-kafka</artifactId>
<version>${spring.kafka.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.github.ben-manes.caffeine</groupId>
<artifactId>caffeine</artifactId>
<version>${caffeine.version}</version>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter</artifactId>
<version>${junit.jupiter.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.assertj</groupId>
<artifactId>assertj-core</artifactId>
<version>${assertj-core.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-test</artifactId>
<version>${spring-boot.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.kafka</groupId>
<artifactId>spring-kafka-test</artifactId>
<version>${spring.kafka.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.awaitility</groupId>
<artifactId>awaitility</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>${guava.version}</version>
<version>${awaitility.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
@ -114,8 +116,7 @@
<gitFlowConfig>
<developmentBranch>develop</developmentBranch>
</gitFlowConfig>
<incrementVersionAtFinish>true</incrementVersionAtFinish>
<versionDigitToIncrement>2</versionDigitToIncrement>
<versionDigitToIncrement>1</versionDigitToIncrement>
</configuration>
</plugin>
</plugins>
@ -136,15 +137,7 @@
<developers>
<developer>
<id>bvn13</id>
<name>Vyacheslav Boyko</name>
<email>dev@bvn13.me</email>
<roles>
<role>Developer</role>
</roles>
</developer>
<developer>
<id>ezienecker</id>
<id>ManuZiD</id>
<name>Emanuel Zienecker</name>
<email>emanuel.zienecker@device-insight.com</email>
<roles>
@ -162,10 +155,10 @@
</developers>
<scm>
<connection>scm:git:git://github.com/bvn13/kafka-health-check.git</connection>
<developerConnection>scm:git:ssh://git@github.com:bvn13/kafka-health-check.git</developerConnection>
<connection>scm:git:git://github.com/deviceinsight/kafka-health-check.git</connection>
<developerConnection>scm:git:ssh://git@github.com:deviceinsight/kafka-health-check.git</developerConnection>
<tag>HEAD</tag>
<url>https://github.com/bvn13/kafka-health-check.git</url>
<url>https://github.com/deviceinsight/kafka-health-check.git</url>
</scm>
<profiles>
@ -176,6 +169,7 @@
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-source-plugin</artifactId>
<version>${maven-source-plugin.version}</version>
<executions>
<execution>
<id>attach-sources</id>
@ -189,6 +183,7 @@
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-javadoc-plugin</artifactId>
<version>${maven-javadoc-plugin.version}</version>
<executions>
<execution>
<id>attach-javadocs</id>
@ -198,31 +193,14 @@
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-deploy-plugin</artifactId>
<version>${maven-deploy-plugin.version}</version>
<configuration>
<skip>true</skip>
</configuration>
</plugin>
<plugin>
<groupId>org.sonatype.plugins</groupId>
<artifactId>nexus-staging-maven-plugin</artifactId>
<version>${nexus-staging-maven-plugin.version}</version>
<extensions>true</extensions>
<executions>
<execution>
<id>default-deploy</id>
<phase>deploy</phase>
<goals>
<goal>deploy</goal>
</goals>
</execution>
</executions>
<configuration>
<serverId>ossrh</serverId>
<nexusUrl>${nexus.url}</nexusUrl>
<nexusUrl>https://oss.sonatype.org/</nexusUrl>
<autoReleaseAfterClose>true</autoReleaseAfterClose>
</configuration>
</plugin>
@ -246,12 +224,8 @@
<distributionManagement>
<snapshotRepository>
<id>ossrh</id>
<url>${nexus.url}/content/repositories/snapshots</url>
<url>https://oss.sonatype.org/content/repositories/snapshots</url>
</snapshotRepository>
<repository>
<id>ossrh</id>
<url>${nexus.url}/service/local/staging/deploy/maven2/</url>
</repository>
</distributionManagement>
<pluginRepositories>

View File

@ -1,4 +1,4 @@
package me.bvn13.kafka.health;
package com.deviceinsight.kafka.health;
final class KafkaCommunicationResult {

View File

@ -1,12 +1,9 @@
package me.bvn13.kafka.health;
package com.deviceinsight.kafka.health;
import static java.util.concurrent.TimeUnit.MILLISECONDS;
import com.github.benmanes.caffeine.cache.Cache;
import com.github.benmanes.caffeine.cache.Caffeine;
import io.micrometer.core.instrument.MeterRegistry;
import io.micrometer.core.instrument.Tag;
import io.micrometer.core.instrument.binder.cache.CaffeineCacheMetrics;
import org.apache.kafka.clients.consumer.Consumer;
import org.apache.kafka.clients.consumer.ConsumerConfig;
import org.apache.kafka.clients.consumer.ConsumerRebalanceListener;
@ -32,13 +29,14 @@ import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.RejectedExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.stream.StreamSupport;
import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
@ -47,40 +45,33 @@ public class KafkaConsumingHealthIndicator extends AbstractHealthIndicator {
private static final Logger logger = LoggerFactory.getLogger(KafkaConsumingHealthIndicator.class);
private static final String CONSUMER_GROUP_PREFIX = "health-check-";
private static final String CACHE_NAME = "kafka-health-check";
private final Consumer<String, String> consumer;
private final Producer<String, String> producer;
private final String topic;
private final Duration sendReceiveTimeout;
private final Duration pollTimeout;
private final long sendReceiveTimeoutMs;
private final long pollTimeoutMs;
private final long subscriptionTimeoutMs;
private final ExecutorService executor;
private final AtomicBoolean running;
private final Cache<String, String> cache;
private final String consumerGroupId;
private KafkaCommunicationResult kafkaCommunicationResult;
public KafkaConsumingHealthIndicator(KafkaHealthProperties kafkaHealthProperties,
Map<String, Object> kafkaConsumerProperties, Map<String, Object> kafkaProducerProperties) {
this(kafkaHealthProperties, kafkaConsumerProperties, kafkaProducerProperties, null);
}
public KafkaConsumingHealthIndicator(KafkaHealthProperties kafkaHealthProperties,
Map<String, Object> kafkaConsumerProperties, Map<String, Object> kafkaProducerProperties,
MeterRegistry meterRegistry) {
logger.info("Initializing kafka health check with properties: {}", kafkaHealthProperties);
this.topic = kafkaHealthProperties.getTopic();
this.sendReceiveTimeout = kafkaHealthProperties.getSendReceiveTimeout();
this.pollTimeout = kafkaHealthProperties.getPollTimeout();
this.sendReceiveTimeoutMs = kafkaHealthProperties.getSendReceiveTimeoutMs();
this.pollTimeoutMs = kafkaHealthProperties.getPollTimeoutMs();
this.subscriptionTimeoutMs = kafkaHealthProperties.getSubscriptionTimeoutMs();
Map<String, Object> kafkaConsumerPropertiesCopy = new HashMap<>(kafkaConsumerProperties);
this.consumerGroupId = getUniqueConsumerGroupId(kafkaConsumerPropertiesCopy);
kafkaConsumerPropertiesCopy.put(ConsumerConfig.GROUP_ID_CONFIG, consumerGroupId);
setConsumerGroup(kafkaConsumerPropertiesCopy);
StringDeserializer deserializer = new StringDeserializer();
StringSerializer serializer = new StringSerializer();
@ -90,12 +81,7 @@ public class KafkaConsumingHealthIndicator extends AbstractHealthIndicator {
this.executor = Executors.newSingleThreadExecutor();
this.running = new AtomicBoolean(true);
this.cache = Caffeine.newBuilder()
.expireAfterWrite(sendReceiveTimeout)
.maximumSize(kafkaHealthProperties.getCache().getMaximumSize())
.build();
enableCacheMetrics(cache, meterRegistry);
this.cache = Caffeine.newBuilder().expireAfterWrite(sendReceiveTimeoutMs, TimeUnit.MILLISECONDS).build();
this.kafkaCommunicationResult =
KafkaCommunicationResult.failure(new RejectedExecutionException("Kafka Health Check is starting."));
@ -111,10 +97,8 @@ public class KafkaConsumingHealthIndicator extends AbstractHealthIndicator {
executor.submit(() -> {
while (running.get()) {
ConsumerRecords<String, String> records = consumer.poll(pollTimeout);
StreamSupport.stream(records.spliterator(), false)
.filter(record -> record.key() != null && record.key().contains(consumerGroupId))
.forEach(record -> cache.put(record.key(), record.value()));
ConsumerRecords<String, String> records = consumer.poll(Duration.ofMillis(pollTimeoutMs));
records.forEach(record -> cache.put(record.key(), record.value()));
}
});
}
@ -127,11 +111,12 @@ public class KafkaConsumingHealthIndicator extends AbstractHealthIndicator {
consumer.close();
}
private String getUniqueConsumerGroupId(Map<String, Object> kafkaConsumerProperties) {
private void setConsumerGroup(Map<String, Object> kafkaConsumerProperties) {
try {
String groupId = (String) kafkaConsumerProperties.getOrDefault(ConsumerConfig.GROUP_ID_CONFIG,
UUID.randomUUID().toString());
return CONSUMER_GROUP_PREFIX + groupId + "-" + InetAddress.getLocalHost().getHostAddress();
kafkaConsumerProperties.put(ConsumerConfig.GROUP_ID_CONFIG,
CONSUMER_GROUP_PREFIX + groupId + "-" + InetAddress.getLocalHost().getHostAddress());
} catch (UnknownHostException e) {
throw new IllegalStateException(e);
}
@ -139,7 +124,7 @@ public class KafkaConsumingHealthIndicator extends AbstractHealthIndicator {
private void subscribeToTopic() throws InterruptedException {
final AtomicBoolean subscribed = new AtomicBoolean(false);
final CountDownLatch subscribed = new CountDownLatch(1);
logger.info("Subscribe to health check topic={}", topic);
@ -147,7 +132,7 @@ public class KafkaConsumingHealthIndicator extends AbstractHealthIndicator {
@Override
public void onPartitionsRevoked(Collection<TopicPartition> partitions) {
// nothing to do here
// nothing to do her
}
@Override
@ -155,13 +140,13 @@ public class KafkaConsumingHealthIndicator extends AbstractHealthIndicator {
logger.debug("Got partitions = {}", partitions);
if (!partitions.isEmpty()) {
subscribed.set(true);
subscribed.countDown();
}
}
});
consumer.poll(pollTimeout);
if (!subscribed.get()) {
consumer.poll(Duration.ofMillis(pollTimeoutMs));
if (!subscribed.await(subscriptionTimeoutMs, MILLISECONDS)) {
throw new BeanInitializationException("Subscription to kafka failed, topic=" + topic);
}
@ -172,6 +157,7 @@ public class KafkaConsumingHealthIndicator extends AbstractHealthIndicator {
try {
return sendKafkaMessage();
} catch (ExecutionException e) {
logger.warn("Kafka health check execution failed.", e);
this.kafkaCommunicationResult = KafkaCommunicationResult.failure(e);
@ -188,12 +174,10 @@ public class KafkaConsumingHealthIndicator extends AbstractHealthIndicator {
private String sendKafkaMessage() throws InterruptedException, ExecutionException, TimeoutException {
String message = UUID.randomUUID().toString();
String key = createKeyFromMessageAndConsumerGroupId(message);
logger.trace("Send health check message = {}", message);
logger.debug("Send health check message = {}", message);
producer.send(new ProducerRecord<>(topic, key, message))
.get(sendReceiveTimeout.toMillis(), MILLISECONDS);
producer.send(new ProducerRecord<>(topic, message, message)).get(sendReceiveTimeoutMs, MILLISECONDS);
return message;
}
@ -208,40 +192,30 @@ public class KafkaConsumingHealthIndicator extends AbstractHealthIndicator {
long startTime = System.currentTimeMillis();
while (true) {
String key = createKeyFromMessageAndConsumerGroupId(expectedMessage);
String receivedMessage = cache.getIfPresent(key);
String receivedMessage = cache.getIfPresent(expectedMessage);
if (expectedMessage.equals(receivedMessage)) {
builder.up();
return;
} else if (System.currentTimeMillis() - startTime > sendReceiveTimeout.toMillis()) {
} else if (System.currentTimeMillis() - startTime > sendReceiveTimeoutMs) {
if (kafkaCommunicationResult.isFailure()) {
goDown(builder);
} else {
builder.down(new TimeoutException("Sending and receiving took longer than " + sendReceiveTimeout))
builder.down(new TimeoutException(
"Sending and receiving took longer than " + sendReceiveTimeoutMs + " ms"))
.withDetail("topic", topic);
}
return;
}
}
}
private void goDown(Health.Builder builder) {
builder.down(kafkaCommunicationResult.getException()).withDetail("topic", topic);
}
private void enableCacheMetrics(Cache<String, String> cache, MeterRegistry meterRegistry) {
if (meterRegistry == null) {
return;
}
CaffeineCacheMetrics.monitor(meterRegistry, cache, CACHE_NAME,
Collections.singletonList(Tag.of("instance", consumerGroupId)));
}
private String createKeyFromMessageAndConsumerGroupId(String message) {
return message + "-" + consumerGroupId;
}
}

View File

@ -0,0 +1,41 @@
package com.deviceinsight.kafka.health;
public class KafkaHealthProperties {
private String topic = "health-checks";
private long sendReceiveTimeoutMs = 2500;
private long pollTimeoutMs = 200;
private long subscriptionTimeoutMs = 5000;
public String getTopic() {
return topic;
}
public void setTopic(String topic) {
this.topic = topic;
}
public long getSendReceiveTimeoutMs() {
return sendReceiveTimeoutMs;
}
public void setSendReceiveTimeoutMs(long sendReceiveTimeoutMs) {
this.sendReceiveTimeoutMs = sendReceiveTimeoutMs;
}
public long getPollTimeoutMs() {
return pollTimeoutMs;
}
public void setPollTimeoutMs(long pollTimeoutMs) {
this.pollTimeoutMs = pollTimeoutMs;
}
public long getSubscriptionTimeoutMs() {
return subscriptionTimeoutMs;
}
public void setSubscriptionTimeoutMs(long subscriptionTimeoutMs) {
this.subscriptionTimeoutMs = subscriptionTimeoutMs;
}
}

View File

@ -1,32 +0,0 @@
package me.bvn13.kafka.health;
import org.springframework.boot.actuate.health.AbstractHealthIndicator;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.autoconfigure.kafka.KafkaProperties;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
@Configuration
@ConditionalOnClass(AbstractHealthIndicator.class)
@ConditionalOnProperty(name = "kafka.health.enabled", havingValue = "true")
public class KafkaHealthAutoConfiguration {
@Bean
@ConditionalOnMissingBean(KafkaHealthProperties.class)
@ConfigurationProperties("kafka.health")
public KafkaHealthProperties kafkaHealthProperties() {
return new KafkaHealthProperties();
}
@Bean
@ConditionalOnMissingBean(KafkaConsumingHealthIndicator.class)
public KafkaConsumingHealthIndicator kafkaConsumingHealthIndicator(KafkaHealthProperties kafkaHealthProperties,
KafkaProperties kafkaProperties) {
return new KafkaConsumingHealthIndicator(kafkaHealthProperties, kafkaProperties.buildConsumerProperties(),
kafkaProperties.buildProducerProperties());
}
}

View File

@ -1,19 +0,0 @@
package me.bvn13.kafka.health;
public class KafkaHealthCheckCacheProperties {
private int maximumSize = 200;
public int getMaximumSize() {
return maximumSize;
}
public void setMaximumSize(int maximumSize) {
this.maximumSize = maximumSize;
}
@Override
public String toString() {
return "CacheProperties{maximumSize=" + maximumSize + '}';
}
}

View File

@ -1,60 +0,0 @@
package me.bvn13.kafka.health;
import java.time.Duration;
public class KafkaHealthProperties {
private String topic = "health-checks";
private Duration sendReceiveTimeout = Duration.ofMillis(2500);
private Duration pollTimeout = Duration.ofMillis(200);
private KafkaHealthCheckCacheProperties cache = new KafkaHealthCheckCacheProperties();
public String getTopic() {
return topic;
}
public void setTopic(String topic) {
this.topic = topic;
}
public Duration getSendReceiveTimeout() {
return sendReceiveTimeout;
}
public void setSendReceiveTimeout(Duration sendReceiveTimeout) {
this.sendReceiveTimeout = sendReceiveTimeout;
}
@Deprecated
public void setSendReceiveTimeoutMs(long sendReceiveTimeoutMs) {
setSendReceiveTimeout(Duration.ofMillis(sendReceiveTimeoutMs));
}
public Duration getPollTimeout() {
return pollTimeout;
}
public void setPollTimeout(Duration pollTimeout) {
this.pollTimeout = pollTimeout;
}
@Deprecated
public void setPollTimeoutMs(long pollTimeoutMs) {
setPollTimeout(Duration.ofMillis(pollTimeoutMs));
}
public KafkaHealthCheckCacheProperties getCache() {
return cache;
}
public void setCache(KafkaHealthCheckCacheProperties cache) {
this.cache = cache;
}
@Override
public String toString() {
return "KafkaHealthProperties{" + "topic='" + topic + '\'' + ", sendReceiveTimeout=" + sendReceiveTimeout +
", pollTimeout=" + pollTimeout + ", cacheProperties=" +
cache + '}';
}
}

View File

@ -1 +0,0 @@
org.springframework.boot.autoconfigure.EnableAutoConfiguration=me.bvn13.kafka.health.KafkaHealthAutoConfiguration

View File

@ -1,6 +1,6 @@
package me.bvn13.kafka.health;
package com.deviceinsight.kafka.health;
import static me.bvn13.kafka.health.KafkaConsumingHealthIndicatorTest.TOPIC;
import static com.deviceinsight.kafka.health.KafkaConsumingHealthIndicatorTest.TOPIC;
import static org.assertj.core.api.Assertions.assertThat;
import kafka.server.KafkaServer;

View File

@ -1,55 +0,0 @@
package me.bvn13.kafka.health;
import static org.assertj.core.api.Assertions.assertThat;
import static org.junit.jupiter.params.provider.Arguments.arguments;
import com.google.common.collect.ImmutableMap;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.Arguments;
import org.junit.jupiter.params.provider.MethodSource;
import org.springframework.boot.context.properties.bind.Binder;
import org.springframework.boot.context.properties.source.ConfigurationPropertySource;
import org.springframework.boot.context.properties.source.MapConfigurationPropertySource;
import java.time.Duration;
import java.util.stream.Stream;
public class KafkaHealthPropertiesTest {
// @formatter:off
private static final ConfigurationPropertySource DURATION_PROPERTY_SOURCE = new MapConfigurationPropertySource(ImmutableMap.of(
"kafka.health.topic", "custom-topic",
"kafka.health.send-receive-timeout", "1m",
"kafka.health.poll-timeout", "2s",
"kafka.health.cache.maximum-size", "42"
));
private static final ConfigurationPropertySource MILLISECONDS_PROPERTY_SOURCE = new MapConfigurationPropertySource(ImmutableMap.of(
"kafka.health.topic", "custom-topic",
"kafka.health.send-receive-timeout-ms", "60000",
"kafka.health.poll-timeout-ms", "2000",
"kafka.health.cache.maximum-size", "42"
));
// @formatter:on
@ParameterizedTest(name = "using {0} based setters")
@MethodSource("configurationPropertySources")
@SuppressWarnings("unused")
public void test_that_properties_bind_to_KafkaHealthProperties(String sourceName,
ConfigurationPropertySource propertySource) {
KafkaHealthProperties kafkaHealthProperties =
new Binder(propertySource).bind("kafka.health", KafkaHealthProperties.class).get();
assertThat(kafkaHealthProperties.getTopic()).isEqualTo("custom-topic");
assertThat(kafkaHealthProperties.getSendReceiveTimeout()).isEqualTo(Duration.ofMinutes(1));
assertThat(kafkaHealthProperties.getPollTimeout()).isEqualTo(Duration.ofSeconds(2));
assertThat(kafkaHealthProperties.getCache().getMaximumSize()).isEqualTo(42);
}
static Stream<Arguments> configurationPropertySources() {
return Stream.of(arguments("Duration", DURATION_PROPERTY_SOURCE),
arguments("long (milliseconds)", MILLISECONDS_PROPERTY_SOURCE));
}
}