refactor: rename kafka sink module

This commit is contained in:
lingniu
2026-07-01 10:56:33 +08:00
parent 849e8f8a8b
commit e80fa6f38c
43 changed files with 87 additions and 66 deletions

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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.lingniu.ingest</groupId>
<artifactId>lingniu-vehicle-ingest</artifactId>
<version>0.1.0-SNAPSHOT</version>
<relativePath>../../../pom.xml</relativePath>
</parent>
<artifactId>sink-kafka</artifactId>
<name>sink-kafka</name>
<description>Kafka producer + Protobuf Envelope + 重试/熔断/DLQ。</description>
<dependencies>
<dependency>
<groupId>com.lingniu.ingest</groupId>
<artifactId>ingest-api</artifactId>
</dependency>
<dependency>
<groupId>com.lingniu.ingest</groupId>
<artifactId>ingest-facts</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.apache.kafka</groupId>
<artifactId>kafka-clients</artifactId>
</dependency>
<dependency>
<groupId>com.google.protobuf</groupId>
<artifactId>protobuf-java</artifactId>
</dependency>
<dependency>
<groupId>com.google.protobuf</groupId>
<artifactId>protobuf-java-util</artifactId>
</dependency>
<dependency>
<groupId>io.github.resilience4j</groupId>
<artifactId>resilience4j-retry</artifactId>
</dependency>
<dependency>
<groupId>io.github.resilience4j</groupId>
<artifactId>resilience4j-circuitbreaker</artifactId>
</dependency>
<dependency>
<groupId>org.testcontainers</groupId>
<artifactId>kafka</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.assertj</groupId>
<artifactId>assertj-core</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<extensions>
<extension>
<groupId>kr.motd.maven</groupId>
<artifactId>os-maven-plugin</artifactId>
<version>1.7.1</version>
</extension>
</extensions>
<plugins>
<plugin>
<groupId>org.xolstice.maven.plugins</groupId>
<artifactId>protobuf-maven-plugin</artifactId>
<version>0.6.1</version>
<configuration>
<protocArtifact>com.google.protobuf:protoc:${protobuf.version}:exe:${os.detected.classifier}</protocArtifact>
</configuration>
<executions>
<execution>
<goals>
<goal>compile</goal>
<goal>test-compile</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>

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package com.lingniu.ingest.sink.kafka;
import com.lingniu.ingest.api.event.AlarmPayload;
import com.lingniu.ingest.api.event.LocationPayload;
import com.lingniu.ingest.api.event.RawArchiveKeys;
import com.lingniu.ingest.api.event.RealtimePayload;
import com.lingniu.ingest.api.event.TelemetryFieldValue;
import com.lingniu.ingest.api.event.TelemetrySnapshot;
import com.lingniu.ingest.api.event.VehicleEvent;
import com.lingniu.ingest.api.event.VehicleEventTelemetrySnapshotMapper;
import com.lingniu.ingest.facts.FactIds;
import com.lingniu.ingest.facts.VehicleKey;
import com.lingniu.ingest.sink.kafka.proto.ParseStatusProto;
import com.lingniu.ingest.sink.kafka.proto.TelemetryField;
import com.lingniu.ingest.sink.kafka.proto.TelemetrySnapshot.Builder;
import com.lingniu.ingest.sink.kafka.proto.VehicleEnvelope;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.HexFormat;
/**
* 领域事件 → Protobuf Envelope 的纯函数映射。通过 switch 模式匹配穷尽处理,
* 新增 {@link VehicleEvent} 子类型时编译期就会提示补齐分支。
*/
public final class EnvelopeMapper {
private static final String SCHEMA_VERSION = "1.0";
private final String nodeId;
public EnvelopeMapper(String nodeId) {
this.nodeId = nodeId;
}
public VehicleEnvelope toEnvelope(VehicleEvent event) {
VehicleEnvelope.Builder b = VehicleEnvelope.newBuilder()
.setSchemaVersion(SCHEMA_VERSION)
.setEventId(event.eventId())
.setTraceId(event.traceId() == null ? "" : event.traceId())
.setVin(event.vin())
.setSource(event.source().name())
.setEventTimeMs(event.eventTime().toEpochMilli())
.setIngestTimeMs(event.ingestTime().toEpochMilli())
.setIngestNodeId(nodeId);
if (event.metadata() != null) b.putAllMetadata(event.metadata());
// telemetrySnapshot 是跨事件类型的统一字段视图,消费者可先读它,必要时再读具体 payload。
VehicleEventTelemetrySnapshotMapper.toSnapshot(event)
.map(EnvelopeMapper::buildTelemetrySnapshot)
.ifPresent(b::setTelemetrySnapshot);
switch (event) {
case VehicleEvent.Realtime r -> b.setRealtime(buildRealtime(r.payload()));
case VehicleEvent.Location l -> b.setLocation(buildLocation(l.payload()));
case VehicleEvent.Alarm a -> b.setAlarm(buildAlarm(a.payload()));
case VehicleEvent.Login lg -> b.setLogin(
com.lingniu.ingest.sink.kafka.proto.LoginPayload.newBuilder()
.setIccid(nullToEmpty(lg.iccid()))
.setProtocolVersion(nullToEmpty(lg.protocolVersion()))
.build());
case VehicleEvent.Logout ignored -> b.setLogout(
com.lingniu.ingest.sink.kafka.proto.LogoutPayload.getDefaultInstance());
case VehicleEvent.Heartbeat ignored -> b.setHeartbeat(
com.lingniu.ingest.sink.kafka.proto.HeartbeatPayload.getDefaultInstance());
case VehicleEvent.MediaMeta m -> b.setMediaMeta(
com.lingniu.ingest.sink.kafka.proto.MediaMetaPayload.newBuilder()
.setMediaId(nullToEmpty(m.mediaId()))
.setMediaType(nullToEmpty(m.mediaType()))
.setSizeBytes(m.sizeBytes())
.setArchiveRef(nullToEmpty(m.archiveRef()))
.build());
case VehicleEvent.Passthrough p -> b.setPassthrough(
com.lingniu.ingest.sink.kafka.proto.PassthroughPayload.newBuilder()
.setPassthroughType(p.passthroughType())
.setData(com.google.protobuf.ByteString.copyFrom(
p.data() == null ? new byte[0] : p.data()))
.build());
case VehicleEvent.RawArchive ra -> {
byte[] rawBytes = ra.rawBytes() == null ? new byte[0] : ra.rawBytes();
int size = rawBytes.length;
String key = rawArchiveKey(ra);
String uri = rawArchiveUri(ra, key);
String phone = metadataValue(ra, "phone");
String vehicleKey = VehicleKey.derive(ra.source(), ra.vin(), phone, ra.eventId());
String checksum = sha256(rawBytes);
String frameId = FactIds.rawFrameId(
ra.source(), vehicleKey, ra.command(), ra.infoType(), ra.ingestTime(), checksum);
// RAW envelope 只携带 URI/size 引用信息,不把完整原始字节塞进 Kafka避免 topic 膨胀。
b.putMetadata(RawArchiveKeys.META_KEY, key);
b.putMetadata(RawArchiveKeys.META_URI, uri);
b.putMetadata(RawArchiveKeys.META_EVENT_ID, ra.eventId());
b.setRawArchive(com.lingniu.ingest.sink.kafka.proto.RawArchiveRef.newBuilder()
.setUri(uri)
.setChecksum(checksum)
.setSizeBytes(size)
.setParsedJson(nullToEmpty(ra.parsedJson()))
.build());
b.setRawFrameFact(com.lingniu.ingest.sink.kafka.proto.RawFrameFactPayload.newBuilder()
.setFrameId(frameId)
.setVehicleKey(vehicleKey)
.setVin(nullToEmpty(ra.vin()))
.setPhone(phone)
.setMessageId(ra.command())
.setSubType(ra.infoType())
.setRawUri(uri)
.setChecksum(checksum)
.setRawSizeBytes(size)
.setParseStatus(parseStatus(ra))
.setParseError(parseError(ra))
.setPeer(metadataValue(ra, "peer"))
.putAllMetadata(ra.metadata() == null ? java.util.Map.of() : ra.metadata())
.build());
}
}
return b.build();
}
private static com.lingniu.ingest.sink.kafka.proto.TelemetrySnapshot buildTelemetrySnapshot(TelemetrySnapshot snapshot) {
Builder b = com.lingniu.ingest.sink.kafka.proto.TelemetrySnapshot.newBuilder()
.setEventType(snapshot.eventType())
.setRawArchiveUri(snapshot.rawArchiveUri());
for (TelemetryFieldValue field : snapshot.fields()) {
b.addFields(TelemetryField.newBuilder()
.setKey(field.key())
.setValueType(field.valueType().name())
.setValue(field.value())
.setUnit(field.unit())
.setQuality(field.quality().name())
.setSourcePath(field.sourcePath())
.build());
}
return b.build();
}
private static com.lingniu.ingest.sink.kafka.proto.RealtimePayload buildRealtime(RealtimePayload p) {
var b = com.lingniu.ingest.sink.kafka.proto.RealtimePayload.newBuilder();
if (p.speedKmh() != null) b.setSpeedKmh(p.speedKmh());
if (p.totalMileageKm() != null) b.setTotalMileageKm(p.totalMileageKm());
if (p.batterySoc() != null) b.setBatterySoc(p.batterySoc());
if (p.batteryVoltageV() != null) b.setBatteryVoltageV(p.batteryVoltageV());
if (p.batteryCurrentA() != null) b.setBatteryCurrentA(p.batteryCurrentA());
if (p.fcVoltageV() != null) b.setFcVoltageV(p.fcVoltageV());
if (p.fcCurrentA() != null) b.setFcCurrentA(p.fcCurrentA());
if (p.fcTempC() != null) b.setFcTempC(p.fcTempC());
if (p.hydrogenRemainingKg() != null) b.setHydrogenRemainingKg(p.hydrogenRemainingKg());
if (p.hydrogenHighPressureMpa() != null) b.setHydrogenHighPressureMpa(p.hydrogenHighPressureMpa());
if (p.hydrogenLowPressureMpa() != null) b.setHydrogenLowPressureMpa(p.hydrogenLowPressureMpa());
if (p.vehicleState() != null) b.setVehicleState(p.vehicleState().name());
if (p.chargingState() != null) b.setChargingState(p.chargingState().name());
if (p.runningMode() != null) b.setRunningMode(p.runningMode().name());
if (p.gearLevel() != null) b.setGearLevel(p.gearLevel());
if (p.acceleratorPedal() != null) b.setAcceleratorPedal(p.acceleratorPedal());
if (p.brakePedal() != null) b.setBrakePedal(p.brakePedal());
if (p.longitude() != null) b.setLongitude(p.longitude());
if (p.latitude() != null) b.setLatitude(p.latitude());
if (p.altitudeM() != null) b.setAltitudeM(p.altitudeM());
if (p.directionDeg() != null) b.setDirectionDeg(p.directionDeg());
if (p.ambientTempC() != null) b.setAmbientTempC(p.ambientTempC());
if (p.coolantTempC() != null) b.setCoolantTempC(p.coolantTempC());
return b.build();
}
private static com.lingniu.ingest.sink.kafka.proto.LocationPayload buildLocation(LocationPayload p) {
return com.lingniu.ingest.sink.kafka.proto.LocationPayload.newBuilder()
.setLongitude(p.longitude())
.setLatitude(p.latitude())
.setAltitudeM(p.altitudeM())
.setSpeedKmh(p.speedKmh())
.setDirectionDeg(p.directionDeg())
.setAlarmFlag(p.alarmFlag())
.setStatusFlag(p.statusFlag())
.build();
}
private static com.lingniu.ingest.sink.kafka.proto.AlarmPayload buildAlarm(AlarmPayload p) {
var b = com.lingniu.ingest.sink.kafka.proto.AlarmPayload.newBuilder()
.setLevel(p.level().name())
.setAlarmTypeCode(p.alarmTypeCode())
.setAlarmTypeName(nullToEmpty(p.alarmTypeName()));
if (p.faultCodes() != null) b.addAllFaultCodes(p.faultCodes());
if (p.activeBits() != null) b.addAllActiveBits(p.activeBits());
if (p.longitude() != null) b.setLongitude(p.longitude());
if (p.latitude() != null) b.setLatitude(p.latitude());
return b.build();
}
private static String nullToEmpty(String s) {
return s == null ? "" : s;
}
private static String rawArchiveKey(VehicleEvent.RawArchive raw) {
String key = raw.metadata() == null ? "" : raw.metadata().getOrDefault(RawArchiveKeys.META_KEY, "");
return key == null || key.isBlank() ? RawArchiveKeys.key(raw) : key;
}
private static String rawArchiveUri(VehicleEvent.RawArchive raw, String key) {
String uri = raw.metadata() == null ? "" : raw.metadata().getOrDefault(RawArchiveKeys.META_URI, "");
return uri == null || uri.isBlank() ? RawArchiveKeys.logicalUri(key) : uri;
}
private static String metadataValue(VehicleEvent event, String key) {
if (event.metadata() == null) {
return "";
}
return nullToEmpty(event.metadata().get(key));
}
private static ParseStatusProto parseStatus(VehicleEvent.RawArchive raw) {
if (hasTruthyMetadata(raw, "frameError")
|| hasTruthyMetadata(raw, "parseError")
|| hasTruthyMetadata(raw, "processingError")) {
return ParseStatusProto.PARSE_STATUS_FAILED;
}
return ParseStatusProto.PARSE_STATUS_NOT_PARSED;
}
private static String parseError(VehicleEvent.RawArchive raw) {
String frameError = metadataValue(raw, "frameErrorMessage");
if (!frameError.isBlank()) {
return frameError;
}
String parseError = metadataValue(raw, "parseErrorMessage");
if (!parseError.isBlank()) {
return parseError;
}
return metadataValue(raw, "processingErrorMessage");
}
private static boolean hasTruthyMetadata(VehicleEvent event, String key) {
return Boolean.parseBoolean(metadataValue(event, key));
}
private static String sha256(byte[] bytes) {
try {
MessageDigest digest = MessageDigest.getInstance("SHA-256");
return "sha256:" + HexFormat.of().formatHex(digest.digest(bytes == null ? new byte[0] : bytes));
} catch (NoSuchAlgorithmException e) {
throw new IllegalStateException("SHA-256 is unavailable", e);
}
}
}

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package com.lingniu.ingest.sink.kafka;
import com.lingniu.ingest.api.consumer.EnvelopeConsumerProcessor;
import org.apache.kafka.clients.consumer.ConsumerConfig;
import org.apache.kafka.clients.consumer.KafkaConsumer;
import org.apache.kafka.common.serialization.ByteArrayDeserializer;
import org.apache.kafka.common.serialization.StringDeserializer;
import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.function.Function;
public final class KafkaEnvelopeConsumerFactory {
private final Function<Properties, org.apache.kafka.clients.consumer.Consumer<String, byte[]>> consumerFactory;
public KafkaEnvelopeConsumerFactory() {
this(KafkaConsumer::new);
}
KafkaEnvelopeConsumerFactory(
Function<Properties, org.apache.kafka.clients.consumer.Consumer<String, byte[]>> consumerFactory) {
this.consumerFactory = consumerFactory;
}
public List<KafkaEnvelopeConsumerWorker> createWorkers(Map<String, EnvelopeConsumerProcessor> processors,
KafkaSinkProperties props) {
Map<String, KafkaSinkProperties.Binding> bindings = effectiveBindings(props);
List<KafkaEnvelopeConsumerWorker> workers = new ArrayList<>();
for (Map.Entry<String, KafkaSinkProperties.Binding> entry : bindings.entrySet()) {
String processorBeanName = entry.getKey();
// binding 的 key 必须和 Spring Bean 名一致;这样配置只声明 topic/group
// 实际处理逻辑仍由各业务模块自己的 EnvelopeConsumerProcessor 承接。
EnvelopeConsumerProcessor processor = processors.get(processorBeanName);
KafkaSinkProperties.Binding binding = entry.getValue();
if (processor == null || binding == null || !binding.isEnabled()) {
continue;
}
List<String> topics = cleanTopics(binding.getTopics());
if (topics.isEmpty()) {
continue;
}
int concurrency = Math.max(1, props.getConsumer().getConcurrency());
for (int workerIndex = 0; workerIndex < concurrency; workerIndex++) {
KafkaEnvelopeConsumerWorker worker = new KafkaEnvelopeConsumerWorker(
consumerFactory.apply(consumerProperties(props, binding, processorBeanName,
workerIndex, concurrency)),
topicProcessors(topics, processor));
worker.subscribe(topics);
workers.add(worker);
}
}
return workers;
}
private Map<String, KafkaSinkProperties.Binding> effectiveBindings(KafkaSinkProperties props) {
Map<String, KafkaSinkProperties.Binding> configured = props.getConsumer().getBindings();
if (configured != null && !configured.isEmpty()) {
return configured;
}
// 默认绑定仅给未显式配置 bindings 的轻量运行时兜底。
// 生产 history app 会显式绑定各协议 event/raw topic并写入 TDengine raw_frames/locations。
KafkaSinkProperties.Topics topics = props.getTopics();
Map<String, KafkaSinkProperties.Binding> defaults = new LinkedHashMap<>();
defaults.put("eventHistoryEnvelopeConsumerProcessor", binding(
"vehicle-event-history",
topics.getRealtime(), topics.getLocation(), topics.getAlarm(), topics.getSession(), topics.getMediaMeta()));
defaults.put("vehicleStateEnvelopeConsumerProcessor", binding(
"vehicle-state",
topics.getRealtime(), topics.getLocation(), topics.getAlarm()));
defaults.put("vehicleStatEnvelopeConsumerProcessor", binding(
"vehicle-stat",
topics.getRealtime(), topics.getLocation()));
return defaults;
}
private KafkaSinkProperties.Binding binding(String groupId, String... topics) {
KafkaSinkProperties.Binding binding = new KafkaSinkProperties.Binding();
binding.setGroupId(groupId);
binding.setTopics(List.of(topics));
return binding;
}
private Map<String, EnvelopeConsumerProcessor> topicProcessors(List<String> topics, EnvelopeConsumerProcessor processor) {
Map<String, EnvelopeConsumerProcessor> byTopic = new LinkedHashMap<>();
for (String topic : topics) {
byTopic.put(topic, processor);
}
return byTopic;
}
private List<String> cleanTopics(List<String> topics) {
if (topics == null || topics.isEmpty()) {
return List.of();
}
LinkedHashSet<String> clean = new LinkedHashSet<>();
for (String topic : topics) {
if (topic != null && !topic.isBlank()) {
clean.add(topic);
}
}
return List.copyOf(clean);
}
private Properties consumerProperties(KafkaSinkProperties props,
KafkaSinkProperties.Binding binding,
String processorBeanName,
int workerIndex,
int concurrency) {
KafkaSinkProperties.Consumer consumer = props.getConsumer();
Properties p = new Properties();
p.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG, props.getBootstrapServers());
p.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class.getName());
p.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, ByteArrayDeserializer.class.getName());
p.put(ConsumerConfig.GROUP_ID_CONFIG, groupId(binding, processorBeanName));
p.put(ConsumerConfig.CLIENT_ID_CONFIG, clientId(consumer.getClientIdPrefix(), processorBeanName,
workerIndex, concurrency));
// 手动提交 offset只有本批次至少有一条记录被处理器接收后才 commit
// 避免轮询到空批次或未绑定 topic 时推进消费位点。
p.put(ConsumerConfig.ENABLE_AUTO_COMMIT_CONFIG, false);
p.put(ConsumerConfig.AUTO_OFFSET_RESET_CONFIG, consumer.getAutoOffsetReset());
p.put(ConsumerConfig.MAX_POLL_RECORDS_CONFIG, consumer.getMaxPollRecords());
p.put(ConsumerConfig.MAX_POLL_INTERVAL_MS_CONFIG, consumer.getMaxPollIntervalMillis());
return p;
}
private String clientId(String prefix, String processorBeanName, int workerIndex, int concurrency) {
String base = prefix + "-" + processorBeanName;
return concurrency <= 1 ? base : base + "-" + workerIndex;
}
private String groupId(KafkaSinkProperties.Binding binding, String processorBeanName) {
if (binding.getGroupId() != null && !binding.getGroupId().isBlank()) {
return binding.getGroupId();
}
return processorBeanName.replace("EnvelopeConsumerProcessor", "");
}
}

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package com.lingniu.ingest.sink.kafka;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.SmartLifecycle;
import java.time.Duration;
import java.util.List;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.function.Supplier;
public final class KafkaEnvelopeConsumerRunner implements SmartLifecycle, AutoCloseable {
private static final Logger log = LoggerFactory.getLogger(KafkaEnvelopeConsumerRunner.class);
private final Supplier<List<KafkaEnvelopeConsumerWorker>> workersSupplier;
private final Duration pollTimeout;
private final Duration loopBackoff;
private final boolean autoStartup;
private final AtomicBoolean running = new AtomicBoolean(false);
private final AtomicBoolean closed = new AtomicBoolean(false);
private volatile List<KafkaEnvelopeConsumerWorker> workers;
private ExecutorService executor;
public KafkaEnvelopeConsumerRunner(List<KafkaEnvelopeConsumerWorker> workers,
Duration pollTimeout,
Duration loopBackoff,
boolean autoStartup) {
if (workers == null || workers.isEmpty()) {
throw new IllegalArgumentException("workers must not be empty");
}
this.workersSupplier = () -> List.copyOf(workers);
this.workers = List.copyOf(workers);
this.pollTimeout = pollTimeout == null ? Duration.ofSeconds(1) : pollTimeout;
this.loopBackoff = loopBackoff == null ? Duration.ofSeconds(1) : loopBackoff;
this.autoStartup = autoStartup;
}
public KafkaEnvelopeConsumerRunner(Supplier<List<KafkaEnvelopeConsumerWorker>> workersSupplier,
Duration pollTimeout,
Duration loopBackoff,
boolean autoStartup) {
if (workersSupplier == null) {
throw new IllegalArgumentException("workersSupplier must not be null");
}
this.workersSupplier = workersSupplier;
this.pollTimeout = pollTimeout == null ? Duration.ofSeconds(1) : pollTimeout;
this.loopBackoff = loopBackoff == null ? Duration.ofSeconds(1) : loopBackoff;
this.autoStartup = autoStartup;
}
public List<KafkaEnvelopeConsumerWorker> workers() {
return workersOrCreate();
}
@Override
public void start() {
if (!running.compareAndSet(false, true)) {
return;
}
List<KafkaEnvelopeConsumerWorker> activeWorkers = workersOrCreate();
// 每个 worker 一条后台线程,避免某个处理器阻塞时拖慢其他消费组。
executor = Executors.newFixedThreadPool(activeWorkers.size(), r -> {
Thread thread = new Thread(r, "kafka-envelope-consumer");
thread.setDaemon(true);
return thread;
});
for (KafkaEnvelopeConsumerWorker worker : activeWorkers) {
executor.submit(() -> pollLoop(worker));
}
}
private List<KafkaEnvelopeConsumerWorker> workersOrCreate() {
List<KafkaEnvelopeConsumerWorker> current = workers;
if (current != null) {
return current;
}
synchronized (this) {
if (workers == null) {
List<KafkaEnvelopeConsumerWorker> created = workersSupplier.get();
if (created == null || created.isEmpty()) {
throw new IllegalStateException("no kafka envelope consumer workers created; check consumer bindings");
}
workers = List.copyOf(created);
}
return workers;
}
}
private void pollLoop(KafkaEnvelopeConsumerWorker worker) {
while (running.get()) {
try {
worker.pollOnce(pollTimeout);
} catch (RuntimeException ex) {
if (!running.get()) {
break;
}
// Kafka/处理器异常不让 Spring 生命周期退出;退避后继续消费,
// 具体坏消息由 EnvelopeConsumerProcessor 写入 DLQ。
log.warn("Kafka envelope consumer poll failed; the worker will retry after backoff", ex);
sleepBackoff();
}
}
}
private void sleepBackoff() {
try {
Thread.sleep(loopBackoff.toMillis());
} catch (InterruptedException ex) {
Thread.currentThread().interrupt();
}
}
@Override
public void stop() {
if (!running.compareAndSet(true, false)) {
return;
}
wakeupWorkers();
if (executor != null) {
executor.shutdown();
try {
if (!executor.awaitTermination(5, TimeUnit.SECONDS)) {
executor.shutdownNow();
executor.awaitTermination(5, TimeUnit.SECONDS);
}
} catch (InterruptedException ex) {
executor.shutdownNow();
Thread.currentThread().interrupt();
}
}
closeWorkers();
}
@Override
public void stop(Runnable callback) {
stop();
callback.run();
}
@Override
public boolean isRunning() {
return running.get();
}
@Override
public boolean isAutoStartup() {
return autoStartup;
}
@Override
public void close() {
stop();
closeWorkers();
}
private void closeWorkers() {
if (!closed.compareAndSet(false, true)) {
return;
}
List<KafkaEnvelopeConsumerWorker> current = workers;
if (current == null) {
return;
}
for (KafkaEnvelopeConsumerWorker worker : current) {
worker.close();
}
}
private void wakeupWorkers() {
List<KafkaEnvelopeConsumerWorker> current = workers;
if (current == null) {
return;
}
for (KafkaEnvelopeConsumerWorker worker : current) {
worker.wakeup();
}
}
}

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package com.lingniu.ingest.sink.kafka;
import com.lingniu.ingest.api.consumer.EnvelopeConsumerProcessor;
import com.lingniu.ingest.api.consumer.EnvelopeConsumerRecord;
import org.apache.kafka.clients.consumer.Consumer;
import org.apache.kafka.clients.consumer.ConsumerRecord;
import org.apache.kafka.clients.consumer.ConsumerRecords;
import java.time.Duration;
import java.util.ArrayList;
import java.util.Collection;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
public final class KafkaEnvelopeConsumerWorker implements AutoCloseable {
private final Consumer<String, byte[]> consumer;
private final Map<String, EnvelopeConsumerProcessor> processorsByTopic;
public KafkaEnvelopeConsumerWorker(Consumer<String, byte[]> consumer,
Map<String, EnvelopeConsumerProcessor> processorsByTopic) {
if (consumer == null) {
throw new IllegalArgumentException("consumer must not be null");
}
if (processorsByTopic == null || processorsByTopic.isEmpty()) {
throw new IllegalArgumentException("processorsByTopic must not be empty");
}
this.consumer = consumer;
this.processorsByTopic = Map.copyOf(processorsByTopic);
}
public void subscribe(Collection<String> topics) {
consumer.subscribe(topics);
}
public int pollOnce(Duration timeout) {
ConsumerRecords<String, byte[]> records = consumer.poll(timeout == null ? Duration.ZERO : timeout);
Map<EnvelopeConsumerProcessor, List<EnvelopeConsumerRecord>> byProcessor = new LinkedHashMap<>();
int processed = 0;
for (ConsumerRecord<String, byte[]> record : records) {
EnvelopeConsumerProcessor processor = processorsByTopic.get(record.topic());
if (processor == null) {
// worker 可能订阅多个 topic没有显式绑定处理器的 topic 不参与提交语义。
continue;
}
byProcessor.computeIfAbsent(processor, ignored -> new ArrayList<>()).add(new EnvelopeConsumerRecord(
record.topic(),
record.partition(),
record.offset(),
record.key(),
record.value()));
processed++;
}
for (Map.Entry<EnvelopeConsumerProcessor, List<EnvelopeConsumerRecord>> entry : byProcessor.entrySet()) {
// EnvelopeConsumerProcessor 内部会把解析或业务错误转成 DLQ 记录,
// 这里保持 Kafka worker 的职责单一:轮询、分发、成功后提交 offset。
entry.getKey().processBatch(entry.getValue());
}
if (processed > 0) {
// commitSync 放在批次末尾,保证同一个 poll 批次内的消息按 Kafka offset 一起确认。
consumer.commitSync();
}
return processed;
}
public void wakeup() {
consumer.wakeup();
}
@Override
public void close() {
consumer.close();
}
}

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package com.lingniu.ingest.sink.kafka;
import com.lingniu.ingest.api.consumer.EnvelopeDeadLetterRecord;
import com.lingniu.ingest.api.consumer.EnvelopeDeadLetterSink;
import org.apache.kafka.clients.producer.KafkaProducer;
import org.apache.kafka.clients.producer.Producer;
import org.apache.kafka.clients.producer.ProducerRecord;
import java.nio.charset.StandardCharsets;
public final class KafkaEnvelopeDeadLetterSink implements EnvelopeDeadLetterSink {
private final Producer<String, byte[]> producer;
private final String topic;
public KafkaEnvelopeDeadLetterSink(KafkaProducer<String, byte[]> producer, String topic) {
this((Producer<String, byte[]>) producer, topic);
}
KafkaEnvelopeDeadLetterSink(Producer<String, byte[]> producer, String topic) {
if (producer == null) {
throw new IllegalArgumentException("producer must not be null");
}
if (topic == null || topic.isBlank()) {
throw new IllegalArgumentException("topic must not be blank");
}
this.producer = producer;
this.topic = topic;
}
@Override
public void publish(EnvelopeDeadLetterRecord record) {
if (record == null) {
throw new IllegalArgumentException("record must not be null");
}
ProducerRecord<String, byte[]> out = new ProducerRecord<>(topic, record.key(), record.payload());
// DLQ payload 保持原始 Kafka value定位信息全部放 header便于后续重放或人工排查。
header(out, "dlq-service", record.service());
header(out, "dlq-source-topic", record.topic());
header(out, "dlq-source-partition", Integer.toString(record.partition()));
header(out, "dlq-source-offset", Long.toString(record.offset()));
header(out, "dlq-status", record.status().name());
header(out, "dlq-event-id", record.eventId());
header(out, "dlq-vin", record.vin());
header(out, "dlq-message", record.message());
header(out, "dlq-created-at", record.createdAt().toString());
producer.send(out);
}
private static void header(ProducerRecord<String, byte[]> record, String key, String value) {
record.headers().add(key, value.getBytes(StandardCharsets.UTF_8));
}
}

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package com.lingniu.ingest.sink.kafka;
import com.lingniu.ingest.api.event.VehicleEvent;
import com.lingniu.ingest.api.sink.EventSink;
import io.github.resilience4j.circuitbreaker.CircuitBreaker;
import org.apache.kafka.clients.producer.KafkaProducer;
import org.apache.kafka.clients.producer.ProducerRecord;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.concurrent.CompletableFuture;
/**
* Kafka Sink序列化为 Protobuf Envelope按 vin 分区,异步发送。
*
* <p>失败处理Resilience4j 熔断;熔断开启时事件转投 DLQ topic。
*/
public final class KafkaEventSink implements EventSink, AutoCloseable {
private static final Logger log = LoggerFactory.getLogger(KafkaEventSink.class);
private final KafkaProducer<String, byte[]> producer;
private final EnvelopeMapper mapper;
private final TopicRouter router;
private final String dlqTopic;
private final CircuitBreaker breaker;
public KafkaEventSink(KafkaProducer<String, byte[]> producer,
EnvelopeMapper mapper,
TopicRouter router,
String dlqTopic,
CircuitBreaker breaker) {
this.producer = producer;
this.mapper = mapper;
this.router = router;
this.dlqTopic = dlqTopic;
this.breaker = breaker;
}
@Override
public String name() {
return "kafka";
}
/**
* Split-service mode uses Kafka for both normalized events and raw archive records.
*/
@Override
public boolean accepts(VehicleEvent event) {
return true;
}
@Override
public CompletableFuture<Void> publish(VehicleEvent event) {
CompletableFuture<Void> cf = new CompletableFuture<>();
byte[] payload;
try {
payload = mapper.toEnvelope(event).toByteArray();
} catch (Exception e) {
log.error("envelope build failed eventId={} vin={}", event.eventId(), event.vin(), e);
cf.completeExceptionally(e);
return cf;
}
String topic = breaker.tryAcquirePermission() ? router.route(event) : dlqTopic;
ProducerRecord<String, byte[]> record = new ProducerRecord<>(topic, partitionKey(event), payload);
record.headers().add("event-id", event.eventId().getBytes());
record.headers().add("trace-id", event.traceId() == null ? new byte[0] : event.traceId().getBytes());
record.headers().add("source", event.source().name().getBytes());
producer.send(record, (metadata, ex) -> {
if (ex != null) {
breaker.onError(0, java.util.concurrent.TimeUnit.MILLISECONDS, ex);
cf.completeExceptionally(ex);
} else {
breaker.onSuccess(0, java.util.concurrent.TimeUnit.MILLISECONDS);
cf.complete(null);
}
});
return cf;
}
private static String partitionKey(VehicleEvent event) {
String vin = event.vin();
if (isKnown(vin)) {
return vin;
}
String vehicleKey = metadata(event, "vehicleKey");
if (!isKnown(vehicleKey)) {
vehicleKey = metadata(event, "vehicle_key");
}
if (isKnown(vehicleKey)) {
return "vehicleKey:" + vehicleKey;
}
String phone = metadata(event, "phone");
if (isKnown(phone)) {
return "phone:" + phone;
}
return vin == null || vin.isBlank() ? "unknown" : vin;
}
private static String metadata(VehicleEvent event, String key) {
if (event.metadata() == null) {
return "";
}
return event.metadata().getOrDefault(key, "").trim();
}
private static boolean isKnown(String value) {
return value != null && !value.isBlank() && !"unknown".equalsIgnoreCase(value.trim());
}
@Override
public void close() {
producer.flush();
producer.close();
}
}

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package com.lingniu.ingest.sink.kafka;
import io.github.resilience4j.circuitbreaker.CircuitBreaker;
import io.github.resilience4j.circuitbreaker.CircuitBreakerConfig;
import org.apache.kafka.clients.producer.KafkaProducer;
import org.apache.kafka.clients.producer.ProducerConfig;
import org.apache.kafka.common.serialization.ByteArraySerializer;
import org.apache.kafka.common.serialization.StringSerializer;
import org.springframework.boot.autoconfigure.AutoConfiguration;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Bean;
import java.time.Duration;
import java.util.Properties;
/**
* Kafka Sink 自动装配。
*
* <p>{@code lingniu.ingest.sink.kafka.enabled=false} 时本模块完全不装配Producer 和 Consumer
* 是两个独立开关,消费端还需要开启 {@code lingniu.ingest.sink.kafka.consumer.enabled=true}
* 并配置 bindings。
*/
@AutoConfiguration
@EnableConfigurationProperties(KafkaSinkProperties.class)
@ConditionalOnProperty(prefix = "lingniu.ingest.sink.kafka", name = "enabled", havingValue = "true", matchIfMissing = true)
public class KafkaSinkAutoConfiguration {
@Bean
@ConditionalOnMissingBean
public EnvelopeMapper envelopeMapper(KafkaSinkProperties props) {
return new EnvelopeMapper(props.getNodeId());
}
@Bean
@ConditionalOnMissingBean
public TopicRouter topicRouter(KafkaSinkProperties props) {
return new TopicRouter(props.getTopics());
}
@Bean
@ConditionalOnMissingBean
public CircuitBreaker kafkaSinkCircuitBreaker() {
return CircuitBreaker.of("kafka-sink", CircuitBreakerConfig.custom()
.slidingWindowSize(100)
.failureRateThreshold(50)
.waitDurationInOpenState(Duration.ofSeconds(10))
.permittedNumberOfCallsInHalfOpenState(10)
.build());
}
@Bean(destroyMethod = "close")
@ConditionalOnMissingBean
public KafkaProducer<String, byte[]> kafkaProducer(KafkaSinkProperties props) {
Properties p = new Properties();
p.put(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG, props.getBootstrapServers());
p.put(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, StringSerializer.class.getName());
p.put(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, ByteArraySerializer.class.getName());
p.put(ProducerConfig.COMPRESSION_TYPE_CONFIG, props.getCompressionType());
p.put(ProducerConfig.LINGER_MS_CONFIG, props.getLingerMs());
p.put(ProducerConfig.BATCH_SIZE_CONFIG, props.getBatchSize());
p.put(ProducerConfig.ACKS_CONFIG, props.getAcks());
p.put(ProducerConfig.ENABLE_IDEMPOTENCE_CONFIG, props.isEnableIdempotence());
return new KafkaProducer<>(p);
}
@Bean(destroyMethod = "close")
@ConditionalOnMissingBean
public KafkaEventSink kafkaEventSink(KafkaProducer<String, byte[]> producer,
EnvelopeMapper mapper,
TopicRouter router,
KafkaSinkProperties props,
CircuitBreaker breaker) {
// KafkaEventSink 是 EventBus 的生产端出口;它不会启动任何 Kafka 消费线程。
return new KafkaEventSink(producer, mapper, router, props.getTopics().getDlq(), breaker);
}
@Bean
@ConditionalOnMissingBean
public KafkaEnvelopeDeadLetterSink kafkaEnvelopeDeadLetterSink(KafkaProducer<String, byte[]> producer,
KafkaSinkProperties props) {
return new KafkaEnvelopeDeadLetterSink(producer, props.getTopics().getDlq());
}
}

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package com.lingniu.ingest.sink.kafka;
import com.lingniu.ingest.api.consumer.EnvelopeConsumerProcessor;
import org.springframework.beans.factory.ListableBeanFactory;
import org.springframework.boot.autoconfigure.AutoConfiguration;
import org.springframework.boot.autoconfigure.AutoConfigureAfter;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Bean;
import java.time.Duration;
import java.util.List;
import java.util.Map;
@AutoConfiguration(after = KafkaSinkAutoConfiguration.class)
@AutoConfigureAfter(name = {
"com.lingniu.ingest.eventhistory.config.EventHistoryAutoConfiguration",
"com.lingniu.ingest.vehiclestate.config.VehicleStateAutoConfiguration",
"com.lingniu.ingest.vehiclestat.config.VehicleStatAutoConfiguration"
})
@EnableConfigurationProperties(KafkaSinkProperties.class)
@ConditionalOnProperty(prefix = "lingniu.ingest.sink.kafka", name = "enabled", havingValue = "true", matchIfMissing = true)
public class KafkaSinkConsumerAutoConfiguration {
@Bean
@ConditionalOnMissingBean
public KafkaEnvelopeConsumerFactory kafkaEnvelopeConsumerFactory() {
return new KafkaEnvelopeConsumerFactory();
}
@Bean
@ConditionalOnMissingBean
@ConditionalOnProperty(prefix = "lingniu.ingest.sink.kafka.consumer", name = "enabled", havingValue = "true")
public KafkaEnvelopeConsumerRunner kafkaEnvelopeConsumerRunner(ListableBeanFactory beanFactory,
KafkaEnvelopeConsumerFactory consumerFactory,
KafkaSinkProperties props) {
return new KafkaEnvelopeConsumerRunner(
() -> createWorkers(beanFactory, consumerFactory, props),
Duration.ofMillis(props.getConsumer().getPollTimeoutMillis()),
Duration.ofMillis(props.getConsumer().getLoopBackoffMillis()),
props.getConsumer().isAutoStartup());
}
private List<KafkaEnvelopeConsumerWorker> createWorkers(ListableBeanFactory beanFactory,
KafkaEnvelopeConsumerFactory consumerFactory,
KafkaSinkProperties props) {
Map<String, EnvelopeConsumerProcessor> processors = beanFactory.getBeansOfType(EnvelopeConsumerProcessor.class);
return consumerFactory.createWorkers(processors, props);
}
}

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package com.lingniu.ingest.sink.kafka;
import org.springframework.boot.context.properties.ConfigurationProperties;
import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
@ConfigurationProperties(prefix = "lingniu.ingest.sink.kafka")
public class KafkaSinkProperties {
/**
* Kafka Sink 总开关。默认 {@code true}。
* 设为 {@code false} 时 {@link KafkaSinkAutoConfiguration} 完全不装配任何 BeanKafka Producer、
* EnvelopeMapper、TopicRouter、KafkaEventSink 都不会创建ingest-core 的 DisruptorEventBus
* 仍然正常运行但没有外部 sink事件落地到 sink-archive 或 Noop 吞掉)。
*/
private boolean enabled = true;
/** Kafka bootstrap servers生产环境应通过环境变量覆盖不建议使用默认开发地址。 */
private String bootstrapServers = "114.55.58.251:9092";
private String compressionType = "zstd";
private int lingerMs = 20;
private int batchSize = 65536;
private String acks = "all";
private boolean enableIdempotence = true;
/** 写入 envelope 的节点标识,进入 Protobuf 字段 ingest_node_id便于追踪多实例来源。 */
private String nodeId = "ingest-local";
private Topics topics = new Topics();
private Consumer consumer = new Consumer();
public boolean isEnabled() { return enabled; }
public void setEnabled(boolean enabled) { this.enabled = enabled; }
public String getBootstrapServers() { return bootstrapServers; }
public void setBootstrapServers(String bootstrapServers) { this.bootstrapServers = bootstrapServers; }
public String getCompressionType() { return compressionType; }
public void setCompressionType(String compressionType) { this.compressionType = compressionType; }
public int getLingerMs() { return lingerMs; }
public void setLingerMs(int lingerMs) { this.lingerMs = lingerMs; }
public int getBatchSize() { return batchSize; }
public void setBatchSize(int batchSize) { this.batchSize = batchSize; }
public String getAcks() { return acks; }
public void setAcks(String acks) { this.acks = acks; }
public boolean isEnableIdempotence() { return enableIdempotence; }
public void setEnableIdempotence(boolean enableIdempotence) { this.enableIdempotence = enableIdempotence; }
public String getNodeId() { return nodeId; }
public void setNodeId(String nodeId) { this.nodeId = nodeId; }
public Topics getTopics() { return topics; }
public void setTopics(Topics topics) { this.topics = topics; }
public Consumer getConsumer() { return consumer; }
public void setConsumer(Consumer consumer) { this.consumer = consumer; }
public static class Topics {
/** 实时遥测事件 topicGB32960 RAW-only 架构下可逐步弱化该 topic。 */
private String realtime = "vehicle.event.gb32960.v1";
/** 位置事件 topic通常可由 realtime/RAW 派生。 */
private String location = "vehicle.event.gb32960.v1";
private String alarm = "vehicle.event.gb32960.v1";
private String session = "vehicle.event.gb32960.v1";
private String mediaMeta = "vehicle.media.meta.v1";
/** RAW 归档引用 topicpayload 应携带 archive URI/size不建议携带完整 raw bytes。 */
private String rawArchive = "vehicle.raw.gb32960.v1";
/** producer 熔断或 consumer 处理失败时的死信 topic。 */
private String dlq = "vehicle.dlq.gb32960.v1";
public String getRealtime() { return realtime; }
public void setRealtime(String realtime) { this.realtime = realtime; }
public String getLocation() { return location; }
public void setLocation(String location) { this.location = location; }
public String getAlarm() { return alarm; }
public void setAlarm(String alarm) { this.alarm = alarm; }
public String getSession() { return session; }
public void setSession(String session) { this.session = session; }
public String getMediaMeta() { return mediaMeta; }
public void setMediaMeta(String mediaMeta) { this.mediaMeta = mediaMeta; }
public String getRawArchive() { return rawArchive; }
public void setRawArchive(String rawArchive) { this.rawArchive = rawArchive; }
public String getDlq() { return dlq; }
public void setDlq(String dlq) { this.dlq = dlq; }
}
public static class Consumer {
/** Kafka 消费总开关。与 producer 总开关分离,默认 false避免单体服务意外自消费。 */
private boolean enabled = false;
private boolean autoStartup = true;
private String clientIdPrefix = "lingniu-envelope-consumer";
private int pollTimeoutMillis = 1000;
private int loopBackoffMillis = 1000;
private String autoOffsetReset = "earliest";
private int maxPollRecords = 500;
private int maxPollIntervalMillis = 1800000;
private int concurrency = 1;
/**
* Processor bean name -> Kafka binding。
*
* <p>示例 key{@code eventHistoryEnvelopeConsumerProcessor}、
* {@code vehicleStateEnvelopeConsumerProcessor}、{@code vehicleStatEnvelopeConsumerProcessor}。
*/
private Map<String, Binding> bindings = new LinkedHashMap<>();
public boolean isEnabled() { return enabled; }
public void setEnabled(boolean enabled) { this.enabled = enabled; }
public boolean isAutoStartup() { return autoStartup; }
public void setAutoStartup(boolean autoStartup) { this.autoStartup = autoStartup; }
public String getClientIdPrefix() { return clientIdPrefix; }
public void setClientIdPrefix(String clientIdPrefix) { this.clientIdPrefix = clientIdPrefix; }
public int getPollTimeoutMillis() { return pollTimeoutMillis; }
public void setPollTimeoutMillis(int pollTimeoutMillis) { this.pollTimeoutMillis = pollTimeoutMillis; }
public int getLoopBackoffMillis() { return loopBackoffMillis; }
public void setLoopBackoffMillis(int loopBackoffMillis) { this.loopBackoffMillis = loopBackoffMillis; }
public String getAutoOffsetReset() { return autoOffsetReset; }
public void setAutoOffsetReset(String autoOffsetReset) { this.autoOffsetReset = autoOffsetReset; }
public int getMaxPollRecords() { return maxPollRecords; }
public void setMaxPollRecords(int maxPollRecords) { this.maxPollRecords = maxPollRecords; }
public int getMaxPollIntervalMillis() { return maxPollIntervalMillis; }
public void setMaxPollIntervalMillis(int maxPollIntervalMillis) { this.maxPollIntervalMillis = maxPollIntervalMillis; }
public int getConcurrency() { return concurrency; }
public void setConcurrency(int concurrency) { this.concurrency = concurrency; }
public Map<String, Binding> getBindings() { return bindings; }
public void setBindings(Map<String, Binding> bindings) { this.bindings = bindings; }
}
public static class Binding {
/** 单个 processor binding 开关,用于临时停某个下游消费者而不关整个 consumer runner。 */
private boolean enabled = true;
/** Kafka consumer group id。不同服务要独立消费同一 topic 时必须使用不同 group。 */
private String groupId;
/** 该 processor 订阅的 topic 列表。 */
private List<String> topics = new ArrayList<>();
public boolean isEnabled() { return enabled; }
public void setEnabled(boolean enabled) { this.enabled = enabled; }
public String getGroupId() { return groupId; }
public void setGroupId(String groupId) { this.groupId = groupId; }
public List<String> getTopics() { return topics; }
public void setTopics(List<String> topics) { this.topics = topics; }
}
}

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package com.lingniu.ingest.sink.kafka;
import com.lingniu.ingest.api.event.VehicleEvent;
/**
* 事件 → Kafka topic 路由。集中管理避免散落。
*/
public final class TopicRouter {
private final KafkaSinkProperties.Topics topics;
public TopicRouter(KafkaSinkProperties.Topics topics) {
this.topics = topics;
}
public String route(VehicleEvent event) {
return switch (event) {
case VehicleEvent.Realtime _ -> topics.getRealtime();
case VehicleEvent.Location _ -> topics.getLocation();
case VehicleEvent.Alarm _ -> topics.getAlarm();
case VehicleEvent.Login _,
VehicleEvent.Logout _,
VehicleEvent.Heartbeat _ -> topics.getSession();
case VehicleEvent.MediaMeta _ -> topics.getMediaMeta();
case VehicleEvent.Passthrough _ -> topics.getAlarm();
case VehicleEvent.RawArchive _ -> topics.getRawArchive();
};
}
}

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syntax = "proto3";
package com.lingniu.ingest.sink.kafka.proto;
option java_multiple_files = true;
option java_package = "com.lingniu.ingest.sink.kafka.proto";
option java_outer_classname = "VehicleEnvelopeProto";
// 统一消息外壳:所有 Topic 共用此 Envelopepayload 通过 oneof 区分具体事件类型。
message VehicleEnvelope {
string schema_version = 1;
string event_id = 2;
string trace_id = 3;
string vin = 4;
string source = 5; // ProtocolId 字符串形式
string protocol_version = 6;
int64 event_time_ms = 7;
int64 ingest_time_ms = 8;
string ingest_node_id = 9;
map<string, string> metadata = 10;
oneof payload {
RealtimePayload realtime = 20;
LocationPayload location = 21;
AlarmPayload alarm = 22;
LoginPayload login = 23;
LogoutPayload logout = 24;
HeartbeatPayload heartbeat = 25;
MediaMetaPayload media_meta = 26;
PassthroughPayload passthrough = 27;
}
// 可选:原始字节指针
RawArchiveRef raw_archive = 40;
// 全字段内部遥测快照。新下游消费者优先读取这里,避免依赖协议字段名。
TelemetrySnapshot telemetry_snapshot = 50;
// 新一代事实模型RAW 帧索引与解析事实,均不携带完整 raw bytes。
RawFrameFactPayload raw_frame_fact = 60;
DecodedFactPayload decoded_fact = 61;
}
message RawArchiveRef {
string uri = 1;
string checksum = 2;
int64 size_bytes = 3;
string parsed_json = 4;
}
message TelemetrySnapshot {
string event_type = 1;
string raw_archive_uri = 2;
repeated TelemetryField fields = 3;
}
message TelemetryField {
string key = 1;
string value_type = 2;
string value = 3;
string unit = 4;
string quality = 5;
string source_path = 6;
}
enum ParseStatusProto {
PARSE_STATUS_UNSPECIFIED = 0;
PARSE_STATUS_NOT_PARSED = 1;
PARSE_STATUS_SUCCEEDED = 2;
PARSE_STATUS_FAILED = 3;
}
message RawFrameFactPayload {
string frame_id = 1;
string vehicle_key = 2;
string vin = 3;
string phone = 4;
int32 message_id = 5;
int32 sub_type = 6;
string raw_uri = 7;
string checksum = 8;
int64 raw_size_bytes = 9;
ParseStatusProto parse_status = 10;
string parse_error = 11;
string peer = 12;
map<string, string> metadata = 13;
}
message DecodedFactPayload {
string fact_id = 1;
string frame_id = 2;
string fact_type = 3;
string vehicle_key = 4;
string vin = 5;
string phone = 6;
string raw_uri = 7;
map<string, string> fields = 8;
map<string, string> metadata = 9;
}
message RealtimePayload {
optional double speed_kmh = 1;
optional double total_mileage_km = 2;
optional double battery_soc = 3;
optional double battery_voltage_v = 4;
optional double battery_current_a = 5;
optional double fc_voltage_v = 6;
optional double fc_current_a = 7;
optional double fc_temp_c = 8;
optional double hydrogen_remaining_kg = 9;
optional double hydrogen_high_pressure_mpa = 10;
optional double hydrogen_low_pressure_mpa = 11;
optional string vehicle_state = 12;
optional string charging_state = 13;
optional string running_mode = 14;
optional int32 gear_level = 15;
optional double accelerator_pedal = 16;
optional double brake_pedal = 17;
optional double longitude = 18;
optional double latitude = 19;
optional double altitude_m = 20;
optional double direction_deg = 21;
optional double ambient_temp_c = 22;
optional double coolant_temp_c = 23;
}
message LocationPayload {
double longitude = 1;
double latitude = 2;
double altitude_m = 3;
double speed_kmh = 4;
double direction_deg = 5;
int64 alarm_flag = 6;
int64 status_flag = 7;
}
message AlarmPayload {
string level = 1;
int32 alarm_type_code = 2;
string alarm_type_name = 3;
repeated string fault_codes = 4;
optional double longitude = 5;
optional double latitude = 6;
// 通用报警标志位2016 版 0~15 / 2025 版 0~27对照 GB/T 32960.3 表 24。
// 例SOC_LOW / BATTERY_HIGH_TEMP / HYDROGEN_LEAK
repeated string active_bits = 7;
}
message LoginPayload {
string iccid = 1;
string protocol_version = 2;
}
message LogoutPayload {}
message HeartbeatPayload {}
message MediaMetaPayload {
string media_id = 1;
string media_type = 2;
int64 size_bytes = 3;
string archive_ref = 4;
}
message PassthroughPayload {
int32 passthrough_type = 1;
bytes data = 2;
}

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com.lingniu.ingest.sink.kafka.KafkaSinkAutoConfiguration
com.lingniu.ingest.sink.kafka.KafkaSinkConsumerAutoConfiguration

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package com.lingniu.ingest.sink.kafka;
import com.lingniu.ingest.api.ProtocolId;
import com.lingniu.ingest.api.event.RawArchiveKeys;
import com.lingniu.ingest.api.event.RealtimePayload;
import com.lingniu.ingest.api.event.VehicleEvent;
import com.lingniu.ingest.sink.kafka.proto.VehicleEnvelope;
import org.junit.jupiter.api.Test;
import java.time.Instant;
import java.util.Map;
import static org.assertj.core.api.Assertions.assertThat;
class EnvelopeMapperTelemetrySnapshotTest {
@Test
void mapsVehicleEventToFullFieldTelemetrySnapshot() {
VehicleEvent.Realtime event = new VehicleEvent.Realtime(
"event-1",
"VIN001",
ProtocolId.GB32960,
Instant.parse("2026-06-22T08:00:00Z"),
Instant.parse("2026-06-22T08:00:01Z"),
"trace-1",
Map.of("protocolVersion", "V2016", "rawArchiveUri", "archive://raw/event-1.bin"),
new RealtimePayload(
80.5,
12345.6,
55.0,
610.0,
-20.5,
null,
null,
null,
8.2,
35.0,
null,
RealtimePayload.VehicleState.STARTED,
RealtimePayload.ChargingState.UNCHARGED,
RealtimePayload.RunningMode.FUEL,
3,
null,
null,
113.12,
23.45,
null,
null,
null,
null
)
);
VehicleEnvelope envelope = new EnvelopeMapper("node-1").toEnvelope(event);
assertThat(envelope.getTelemetrySnapshot().getEventType()).isEqualTo("REALTIME");
assertThat(envelope.getTelemetrySnapshot().getRawArchiveUri()).isEqualTo("archive://raw/event-1.bin");
assertThat(envelope.getTelemetrySnapshot().getFieldsList())
.anySatisfy(field -> {
assertThat(field.getKey()).isEqualTo("total_mileage_km");
assertThat(field.getValueType()).isEqualTo("DOUBLE");
assertThat(field.getValue()).isEqualTo("12345.6");
assertThat(field.getUnit()).isEqualTo("km");
})
.anySatisfy(field -> {
assertThat(field.getKey()).isEqualTo("hydrogen_high_pressure_mpa");
assertThat(field.getValue()).isEqualTo("35.0");
assertThat(field.getUnit()).isEqualTo("MPa");
});
}
@Test
void rawArchiveEnvelopeCarriesLogicalArchiveUri() {
VehicleEvent.RawArchive raw = new VehicleEvent.RawArchive(
"raw-808-1",
"VIN-JT808-001",
ProtocolId.JT808,
Instant.parse("2026-06-22T08:00:00Z"),
Instant.parse("2026-06-22T08:00:01Z"),
"trace-raw-1",
Map.of(),
0x0200,
0,
new byte[]{0x7e, 0x02, 0x00, 0x7e});
VehicleEnvelope envelope = new EnvelopeMapper("node-1").toEnvelope(raw);
String key = RawArchiveKeys.key(raw);
assertThat(envelope.hasRawArchive()).isTrue();
assertThat(envelope.getRawArchive().getUri()).isEqualTo(RawArchiveKeys.logicalUri(key));
assertThat(envelope.getRawArchive().getSizeBytes()).isEqualTo(4);
assertThat(envelope.getMetadataMap()).containsEntry(RawArchiveKeys.META_URI, RawArchiveKeys.logicalUri(key));
assertThat(envelope.hasRawFrameFact()).isTrue();
assertThat(envelope.getRawFrameFact().getFrameId()).startsWith("rf_");
assertThat(envelope.getRawFrameFact().getVehicleKey()).isEqualTo("VIN-JT808-001");
assertThat(envelope.getRawFrameFact().getVin()).isEqualTo("VIN-JT808-001");
assertThat(envelope.getRawFrameFact().getMessageId()).isEqualTo(0x0200);
assertThat(envelope.getRawFrameFact().getRawUri()).isEqualTo(RawArchiveKeys.logicalUri(key));
assertThat(envelope.getRawFrameFact().getRawSizeBytes()).isEqualTo(4);
assertThat(envelope.getRawFrameFact().getChecksum()).startsWith("sha256:");
}
}

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package com.lingniu.ingest.sink.kafka;
import com.lingniu.ingest.api.consumer.EnvelopeConsumerProcessor;
import com.lingniu.ingest.api.consumer.EnvelopeIngestResult;
import org.apache.kafka.clients.consumer.ConsumerConfig;
import org.apache.kafka.clients.consumer.MockConsumer;
import org.apache.kafka.clients.consumer.OffsetResetStrategy;
import org.junit.jupiter.api.Test;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import static org.assertj.core.api.Assertions.assertThat;
class KafkaEnvelopeConsumerFactoryTest {
@Test
void createsDefaultIndependentConsumersForKnownServiceProcessors() {
List<Properties> created = new ArrayList<>();
KafkaEnvelopeConsumerFactory factory = new KafkaEnvelopeConsumerFactory(props -> {
created.add(props);
return new MockConsumer<>(OffsetResetStrategy.EARLIEST);
});
KafkaSinkProperties props = new KafkaSinkProperties();
props.setBootstrapServers("kafka-1:9092");
EnvelopeConsumerProcessor stateProcessor = processor();
EnvelopeConsumerProcessor statProcessor = processor();
List<KafkaEnvelopeConsumerWorker> workers = factory.createWorkers(Map.of(
"vehicleStateEnvelopeConsumerProcessor", stateProcessor,
"vehicleStatEnvelopeConsumerProcessor", statProcessor), props);
assertThat(workers).hasSize(2);
assertThat(created)
.extracting(p -> p.getProperty(ConsumerConfig.GROUP_ID_CONFIG))
.containsExactly("vehicle-state", "vehicle-stat");
assertThat(created)
.allSatisfy(p -> {
assertThat(p.getProperty(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG)).isEqualTo("kafka-1:9092");
assertThat(p.get(ConsumerConfig.ENABLE_AUTO_COMMIT_CONFIG)).isEqualTo(false);
assertThat(p.get(ConsumerConfig.MAX_POLL_INTERVAL_MS_CONFIG)).isEqualTo(1800000);
});
}
@Test
void createsParallelConsumersForEachBindingWhenConsumerConcurrencyIsConfigured() {
List<Properties> created = new ArrayList<>();
KafkaEnvelopeConsumerFactory factory = new KafkaEnvelopeConsumerFactory(props -> {
created.add(props);
return new MockConsumer<>(OffsetResetStrategy.EARLIEST);
});
KafkaSinkProperties props = new KafkaSinkProperties();
props.getConsumer().setConcurrency(3);
EnvelopeConsumerProcessor stateProcessor = processor();
List<KafkaEnvelopeConsumerWorker> workers = factory.createWorkers(Map.of(
"vehicleStateEnvelopeConsumerProcessor", stateProcessor), props);
assertThat(workers).hasSize(3);
assertThat(created)
.extracting(p -> p.getProperty(ConsumerConfig.GROUP_ID_CONFIG))
.containsExactly("vehicle-state", "vehicle-state", "vehicle-state");
assertThat(created)
.extracting(p -> p.getProperty(ConsumerConfig.CLIENT_ID_CONFIG))
.containsExactly(
"lingniu-envelope-consumer-vehicleStateEnvelopeConsumerProcessor-0",
"lingniu-envelope-consumer-vehicleStateEnvelopeConsumerProcessor-1",
"lingniu-envelope-consumer-vehicleStateEnvelopeConsumerProcessor-2");
}
private EnvelopeConsumerProcessor processor() {
return new EnvelopeConsumerProcessor(
"service",
bytes -> EnvelopeIngestResult.processed("evt-1", "VIN001"),
record -> {});
}
}

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package com.lingniu.ingest.sink.kafka;
import org.junit.jupiter.api.Test;
import java.time.Duration;
import java.util.List;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import static org.assertj.core.api.Assertions.assertThat;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.doAnswer;
import static org.mockito.Mockito.mock;
class KafkaEnvelopeConsumerRunnerTest {
@Test
void stopWakesPollLoopAndClosesWorkerAfterPollThreadExits() throws Exception {
KafkaEnvelopeConsumerWorker worker = mock(KafkaEnvelopeConsumerWorker.class);
CountDownLatch pollEntered = new CountDownLatch(1);
CountDownLatch wakeupCalled = new CountDownLatch(1);
CountDownLatch pollReturned = new CountDownLatch(1);
CountDownLatch closeCalled = new CountDownLatch(1);
doAnswer(invocation -> {
pollEntered.countDown();
assertThat(wakeupCalled.await(1, TimeUnit.SECONDS)).isTrue();
pollReturned.countDown();
return 0;
}).when(worker).pollOnce(any());
doAnswer(invocation -> {
wakeupCalled.countDown();
return null;
}).when(worker).wakeup();
doAnswer(invocation -> {
assertThat(pollReturned.getCount()).isZero();
closeCalled.countDown();
return null;
}).when(worker).close();
KafkaEnvelopeConsumerRunner runner = new KafkaEnvelopeConsumerRunner(
List.of(worker),
Duration.ofSeconds(30),
Duration.ofMillis(1),
false);
runner.start();
assertThat(pollEntered.await(1, TimeUnit.SECONDS)).isTrue();
runner.stop();
assertThat(wakeupCalled.getCount()).isZero();
assertThat(closeCalled.getCount()).isZero();
}
}

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package com.lingniu.ingest.sink.kafka;
import com.lingniu.ingest.api.consumer.EnvelopeConsumerRecord;
import com.lingniu.ingest.api.consumer.EnvelopeBatchIngestor;
import com.lingniu.ingest.api.consumer.EnvelopeConsumerProcessor;
import com.lingniu.ingest.api.consumer.EnvelopeDeadLetterRecord;
import com.lingniu.ingest.api.consumer.EnvelopeIngestResult;
import org.apache.kafka.clients.consumer.ConsumerRecord;
import org.apache.kafka.clients.consumer.MockConsumer;
import org.apache.kafka.clients.consumer.OffsetResetStrategy;
import org.apache.kafka.common.TopicPartition;
import org.junit.jupiter.api.Test;
import java.time.Duration;
import java.util.List;
import java.util.Map;
import java.util.concurrent.atomic.AtomicReference;
import java.util.concurrent.atomic.AtomicInteger;
import static org.assertj.core.api.Assertions.assertThat;
class KafkaEnvelopeConsumerWorkerTest {
@Test
void pollsKafkaRecordsAndDispatchesThemToConfiguredTopicProcessor() {
MockConsumer<String, byte[]> consumer = new MockConsumer<>(OffsetResetStrategy.EARLIEST);
TopicPartition partition = new TopicPartition("vehicle.realtime", 0);
consumer.assign(List.of(partition));
consumer.updateBeginningOffsets(Map.of(partition, 0L));
consumer.addRecord(new ConsumerRecord<>("vehicle.realtime", 0, 12L, "VIN001", new byte[]{0x01, 0x02}));
AtomicReference<EnvelopeDeadLetterRecord> captured = new AtomicReference<>();
EnvelopeConsumerProcessor processor = new EnvelopeConsumerProcessor(
"vehicle-state",
bytes -> EnvelopeIngestResult.invalid("bad envelope"),
captured::set);
int processed = new KafkaEnvelopeConsumerWorker(
consumer, Map.of("vehicle.realtime", processor)).pollOnce(Duration.ZERO);
assertThat(processed).isEqualTo(1);
assertThat(captured.get()).satisfies(record -> {
assertThat(record.topic()).isEqualTo("vehicle.realtime");
assertThat(record.partition()).isEqualTo(0);
assertThat(record.offset()).isEqualTo(12L);
assertThat(record.key()).isEqualTo("VIN001");
assertThat(record.payload()).containsExactly(0x01, 0x02);
});
}
@Test
void pollsKafkaRecordsAndDispatchesBatchWhenProcessorSupportsIt() {
MockConsumer<String, byte[]> consumer = new MockConsumer<>(OffsetResetStrategy.EARLIEST);
TopicPartition partition = new TopicPartition("vehicle.raw", 0);
consumer.assign(List.of(partition));
consumer.updateBeginningOffsets(Map.of(partition, 0L));
consumer.addRecord(new ConsumerRecord<>("vehicle.raw", 0, 12L, "VIN001", new byte[]{0x01}));
consumer.addRecord(new ConsumerRecord<>("vehicle.raw", 0, 13L, "VIN002", new byte[]{0x02}));
AtomicInteger batchCalls = new AtomicInteger();
EnvelopeConsumerProcessor processor = new EnvelopeConsumerProcessor(
"event-history",
new EnvelopeBatchIngestor() {
@Override
public EnvelopeIngestResult tryIngest(byte[] kafkaValue) {
throw new AssertionError("single-record ingest should not be used for a batch-capable processor");
}
@Override
public List<EnvelopeIngestResult> tryIngestAll(List<byte[]> kafkaValues) {
batchCalls.incrementAndGet();
assertThat(kafkaValues).hasSize(2);
return List.of(
EnvelopeIngestResult.stored("event-1", "VIN001"),
EnvelopeIngestResult.invalid("bad envelope"));
}
},
record -> {});
int processed = new KafkaEnvelopeConsumerWorker(
consumer, Map.of("vehicle.raw", processor)).pollOnce(Duration.ZERO);
assertThat(processed).isEqualTo(2);
assertThat(batchCalls).hasValue(1);
}
}

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package com.lingniu.ingest.sink.kafka;
import com.lingniu.ingest.api.consumer.EnvelopeDeadLetterRecord;
import com.lingniu.ingest.api.consumer.EnvelopeIngestResult;
import org.apache.kafka.clients.producer.MockProducer;
import org.apache.kafka.clients.producer.ProducerRecord;
import org.apache.kafka.common.serialization.ByteArraySerializer;
import org.apache.kafka.common.serialization.StringSerializer;
import org.junit.jupiter.api.Test;
import java.nio.charset.StandardCharsets;
import java.time.Instant;
import static org.assertj.core.api.Assertions.assertThat;
class KafkaEnvelopeDeadLetterSinkTest {
@Test
void publishesDeadLetterRecordToConfiguredDlqTopicWithDiagnosticHeaders() {
MockProducer<String, byte[]> producer = new MockProducer<>(
true, new StringSerializer(), new ByteArraySerializer());
KafkaEnvelopeDeadLetterSink sink = new KafkaEnvelopeDeadLetterSink(producer, "vehicle.consumer.dlq");
EnvelopeDeadLetterRecord record = new EnvelopeDeadLetterRecord(
"event-history",
"vehicle.realtime",
3,
99L,
"VIN001",
EnvelopeIngestResult.Status.INVALID_ENVELOPE,
"",
"",
"VehicleEnvelope bytes are invalid",
new byte[]{0x01, 0x02},
Instant.parse("2026-06-22T08:00:00Z"));
sink.publish(record);
assertThat(producer.history()).hasSize(1);
ProducerRecord<String, byte[]> sent = producer.history().getFirst();
assertThat(sent.topic()).isEqualTo("vehicle.consumer.dlq");
assertThat(sent.key()).isEqualTo("VIN001");
assertThat(sent.value()).containsExactly(0x01, 0x02);
assertThat(header(sent, "dlq-service")).isEqualTo("event-history");
assertThat(header(sent, "dlq-source-topic")).isEqualTo("vehicle.realtime");
assertThat(header(sent, "dlq-source-partition")).isEqualTo("3");
assertThat(header(sent, "dlq-source-offset")).isEqualTo("99");
assertThat(header(sent, "dlq-status")).isEqualTo("INVALID_ENVELOPE");
assertThat(header(sent, "dlq-message")).isEqualTo("VehicleEnvelope bytes are invalid");
}
private static String header(ProducerRecord<String, byte[]> record, String key) {
return new String(record.headers().lastHeader(key).value(), StandardCharsets.UTF_8);
}
}

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package com.lingniu.ingest.sink.kafka;
import com.lingniu.ingest.api.ProtocolId;
import com.lingniu.ingest.api.event.LocationPayload;
import com.lingniu.ingest.api.event.VehicleEvent;
import io.github.resilience4j.circuitbreaker.CircuitBreaker;
import org.apache.kafka.clients.producer.Callback;
import org.apache.kafka.clients.producer.KafkaProducer;
import org.apache.kafka.clients.producer.ProducerRecord;
import org.junit.jupiter.api.Test;
import org.mockito.ArgumentCaptor;
import java.time.Instant;
import java.util.Map;
import java.util.concurrent.CompletableFuture;
import static org.assertj.core.api.Assertions.assertThat;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
class KafkaEventSinkTest {
@Test
void acceptsRawArchiveRecordsForSplitServiceKafkaBoundary() {
KafkaEventSink sink = new KafkaEventSink(
null,
new EnvelopeMapper("node-1"),
new TopicRouter(new KafkaSinkProperties.Topics()),
"vehicle.dlq.gb32960.v1",
CircuitBreaker.ofDefaults("kafka-test"));
assertThat(sink.accepts(rawArchive())).isTrue();
}
@Test
void usesPhoneAsKafkaKeyWhenVinIsUnknown() {
@SuppressWarnings("unchecked")
KafkaProducer<String, byte[]> producer = mock(KafkaProducer.class);
@SuppressWarnings("unchecked")
ArgumentCaptor<ProducerRecord<String, byte[]>> sent = ArgumentCaptor.forClass(ProducerRecord.class);
when(producer.send(sent.capture(), any())).thenAnswer(invocation -> {
invocation.<Callback>getArgument(1).onCompletion(null, null);
return CompletableFuture.completedFuture(null);
});
KafkaEventSink sink = new KafkaEventSink(
producer,
new EnvelopeMapper("node-1"),
new TopicRouter(new KafkaSinkProperties.Topics()),
"vehicle.dlq.gb32960.v1",
CircuitBreaker.ofDefaults("kafka-test"));
sink.publish(jt808Location()).join();
assertThat(sent.getValue().key()).isEqualTo("phone:13079979000");
}
private static VehicleEvent.RawArchive rawArchive() {
return new VehicleEvent.RawArchive(
"raw-1",
"VIN001",
ProtocolId.GB32960,
Instant.parse("2026-06-23T07:00:00Z"),
Instant.parse("2026-06-23T07:00:01Z"),
"trace-raw-1",
Map.of("platformAccount", "Hyundai"),
0x02,
0,
new byte[] {0x23, 0x23});
}
private static VehicleEvent.Location jt808Location() {
return new VehicleEvent.Location(
"loc-1",
"unknown",
ProtocolId.JT808,
Instant.parse("2026-06-29T11:22:00Z"),
Instant.parse("2026-06-29T11:22:01Z"),
"trace-loc-1",
Map.of("phone", "13079979000"),
new LocationPayload(121.1, 31.2, 8.0, 40.0, 90.0, 0L, 1L, null));
}
}

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package com.lingniu.ingest.sink.kafka;
import com.lingniu.ingest.api.consumer.EnvelopeConsumerProcessor;
import com.lingniu.ingest.api.consumer.EnvelopeIngestResult;
import org.apache.kafka.clients.consumer.MockConsumer;
import org.apache.kafka.clients.consumer.OffsetResetStrategy;
import org.apache.kafka.clients.producer.KafkaProducer;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.springframework.boot.test.context.runner.ApplicationContextRunner;
import org.springframework.boot.test.system.CapturedOutput;
import org.springframework.boot.test.system.OutputCaptureExtension;
import static org.assertj.core.api.Assertions.assertThat;
import static org.mockito.Mockito.mock;
@ExtendWith(OutputCaptureExtension.class)
class KafkaSinkConsumerAutoConfigurationTest {
private final ApplicationContextRunner contextRunner = new ApplicationContextRunner()
.withUserConfiguration(KafkaSinkAutoConfiguration.class, KafkaSinkConsumerAutoConfiguration.class)
.withAllowBeanDefinitionOverriding(true)
.withBean("vehicleStateEnvelopeConsumerProcessor", EnvelopeConsumerProcessor.class,
() -> new EnvelopeConsumerProcessor(
"vehicle-state",
bytes -> EnvelopeIngestResult.processed("evt-1", "VIN001"),
record -> {}))
.withBean("kafkaProducer", KafkaProducer.class, KafkaSinkConsumerAutoConfigurationTest::kafkaProducer)
.withBean(KafkaEnvelopeConsumerFactory.class,
() -> new KafkaEnvelopeConsumerFactory(props -> new MockConsumer<>(OffsetResetStrategy.EARLIEST)))
.withPropertyValues(
"lingniu.ingest.sink.kafka.enabled=true",
"lingniu.ingest.sink.kafka.consumer.enabled=true",
"lingniu.ingest.sink.kafka.consumer.auto-startup=false",
"lingniu.ingest.sink.kafka.consumer.bindings.vehicleStateEnvelopeConsumerProcessor.group-id=vehicle-state",
"lingniu.ingest.sink.kafka.consumer.bindings.vehicleStateEnvelopeConsumerProcessor.topics[0]=vehicle.realtime");
@Test
void createsKafkaEnvelopeConsumerRunnerWhenConsumerBindingIsConfigured(CapturedOutput output) {
contextRunner.run(context -> {
assertThat(context).hasSingleBean(KafkaEnvelopeConsumerRunner.class);
assertThat(context.getBean(KafkaEnvelopeConsumerRunner.class).workers()).hasSize(1);
});
assertThat(output).doesNotContain("114.55.58.251");
}
@SuppressWarnings("unchecked")
private static KafkaProducer<String, byte[]> kafkaProducer() {
return mock(KafkaProducer.class);
}
}

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package com.lingniu.ingest.sink.kafka;
import org.junit.jupiter.api.Test;
import java.util.Arrays;
import static org.assertj.core.api.Assertions.assertThat;
class KafkaSinkPropertiesTest {
@Test
void defaultKafkaBrokerUsesProductionAddressButCanStillBeOverriddenByConfigBinding() {
KafkaSinkProperties props = new KafkaSinkProperties();
assertThat(props.getBootstrapServers()).isEqualTo("114.55.58.251:9092");
props.setBootstrapServers("kafka.internal:9092");
assertThat(props.getBootstrapServers()).isEqualTo("kafka.internal:9092");
}
@Test
void exposesNoBackendTypeBecauseKafkaIsTheOnlySink() {
assertThat(Arrays.stream(KafkaSinkProperties.class.getMethods()).map(method -> method.getName()))
.doesNotContain("getType", "setType");
}
}

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package com.lingniu.ingest.sink.kafka;
import com.lingniu.ingest.api.ProtocolId;
import com.lingniu.ingest.api.event.AlarmPayload;
import com.lingniu.ingest.api.event.LocationPayload;
import com.lingniu.ingest.api.event.RealtimePayload;
import com.lingniu.ingest.api.event.VehicleEvent;
import org.junit.jupiter.api.Test;
import java.time.Instant;
import java.util.List;
import java.util.Map;
import java.util.Set;
import static org.assertj.core.api.Assertions.assertThat;
class TopicRouterTest {
@Test
void rawArchiveRoutesToVersionedGb32960RawTopicByDefault() {
TopicRouter router = new TopicRouter(new KafkaSinkProperties.Topics());
assertThat(router.route(rawArchive())).isEqualTo("vehicle.raw.gb32960.v1");
}
@Test
void normalizedGb32960EventsRouteToVersionedEventTopicByDefault() {
TopicRouter router = new TopicRouter(new KafkaSinkProperties.Topics());
assertThat(router.route(realtime())).isEqualTo("vehicle.event.gb32960.v1");
assertThat(router.route(location())).isEqualTo("vehicle.event.gb32960.v1");
assertThat(router.route(alarm())).isEqualTo("vehicle.event.gb32960.v1");
assertThat(router.route(login())).isEqualTo("vehicle.event.gb32960.v1");
assertThat(router.route(logout())).isEqualTo("vehicle.event.gb32960.v1");
assertThat(router.route(heartbeat())).isEqualTo("vehicle.event.gb32960.v1");
}
@Test
void dlqDefaultsToVersionedGb32960DlqTopic() {
KafkaSinkProperties.Topics topics = new KafkaSinkProperties.Topics();
assertThat(topics.getDlq()).isEqualTo("vehicle.dlq.gb32960.v1");
}
private static VehicleEvent.RawArchive rawArchive() {
return new VehicleEvent.RawArchive(
"raw-1",
"VIN001",
ProtocolId.GB32960,
Instant.parse("2026-06-23T07:00:00Z"),
Instant.parse("2026-06-23T07:00:01Z"),
"trace-raw-1",
Map.of("platformAccount", "Hyundai"),
0x02,
0,
new byte[] {0x23, 0x23});
}
private static VehicleEvent.Realtime realtime() {
return new VehicleEvent.Realtime(
"event-1",
"VIN001",
ProtocolId.GB32960,
Instant.parse("2026-06-23T07:00:00Z"),
Instant.parse("2026-06-23T07:00:01Z"),
"trace-1",
Map.of("platformAccount", "Hyundai"),
new RealtimePayload(
42.1, 1234.5, 80.0, null, null,
null, null, null, null, null, null,
RealtimePayload.VehicleState.STARTED,
RealtimePayload.ChargingState.UNCHARGED,
RealtimePayload.RunningMode.ELECTRIC,
null, null, null,
113.12, 23.45, null, null, null, null));
}
private static VehicleEvent.Location location() {
return new VehicleEvent.Location(
"event-2",
"VIN001",
ProtocolId.GB32960,
Instant.parse("2026-06-23T07:00:00Z"),
Instant.parse("2026-06-23T07:00:01Z"),
"trace-2",
Map.of("platformAccount", "Hyundai"),
new LocationPayload(113.12, 23.45, 0, 42.1, 90, 0, 0));
}
private static VehicleEvent.Alarm alarm() {
return new VehicleEvent.Alarm(
"event-3",
"VIN001",
ProtocolId.GB32960,
Instant.parse("2026-06-23T07:00:00Z"),
Instant.parse("2026-06-23T07:00:01Z"),
"trace-3",
Map.of("platformAccount", "Hyundai"),
new AlarmPayload(
AlarmPayload.AlarmLevel.MINOR,
1,
"GB32960_ALARM",
List.of("1"),
Set.of("bit0"),
113.12,
23.45,
AlarmPayload.SafetyCategory.GENERAL,
false,
AlarmPayload.HydrogenLeakLevel.NONE,
false));
}
private static VehicleEvent.Login login() {
return new VehicleEvent.Login(
"event-4",
"VIN001",
ProtocolId.GB32960,
Instant.parse("2026-06-23T07:00:00Z"),
Instant.parse("2026-06-23T07:00:01Z"),
"trace-4",
Map.of("platformAccount", "Hyundai"),
"iccid-1",
"V2016");
}
private static VehicleEvent.Logout logout() {
return new VehicleEvent.Logout(
"event-5",
"VIN001",
ProtocolId.GB32960,
Instant.parse("2026-06-23T07:00:00Z"),
Instant.parse("2026-06-23T07:00:01Z"),
"trace-5",
Map.of("platformAccount", "Hyundai"));
}
private static VehicleEvent.Heartbeat heartbeat() {
return new VehicleEvent.Heartbeat(
"event-6",
"VIN001",
ProtocolId.GB32960,
Instant.parse("2026-06-23T07:00:00Z"),
Instant.parse("2026-06-23T07:00:01Z"),
"trace-6",
Map.of("platformAccount", "Hyundai"));
}
}

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package com.lingniu.ingest.sink.kafka;
import com.lingniu.ingest.sink.kafka.proto.DecodedFactPayload;
import com.lingniu.ingest.sink.kafka.proto.ParseStatusProto;
import com.lingniu.ingest.sink.kafka.proto.RawFrameFactPayload;
import com.lingniu.ingest.sink.kafka.proto.VehicleEnvelope;
import org.junit.jupiter.api.Test;
import static org.assertj.core.api.Assertions.assertThat;
class VehicleEnvelopeProtoCompatibilityTest {
@Test
void rawFrameFactPayloadRoundTripsThroughEnvelope() throws Exception {
VehicleEnvelope envelope = VehicleEnvelope.newBuilder()
.setSchemaVersion("2.0")
.setEventId("frame-1")
.setVin("VIN001")
.setSource("GB32960")
.setEventTimeMs(1782662400000L)
.setIngestTimeMs(1782662400001L)
.setRawFrameFact(RawFrameFactPayload.newBuilder()
.setFrameId("frame-1")
.setVehicleKey("VIN001")
.setMessageId(2)
.setRawUri("archive://raw/2026/06/29/GB32960/VIN001/frame-1.bin")
.setChecksum("sha256:abc")
.setRawSizeBytes(128)
.setParseStatus(ParseStatusProto.PARSE_STATUS_SUCCEEDED)
.build())
.build();
VehicleEnvelope parsed = VehicleEnvelope.parseFrom(envelope.toByteArray());
assertThat(parsed.hasRawFrameFact()).isTrue();
assertThat(parsed.getRawFrameFact().getFrameId()).isEqualTo("frame-1");
assertThat(parsed.getRawFrameFact().getParseStatus()).isEqualTo(ParseStatusProto.PARSE_STATUS_SUCCEEDED);
}
@Test
void decodedFactPayloadRoundTripsThroughEnvelope() throws Exception {
VehicleEnvelope envelope = VehicleEnvelope.newBuilder()
.setSchemaVersion("2.0")
.setEventId("fact-1")
.setVin("VIN001")
.setSource("JT808")
.setEventTimeMs(1782662400000L)
.setIngestTimeMs(1782662400001L)
.setDecodedFact(DecodedFactPayload.newBuilder()
.setFactId("fact-1")
.setFrameId("frame-1")
.setFactType("location")
.setVehicleKey("jt808:013912345678")
.setRawUri("archive://raw/2026/06/29/JT808/jt808_013912345678/frame-1.bin")
.putFields("longitude", "120.1")
.putFields("latitude", "30.1")
.build())
.build();
VehicleEnvelope parsed = VehicleEnvelope.parseFrom(envelope.toByteArray());
assertThat(parsed.hasDecodedFact()).isTrue();
assertThat(parsed.getDecodedFact().getFieldsMap()).containsEntry("longitude", "120.1");
}
}