Here are the examples of the java api lib.KafkaService taken from open source projects. By voting up you can indicate which examples are most useful and appropriate.
3 Examples
19
Source : App.java
with MIT License
from PacktPublishing
with MIT License
from PacktPublishing
@EnableKafka
@SpringBootApplication
@ComponentScan(basePackages = "lib")
public clreplaced App {
@Autowired
RedisService redis;
@Autowired
KafkaService kafka;
@Autowired
Tracer tracer;
@Bean
public AppId appId() {
return new AppId("storage-service");
}
@KafkaListener(topics = "message")
public void process(@Payload Message message, @Headers MessageHeaders headers) throws Exception {
Span span = kafka.startConsumerSpan("process", headers);
try (Scope scope = tracer.scopeManager().activate(span, true)) {
System.out.println("Received message: " + message.message);
redis.addMessage(message);
System.out.println("Added message to room.");
}
}
public static void main(String[] args) throws Exception {
SpringApplication.run(App.clreplaced, args);
}
}
19
Source : App.java
with MIT License
from PacktPublishing
with MIT License
from PacktPublishing
@EnableKafka
@SpringBootApplication
@ComponentScan(basePackages = "lib")
public clreplaced App {
@Bean
public AppId appId() {
return new AppId("giphy-service");
}
@Autowired
GiphyService giphy;
@Autowired
KafkaService kafka;
@Autowired
Tracer tracer;
@KafkaListener(topics = "message")
public void process(@Payload Message message, @Headers MessageHeaders headers) throws Exception {
Span span = kafka.startConsumerSpan("process", headers);
try (Scope scope = tracer.scopeManager().activate(span, true)) {
System.out.println("Received message: " + message.message);
if (message.image == null && message.message.trim().startsWith("/giphy")) {
String query = message.message.split("/giphy")[1].trim();
System.out.println("Giphy requested: " + query);
message.image = giphy.query(query);
if (message.image != null) {
kafka.sendMessage(message);
System.out.println("Updated message, url=" + message.image);
}
}
}
}
public static void main(String[] args) throws Exception {
SpringApplication.run(App.clreplaced, args);
}
}
19
Source : ChatController.java
with MIT License
from PacktPublishing
with MIT License
from PacktPublishing
@CrossOrigin(maxAge = 3600)
@RestController
public clreplaced ChatController {
@Autowired
KafkaTemplate<String, Message> kafkaTemplate;
@Autowired
RedisService redis;
@Autowired
KafkaService kafka;
@Bean
public Executor asyncExecutor() {
ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
executor.setCorePoolSize(2);
executor.setMaxPoolSize(2);
executor.setQueueCapacity(10);
executor.setThreadNamePrefix("send-to-kafka-");
executor.initialize();
return executor;
}
Executor executor1 = asyncExecutor();
@Autowired
Executor executor2;
private String sendMode = System.getProperty("KSEND");
@RequestMapping(value = "/message", method = RequestMethod.GET)
@ResponseBody
public List<Message> getMessages(@RequestParam(value = "room", defaultValue = "lobby") String room) throws Exception {
List<Message> messages = redis.getMessages(room);
System.out.println("Retrieved " + messages.size() + " messages.");
return messages;
}
@RequestMapping(value = "/message", consumes = { "application/json" }, produces = { MediaType.APPLICATION_JSON_VALUE }, method = RequestMethod.POST)
public ResponseEnreplacedy<Message> postMessage(@RequestBody Message msg) throws Exception {
msg.init();
System.out.println("Received message: " + msg);
if ("async1".equals(sendMode)) {
kafka.sendMessageAsync(msg, executor1);
System.out.println("Message sent async (executor1) to Kafka");
} else if ("async2".equals(sendMode)) {
kafka.sendMessageAsync(msg, executor2);
System.out.println("Message sent async (executor2) to Kafka");
} else {
kafka.sendMessage(msg);
System.out.println("Message sent sync to Kafka");
}
return new ResponseEnreplacedy<Message>(msg, HttpStatus.OK);
}
}