m-tilab

java -jar \
target/Distributed-Service-0.0.1-SNAPSHOT.jar \
--spring.application.name=Service-1 \
--server.port=8080

java -jar \
target/Distributed-Service-0.0.1-SNAPSHOT.jar \
--spring.application.name=Service-2 \
--server.port=8090

m-tilab

opentracing:
  jaeger:
    http-sender:
      url: http://localhost:14268/api/traces

m-tilab

version: '3.3'
services:
  jaeger-allinone:
    image: jaegertracing/all-in-one:1.42
    ports:
      - 6831:6831/udp
      - 6832:6832/udp
      - 16686:16686
      - 14268:14268

m-tilab

@RestController
@RequestMapping("/service")
public class Controller {

    private static final Logger logger = LoggerFactory.getLogger(Controller.class);
    private RestTemplate restTemplate;

    @Value("${spring.application.name}")
    private String applicationName;

m-tilab

    implementation group: 'io.opentracing.contrib', name: 'opentracing-spring-jaeger-cloud-starter', version: '3.3.1'
    implementation('io.projectreactor:reactor-core') {
        version {
            strictly '3.4.26'
        }
    }

m-tilab

<dependency>
  <groupId>io.opentracing.contrib</groupId>
  <artifactId>opentracing-spring-jaeger-cloud-starter</artifactId>
  <version>3.3.1</version>
  <exclusions>
    <exclusion>
      <groupId>io.projectreactor</groupId>
      <artifactId>reactor-core</artifactId>
    </exclusion>
  </exclusions>

m-tilab

<dependency>
   <groupId>io.opentracing.contrib</groupId>
   <artifactId>opentracing-spring-jaeger-cloud-starter</artifactId>
   <version>3.3.1</version>
</dependency>

m-tilab

...
searchService.search(ParameterObject.build()
                    .withType("type1")
                    .sortBy("ASC")
                    .build());
...

m-tilab

public class SearchService {

  /* Parameter Object example. Default values are abstracted into the Parameter Object 
  at the time of Object creation */
  public String search(ParameterObject parameterObject) {
    return getQuerySummary(parameterObject.getType(), parameterObject.getSortBy(),
        parameterObject.getSortOrder());
  }
  
  private String getQuerySummary(String type, String sortBy, SortOrder sortOrder) {

m-tilab

public class SearchService {
  //Method Overloading example. SortOrder is defaulted in this method
  public String search(String type, String sortBy) {
    return getQuerySummary(type, sortBy, SortOrder.DESC);
  }

  /* Method Overloading example. SortBy is defaulted in this method. Note that the type has to be 
  different here to overload the method */
  public String search(String type, SortOrder sortOrder) {
    return getQuerySummary(type, "price", sortOrder);