详解Java Chassis 3与Spring Cloud的互操作

/**
 * Java Chassis internal management apis.
 */
@Path("/scb/management")
public interface ManagementEndpoint {
  String NAME = "scb-management";

  /**
   * Health of this instance. If the instanceId match this instance, and this service is ready
   * to service return true. Otherwise, return false.
   *
   * This api is for internal instance status usage. Load balancer will call this api to check if
   * the target instance is alive.
   */
  @GET
  @Path("/health")
  boolean health(@QueryParam("instanceId") String instanceId, @QueryParam("registryName") String registryName);

  /**
   * Schemas of this instance.
   *
   * This api is for internal schema loading usage.
   */
  @POST
  @Path("/schema/contents")
  Map<String, String> schemaContents();
}

@RestController
@RequestMapping(("/scb/management"))
public class JavaChassisManagementEndpoint {
  private static final Logger LOGGER = LoggerFactory.getLogger(JavaChassisManagementEndpoint.class);

  @Autowired
  private Registration registration;

  @GetMapping(path = "/health")
  public boolean health(@RequestParam("instanceId") String instanceId,
      @RequestParam("registryName") String registryName) {
    return "sc-registry".equals(registryName) && registration.getInstanceId().equals(instanceId);
  }

  @PostMapping(path = "/schema/contents")
  public Map<String, String> schemaContents() {
    try {
      List<URI> resourceUris = ResourceUtil.findResourcesBySuffix("export", ".yaml");
      Map<String, String> result = new HashMap<>(resourceUris.size());
      for (URI uri : resourceUris) {
        String path = uri.toURL().getPath();
        String[] segments = path.split("/");
        if (segments.length < 2 || !"export".equals(segments[segments.length - 2])) {
          continue;
        }
        result.put(segments[segments.length - 1].substring(0, segments[segments.length - 1].indexOf(".yaml")),
            IOUtils.toString(uri, StandardCharsets.UTF_8));
      }
      return result;
    } catch (IOException | URISyntaxException e) {
      LOGGER.error("Load schema ids failed from microservices. {}.", e.getMessage());
      return Collections.emptyMap();
    }
  }
}