content: package cn.datax.gateway.handler;
  
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.http.HttpStatus;
  import org.springframework.http.ResponseEntity;
  import org.springframework.web.bind.annotation.GetMapping;
  import org.springframework.web.bind.annotation.RestController;
  import reactor.core.publisher.Mono;
  import springfox.documentation.swagger.web.*;
  
  import java.util.Optional;
  
  @RestController
  public class SwaggerHandler {
  
      @Autowired(required = false)
      private SecurityConfiguration securityConfiguration;
  
      @Autowired(required = false)
      private UiConfiguration uiConfiguration;
  
      private final SwaggerResourcesProvider swaggerResources;
  
      @Autowired
      public SwaggerHandler(SwaggerResourcesProvider swaggerResources) {
          this.swaggerResources = swaggerResources;
      }
  
  
      @GetMapping("/swagger-resources/configuration/security")
      public Mono<ResponseEntity<SecurityConfiguration>> securityConfiguration() {
          return Mono.just(new ResponseEntity<>(
                  Optional.ofNullable(securityConfiguration).orElse(SecurityConfigurationBuilder.builder().build()), HttpStatus.OK));
      }
  
      @GetMapping("/swagger-resources/configuration/ui")
      public Mono<ResponseEntity<UiConfiguration>> uiConfiguration() {
          return Mono.just(new ResponseEntity<>(
                  Optional.ofNullable(uiConfiguration).orElse(UiConfigurationBuilder.builder().build()), HttpStatus.OK));
      }
  
      @GetMapping("/swagger-resources")
      public Mono<ResponseEntity> swaggerResources() {
          return Mono.just((new ResponseEntity<>(swaggerResources.get(), HttpStatus.OK)));
      }
  }
  