content: package dev.leons.ward.controllers;
  
  import dev.leons.ward.dto.UsageDto;
  import dev.leons.ward.exceptions.ApplicationNotConfiguredException;
  import dev.leons.ward.services.UsageService;
  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.RequestMapping;
  import org.springframework.web.bind.annotation.RestController;
  
  /**
   * UsageController displays responses from rest API
   *
   * @author Rudolf Barbu
   * @version 1.0.1
   */
  @RestController
  @RequestMapping(value = "/api/usage")
  public class UsageController
  {
      /**
       * Autowired UsageService object
       * Used for getting usage information
       */
      @Autowired
      private UsageService usageService;
  
      /**
       * Get request to display current usage information for processor, RAM and storage
       *
       * @return ResponseEntity to servlet
       */
      @GetMapping
      public ResponseEntity<UsageDto> getUsage() throws ApplicationNotConfiguredException
      {
          return new ResponseEntity<>(usageService.getUsage(), HttpStatus.OK);
      }
  }