Package sk.antons.sbutils.http

Class JsonExceptionHandler

java.lang.Object
sk.antons.sbutils.http.JsonExceptionHandler
public class JsonExceptionHandler extends Object
Helper class for creating exception advice class. It allows you to define following <ul> <li> method for logging exception <li> method for resolving http status code <li> method for converting exception to json node response </ul> Exception is handled in following order <ul> <li> if logger is defined exception is send to logger <li> then traversing causedBy chain is searching for first exception for which statusResolver returns code (if not nound firstone is used with code 500) <li> then processor converts exception to json http response </ul> <pre> @ControllerAdvice(basePackages = "sk.antons.project.api") public class JsonExceptionAdvice { private static Logger log = LoggerFactory.getLogger(JsonExceptionAdvice.class); JsonExceptionHandler handler = JsonExceptionHandler.instance() .logger(t -> log.info("request failed {} ", Stk.trace(t))) // .statusResolver(JsonExceptionHandler.DefaultStatusResolver.instance() // .status(MyAppException.class, HttpStatus.CONFLICT)) // .processor(JsonExceptionHandler.DefaultExceptionProcessor.instance()) ); @ExceptionHandler(Throwable.class) public ResponseEntity<ObjectNode> throwable(final Throwable ex) { return handler.process(ex); } } </pre>
Author:
antons

  • Constructor Details

    • JsonExceptionHandler

      public JsonExceptionHandler()

  • Method Details

    • instance

      public static JsonExceptionHandler instance()

    • logger

      public JsonExceptionHandler logger(Consumer<Throwable> value)
      method for logging exception
      Parameters:
      value - method
      Returns:
      this

    • statusResolver

      public JsonExceptionHandler statusResolver(Function<Throwable,org.springframework.http.HttpStatus> value)
      method for resolving http status from exception
      Parameters:
      value - method
      Returns:
      this

    • processor

      public JsonExceptionHandler processor(Function<Throwable,com.fasterxml.jackson.databind.node.ObjectNode> value)
      method for converting exception to json response
      Parameters:
      value - method
      Returns:
      this

    • process

      public org.springframework.http.ResponseEntity<com.fasterxml.jackson.databind.node.ObjectNode> process(Throwable ex)
      Process Exception to http response. (main implementation)
      Parameters:
      ex -
      Returns: