workflow-designer-be/src/main/java/org/onap/sdc/workflow/api/ExceptionsHandler.java

   1 /*
   2  * Copyright © 2018 European Support Limited
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *      http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package org.onap.sdc.workflow.api;
  18
  19 import static org.springframework.http.HttpStatus.BAD_REQUEST;
  20 import static org.springframework.http.HttpStatus.FORBIDDEN;
  21 import static org.springframework.http.HttpStatus.INTERNAL_SERVER_ERROR;
  22 import static org.springframework.http.HttpStatus.NOT_FOUND;
  23 import static org.springframework.http.HttpStatus.UNPROCESSABLE_ENTITY;
  24
  25 import org.onap.sdc.workflow.api.types.ErrorResponse;
  26 import org.onap.sdc.workflow.services.exceptions.EntityNotFoundException;
  27 import org.onap.sdc.workflow.services.exceptions.InvalidArtifactException;
  28 import org.onap.sdc.workflow.services.exceptions.UniqueValueViolationException;
  29 import org.onap.sdc.workflow.services.exceptions.VersionCreationException;
  30 import org.onap.sdc.workflow.services.exceptions.VersionModificationException;
  31 import org.onap.sdc.workflow.services.exceptions.VersionStateModificationException;
  32 import org.onap.sdc.workflow.services.exceptions.VersionStatusModificationException;
  33 import org.springframework.context.support.DefaultMessageSourceResolvable;
  34 import org.springframework.http.HttpHeaders;
  35 import org.springframework.http.HttpStatus;
  36 import org.springframework.http.ResponseEntity;
  37 import org.springframework.web.bind.MethodArgumentNotValidException;
  38 import org.springframework.web.bind.ServletRequestBindingException;
  39 import org.springframework.web.bind.annotation.ControllerAdvice;
  40 import org.springframework.web.bind.annotation.ExceptionHandler;
  41 import org.springframework.web.bind.annotation.RestController;
  42 import org.springframework.web.context.request.WebRequest;
  43 import org.springframework.web.servlet.mvc.method.annotation.ResponseEntityExceptionHandler;
  44
  45 @ControllerAdvice
  46 @RestController
  47 public class ExceptionsHandler extends ResponseEntityExceptionHandler {
  48
  49     @ExceptionHandler(EntityNotFoundException.class)
  50     public final ResponseEntity<ErrorResponse> handleNotFoundException(Exception exception) {
  51         return new ResponseEntity<>(new ErrorResponse(exception.getMessage()), NOT_FOUND);
  52     }
  53
  54     @ExceptionHandler({InvalidArtifactException.class, VersionModificationException.class,
  55             VersionStateModificationException.class, VersionStatusModificationException.class,
  56             UniqueValueViolationException.class})
  57     public final ResponseEntity<ErrorResponse> handleUnprocessableEntityException(Exception exception) {
  58         return new ResponseEntity<>(new ErrorResponse(exception.getMessage()), UNPROCESSABLE_ENTITY);
  59     }
  60
  61     @ExceptionHandler(VersionCreationException.class)
  62     public final ResponseEntity<ErrorResponse> handleVersioningErrorException(VersionCreationException exception) {
  63         return new ResponseEntity<>(new ErrorResponse(exception.getMessage()), FORBIDDEN);
  64     }
  65
  66     @ExceptionHandler(Exception.class)
  67     public final ResponseEntity<ErrorResponse> handleUnexpectedException(Exception exception) {
  68         return new ResponseEntity<>(new ErrorResponse(exception.getMessage()), INTERNAL_SERVER_ERROR);
  69     }
  70
  71     //For missing header exceptions
  72     @Override
  73     public ResponseEntity<Object> handleServletRequestBindingException(ServletRequestBindingException ex,
  74             HttpHeaders headers, HttpStatus status, WebRequest request) {
  75         return new ResponseEntity<>(new ErrorResponse(ex.getMessage()), BAD_REQUEST);
  76     }
  77
  78     @Override
  79     protected final ResponseEntity<Object> handleMethodArgumentNotValid(final MethodArgumentNotValidException exception,
  80             final HttpHeaders headers,
  81             final HttpStatus status,
  82             final WebRequest request) {
  83
  84         String errorMsg = exception.getBindingResult().getFieldErrors().stream()
  85                                   .map(DefaultMessageSourceResolvable::getDefaultMessage).findFirst()
  86                                   .orElse(exception.getMessage());
  87         return new ResponseEntity<>(new ErrorResponse(errorMsg), BAD_REQUEST);
  88     }
  89 }