diff options
Diffstat (limited to 'cps-rest/src/main/java/org/onap/cps/rest/exceptions/CpsRestExceptionHandler.java')
-rw-r--r-- | cps-rest/src/main/java/org/onap/cps/rest/exceptions/CpsRestExceptionHandler.java | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/cps-rest/src/main/java/org/onap/cps/rest/exceptions/CpsRestExceptionHandler.java b/cps-rest/src/main/java/org/onap/cps/rest/exceptions/CpsRestExceptionHandler.java new file mode 100644 index 000000000..9cf4935d4 --- /dev/null +++ b/cps-rest/src/main/java/org/onap/cps/rest/exceptions/CpsRestExceptionHandler.java @@ -0,0 +1,98 @@ +/* + * ============LICENSE_START======================================================= + * Copyright (C) 2020 Pantheon.tech + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.cps.rest.exceptions; + +import org.apache.commons.lang3.exception.ExceptionUtils; +import org.hibernate.exception.ConstraintViolationException; +import org.onap.cps.exceptions.CpsException; +import org.onap.cps.exceptions.CpsNotFoundException; +import org.onap.cps.exceptions.CpsValidationException; +import org.onap.cps.rest.controller.CpsRestController; +import org.springframework.dao.EmptyResultDataAccessException; +import org.springframework.http.HttpStatus; +import org.springframework.http.ResponseEntity; +import org.springframework.web.bind.annotation.ExceptionHandler; +import org.springframework.web.bind.annotation.RestControllerAdvice; + +@RestControllerAdvice(assignableTypes = {CpsRestController.class}) +public class CpsRestExceptionHandler { + + /** + * Default exception handler. + * + * @param exception the exception to handle + * @return response with response code 500. + */ + @ExceptionHandler + public ResponseEntity<Object> handleInternalErrorException(Exception exception) { + return buildErrorResponse(HttpStatus.INTERNAL_SERVER_ERROR, exception); + } + + /* + TODO: Rid off extra dependencies. + + Generic exception handler and CpsException (incl. children) are the only + exceptions to be handled here. All the other exceptions which require a special + treatment should be rethrown as CpsException in the place of occurrence -> + e.g. persistence exceptions are to be handled in cps-ri module. + */ + + @ExceptionHandler({ConstraintViolationException.class}) + public ResponseEntity<Object> handleBadRequestException(Exception exception) { + return buildErrorResponse(HttpStatus.BAD_REQUEST, exception); + } + + @ExceptionHandler({EmptyResultDataAccessException.class}) + public ResponseEntity<Object> handleNotFoundException(Exception exception) { + return buildErrorResponse(HttpStatus.NOT_FOUND, exception); + } + + @ExceptionHandler({CpsException.class}) + public ResponseEntity<Object> handleCpsException(CpsException exception) { + return buildErrorResponse(HttpStatus.INTERNAL_SERVER_ERROR, exception.getMessage(), extractDetails(exception)); + } + + @ExceptionHandler({CpsValidationException.class}) + public ResponseEntity<Object> handleCpsValidationException(CpsException exception) { + return buildErrorResponse(HttpStatus.BAD_REQUEST, exception.getMessage(), extractDetails(exception)); + } + + @ExceptionHandler({CpsNotFoundException.class}) + public ResponseEntity<Object> handleCpsNotFoundException(CpsException exception) { + return buildErrorResponse(HttpStatus.NOT_FOUND, exception.getMessage(), extractDetails(exception)); + } + + private static ResponseEntity<Object> buildErrorResponse(HttpStatus status, Exception exception) { + return buildErrorResponse(status, exception.getMessage(), ExceptionUtils.getStackTrace(exception)); + } + + private static ResponseEntity<Object> buildErrorResponse(HttpStatus status, String message, String details) { + return new ResponseEntity<>( + ErrorMessage.builder().status(status.toString()).message(message).details(details).build(), + status + ); + } + + private static String extractDetails(CpsException exception) { + return exception.getCause() == null + ? exception.getDetails() + : ExceptionUtils.getStackTrace(exception.getCause()); + } +} |