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/*
* ============LICENSE_START=======================================================
* org.onap.dcae
* ================================================================================
* Copyright (c) 2020 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.dcaegen2.platform.mod.web.controller;
import org.onap.dcaegen2.platform.mod.model.exceptions.MissingRequestBodyException;
import org.onap.dcaegen2.platform.mod.model.exceptions.OperationNotAllowedException;
import org.onap.dcaegen2.platform.mod.model.exceptions.ResourceConflictException;
import org.onap.dcaegen2.platform.mod.model.exceptions.basemicroservice.BaseMicroserviceNotFoundException;
import org.onap.dcaegen2.platform.mod.model.exceptions.common.UserNotPassedException;
import org.onap.dcaegen2.platform.mod.model.exceptions.deploymentartifact.DeploymentArtifactNotFound;
import org.onap.dcaegen2.platform.mod.model.exceptions.msinstance.MsInstanceNotFoundException;
import org.onap.dcaegen2.platform.mod.model.exceptions.specification.SpecificationInvalid;
import org.onap.dcaegen2.platform.mod.model.restapi.ErrorResponse;
import org.onap.dcaegen2.platform.mod.model.restapi.GenericErrorResponse;
import com.fasterxml.jackson.core.JsonParseException;
import com.google.gson.Gson;
import lombok.extern.slf4j.Slf4j;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.validation.FieldError;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.context.request.WebRequest;
import org.springframework.web.reactive.function.client.WebClientResponseException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
/**
* a class to manage all exceptions
*/
@ControllerAdvice
@Slf4j
public class AppExceptionHandler {
@ExceptionHandler(value = {WebClientResponseException.class})
public ResponseEntity<ErrorResponse> handleCompSpecInvalidException
(WebClientResponseException ex, WebRequest request) {
return new ResponseEntity<ErrorResponse>
(new ErrorResponse(ex.getResponseBodyAsString()), HttpStatus.INTERNAL_SERVER_ERROR);
}
@ExceptionHandler(value = {JsonParseException.class})
public ResponseEntity<GenericErrorResponse> handleJsonParsedException
(JsonParseException ex, WebRequest request) {
GenericErrorResponse response = new GenericErrorResponse();
response.setStatus(HttpStatus.BAD_REQUEST);
response.setMessage("Invalid JSON request body format.");
response.setErrors(Arrays.asList(ex.getMessage()));
return new ResponseEntity<>(response, HttpStatus.BAD_REQUEST);
}
@ExceptionHandler
public ResponseEntity<GenericErrorResponse> specificationInvalid(SpecificationInvalid ex) {
Map<String, Object> errorResponse = new Gson().fromJson(ex.getMessage(), Map.class);
GenericErrorResponse response = new GenericErrorResponse();
response.setMessage((String) errorResponse.get("summary"));
response.setStatus(HttpStatus.BAD_REQUEST);
response.setErrors((List<String>) errorResponse.get("errors"));
return new ResponseEntity<>(response, HttpStatus.BAD_REQUEST);
}
@ExceptionHandler
public ResponseEntity<GenericErrorResponse> missingRequestBodyException(MissingRequestBodyException ex){
GenericErrorResponse response = new GenericErrorResponse();
response.setMessage("Missing paramaters");
response.setStatus(HttpStatus.BAD_REQUEST);
response.setErrors(Arrays.asList("Missing required request body paramaters"));
return new ResponseEntity<>(response, HttpStatus.BAD_REQUEST);
}
@ExceptionHandler
public ResponseEntity<ErrorResponse> resolveUserNotPassedException(UserNotPassedException ex){
return new ResponseEntity<>(new ErrorResponse(ex.getMessage()), HttpStatus.BAD_REQUEST);
}
@ExceptionHandler
public ResponseEntity<ErrorResponse> resolveMsInstanceNotFoundException(MsInstanceNotFoundException ex) {
log.error(ex.getMessage());
return new ResponseEntity<>(new ErrorResponse(ex.getMessage()), HttpStatus.BAD_REQUEST);
}
@ExceptionHandler
public ResponseEntity<ErrorResponse> resolveDeploymentArtifactNotFound(DeploymentArtifactNotFound ex) {
log.error(ex.getMessage());
return new ResponseEntity<>(new ErrorResponse(ex.getMessage()),
HttpStatus.BAD_REQUEST);
}
@ExceptionHandler
public ResponseEntity<ErrorResponse> resolveOperationNotAllowed(OperationNotAllowedException ex) {
log.error(ex.getMessage());
return new ResponseEntity<>(new ErrorResponse(ex.getMessage()),
HttpStatus.CONFLICT);
}
@ExceptionHandler
public ResponseEntity<ErrorResponse> resolveResourceConflict(ResourceConflictException ex) {
return new ResponseEntity<>(new ErrorResponse(ex.getMessage()), HttpStatus.CONFLICT);
}
@ExceptionHandler(value = {BaseMicroserviceNotFoundException.class})
public ResponseEntity<ErrorResponse> resolveResourceNotFoundExcetions(RuntimeException ex) {
log.error(ex.getMessage(), ex);
return new ResponseEntity<>(new ErrorResponse(ex.getMessage()), HttpStatus.CONFLICT);
}
@ExceptionHandler(MethodArgumentNotValidException.class)
public ResponseEntity<GenericErrorResponse> resolveBeanValidationException(MethodArgumentNotValidException ex){
log.error(ex.getMessage());
GenericErrorResponse response = new GenericErrorResponse();
response.setMessage("Validation failed.");
response.setStatus(HttpStatus.BAD_REQUEST);
response.setErrors(getBeanValidationErrors(ex));
return new ResponseEntity<>(response, HttpStatus.BAD_REQUEST);
}
private List<String> getBeanValidationErrors(MethodArgumentNotValidException ex) {
List<String> errors = new ArrayList<>();
ex.getBindingResult().getAllErrors().forEach((error) -> {
String fieldName = ((FieldError) error).getField();
String errorMessage = error.getDefaultMessage();
errors.add(String.format("%s: %s", fieldName, errorMessage));
});
return errors;
}
}
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