2 * Copyright © 2016-2018 European Support Limited
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
16 package org.openecomp.sdc.common.errors;
18 import com.fasterxml.jackson.databind.JsonMappingException;
19 import java.util.ArrayList;
20 import java.util.List;
23 import javax.validation.ConstraintViolation;
24 import javax.validation.ConstraintViolationException;
25 import javax.validation.Path;
26 import javax.ws.rs.core.MediaType;
27 import javax.ws.rs.core.Response;
28 import javax.ws.rs.core.Response.Status;
29 import javax.ws.rs.ext.ExceptionMapper;
30 import org.apache.commons.collections4.CollectionUtils;
31 import org.hibernate.validator.internal.engine.path.PathImpl;
32 import org.openecomp.core.utilities.file.FileUtils;
33 import org.openecomp.core.utilities.json.JsonUtil;
34 import org.openecomp.sdc.logging.api.Logger;
35 import org.openecomp.sdc.logging.api.LoggerFactory;
37 public class DefaultExceptionMapper implements ExceptionMapper<Exception> {
39 private static final String ERROR_CODES_TO_RESPONSE_STATUS_MAPPING_FILE = "errorCodesToResponseStatusMapping.json";
40 @SuppressWarnings("unchecked")
41 private static final Map<String, String> ERROR_CODE_TO_RESPONSE_STATUS = FileUtils
42 .readViaInputStream(ERROR_CODES_TO_RESPONSE_STATUS_MAPPING_FILE, stream -> JsonUtil.json2Object(stream, Map.class));
43 private static final Logger LOGGER = LoggerFactory.getLogger(DefaultExceptionMapper.class);
46 public Response toResponse(Exception exception) {
48 if (exception instanceof CoreException) {
49 response = transform((CoreException) exception);
50 } else if (exception instanceof ConstraintViolationException) {
51 response = transform((ConstraintViolationException) exception);
52 } else if (exception instanceof JsonMappingException) {
53 response = transform((JsonMappingException) exception);
55 response = transform(exception);
57 List<Object> contentTypes = new ArrayList<>();
58 contentTypes.add(MediaType.APPLICATION_JSON);
59 response.getMetadata().put("Content-Type", contentTypes);
63 private Response transform(final CoreException coreException) {
64 final ErrorCode code = coreException.code();
65 LOGGER.error(code.message(), coreException);
66 if (coreException.code().category().equals(ErrorCategory.APPLICATION)) {
67 final Status errorStatus = Status.valueOf(ERROR_CODE_TO_RESPONSE_STATUS.get(code.id()));
68 if (List.of(Status.BAD_REQUEST, Status.FORBIDDEN, Status.NOT_FOUND, Status.INTERNAL_SERVER_ERROR).contains(errorStatus)) {
69 return buildResponse(errorStatus, code);
71 return buildResponse(Status.EXPECTATION_FAILED, code);
73 return buildResponse(Status.INTERNAL_SERVER_ERROR, code);
76 private Response buildResponse(final Status status, final ErrorCode code) {
77 return Response.status(status).entity(toEntity(status, code)).build();
80 private Response transform(ConstraintViolationException validationException) {
81 Set<ConstraintViolation<?>> constraintViolationSet = validationException.getConstraintViolations();
83 String fieldName = null;
84 if (CollectionUtils.isEmpty(constraintViolationSet)) {
85 message = validationException.getMessage();
87 // getting the first violation message for the output response.
88 ConstraintViolation<?> constraintViolation = constraintViolationSet.iterator().next();
89 message = constraintViolation.getMessage();
90 fieldName = getFieldName(constraintViolation.getPropertyPath());
92 ErrorCode validationErrorCode = new ValidationErrorBuilder(message, fieldName).build();
93 LOGGER.error(validationErrorCode.message(), validationException);
94 return buildResponse(Status.EXPECTATION_FAILED, validationErrorCode);
97 private Response transform(JsonMappingException jsonMappingException) {
98 ErrorCode jsonMappingErrorCode = new JsonMappingErrorBuilder().build();
99 LOGGER.error(jsonMappingErrorCode.message(), jsonMappingException);
100 return buildResponse(Status.EXPECTATION_FAILED, jsonMappingErrorCode);
103 private Response transform(Exception exception) {
104 ErrorCode errorCode = new GeneralErrorBuilder().build();
105 LOGGER.error(errorCode.message(), exception);
106 return buildResponse(Status.INTERNAL_SERVER_ERROR, errorCode);
109 private String getFieldName(Path propertyPath) {
110 return ((PathImpl) propertyPath).getLeafNode().toString();
113 private Object toEntity(final Status status, final ErrorCode code) {
114 return new ErrorCodeAndMessage(status, code);