2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2019 Nordix Foundation.
4 * Modifications Copyright (C) 2021 AT&T Intellectual Property. All rights reserved.
5 * ================================================================================
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
18 * SPDX-License-Identifier: Apache-2.0
19 * ============LICENSE_END=========================================================
22 package org.onap.policy.models.errors.concepts;
24 import java.util.ArrayList;
25 import java.util.List;
28 * Utility class for managing {@link ErrorResponse objects}.
30 * @author Liam Fallon (liam.fallon@est.tech)
32 public final class ErrorResponseUtils {
34 * Private constructor used to prevent sub class instantiation.
36 private ErrorResponseUtils() {
37 // Default constructor
41 * Store the cascaded messages from an exception and all its nested exceptions in an ErrorResponse object.
43 * @param throwable the top level exception
45 public static void getExceptionMessages(final ErrorResponse errorResponse, final Throwable throwable) {
46 errorResponse.setErrorMessage(throwable.getMessage());
48 List<String> cascascadedErrorMessages = new ArrayList<>();
50 for (var t = throwable; t != null; t = t.getCause()) {
51 cascascadedErrorMessages.add(t.getMessage());
54 if (!cascascadedErrorMessages.isEmpty()) {
55 errorResponse.setErrorDetails(cascascadedErrorMessages);