2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2019 Nordix Foundation.
4 * ================================================================================
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
17 * SPDX-License-Identifier: Apache-2.0
18 * ============LICENSE_END=========================================================
21 package org.onap.policy.models.errors.concepts;
23 import java.util.ArrayList;
24 import java.util.List;
27 * Utility class for managing {@link ErrorResponse objects}
29 * @author Liam Fallon (liam.fallon@est.tech)
31 public final class ErrorResponseUtils {
33 * Private constructor used to prevent sub class instantiation.
35 private ErrorResponseUtils() {}
38 * Store the cascaded messages from an exception and all its nested exceptions in an ErrorResponse object.
40 * @param throwable the top level exception
42 public static void getExceptionMessages(final ErrorResponse errorResponse, final Throwable throwable) {
43 errorResponse.setErrorMessage(throwable.getMessage());
45 List<String> cascascadedErrorMessages = new ArrayList<>();
47 for (Throwable t = throwable; t != null; t = t.getCause()) {
48 cascascadedErrorMessages.add(t.getMessage());
51 if (!cascascadedErrorMessages.isEmpty()) {
52 errorResponse.setErrorDetails(cascascadedErrorMessages);