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1   /*
2    * Copyright 2019-2022 the original author or authors.
3    *
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
7    *
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    *
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.
15   */
16  
17  package org.bremersee.exception.feign;
18  
19  import feign.FeignException;
20  import feign.Request;
21  import java.util.Collection;
22  import java.util.Map;
23  import lombok.Getter;
24  import org.bremersee.exception.HttpStatusAware;
25  import org.bremersee.exception.RestApiExceptionAware;
26  import org.bremersee.exception.model.RestApiException;
27  import org.springframework.http.HttpStatus;
28  
29  /**
30   * Feign exception that stores the error payload as a {@link RestApiException}. If the error payload
31   * cannot be parsed as {@link RestApiException}, the whole body of the error payload will be stored
32   * in the message field of the {@link RestApiException}.
33   *
34   * @author Christian Bremer
35   */
36  @Getter
37  public class FeignClientException extends FeignException
38      implements HttpStatusAware, RestApiExceptionAware {
39  
40    /**
41     * The rest api exception.
42     */
43    private final RestApiException restApiException;
44  
45    /**
46     * Instantiates a new feign client exception.
47     *
48     * @param status the response status code
49     * @param message the message of this {@link FeignClientException}
50     * @param request the original request
51     * @param responseHeaders the response headers
52     * @param responseBody the response body
53     * @param restApiException the rest api exception
54     */
55    public FeignClientException(
56        int status,
57        String message,
58        Request request,
59        Map<String, Collection<String>> responseHeaders,
60        byte[] responseBody,
61        RestApiException restApiException) {
62  
63      super(
64          resolveHttpStatusCode(status),
65          message,
66          request,
67          responseBody,
68          responseHeaders);
69      this.restApiException = restApiException;
70    }
71  
72    private static int resolveHttpStatusCode(int httpStatusCode) {
73      HttpStatus httpStatus = HttpStatus.resolve(httpStatusCode);
74      return httpStatus != null ? httpStatus.value() : HttpStatus.INTERNAL_SERVER_ERROR.value();
75    }
76  
77  }