hu.perit.spvitamin.spring.feignclients.RestExceptionResponseDecoder Maven / Gradle / Ivy
/*
* Copyright 2020-2021 the original author or authors.
*
* 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
*
* https://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.
*/
package hu.perit.spvitamin.spring.feignclients;
import java.io.IOException;
import feign.FeignException;
import feign.Response;
import feign.Util;
import feign.codec.ErrorDecoder;
import hu.perit.spvitamin.core.StackTracer;
import hu.perit.spvitamin.spring.exceptionhandler.RestExceptionResponse;
import hu.perit.spvitamin.spring.json.JsonSerializable;
import lombok.extern.slf4j.Slf4j;
/**
* @author Peter Nagy
*/
@Slf4j
public class RestExceptionResponseDecoder implements ErrorDecoder {
@Override
public Exception decode(String methodKey, Response response) {
try {
if (response.body() != null) {
String body = Util.toString(response.body().asReader());
RestExceptionResponse exceptionResponse = JsonSerializable.fromJson(body, RestExceptionResponse.class);
Exception ex = this.getException(exceptionResponse);
return ex != null ? ex : FeignException.errorStatus(methodKey, response);
}
}
catch (IOException ex) {
log.error(StackTracer.toString(ex));
}
return FeignException.errorStatus(methodKey, response);
}
private Exception getException(RestExceptionResponse exceptionResponse) {
if (exceptionResponse != null && exceptionResponse.getException() != null) {
return exceptionResponse.getException().toException();
}
return null;
}
}
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