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Copy pathDefaultErrorDecoder.java
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68 lines (60 loc) · 2.16 KB
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/*
* Copyright © 2012 The Feign Authors ([email protected])
*
* 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
*
* http://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 feign.codec;
import static feign.FeignException.errorStatus;
import static feign.Util.RETRY_AFTER;
import feign.FeignException;
import feign.Response;
import feign.RetryableException;
import java.util.Collection;
import java.util.Map;
public class DefaultErrorDecoder implements ErrorDecoder {
private final ErrorDecoder.RetryAfterDecoder retryAfterDecoder =
new ErrorDecoder.RetryAfterDecoder();
private Integer maxBodyBytesLength;
private Integer maxBodyCharsLength;
public DefaultErrorDecoder() {
this.maxBodyBytesLength = null;
this.maxBodyCharsLength = null;
}
public DefaultErrorDecoder(Integer maxBodyBytesLength, Integer maxBodyCharsLength) {
this.maxBodyBytesLength = maxBodyBytesLength;
this.maxBodyCharsLength = maxBodyCharsLength;
}
@Override
public Exception decode(String methodKey, Response response) {
FeignException exception =
errorStatus(methodKey, response, maxBodyBytesLength, maxBodyCharsLength);
Long retryAfter = retryAfterDecoder.apply(firstOrNull(response.headers(), RETRY_AFTER));
if (retryAfter != null) {
return new RetryableException(
response.status(),
exception.getMessage(),
response.request().httpMethod(),
exception,
retryAfter,
response.request(),
methodKey);
}
return exception;
}
private <T> T firstOrNull(Map<String, Collection<T>> map, String key) {
if (map.containsKey(key) && !map.get(key).isEmpty()) {
return map.get(key).iterator().next();
}
return null;
}
}