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RetryableException.java
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59 lines (51 loc) · 1.85 KB
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/*
* Copyright 2013 Netflix, Inc.
*
* 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;
import com.google.common.base.Optional;
import java.util.Date;
/**
* This exception is raised when the {@link Response} is deemed to be retryable,
* typically via an {@link feign.codec.ErrorDecoder} when the {@link Response#status()
* status} is 503.
*/
public class RetryableException extends FeignException {
private static final long serialVersionUID = 1L;
private final Optional<Date> retryAfter;
/**
* @param retryAfter usually corresponds to the {@link com.google.common.net.HttpHeaders#RETRY_AFTER}
* header.
*/
public RetryableException(String message, Throwable cause, Date retryAfter) {
super(message, cause);
this.retryAfter = Optional.fromNullable(retryAfter);
}
/**
* @param retryAfter usually corresponds to the {@link com.google.common.net.HttpHeaders#RETRY_AFTER}
* header.
*/
public RetryableException(String message, Date retryAfter) {
super(message);
this.retryAfter = Optional.fromNullable(retryAfter);
}
/**
* Sometimes corresponds to the {@link com.google.common.net.HttpHeaders#RETRY_AFTER} header
* present in {@code 503} status. Other times parsed from an
* application-specific response.
*/
public Optional<Date> retryAfter() {
return retryAfter;
}
}