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Retryer.java
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60 lines (51 loc) · 1.65 KB
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/*
* Copyright © 2012 The Feign Authors (feign@commonhaus.dev)
*
* 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;
/**
* Cloned for each invocation to {@link Client#execute(Request, feign.Request.Options)}.
* Implementations may keep state to determine if retry operations should continue or not.
*/
public interface Retryer extends Cloneable {
/**
* if retry is permitted, return (possibly after sleeping). Otherwise, propagate the exception.
*/
void continueOrPropagate(RetryableException e);
Retryer clone();
/**
* @deprecated use {@link DefaultRetryer} instead.
*/
@Deprecated
class Default extends DefaultRetryer {
public Default() {
super();
}
public Default(long period, long maxPeriod, int maxAttempts) {
super(period, maxPeriod, maxAttempts);
}
}
/** Implementation that never retries request. It propagates the RetryableException. */
Retryer NEVER_RETRY =
new Retryer() {
@Override
public void continueOrPropagate(RetryableException e) {
throw e;
}
@Override
public Retryer clone() {
return this;
}
};
}