studio.raptor.ddal.common.retry.BoundedExponentialBackoffRetry Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 studio.raptor.ddal.common.retry;
import com.google.common.annotations.VisibleForTesting;
/**
* Retry policy that retries a set number of times with an increasing (up to a maximum bound) sleep
* time between retries
*/
public class BoundedExponentialBackoffRetry extends ExponentialBackoffRetry {
private final int maxSleepTimeMs;
/**
* @param baseSleepTimeMs initial amount of time to wait between retries
* @param maxSleepTimeMs maximum amount of time to wait between retries
* @param maxRetries maximum number of times to retry
*/
public BoundedExponentialBackoffRetry(int baseSleepTimeMs, int maxSleepTimeMs, int maxRetries) {
super(baseSleepTimeMs, maxRetries);
this.maxSleepTimeMs = maxSleepTimeMs;
}
@VisibleForTesting
public int getMaxSleepTimeMs() {
return maxSleepTimeMs;
}
@Override
protected int getSleepTimeMs(int retryCount, long elapsedTimeMs) {
return Math.min(maxSleepTimeMs, super.getSleepTimeMs(retryCount, elapsedTimeMs));
}
}