com.netflix.curator.retry.BoundedExponentialBackoffRetry Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of curator-client Show documentation

curator developed by Netflix

There is a newer version: 1.3.3

/*
 *
 *  Copyright 2012 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 com.netflix.curator.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));
    }
}