com.tencent.angel.io.retry.FailoverInvokerProvider Maven / Gradle / Ivy

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/*
 * Tencent is pleased to support the open source community by making Angel available.
 *
 * Copyright (C) 2017-2018 THL A29 Limited, a Tencent company. All rights reserved.
 *
 * 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
 *
 * https://opensource.org/licenses/Apache-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.tencent.angel.io.retry;

import com.tencent.angel.utils.PositiveAtomicCounter;

import java.util.List;

public class FailoverInvokerProvider {

  private List failoverList;

  private PositiveAtomicCounter counter = new PositiveAtomicCounter();

  public FailoverInvokerProvider(List failoverList) {
    this.failoverList = failoverList;
  }

  public T performceFailover() {
    return failoverList.get(counter.incrementAndGet() % failoverList.size());
  }

  public List getFailoverList() {
    return failoverList;
  }
}