content: /*
   * 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.ipc;
  
  import com.tencent.angel.conf.AngelConf;
  
  /**
   * Utility used by client connections such as {@link ServerCallable}
   */
  public class ConnectionUtils {
    /**
     * Calculate pause time.
     *
     * @param pause
     * @param tries
     * @return How long to wait after <code>tries</code> retries
     */
    public static long getPauseTime(final long pause, final int tries) {
      int ntries = tries;
      if (ntries >= AngelConf.RETRY_BACKOFF.length) {
        ntries = AngelConf.RETRY_BACKOFF.length - 1;
      }
      return pause * AngelConf.RETRY_BACKOFF[ntries];
    }
  }