content: /**
   * 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 com.alibaba.wasp.client;
  
  import com.alibaba.wasp.FConstants;
  
  /**
   * Utility used by client connections such as
   * {@link com.alibaba.wasp.client.FConnection} and
   * {@link ServerCallable}
   */
  public class ConnectionUtils {
    /**
     * Calculate pause time. Built on {@link com.alibaba.wasp.FConstants#RETRY_BACKOFF}.
     * 
     * @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 >= FConstants.RETRY_BACKOFF.length) {
        ntries = FConstants.RETRY_BACKOFF.length - 1;
      }
      return pause * FConstants.RETRY_BACKOFF[ntries];
    }
  }