1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to you under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 package org.apache.hadoop.hbase.client; 18 19 import org.apache.hadoop.hbase.util.EnvironmentEdgeManager; 20 21 /** 22 * Tracks the amount of time remaining for an operation. 23 */ 24 class RetryingTimeTracker { 25 26 private long globalStartTime = -1; 27 28 public void start() { 29 if (this.globalStartTime < 0) { 30 this.globalStartTime = EnvironmentEdgeManager.currentTimeMillis(); 31 } 32 } 33 34 public int getRemainingTime(int callTimeout) { 35 if (callTimeout <= 0) { 36 return 0; 37 } else { 38 if (callTimeout == Integer.MAX_VALUE) { 39 return Integer.MAX_VALUE; 40 } 41 int remainingTime = (int) ( 42 callTimeout - 43 (EnvironmentEdgeManager.currentTimeMillis() - this.globalStartTime)); 44 if (remainingTime < 1) { 45 // If there is no time left, we're trying anyway. It's too late. 46 // 0 means no timeout, and it's not the intent here. So we secure both cases by 47 // resetting to the minimum. 48 remainingTime = 1; 49 } 50 return remainingTime; 51 } 52 } 53 54 public long getStartTime() { 55 return this.globalStartTime; 56 } 57 }