001/** 002 * Logback: the reliable, generic, fast and flexible logging framework. 003 * Copyright (C) 1999-2015, QOS.ch. All rights reserved. 004 * 005 * This program and the accompanying materials are dual-licensed under 006 * either the terms of the Eclipse Public License v1.0 as published by 007 * the Eclipse Foundation 008 * 009 * or (per the licensee's choosing) 010 * 011 * under the terms of the GNU Lesser General Public License version 2.1 012 * as published by the Free Software Foundation. 013 */ 014package ch.qos.logback.core.util; 015 016/** 017 * A default {@link DelayStrategy} that implements a simple fixed delay. 018 * 019 * @author Carl Harris 020 * @since 1.1.0 021 */ 022public class FixedDelay implements DelayStrategy { 023 024 private final long subsequentDelay; 025 private long nextDelay; 026 027 /** 028 * Initialize a new {@code FixedDelay} with a given {@code initialDelay} and 029 * {@code subsequentDelay}. 030 * 031 * @param initialDelay value for the initial delay 032 * @param subsequentDelay value for all other delays 033 */ 034 public FixedDelay(long initialDelay, long subsequentDelay) { 035 this.nextDelay = initialDelay; 036 this.subsequentDelay = subsequentDelay; 037 } 038 039 /** 040 * Initialize a new {@code FixedDelay} with fixed delay value given by 041 * {@code delay} parameter. 042 * 043 * @param delay value for all delays 044 */ 045 public FixedDelay(int delay) { 046 this(delay, delay); 047 } 048 049 /** 050 * {@inheritDoc} 051 */ 052 public long nextDelay() { 053 long delay = nextDelay; 054 nextDelay = subsequentDelay; 055 return delay; 056 } 057 058}