Duration.java
Go to the documentation of this file.00001 /* 00002 * Software License Agreement (BSD License) 00003 * 00004 * Copyright (c) 2008, Willow Garage, Inc. 00005 * All rights reserved. 00006 * 00007 * Redistribution and use in source and binary forms, with or without 00008 * modification, are permitted provided that the following conditions 00009 * are met: 00010 * 00011 * * Redistributions of source code must retain the above copyright 00012 * notice, this list of conditions and the following disclaimer. 00013 * * Redistributions in binary form must reproduce the above 00014 * copyright notice, this list of conditions and the following 00015 * disclaimer in the documentation and/or other materials provided 00016 * with the distribution. 00017 * * Neither the name of Willow Garage, Inc. nor the names of its 00018 * contributors may be used to endorse or promote products derived 00019 * from this software without specific prior written permission. 00020 * 00021 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 00022 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 00023 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 00024 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 00025 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 00026 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 00027 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 00028 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 00029 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 00030 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 00031 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 00032 * POSSIBILITY OF SUCH DAMAGE. 00033 */ 00034 00035 // author: Jason Wolfe 00036 00037 00038 00039 package ros.communication; 00040 00041 public class Duration extends TimeUnit { 00042 public Duration() {} 00043 00044 public Duration(int secs, int nsecs) { 00045 this.secs = secs; 00046 this.nsecs = nsecs; 00047 normalize(); 00048 } 00049 00050 public Duration(double secs) { 00051 this.secs = (int) secs; 00052 this.nsecs = (int) ((secs - this.secs) * 1000000000); 00053 normalize(); 00054 } 00055 00056 public Duration(Duration t) { 00057 this.secs = t.secs; 00058 this.nsecs = t.nsecs; 00059 } 00060 00061 public Duration add (Duration d) { 00062 return new Duration(secs + d.secs,nsecs + d.nsecs); 00063 } 00064 00065 public Duration subtract (Duration d) { 00066 return new Duration(secs - d.secs,nsecs - d.nsecs); 00067 } 00068 00069 public void sleep() throws InterruptedException { 00070 Thread.sleep(totalNsecs() / 1000000); 00071 } 00072 00073 public boolean isLonger(Duration d) { 00074 normalize(); 00075 d.normalize(); 00076 return (secs > d.secs) || ((secs == d.secs) && nsecs > d.nsecs); 00077 } 00078 00079 public static final Duration MAX_VALUE = new Duration(Integer.MAX_VALUE, 999999999); 00080 00081 public String toString() { 00082 return secs + ":" + nsecs; 00083 } 00084 }